基于空心包体应变法的口孜东矿地应力测量  

Measurement of Geostress in Kouzidong Mine Based on Hollow Envelope Strain Method

作　　者：郭书鹏 李迎富[1] GUO Shupeng;LI Yingfu

机构地区：[1]安徽理工大学矿业工程学院,安徽淮南232001

出　　处：《山西焦煤科技》2024年第8期18-21,共4页Shanxi Coking Coal Science & Technology

摘　　要：为了解口孜东煤矿1111采区地应力分布规律,在1111采区胶带机大巷等3个位置进行了地应力测试,测试位置埋深为-855~-885 m,钻孔应力解除测试结果表明:最大主应力σ_(1)为水平地应力,方向为NE92.0°~NE189°,大小25.1~29.3 MPa,水平应力与竖直应力比为1.13~1.38.得到地应力分布规律:水平应力为最大主应力、中间主应力,垂直应力为最小主应力。该规律为1111采区巷道布置和巷道支护设计提供了基础地质资料。In order to understand the distribution law of geostress in the 1111 mining area of Kouzidong Coal Mine,geostress tests were conducted at three locations including the belt conveyor roadway in the 1111 mining area,and the depth of the test position was-855~-885 m.The results of the borehole stress relief test showed that the maximum principal stress σ 1 was the horizontal geostress,with the direction of NE92.0°~NE189° and the magnitude of 25.1~29.3 MPa,and the ratio of horizontal stress to vertical stress was 1.13~1.38.Obtain the distribution pattern of geostress:horizontal stress is the maximum principal stress,intermediate principal stress,and vertical stress is the minimum principal stress.This law provides basic geological data for the layout and the design of the roadway support in 1111 mining area.

关 键 词：空心包体 地应力测试 应力解除法 地应力 原岩应力 

分 类 号：TD311[矿业工程—矿井建设]