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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 15. Отображено 15.
09-09-2015 дата публикации

Injection slurry diffusion range and rule determining method during anchor rod slurry injection

Номер: CN104895595A
Принадлежит:

The invention discloses an injection slurry diffusion range and rule determining method during anchor rod slurry injection. The determining method comprises finishing installation of an anchor rod during underground chamber engineering anchoring and slurry injection, and slurry injection, primarily determining a diffusing range of the slurry in surrounding rocks via geological observation, building a 3D rectangular coordinate system with a slurry injection hole as an original point, designing a spatial position of monitoring points in an osmotic pressure monitoring network and determining a 3D coordinate of each monitoring points, arranging a high-precision infrared osmometer in the designed monitoring points, sending data monitored by the infrared osmometer to a data processing terminal, and drawing a slurry injection hydraulic pressure and slurry diffusing range spatial distribution map according to the data achieved by the data processing terminal. The beneficial effects of the injection ...

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19-08-2015 дата публикации

Novel flexible composite shotcrete layer support material

Номер: CN104844103A
Принадлежит:

The present invention relates to a novel flexible composite shotcrete layer support material which comprises the following components in parts by weight: 80-100 parts of cement, 80-120 parts of sands, 100-120 parts of stones, 60-100 parts of rubber particles, 40-60 parts of coal ash, 20-30 parts of hooked end steel fibers, 50-80 parts of water, 6-7 parts of a crosslinking agent, 5-8 parts of an additive, 2-10 parts of polyamic acid resin with a solid content of 10%-25% and 3-5 parts of a 1% silane coupler solution. The prepared shotcrete layer material is greatly improved in compression strength, rupture strength and flexural toughness. The novel flexible composite shotcrete layer support material can be applied to the field of support to surrounding rocks of complex rock layers with characteristics of high stress, soft rock, expansion, flowing deformation, fault structure fracture zones, mining influence and the like or other dynamic pressure tunnel as well as the field of underground ...

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22-04-2015 дата публикации

Mining telescopic measuring rod manufactured by transforming fishing pole

Номер: CN104534973A
Принадлежит:

The invention provides a mining telescopic measuring rod manufactured by transforming a fishing pole. The measuring rod comprises a measuring tape (1), wherein the length measuring range of the measuring tape (1) is not less than 3m; the shell of the measuring tape (1) is fixed on a base (2); the cross section of the base (2) is of a U shape; the base (2) is made of a steel plate; a plug (3) is arranged at one end of the base (2), and a measuring tape guiding plate (4) is arranged at the other end of the base (2); the belt (6) of the measuring tape (1) can go in and out of the shell of the measuring tape (1) against the measuring tape guiding plate (4); the outer end of the belt (6) is fixedly connected with the extending end tip of a telescopic fishing pole (5) which is made of a non-conductive material. The invention aims to provide the mining telescopic measuring rod which is manufactured by transforming a fishing pole, is small in size and convenient to use, can be used for well guaranteeing ...

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30-04-2014 дата публикации

Repairing machine for recycled anchor rods

Номер: CN103752658A
Принадлежит:

A repairing machine for recycled anchor rods comprises a frame. Two jacks are arranged side by side on the frame and along the front-back horizontal direction of the left side of an upper horizontal plate and the left side of a lower horizontal plate and are respectively connected with an oil pump through an oil line via a hydraulic control device, cylinder bases of the jacks are mounted on the upper horizontal plate and the lower horizontal plate through rotating pin shafts, the middle portions of cylinders of the jacks are respectively placed into a guide groove made of U-steel, tops of piston rods of the jacks are respectively hinged to a pressure beam which is horizontally arranged along front-back direction, a supporting plate is arranged under the pressure beam, a stop plate is arranged at the left end of the supporting plate, the top side of the stop plate is located on the front-back vertical direction, the right top side of the stop plate can be matched with the left top side of ...

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05-08-2015 дата публикации

Steel pipe concrete arch frame coupling performance detection and evaluation method, and steel pipe concrete arch frame coupling performance detection structure

Номер: CN104820022A
Принадлежит:

The present invention relates to a steel pipe concrete arch frame coupling performance detection and evaluation method, and a steel pipe concrete arch frame coupling performance detection structure. The method mainly comprises: completing engineering main body construction, adhering a strain sheet on the steel pipe outside the steel pipe concrete arch frame, determining the strain value of the steel pipe outside the arch frame under the wall rock pressure, determining the damage amount of the concrete inside the steel pipe through an acoustic emission technology, calculating the steel pipe concrete coupling coefficient of the steel pipe concrete, comparing the damage conditions of the steel pipe and the concrete, and comprehensively analyzing the steel pipe concrete coupling performance of the steel pipe concrete arch frame. According to the present invention, the evaluation method is simple and is easy to perform; and with the calculation of the steel pipe concrete coupling coefficient ...

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26-08-2015 дата публикации

Bolting and injecting quality evaluation method for underground engineering

Номер: CN104866709A
Принадлежит:

The invention discloses a bolting and injecting quality method for underground engineering. The evaluation method comprises the following steps: acquiring data before grouting; acquiring data after grouting; according to the data acquired before and after grouting, respectively calculating the borehole coring increasing rate K1, the internal friction angle increasing rate K2, the cohesive force increasing rate K3, the residual strength increasing rate K4, the wave velocity increasing rate K5, the releasing range reduction ratio K6, the drilling pressure increasing rate K7 and the torque increasing rate K8 before and after grouting; utilizing a weight analysis method to establish the quantitative evaluation indexes of the rock mass strength before and after grouting, so as to perform quantitative evaluation on the bolting and injecting quality of surrounding rock, and comparing the quantitative evaluation value with an on-site bolting and injecting quality statistic standard value. The bolting ...

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02-09-2015 дата публикации

Bolt-grouting support method for roadway in three-soft high-stress region

Номер: CN104879149A
Принадлежит:

The invention relates to a bolt-grouting support method for a roadway in a three-soft high-stress region. The method is characterized by comprising the following steps: 1, mixing of cement slurry; 2, mounting of grouting anchor cables; 3, mounting of grouting anchor bolts and the like. The bolt-grouting support method has the following advantages: the support mode can be applied to a deep roadway, especially a coal roadway with soft and broken surrounding rock; the method can be implemented through grouting reinforcement, the mechanical properties of the soft and broken surrounding rock can be improved, the essential attributes of soft rock can be improved fundamentally, grouting is performed through combination of the grouting anchor bolts and the grouting anchor cables, a reinforcement ring can be formed on the surrounding rock around the roadway, the self-supporting capacity of the surrounding rock can be improved, and a great function of resistance to deformation and fracture of the ...

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19-02-2014 дата публикации

Full-thread anchor rod pre-tightening force exertion device capable of rapidly hauling off anchor rod and operation method

Номер: CN103590843A
Принадлежит:

The invention concretely discloses a full-thread anchor rod pre-tightening force exertion device capable of hauling off an anchor rod and an operation method. The device comprises a front-arranged beam, a rear-arranged beam and an anchor rod hauling-off device used for clamping and loosening the anchor rod. The front-arranged beam and the rear-arranged beam are connected with two hydraulic telescopic oil cylinder supporting columns. Holes are formed in the middle of the front-arranged beam and the middle of the rear-arranged beam and used for penetrating the anchor rod. The front-arranged beam is attached to a tray of the anchor rod and supports in a counter-force mode, and drawing force is provided for the anchor rod through the two hydraulic telescopic oil cylinder supporting columns. The rear-arranged beam is matched with the anchor rod hauling-off device. The middle of the rear-arranged beam is matched with the anchor rod hauling-off device, a pneumatic oil pressure pump drives the ...

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02-09-2015 дата публикации

Anchor cable support method for deep soft rock roadway without stable rock stratum

Номер: CN104879150A
Принадлежит:

The invention relates to an anchor cable support method for a deep soft rock roadway without stable rock stratum. The method comprises the following steps: (1), shotcrete-bolt support is performed on the surface layer of the rock stratum, rheology of surrounding rock is controlled, and anchor cable support is adopted on the basis; (2), anchor cables go deep in the rock stratum more than 4 m for anchoring; (3), enlarged bolt plates are adopted, long anchor bolts are adopted to reinforce weak parts after shotcrete-bolt, and damaged parts are reinforced with knocking and shot blasting measures. The anchor cable support method for the deep soft rock roadway without the stable rock stratum has the advantages as follows: through joint application of reinforcement support by the anchor cables, shotcrete-bolt anchor beams and the anchor bolts, problems in a support process are solved, anchor cable support of the deep soft rock roadway without the stable rock stratum is realized, U-shaped steel ...

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02-09-2015 дата публикации

Method for detecting and evaluating reinforcing effect on weak surrounding rock grouting during underground construction

Номер: CN104880544A
Принадлежит:

The invention discloses a method for detecting and evaluating the reinforcing effect on the weak surrounding rock grouting during the underground construction, which mainly comprises the sigma-D curve method, the surrounding rock consolidation mean standard-reaching value calculation method, the grouting reinforcement effect standard-reaching rate calculation method and the grouting reinforcement effect index coefficient calculation method, accompanied by the borehole television and geological radar combined imaging observation method. The dependant data of the method are comprehensive and reliable. In this way, not only the visual qualitative analysis on the grout diffusion and rock-stratum strengthening condition of weak surrounding rocks can be realized through a borehole television and a geological radar, but also the reinforcing levels of all surrounding rocks of different depths can be quantitatively obtained through the grouting reinforcement effect index coefficient calculation ...

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05-08-2015 дата публикации

Method for assembling confined concrete arch frames

Номер: CN104818995A
Принадлежит:

The invention discloses a method for assembling confined concrete arch frames. The method comprises the following steps that a traction device capable of enabling arch legs to be erected is arranged in front of the designed position; a lifting device is used for lifting the arch legs of the arch frames; the arch legs are mounted through the traction device; a quantitative crushing device is mounted on the connecting cross section of the arch legs and arch chords of the arch frames so as to achieve quantitative crushing of the arch frames; casing pipes connected with the arch legs and the arch chords and the arch chord are mounted through the lifting device; protection plates are arranged on arching points and bottom feet of the arch legs of the arch frames; and pull rods are mounted on arch shoulders and the arch legs of the arch frames, and adjacent arch frames are connected together. Two confined concrete arch frames can be assembled at one time, the construction efficiency is improved ...

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12-08-2015 дата публикации

High-stress soft rock roadway supporting system with metal mesh backplane and construction method

Номер: CN104832187A
Принадлежит:

The invention discloses a high-stress soft rock roadway supporting system with a metal mesh backplane and a construction method. The system sequentially comprises the metal mesh backplane, a confined concrete arch, a filling material blocking cloth, a backwall filling material and a bolt-mesh-spurting support from inside to outside, wherein the metal mesh backplane is located below the confined concrete arch; the metal mesh backplane is connected with the filling material blocking cloth; and the outer edge of the confined concrete arch is connected with the bolt of the bolt-mesh-spurting support via a pre-stressed steel strand. The high-stress soft rock roadway supporting system with the metal mesh backplane has the beneficial effects that the metal mesh backplane is located at the lower side of the arch, thereby reducing the material use amount of the metal mesh backplane; the position of the metal mesh backplane changes, the arch is directly contacted with the filled concrete material ...

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17-12-2014 дата публикации

Comprehensive quantitative determination method for grouting reinforcement effect of underground engineering crushed surrounding rocks

Номер: CN104215748A
Принадлежит:

The invention discloses a comprehensive quantitative determination method for grouting reinforcement effect of underground engineering crushed surrounding rocks. The method is based on four technological detection meanings, and the four meanings comprise surrounding rock boring coring, detection by a ground penetrating radar, borehole inspection detection and in-situ strength detection on bored surrounding rock. By using the four detection meanings for respective statistics and analysis, the surrounding-rock boring coring enhancement rate, the damage area reinforcing enhancement rate, the crack closing enhancement rate, the strength parameter enhancement rate and other parameters before or after grouting are obtained. The grouting reinforcement effect is subjected to comprehensive quantitative analysis through a weight analysis method, and a quantitative evaluation index for the grouting reinforcement effect is established, and scientific reasonable evaluation is performed on the grouting ...

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26-08-2015 дата публикации

Method for judging geological layer where drill of drilling machine where drill of drilling machine drilling for certain depth is positioned

Номер: CN104863576A
Принадлежит:

The invention discloses a method for judging the geological layer where the drill of a drilling machine drilling for a certain depth is positioned. The method comprises the following steps: 1), obtaining the rock formation density of a target rock formation, P wave velocity and Poisson's ratio Mu, so as to obtain the elastic modulus of the target rock formation through calculation; 2), comparing the elastic modulus of the target rock formation with data in a computer database, so as to obtain the type of the rock formation through analytical judgment; 3), recording the depth when the elastic modulus of the rock formation and the original value of the elastic modulus of the rock formation change suddenly, wherein the depth is the interface depth of the rock formation; 4), repeating the steps (1, 2 and 3), so as to obtain the geological layers where the drill of the drilling machine drilling for different depths are positioned. The method has the advantages that physical properties and mechanical ...

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19-02-2014 дата публикации

Full-thread anchor rod pre-tightening force exerting device capable of achieving automatic anchor unloading and operation method

Номер: CN103590842A
Принадлежит:

The invention discloses a full-thread anchor rod pre-tightening force exerting device capable of achieving automatic anchor unloading and an operation method. The full-thread anchor rod pre-tightening force exerting device comprises a front transverse beam, a rear transverse beam and an anchor unloading device for clamping and releasing an anchor rod, the front transverse beam and the rear transverse beam are respectively connected with two hydraulic telescopic oil cylinder supporting columns, the middle of the front transverse beam is provided with a cone-shaped nut, and the end portion of the cone-shaped nut is provided with a sleeve which is movably matched with the anchor unloading device; the front transverse beam is attached to a tray of the anchor rod; the rear transverse beam is matched with the anchor unloading device; the middle of the rear transverse beam is matched with the anchor unloading device, the telescopic oil cylinder supporting columns are driven by a pneumatic oil ...

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