A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method and system for underground diaphragm wall under pipeline
The invention relates to a construction system for an underground diaphragm wall under a pipeline. The construction system is characterized in that when the underground pipeline transversely penetrates through the underground diaphragm wall, a soil body under the pipeline is excavated through a cutter welded on a grab bucket of a grooving machine, grooving of the underground diaphragm wall under the pipeline is completed in cooperation with ultrasonic detection, seamless butt joint of reinforcement cages is realized through orderly lowering and precise splicing of the reinforcement cages, and finally, pipeline section underground diaphragm wall concrete is integrally poured. The method comprises the following steps that a grooving step is carried out, profile steel penetrates through a water leakage hole of the grab bucket of the grooving machine, the cutter is welded, the welding width is the same as the width of the grab bucket, the length of the cutter exceeds the range of the grab bucket, the grab bucket moves up and down to cut the soil body below the pipeline, and then the grab bucket is adopted to grab out the cut soil body; and a reinforcement cage lowering step is carried out, before the reinforcement cages are lowered, ultrasonic waves are adopted to detect the lower portion and the two side walls of the pipeline, positioning ribs are welded to the two reinforcement cages of a fishtail-shaped connector, the reinforcement cages at the fixed positions are lowered and positioned, the spliced reinforcement cages are lowered, and the reinforcement cages are moved, penetrate through the pipeline downwards and are positioned after the positioning ribs are rechecked.
本发明涉及一种管线下地下连续墙施工系统，即在地下管线横穿地下连续墙时，通过成槽机抓斗上焊接的切削刀开挖管线下方土体，配合超声波检测完成管线下方的地连墙成槽，再通过钢筋笼有序下放精准拼接实现钢筋笼无缝对接，最后整体浇筑管线段地下连续墙混凝土，包括成槽步骤，在成槽机抓斗的漏水孔里穿过型钢，焊接切削刀，焊接宽度同抓斗宽度，且削刀长度超出抓斗的范围，通过抓斗上下移动切削管线下方的土体，再采用抓斗抓出切削的土体；钢筋笼下放步骤，钢筋笼下放前，采用超声波对管线下方及两侧侧壁的检测，鱼尾型接头的两片钢筋笼上均焊接定位筋，下放固定位置的钢筋笼并定位，下放拼接的钢筋笼、移动、下穿管线，复核定位筋后定位。
Construction method and system for underground diaphragm wall under pipeline
The invention relates to a construction system for an underground diaphragm wall under a pipeline. The construction system is characterized in that when the underground pipeline transversely penetrates through the underground diaphragm wall, a soil body under the pipeline is excavated through a cutter welded on a grab bucket of a grooving machine, grooving of the underground diaphragm wall under the pipeline is completed in cooperation with ultrasonic detection, seamless butt joint of reinforcement cages is realized through orderly lowering and precise splicing of the reinforcement cages, and finally, pipeline section underground diaphragm wall concrete is integrally poured. The method comprises the following steps that a grooving step is carried out, profile steel penetrates through a water leakage hole of the grab bucket of the grooving machine, the cutter is welded, the welding width is the same as the width of the grab bucket, the length of the cutter exceeds the range of the grab bucket, the grab bucket moves up and down to cut the soil body below the pipeline, and then the grab bucket is adopted to grab out the cut soil body; and a reinforcement cage lowering step is carried out, before the reinforcement cages are lowered, ultrasonic waves are adopted to detect the lower portion and the two side walls of the pipeline, positioning ribs are welded to the two reinforcement cages of a fishtail-shaped connector, the reinforcement cages at the fixed positions are lowered and positioned, the spliced reinforcement cages are lowered, and the reinforcement cages are moved, penetrate through the pipeline downwards and are positioned after the positioning ribs are rechecked.
本发明涉及一种管线下地下连续墙施工系统，即在地下管线横穿地下连续墙时，通过成槽机抓斗上焊接的切削刀开挖管线下方土体，配合超声波检测完成管线下方的地连墙成槽，再通过钢筋笼有序下放精准拼接实现钢筋笼无缝对接，最后整体浇筑管线段地下连续墙混凝土，包括成槽步骤，在成槽机抓斗的漏水孔里穿过型钢，焊接切削刀，焊接宽度同抓斗宽度，且削刀长度超出抓斗的范围，通过抓斗上下移动切削管线下方的土体，再采用抓斗抓出切削的土体；钢筋笼下放步骤，钢筋笼下放前，采用超声波对管线下方及两侧侧壁的检测，鱼尾型接头的两片钢筋笼上均焊接定位筋，下放固定位置的钢筋笼并定位，下放拼接的钢筋笼、移动、下穿管线，复核定位筋后定位。
Construction method and system for underground diaphragm wall under pipeline
一种管线下地下连续墙施工方法及系统
SHI SUN (author) / ZHANG YINGHUI (author) / ZHANG WENXU (author) / MENG XIAOLONG (author) / HE XIANSHI (author) / LIU JIAN (author) / WANG XIAOYE (author) / SHAN DONGHUI (author) / LI BAIYANG (author)
2021-12-07
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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