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A platform for research: civil engineering, architecture and urbanism
Construction method of sunken drilling platform system
The invention discloses a construction method of a sunken drilling platform system. The construction method comprises the steps of planning of a construction site, positioning and lofting, first-time concrete pouring, second-time concrete pouring, construction of a steel structure platform used for cast-in-situ bored pile construction, building of a slurry circulating system, cast-in-situ bored pile construction and centralized cleaning. Existing construction areas and stratum geological conditions are fully utilized, a bearing platform foundation pit is excavated in a divided and partitioned mode, a retaining wall is arranged to form a stable pit wall, positioning of the steel casing is adjusted and positioned during construction, construction delay caused by the fact that follow-up pile foundations go wrong is avoided, pouring is conducted in sequence, and the construction efficiency is improved. A closed and stable foundation pit structure is formed by the concrete cushion layer, the portal crane track foundation and the retaining wall, it is guaranteed that no interval exists in the early-stage concrete pouring process, and repeated large-mass excavation and backfill construction are avoided.
本发明公开了一种下沉式钻孔平台系统施工方法，包括施工场地的规划，定位放样，第一次混凝土浇筑，第二次混凝土浇筑，构建用于钻孔灌注桩施工的钢结构平台，搭设泥浆循环系统以及进行钻孔灌注桩施工，集中清理；本发明充分利用现有施工区域及地层地质条件，划分并分区开挖承台基坑，设置挡墙形成稳定的坑壁，钢护筒的定位在施工时予以调整及定位，避免后续桩基出现问题而导致施工滞缓，依次进行浇筑，使混凝土垫层与门式起重机轨道基础、挡墙，形成封闭、稳固的基坑结构，保证前期浇筑混凝土时中间没有间歇，避免反复进行大体量的开挖及回填施工。
Construction method of sunken drilling platform system
The invention discloses a construction method of a sunken drilling platform system. The construction method comprises the steps of planning of a construction site, positioning and lofting, first-time concrete pouring, second-time concrete pouring, construction of a steel structure platform used for cast-in-situ bored pile construction, building of a slurry circulating system, cast-in-situ bored pile construction and centralized cleaning. Existing construction areas and stratum geological conditions are fully utilized, a bearing platform foundation pit is excavated in a divided and partitioned mode, a retaining wall is arranged to form a stable pit wall, positioning of the steel casing is adjusted and positioned during construction, construction delay caused by the fact that follow-up pile foundations go wrong is avoided, pouring is conducted in sequence, and the construction efficiency is improved. A closed and stable foundation pit structure is formed by the concrete cushion layer, the portal crane track foundation and the retaining wall, it is guaranteed that no interval exists in the early-stage concrete pouring process, and repeated large-mass excavation and backfill construction are avoided.
本发明公开了一种下沉式钻孔平台系统施工方法，包括施工场地的规划，定位放样，第一次混凝土浇筑，第二次混凝土浇筑，构建用于钻孔灌注桩施工的钢结构平台，搭设泥浆循环系统以及进行钻孔灌注桩施工，集中清理；本发明充分利用现有施工区域及地层地质条件，划分并分区开挖承台基坑，设置挡墙形成稳定的坑壁，钢护筒的定位在施工时予以调整及定位，避免后续桩基出现问题而导致施工滞缓，依次进行浇筑，使混凝土垫层与门式起重机轨道基础、挡墙，形成封闭、稳固的基坑结构，保证前期浇筑混凝土时中间没有间歇，避免反复进行大体量的开挖及回填施工。
Construction method of sunken drilling platform system
一种下沉式钻孔平台系统施工方法
SU XIAOLONG (author) / YAO YA (author) / TONG YUHUI (author) / KOU LIQIANG (author) / LIU ZIHAO (author) / LI LINSHU (author) / XU PENGFEI (author) / LI HAO (author) / YE FANGWEI (author)
2023-04-04
Patent
Electronic Resource
Chinese
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