A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foundation pit support construction process
The invention relates to a foundation pit support construction process includes the steps that S1, a site is leveled, and pile positions are measured and positioned; S2, pile casings are embedded in the pile positions; S3, drilling is conducted, specifically, slurry is injected into the pile casings before drilling, then a rotary drilling rig is adopted for drilling in the ground, and the slurry is continuously injected into a drilled hole along with the continuous increase of the depth of the drilled hole; S4, hole forming inspection and hole cleaning are conducted, the hole depth, the hole diameter, the perpendicularity, the sedimentation concentration, the sediment depth and the like are tested and inspected, and sediment at a hole bottom is cleaned; S5, a reinforcement cage is hoisted, and the reinforcement cage is slowly inserted into the drill hole by adopting a crane; and S6, concrete pouring is conducted, pouring is conducted through a steel guide pipe, and an opening and closing assembly is arranged at the lower end of the guide pipe. The foundation pit support construction process has the effects that the influence on concrete during pouring is reduced, and the quality of a cast-in-place pile is improved.
本申请涉及一种基坑围护施工工艺，包括以下步骤：S1、场地进行平整，桩位测量定位；S2、桩位埋设护筒；S3、钻孔，钻孔前先向护筒内注入泥浆，然后采用旋挖钻机在地面钻孔，随着钻孔深度的不断增加，持续向钻孔内注入泥浆；S4、成孔检查和清孔，对孔深、孔径、垂直度、沉降浓度和沉渣深度等进行测试检查，对孔底的沉渣进行清理；S5、钢筋笼吊装，采用吊车将钢筋笼缓缓插入到钻孔内；S6、混凝土灌注，采用钢导管进行灌注，导管的下端部设置有启闭组件。本申请具有减少混凝土在灌注时所受到的影响，提高灌注桩质量的效果。
Foundation pit support construction process
The invention relates to a foundation pit support construction process includes the steps that S1, a site is leveled, and pile positions are measured and positioned; S2, pile casings are embedded in the pile positions; S3, drilling is conducted, specifically, slurry is injected into the pile casings before drilling, then a rotary drilling rig is adopted for drilling in the ground, and the slurry is continuously injected into a drilled hole along with the continuous increase of the depth of the drilled hole; S4, hole forming inspection and hole cleaning are conducted, the hole depth, the hole diameter, the perpendicularity, the sedimentation concentration, the sediment depth and the like are tested and inspected, and sediment at a hole bottom is cleaned; S5, a reinforcement cage is hoisted, and the reinforcement cage is slowly inserted into the drill hole by adopting a crane; and S6, concrete pouring is conducted, pouring is conducted through a steel guide pipe, and an opening and closing assembly is arranged at the lower end of the guide pipe. The foundation pit support construction process has the effects that the influence on concrete during pouring is reduced, and the quality of a cast-in-place pile is improved.
本申请涉及一种基坑围护施工工艺，包括以下步骤：S1、场地进行平整，桩位测量定位；S2、桩位埋设护筒；S3、钻孔，钻孔前先向护筒内注入泥浆，然后采用旋挖钻机在地面钻孔，随着钻孔深度的不断增加，持续向钻孔内注入泥浆；S4、成孔检查和清孔，对孔深、孔径、垂直度、沉降浓度和沉渣深度等进行测试检查，对孔底的沉渣进行清理；S5、钢筋笼吊装，采用吊车将钢筋笼缓缓插入到钻孔内；S6、混凝土灌注，采用钢导管进行灌注，导管的下端部设置有启闭组件。本申请具有减少混凝土在灌注时所受到的影响，提高灌注桩质量的效果。
Foundation pit support construction process
一种基坑围护施工工艺
DU HANWEN (author) / FEI ZHONGJUN (author) / WANG ZHEN (author) / SU SHIKANG (author) / ZHANG GUOXIN (author) / SHAO GUOQIANG (author)
2021-06-11
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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