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A platform for research: civil engineering, architecture and urbanism
Construction method for two-core expanded pile anchor foundation pit supporting structure
The invention provides a construction method for a two-core expanded pile anchor foundation pit supporting structure, which belongs to the technical field of supporting construction. The constructionmethod comprises the following steps: performing supporting pile construction at one side, close to a foundation pit to be excavated, of a supporting pit, and performing anchor rod construction at oneside, close to a protective slope, of the supporting pit; separately connecting a first crown beam reinforcing steel bar and a second crown beam reinforcing steel bar onto the anchor rod and a main rib of the supporting pile; after pouring is accomplished, establishing an earth retaining wall which is arranged in a length direction of the second crown beam reinforcing steel bar, on the basis of an earth retaining wall reinforcing steel bar; and constructing reinforcement ground on the top of backfilled earth, and arranging the reinforcement ground and the earth retaining wall at the same height as a temporary construction road. Compared with a conventional supporting structure, the construction method for the two-core expanded pile anchor foundation pit supporting structure greatly savesconcrete usage amount and reinforcement usage amount; moreover, the temporary road is established at the outer side of the foundation pit to be excavated; and after foundation pit excavation is accomplished, once dismounting only needs, so that construction cost is reduced, a construction period is shortened, and construction production efficiency is improved.
本发明提供了双芯扩体桩锚基坑支护结构施工方法，属于支护施工技术领域，包括：在支护坑靠近待挖基坑的一侧进行支护桩施工，在支护坑靠近护坡的一侧进行锚杆施工。将第一冠梁钢筋和第二冠梁钢筋分别连接在锚杆和支护桩的主筋上；在浇筑完成后，在挡墙钢筋的基础上建造沿第二冠梁钢筋长度方向设置的挡土墙。在回填土的顶部施工配筋地面，配筋地面与挡土墙同高度且共同作为临时施工道路。本发明提供的双芯扩体桩锚基坑支护结构施工方法对于传统的支护结构大量节约了混凝土用量和钢筋用量，并且临时道路修建在待挖基坑的外侧，当基坑开挖完成后，仅需要拆除一次即可，降低了施工成本，缩短了工期，提高了施工生产效率。
Construction method for two-core expanded pile anchor foundation pit supporting structure
The invention provides a construction method for a two-core expanded pile anchor foundation pit supporting structure, which belongs to the technical field of supporting construction. The constructionmethod comprises the following steps: performing supporting pile construction at one side, close to a foundation pit to be excavated, of a supporting pit, and performing anchor rod construction at oneside, close to a protective slope, of the supporting pit; separately connecting a first crown beam reinforcing steel bar and a second crown beam reinforcing steel bar onto the anchor rod and a main rib of the supporting pile; after pouring is accomplished, establishing an earth retaining wall which is arranged in a length direction of the second crown beam reinforcing steel bar, on the basis of an earth retaining wall reinforcing steel bar; and constructing reinforcement ground on the top of backfilled earth, and arranging the reinforcement ground and the earth retaining wall at the same height as a temporary construction road. Compared with a conventional supporting structure, the construction method for the two-core expanded pile anchor foundation pit supporting structure greatly savesconcrete usage amount and reinforcement usage amount; moreover, the temporary road is established at the outer side of the foundation pit to be excavated; and after foundation pit excavation is accomplished, once dismounting only needs, so that construction cost is reduced, a construction period is shortened, and construction production efficiency is improved.
本发明提供了双芯扩体桩锚基坑支护结构施工方法，属于支护施工技术领域，包括：在支护坑靠近待挖基坑的一侧进行支护桩施工，在支护坑靠近护坡的一侧进行锚杆施工。将第一冠梁钢筋和第二冠梁钢筋分别连接在锚杆和支护桩的主筋上；在浇筑完成后，在挡墙钢筋的基础上建造沿第二冠梁钢筋长度方向设置的挡土墙。在回填土的顶部施工配筋地面，配筋地面与挡土墙同高度且共同作为临时施工道路。本发明提供的双芯扩体桩锚基坑支护结构施工方法对于传统的支护结构大量节约了混凝土用量和钢筋用量，并且临时道路修建在待挖基坑的外侧，当基坑开挖完成后，仅需要拆除一次即可，降低了施工成本，缩短了工期，提高了施工生产效率。
Construction method for two-core expanded pile anchor foundation pit supporting structure
双芯扩体桩锚基坑支护结构施工方法
WEI AIYUAN (author) / CAO WEICUN (author) / XU HONGRUI (author) / XIA CHUNLIANG (author) / ZHOU PENG (author) / WU ANMING (author) / DU BINBIN (author) / LI YANFENG (author)
2020-08-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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