Experimental study of improved cement silicate grouting material for broken surrounding rock

T Li, Z Yue, J Li, Q Li, Y Li, G Chen - Journal of Building Engineering, 2023‏ - Elsevier
The broken surrounding rock seriously affects the safety production of coal mines. This
paper design the orthogonal experiment of fly ash-cement-silicate grouting material and the …

Research on theory and technology of floor heave control in semicoal rock roadway: Taking longhu coal mine in Qitaihe mining area as an Example

X Zhou, S Wang, X Li, J Meng, Z Li, L Zhang… - …, 2022‏ - pubs.geoscienceworld.org
As one of the most common disasters in deep mine roadway, floor heave has caused
serious obstacles to mine transportation and normal production activities. The third section …

Velocity tomography of cross-sectional damage evolution along rock longitudinal direction under uniaxial loading

Q Zheng, J Qian, H Zhang, Y Chen, S Zhang - Tunnelling and Underground …, 2024‏ - Elsevier
Rock pillars in rock engineering are affected by the stress concentration, which is uneven
and can lead to potential instability after loading disturbance. In this paper, considering the …

Analysis of mining roadway with large deformation of broken soft coal and research on supporting technology: A case study in **n'an coal mine, China

J Hao, X Li, Y Song, P Zhang, H Liu - Engineering Failure Analysis, 2021‏ - Elsevier
The safe mining of **n'an Coal Mine was challenging because of several problems,
including the soft roadway seams, fracture development, fracturing and deformation of the …

Study on failure mechanism and treatment measures of floor heave of high-speed railway tunnel in the interbedded surrounding rock with high geostress

J Feng, L Gong, L Wang, P Zhou, P Zhang, Y Li… - Engineering Failure …, 2023‏ - Elsevier
The tunnel floor heave is easy to occur in the interbedded surrounding rock with high
geostress, which has a serious impact on the safety of the tunnel structure and the normal …

Study on deformation mechanism and control technology of surrounding rock during reuse of gob side entry retaining by roof pre-splitting

F He, X Xu, B Qin, L Li, K Lv, X Li - Engineering Failure Analysis, 2022‏ - Elsevier
In this study, we aiming at the problems of severe surrounding rock deformation and support
failure during the reuse of gob side entry retaining, we conducted field observations …

Non-orthogonal failure behavior of roadway surrounding rock subjected to deep complicated stress

Z Ma, J Zuo, F Zhu, H Liu, C Xu - Rock Mechanics and Rock Engineering, 2023‏ - Springer
Based on the characteristics of real stress distribution in coal mining, the evolution law of
plastic zone shape and spatial position were investigated. The stress model of roadway with …

Asymmetric deformation and failure behavior of roadway subjected to different principal stress based on biaxial tests

J Zuo, Z Ma - Tunnelling and Underground Space Technology, 2025‏ - Elsevier
The magnitude and direction of stress will affect the failure of roadway. The impact of stress
magnitude and direction on roadway failure was investigated using a rock failure system …

Floor heave control in gob-side entry retaining by pillarless coal mining with anti-shear pile technology

I Sakhno, S Sakhno, K Skrzypkowski, O Isaienkov… - Applied Sciences, 2024‏ - mdpi.com
The severe floor heave in gob-side entry retaining is the major restriction factor of the wide
application of pillarless mining thin coal seams. Reinforcement and stress-relief floor heave …

Development of a three-dimensional stress monitoring system for coal rock and its application in a mine

R Shen, Z Hou, Z Yuan, Y Li, Y Gu - Rock Mechanics and Rock …, 2024‏ - Springer
To conduct directed tests on the multi-dimensional stresses of coal rock mass and their
evolution law, a three-dimensional stress (3DS) monitoring system is developed in this …