万荣城关变电站地裂缝成因探讨
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摘要
自上个世纪80年代万荣县城关变电站出现地裂缝,其形成原因一直存在较大的争议。通过实际调查,变电站地裂缝的发展与场地浸水有直接关系。地裂缝对城关变电站的破坏主要表现为墙体和地面出现拱翘、开裂和水平错动变形。利用探槽、探井揭示地表浅层地裂缝的发育状况,总结了地裂缝的特征,结合场地土层的自重湿陷性,分析了变电站内出现墙体和地面破坏的原因,探讨了万荣城关变电站地裂缝的成因机制。
Since the 1980's,the ground fissures had happened in the suburb transformer substation of Wanrong County.The arguments about the genesis of the ground fissures were never stopped.Based on the field investigation,the development of the fissures was related to the immersion ground.The arching,cracking and dislocation of the ground and the structure wall were caused by the fissures in the substation.The characters of the fissures were disclosed by the exploration trenches and inspection wells.According to the self-weight collapse of the ground,the damage reasons of the ground and the wall were analyzed.The formation mechanism of the ground fissures was discussed.
Since the 1980's,the ground fissures had happened in the suburb transformer substation of Wanrong County.The arguments about the genesis of the ground fissures were never stopped.Based on the field investigation,the development of the fissures was related to the immersion ground.The arching,cracking and dislocation of the ground and the structure wall were caused by the fissures in the substation.The characters of the fissures were disclosed by the exploration trenches and inspection wells.According to the self-weight collapse of the ground,the damage reasons of the ground and the wall were analyzed.The formation mechanism of the ground fissures was discussed.
引文
[1]煤炭工业部太原设计研究院太原岩土工程公司.万荣县城关变电站地基变形岩土工程勘察报告[R].1999.
[2]高树义,苏宗正,赵晋泉等.山西峨嵋台地的挤压型地裂[J].山西地震,2006,(1):6~10.
[3]宋彦辉,彭建兵,卢全中,李忠生.山西地堑系一类特殊的剪切-挤压型地裂缝[J].工程地质学报,2007,15(4):448~452.
[4]长安大学地质工程与测绘学院.山西万荣城关变电站地裂缝勘察及场地评价报告[R].2008.
[5]王景明等.地裂缝及其灾害的理论与应用[M].西安:陕西科学技术出版社,2000.
[6]杨景春,胡晓猛,李有利等.山西地堑系地裂缝发育及其与水土流失的关系[J].水土保持研究,1999,6(4):10~14.
[2]高树义,苏宗正,赵晋泉等.山西峨嵋台地的挤压型地裂[J].山西地震,2006,(1):6~10.
[3]宋彦辉,彭建兵,卢全中,李忠生.山西地堑系一类特殊的剪切-挤压型地裂缝[J].工程地质学报,2007,15(4):448~452.
[4]长安大学地质工程与测绘学院.山西万荣城关变电站地裂缝勘察及场地评价报告[R].2008.
[5]王景明等.地裂缝及其灾害的理论与应用[M].西安:陕西科学技术出版社,2000.
[6]杨景春,胡晓猛,李有利等.山西地堑系地裂缝发育及其与水土流失的关系[J].水土保持研究,1999,6(4):10~14.
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