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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 5. Отображено 5.
23-06-2023 дата публикации

Method for rapidly determining macroscopic strength parameters of layered rock mass

Номер: CN116305811A
Автор: GAO YANG, ZHANG CHUANQING, HU MINGMING, ZHOU HUI, HU DAWEI, YANG FANJIE, LU JINGJING
Принадлежит:

The invention discloses a method for rapidly determining macroscopic strength parameters of stratified rock mass, which comprises the following steps for the stratified rock mass without intermittent joint fissures: S1, carrying out a conventional uniaxial/triaxial compression test on a matrix rock mass to obtain a stress-strain curve of the matrix rock mass, and fitting peak strength and residual strength of the matrix rock mass under different confining pressures to obtain a stress-strain curve of the matrix rock mass; obtaining a strength parameter of the matrix rock block; s2, carrying out a shear test on the stratification-containing sample to obtain a stress-strain curve of the stratification structural plane, and fitting peak strength and residual strength of the stratification structural plane under different normal stresses to obtain strength parameters of the stratification structural plane; s3, the average value of the peak strength of the matrix rock and the peak strength of ...

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Номер записи: 1
28-04-2023 дата публикации

Multi-time one-way impact load test simulation device and method under gradient confining pressure

Номер: CN116026707A
Автор: YANG FANJIE, CHEN HONGJIE, YANG LI, ZHOU HUI, TANG RONGPING, TAN YULAN, XU CONGYUN, LI HAN, SUN BOWEN, LIU XIAOYAN
Принадлежит:

The invention discloses a multi-time one-way impact load test simulation device and method under gradient confining pressure, the device comprises a track, a sample and a plurality of impact objects, the track comprises a horizontal section, and one end of the horizontal section is connected with a slope section; the sample is positioned on the horizontal section, and a gradient confining pressure device is arranged outside the sample to pressurize the sample; a plurality of impact objects serve as power input sources to be released from the positions, away from the ground by different heights, of the slope section, move along the track and sequentially impact the sample so as to apply one-way impact loads to the sample for multiple times; wherein the plurality of impact objects can be sequentially nested, so that the impact object which is subsequently impacted with the sample can cross the impact object which is firstly impacted with the sample, and the impact objects are prevented from ...

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Номер записи: 2
28-04-2023 дата публикации

Rail mechanical regulation and control system based on gear and rack transmission under fault movement

Номер: CN116024850A
Автор: ZHOU HUI, TU HONGLIANG, HU MINGMING, GAO YANG, LU JINGJING, ZHANG CHUANQING, HU DAWEI, YANG FANJIE, LIU WENBO, CHO SUNG-WE
Принадлежит:

The invention provides a rail mechanical regulation and control system based on gear and rack transmission under fault dislocation, through the system, after fault dislocation occurs, tunnel deformation and lining dislocation are caused, a roadbed is driven to move, and by taking a lining which is not influenced by dislocation outside a fault dislocation belt as a reference (a fixed lining), the rail mechanical regulation and control system based on gear and rack transmission under fault dislocation is achieved. On one hand, the bevel gear is driven to rotate, so that the lead screw rotates, and dislocation compensation (equal to dislocation displacement) of the track plate is achieved; and on the other hand, by setting a specific transmission ratio, the absolute displacement of the rack is not changed, and the absolute displacement is used as the reference of the next lining, so that it is guaranteed that the track plate is finally recovered to the initial position and the relative position ...

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Номер записи: 3
23-06-2023 дата публикации

Hot dry rock fracturing method based on supercritical carbon dioxide

Номер: CN116291441A
Автор: HU DAWEI, YANG YANG, WANG GUILING, ZHOU HUI, ZHANG CHUANQING, YANG FUJIAN, LU JINGJING, YANG FANJIE, GAO YANG, DONG WENBAO
Принадлежит:

The invention discloses a hot dry rock fracturing method based on supercritical carbon dioxide. The hot dry rock fracturing method comprises the steps that S1, an injection well extending into a hot dry rock reservoir is drilled in the ground; s2, supercritical carbon dioxide is pumped from the injection well to conduct primary fracturing on the hot dry rock; s3, a sand-carrying agent carrying a proppant is pumped from the injection well to promote extension of the crack, secondary fracturing of the hot dry rock is achieved, and the proppant is diffused and filled into the crack to support the crack; s4, a production well is drilled in the far-end position where the crack expands, and the production well and the injection well are communicated through the crack to form a heat collection channel; s5, after the proppant expands the crack, a displacement liquid is pumped from the injection well to discharge the proppant and the sand-carrying agent in the shaft and the crack; according to the ...

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Номер записи: 4
04-04-2023 дата публикации

High-ground-temperature tunnel heat insulation pipe piece and preparation method thereof

Номер: CN115898466A
Автор: ZHU YONG, LIU ZHONGBO, CHEN HONGJIE, YANG LI, YANG YANG, ZHOU HUI, XU CONGYUN, ZHANG XIPING, XIAO XINGJUN, YANG FANJIE
Принадлежит:

The invention provides a high-ground-temperature tunnel heat insulation pipe piece and a preparation method thereof. The high-ground-temperature tunnel heat insulation pipe piece comprises a concrete layer, a steel reinforcement framework and a plurality of triangular insertion type heat insulation cylinders. The steel reinforcement framework is of a truss structure and comprises a plurality of main reinforcements, a plurality of double-limb stirrups and a plurality of steel reinforcements with angles. The main reinforcements are arranged at intervals in the width direction of the duct piece, the double-limb stirrups are arranged at intervals in the annular direction of the duct piece, and each double-limb stirrup is fixed to the outer portion of the corresponding main reinforcement; a plurality of steel bars which are adjacently distributed in the annular direction of the pipe piece are arranged in each main bar; and each triangular insertion type heat insulation barrel is inserted into ...

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Номер записи: 5