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A platform for research: civil engineering, architecture and urbanism
Construction method of ultra-deep equal-thickness cement-soil mixed wall under complex geological conditions
The invention discloses a construction method of an ultra-deep equal-thickness cement-soil mixed wall under complex geological conditions. The construction method comprises the following steps: measuring and setting out a central axis angular point of the cement-soil mixed wall; reinforcing a construction site and constructing a guide wall; grooving by using a grooving machine and performing earthwork backfilling in a groove, and forming a backfill soil section; constructing the cement-soil mixed wall by using a TRD construction method in the backfill soil section; injecting curing liquid withthe same proportion into a pulling area of a cutting box, performing pulling and grouting at the same time, and ensuring that a hole occupied by the cutting box is densely filled and effectively reinforced, and finishing wall construction. According to the construction method, a trenching machine is used for excavating a hard soil body, a TRD construction method machine is adopted to conduct cement-soil mixed wall forming construction on the backfill soil section, the problems that when the soil layer hardness difference is large, a tool of the TRD construction method machine is large in soilbody cutting resistance, and a cutter head is prone to overturning are successfully solved, and the cement soil mixed wall has good stability and anti-seepage performance.
本发明公开了一种复杂地质条件下超深等厚度水泥土搅拌墙的施工方法，包括如下步骤：测量放样水泥土搅拌墙的中心轴线角点；对施工场地进行加固，并施工导墙；利用成槽机成槽，在槽内进行土方回填，形成回填土段；在回填土段采用TRD工法施工水泥土搅拌墙；在切割箱起拔区域注入同配比的固化液，边起拔边注浆，确保对切割箱占据空洞进行密实填充和有效加固，结束墙体施工。该施工方法利用成槽机开挖坚硬土体，并回填后形成回填土段，采用TRD工法机在回填土段进行水泥土搅拌墙成墙施工，成功解决了土层硬度差异较大时导致TRD工法机刀具切割土体阻力大、刀盘易倾覆的问题，使水泥土搅拌墙具有很好的稳定性及防渗性能。
Construction method of ultra-deep equal-thickness cement-soil mixed wall under complex geological conditions
The invention discloses a construction method of an ultra-deep equal-thickness cement-soil mixed wall under complex geological conditions. The construction method comprises the following steps: measuring and setting out a central axis angular point of the cement-soil mixed wall; reinforcing a construction site and constructing a guide wall; grooving by using a grooving machine and performing earthwork backfilling in a groove, and forming a backfill soil section; constructing the cement-soil mixed wall by using a TRD construction method in the backfill soil section; injecting curing liquid withthe same proportion into a pulling area of a cutting box, performing pulling and grouting at the same time, and ensuring that a hole occupied by the cutting box is densely filled and effectively reinforced, and finishing wall construction. According to the construction method, a trenching machine is used for excavating a hard soil body, a TRD construction method machine is adopted to conduct cement-soil mixed wall forming construction on the backfill soil section, the problems that when the soil layer hardness difference is large, a tool of the TRD construction method machine is large in soilbody cutting resistance, and a cutter head is prone to overturning are successfully solved, and the cement soil mixed wall has good stability and anti-seepage performance.
本发明公开了一种复杂地质条件下超深等厚度水泥土搅拌墙的施工方法，包括如下步骤：测量放样水泥土搅拌墙的中心轴线角点；对施工场地进行加固，并施工导墙；利用成槽机成槽，在槽内进行土方回填，形成回填土段；在回填土段采用TRD工法施工水泥土搅拌墙；在切割箱起拔区域注入同配比的固化液，边起拔边注浆，确保对切割箱占据空洞进行密实填充和有效加固，结束墙体施工。该施工方法利用成槽机开挖坚硬土体，并回填后形成回填土段，采用TRD工法机在回填土段进行水泥土搅拌墙成墙施工，成功解决了土层硬度差异较大时导致TRD工法机刀具切割土体阻力大、刀盘易倾覆的问题，使水泥土搅拌墙具有很好的稳定性及防渗性能。
Construction method of ultra-deep equal-thickness cement-soil mixed wall under complex geological conditions
复杂地质条件下超深等厚度水泥土搅拌墙的施工方法
LIU XINCHENG (author) / WENG ZIWEI (author) / KONG LINGKAI (author) / DONG KAIJUN (author) / YUAN CHAO (author) / LIAN YONGLIANG (author)
2020-04-21
Patent
Electronic Resource
Chinese
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