粗粒土渗透特性试验系统的改进

渗透特性参数是研究大坝渗流分析和渗透稳定性的重要指标.靠现有市政供水系统进行供水供压的常规渗透试验设施,已无法满足目前高坝、高水头、大流量特点的试验条件要求,因此在充分考虑节能环保和职业安全的前提下,采用组合式渗透仪、恒压供水系统、水循环系统以及大量程、高精度的测压系统,对原有渗透特性试验设备系统进行了优化和改进.应用表明,该试验系统测量精度高、操作便捷、安全实用、可靠性好,可满足高坝渗透特性试验的要求.

Improvement of permeability test system of coarse earth

Permeability parameters are an important index for analysis of dam seepage and stability of percolation.Conventional permeability test facilities that depend on the existing municipal water supply system cannot satisfy the test requirements for high head and maximum flow of large dams.Therefore,in full consideration of environmental protection and occupational safety,the existing permeability test equipment system is optimized and improved by using composite permeameter,water supply system with constant pre...