中文摘要：

土石混合体渗流特性的研究对于工程建设、土石混合体滑坡的防治有重要意义。总结了前人对于堆石料渗透试验仪的研究，其特点在于渗透筒的大尺寸、供水系统、供水压力的控制；透水板、制样方法、筒壁防渗对于试验的影响。周中等自制的常水头渗透仪，主要对土石混合体渗透系数及其影响因素进行研究。本文研制的伺服控制土石混合体压力渗透仪能够准确伺服控制供水压力和供水速度，提供不超过2MPa的高水压，调节试样渗流速度，操作方便，能够有针对性的研究土石混合体的渗流特性。

英文摘要：

The permeability of rock and soil aggregates （ RSA ） is important for engineering construction, prevention and treatment of landslides in RSA. This paper gives a summary of the previous studies of the rockfill permeability test apparatus. The Tsinghua University test system is special for its recycle of water. The Hohai University test instrument is horizontal. Its lifter has the accurate control of the water level for its higher and lower water supply. Nanjing Hydraulic Research Institute studied the influence of water board, sample preparation methods and anti - seepage of the wall to the permeability test. The Luo Yuzai permeability test apparatus is special at its capability for providing the continuous high - pressure water without air. Using self - made permeability test instrument, Zhou Zhong and others from Central South University studied the permeability coefficient and its influencing factors of RSA. On the basis of previous studies, we have developed a servo - control rock and soil aggregate permeability test apparatus. The apparatus can servo - control the velocity and stress of the water supply, provide high - pressure （ 〈 2MPa） and adjust the velocity of the seepage. It is convenient to operate. The apparatus can study the permeability of the RSA successfully.