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1 现场压水试验设备的选择现场压水试验的设备精度及可靠性直接关系到压水试验成果可信度,因此必须对现场压水试验的设备精度进行选择。1.1 压水设备为了确保成果的准确性,最好选用带有行程计的水泵,这种计量水泵能够无级调节行程,能根据岩体渗透性的不同很方便的对流量和压力进行控制,使用时可以在最大压力(最大流量)之间任意无级调节。压水稳定精度和灵敏度高。但计量泵供水量小难以满足大流量的要求。
A selection of on-site water pressure test equipment The accuracy and reliability of on-site water pressure test equipment is directly related to the credibility of the pressure test results, it is necessary to test the accuracy of the site pressure water equipment to choose. 1.1 pressure water equipment In order to ensure the accuracy of the results, it is best to use a pump with a tripod, this metering pump stepless adjustment of travel, rock permeability can be different according to the flow and pressure is very easy to control, use When the maximum pressure (maximum flow) between any stepless adjustment. Pressure water stability and high sensitivity. However, the metering pump is difficult to meet the large flow of water requirements.