A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of long spiral drilling and grouting method pile
The invention discloses a long spiral drilling and grouting construction method pile for foundation pit supporting, which comprises the following steps: calculating and selecting the pile diameter, pile spacing, pile length and reinforcement parameters of a required reinforced concrete pile according to the foundation pit depth, geological conditions and surrounding environment of a project; calculating and selecting the required profile steel type, model, size, pore-forming grouting diameter and grouting ratio through equal-rigidity substitution; a long spiral drilling machine is driven to drill to the pile bottom, and then cement paste or composite cement paste is poured to the pile top while a drill rod is lifted; inserting section steel; and after the foundation pit is backfilled, the profile steel is pulled out and recycled. The cast-in-place pile has the beneficial effects that compared with a reinforced concrete enclosure cast-in-place pile, the cement paste or the composite cement paste replaces concrete, insertion of a rib body can be facilitated, and the manufacturing cost can be saved; the profile steel replaces a reinforcement cage, the procedures of reinforcement cage manufacturing, sectional welding and the like are omitted, the profile steel can be recycled and is environmentally friendly, and the manufacturing cost is saved.
本发明公开了一种用于基坑支护的长螺旋钻孔压浆工法桩，包括：根据工程的基坑深度、地质条件、周边环境，计算选择所需采用钢筋混凝土桩的桩径、桩间距、桩长、配筋参数；通过等刚度代换，计算并选择所需的型钢类型、型号、尺寸和成孔注浆直径、注浆配比；驱动长螺旋钻机，钻进至桩底后边提升钻杆边灌注水泥浆或复合水泥浆至桩顶；插入型钢；基坑回填后对型钢进行拔除回收。本发明的有益效果是，与钢筋混凝土围护灌注桩相比，水泥浆或复合水泥浆代替了混凝土，可便于筋体的插入和节约造价；型钢代替了钢筋笼，省去了钢筋笼制作和分节焊接等工序，型钢可回收，绿色环保，节约造价。
Construction method of long spiral drilling and grouting method pile
The invention discloses a long spiral drilling and grouting construction method pile for foundation pit supporting, which comprises the following steps: calculating and selecting the pile diameter, pile spacing, pile length and reinforcement parameters of a required reinforced concrete pile according to the foundation pit depth, geological conditions and surrounding environment of a project; calculating and selecting the required profile steel type, model, size, pore-forming grouting diameter and grouting ratio through equal-rigidity substitution; a long spiral drilling machine is driven to drill to the pile bottom, and then cement paste or composite cement paste is poured to the pile top while a drill rod is lifted; inserting section steel; and after the foundation pit is backfilled, the profile steel is pulled out and recycled. The cast-in-place pile has the beneficial effects that compared with a reinforced concrete enclosure cast-in-place pile, the cement paste or the composite cement paste replaces concrete, insertion of a rib body can be facilitated, and the manufacturing cost can be saved; the profile steel replaces a reinforcement cage, the procedures of reinforcement cage manufacturing, sectional welding and the like are omitted, the profile steel can be recycled and is environmentally friendly, and the manufacturing cost is saved.
本发明公开了一种用于基坑支护的长螺旋钻孔压浆工法桩，包括：根据工程的基坑深度、地质条件、周边环境，计算选择所需采用钢筋混凝土桩的桩径、桩间距、桩长、配筋参数；通过等刚度代换，计算并选择所需的型钢类型、型号、尺寸和成孔注浆直径、注浆配比；驱动长螺旋钻机，钻进至桩底后边提升钻杆边灌注水泥浆或复合水泥浆至桩顶；插入型钢；基坑回填后对型钢进行拔除回收。本发明的有益效果是，与钢筋混凝土围护灌注桩相比，水泥浆或复合水泥浆代替了混凝土，可便于筋体的插入和节约造价；型钢代替了钢筋笼，省去了钢筋笼制作和分节焊接等工序，型钢可回收，绿色环保，节约造价。
Construction method of long spiral drilling and grouting method pile
一种长螺旋钻孔压浆工法桩的施工工法
ZHANG LI (author) / HUANG ZHENBO (author) / HAN ZHAO (author) / ZHANG MING (author) / ZHU ZHENGXING (author) / CHEN XIE (author) / PAN YUFANG (author)
2022-08-09
Patent
Electronic Resource
Chinese
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