应力-溶解耦合作用下的盐腔水溶建腔机制研究

›› 2012, Vol. 33 ›› Issue (S2): 37-0045.

应力-溶解耦合作用下的盐腔水溶建腔机制研究

汤艳春^{1, 3}，周辉²，许模¹

1. 成都理工大学地质灾害防治与地质环境保护国家重点实验室，成都 610059； 2. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室，武汉 430071；3. 三峡大学土木与建筑学院，湖北宜昌 443002

收稿日期:2011-11-15 出版日期:2012-11-22 发布日期:2012-12-11
通讯作者: 周辉，男，1972年生，博士，研究员，主要从事岩石力学试验、理论、数值模拟与工程安全性分析方面的研究。E-mail: hzhou@whrsm.ac.cn E-mail:tych8102-2002@163.com
作者简介:汤艳春，男，1981年生，博士，副教授，主要从事可溶岩应力-溶解耦合机理方面的研究工作
基金资助:
国家自然科学基金青年基金项目资助（No. 50809035）；三峡大学三峡库区地质灾害教育部重点实验室开放基金资助（No. 2008KDZ02）

Study of mechanism of washing process of rock-salt cavern under coupled mechanical-dissolving effect

TANG Yan-chun^1,3, ZHOU Hui², XU Mo¹

1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China; 2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 3. College of Civil Engineering and Architecture, China Three Gorges University, Yichang, Hubei 443002, China

Received:2011-11-15 Online:2012-11-22 Published:2012-12-11

摘要/Abstract

摘要： 通过分析岩盐应力-溶解耦合效应对盐腔水溶建腔过程的影响，研究应力-溶解耦合作用下的盐腔水溶建腔机制。研究表明，在盐腔成腔过程中，应力-溶解耦合效应对盐腔形状的影响不可忽略；应力-溶解耦合作用下的盐腔水溶建腔机制在于溶蚀作用下在水的溶蚀影响范围内的腔壁围岩力学性质发生变化，同时，由于腔壁边界处围岩力学性质的改变，造成盐腔内部溶蚀过程发生变化，从而使盐腔形态发生改变；根据应力-溶解耦合作用下的盐腔水溶建腔机制，建立应力-溶解耦合作用下的盐腔水溶建腔计算方法；使用编制的应力-溶解耦合作用下的盐腔形态变化计算程序以及FLAC计算软件对水溶建腔过程进行计算。计算结果表明，相比于纯溶解作用，应力-溶解耦合作用下计算得到的盐腔形状与实际溶腔形状较为符合。该研究成果可为进一步研究储库盐腔水溶建腔机制提供理论依据和分析基础。

关键词: 盐腔, 应力-溶解耦合作用, 水溶建腔

Abstract: Through analyzing the influence for washing process of rock-salt cavern with coupled mechanical-dissolving effect, mechanism of washing process of rock-salt cavern under coupled mechanical-dissolving effect has been studied. The research results show that during the washing process, influence for rock-salt cavern shape by coupled mechanical-dissolving effect can not be ignored. The mechanism of washing process of rock-salt cavern under coupled mechanical-dissolving effect is that because of dissolving effect the mechanical properties of wall rock of rock-salt cavern within the scope of influence by water has been changed; and then because of the variation for the mechanical properties of the boundary of wall rock, the dissolving process in the interior of rock-salt cavern has been changed; so that the variation for the shape of rock-salt cavern has occurred. According to the mechanism of washing process of rock-salt cavern under coupled mechanical-dissolving effect, the computing method of washing process of rock-salt cavern under coupled mechanical-dissolving effect has been built. Based on the established computing method, by computing program of rock-salt cavern shape under coupled mechanical-dissolving effect and FLAC software the washing process of rock-salt cavern has been computed. the computing results show that compared with the computing shape of rock-salt cavern under dissolving effect, the computing shape of rock-salt cavern under mechanical-dissolving effect more coincided with the actual shape of rock-salt cavern. The results can provide a foundation for further analysis of the mechanism of washing process of rock-salt cavern.

Key words: rock-salt cavern, coupled mechanical-dissolving effect, washing process

中图分类号:

TU 443

汤艳春，周辉，许模 . 应力-溶解耦合作用下的盐腔水溶建腔机制研究[J]. , 2012, 33(S2): 37-0045.

TANG Yan-chun , ZHOU Hui , XU Mo . Study of mechanism of washing process of rock-salt cavern under coupled mechanical-dissolving effect[J]. , 2012, 33(S2): 37-0045.

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