中国科技核心期刊
美国化学文摘社（CAS）数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
含水破碎段井壁结构与围岩稳定性分析及其支护实践
- 李晓飞|孟祥凯
- 作者单位：
- 山东黄金矿业（莱州）有限公司焦家金矿|山东黄金矿业（莱州）有限公司焦家金矿
基金项目：
- isnull
详细信息：
- 作者简介：
- 李晓飞（1988—），男，山东烟台人，工程师，硕士，从事金属矿山基建、采矿技术及岩石力学研究等工作；山东省莱州市金城镇焦家大街，山东黄金矿业（莱州）有限公司焦家金矿，261441；E-mail：1987lixiaofei@163.com
- 通讯作者：
- isnull
- 此文档没有上传！
Stability of wall structure and wall rock in water-bearing fragmented section and their support practice
- English Author：
- Jiaojia Gold Mine,Shandong Gold Mining Industry(Laizhou)Co.,Ltd.|Jiaojia Gold Mine,Shandong Gold Mining Industry(Laizhou)Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
以某含水破碎段竖井为工程背景，通过钻孔岩心地质调查，采用基于岩体地质力学分类的稳定性图表，对-1 000~-1 200 m竖井井筒围岩的稳定性进行分析，为井筒建设及服役期围岩稳定性控制方案的制定提供依据和基础。对井筒含水破碎段围岩的混凝土井壁进行计算，提出新的井筒围岩支护设计方法，确立了“混凝土井筒不承压”的深部竖井支护设计理念，增加掘进工作面积裸露高度，使井筒围岩压力充分释放，并采用临时支护+混凝土浇筑的井壁结构对该竖井进行支护，对支护效果进行实时监测，结果表明，采用该支护方式能够顺利通过竖井含水破碎段。
关键词:
含水破碎段；竖井；岩石力学；支护；稳定性
Abstract:
The study takes a vertical shaft in the water-bearing fragmented section as the engineering background,carries out drill core geological survey,and analyzes the stability of the shaft wall rock in -1 000--1 200 m according to the stability diagram based on rock geological mechanical classification,in order to provide basis and reference for the plan making of shaft construction and in-service wall rock stability control.The concrete wall of the shaft wall rock in the water-bearing fragmented section is calculated,the new shaft wall rock support designs are proposed,and the deep vertical shaft support design notion of pressure-free concrete shaft is determined.The exposed height of excavation work face is increased to fully release the shaft wall rock pressure.Then,the shalt is supported by temporary support+concrete shaft wall structure and the effect is monitored in real-time.The results show that the support means can make it through the shaft water-bearing fragmented section.
Keywords:
water-bearing fragmented section;shaft;rock mechanics;support;stability
