云南某工程建设场地岩溶分布与形成机制  

Distribution and Formation Mechanism of Karst on a Project Site in Yunnan Province

作　　者：郭纯青[1] 李志宇[1,2] 杨军 田西昭 田月明[1,2] 胡君春 

机构地区：[1]桂林理工大学环境科学与工程学院,广西桂林541006 [2]广西地质环境监测总站,广西桂林541002 [3]中国建筑西南勘察设计研究院有限公司,四川成都610081 [4]河北省环境地质勘查院,河北石家庄050021 [5]云南省煤炭地质勘查院,云南昆明650218

出　　处：《地质与勘探》2015年第5期984-992,共9页Geology and Exploration

基　　金：国家自然科学基金"中国西南岩溶区旱涝灾害演变机理及水安全"(41172230)

摘　　要：近年来,随着经济的蓬勃发展,在岩溶区修筑建筑物越来越多,岩溶作为一种特殊的不良地质作用给许多工程建设带来困难。云南某大型工程建设项目在勘察阶段发现大量的溶洞,严重影响了该工程的地基施工。本文据场地岩溶区的详细勘察和钻孔资料,描述了岩溶表现形式、在平面上和垂向上的分布特征及其影响因素,并从研究区的地形地貌、地层岩性、地质构造、气象水文和新构造运动等方面研究了岩溶的形成机制,为岩溶地区工程建设中的灾害预防提供科学依据。In recent years,with the rapid development of economy,more and more buildings have been built in karst areas. Consequently,constructions have encountered many difficulties of the karst which is an adverse geologic condition. For instance,a number of caves were found in the survey stage of a large project in Yunnan,which affected the foundation construction seriously. Based on detailed survey and borehole data,this paper describes the morphology and spatial distribution of karst in this area as well as its influence factors. And its formation mechanism is analyzed from landform,stratum lithology,geological structure,hydrology and neotectonic movement. The results will provide scientific basis for disaster prevention in engineering construction of karst areas.

关 键 词：岩溶分布 形成机制 云南 

分 类 号：P642.251[天文地球—工程地质学]