摘要
高放废物地质处置阿拉善预选区塔木素地段位于阿拉善地块北部,主要由二叠纪和三叠纪侵入的花岗岩类岩石构成,地壳稳定。断层较不发育,但发育韧性剪切带和韧-脆性变形带,节理受区域构造控制,地表岩体质量以Ⅲ级岩体为主,其次是Ⅳ级岩体。根据钻孔岩芯编录和力学试验数据,对岩芯质量进行评价,岩芯基本质量较差,TMS01钻孔以Ⅴ级岩体最多,TMS02钻孔以Ⅲ级岩体最多。对比岩体质量和测井数据,发现岩体质量与岩体的物理参数具有明显的相关性。通过和CSAMT剖面上对应位置的对比,建立了岩体质量与电阻率的关系。结合地表岩体质量、钻孔岩芯质量和物探剖面,对目标深度岩体进行了预测:目标深度(600 m深左右)岩体质量以Ⅱ级和Ⅲ级岩体为主,局部有Ⅰ级岩体和Ⅵ岩体。
Tamusu pre-selected area of Alxa pre-selected region for geological disposal of high-level nuclear waste is located in North Alxa Block. The crust consists of Permian and Triassic granite and is stable. There are a few faults,three ductile shear zones and one ductile-brittle deformation zone in the area. And the joints are controlled by regional tectonics. The classification of ground rock mass mainly is Ⅲ,and secondly is Ⅳ. According to core logging and mechanical test,the classifications of TMS01 and TMS02 drill cores are mainly Ⅴ and Ⅲ, respectively.From comparison of rock mass quality and well logging data,obvious correlation between quality and physical parameters of rock mass is found. Therefore,the relationship between rock mass quality and resistivity is established. Combining with the quality of surface rock mass and drilling core and geophysical prospecting section, the quality of rock mass in target depth is predicted as follows: the main rock mass is grade Ⅱ and Ⅲ,and some is grade Ⅰ and Ⅳ.
作者
袁广祥
张路青
曾庆利
黄志全
李建勇
王洪建
邓绪彪
YUAN Guangxiang;ZHANG Luqing;ZENG Qingli;HUANG Zhiquan;LI Jianyong;WANG Hongjian;DENG Xubiao(College of Geosciences and Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450045;Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029;College of Earth and Planetary Sciences,University of Chinese Academy of Sciences,Beijing 100049)
出处
《工程地质学报》
CSCD
北大核心
2018年第6期1690-1700,共11页
Journal of Engineering Geology
基金
河南省高校青年骨干教师培养计划(2015GGJS-105)
国家自然科学基金项目(41402269
U1704243
41741019
51704120
41502267)
河南省科技创新人才计划(154100510006)
河南省重点科技攻关项目(152102210111
132102210113)
华北水利水电大学青年科技创新人才项目资助
关键词
高放废物地质处置
塔木素地段
目标深度岩体
岩体质量
预测
Geological disposal of high-level nuclear waste
Tamusu pre-selected area
Rock mass in target depth
Classification of rock mass
Prediction
