某教师公寓项目管涌及流砂处理综合施工技术应用

Application of Comprehensive Construction Technology for Pipe Spillway and Flow Sand Treatment in Teachers' Apartment Project

天津地区地下水位高,承压水水头高,土体含水量大,且部分区域临近海河,基坑内经常发生管涌、流砂现象,导致地下水渗入,造成基坑浸水、边坡失稳、地基土强度降低,同时增加土的自身压力,导致周围建筑物、构筑物沉降。文章通过采用杉木桩、钢沉井、双液注浆、坑内降水等综合措施,有效对天津工业大学教师公寓项目管涌、流砂现象进行治理。

Tianjin,the groundwater level is high, the water head is high, the soil water content is large,and some areas near the Haihe River, the pit often occurs in the pipeline, flow sand phenomenon, leading to groundwater infiltration, resulting in foundation pit flooding, slope instability,Reduce,while increasing the pressure of their own soil, resulting in the surrounding buildings, structures settling. This paper effectively adopts the comprehensive measures of using Chinese fir piles, steel sinking,double liquid grouting and precipitation in the pit to effectively manage the piping and flow sand phenomenon of the teachers＇ apartment project of Tianjin University of Technology.