郝文忠, 王吉亮, 黄孝泉, 周炳强, 刘冲平, 许琦, 魏雨军. 2016: 金沙江乌东德水电站高拱坝河床建基面选择工程地质研究. 工程地质学报, 24(s1): 728-733. DOI: 10.13544/j.cnki.jeg.2016.s1.106
    引用本文: 郝文忠, 王吉亮, 黄孝泉, 周炳强, 刘冲平, 许琦, 魏雨军. 2016: 金沙江乌东德水电站高拱坝河床建基面选择工程地质研究. 工程地质学报, 24(s1): 728-733. DOI: 10.13544/j.cnki.jeg.2016.s1.106
    HAO Wenzhong, WANG Jiliang, HUANG Xiaoquan, ZHOU Bingqiang, LIU Chongping, XU Qi, WEI Yujun. 2016: STUDY ON THE ENGINEERING GEOLOGY OF THE SELECTION OF RIVERBED FOUNDATION PLANE OF HIGH ARCH DAM OF WUDONGDE HYDROPOWER STATION ON JINSHA RIVER. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 728-733. DOI: 10.13544/j.cnki.jeg.2016.s1.106
    Citation: HAO Wenzhong, WANG Jiliang, HUANG Xiaoquan, ZHOU Bingqiang, LIU Chongping, XU Qi, WEI Yujun. 2016: STUDY ON THE ENGINEERING GEOLOGY OF THE SELECTION OF RIVERBED FOUNDATION PLANE OF HIGH ARCH DAM OF WUDONGDE HYDROPOWER STATION ON JINSHA RIVER. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 728-733. DOI: 10.13544/j.cnki.jeg.2016.s1.106

    金沙江乌东德水电站高拱坝河床建基面选择工程地质研究

    STUDY ON THE ENGINEERING GEOLOGY OF THE SELECTION OF RIVERBED FOUNDATION PLANE OF HIGH ARCH DAM OF WUDONGDE HYDROPOWER STATION ON JINSHA RIVER

    • 摘要: 拱坝的修建对河床坝基、两岸坝肩及拱座岩体条件要求高,尤其象乌东德水电站这种高达270m的高拱坝,河床建基面的选择在拱坝勘察中就显的尤为重要。乌东德水电站在小口径钻探常规勘察手段的基础上,结合运用钻孔数字彩电、声波测试等物探手段进行建基面研究。综合分析钻孔芯样、岩心获得率、压水试验成果、钻孔彩电及声波解译成果,提出河床坝基建基面选择地质建议,最终确定利用岩体完整,工程地质性状好的Ⅱ1级岩体作为河床坝基,建基面最低高程718m。其研究方法及思路可供类似工程勘察借鉴。

       

      Abstract: There is high demand for the rock body of riverbed foundation, dam abutments and arch abutment in the process of building arch dam, especiallyWudongdehydropower station is as high as 270m high arch dam, the selection ofriverbed foundation planeis particularly important for the arch dam survey. Based on the conventional survey methods for Wudongdehydropower station, such as small diameter drilling, this paper studiedfoundation plane combined with drilling digital color television, water pressure test, sound wave testing, and so on. Then, the paper put forward the geology suggestions for the selection of riverbed foundation plane through a series of test results, determining the grade Ⅱ1 rock mass as the riverbed foundation, which has intact rock mass and good engineering geological characteristics, the minimum elevationof foundation plane is 718m. The research methods and ideas arereferencedby similar engineering survey.

       

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