【作者】 曹建生； 张万军； 韩淑敏； 杨永辉；

【Author】 Cao Jiansheng Zhang Wanjun Han Shumin Yang Yonghui (Center for Agricultural Resources Research,Institute of Genetics and Developmental Biology,CAS,Shijiazhuang 050021,China)

【机构】 中国科学院遗传与发育生物学研究所农业资源研究中心；

【摘要】 本文在分析目前野外岩土入渗测定方法的基础上,介绍了自行设计的一种岩土入渗自动测定系统。该测定系统主要由双环、恒压供水装置及翻斗式流量测定仪3部分组成。其工作原理是:在恒压供水装置为双环入口提供恒定水流的条件下,利用翻斗式流量测定仪对双环出口的水流过程进行测定,然后根据动态水量平衡原理,计算不同时刻岩土的入渗速率。该方法改变了通过测定双环(或供水箱)内的水位变化来计算岩土入渗速率的传统思路,实现了定水头条件下岩土入渗过程的自动测定,提高了双环法的测量精度与自动化程度。更多还原

【Abstract】 Based on present situation of measuring water infiltration rate in soil and rock,designed a self-monitor system on measuring the water flow in soil and rock characterized by a weathering layer of gneiss beneath a shallow soil layer is designed in this paper.The system consisted of three parts,which were double loops,water-supply de- vice in constant pressure,and the flow-measurement device using tilting bucket.The work principle of the system was that:to begin with,water was supplied to double loops in constant pressure.Then,the water amount dischar- ging from the mouth of the double loops was measured using tilting bucket.Finally,the infiltration rate in different period was calculated according to dynamic water balance.The water level change in the double loops(or water- supply tank) was not measured in the process,while it was indispensable in traditional methods.In the self-de- signed means,in contrast to traditional double-loop methods,realized the flow measurement in the soil and rock in constant pressure,and improved the measure precision and the automatization.更多还原