微水试验研究进展

Research Progress in Slug Test

微水试验是一种快速测定水文地质参数的野外试验方法。与传统的钻孔压水试验和抽水试验相比,微水试验更经济、便捷,而且精度较高,可以满足实际工程中岩土体渗透参数野外测定的需要。回顾了微水试验理论模型60多年的研究历史及其在实际工程中的应用现状,认为微水试验在国内长期以来未能在实际勘察中取得广泛应用,除了数据处理繁琐和受仪器设备精度的制约外,最主要的原因是缺乏相关技术标准,同时对其可靠性和适用性存在不同认识。随着微水试验理论模型与试验设备的不断完善,以及相关试验规程规范的出台,微水试验方法将成为岩土体渗透性勘察中的普遍方法之一。

The slug test is a rapid field test method for determininghydrogeological parameters. Compared with traditional pumping test and borehole water pressure test,slug test method is simpler,more convenient and economical with high accuracy,which can meet the needs of field measurement of rock and soil permeability parameters. This paper reviewed the history of slug test theory in past more than 60 years and its application in practical engineering. Slug test had not been widely applied in practical survey for long time in our country. In addition to restricting data processing apparatus cumbersome and subject to precision instruments,the lack of relevant technical standards was the main reason. At the same time,experts had different knowledge of the reliability and applicability of slug test. With the constant improvement slug test theoretical models and test equipment,as well as the introduction of standardized testing procedures related,slug test method would become one of the common methods in permeability survey of rock and soil.