Results 21 to 30 of about 2,917 (264)

Application research on Offset Tracking technology in monitoring oflarge surface deformation in coal mine subsidence area

Gong-kuang zidonghua, 2017
In view of problems of long monitoring cycle, low accuracy of extracted deformation quantity of surface shape existed in traditional coal mining subsidence monitoring methods, Offset Tracking technology was applied to monitoring of large deformation of ...
CHEN Shun, ZHENG Nanshan, QI Yun, BAN Meng   +3 more
doaj   +1 more source

Prediction and analysis of mining subsidence in Longdong Coal Mine

Gong-kuang zidonghua, 2013
In order to predict and analyze mining subsidence in Longdong Coal Mine, prediction model of main cross section mining subsidence was established by use of probability integration method, and distribution law of surface subsidence deformation of main ...
XUE Ming-ke, WANG Yu-song, WANG Ju
doaj   +1 more source

Study on mechanism and response of fracture and movement of the far-field high-position hard-and-hick stratum

Meitan kexue jishu, 2023
Mastering fracture and movement of far-field high-position hard-and-thick strata plays an important role in safety prevention and control of disasters including severe surface subsidence and strong mine seismic events.
Guangchao ZHANG, Zhi QU, Xiangjun MENG, Junpeng MA, Chao WANG, Lei WANG, Zhiyong LI, Dong WANG, Guanglei ZHOU   +8 more
doaj   +1 more source

Research on surface deformation law of closed mines based on SBAS-InSAR

Gong-kuang zidonghua, 2021
After the mine is closed, the coal and rock mass undergoes weathering degradation and strength reduction under the action of various factors such as stress, groundwater and oxygen.
YU Hao, CHEN Bingqian, KANG Jianrong, MEI Han   +3 more
doaj   +1 more source

Ground deformation monitoring of open-pit coal mine based on SBAS-InSAR and offset tracking techniques

Meikuang Anquan, 2022
Using SBAS-InSAR based on StaMPS and taking Antaibao Open-pit Coal Mine as research area, this paper carries out time series interferometry processing on 33 sentinel ascending and descending images, extracts ground deformation information of open pit ...
SUN Jun, ZHANG Jin
doaj   +1 more source

Prediction of mining-induced subsidence at Barapukuria longwall coal mine, Bangladesh

Scientific Reports, 2022
It is essential to predict the mining-induced subsidence for sustainable mine management. The maximum observed subsidence having a noticeable areal extent due to Northern Upper Panels (NUP) and Southern Lower Panels (SLP) at the Barapukuria longwall coal
A. K. M. Badrul Alam, Yoshiaki Fujii, Shaolin Jahan Eidee, Sophea Boeut, Afikah Binti Rahim   +4 more
doaj   +1 more source

Preparation and microstructure analysis of alkali-activated ground granulated blast furnace slag-steel slag grouting materials

Case Studies in Construction Materials
To solve the problems of large storage requirements for iron and steel solid waste piles, environmental pollution, and low utilization, an alkali-activated ground granulated blast furnace slag (GGBFS)-steel slag (SS) grouting material (AAGM) was prepared,
Botao Li, Qi Sun, Xiaoxiao Chen, Ziming Xu, Liang Yang   +4 more
doaj   +1 more source

Degradation mechanism and life prediction of cemented tailings backfill under dry–wet cycles and salt erosion

Case Studies in Construction Materials
In this paper, the effects of drywet cycling and salt erosion on the unconfined compressive strength (UCS), relative dynamic elastic modulus and mass of cemented tailings backfill (CTB) were investigated, and the mechanism for CTB deterioration was ...
Zhuoran Liu, Botao Li, Qi Sun, Liang Yang, Fei E   +4 more
doaj   +1 more source

A Case Study on Ground Subsidence and Backfill Deformation Induced by Multi-Stage Filling Mining in a Steeply Inclined Ore Body

Remote Sensing, 2022
The backfill mining method transports treated tailings to the mined-out area, which not only improves the surrounding environment of the mine but also enables the mined-out area to continue mining and production under the support of the filling body ...
Guang Li, Yang Wan, Jie Guo, Fengshan Ma, Haijun Zhao, Zhiqing Li   +5 more
doaj   +1 more source

Quantifying relationships between subsidence and longwall face advance using DInSAR

International Journal of Mining Science and Technology, 2021
Surface subsidence that results from longwall mining can be large magnitude and can affect significant areas. Conventional methods for subsidence monitoring include leveling, global positioning system (GPS), and photogrammetric surveys.
Bailey S. Simmons, Jessica M. Wempen
doaj   +1 more source