摘要
基于黄土坡地地质灾害的认识,结合运动学理论与方法,设计一套简易试验装置,对水在非饱和离石黄土中的入渗、富集规律进行初步探讨。试验系统包含降雨、渗流、富集、径流等部分,可较好地模拟大气降水、灌溉水径流、下渗、富集的整个渗透过程。对典型离石黄土进行不同雨强(15 mm、50 mm、70 mm)的降雨入渗模拟试验,得到典型离石黄土的降雨入渗参数(入渗面时态曲线、入渗速率时态曲线)与富集参数(富集量时态曲线、富集速率时态曲线),对于黄土坡地地质灾害致灾机理研究具有一定的启示。
Based on knowledge of geological disasters, the paper builds a set of test equipment to make research on water infil-tration and enrichment regularities in unsaturative loess of Lishi. The test system, which consists of rainfall, seepage, enrichment and runoff, will provide fairly accurate simulation of the process of precipitation and irrigation water infiltration. In the test, the pa-per gets the infiltration coefficient and enrichment coefficient which will be a great help for further study on mechanism of geological disasters in loess area.
出处
《地下水》
2014年第1期18-20,共3页
Ground water
关键词
离石黄土
降雨入渗
富集
试验研究
LiShi loess
rainfall infiltration
enrichment
experimental study
