大型基坑工程中的局部深坑土方开挖技术及支撑体系的优化

Optimization of Partial Deep Pit Earth Excavation Technology and Support System in Large Foundation Pit Engineering

基坑挖土及底板浇筑是大型深基坑工程的重要部分,其施工质量高低直接影响基坑的稳定与安全。结合具体工程,介绍了深基坑局部深坑土方开挖及支撑体系的优化措施,工程实践验证了这些优化措施既节约了工期,又产生了可观的经济效益,其经验可为其他同类工程提供借鉴。

Foundation excavation and bottom slab concreting are important parts of large-scale deep foundation pit engineering, good or poor construction quality directly affects the stability and safety of foundation pit. Combined with specific engineering, optimization measures of partial deep pit earth excavation and support system in deep foundation pit has been introduced,and the engineering practice proved that these optimization measures not only saved construction period but also created considerable economic benefits, these experience can provide references for other similar projects.