地下洞室松动圈的研究方法与现状
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摘要
地下空间的开发和利用是当前岩土工程发展的重要趋势之一。地下洞室是开挖在岩土体中作为各种用途的构筑物,地下开挖后,破坏了岩土体天然应力的相对平衡状态,引起围岩应力的重新分布,因此,地下洞室稳定性分析的重要内容之一是确定围岩应力的大小。围岩应力受诸多因素的影响,松动圈是重要的影响因素之一。文中比较详细地介绍并分析多种松动圈的确定方法,并对各种方法的优缺点进行简要评述,同时介绍了未来研究的方向。
The development and exploitations of underground space is one of the important trends of Geotechnical Engineering.Underground cavities are some kinds of useful structures which are built in rock or soil.The cavities break the balance of the natural stress.They make the stress to come to a new balance.One of the important ways that analyze the stability of underground cavities is how to make out the stress of surrounding rocks.There are many factors which can influence the stress of surrounding rocks.Broken zone is a very important factor.This paper is to introduce different theories of broken zone clearly.It also introduces the advantages and disadvantages of the theories.The direction of broken zone reach in the future is also introduced in the paper generally.
The development and exploitations of underground space is one of the important trends of Geotechnical Engineering.Underground cavities are some kinds of useful structures which are built in rock or soil.The cavities break the balance of the natural stress.They make the stress to come to a new balance.One of the important ways that analyze the stability of underground cavities is how to make out the stress of surrounding rocks.There are many factors which can influence the stress of surrounding rocks.Broken zone is a very important factor.This paper is to introduce different theories of broken zone clearly.It also introduces the advantages and disadvantages of the theories.The direction of broken zone reach in the future is also introduced in the paper generally.
引文
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[2]谷兆祺,彭守拙,李仲奎.地下洞室工程[M].清华大学出版社,1994.
[3]关宝树,杨其新.地下工程概论[M].西安交通大学出版社,2001.
[4]刘佑荣,唐辉明.岩体力学[M].中国地质大学出版社,1999.
[5]史国兴.巷道围岩松动圈理论的发展[J].河北煤炭,1995(4):1-5.
[6]孙超.地下采空区对地表稳定性的影响[D].哈尔滨:中国地震局工程力学研究所,2005.
[7]于忠久,赵同彬.围岩松动圈理论及其在巷道支护中的应用[J].煤炭技术,2004(8):53-54.
[8]Itasca Consulting Group,Inc.FLAC Theory and Background[Z].FLAC Version 5.0 Online Contents.2005.
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