›› 2014, Vol. 28 ›› Issue (4): 128-131.

• 工程实录 • 上一篇    下一篇

盐矿水溶开采地表塌陷发生机理及防治措施

杨长来1,孔君凤2,刘 伟3   

  1. (1. 中国石油化工股份有限公司天然气川气东送管道分公司金坛储气库项目部, 江苏金坛 213200;
    2.上海光华勘测设计院有限公司,上海 200336;3.中国科学院 武汉岩土力学研究所, 武汉 430071)
  • 收稿日期:2013-12-03 出版日期:2014-06-20 发布日期:2014-08-20
  • 作者简介:杨长来(1970-),男,1993年毕业于大庆石油学院石油化工专业,现任工程师,研究方向为盐岩中能源储库的工程建设与研究。
  • 基金资助:

    基金项目:国家自然科学基金资助项目(51274187)

Ground Subsidence Mechanism and Mitigation Methods a Salt Solution Mining

YANG Changlai1, KONG Junfeng2, LIU Wei3   

  1. (1.Jintan Gas Storage Project Team, SichuantoEast Natural Gas Transmission Pipeline Branch Company of SINOPEC, Jintan, 213200; 
    2.Shanghai Guanghua Investigation and Design Institute Co., Ltd., Shanghai, 200336;
    3.Institute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan, 430071)
  • Received:2013-12-03 Online:2014-06-20 Published:2014-08-20

摘要: 水溶开采诱发地表塌陷是盐矿开采中常见的地质灾害现象,具有突发性强、破坏程度大、持续时间长等特点。系统分析了近几十年来盐矿地表塌陷的典型实例,指出溶腔不稳定造成的垮塌、卤水及地下水侵蚀诱发断层活化以及上覆岩土体侵蚀破坏后承载力降低是水溶开采诱发采区地表塌陷主要的三种模式,并揭示了塌陷发展过程中各个因素的相互作用和影响。为防止盐矿塌陷的发生,分别从理论与试验研究、地质勘查、矿井设计以及生产管理等方面提出了相关的建议和措施。

关键词: 盐矿, 水溶开采, 地表塌陷, 灾害

Abstract: The ground subsidence is a common geology hazard in the salt solution mines. The salt solution mine has the characteristics of sudden collapse, large scale and long duration of damages. This paper summarizes typical ground subsidence cases in the last decades. All of the subsidence can be classified into three categories: Collapse caused by the cavity instability; Fault activation induced by the brine and groundwater corroding; Bearing capacity failure in the overlying rock mass due to the erosion damage. Factors that might induce the damage and their interrelationships are discussed and recommendation and suggestions are also proposed for the geological investigation as well as the mine shaft design and construction aspects.

Key words: Salt Mines, Solution Mining, Ground Subsidence, Geological Hazards