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岩体的水力承载能力是水利工程区域岩体承受高水头作用的能力。应用水力阶撑劈裂试验对尼泊尔上塔马克西水电站厂房区岩体进行了测试,试验工作包括9个测段。结果显示在厂房区左侧围岩岩体抗劈裂能力较高,最大达到10.5MPa,最小为9.2MPa;厂房右侧围岩各测段抗劈裂强度最大值为7MPa,最小6.7MPa;厂房底部围岩抗劈裂强度最大值9.5MPa,最小值为8.6MPa,说明该工程区具有较好的抗渗透能力。测试数据不仅为厂房设计施工提供了准确的依据,也为了解喜马拉雅山南麓地区岩体相关参数提供了参考。
The hydraulic carrying capacity of rock mass is the ability of the rock mass in the hydraulic engineering area to bear the high water head. The hydraulic fracturing test was used to test the rock mass in the powerhouse area of Tamaikesi Hydropower Station in Nepal. The test includes 9 test sections. The results show that the wall rock mass on the left side of the plant area has a high anti-splitting ability with a maximum of 10.5 MPa and a minimum of 9.2 MPa. The maximum anti-splitting strength of each section of the surrounding rock of the plant is 7 MPa and the minimum is 6.7 MPa. The maximum value of the anti-splitting strength of the surrounding rock at the bottom is 9.5MPa and the minimum is 8.6MPa, which shows that the project area has better anti-penetration ability. The test data not only provides an accurate basis for plant design and construction, but also provides references for understanding rock mass parameters in the southern foot of the Himalayas.