摘要
地面塌陷对工程建设危害重大,查明地面塌陷的成因是工程治理的基础。为查明长沙城郊某地面塌陷区的范围、发育形态和规模,联合应用了天然场源面波法和高密度电法。成果经钻探验证表明:天然场源面波法和高密度电法反映的结果具有较好的一致性;天然场源面波能更精细地查明引起塌陷的采空区异常范围和埋深;高密度电法能更全面地揭露塌陷区地下采空区发育形态;采用两种方法进行地面塌陷勘察能取得更全面的成果。
Ground collapse is a major hazard to engineering construction,and identifying the cause of ground collapse is the basis for engineering management.In order to investigate the spatial characteristics of ground collapse in Changsha,a combined application of natural source surface wave exploration and high-density electric method has been applied.The result of drilling verification indicates that the two methods coincide well.The natural source surface wave exploration detects the range of ground collapse more precisely while high-density electric method reveals the spatial characteristics of collapse more clearly.Therefore,the combined application of the two methods gives a more comprehensive result in the ground collapse survey projects.
作者
周杰
李坤鹏
张琦
李波
黎新跃
Zhou Jie;Li Kunpeng;Zhang Qi;Li bo;Li Xinyue(Geophysical and Geochemical Exploration Institute of Hunan Province,Changsha Hunan 410116,China)
出处
《工程地球物理学报》
2018年第4期530-537,共8页
Chinese Journal of Engineering Geophysics
关键词
地面塌陷
天然源面波
高密度电法
钻探验证
ground collapse
natural source surface wave
high density electrical method
drilling verification
