建筑基坑土钉墙作用机理及施工技术管理

Function mechanism and construction technology management of soil nailing wall in building foundation pit

摘要:

建筑基坑土钉墙是具有自身变形协调能力的复合受力体，其受力变形类似于重力式挡土墙，复合体的内部整体稳定性由土钉和原位土体的作用来维持，土钉支护结构的外部整体稳定性由土钉复合体来维持。本文结合工程实例对土钉墙支护主要施工工序的技术要点进行总结，从作用机理出发系统地总结了土钉墙施工和服役期的技术管理重点，对类似工程具有积极的借鉴意义。

Abstract:

The soil nailing wall of building foundation pit is a compound force body with its own deformation coordination ability, its stress deformation is similar to the gravity retaining wall, the internal stability of the compound body is maintained by the action of soil nailing and in-situ soil mass, the external stability of the soil-nailing structure is maintained by the soil-nailing composite. Based on the engineering practice, this paper summarizes the main technical points of the construction procedure of the soil nailing wall, and systematically summarizes the key points of the technical management of the construction and service period of the soil nailing wall from the action mechanism, it has positive reference significance for similar projects.