浅谈土钉墙基坑支护控制

由于土钉墙依赖于地层,所以一般只适用在地下水位不高、具有良好自立性的地层处。如果运用水位高的软土层则可能会因为自立性不足的原因,产生管涌、流砂等问题。而如果运用至冲积地层,又会由于冲积地层的构造(主要是粉质粘土),单单只运用土钉墙,无法满足基坑围护稳定、安全的需求。基于这样的原因,工程在开展时,有关工作人员需要对不同的基坑围护工程总结、实践,并在一系列的实践基础上总结出土钉墙施工的创新技术。

Research on Support Control of the Foundation Pit of Soil Nail Wall

Since the soil nail wall depends on the stratum, it is generally only suitable in the stratum with low water table and good self-reliance. If a soft soil layer with a high water level is used, problems such as piping and sand flow may occur due to insufficient independence. If it is applied to alluvial strata, it will not be able to meet the needs of stable and safe foundation pits due to the structure of alluvial strata(mainly silty clay). For this reason, when the project is carried out, the relevant staff needs to summarize and practice different foundation pit enclosure projects, and sum up the innovative technology of soil nail wall construction based on a series of practices.