关山水库沥青混凝土斜坡热稳定及抗渗性试验

Thermal Stability and Impermeability Tests of Asphalt Concrete on Dam Slope,GuanshanReservoir

沥青混凝土热稳定性的测试方法一般采用斜坡流淌值,即将试件置于与坝坡相同坡度的斜面上,采用与自然状况相同的最高气温烤,测其流淌情况。沥青混凝土抗渗性以测试其渗透系数大小来反应,即加一定水压于试件上,在一定时间内根据水压下降情况求得其渗透系数。本文论述了关山水库沥青混凝土试验情况。

In this paper,the writers introduced two tests done for the Guanshan Reservoir:thermal stability test and impermeability test for asphalt concrete used in upstream dam slope 1 on 2 of the Guanshan Reservoir.the former test is,what is called,a flow test,of which the pupose is to judge whether the asphalt concrete is stable on the dam slope under the condition of local air temperature (maximum,35℃).The latter test is in much the same way as in using permeamefer in laboratory but is a little simple in its equpment in order to be more suitable to the condition in situ. The tests resuts show that the test method and test effect of these two tests are esentially meet the needs in practice.