四川德阳地区龙风水库西岸滑坡稳定性分析及防治
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摘要
本文在对四川德阳地区龙凤水库西岸滑坡的地质地貌条件及变形迹象进行深入调查的基础上,对该滑坡的主要成因及稳定性进行了分析与评价,并有针对性地提出了工程防治方案。研究表明,疏松透水的土层、较强的降雨以及人类耕作活动是导致滑坡发生的主要因素。在天然状态下该滑坡稳定或基本稳定;在天然+地震状态下,该滑坡欠稳定或不稳定;在连续高强度降雨状态下,该滑坡不稳定。故采取截、排水及抗滑桩等工程措施是防治该滑坡的有效方案。
Basing on the thorough investigation on geological and geomorphologic conditions and deformation indications of the landslide at the western bank of Longfeng reservoir in Deyang district,Sichuan province,this paper makes an analysis of formation and evaluation of landslide stability,and puts forward a control program.The present investigation shows that the main factors leading to the landslide are loose permeable soil layer,strong rainfall and human farming activities.In the natural state,the landslide is stable or basically stable;in natural plus seismic states,the landslide is not stable or not adequately stable;under the condition of continuous heavy rainfall,the landslide is not stable.Therefore,using the engineering measures such as interception of water,drainage and resistance piles to sliding are the effective program to control the landslide.
Basing on the thorough investigation on geological and geomorphologic conditions and deformation indications of the landslide at the western bank of Longfeng reservoir in Deyang district,Sichuan province,this paper makes an analysis of formation and evaluation of landslide stability,and puts forward a control program.The present investigation shows that the main factors leading to the landslide are loose permeable soil layer,strong rainfall and human farming activities.In the natural state,the landslide is stable or basically stable;in natural plus seismic states,the landslide is not stable or not adequately stable;under the condition of continuous heavy rainfall,the landslide is not stable.Therefore,using the engineering measures such as interception of water,drainage and resistance piles to sliding are the effective program to control the landslide.
引文
[1]四川省广汉地质工程勘察院.汶川地震灾区震后德阳市旌阳区地质灾害详细调查与区划报告[R].2009.
[2]北京市地质研究所.四川省德阳市旌阳区双东镇龙凤水库西岸滑坡应急治理工程勘查报告[R].2009.
[3]苏爱军.滑坡稳定性评价原理与方法——条分法的改进[M].北京:中国地质大学出版社,2008.
[4]王恭先,等.滑坡学与滑坡防治技术[M].北京:中国铁道出版社,2007.
[5]陶志平,等.三峡库区巨鱼沱滑坡地质特征及防治研究[J].工程地质学报,2003,11(04):406-410
[6]张倬元.滑坡防治工程的现状与发展展望[J].地质灾害与环境保护,2000,11(02):89-97
[7]北京市地质研究所.四川省德阳市旌阳区双东镇龙凤水库西岸滑坡应急治理工程初步设计[R].2009
[2]北京市地质研究所.四川省德阳市旌阳区双东镇龙凤水库西岸滑坡应急治理工程勘查报告[R].2009.
[3]苏爱军.滑坡稳定性评价原理与方法——条分法的改进[M].北京:中国地质大学出版社,2008.
[4]王恭先,等.滑坡学与滑坡防治技术[M].北京:中国铁道出版社,2007.
[5]陶志平,等.三峡库区巨鱼沱滑坡地质特征及防治研究[J].工程地质学报,2003,11(04):406-410
[6]张倬元.滑坡防治工程的现状与发展展望[J].地质灾害与环境保护,2000,11(02):89-97
[7]北京市地质研究所.四川省德阳市旌阳区双东镇龙凤水库西岸滑坡应急治理工程初步设计[R].2009
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