中国科技核心期刊
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白音呼布矿地应力分布特征及其与地质构造关系
- 作者：
- 范文涛|纪永刚|高红利|张杰
- 作者单位：
- 锡林郭勒盟山金白音呼布矿业有限公司|锡林郭勒盟山金白音呼布矿业有限公司|锡林郭勒盟山金白音呼布矿业有限公司|北京科技大学土木与资源工程学院
基金项目：
- isnull
详细信息：
- 作者简介：
- 范文涛（1986—），男，内蒙古赤峰人，工程师，从事采矿工艺、矿山地压与岩层控制等工作；内蒙古自治区锡林郭勒盟东乌珠穆沁旗乌里雅斯太镇，锡林郭勒盟山金白音呼布矿业有限公司，026300；E-mail：fanta.cn@163.com
- 通讯作者：
- E-mail：1076715299@qq.com，18632229736
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Crustal stress distribution characteristics and its relationship with geological structure in Baiyinhubu Mine
- English Author：
- Baiyinhubu Minerals Co.,Ltd.,Xilin Gol Shandong Gold Group|Baiyinhubu Minerals Co.,Ltd.,Xilin Gol Shandong Gold Group|Baiyinhubu Minerals Co.,Ltd.,Xilin Gol Shandong Gold Group|School of Civil and Resource Engineering,University of Science and Technology Beijing
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
白音呼布矿最大开采深度已达900 m，地应力环境复杂，深部围岩较为破碎，并伴随岩爆等地质灾害。为进一步研究开采过程中围岩稳定性及其控制措施，采用应力解除法对矿区5个水平中段共7个测点进行了地应力测量，基于改进算法编制的LabVIEW计算程序，获得了测点应力的大小、方向和倾角，并以此建立地应力场模型，分析矿区应力状态空间分布规律及应力场与地质构造的关系。研究结果表明：地应力以水平应力为主导，最大主应力平均方位角为236°；NE向张性断裂构造F2对矿区有控制作用，矿区测点最大水平主应力方向全部为NE—SW向，区域构造应力场的方向与实测原岩应力场方向相同。
关键词:
深部开采；地应力测量；应力解除法；地质构造；构造应力
Abstract:
At present,the maximum mining depth of Baiyinhubu mining area has reached 900 m,the geological stress environment is complex,the deep surrounding rock is relatively broken and accompanied by geological disasters such as rock burst.In order to further study the stability of surrounding rock and its control measures in the mining process,the stress relief method was used to measure the crustal stress at 7 measuring points in 5 horizontal levels of the mining area.Based on LabVIEW calculation program compiled by improved algorithm,the magnitude,direction and inclination of the stress at the measuring points were obtained,the crustal stress field model was established,and the spatial distribution law of the stress state in the mining area and the relationship between the stress field and geological structure were analyzed.The results show that the crustal stress is dominated by horizontal stress,the average azimuth angle of the maximum principal stress is 236°.NE-direction extensional fault F2 controls the structure of the mining area.The maximum horizontal principal stress direction of the measuring points in the mining area is all located in NE-SW direction,and the direction of the regional tectonic stress field is the same as the measured original rock stress direction.
Keywords:
mining depth;crustal stress measurement;stress relief method;geological structure;tectonic stress
