唐山市岩溶地质灾害综合勘察技术研究

Research on Comprehensive Survey Technology of Karst Geological Hazards in Tangshan City

溶地质灾害具有突发性、隐蔽性、分布复杂等特点,唐山市中心区曾多次发生岩溶地面塌陷。为查清唐山市区岩溶地面塌陷的发育规律,对市区的重点区域分期、分批进行岩溶地质灾害的详细勘察工作。在岩溶地质勘察中,采用多道瞬态面波法、高密度地震映象法、钻探和钻孔电视成像法等多种勘察手段相互配合,弥补了采用单一勘察手段带来的技术上的不足,提高了勘察成果的准确性,为岩溶地质灾害的防治工作提供可靠依据。

Karst geological disasters have the characteristics of suddenness,concealment,and com⁃plex distribution.The central area of Tangshan has experienced multiple karst ground collapses.In order to find out the development law of karst ground collapse in Tangshan urban area,the detailed surveys of karst geological disasters in key areas of the urban area was carried out by stages and batches.In the karst geolog⁃ical survey,multi-channel transient surface wave method,high-density seismic imaging method,drilling and borehole television imaging method and other survey methods are used to cooperate with each other,which makes up for the technical deficiency brought by single survey method,improves the accuracy of sur⁃vey results,and provides reliable basis for the prevention and control of karst geological disasters.