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Position: Home > Articles > The main forms and stability of terraced walls build with polypropylene geotextile bags Journal of China Agricultural University 2015,20 (2) 201-206

PP织物袋梯田筑坎破坏形式与稳定性分析

作  者:
李光录;高霞;刘馨
单  位:
勉县水土保持工作站;西北农林科技大学资源环境学院
关键词:
PP织物袋;梯田;垮坎形式;稳定性;陕南秦巴山区
摘  要:
为解决陕南秦巴山区梯田垮坎的实际问题,采用理论计算的方法,对PP织物袋不同筑坎型式的抗滑稳定性、抗倾覆稳定性和抗剪强度进行了分析,结果显示:1)单坎型PP织物袋梯田田坎,坎坡α≥75°时,坎高控制在1.6m以下;60°<α<75°时,坎高应控制在1.8m以下;α≤60°时,可以修筑2m坎高。2)L坎型PP织物袋梯田田坎,坎坡α≥85°以上时,坎高应控制于1.8m以下;坎坡80°≤α<85°时,坎高应控制于1.6m以下;α<80°时,应以2m为宜。3)反坡L型PP织物袋梯田田坎,坎坡α≥85°以上时,坎高应控制在1.8m以下;坎坡α<85°时,坎高应以2m为宜。
译  名:
The main forms and stability of terraced walls build with polypropylene geotextile bags
作  者:
LI Guang-lu;GAO Xia;Liu Xing;College of resources and environment,Northwest A&F University;Water and soil conservation station of Mianxian;
关键词:
polypropylene geotextile bags;;terrace;;terrace wall form;;stability;;Qinba mountains
摘  要:
In order to solve the collapse problem of terrace in Qinba Mountains of southern Shaanxi Province,the sliding stability,stability against overturning and shearing strength were theoretically evaluated on the different building ridge types with polypropylene geotextile bags.The results showed that.1)The suitable heights of inclined terrace wall built with polypropylene geotextile bags should be lower than 1.6m,1.8m and 2.0m at the slopes of≥75°,60°-75°,≤60°respectively.2)The suitable heights of L-shaped terrace wall of polypropylene geotextile bags should be controlled below 1.8m,1.6mand 2.0mat the slopes of≥85°,80°-85°,≤80°respectively.3)The wall heights of L-shaped with notched sill should be controlled below 1.8and 2.0mat the slopes>85°and <85°respectively.

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