Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for controlling grooving perpendicularity of ultra-deep underground diaphragm wall
An ultra-deep underground diaphragm wall grooving perpendicularity control construction method comprises the following steps that S1, guide wall construction is conducted, specifically, (1) a guide wall is built firstly; (2) measuring and positioning by adopting a total station; (3) binding reinforcing steel bars; (4) mounting a template; (5) hanging a plumb bob, and measuring the length of the plumb bob and the horizontal distance of the plumb bob extending out of the template; s2, positioning and measuring the grab bucket of the trenching machine; s3, ultrasonic perpendicularity detection: (1) groove section depth detection; (2) detecting the perpendicularity of the wall surface and the end surface of the groove section; (3) grooving quality evaluation; and (4) in the grooving process, after each grabbing is finished, an ultrasonic side wall instrument is adopted for detecting the groove wall, downward digging is stopped immediately when the perpendicularity exceeds 0.3%, and downward digging can be conducted again after deviation correction is finished and the perpendicularity meets the design requirement. According to the construction method, the underground diaphragm wall grooving perpendicularity is effectively controlled, and the problems that due to the fact that the grooving perpendicularity deviation is too large, a reinforcement cage is difficult to put down, and collapse is caused due to the fact that the reinforcement cage scratches the groove wall are solved.
一种超深地下连续墙成槽垂直度控制施工方法，包括以下步骤：S1：导墙施工：(1)先砌筑导墙；(2)采用全站仪进行测量定位；(3)绑扎钢筋；(4)安装模板；(5)吊挂垂球，测量锤球长度及探出模板的水平距离；S2：成槽机抓斗定位测量；S3：超声波垂直度检测：(1)槽段深度检测；(2)槽段壁面及槽段端面垂直度检测；(3)成槽质量评定；(4)成槽过程中，每一抓结束后，采用超声波侧壁仪对槽壁进行检测，发现垂直度超过3‰立即停止下挖，纠偏结束垂直度满足设计要求后，方可再次进行下挖。本发明的施工方法，使地连墙成槽垂直度得到了有效的控制，解决因成槽垂直度偏差过大造成的钢筋笼下放困难、钢筋笼刮伤槽壁造成塌方等问题。
Construction method for controlling grooving perpendicularity of ultra-deep underground diaphragm wall
An ultra-deep underground diaphragm wall grooving perpendicularity control construction method comprises the following steps that S1, guide wall construction is conducted, specifically, (1) a guide wall is built firstly; (2) measuring and positioning by adopting a total station; (3) binding reinforcing steel bars; (4) mounting a template; (5) hanging a plumb bob, and measuring the length of the plumb bob and the horizontal distance of the plumb bob extending out of the template; s2, positioning and measuring the grab bucket of the trenching machine; s3, ultrasonic perpendicularity detection: (1) groove section depth detection; (2) detecting the perpendicularity of the wall surface and the end surface of the groove section; (3) grooving quality evaluation; and (4) in the grooving process, after each grabbing is finished, an ultrasonic side wall instrument is adopted for detecting the groove wall, downward digging is stopped immediately when the perpendicularity exceeds 0.3%, and downward digging can be conducted again after deviation correction is finished and the perpendicularity meets the design requirement. According to the construction method, the underground diaphragm wall grooving perpendicularity is effectively controlled, and the problems that due to the fact that the grooving perpendicularity deviation is too large, a reinforcement cage is difficult to put down, and collapse is caused due to the fact that the reinforcement cage scratches the groove wall are solved.
一种超深地下连续墙成槽垂直度控制施工方法，包括以下步骤：S1：导墙施工：(1)先砌筑导墙；(2)采用全站仪进行测量定位；(3)绑扎钢筋；(4)安装模板；(5)吊挂垂球，测量锤球长度及探出模板的水平距离；S2：成槽机抓斗定位测量；S3：超声波垂直度检测：(1)槽段深度检测；(2)槽段壁面及槽段端面垂直度检测；(3)成槽质量评定；(4)成槽过程中，每一抓结束后，采用超声波侧壁仪对槽壁进行检测，发现垂直度超过3‰立即停止下挖，纠偏结束垂直度满足设计要求后，方可再次进行下挖。本发明的施工方法，使地连墙成槽垂直度得到了有效的控制，解决因成槽垂直度偏差过大造成的钢筋笼下放困难、钢筋笼刮伤槽壁造成塌方等问题。
Construction method for controlling grooving perpendicularity of ultra-deep underground diaphragm wall
一种超深地下连续墙成槽垂直度控制施工方法
ZHANG FEI ( Autor:in ) / SUN HUI ( Autor:in ) / GUO XIAOMING ( Autor:in ) / QIN ZHAOFENG ( Autor:in ) / LIU HAIWEI ( Autor:in ) / YAO HUANXI ( Autor:in ) / LIU QIANG ( Autor:in ) / LEI CHAO ( Autor:in ) / YANG WEILIANG ( Autor:in ) / ZHANG BO ( Autor:in )
30.01.2024
Patent
Elektronische Ressource
Chinesisch
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