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通过对大渡河大岗山电站风化花岗岩的点荷载试验所获得的风化抗拉强度指数,和地震波速度、总孔隙度、吸水率等,均随岩体风化带的变化而有规律地变化,而且,点荷载试验指标与其它试验指标间均具有较好的相关性。因此,用点荷载试验不仅能客观地直接进行岩体风化分带,而且还可以确定不同风化带岩体的某些物理、力学性质指标,是一种研究岩体风化分带的快速简便方法。
The weathering tensile strength index, seismic wave velocity, total porosity, and water absorption rate obtained by point load tests on weathered granites of Dagangshan Hydropower Station in Dadu River changed regularly with the weathering zone of the rock mass. , Point load test indicators and other test indicators have a good correlation. Therefore, the point load test can not only objectively directly carry out the weathering zoning of the rock mass, but also can determine certain physical and mechanical property indexes of rock masses in different weathered zones. It is a quick and easy method to study the weathering zone of rock mass.