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| Geological disposal of high-level radioactive wastebase to study the structural plane of deep rock mass:A case study of geological disposal of high-level radioactive waste used in the underground research laboratory of Gansu Beishan area |
| Xi-Yong WANG, Dong-Wei LI, Gong CHENG, Peng-Cheng LUO |
| Beijing Research Institute of Uranium Geology,Beijing 100029,China |
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Abstract Structural plane is an important influencing factor for the rock mass quality, 3D modeling, borehole hydraulic test and engineering design of underground research laboratory. Xinchang rock mass in Beishan area has been chosen as the preferred site for URL on geological disposal of high-level radioactive waste in China. The characteristics of structural plane in Xinchang rock mass were obtained based on acoustic borehole televiewer and other geological information. The results indicate that the granite rock mass with a high massiveness is beneficial for construction of URL. The width of faults around the preferred site and incidence in horizontal and vertical directions decrease with the depth. Characteristics of dip and strike of structural plane are the same as features of other structures in this area. The research results provide meaningful information for design of URL and further geological research.
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Received: 12 February 2018
Published: 04 June 2018
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| 断层编号 | 长度/km | 产状 | 力学性质 | 特征描述 | | F31 | 5.5 | 290°~305°∠70°~83° | 左行张扭性 | 断层带宽1.0~2.6 m,由单个或两个以上大致平行的断层面形成断层破碎带,具硅化角砾岩和围岩硅化蚀变。断层带有早期煌斑岩脉贯入 | | F32 | 6.1 | 260°~290°∠60°~80° | 左行张扭性 | 断层带宽0.3~3.1 m,由单个或两个以上大致平行的断层面组成。构造岩类型有构造角砾岩(包括硅化角砾岩)、碎斑岩、碎粒岩和碎裂的二长花岗岩,沿断层有早期二长花岗岩脉、煌斑岩脉贯入 | | F32-2 | 3.2 | 56°∠50°~55° | 张性 | 走向NW—SE的红化蚀变带,宽度小于100 m,红化蚀变带的走向为146°。在红化蚀变带仅表现为岩石的钠长石化和褐铁矿化蚀变 | | F33 | 5.1 | 280°~300°∠68°~75° | 左行张扭性 | 断层破碎带由一个或两个以上大致平行的断层面组成。单个断层面宽度一般0.45~0.60 m,最宽4.00 m。构造岩类型为硅化角砾岩、碎粒岩、和碎裂花岗闪长岩及花岗岩脉 | | F34 | 4.6 | 310°~320°∠72°~86° | 张性 | 断层带宽0.2~0.9 m,以硅化角砾岩为主,并有少量碎斑岩 |
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| 孔号 | 测量深度/m | 裂隙密集带 | | 数量 | 分布范围/m | 累计长度/m | 占全孔比重/% | | BS32 | 582.10 | 2 | 44.80~46.04和111.54~112.23 | 1.93 | 0.33 | | BS37 | 596.50 | 3 | 53.63~54.87、616.55~617.40和618.55~620.22 | 3.76 | 0.63 | | BS39 | 584.30 | 10 | 107.26~107.89、121.16~121.58、143.67~145.08、182.58~183.36、187.11~187.82、226.42~227.64、384.22~386.65、464.80~466.23、467.15~470.99、473.86~480.76 | 19.77 | 3.38 |
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| [1] |
王驹, 陈伟明, 苏锐 , 等. 高放废物地质处置及其若干关键科学问题[J]. 岩石力学与工程学报, 2006,25(4):801-812.
|
| [2] |
张华祝 . 中国高放废物地质处置:现状和展望[J]. 铀矿地质, 2004,20(4):193-195.
|
| [3] |
易树平, 马海毅, 郑春苗 . 放射性废物处置研究进展[J]. 地球学报, 2011,32(5):592-600.
|
| [4] |
潘自强, 钱七虎 . 高放废物地质处置战略研究[M]. 北京: 原子能出版社, 2009, 3-4.
|
| [5] |
WANG J . High-level radioactive waste disposal in China:update 2010[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2010,2(1):1-11.
|
| [6] |
王锡勇, 苏锐, 陈亮 , 等. 基于超声波钻孔电视的深部岩体结构面特征研究[J]. 世界核地质科学, 2014,31(1):31-44.
|
| [7] |
毛吉震 . 超声波成像钻孔电视及其在岩石工程中的应用[J]. 岩石力学与工程学报, 1994,13(3):247-260.
|
| [8] |
苏锐, 宗自华, 王驹 . 高分辨率声波钻孔电视及其在核废物地质处置深部岩体研究中的应用[J]. 岩石力学与工程学报, 2005,24(16):2922-2928.
|
| [9] |
王川婴, LAW K Tim . 钻孔摄像技术的发展与现状[J]. 岩石力学和工程学报, 2005,24(19):3440-3448.
|
| [10] |
金远新, 闵茂中, 陈伟明 , 等. 甘肃北山预选区新场地段花岗岩类岩石特征研究[J]. 岩石力学与工程学报, 2007,26(增2):3974-3981.
|
| [11] |
郭召杰, 张志诚, 张臣 , 等. 青藏高原北缘阿尔金走滑边界的侧向扩展——甘肃北山晚新生代走滑构造与地壳稳定性分析[J]. 地质通报, 2007,27(10):1678-1686.
|
| [12] |
季瑞利, 张明, 周志超 . 等北山预选区钻孔水文地质试验方法研究[J]. 铀矿地质, 2018,34(1):53-59.
|
| [13] |
赵星光, 王驹, 马利科 , 等. 高放废物地质处置库北山预选区新场岩体地应力场分布规律[J]. 岩石力学与工程学报, 2014,33(2):3750-375
|
| [14] |
谢富仁, 陈群策, 崔效峰 , 等. 中国大陆地壳应力环境基础数据库[J]. 地球物理学进展, 2007,22(1):131-136.
|
| [15] |
牛之俊, 王敏, 孙汉荣 , 等. 中国大陆现今地壳运动速度场的最新观测结果[J]. 科学通报, 2005,50(8):839-840.
|
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