China University of Mining and Technology

Liaoning University

Liaoning Technical University

Liyuan Yu

Wei Li

Tao Zhang

Anye Cao

Hongwen Jing

Qian Yin

Dan Ma

Jiangyu Wu

Hai Pu

Chao Wei

Rui Sun

Shuo Yang

Zhengfu Bian

Haijian Su

Shuchen Li

Haixiang Zhang

Xianzhen Mi

Bowen Hu

Minghe Ju

Lianpeng Dai

Yiming Wang

Xuwei Li

Dejun Liu

A test device and a test method for impact resistance of an anchor body are provided. The test device includes a workbench and a load-receiving steel frame. A support component is provided on the workbench, one end of the load-receiving steel frame is provided with a force-receiving plate, and the other end is provided with a tray. The tray is provided with an anchor rod located in the load-receiving steel frame. A steel pipe sleeved outside the anchor rod is movably provided in the load-receiving steel frame, and an end of the steel pipe is provided with a fixed rod passing through the tray. The fixed rod is movably connected to the tray, an end of the fixed rod is provided with a fixed base, the fixed rod is fixedly connected to the fixed base, and a buffering component is provided on the workbench.

Test device and test method for impact resistance of anchor body

The disclosure belongs to the field of underground energy storage, and particularly provides a large-deformation underground energy storage device, including a body. The body includes a rubber sealing layer, a negative Poisson's ratio material layer, a large deformation concrete layer and rock layers sequentially nested from inside to outside; an internal storage space is formed in the rubber sealing layer, the negative Poisson's ratio material layer includes a plurality of negative Poisson's ratio material elements connected in sequence, and the large deformation concrete layer is cast from deformable concrete.

Large deformation underground energy storage device

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

Liyuan Yu