软土地基注浆加固实践

Practice of Grouting Reinforcement for Soft Ground Foundation

摘要:

江南小学部田径场跑道需采取必要的加固处理措施控制沉降。根据现场情况结合经济因素综合分析，对回填层采用注浆加固，改善岩土的力学性能，恢复其整体性，使被加固对象形成整体化的固结体。通过现场实验和历时1年的沉降监测，最大沉降量为1.5 cm，沉降时间曲线显示沉降趋于稳定，证明加固效果满足工程要求。

Abstract:

According to the comprehensive analysis on the field situation and economic factors, necessary reinforcement measures were taken for a primary school playground to control the settlement by grouting reinforcement in backfilling layer in order to improve the mechanical properties of rock soil for the integrity restoration. In the field experiment and settlement monitoring for a year, the maximum settlement was only 15cm, and the settlement-time curve showed that the settlement is stable, which proved reinforcement effect satisfied the engineering requirement.