土岩地层超深基坑结构反向对接施工技术.pdf
文档页数：5文档大小：2.15MB文档格式：pdf2016年9月上 施工技术 第45卷第17期 CONSTRUCTION TECHNOLOGYDo:10.7672/sgjs2016170035 土岩地层超深基坑结构反向对接施工技术 施群凯,杨前,范作锋,王乾,丁丽祯 (中国二十冶集团有限公司,上海201901) 摘要]随着国家建设事业的不断发展,建设区域所处位置的地质条件与周围环境条件越来越复杂,在近年来承建 的多项超深基坑工程项目中,施工区域所处环境复杂,所建工程需进行半开挖、半爆破施工。而且位于基坑下半部 的岩层内岩溶裂隙发育,岩层内含有大量岩溶裂隙水,对施工的安全及环境影响保护要求极高。以南钢宽厚板工 程旋流池基坑为例,针对工程中所遇到的技术难题及今后深基坑专业发展趋势进行了总结。 关键词]超深基坑;反向对接;爆破防护;施工技术 【中图分类号】TU753 文献标识码]A 文章编号]1002-8498(2016)17-0035-05 Reverse Docking Construction Technology of Ultra-deep FoundationExcavation Structures in Soil-rock StratumShi Qunkai ,Yang Qian ,Fan Zuofeng ,Wang Qian ,Ding LizhenChina MCC20 Group Co .Ltd .Shanghai 201901 ,China ) Abstract :Along with the continuous development of the state construction ,geographic conditions ofconstruction areas and their surrounding environmental conditions bee more and more plex .In thefew ultra-deep foundation excavation projects constructed in recent years ,the circumstances of theconstruction areas were plicated that the projects had to be carried out by the bination ofexcavation and blasting .Besides ,the karst fissure development of the rock strata at the lower part of thefoundation excavation and the plenty of karst fissure water wi...
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