The study of the structure stability simulated tests in soil-geotextile filtration system
Zhuang Yanfeng · Journal of Hydroelectric Engineering · 2006
By presenting the simulated arching formation tests and the structure stability tests of fine particle soil,the stability of the soil particle arching formation and the upper limit of the filtration opening in soil retention are analyzed and the state of fully-soil-eroding-away of the soil-geotextile filtration system is studied.The soil particles are represented by glass spheres and different graded gravel with different shape,size and number of the filtration opening.The filtration test of the fine particle soil is presented.The results show that the structure of the soil sample will keep stable enough with bigger filtration pore size because of the arching formation of the retained particles.The results provide references in using bigger pore size geotextile to void clogging in filtration design.