[1]袁和忠,王运生,房冬恒,等.西南某水电站深风化现象及其机理浅析[J].水土保持研究,2006,13(01):103-105.
YUAN He-zhong,WANG Yun-sheng,FANG Dong-heng,et al.Preliminary Analysis of Mechanism and Phenomena of Deep Weathering in Some Hydroelectric Station,Southwest of China[J].Research of Soil and Water Conservation,2006,13(01):103-105.
点击复制
YUAN He-zhong,WANG Yun-sheng,FANG Dong-heng,et al.Preliminary Analysis of Mechanism and Phenomena of Deep Weathering in Some Hydroelectric Station,Southwest of China[J].Research of Soil and Water Conservation,2006,13(01):103-105.
西南某水电站深风化现象及其机理浅析
《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
13
期数:
2006年01期
页码:
103-105
栏目:
出版日期:
1900-01-01
- Title:
- Preliminary Analysis of Mechanism and Phenomena of Deep Weathering in Some Hydroelectric Station,Southwest of China
- 分类号:
- P534.64;TV741
- 摘要:
- 对西南某电站坝区谷底存在的深风化现象，通过系统的地质测绘、钻孔资料及EH-4连续电导率成像系统勘探结果与室内测试分析，分析深风化现象特征与分布，并对这种深风化、软化现象的形成机制进行了初步探讨。研究结果表明，坝区谷底为多期侵入活动改造的古老岩体，不同期次岩体接触面因结合力较弱成为挤压破碎带，后期的构造活动使该破碎带岩体在中等围压下进一步破碎，并经中更新世以来的长期风化与软化形成现今的深风化囊。对其进行有针对性的处理，并不妨碍该坝作为低堆石坝的坝址。
- Abstract:
- Standing to phenomena of deeply weathering at the bottom of the dam area valley in some hydroelectric station,southwest of China,by the systematic geologic surveying,the data of borehole,the result of EH-4 e1ectrical conductivity image-forming system and indoor tests analysis,the deeply weathering phenomenon characteristics and its distribution are analyzed,and preliminary discussion on the genetic mechanism of the deeply weathering and softening is made.The results of study enunciate,there is ancient rock mass which is reformed by the intrusive activity many times at the bottom of the dam area valley,because of the weak cohesion bonds the dissimilar epoch contact plane of the rock mass become the compressive rupture zone,later tectonic movements make the rock mass of compressive rupture zone further broken up under medium confinement pressure,since middle Pleistocene epoch long-term weathering and yielding,current deep weathering bag has been formed.With the fitting processing,the phenomena of deeply weathering don’t hinder the dam as the address of low rockfill dam.
参考文献/References:
[1] 张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1994.
[2] 徐开礼,朱志澄.构造地质学[M].北京:地质出版社,1989.
[3] 陶忠平.浅论柴石滩水库坝区工程地质问题及工程处理[J].云南水力发电,1998,14(3):38-41.
[4] 储同庆,罗国煜,陈征宙,等.宁波大桥主墩墩址软弱带成因机制研究[J].工程地质学报,1995,3(1):10-20.
[5] 郑万模.长江三峡三斗坪坝址深风化槽形成机制探讨[J].地质灾害与环境保护,1995,6(2):46-49.
[6] 昌彦君,王华军,罗延钟.EH-4系统观测资料的非远区场校正研究[J].吉林大学学报(地球科学版),2002,32(2):177-180.
备注/Memo
收稿日期:2005-1-17;
基金项目:国家自然科学基金资助，项目编号：40472143/D0214
作者简介:袁和忠（1981- ），男，成都理工大学硕士研究生，专业方向地质环境评价与保护.
更新日期/Last Update:
1900-01-01