厂房内重型冲床基础沉箱防护工程综合处理技术

Comprehensive Treatment Technology of Caisson Protection Engineering for the Foundation of Heavy Punch in Workshop

在长春拖拉机厂重型冲床基础沉箱防护工程中,由于在沉箱过程中采用的地下降水措施不当,出现厂房墙体开裂、倒塌、墙体损害程度严重等问题。通过详细的分析与研究,制定出切实可行处理方案,采用降水、注水、托换和变形观测等综合手段,有效地控制了不均匀沉降,沉箱顺利完成。经过观测和综合评价,效果好,具有推广价值。介绍了该沉箱防护工程中的综合处理技术。

In the caisson protection engineering for a heavy punch in Changchun tractor factory,because of the former improper underground dewatering measures,the workshop wall cracking and collapsing occurred.By the serious analysis and study,a treatment plan of comprehensive treatment with dewatering,water injection,underpinning and deformation observation were made,the uneven settlement was effectively controlled with successful caisson lowering.Through the observation and comprehensive evaluation,the technology showed its good effect.The paper introduced the comprehensive treatment technology in this caisson protection engineering.