工程地质学报
工程地質學報
공정지질학보
2015年
1期
52-58
,共7页
朱雷%王小群%聂德新%黄润秋
硃雷%王小群%聶德新%黃潤鞦
주뢰%왕소군%섭덕신%황윤추
水电工程%坝基%软弱结构面%动态评价%抗滑稳定性
水電工程%壩基%軟弱結構麵%動態評價%抗滑穩定性
수전공정%패기%연약결구면%동태평개%항활은정성
Hydropower project%Dam foundation%Weak structural plane%Dynamic evaluation%Stability
水电工程具有规模大、施工快、地质缺陷不易揭露等特点,特别是对于水电工程的安全运营至关重要的深层抗滑稳定性问题。基于上述原因,本文以金沙江观音岩水电站为例,借助坝基开挖,总结出“工程地质条件→软弱结构面展布特征动态评价→软弱结构面参数动态取值→坝基稳定性评价”这一套坝基软弱结构面动态评价方法,并以软弱结构面展布特征与参数动态研究为核心,建立起合理的坝基深层抗滑稳定性评价方法。实践表明,该套方法能合理地评价重力坝抗滑稳定性问题,保证水电工程的安全运营。
水電工程具有規模大、施工快、地質缺陷不易揭露等特點,特彆是對于水電工程的安全運營至關重要的深層抗滑穩定性問題。基于上述原因,本文以金沙江觀音巖水電站為例,藉助壩基開挖,總結齣“工程地質條件→軟弱結構麵展佈特徵動態評價→軟弱結構麵參數動態取值→壩基穩定性評價”這一套壩基軟弱結構麵動態評價方法,併以軟弱結構麵展佈特徵與參數動態研究為覈心,建立起閤理的壩基深層抗滑穩定性評價方法。實踐錶明,該套方法能閤理地評價重力壩抗滑穩定性問題,保證水電工程的安全運營。
수전공정구유규모대、시공쾌、지질결함불역게로등특점,특별시대우수전공정적안전운영지관중요적심층항활은정성문제。기우상술원인,본문이금사강관음암수전참위례,차조패기개알,총결출“공정지질조건→연약결구면전포특정동태평개→연약결구면삼수동태취치→패기은정성평개”저일투패기연약결구면동태평개방법,병이연약결구면전포특정여삼수동태연구위핵심,건립기합리적패기심층항활은정성평개방법。실천표명,해투방법능합리지평개중력패항활은정성문제,보증수전공정적안전운영。
Hydropower station is generally associated with large scale,fast construction and unforeseen geological problems.Especially the deep anti-sliding stability problem is very important for the safe operation of hydropower project.For the above reasons,this paper takes Guanyinyan hydropower station on JinSha river as example.On the basis of one year work of tracing dam foundation excavation,we develop the observational based design method.The method including the following steps:the engineering geological conditions,the observational evaluation of weak intercalation characteristics,the observation based parameter values of weak intercalated structures,and the stability of the dam foundation.It takes the observational analysis of the weak intercalation distribution characteristics and its parameter as the core.The reasonable deep anti-sliding stability evaluation method is set up for dam foundation.The practice shows that the set of methods ensure the hydropower project construction period, and also provide reliable data for the stability evaluation.