Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grooving construction method for reinforcing underground diaphragm wall without groove wall in old urban area of Yangtze River beach overflowing area
The invention discloses a grooving construction method for a groove-wall-free reinforced underground diaphragm wall in an old urban area of an overtown area of Yangtze River, which comprises the following steps: S1, treating a surface unfavorable geological soil layer: carrying out plain soil layered replacement and filling on a to-be-constructed area with poor surface geology, and compacting by adopting a small road roller or an impact vibrating rammer; s2, a guide wall is manufactured, specifically, the guide wall is formed through foundation trench excavation, paying-off marking, formwork building and concrete pouring, and an upper wood brace support and a lower wood brace support are additionally arranged in the foundation trench of the guide wall; sodium bentonite is adopted for making slurry, and heavy sodium carbonate, medium-viscosity CMC and barite serve as doping materials; S4, grooving construction is conducted, specifically, grooving operation is conducted through mechanical equipment according to the grooving design depth, conditions are created for guide wall construction through surface unfavorable geological soil layer treatment, the wall protection slurry performance is improved by optimizing wall protection slurry configuration, and the construction efficiency is improved; and a measure of increasing the liquid level of the slurry is combined, so that the wall protection effect of the slurry is ensured.
本发明公开长江漫滩区域老城区无槽壁加固地下连续墙成槽施工方法，包括S1、表层不良地质土层处理：对表层地质较差的待施工区域进行素土分层换填，采用小型压路机或冲击振动夯进行压实；S2、导墙制作：通过开挖基槽、放线标记、模板搭建和混凝土浇筑成导墙，在所述导墙的基槽内加设上、下两道木枋支撑；S3、泥浆制备：泥浆采用钠基膨润土造浆，重质纯碱、中粘CMC和重晶石作为掺加材料：S4、成槽施工：根据成槽设计深度利机械设备进行成槽作业，本发明通过表层不良地质土层处理，为导墙施工创造条件，通过优化护壁泥浆配置，提高护壁泥浆性能，结合提高泥浆液面高度的措施，保证了泥浆护壁效果。
Grooving construction method for reinforcing underground diaphragm wall without groove wall in old urban area of Yangtze River beach overflowing area
The invention discloses a grooving construction method for a groove-wall-free reinforced underground diaphragm wall in an old urban area of an overtown area of Yangtze River, which comprises the following steps: S1, treating a surface unfavorable geological soil layer: carrying out plain soil layered replacement and filling on a to-be-constructed area with poor surface geology, and compacting by adopting a small road roller or an impact vibrating rammer; s2, a guide wall is manufactured, specifically, the guide wall is formed through foundation trench excavation, paying-off marking, formwork building and concrete pouring, and an upper wood brace support and a lower wood brace support are additionally arranged in the foundation trench of the guide wall; sodium bentonite is adopted for making slurry, and heavy sodium carbonate, medium-viscosity CMC and barite serve as doping materials; S4, grooving construction is conducted, specifically, grooving operation is conducted through mechanical equipment according to the grooving design depth, conditions are created for guide wall construction through surface unfavorable geological soil layer treatment, the wall protection slurry performance is improved by optimizing wall protection slurry configuration, and the construction efficiency is improved; and a measure of increasing the liquid level of the slurry is combined, so that the wall protection effect of the slurry is ensured.
本发明公开长江漫滩区域老城区无槽壁加固地下连续墙成槽施工方法，包括S1、表层不良地质土层处理：对表层地质较差的待施工区域进行素土分层换填，采用小型压路机或冲击振动夯进行压实；S2、导墙制作：通过开挖基槽、放线标记、模板搭建和混凝土浇筑成导墙，在所述导墙的基槽内加设上、下两道木枋支撑；S3、泥浆制备：泥浆采用钠基膨润土造浆，重质纯碱、中粘CMC和重晶石作为掺加材料：S4、成槽施工：根据成槽设计深度利机械设备进行成槽作业，本发明通过表层不良地质土层处理，为导墙施工创造条件，通过优化护壁泥浆配置，提高护壁泥浆性能，结合提高泥浆液面高度的措施，保证了泥浆护壁效果。
Grooving construction method for reinforcing underground diaphragm wall without groove wall in old urban area of Yangtze River beach overflowing area
长江漫滩区域老城区无槽壁加固地下连续墙成槽施工方法
PANG JINGBAO (Autor:in) / HE YI (Autor:in) / BAO CHUANG (Autor:in) / JIA ZHUANGZHUANG (Autor:in) / FAN XIAOYE (Autor:in) / QUAN YOUWEI (Autor:in) / FENG MIN (Autor:in) / XIE YI (Autor:in) / DENG XIANGZHEN (Autor:in) / XING WENKANG (Autor:in)
31.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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