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某河道装配式挡土墙纠偏和加固设计

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装配式挡土墙出现的病害特征主要是墙身倾斜变形,连接处发生分离开裂.以东北某河道装配式挡土墙的病害治理为例,分析得出:装配式挡土墙发生倾斜变形的内因是挡土墙自身刚度较小和墙后填土范围较大,外因是墙后填土雨水入渗.针对装配式挡土墙病害特征,遵循维持原貌,经济安全的原则,对倾斜变形的挡土墙挡板采取了钢丝绳张拉纠偏,墙后浇筑混凝土墩和挡板连接处重新浇筑的加固措施.在纠偏加固后,挡土墙经历了夏季暴雨和冬季冻胀的考验,后期监测数据表明挡土墙未发生变形.
A Riverside Prefabricated Retaining Wall Tilting Mitigation and Reinforcement Design
One of the hazards of the fabricated retaining wall is characterized by the tilting and the deformation of wall and the separation as well as the cracking at connections.For the hazard of this type of retaining wall,it can be mitigated by repairing the connection between the wall and the foundation.The potential causes of the tilting of a riverside prefabricated retaining wall are evaluated.The possible inner causes are the small stiffness of the retaining wall and the large areas of the backfill behind the wall.Whereas.the probable external causes are the rainwater infiltration into the backfill behind the wall.Based on the de-formation characteristics of the prefabricated retaining wall,and the principle of maintaining the original appearance,economy and safety are considered to mitigate and reinforce the retaining wall.After the tilting correction and the reinforcement,the af-ter construction monitoring data shows that the retaining wall has no deformation in the rainy season and winter.

Prefabricated Retaining WallStructure Tilting MitigationReinforcement

王旭

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辽宁省建筑设计研究院岩土工程有限责任公司,沈阳 110025

装配式挡土墙 纠偏 加固

2024

土工基础
湖北省土木建筑学会,中国科学院武汉岩土力学研究所,武汉市土木建筑学会

土工基础

影响因子:0.238
ISSN:1004-3152
年,卷(期):2024.38(4)