岩溶塌陷试验、评估与管理方法研究

岩溶塌陷是我国岩溶区主要地质灾害类型 ,广泛分布在我国广西、贵州、湖南、江西、云南等 2 3个省 (区 )。据初步调查 ,全国有 30 0多个市县共发生过岩溶塌陷 14 0 0例以上 ,塌陷坑总数超过 4× 10 4个 ,有效减轻其影响已成为广大岩溶工作者面临的重要问题。本文以作者近年来完成的项目成果为基础 ,介绍了岩溶塌陷模型试验测试技术、基于GIS的风险评估方法以及信息管理技术 ,最后 ,对岩溶塌陷研究的趋势作了系统分析。

STUDY ON THE SIMULATION, ASSESSMENT AND MANAGEMENT METHOD OF KARST COLLAPSE

Karst collapse, widely distributed in Guangxi, Guizhou, Hunan, Jiangxi, Yunnan etc. 23 provinces, is a main kind of geohazards in Karst regions of China. According to the investigation, 1 400 cases of karst collapses are reported in 300 cities or counties, and the total number of collapse pits is over 40 000. The Karst researchers are confronted with how to effectively reduce the influence of this kind of hazards. Based on the achievements of the research projects finished in the recent years, the paper introduces the simulation techniques, the risk assessment method by GIS, and the systematic analysis of new tendency of Karst collapse research.