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A platform for research: civil engineering, architecture and urbanism
Construction method for diaphragm wall to penetrate through narrow concrete support pile space
The invention provides a construction method for enabling an anti-seepage wall to penetrate through a narrow concrete supporting pile space. Concrete supporting piles and cement mixing piles are engaged to form integral piles through high-pressure jet grouting pile construction, and then anti-seepage wall construction is conducted. The invention discloses a high-pressure jet grouting pile construction method. S11, preparing slurry; s12, a rotary spraying center point is positioned; s13, drilling is conducted; and S14, rotary spraying construction is conducted. The diaphragm wall construction comprises the steps that S21, materials are prepared; s22, slurry is prepared; s23, a guide groove is poured; s24, performing pore-forming construction on the diaphragm wall; s25, hoisting a reinforcement cage; and S26, concrete pouring is conducted. The problems that when the diaphragm wall penetrates through the narrow space of the concrete support pile, the space is narrow, the surrounding soil is thin, the concrete support pile collapses along with excavation, internal shrinkage deformation of the concrete support pile is caused, and the concrete support pile slides when the bottom elevation of the diaphragm wall exceeds the concrete support pile are solved. The concrete pouring supporting piles are connected in series in a supporting and meshing mode through the high-pressure jet grouting cement mixing piles to form a whole, and the torque resistance and the sliding resistance between the piles are enhanced.
本发明提供了一种防渗墙穿越狭窄混凝土支护桩空间的施工方法，通过高压旋喷桩施工使混凝土支撑桩与水泥搅拌桩咬合形成整体桩后进行防渗墙施工；其中高压旋喷桩施工包括；S11、准备浆液；S12、定位旋喷中心点；S13、钻孔；S14、旋喷施工。其中防渗墙施工包括：S21、准备材料；S22、制备泥浆；S23、浇筑导向槽；S24、防渗墙造孔施工；S25、吊装钢筋笼；S26、混凝土浇筑。本发明解决了防渗墙在穿越混凝土支护桩狭窄空间时，空间狭小周边土质单薄随开挖塌陷造成的混凝土支护桩的内收缩变形以及在防渗墙的底高程超越混凝土支护桩时混凝土支护桩的滑移现象，通过高压旋喷水泥搅拌桩将混凝土灌注支护桩支护咬合串联形成整体增强了桩间抗扭矩与抗滑力。
Construction method for diaphragm wall to penetrate through narrow concrete support pile space
The invention provides a construction method for enabling an anti-seepage wall to penetrate through a narrow concrete supporting pile space. Concrete supporting piles and cement mixing piles are engaged to form integral piles through high-pressure jet grouting pile construction, and then anti-seepage wall construction is conducted. The invention discloses a high-pressure jet grouting pile construction method. S11, preparing slurry; s12, a rotary spraying center point is positioned; s13, drilling is conducted; and S14, rotary spraying construction is conducted. The diaphragm wall construction comprises the steps that S21, materials are prepared; s22, slurry is prepared; s23, a guide groove is poured; s24, performing pore-forming construction on the diaphragm wall; s25, hoisting a reinforcement cage; and S26, concrete pouring is conducted. The problems that when the diaphragm wall penetrates through the narrow space of the concrete support pile, the space is narrow, the surrounding soil is thin, the concrete support pile collapses along with excavation, internal shrinkage deformation of the concrete support pile is caused, and the concrete support pile slides when the bottom elevation of the diaphragm wall exceeds the concrete support pile are solved. The concrete pouring supporting piles are connected in series in a supporting and meshing mode through the high-pressure jet grouting cement mixing piles to form a whole, and the torque resistance and the sliding resistance between the piles are enhanced.
本发明提供了一种防渗墙穿越狭窄混凝土支护桩空间的施工方法，通过高压旋喷桩施工使混凝土支撑桩与水泥搅拌桩咬合形成整体桩后进行防渗墙施工；其中高压旋喷桩施工包括；S11、准备浆液；S12、定位旋喷中心点；S13、钻孔；S14、旋喷施工。其中防渗墙施工包括：S21、准备材料；S22、制备泥浆；S23、浇筑导向槽；S24、防渗墙造孔施工；S25、吊装钢筋笼；S26、混凝土浇筑。本发明解决了防渗墙在穿越混凝土支护桩狭窄空间时，空间狭小周边土质单薄随开挖塌陷造成的混凝土支护桩的内收缩变形以及在防渗墙的底高程超越混凝土支护桩时混凝土支护桩的滑移现象，通过高压旋喷水泥搅拌桩将混凝土灌注支护桩支护咬合串联形成整体增强了桩间抗扭矩与抗滑力。
Construction method for diaphragm wall to penetrate through narrow concrete support pile space
一种防渗墙穿越狭窄混凝土支护桩空间的施工方法
LI GUANG (author) / NIE JINLONG (author) / WANG ERJUN (author) / LI LUJUN (author) / YU XIAOWEI (author) / YANG TAO (author) / JIANG FUWEI (author) / CHEN YONGGANG (author) / MA JUNJIE (author) / WU PENGFEI (author)
2024-11-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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