歌乐山岩溶地面塌陷发育特征

歌乐山为高位岩溶地带,加之近年来人类工程活动加剧,岩溶地面塌陷发生频繁。中梁山山脉沙坪坝行政区段基本覆盖传统意义上歌乐山地区,文章以此为研究范围,搜集以往调查、勘察资料并加以系统分析,旨在研究、总结歌乐山地区岩溶地面塌陷发育特征。研究结果表明,区内岩溶地面塌陷数量呈现逐年递增的趋势,但季节分布不均匀,其空间上主要分布在岩溶较发育、地下水位变动较大、地层岩性碳酸钙含量较高、土层厚度3～8m的地带;塌陷发育过程分为早期、中期、晚期三个阶段,以潜蚀作用为主导因素。...

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Bibliographic Details
Published in中国岩溶 Vol. 34; no. 1; pp. 58 - 63
Main Author 张海坦 李庆华 邓书金
Format Journal Article
LanguageChinese
Published 重庆市地质矿产勘查开发局南江水文地质工程地质队,重庆,401147 2015
Subjects
发育规律
岩溶地面塌陷
歌乐山
致塌因素
歌乐山
致塌因素
岩溶地面塌陷
发育规律
collapse force
development rule of karst
karst collapse
Gele mountain
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ISSN1001-4810
DOI10.11932/karst20150108

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Summary:歌乐山为高位岩溶地带,加之近年来人类工程活动加剧,岩溶地面塌陷发生频繁。中梁山山脉沙坪坝行政区段基本覆盖传统意义上歌乐山地区,文章以此为研究范围,搜集以往调查、勘察资料并加以系统分析,旨在研究、总结歌乐山地区岩溶地面塌陷发育特征。研究结果表明,区内岩溶地面塌陷数量呈现逐年递增的趋势,但季节分布不均匀,其空间上主要分布在岩溶较发育、地下水位变动较大、地层岩性碳酸钙含量较高、土层厚度3～8m的地带;塌陷发育过程分为早期、中期、晚期三个阶段,以潜蚀作用为主导因素。
Bibliography:45-1157/P
Gele mountain; karst collapse; collapse force; development rule of karst
ZHANG Hai-tan, LI Qing-hua, DENG Shu-jin （ Nanj iang H ydrogeological ＆ Engineering Geology Brigade, Chongqing Bureau of Geology and Minerals Exploration, Chong qing 401147, China）
The trough valley zone of the Gele mountains is largely covered by limestone,with a hill landform and complex geological environment.Influenced by the subtropical monsoon climate,the rainfall of the rainy season（from May to October）in this area reaches 881.40 mm,accounting for 80 percent of the total annual precipitation,resulting in nonuniform distribution of rainfall between the rainy and dry seasons.With the increasing human engineering activity in recent years,karst collapse occurs frequently,which have become the main geological disaster in this region.This work collected and analyzed relevant data of previous surveys and related data of existing hydrological boreholes with long-term observations,and made a special investigation of environmental ge
ISSN:1001-4810
DOI:10.11932/karst20150108