Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 6. Отображено 6.
27-02-2013 дата публикации

Shear box applicable to rock joint shearing, seepage and coupling tests and test method

Номер: CN102944665A
Автор: Rong Guan, Hou Di, Wang Xiaojiang, Zhou Chuangbing, Chen Yifeng
Принадлежит:

The invention relates to a shear box applicable to rock joint shearing, seepage and coupling tests and a test method. By the aid of the test box, water can be sealed strictly during shearing, and stable seepage water streams can be formed among joints. The shearing box is mainly composed of a bottom plate, a side plate, a lateral water sealing bag and a water inlet and outlet device. The shear box is characterized by the design of the lateral sealing bag and the method of water injection at the front end and water accumulation at the rear end. By the aid of the rock joint shearing, seepage and coupling test box, the shearing displacement within 20mm can be achieved, the seepage characteristic variation caused by dilation and contraction during rock joint shearing can be studied fully, a water head of 0.05-3.0MPa can be provided to provide conditions for studying the influence of water pressure on joint seepage fully, a minitype servo water pump is used for injecting water, stable water ...

Подробнее
Номер записи: 1
21-11-2012 дата публикации

Side slope outlining blasting method for greening

Номер: CN102788539A
Автор: Lu Wenbo, Yan Peng, Chen Ming, Li Tao, Jiang Qinghui, Chen Yifeng, Zhou Chuangbing
Принадлежит:

The invention relates to a side slope outlining blasting method for greening. Aiming at the defects of the conventional rocky slope greening technology such as a slope surface needs flattening and grooving, steel bars needs planting or concrete lattices needs building, the slope plant is hard to durably survive, the integration degree between a surface nutritious soil layer and the slope surface is not enough and the like, the side slope greening is considered at the blasting and excavating stage of the slide slope. On the premise that the whole stability of the side slope is not influenced, the columnar interval charge structure of the conventional outlining blasting is changed into the stringy concentric charge structure, so that the radial coefficient of not coupling is properly reduced, the thread charge intensity of the conventional presplit blasting and the unit powder consumption of the conventional smooth surface blasting are improved, and a side slope outlining blasting technology ...

Подробнее
Номер записи: 2
20-02-2013 дата публикации

Stress relief blasting method based on ground stress transient release

Номер: CN102937399A
Автор: Yan Peng, Lu Wenbo, Li Gong, Chen Ming, Zhou Chuangbing, Jiang Qinghui
Принадлежит:

The invention discloses a stress relief blasting method based on ground stress transient release. According to the method, arrangement of stress relief blast holes and design of an explosion initiation network are performed according to the shape of the cross section of a tunnel and directions and sizes of initial ground stress in an engineering area, strain energy stored in a deep rock mass is fully utilized to further damage surrounding rock while a blast load is utilized to damage the surrounding rock, so that on the premises of the same explosive consumption quantity, an arc-shaped blasting loosening area with a range large as far as possible is generated, the energy release rate of the surrounding rock is increased, and optimum effects for controlling rockburst are achieved. The stress relief blasting method can be widely applied to stress relief blasting construction of the deeply buried tunnel in the fields of mines, water conservancy and hydropower and traffic and the like on the ...

Подробнее
Номер записи: 3
20-02-2013 дата публикации

Rockburst active control method based on blasting excavation disturbance control

Номер: CN102937398A
Автор: Yan Peng, Lu Wenbo, Li Tao, Chen Ming, Zhou Chuangbing, Jiang Qinghui
Принадлежит:

The invention discloses a rockburst active control method based on blasting excavation disturbance control. The rockburst active control method aims at overcoming the shortcoming that only blast load induction disturbance is considered in traditional blasting disturbance control, the rock mass strain energy release amount caused by single-section blasting is reduced by changing blasthole arrangement and an explosion initiation network, so that the goal of weakening overall release rate of rock mass strain energy is achieved on the basis of controlling blast load induction disturbance to achieve control of deep rock mass excavation disturbance, and active control of rockburst is achieved finally. The rockburst active control method is suitable for blasting excavation construction of deeply buried underground engineering in the fields of hydraulic and hydro-power engineering, traffic and mines and the like.

Подробнее
Номер записи: 4
09-10-2013 дата публикации

Triaxial compression-water (gas) coupling apparatus and test method for rock

Номер: CN103344496A
Автор: Chen Yifeng, Hu Shaohua, Wei Kai, Hu Ran, Zhou Chuangbing
Принадлежит:

The invention relates to a triaxial compression-water (gas) coupling apparatus and test method for a rock. The apparatus provided by the invention comprises an axial compression servo system, a confining pressure servo system, a water (gas) pressure servo system, a data acquisition system and a data processing system and can carry out stress-seepage coupling test under the conditions of hydrostatic compression, triaxial compression and cyclic loading and unloading. The data acquisition system is used for real-time measurement and recording of current confining pressure and eccentric compression values, axial, circumferential and volumetric strain values and inlet and outlet pressure values of a rock sample; the data processing system accordingly drafts a stress-strain curve, an inlet and outlet pressure-time travel curve and a sample deformation-pore water (gas) pressure curve, then automatically calculates permeability, porosity and axial and lateral Biot coefficients of the rock sample ...

Подробнее
Номер записи: 5
14-08-2013 дата публикации

Device and method for measuring instantaneous pneumatic pulse permeability of low-permeability rock

Номер: CN103245597A
Автор: Chen Yifeng, Hu Shaohua, Wei Kai, Hu Ran, Zhou Chuangbing
Принадлежит:

The invention relates to a device and method for measuring instantaneous pneumatic pulse permeability of low-permeability rock. The device comprises a confining pressure servo system, a pneumatic servo system and a data acquisition and processing system, wherein the confining pressure servo system can apply 0 to 60MPa of confining pressure to the lateral side of a low-permeability rock sample; the pneumatic servo system consists of an air injection system and an air permeating system; the air injection system can provide 0.1 to 10MPa of high-purity nitrogen; the air permeating system can conduct air permeation tests of two different ranges on a pipeline loop and a steel cylinder loop; and the data acquisition and processing system can real-timely acquire pressure of the rock sample at an inlet and outlet loops, and can be used for drawing a pressure-time curve of the inlet and outlet loops, automatically calculating the permeability of the rock sample, storing and displaying the result.

Подробнее
Номер записи: 6