深基坑的传力杆式内支撑转换施工方法
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摘要
结合工程实际,在其深基坑施工中采用了传力杆式内支撑转换施工工艺,即用钢筋混凝土换撑梁传力杆代替了原有回填土和混凝土板带的换撑方式。从实践效果来看:该工艺受空间限制较小,工序简单,可缩短换撑周期,使地下主体结构能够连续施工,无需等待外墙防水施工和回填土的时间,大大节约了工期。
Combined with the engineering practice, the construction technology of the dowel bar type internal support conversion was adopted in the construction of the deep foundation pit, namely, the dowel bar of reinforced concrete support replacement beam was used to replace the original backfill soil and the concrete slab belt. From the practical effect: the process was simple and less limited by space, so that the cycle of the support replacement could be shortened, and the underground main structure could be continuously constructed without waiting for the waterproof construction of the external wall and the time of backfilling, and greatly saved the construction period.
Combined with the engineering practice, the construction technology of the dowel bar type internal support conversion was adopted in the construction of the deep foundation pit, namely, the dowel bar of reinforced concrete support replacement beam was used to replace the original backfill soil and the concrete slab belt. From the practical effect: the process was simple and less limited by space, so that the cycle of the support replacement could be shortened, and the underground main structure could be continuously constructed without waiting for the waterproof construction of the external wall and the time of backfilling, and greatly saved the construction period.
引文
[1]李树华.地下室施工中内支撑拆除的"换撑"方法[J].福建建设科技,2003(4):28-29.
[2]王爱领.郑州绿地广场超深基坑内支撑支护及换撑技术研究[J].四川建筑科学研究,2012,38(5):104-108.
[3]何跃川,董娜,陈勇力.超深基坑工程支撑拆除中换撑技术综合应用研究简[J].施工技术,2015,44(增刊1):14-17.
[4]刘伟,郝学峰,梁鹏,等.超大规模深基坑内支撑转换技术在工程中的应用[J].建筑技术,2013,44(1):9-11.
[2]王爱领.郑州绿地广场超深基坑内支撑支护及换撑技术研究[J].四川建筑科学研究,2012,38(5):104-108.
[3]何跃川,董娜,陈勇力.超深基坑工程支撑拆除中换撑技术综合应用研究简[J].施工技术,2015,44(增刊1):14-17.
[4]刘伟,郝学峰,梁鹏,等.超大规模深基坑内支撑转换技术在工程中的应用[J].建筑技术,2013,44(1):9-11.