Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for grooving underground diaphragm wall under low clearance
The invention discloses a method for grooving an underground diaphragm wall under low clearance, and relates to the technical field of subway station construction, the method comprises the following steps: S1, guide wall construction; s2, slurry preparation: firstly, preparing a CMC solution; then slurry stirring is conducted, after 1/3 of water is added into a stirring barrel, a stirring machine is started, bentonite and sodium carbonate liquid are added while water is continuously added into a quantitative water tank, stirring is conducted for 3 min, then CMC liquid is added, stirring continues to be conducted, and stirred slurry is obtained and subjected to standing for 24 h or longer; s3, grooving construction is conducted, specifically, after guide wall construction is completed, a grooving machine with the grab bucket with the maximum lifting height being 2 m is adopted, unit construction groove sections are excavated through a hole jumping excavation method, and an excavator is arranged for soil loading; s4, wall brushing; and S5, hole cleaning and slurry changing. The trenching machine with the maximum lifting height of the grab bucket being 2 m is adopted, the problem that the clearance height is insufficient is solved, and by means of the slurry manufacturing method, the time for maintaining the performance of slurry is prolonged, and the construction quality can be guaranteed.
本发明公开了一种用于低净空下的地连墙成槽的方法，涉及地铁车站施工技术领域，包括如下步骤，S1：导墙施工；S2：泥浆制作，首先制备CMC液；然后进行泥浆搅拌，在搅拌筒中加入1/3的水后开启搅拌机，在定量水箱不断加水同时，加入膨润土、纯碱液，搅拌3min后，加入CMC液继续搅拌，得到搅拌好的泥浆静置≥24h；S3：成槽施工，在导墙施工完成后，采用抓斗最大提升高度为2m的成槽机，以“跳孔挖掘法”挖成单元施工槽段，且配备挖机进行装土；S4：刷壁；S5：清孔换浆。本发明采用抓斗最大提升高度为2m的成槽机，解决了净空高度不足的问题，且利用本发明中泥浆制作的方法，延长了泥浆保持性能的时间，可保证施工质量。
Method for grooving underground diaphragm wall under low clearance
The invention discloses a method for grooving an underground diaphragm wall under low clearance, and relates to the technical field of subway station construction, the method comprises the following steps: S1, guide wall construction; s2, slurry preparation: firstly, preparing a CMC solution; then slurry stirring is conducted, after 1/3 of water is added into a stirring barrel, a stirring machine is started, bentonite and sodium carbonate liquid are added while water is continuously added into a quantitative water tank, stirring is conducted for 3 min, then CMC liquid is added, stirring continues to be conducted, and stirred slurry is obtained and subjected to standing for 24 h or longer; s3, grooving construction is conducted, specifically, after guide wall construction is completed, a grooving machine with the grab bucket with the maximum lifting height being 2 m is adopted, unit construction groove sections are excavated through a hole jumping excavation method, and an excavator is arranged for soil loading; s4, wall brushing; and S5, hole cleaning and slurry changing. The trenching machine with the maximum lifting height of the grab bucket being 2 m is adopted, the problem that the clearance height is insufficient is solved, and by means of the slurry manufacturing method, the time for maintaining the performance of slurry is prolonged, and the construction quality can be guaranteed.
本发明公开了一种用于低净空下的地连墙成槽的方法，涉及地铁车站施工技术领域，包括如下步骤，S1：导墙施工；S2：泥浆制作，首先制备CMC液；然后进行泥浆搅拌，在搅拌筒中加入1/3的水后开启搅拌机，在定量水箱不断加水同时，加入膨润土、纯碱液，搅拌3min后，加入CMC液继续搅拌，得到搅拌好的泥浆静置≥24h；S3：成槽施工，在导墙施工完成后，采用抓斗最大提升高度为2m的成槽机，以“跳孔挖掘法”挖成单元施工槽段，且配备挖机进行装土；S4：刷壁；S5：清孔换浆。本发明采用抓斗最大提升高度为2m的成槽机，解决了净空高度不足的问题，且利用本发明中泥浆制作的方法，延长了泥浆保持性能的时间，可保证施工质量。
Method for grooving underground diaphragm wall under low clearance
一种用于低净空下的地连墙成槽的方法
NIU JUNWEI (Autor:in) / WANG XIAOJUN (Autor:in) / HUANG LEI (Autor:in) / GOU WENBIN (Autor:in) / SHAO WEIGUO (Autor:in) / YANG KUN (Autor:in) / HOU YAXIN (Autor:in) / DENG HAICHAO (Autor:in) / YIN SHAOBO (Autor:in) / CHEN TAOFEI (Autor:in)
15.03.2024
Patent
Elektronische Ressource
Chinesisch
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