A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foundation pit excavation safety construction method
The invention relates to a foundation pit excavation safety construction method. The method comprises the following steps that (1) a foundation pit excavation boundary line is set out on the originalground according to a construction drawing, the elevation is measured, and the excavation depth is determined; (2) a backhoe excavator is adopted to excavate the surface layer of a foundation pit, andearthwork obtained after excavation is directly transported outwards through a dumper; (3) the foundation pit is excavated layer by layer in a layered excavation mode, and the excavation depth of each layer is 1.5 - 2m; (4) slope setting is carried out on the two sides in the foundation pit excavation process, the slope gradient ranges from 60 degrees to 75 degrees, and supporting in a soil nailing wall mode is carried out on set slopes after excavation of each layer is completed; (5) bottom cleaning is carried out in cooperation with manual work when 0.2 - 0.3m is left at a foundation base;(6) cast-in-place pile construction is carried out on the foundation base; and (7) a concrete structure cushion layer is constructed on the foundation base of the foundation pit. According to the construction method, layer-by-layer excavation is carried out in a foundation pit layered excavation mode, and slope supporting is carried out in time after excavation of each layer is completed, so thatthe construction safety is improved.
本发明涉及一种基坑开挖安全施工方法。包括以下步骤，(1)在原地面按照施工图纸放出基坑开挖边界线，并测出高程，确定开挖深度；(2)采用反铲式挖掘机对基坑的面层进行开挖，开挖后得到的土方采用自卸车辆直接外运；(3)以分层开挖的方式对基坑进行逐层开挖，每层开挖的深度为1.5‑2m；(4)基坑开挖过程中在两侧放坡，坡度为60‑75°，每层开挖完毕后对放坡进行土钉墙方式的支护；(5)基底剩余0.2‑0.3m配合人工进行清底；(6)在基坑的基底进行灌注桩施工；(7)在基坑的基底进行混凝土结构垫层的施工。本发明中的施工方法通过采用基坑分层开挖的方式进行逐层开挖，并在每层开挖完毕后及时进行坡面支护，提升了施工的安全性。
Foundation pit excavation safety construction method
The invention relates to a foundation pit excavation safety construction method. The method comprises the following steps that (1) a foundation pit excavation boundary line is set out on the originalground according to a construction drawing, the elevation is measured, and the excavation depth is determined; (2) a backhoe excavator is adopted to excavate the surface layer of a foundation pit, andearthwork obtained after excavation is directly transported outwards through a dumper; (3) the foundation pit is excavated layer by layer in a layered excavation mode, and the excavation depth of each layer is 1.5 - 2m; (4) slope setting is carried out on the two sides in the foundation pit excavation process, the slope gradient ranges from 60 degrees to 75 degrees, and supporting in a soil nailing wall mode is carried out on set slopes after excavation of each layer is completed; (5) bottom cleaning is carried out in cooperation with manual work when 0.2 - 0.3m is left at a foundation base;(6) cast-in-place pile construction is carried out on the foundation base; and (7) a concrete structure cushion layer is constructed on the foundation base of the foundation pit. According to the construction method, layer-by-layer excavation is carried out in a foundation pit layered excavation mode, and slope supporting is carried out in time after excavation of each layer is completed, so thatthe construction safety is improved.
本发明涉及一种基坑开挖安全施工方法。包括以下步骤，(1)在原地面按照施工图纸放出基坑开挖边界线，并测出高程，确定开挖深度；(2)采用反铲式挖掘机对基坑的面层进行开挖，开挖后得到的土方采用自卸车辆直接外运；(3)以分层开挖的方式对基坑进行逐层开挖，每层开挖的深度为1.5‑2m；(4)基坑开挖过程中在两侧放坡，坡度为60‑75°，每层开挖完毕后对放坡进行土钉墙方式的支护；(5)基底剩余0.2‑0.3m配合人工进行清底；(6)在基坑的基底进行灌注桩施工；(7)在基坑的基底进行混凝土结构垫层的施工。本发明中的施工方法通过采用基坑分层开挖的方式进行逐层开挖，并在每层开挖完毕后及时进行坡面支护，提升了施工的安全性。
Foundation pit excavation safety construction method
一种基坑开挖安全施工方法
SHI AICHAO (author) / JI CHAO (author) / CHAI JUNHU (author) / ZHENG TIANHUA (author) / QI JUNQING (author) / GAO BINFENG (author) / GAO JIAN (author)
2020-07-28
Patent
Electronic Resource
Chinese
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