摘要
某挡土墙墙底存在软弱下卧层,地基承载力和地基土层提供的水平向抗滑力不足,挡土墙整体稳定性不足,挡土墙及墙顶土体出现明显下沉,墙顶填土出现了明显的裂缝和拉裂,墙身出现了斜裂缝,局部区域鼓起脱落,挡土墙有向外偏移滑动迹象。采取了在既有挡土墙墙面外侧设立板,在立板外侧设扶壁,在其下设底板,在底板下设排桩,在底板上设锚杆,再辅以疏通截排水的加固方法。结果表明:桩承背靠式挡土墙+锚杆的加固方案可以有效解决挡土墙墙身开裂、鼓起,墙体倾斜、滑移、软弱地基土承载力不足和土体深层滑动的问题。
There is a weak underlying layer at the bottom of a retaining wall,the foundation bearing capacity and the horizontal anti-sliding force provided by the foundation soil layer are insufficient,the overall stability of the retaining wallis insufficient,the soil of the retaining wall and the top of the wall have obvious subsidence,the fill of the top of the wall has obvious cracks and tension cracks,the wall body has inclined cracks,local areas bulge and fall off,and the retaining wall has signs of outward migration and sliding.The reinforcement method is adopted to set up the board on the outside of the existing retaining wall,set up the buttress on the outside of the vertical plate,set up the bottom plate,set up the row pile under the bottom plate,set up the anchor rod on the bottom plate,and supplemented by dredging the cut water.The results show that the reinforcement scheme of pile-backed retaining wall and anchor rod can effectively solve the problems of wall cracking and bulging,wall tilting and sliding,insufficient bearing capacity of weak soil and deep sliding of soil.
出处
《福建建设科技》
2025年第1期50-54,62,共6页
Fujian Construction Science & Technology
关键词
既有挡土墙
失稳
加固
existing retaining wall
instability
reinforce
作者简介
吴燕泉(1988-),男,硕士,高级工程师,研究方向:岩土工程勘察、设计和监测等。
