煤矿采空区建筑场地地基适宜性分析
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摘要
为了掌握采空区建筑场地的建筑适宜性,基于地震勘察、地质钻探、残余沉降分析等方法的综合运用,结合本地实际经验,探讨了该场地作为建筑用地的可行性,研究了采空区塌陷盆地残余沉降值计算方法.结果表明现研究区场地的残余下沉量最大值约200 mm,未来的地表沉降变形将以残余变形为主,其地表移动变形的活跃期已经结束.本文分析为同类工程场地问题的评价提供了参考.
In order to make clear the suitability of construction site over goaf areas,we discuss the feasibility of such building site and study the calculation method for residual ground subsidence of the collapse basin based on seismography,geological drilling,residual ground subsidence,and the local experience.The results show that the maximum residual subsidence is about 200 mm,the active period of surface deformation has finished,indicating that the subsidence deformation will mainly be the residual deformation in the future.This conclusion gives a good reference for the same engineering problems.
In order to make clear the suitability of construction site over goaf areas,we discuss the feasibility of such building site and study the calculation method for residual ground subsidence of the collapse basin based on seismography,geological drilling,residual ground subsidence,and the local experience.The results show that the maximum residual subsidence is about 200 mm,the active period of surface deformation has finished,indicating that the subsidence deformation will mainly be the residual deformation in the future.This conclusion gives a good reference for the same engineering problems.
引文
[1]马金荣,彭向峰,丁陈建.煤矿采空区场地建筑适宜性工程地质研究方法[J].煤田地质与勘探,1996(6):44-46.MA Jin-rong,PENG Xiang-feng,DING Chen-jian.Engineering geology method of studying the suitabili-ty of the land overlying mined-out arra to construc-tion[J].Coal Geology&Exploration,1996(6):44-46.
[2]中国国家标准.岩土工程勘察规范(GB50021-94)[S].北京:中国建筑工业出版杜,1995:76-79.
[3]中国国家标准.建筑地基基础设计规范(GB 50007-2002)[S].北京:中国建筑工业出版社,2002.
[4]郭惟嘉,王勇义.采空区上方修建大型建筑物地基稳定性评价价[J].岩土力学,2004,25(增刊):57-59.GUO Wei-jia,WANG Yong-yi.Stability evaluationof constructing large-scale building-toft above minegoafs[J].Rock and Soil Mechanics,2004,25(Supp):57-59.
[5]煤炭科学研究院北京开采研究所.煤矿地表移动与覆岩破坏规律及其应用[M].北京:煤炭工业出版社,1981.
[6]郭广礼.老采空区上方建筑地基变形机理及其控制[M].徐州:中国矿业大学出版社,2001.
[7]BRUHM R W.Subsidence over abandoned mines inthe Pittsburgh coalbed[C]//Proceedings of the Con-ference Held at the University of Wales Institute ofScience and Technology.Cardiff:[s.n.],1977.
[8]HEALY P R.HEAD J M.Construction over aban-doned mine workings[M].London:Construction In-dustry Reseach and Information Association(CIR-IA),1984.
[9]CARNEC C.DELACOURT C.Three years of min-ing subsidence monitored by SAR interferometry,near Gardanne,France[J].Journal of Applied Geo-physics,2000,43:43-54.
[10]许立.采空区上方建筑物的变形特征及预防措施[J].矿山测量,2001(2):55-56.XU Li.Deformation deformation and preventivemeasures of surface subsidence about building foun-dation above mine goaf[J].Mine Surveying,2001(2):55-56.
[11]郭广礼,何国清,崔曙光.部分开采老采空区覆岩稳定性分析[J].矿山压力与顶板管理,2003,20(3):70-73.GUO Guang-li,HE Guo-qing,CUI Shu-guang.A-nalysis of overlying strata stability over abandonedgoaf with partial mining[J].Ground Pressure andStrata Control,2003,20(3):70-73.
[2]中国国家标准.岩土工程勘察规范(GB50021-94)[S].北京:中国建筑工业出版杜,1995:76-79.
[3]中国国家标准.建筑地基基础设计规范(GB 50007-2002)[S].北京:中国建筑工业出版社,2002.
[4]郭惟嘉,王勇义.采空区上方修建大型建筑物地基稳定性评价价[J].岩土力学,2004,25(增刊):57-59.GUO Wei-jia,WANG Yong-yi.Stability evaluationof constructing large-scale building-toft above minegoafs[J].Rock and Soil Mechanics,2004,25(Supp):57-59.
[5]煤炭科学研究院北京开采研究所.煤矿地表移动与覆岩破坏规律及其应用[M].北京:煤炭工业出版社,1981.
[6]郭广礼.老采空区上方建筑地基变形机理及其控制[M].徐州:中国矿业大学出版社,2001.
[7]BRUHM R W.Subsidence over abandoned mines inthe Pittsburgh coalbed[C]//Proceedings of the Con-ference Held at the University of Wales Institute ofScience and Technology.Cardiff:[s.n.],1977.
[8]HEALY P R.HEAD J M.Construction over aban-doned mine workings[M].London:Construction In-dustry Reseach and Information Association(CIR-IA),1984.
[9]CARNEC C.DELACOURT C.Three years of min-ing subsidence monitored by SAR interferometry,near Gardanne,France[J].Journal of Applied Geo-physics,2000,43:43-54.
[10]许立.采空区上方建筑物的变形特征及预防措施[J].矿山测量,2001(2):55-56.XU Li.Deformation deformation and preventivemeasures of surface subsidence about building foun-dation above mine goaf[J].Mine Surveying,2001(2):55-56.
[11]郭广礼,何国清,崔曙光.部分开采老采空区覆岩稳定性分析[J].矿山压力与顶板管理,2003,20(3):70-73.GUO Guang-li,HE Guo-qing,CUI Shu-guang.A-nalysis of overlying strata stability over abandonedgoaf with partial mining[J].Ground Pressure andStrata Control,2003,20(3):70-73.
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