深厚软土地区某厂房基础沉降原因分析和对策

Analysis on Cause of Workshop Foundation Subsidence in Deep Thick Soft Ground Area and the Countermeasure

摘要:

某厂房由于软土排水固结和地面回填堆载产生地面沉降过大，针对各部位荷载与地质条件的不同情况，分别采用了袖阀管静压注浆和锚杆静压桩托换技术对软土地基进行加固处理，取得了良好效果。介绍了袖阀管静压注浆法和锚杆静压桩托换法的技术特点、加固机理及施工工艺。

Abstract:

Excessive land subsidence occurred because of drainage consolidation and backfill loading for soft clay foundation of a workshop, static pressure grouting with sleeve valve pipe and anchor static pressure pile underpinning technique were adopted to consolidate the soft ground foundation, and the technical features, consolidation mechanism and construction technology were introduced in this paper.