摘要
为了保证新建地下工程的安全稳定,往往需要对潜在断裂带的稳定性进行评价。文中通过对三个地区浅部岩层27组水压致裂法地应力数据的统计回归分析,并采用基于库伦摩擦准则的"斜率法"和"平行界限法"两种方法进行评价和对比。通过对浅部岩层动摩擦系数的统计数据,对逆断层和走滑断层判别时分别选取0.6～1.0和0.4～0.6,有效地评价了所选样本的断层稳定状态。
In order to ensure the safety and stability of new underground projects, it was often necessary to evaluate the stability of the potential fault zones. Through statistical regression analysis of 27 sets of in-situ stress data of hydraulic fracturing method for shallow rock strata in three areas, and the evaluation and the comparison were carried out using "slope method" and "parallel boundary method" based on Coulomb friction criterion. Based on the statistical data of dynamic friction coefficients of shallow strata, 0.6-1.0 and 0.4-0.6 were selected to distinguish reverse faults from strike-slip faults, respectively, and the fault stability of selected samples was effectively evaluated.
作者
杨平庆
周志
季京晨
王长柏
Yang Pingqing;Zhou Zhi;Ji Jingchen;Wang Changbo(School of Civil Engineering, Anhui University of Science and Technology, Huainan 232001, China;Jiangsu Transportation Research Institute Co., Ltd., Nanjing 210000, China)
出处
《矿山测量》
2019年第2期1-5,共5页
Mine Surveying
基金
贵州省交通运输厅科技项目(2016121032)
关键词
浅部岩层
地应力场
断层稳定
水压致裂法
库伦摩擦准则
shallow rock stratum
crustal stress field
fault stability
hydraulic fracturing method
coulomb friction criterion
