人民长江
人民長江
인민장강
YANGTZE RIVER
2015年
16期
43-47
,共5页
工程地质%滑坡%基本特征%稳定性%工程治理
工程地質%滑坡%基本特徵%穩定性%工程治理
공정지질%활파%기본특정%은정성%공정치리
engineering geology%landslide%basic characteristics%stability%engineering treatment
某近坝滑坡分布在一拟建水电站大坝右坝肩上游侧、电站进水口南侧,滑坡若失稳将直接对大坝水工建筑物产生危害,是水电站工程建设首要解决的重大技术问题。通过工程地质测绘、钻探、平硐勘探、岩土测试等大量勘察工作,查明该滑坡体积约70万m3,为中型堆积层滑坡,现状整体处于基本稳定性状态,水库运行后或建坝前后叠加暴雨久雨滑体饱水等多种工况下,滑坡整体处于欠稳定-不稳定状态,因此必须采取工程治理措施。经比较,建议结合大坝三期围堰建设对该滑坡采取清除的工程措施,彻底消除滑坡危害。
某近壩滑坡分佈在一擬建水電站大壩右壩肩上遊側、電站進水口南側,滑坡若失穩將直接對大壩水工建築物產生危害,是水電站工程建設首要解決的重大技術問題。通過工程地質測繪、鑽探、平硐勘探、巖土測試等大量勘察工作,查明該滑坡體積約70萬m3,為中型堆積層滑坡,現狀整體處于基本穩定性狀態,水庫運行後或建壩前後疊加暴雨久雨滑體飽水等多種工況下,滑坡整體處于欠穩定-不穩定狀態,因此必鬚採取工程治理措施。經比較,建議結閤大壩三期圍堰建設對該滑坡採取清除的工程措施,徹底消除滑坡危害。
모근패활파분포재일의건수전참대패우패견상유측、전참진수구남측,활파약실은장직접대대패수공건축물산생위해,시수전참공정건설수요해결적중대기술문제。통과공정지질측회、찬탐、평동감탐、암토측시등대량감찰공작,사명해활파체적약70만m3,위중형퇴적층활파,현상정체처우기본은정성상태,수고운행후혹건패전후첩가폭우구우활체포수등다충공황하,활파정체처우흠은정-불은정상태,인차필수채취공정치리조시。경비교,건의결합대패삼기위언건설대해활파채취청제적공정조시,철저소제활파위해。
A landslide is distributed at the upstream of a planned dam right abutment, south side of inlet of the hydropower plant. The hydraulic structures would be destructed if the landslide losses stable, so it is a major technical problem to be solved. Through the survey work such as engineering geological mapping, drilling, adit surveying, geomechanics testing, etc. , it is dis-covered that the volume of the landslide is about 700 thousands m3 , belonging to a medium debris landslide, and its overall situa-tion is stable. Under a multiple operation conditions such the reservoir impoundment and operation as well as sliding body saturat-ed due to storm, long period heavy rainfall, the whole landslide would be in less stable to unstable state. Therefore, the engineer-ing measures should be adopted. Through comparison, it is suggested that the landslide should be moved out in combination with the third stage cofferdam construction, so as to avoid the danger of the landslide completely.
