A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of single-pipe grouting bottom-expanding cast-in-place pile
The invention relates to a construction method of a single-pipe grouting bottom-expanding cast-in-place pile, and belongs to the field of cast-in-place piles. The construction method comprises the following steps that 1, a spiral pile machine is used for drilling a foundation to form a pile hole, meanwhile, wall protection slurry is poured, after a drill bit reaches a preset position, a drill rodis lifted, the bottom of the pile hole is expanded, and a pile bottom expanding part is formed; 2, the pile hole is cleaned; 3, a reinforcement cage is placed into the pile hole, and the bottom of thereinforcement cage is inserted into the pile bottom expanding part; 4, a first guide mechanism and a second guide mechanism are installed at the position, close to the pile hole, of the ground and the top of the reinforcement cage correspondingly, and a pouring guide pipe is inserted into the pile hole through the first guide mechanism and the second guide mechanism; and 5, a concrete pump is connected to the top of the pouring guide pipe, and pile forming concrete slurry is poured into the pouring guide pipe. The construction method has the effect of keeping the pouring guide pipe stable when being put down.
本申请涉及单管注浆扩底灌注桩施工方法，属于灌注桩的领域，包括以下步骤，步骤一：用螺旋桩机钻进地基，形成桩孔，同时灌入护壁泥浆，钻头到达预定位置后，提起钻杆，对桩孔底部扩底，形成桩底扩大部；步骤二：对桩孔进行清孔；步骤三：将钢筋笼置入桩孔，钢筋笼的底部插入桩底扩大部；步骤四：在地面靠近桩孔的位置和钢筋笼的顶部分别安装第一导向机构和第二导向机构，将灌注导管通过第一导向机构和第二导向机构插入桩孔；步骤五：在灌注导管的顶部连接混凝土泵送机，往灌注导管内灌注成桩混凝土浆液；本申请具有保持灌注导管下放时的稳定的效果。
Construction method of single-pipe grouting bottom-expanding cast-in-place pile
The invention relates to a construction method of a single-pipe grouting bottom-expanding cast-in-place pile, and belongs to the field of cast-in-place piles. The construction method comprises the following steps that 1, a spiral pile machine is used for drilling a foundation to form a pile hole, meanwhile, wall protection slurry is poured, after a drill bit reaches a preset position, a drill rodis lifted, the bottom of the pile hole is expanded, and a pile bottom expanding part is formed; 2, the pile hole is cleaned; 3, a reinforcement cage is placed into the pile hole, and the bottom of thereinforcement cage is inserted into the pile bottom expanding part; 4, a first guide mechanism and a second guide mechanism are installed at the position, close to the pile hole, of the ground and the top of the reinforcement cage correspondingly, and a pouring guide pipe is inserted into the pile hole through the first guide mechanism and the second guide mechanism; and 5, a concrete pump is connected to the top of the pouring guide pipe, and pile forming concrete slurry is poured into the pouring guide pipe. The construction method has the effect of keeping the pouring guide pipe stable when being put down.
本申请涉及单管注浆扩底灌注桩施工方法，属于灌注桩的领域，包括以下步骤，步骤一：用螺旋桩机钻进地基，形成桩孔，同时灌入护壁泥浆，钻头到达预定位置后，提起钻杆，对桩孔底部扩底，形成桩底扩大部；步骤二：对桩孔进行清孔；步骤三：将钢筋笼置入桩孔，钢筋笼的底部插入桩底扩大部；步骤四：在地面靠近桩孔的位置和钢筋笼的顶部分别安装第一导向机构和第二导向机构，将灌注导管通过第一导向机构和第二导向机构插入桩孔；步骤五：在灌注导管的顶部连接混凝土泵送机，往灌注导管内灌注成桩混凝土浆液；本申请具有保持灌注导管下放时的稳定的效果。
Construction method of single-pipe grouting bottom-expanding cast-in-place pile
单管注浆扩底灌注桩施工方法
ZHAO PENGFEI (author) / YIN LEI (author) / ZHOU GUO'AN (author) / WANG ZEXI (author) / ZHOU TAO (author) / FANG CHENGQUAN (author) / ZHU HONG (author) / ZHAN BING (author) / ZHANG RUI (author) / CHEN HONGMING (author)
2020-12-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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