Patent FR2188047A1

Device for the course stabilization of a rocket moving in a liquid medium

Устройство для образования рассредоточенных зарядных полостей во взрывных скважинах

Полезная модель относится к области разработок полезных ископаемых с применением взрывных работ методом скважинных зарядов и может быть использована, например, при проведении вскрышных работ на открытых горных месторождениях. Более конкретно, полезная модель относится к конструкции устройства для образования рассредоточенных зарядных полостей во взрывных скважинах.Устройство для образования рассредоточенных зарядных полостей во взрывных скважинах включает закрытый с нижнего конца рукав, выполненный из эластичного материала и соединенный с воронкой, выполненной в виде усеченного конуса, в верхнее основание которой, превышающее диаметр скважины, вмонтировано жесткое кольцо. На боковой поверхности воронки, вблизи жесткого кольца, расположено, по меньшей мере, одно отверстие, укрепленное металлическим люверсом. Рукав соединен с воронкой посредством шва, сформированного со складкой из эластичного материала, при этом шов расположен на внешней поверхности устройства. Предпочтительно, если рукав ...

ROCK FRACTURING METHOD

PROCESS FOR THE DRIVING OF A TUNNEL AND TUNNEL BORERS THEREFORE

A process for the driving of a tunnel into geological rock formations including hard rock obstacles includes the steps of cutting rock in forward direction from the head wall of the tunnel being driven, stopping the cutting operation when a hard rock obstacle is encountered, firing an explosive charge at the hard rock obstacle encountered for disintegration thereof and removing the disintegrated hard rock. A self-propelled tunnel borer is used which includes a loose rock removal arrangement. The tunnel borer includes at least one explosive charge launcher which is loaded with an explosive charge. When a hard rock obstacle is encountered in the head wall, the explosive charge launcher is aimed at the obstacle and the explosive charge fired at the obstacle for the disintegration thereof. The size and type of the explosive charge, the distance of the explosive charge from the hard rock obstacle upon detonation (blasting) and the explosive charge detonation itself are selected in such a way ...

DEVICE FOR THE COURSE STABILIZATION OF A ROCKET MOVING IN A LIQUID MEDIUM

Vorrichtung zum Brechen von Gesteinsbloecken

RAM ACCELERATOR SYSTEM

One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator devices propel projectiles which are accelerated by combustion of one or more combustible gasses in a ram effect to reach velocities exceeding 500 meters per second.

Vorrichtung zum Brechen von Gesteinsbloecken u. dgl.

Crushing method using large boreholes in underwater rock

本发明涉及到一种利用水下岩石中大钻孔的破碎方法，其中多个大钻孔在水下岩石中是以预定间隔来打钻的，钻孔形成了多个自由表面，大的落锤给钻孔的自由表面一击，从而增强了破碎效果。破碎方法包含下面的过程：多个排列在被破碎岩石上的大钻孔，每个的直径尺寸为100～300毫米，钻孔深度为1～10米，在落锤工作前保留有自由表面；相邻大钻孔之间的中间点被设为破碎的目标点；落锤被提升到垂直于被破碎的目标点上方的位置并自由下落给被破碎岩石一击；并重复上面的过程。

Process for driving rocket bodies

The combustion gases of a propellent charge which cause the recoil in the rocket drive accelerate an auxiliary mass counter to the mass of the rocket body to be propelled, without thereby coming into contact with the liquid under high pressure, before the acceleration operation has ended.

Projectile drilling system

A hole in geologic material, such as a wellbore, may be extended by impacting the working face of the hole with high velocity projectiles. A tube may be placed within the hole, and the lower end of the tube may be sealed to prevent ingress of material from the hole into the tube. A projectile may be accelerated through the tube, such as by igniting a combustible gas mixture to impart a force to the projectile. The impact of the projectile may extend the hole. In some cases, accelerated projectiles may be used in conjunction with a drill bit to drill a wellbore or other type of hole.

ORIENTATION OF ROCKET

Arrangement for orienting rockets moving in liquids

The horizontal orientation of a rocket moving in a liquid is achieved by an arrangement in which a magnet is attached to the rocket body. The axis of the rocket and the magnetic axis of the magnet form an azimuthal angle alpha , which determines the direction of the rocket relative to the geomagnetic meridian.

PROJECTILE DRILLING SYSTEM

A hole in geologic material, such as a wellbore, may be extended by impacting the working face of the hole with high velocity projectiles. A tube may be placed within the hole, and the lower end of the tube may be sealed to prevent ingress of material from the hole into the tube. A projectile may be accelerated through the tube, such as by igniting a combustible gas mixture to impart a force to the projectile. The impact of the projectile may extend the hole. In some cases, accelerated projectiles may be used in conjunction with a drill bit to drill a wellbore or other type of hole.

EXCAVATION OF ROCK

1371297 Feeding endless conveyers PHYSICS INTERNATIONAL CO 6 June 1972 26344/72 Heading B8A [Also in Divisions E1 and F3] In a projectile-firing tunnelling machine rock broken away from a tunnel face by the impact of the projectiles thereon is removed by a bucket 74 pivoted on the leading end of a conveyer 71 supported on the tunnel floor by rollers 72 disposed beneath a carriage 57 and reciprocable with respect to the carriage by rams 73. The bucket is pivoted by rams 75 and discharges into a hopper 71 above the conveyer. (For Figure see next page.)

ROCK FRACTURING METHOD

Verfahren zum Vortrieb eines Tunnels und für die Durchführung des Verfahrens eingerichtete Tunnelvortriebsmaschinen

"ANORDNUNG ZUR KURSAUSRICHTUNG VON IN FLUESSIGKEITEN BEWEGTEN RAKETEN"

PROJECTILE AUGMENTED BORING SYSTEM

Systems for forming or extending a tunnel or shaft within a working surface may include a ram accelerator assembly for accelerating a projectile into geologic material to weaken a region of the geologic material. A cutting tool may then be used to remove the weakened material more rapidly, with lower energy use and less wear on the cutting tool than use of the cutting tool independently. A collection assembly may be used to move debris away from the working surface while the projectile and cutting operations are performed to enable generally continuous use of the system. The number of projectiles that are accelerated and the rate at which projectiles are used may be controlled based on characteristics of the geologic material and the rate at which created debris may be removed, allowing an operation to be optimized for speed, cost, stability, or other factors.

RAM ACCELERATOR SYSTEM

One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator devices propel projectiles which are accelerated by combustion of one or more combustible gasses in a ram effect to reach velocities exceeding 500 meters per second.

Tunneling and mining method using pre-conditioned hole pattern

Systems for forming or extending a tunnel or shaft within geologic material may include a ram accelerator assembly for accelerating one or more projectiles into geologic material to weaken a region of the geologic material. The projectile(s) pre-condition the geologic material, such as by forming one or more holes in a central region of the material or to define a perimeter of the region to be displaced. A cutting tool or subsequent projectile impacts may then be used to remove the weakened material. The voids formed by the first projectile(s) cause compressive forces from subsequent impacts or cutting operations to be converted to tension forces that more efficiently break geologic material, which may fall into the voids created by the first projectile(s). The voids created by the projectile impacts may also control the material that is removed and the shape of a resulting section of the tunnel or shaft.

PROJECTILE DRILLING SYSTEM

A hole in geologic material, such as a wellbore, may be extended by impacting the working face of the hole with high velocity projectiles. A tube may be placed within the hole, and the lower end of the tube may be sealed to prevent ingress of material from the hole into the tube. A projectile may be accelerated through the tube, such as by igniting a combustible gas mixture to impart a force to the projectile. The impact of the projectile may extend the hole. In some cases, accelerated projectiles may be used in conjunction with a drill bit to drill a wellbore or other type of hole. 1. A method comprising:providing a first end of a tube within a hole;sealing the first end of the tube to isolate an interior of the tube from one or more materials within the hole;providing a projectile within the interior of the tube; andaccelerating the projectile toward the first end of the tube, wherein the projectile exits the tube and impacts a surface of the hole.2. The method of claim 1 , wherein the first end of the tube is engaged with a drill bit having an orifice claim 1 , the method further comprising:passing the projectile through the orifice of the drill bit; andactuating the drill bit to contact the surface of the hole.3. The method of claim 2 , further comprising:providing a drilling fluid into the tube to one or more of actuate, lubricate, or cool the drill bit, wherein the drilling fluid includes a propellant material entrained therein; andproviding a force to the projectile using a pressure generated by the propellant material.4. The method of claim 1 , further comprising:providing a propellant material proximate to a second end of the tube opposite the first end;wherein accelerating the projectile includes applying a force to the projectile using the propellant material.5. The method of claim 4 , wherein the propellant material includes one or more combustible gasses claim 4 , the method further comprising igniting the one or more combustible gasses to generate the ...

Crushing method using large boreholes in underwater rock

The present invention relates to a crushing method using large boreholes in an underwater rock in which plural large boreholes are drilled on the rock in a predetermined space, the drilled boreholes form plural free surfaces, and the large drop hammer gives a blow to the free surface, thus enhancing the crushing effect. The crushing method is comprised of the following processes: plural large boreholes, of which each size is 100~300 mmphi, are arranged on the rock to be crushed, and are drilled in a depth of 1~10 m, and the free surface is reserved before the drop hammer work; a middle point between the adjoining large boreholes is set as target point; the drop hammer is lift above a position perpendicular to the target point, and is free-fallen to give a blow to the rock to be crushed; and the above processes are repeatedly operated.

Crushing method using large boreholes in underwater rock

The present invention relates to a crushing method using large boreholes in an underwater rock in which plural large boreholes are drilled on the rock in a predetermined space, the drilled boreholes form plural free surfaces, and the large drop hammer gives a blow to the free surface, thus enhancing the crushing effect. The crushing method is comprised of the following processes: plural large boreholes, of which each size is 100˜300 mmφ, are arranged on the rock to be crushed, and are drilled in a depth of 1˜10 m, and the free surface is reserved before the drop hammer work; a middle point between the adjoining large boreholes is set as target point; the drop hammer is lift above a position perpendicular to the target point, and is free-fallen to give a blow to the rock to be crushed; and the above processes are repeatedly operated.

PROJECTILE AUGMENTED BORING SYSTEM

Ram accelerator system

Ram accelerator system

一个或多个冲压加速器装置可以用于在地质或其他材料中形成一个或多个孔。这些孔可以用于钻孔、隧道掘进、挖掘等。所述冲压加速器装置推进通过燃烧处于冲压效应的一种或多种可燃气体来加速的弹丸达到超过每秒500米的速度。

DRILL-AND-BLAST MODULE

HOLE DRILL AND DEBRIS CLEARANCE METHOD AND MEANS

In a method and means of rock fracturing and excavating holes using a cannon to fire hypervelocity projectiles at the rock, the debris created in the course of such excavation is removed by releasing the propellant gases created in the firing of the projectiles in the hole in a manner to blow the debris out of the hole.

Device for the course stabilization of a rocket moving in a liquid medium

The horizontal orientation of a rocket moving in a liquid is achieved by an arrangement in which a magnet is attached to the rocket body. The axis of the rocket and the magnetic axis of the magnet form an azimuthal angle alpha , which determines the direction of the rocket relative to the geomagnetic meridian.

RAM ACCELERATOR SYSTEM

One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator devices propel projectiles which are accelerated by combustion of one or more combustible gasses in a ram effect to reach velocities exceeding 500 meters per second. 1. A system comprising:a control system to determine one or more firing parameters; a plurality of sensors configured to communicate with the control system;', 'a plurality of ventless sections separated by section separation mechanisms, wherein each of the sections is configured to contain one or more combustible gasses; and', 'a ventless boost mechanism coupled to the plurality of ventless sections, the ventless boost mechanism configured to impart an impulse on a projectile such that the projectile is accelerated to a ram-effect velocity within the plurality of sections., 'one or more ram accelerators configured based at least in part on the one or more firing parameters, each of the one or more ram accelerators comprising2. The system of claim 1 , wherein an end of the plurality of ventless sections is at least partially in contact with one or more of a geologic material or a fluid in a hole formed by impact of the projectile.3. The system of claim 1 , further comprising a concrete delivery jacket coupled to the guide tube and configured to inject a liquid concrete mixture into a space between the concrete delivery jacket and walls of a hole formed by impact of the projectile.4. The system of claim 1 , further comprising a positioning device affixed to at least a portion of at least one of the ventless sections claim 1 , the positioning device configured to direct a path of the hole by directing exit of the projectile.5. The system of claim 1 , wherein the projectile comprises an outer core covering at least a portion of an inner core claim 1 , further wherein the inner core comprises one or more ...

Method for driving a tunnel and tunnel driving machines equipped for carrying out the method

In a method of driving a tunnel in geological formations with hard-rock obstacles, the heading face is directionally driven by cutting excavation of the rock by means of a self-propelled tunnel driving machine which has a rock conveyor (4). The tunnel driving machine carries at least one hollow-charge carriage (7) which is loaded with hollow charges. If a hard-rock obstacle appears in the heading face, the hollow-charge carriage (7) is directed towards the hard-rock obstacle, which is shattered by hollow-charge bombardment. The hollow charges, the distance of the hollow charge from the hard-rock obstacle upon detonation of the hollow charge (explosion), and the hollow-charge detonations are set in such a way that the shattered hard rock can be conveyed away by means of the rock conveyor (4) of the tunnel-driving machine. Tunnel driving machines equipped for carrying out the method are also described. ...

TUNNELING AND MINING METHOD USING PRE-CONDITIONED HOLE PATTERN

Systems for forming or extending a tunnel or shaft within geologic material may include a ram accelerator assembly for accelerating one or more projectiles into geologic material to weaken a region of the geologic material. The projectile(s) pre-condition the geologic material, such as by forming one or more holes in a central region of the material or to define a perimeter of the region to be displaced. A cutting tool or subsequent projectile impacts may then be used to remove the weakened material. The voids formed by the first projectile(s) cause compressive forces from subsequent impacts or cutting operations to be converted to tension forces that more efficiently break geologic material, which may fall into the voids created by the first projectile(s). The voids created by the projectile impacts may also control the material that is removed and the shape of a resulting section of the tunnel or shaft.

Device for the course stabilization of a rocket moving in a liquid medium

The horizontal orientation of a rocket moving in a liquid is achieved by an arrangement in which a magnet is attached to the rocket body. The axis of the rocket and the magnetic axis of the magnet form an azimuthal angle alpha , which determines the direction of the rocket relative to the geomagnetic meridian.

Ram accelerator system

One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator devices propel projectiles which are accelerated by combustion of one or more combustible gasses in a ram effect to reach velocities exceeding 500 meters per second.

Method of breaking free-standing rock boulders

Free-standing boulders or rocks are fractured and broken down into many smaller pieces by impacting the boulder with a high velocity projectile. The impact energy is delivered to the rock by a blunt nosed projectile in a time which is less than the transit time of a sound signal across the average diameter of the rock.

Method of breaking free-standing rock boulders

Free-standing boulders or rocks are fractured and broken down into many smaller pieces by impacting the boulder with a high velocity projectile. The impact energy is delivered to the rock by a blunt nosed projectile in a time which is less than the transit time of a sound signal across the average diameter of the rock.

Crushing method using large boreholes in underwater rock

The present invention relates to a crushing method using large boreholes in an underwater rock in which plural large boreholes are drilled on the rock in a predetermined space, the drilled boreholes form plural free surfaces, and the large drop hammer gives a blow to the free surface, thus enhancing the crushing effect. The crushing method is comprised of the following processes: plural large boreholes, of which each size is 100~300 mmphi, are arranged on the rock to be crushed, and are drilled in a depth of 1~10 m, and the free surface is reserved before the drop hammer work; a middle point between the adjoining large boreholes is set as target point; the drop hammer is lift above a position perpendicular to the target point, and is free-fallen to give a blow to the rock to be crushed; and the above processes are repeatedly operated.

HOLE DRILL AND DEBRIS CLEARANCE METHOD AND MEANS

Arrangement for orienting rockets moving in liquids

The horizontal orientation of a rocket moving in a liquid is achieved by an arrangement in which a magnet is attached to the rocket body. The axis of the rocket and the magnetic axis of the magnet form an azimuthal angle α, which determines the direction of the rocket relative to the geomagnetic meridian.

Ram accelerator system

One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator devices propel projectiles which are accelerated by combustion of one or more combustible gasses in a ram effect to reach velocities exceeding 500 meters per second.

Crushing method using large boreholes in underwater rock

Ram accelerator system

TUNNEL EXCAVATING METHOD AND TUNNEL EXCAVATOR FOR CARRYING OUT SAID METHOD

PURPOSE: To eliminate high costs for tunnel boring in a discontinuity structure, in rock mass containing hindering hard rocks emerging at the excavation site. CONSTITUTION: There is provided a method for boring a tunnel in a discontinuity structure in rock mass containing hindering hard rocks, in which a self- advancing tunnel boring machine equipped with a rock carrier 4 is used, whereby tunnel boring is carried out by rock mass excavation at the site of a tunnel to be bored. The tunnel boring machine is equipped with at least one drilling gun arm rack 7 for mounting a drilling gun 8 thereon. When the obstacle hard rocks emerge at the excavation site, orientation of the drilling gun arm rack to the hindering hard rocks, and crushing of the hindering hard rocks by operation of the drilling gun are performed in combination, and an interval between the hindering hard rocks and the drilling gun at the operation of the drilling gun (at the explosion), and the drilling gun operation are adjusted ...

Ram accelerator augmented drilling system

Systems for drilling or tunneling include an assembly for accelerating a projectile into a region of geologic material. An interaction between the projectile and the geologic material extends a borehole and forms debris. The debris may be reduced in size by moving the debris to a crushing device. The reduced-size debris is then moved toward the surface using fluid movement. Water jets or other types of devices may be used to cut or deform a perimeter of a region of geologic material before the projectile is accelerated to control the shape of the borehole and the manner in which debris is broken from the geologic material.

Ram accelerator system

One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator devices propel projectiles which are accelerated by combustion of one or more combustible gasses in a ram effect to reach velocities exceeding 500 meters per second.

Crushing method using large boreholes in underwater rock

PURPOSE: An underwater rock crushing method by using a large-diameter hole is provided to obtain a wide free surface by making plural large-diameter holes at regular intervals and to improve rock-cutting efficiency by applying shock by a large rock cutting bar and generating tension crack on an area between the free surfaces of the holes. CONSTITUTION: An underwater rock crushing method by using a large-diameter hole moves a rock breaking barge(20) installed with a jib crane(10) toward a rock to be cut(30), stops the rock breaking barge by settling anchors of the rock breaking barge on a base rock separated from a barge body at the predetermined distance, lifts a rock cutting bar(12) hung at a hoist rope(11) of the jib crane wound around a drum up to the predetermined height, and then hits the rock by falling freely the rock cutting bar. Before a rock cutting bar hitting step, large-diameter holes of 100¯300mm phi are drilled through the rock at the dept of 1¯10m and arranged at the predetermined intervals to secure a wide free surface. A middle spot between the adjacent holes is set as a hit target spot(A). Therefore, the rock is struck repeatedly by lifting vertically the rock cutting bar from the hit target spot and then freely dropping the bar.

Mining technology for pressure relief on small coal pillar or coal pillar-free roof cutting based on composite perforation

本发明公开了一种基于复合射孔在小煤柱或无煤柱切顶卸压的开采工艺，涉及煤炭开采领域。该开采工艺通过特定的方式进行射孔枪装配以及在井下装配，并进行起爆，裂缝长度大，预制孔道间距大，钻孔数量少；火药产生高温高压气体对射流孔道进行动载压裂，横向应力集中产生裂缝，切断了顶板应力传递，避免了临空巷道受回采动压的影响；顶板切顶后矿压释放，避免了大区域顶板垮落的安全隐患。在一些煤矿当中应用后，可以保证6m小煤柱的完整性和相邻采空区悬板切顶卸压的有效性。保证每个工作面多开采煤柱12m‑18m，比传统大煤柱提高了采煤的回收率10%‑20%；本工艺可以大范围推广，可产生巨大的经济效益，为延伸矿井的寿命和可持续开采做出不可估量的贡献。

Mining process for cutting top and releasing pressure on small coal pillar or coal pillar-free pillar based on composite perforation

本发明公开了一种基于复合射孔在小煤柱或无煤柱切顶卸压的开采工艺，涉及煤炭开采领域。该开采工艺通过特定的方式进行射孔枪装配以及在井下装配，并进行起爆，裂缝长度大，预制孔道间距大，钻孔数量少；火药产生高温高压气体对射流孔道进行动载压裂，横向应力集中产生裂缝，切断了顶板应力传递，避免了临空巷道受回采动压的影响；顶板切顶后矿压释放，避免了大区域顶板垮落的安全隐患。在一些煤矿当中应用后，可以保证6m小煤柱的完整性和相邻采空区悬板切顶卸压的有效性。保证每个工作面多开采煤柱12m‑18m，比传统大煤柱提高了采煤的回收率10%‑20%；本工艺可以大范围推广，可产生巨大的经济效益，为延伸矿井的寿命和可持续开采做出不可估量的贡献。

Ram accelerator augmented drilling system

Systems for drilling or tunneling include an assembly for accelerating a projectile into a region of geologic material. An interaction between the projectile and the geologic material extends a borehole and forms debris. The debris may be reduced in size by moving the debris to a crushing device. The reduced-size debris is then moved toward the surface using fluid movement. Water jets or other types of devices may be used to cut or deform a perimeter of a region of geologic material before the projectile is accelerated to control the shape of the borehole and the manner in which debris is broken from the geologic material.

High-pressure pneumatic equipment for energy-saving mineral exploitation

本发明涉及一种矿产节能开采高压气动设备，其主要由旋转驱动组件和高压气动部件两大部分组成，高压气动部件采用安装套件与旋转驱动部件固定连接，所述的旋转驱动组件包括：电机转子、驱动电机、电缆，所述的高压气动部件包括：高压气动喷射头、内置空气压缩机、内置电源、储气囊；所述的高压气动喷射头安装在储气囊的右端，所述的内置空气压缩机设置在储气囊的外侧的下部，内置电源安装在储气囊外围。本发明提出的一种矿产节能开采高压气动设备，其结构简单，设计巧妙合理，成本较低，具有广阔的应用前景。

Projectile enhanced drilling system

用于在工作表面内形成或延伸隧道或竖井的系统可包括用于使射弹加速进入地质材料中以削弱所述地质材料的区域的冲压加速器组件。随后可使用切削工具来更快地移除所述削弱的材料，其中与单独使用所述切削工具相比，能量使用更少并且对所述切削工具的磨损更少。在执行射弹和切削操作时，可使用收集组件来将碎屑从所述工作表面移走，以使得能够大体上连续地使用所述系统。可基于所述地质材料的特性和可移除所产生的碎屑的速率来控制被加速的射弹的数量和射弹使用的速率，从而允许针对速度、成本、稳定性或其他因素来优化操作。

Projectile drilling system

A hole in geologic material, such as a wellbore, may be extended by impacting the working face of the hole with high velocity projectiles. A tube may be placed within the hole, and the lower end of the tube may be sealed to prevent ingress of material from the hole into the tube. A projectile may be accelerated through the tube, such as by igniting a combustible gas mixture to impart a force to the projectile. The impact of the projectile may extend the hole. In some cases, accelerated projectiles may be used in conjunction with a drill bit to drill a wellbore or other type of hole.

Projectile augmented boring system

Systems for forming or extending a tunnel or shaft within a working surface may include a ram accelerator assembly for accelerating a projectile into geologic material to weaken a region of the geologic material. A cutting tool may then be used to remove the weakened material more rapidly, with lower energy use and less wear on the cutting tool than use of the cutting tool independently. A collection assembly may be used to move debris away from the working surface while the projectile and cutting operations are performed to enable generally continuous use of the system. The number of projectiles that are accelerated and the rate at which projectiles are used may be controlled based on characteristics of the geologic material and the rate at which created debris may be removed, allowing an operation to be optimized for speed, cost, stability, or other factors.

Projectile drilling system

Systems for drilling or tunneling include an assembly for accelerating a projectile through a first conduit into a region of geologic material, which generates debris. The debris may be reduced in size by moving the debris to a crushing device located in a second conduit using a conveying device, such as an auger. The reduced-size debris is then moved toward the surface using fluid movement. A third conduit may be used to provide and remove material from the bottom of the first conduit to control pressure at the end of the conduit to prevent ingress of material into the first conduit. Water jets or other types of devices may be used to cut or deform a perimeter of a region of geologic material before the projectile is accelerated to control the shape of the borehole and the manner in which debris is broken from the geologic material.

Arrangement for orienting rockets moving in liquids

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Projectile augmented boring system

Systems for forming or extending a tunnel or shaft within a working surface may include a ram accelerator assembly for accelerating a projectile into geologic material to weaken a region of the geologic material. A cutting tool may then be used to remove the weakened material. A collection assembly may be used to move debris away from the working surface while the projectile and cutting operations are performed to enable generally continuous use of the system. The number of projectiles that are accelerated and the rate at which projectiles are used may be controlled based on characteristics of the geologic material and the rate at which created debris may be removed.

Ram accelerator augmented drilling system

Systems for drilling or tunneling include an assembly for accelerating a projectile into a region of geologic material. An interaction between the projectile and the geologic material extends a borehole and forms debris. The debris may be reduced in size by moving the debris to a crushing device. The reduced-size debris is then moved toward the surface using fluid movement. Water jets or other types of devices may be used to cut or deform a perimeter of a region of geologic material before the projectile is accelerated to control the shape of the borehole and the manner in which debris is broken from the geologic material.

利用水下岩石中大钻孔的破碎方法

本发明涉及到一种利用水下岩石中大钻孔的破碎方法，其中多个大钻孔在水下岩石中是以预定间隔来打钻的，钻孔形成了多个自由表面，大的落锤给钻孔的自由表面一击，从而增强了破碎效果。破碎方法包含下面的过程：多个排列在被破碎岩石上的大钻孔，每个的直径尺寸为100～300毫米，钻孔深度为1～10米，在落锤工作前保留有自由表面；相邻大钻孔之间的中间点被设为破碎的目标点；落锤被提升到垂直于被破碎的目标点上方的位置并自由下落给被破碎岩石一击；并重复上面的过程。

冲压加速器增强型钻井系统

用于钻井或隧道挖掘的系统包括用于使射弹加速进入地质材料的区域的总成。所述射弹与所述地质材料之间的相互作用扩展钻孔并且形成碎屑。可通过将所述碎屑移动到压碎装置来减小所述碎屑的尺寸。然后使用流体移动使所述尺寸减小的碎屑朝向表面移动。在使所述射弹加速之前可使用喷水器或其他类型的装置来切削地质材料的区域的周边或使所述周边变形以控制所述钻孔的形状以及所述地质材料破裂产生碎屑的方式。

射弹增强型钻孔系统

用于在工作表面内形成或延伸隧道或竖井的系统可包括用于使射弹加速进入地质材料中以削弱所述地质材料的区域的冲压加速器组件。随后可使用切削工具来更快地移除所述削弱的材料，其中与单独使用所述切削工具相比，能量使用更少并且对所述切削工具的磨损更少。在执行射弹和切削操作时，可使用收集组件来将碎屑从所述工作表面移走，以使得能够大体上连续地使用所述系统。可基于所述地质材料的特性和可移除所产生的碎屑的速率来控制被加速的射弹的数量和射弹使用的速率，从而允许针对速度、成本、稳定性或其他因素来优化操作。

搂转机构、能量增强棒推送装置以及冲击波发生装置

本申请公开了一种搂转机构、能量增强棒推送装置以及冲击波发生装置，包括搂弹器、设置于螺旋推送器前端的能量增强棒转运部、以及设置于储能舱前端的能量增强棒搂转部；能量增强棒搂转部包括开设在储能舱内壁上的环形凹槽；能量增强棒转运部包括设置在螺旋推送器的活动套筒上的能量增强棒转运窗口；搂弹器的一侧为尖角结构，螺旋推送器和搂弹器旋转时，尖角结构将能量增强棒搂起，搂起的能量增强棒挤压位于能量增强棒转运窗口内且与其相邻的能量增强棒，进而将能量增强棒推至推杆通过孔的中心处。本申请解决了通过摆渡机构将能量增强棒摆渡到能量增强棒推送装置的中心孔，存在可靠性差和故障率高的问题。

基于复合射孔在小煤柱或无煤柱切顶卸压的开采工艺

本发明公开了一种基于复合射孔在小煤柱或无煤柱切顶卸压的开采工艺，涉及煤炭开采领域。该开采工艺通过特定的方式进行射孔枪装配以及在井下装配，并进行起爆，裂缝长度大，预制孔道间距大，钻孔数量少；火药产生高温高压气体对射流孔道进行动载压裂，横向应力集中产生裂缝，切断了顶板应力传递，避免了临空巷道受回采动压的影响；顶板切顶后矿压释放，避免了大区域顶板垮落的安全隐患。在一些煤矿当中应用后，可以保证6m小煤柱的完整性和相邻采空区悬板切顶卸压的有效性。保证每个工作面多开采煤柱12m‑18m，比传统大煤柱提高了采煤的回收率10%‑20%；本工艺可以大范围推广，可产生巨大的经济效益，为延伸矿井的寿命和可持续开采做出不可估量的贡献。