China University of Mining and Technology

Jiangsu Sobute New Materials Co., Ltd.

Jiangsu Research Institute of Building Science Co. Ltd

Hunan Xiangyi Laboratory Instrument Development Co., Ltd.

Yunlong Lake Laboratory of Deep Earth Science and Engineering

Jinneng Holding Coal Industry Group Shuozhou Coal and Electricity Co., Ltd.

Qian Yin

Hongwen Jing

Bo Meng

Jiangyu Wu

Dan Ma

Hao Zhang

Hai Pu

Qingbin Meng

Wen Xu

Gaofang Zhu

Shuo Yang

Qiang Zhang

Liyuan Yu

Zhanguo Ma

Zhenhua Li

Zhengfu Bian

Jinpeng Dai

Haixiang Zhang

Yurong Wu

Yiming Wang

Weiqiang Chen

Jihuai Wen

Zengjie Tian

Dajiang Liu

Xiaozhao Li

Zheng Jiang

Jiyu Wang

Tianci Deng

Yanjun Qi

Fangtao Hu

Bangguo Jia

A sealing structure of an underground high-pressure gas storage and a construction method thereof are provided. The sealing structure includes an annular lining structure, wherein the annular lining structure is surrounded by a plurality of concrete segments; closed steel sheets; the closed steel sheets are arranged at an inner side of the annular lining structure and used for connecting two adjacent concrete segments and plugging a gap between two adjacent concrete segments; and a sealing layer, wherein the sealing layer is arranged close to the inner side of the annular lining structure and forms a coating with the annular lining structure on the closed steel sheets.

Sealing structure of underground high-pressure gas storage and construction method thereof

The application discloses a system and method for centrifugal intrusion of molten metal into porous media and then solidification positioning, including: test cups, used for placing test medium and molten metal intrusion; a rotor block, used for mounting the test cups, where one end of each test cup for placing the test medium is far away from the rotor block; a constant temperature oil bath preheating device, used for preheating the test cups and the rotor block; a centrifugal device, internally provided with the rotor block, used for performing a centrifugal operation on the test cups, where the test cups and the rotor block are installed inside the centrifugal device after being preheated; and an infrared heating and compression refrigerating device, arranged inside the centrifugal device, used for controlling a temperature of the test cups.

System and method for centrifugal intrusion of molten metal into porous media and then solidification positioning

The present disclosure provides a cemented filling material with bionic structure, a preparation method and an application thereof, and belongs to the field of structural modification methods of cemented filling materials and research and development of civil materials with ultra-high energy absorption characteristics. The cemented filling material with bionic structure includes a bionic honeycomb skeleton and cemented filling slurry, where the cemented filling slurry is poured in the bionic honeycomb skeleton.

Cemented filling material with bionic structure and preparation method and application thereof

A method and a system for simulating contact and interaction between a support member and a chamber surrounding rock mass are provided in the application. The method includes: obtaining a support scheme of a roadway to be simulated, dividing the roadway to be simulated based on the support scheme to obtain several roadway sections; obtaining physical and mechanical parameters of each rock stratum in each roadway section and an occurrence state of the roadway surrounding rock; constructing particle flow numerical models corresponding to the roadway section; through the particle flow numerical models of every two adjacent roadway sections, obtaining a particle flow meso-structural evolution model of the roadway to be simulated; obtaining meso-mechanical parameters of the roadway to be simulated based on the particle flow numerical models, calibrating the meso-mechanical parameters through the physical and mechanical parameters, establishing the particle flow meso-structural evolution model of the roadway to be simulated.

Method and system for simulating contact and interaction between support member and chamber surrounding rock mass

Disclosed are a grouting material for modifying mudstone, a preparation method and an application thereof, belonging to the technical field of material science and geotechnical engineering. The grouting material for modifying mudstone includes the following raw materials: cement, water, superfine micronized powder, water reducer, silane, fiber, diatomite, urea-formaldehyde resin and waterborne polyurethane. The preparation method of the grouting material for modifying mudstone includes steps of: (1) weighing the raw materials in parts by weight, mixing water of 40% of a total amount of water with water reducer, superfine micronized powder, fiber and diatomite, stirring to obtain a material A; (2) adding silane, urea-formaldehyde resin, waterborne polyurethane and residual water into the material A, obtaining a material B after continuous stirring; and (3) adding cement into the material B, and uniformly stirring to obtain the grouting material for modifying mudstone.

Grouting material for modifying mudstone, preparation method and application thereof

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Xuzhou, China

Qian Yin