Distribution Law of In Situ Stress and Its Engineering Application in Gateroad Maintenance: A Case Study
Distribution Law of In Situ Stress and Its Engineering Application in Gateroad Maintenance: A Case Study
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地应力分布规律及其在公路养护中的工程应用：以实例分析
DOI：
10.1155/2022/2951634
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发表时间：
2022-03
期刊：
影响因子：
1.7
通讯作者：
Hao Zuo
中科院分区：
文献类型：
--
作者：
Guangchao Zhang;You Li;Guangzhe Tao;Miao Chen;Ruihua Xu;Hanqing Guo;Devkota Bidit;Guanglei Zhou;Zhi Qu;Hao Zuo
采用空心包体应力解除法和数理统计分析法研究郭屯煤矿地应力分布规律，提出巷道支护优化策略。试验地点位于中国山东省菏泽市。主要结论如下：（1）在郭屯煤矿所经历的三次大规模构造运动中，燕山中期对郭屯煤矿的影响最大，根据地质演化过程，初步推断郭屯煤矿的最大主应力方向为西北偏西-东南偏东（NWW-SEE）。(2)与周边矿井相比，郭屯煤矿最大主应力平均值略高，地应力方向存在明显差异。矿内弧形构造是造成应力方向偏转的主要原因。(3)侧压力系数KH、Kh和Kav随深度的增加呈非线性分布，且均呈减小趋势。郭屯煤矿的应力梯度值与周围矿井相比较大。(4)现场试验表明，该研究提出的新策略是有效的，为类似地质条件下的工程实践提供了很好的借鉴。
In this study, the stress relief method of hollow inclusion and mathematical-statistical analysis are used to study the in situ stress distribution law of the Guotun coal mine, and the optimization strategy of roadway support is put forward. The test site is located in the city of Heze, Shandong Province, China. The main conclusions included the following: (1) among the three large-scale tectonic movements experienced by the Guotun coal mine, the middle Yanshan period has the strongest impact on it. According to the geological evolution process, it is preliminarily inferred that the maximum principal stress direction of the Guotun coal mine is northwest by west to southeast by east (NWW∼SEE). (2) Compared with the surrounding mines, the average value of the maximum principal stress in the Guotun coal mine is slightly higher, and there is a significant difference in the direction of in situ stress. The arc structure within the mine is the main reason for the deflection of the stress direction. (3) The lateral pressure coefficients KH, Kh, and Kav show a nonlinear distribution with increased depth, and the three coefficients have a decreasing trend. The value of the stress gradient in the Guotun coal mine is greater when it is compared with the surrounding mines. (4) Field tests show that the new strategy proposed in this study is effective, which provides a good reference for engineering practice under similar geological conditions.
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影响因子：
4
作者：
Chen Jianhang;Liu Peng;Zhao Hongbao;Zhang Cun;Zhang Junwen
通讯作者：
Zhang Junwen
DOI：
10.7474/tus.2013.23.6.457
发表时间：
2013-12
期刊：
Journal of Korean Society for Rock Mechanics
影响因子：
--
作者：
J. Synn;C. Park;Byung-Joo Lee
通讯作者：
J. Synn;C. Park;Byung-Joo Lee
具有三线性本构关系的全封装岩石锚杆的数值模拟
影响因子：
6.9
作者：
Chen Jianhang;Li Danqi
通讯作者：
Li Danqi
影响因子：
5.3
作者：
G. Zhou;Tao Xu;M. Heap;P. Meredith;T. Mitchell;Ashley Stanton-Yonge Sesnic;Yang Yuan
通讯作者：
G. Zhou;Tao Xu;M. Heap;P. Meredith;T. Mitchell;Ashley Stanton-Yonge Sesnic;Yang Yuan
影响因子：
1.5
作者：
Huang Lu-yua
通讯作者：
Huang Lu-yua