摘要
基于FLAC3D数值模拟,对益阳鱼形山水库周边浸水路基边坡在天然状态、普通植被混凝土状态以及六角砖支护下边坡变形情况进行了对比分析,发现该路基边坡虽在常水位下处于稳定状态,但在内涝时期边坡安全系数过小,有发生滑坡坍塌的危险;在采用六角砖防护时,安全系数有一定幅度的增加,坡体内浸润线均有效降低,并小于内涝水位。
Herein the deformation of slope along the soaking subgrade surrounding Yuxingshan Reservoir, Yiyang, in natural, general vegetation-concrete, and hexagonal brick supporting conditions were compared and analyzed depending on FLAC3D numerical simulation. It was found that the slope has too small safety factor in the period of waterlogging with the risk of landslide collapse, though it is stable under normal water level;if protected by hexagonal brick, the safety factor increases to certain extent and the phreatic line in the slope is decreased and lower than the level of waterlogging.
作者
李志华
孔君
李安帮
王述红
周冕
齐龙
LI Zhihua;KONG Jun;LI Anbang;WANG Shuhong;ZHOU Mian;QI Long(CCFEB Civil Engineering Co., Ltd., Yiyang 413000, Hunan, China;School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China)
出处
《路基工程》
2019年第3期25-29,共5页
Subgrade Engineering
基金
国家自然科学基金资助项目(51474050,U1602232)
中央高校基本科研业务专项资金资助(N17010829)
辽宁省自然科学基金项目(20170540304,20170520341)
关键词
富水路基
稳定性
六角砖
护坡
数值模拟
subgrade in rich water area
stability
hexagonal brick
slope protection
numerical simulation
