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南水北调西线第一期工程调水区水压致裂地应力测量及其工程意义

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彭华, 崔巍, 马秀敏, 李金锁. 2006. 南水北调西线第一期工程调水区水压致裂地应力测量及其工程意义. 地质力学学报, 12(2): 182-190.
引用本文: 彭华, 崔巍, 马秀敏, 李金锁. 2006. 南水北调西线第一期工程调水区水压致裂地应力测量及其工程意义. 地质力学学报, 12(2): 182-190.
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PENG Hua, CUI Wei, MA Xiu-min, LI Jin-suo. 2006. HYDROFRACTURING IN-SITU STRESS MEASUREMENTS OF THE WATER DIVERSION AREA IN THE FIRST STAGE OF THE SOUTH-NORTH WATER DIVERSION PROJECT (WESTERN LINE). Journal of Geomechanics, 12(2): 182-190.
Citation: PENG Hua, CUI Wei, MA Xiu-min, LI Jin-suo. 2006. HYDROFRACTURING IN-SITU STRESS MEASUREMENTS OF THE WATER DIVERSION AREA IN THE FIRST STAGE OF THE SOUTH-NORTH WATER DIVERSION PROJECT (WESTERN LINE). Journal of Geomechanics, 12(2): 182-190.
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南水北调西线第一期工程调水区水压致裂地应力测量及其工程意义

  • 1. 中国地质科学院地质力学研究所, 北京 100081;

  • 2. 中国华水水电开发总公司, 北京 100054

  • 基金项目:

    中国地质调查局“南水北调西线第一期工程地壳稳定性调查与评价”（编号：200113000092）项目成果.

详细信息
    作者简介: 彭华(1964-),男,研究员,博士生导师,主要从事地应力测量、地质灾害、围岩稳定性和岩石力学与工程施工等方面的研究工作,E-mail:penghuabgs2005@yahoo.com.cn。

  • 中图分类号: TU457

HYDROFRACTURING IN-SITU STRESS MEASUREMENTS OF THE WATER DIVERSION AREA IN THE FIRST STAGE OF THE SOUTH-NORTH WATER DIVERSION PROJECT (WESTERN LINE)

  • 1. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China;

  • 2. China Huashui Hydropower Development Corporation, Beijing 100054, China

    摘要
  • 本文介绍了水压致裂地应力测量原理和方法及其在南水北调西线工程中的应用。在调水工程沿线测得主应力大小、方向,并分析了其相互关系和分布规律。结果表明现今地壳应力场水平主应力占主导地位,属逆断层状态,且σHmax/σV较大,属于构造影响强烈地区,主压应力方向总体呈NE向,与区域构造线呈锐角相交,是造成区域大多数断裂压扭左行运动的主要动力。进一步分析了深埋隧道发生岩爆灾害的可能性,为南水北调西线工程各引水线路的优化设计和隧道灾害防治提供了可靠资料。
    This paper introduces the principle and method of hydrofracturing insitu stress measurement and its applications in the south-north water diversion project of the western line.The magnitude and direction of the principal stress were measured along the line of the water diversion project and their mutual relation and distribution characteristics were analyzed.The results show that horizontal principal stress is dominant in the present crustal stress field,indicating a reversed fault state.Because the(Hmax/σV) value is higher,the tectonic activity in the area is intense.The principal compressional stress is generally northeast-directed and intersects with the regional tectonic line at an acute angle.Therefore,it is the main dynamic force for the transpressional sinistral movement of most regional faults.Moreover,the possibility of rock bursts in the deep tunnels is analyzed.These provide reliable data for the prevention and control of hazards in tunnels and the optimized design of various diversion lines for the south-north water diversion project.
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收稿日期:  2006-03-12

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