(1. College of Civil Engineering，Hohai University，Nanjing，Jiangsu 210098，China；2. Mid-South Design and Research Institute，China Hydropower Engineering Consulting Group Co.，Changsha，Hunan 410014，China；3. Institute of Geotechnical Engineering，Changsha University of Science and Technology，Changsha，Hunan 410076，China)
Abstract：To acquire the seepage characteristics of fractured rock mass under the dam foundation of Xiangjiaba hydropower station，high pressure seepage test system and experimental method are researched based on spatial distribution of fractured rock mass. An in-situ high pressure seepage test method for the seepage of dam foundation fractured rock mass is proposed. The focus of this study is that the in-situ seepage deformation is researched by method of comparative analysis of water quality and video in measured borehole. Basic criterion is put forward to determine critical hydraulic gradient. Study results indicate that the critical hydraulic gradient obtained from in-situ seepage test is more reasonable than that of indoor test because in-situ high pressure seepage test method can reflect the actual environment state of fractured rock mass better.
赵海斌,翦波，王思敬，蒋中明. 坝基破碎岩体高压渗透变形原位试验 [J]. 岩石力学与工程学报, 2009, 28(11): 2295-2300.
ZHAO Haibin1，2，JIAN Bo2，WANG Sijing1，JIANG Zhongming3 . IN-SITU TEST OF FRACTURED ROCK MASS WITH HIGH PRESSURE SEEPAGE IN DAM FOUNDATION. , 2009, 28(11): 2295-2300.
