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A platform for research: civil engineering, architecture and urbanism
Construction method for treating soft soil foundation by using solid waste cemented recycled coarse aggregate
The invention discloses a construction method for conducting soft soil foundation treatment through solid waste cemented recycled coarse aggregate. According to the method, novel salty mud is injected into the upper portion of a pile body through a porous grouting pipe to excite fly ash cementing liquid. According to the cementing fluid, the salty mud industrial solid waste is used as a main alkaline exciting agent, desulfurized gypsum is used as an auxiliary material, active SiO2 in the fly ash is excited, hydrated calcium silicate (H-C-S) with the cementing capacity is generated, solid waste excitation by solid waste is achieved, and the problems of high energy consumption, high emission, environmental pollution and the like caused by using a traditional cementing material are solved. And by using the porous grouting pipe for grouting, full contact between the cementing liquid and the recycled coarse aggregate during grouting is ensured, so that the reinforcing effect is ensured, and resources are saved. Porous structures of mortar blocks, red brick blocks and broken porcelain in the recycled coarse aggregate can well adsorb cementing liquid, a cementing layer is formed in a recycled aggregate pile top reinforcing area, lateral bulging deformation near the pile top is limited, then the bearing capacity of a pile body is improved, pile top sedimentation is reduced, the effect is remarkable, and safety and environment friendliness are achieved.
本申请公开了一种利用固废胶结再生粗骨料进行软土地基处理的施工方法，该方法在桩体上部通过多孔注浆管注入新型盐泥激发粉煤灰胶结液。胶结液以盐泥工业固废为主要碱性激发剂，辅以脱硫石膏，对粉煤灰中的活性SiO2进行激发，生成具有胶结能力的水化硅酸钙(H‑C‑S)，实现固废激发固废，避免了使用传统胶凝材料带来的高能耗、高排放和污染环境等问题。使用多孔注浆管注浆保证了注浆时胶结液与再生粗骨料之间的充分接触，从而保证了加固效果，并节约了资源。再生粗骨料中砂浆块、红砖块、碎瓷的多孔结构能较好地吸附胶结液，在再生骨料桩桩顶加固区形成胶结层，限制桩顶附近侧向鼓胀变形，进而提高桩身承载力，减小桩顶沉降，效果显著，安全环保。
Construction method for treating soft soil foundation by using solid waste cemented recycled coarse aggregate
The invention discloses a construction method for conducting soft soil foundation treatment through solid waste cemented recycled coarse aggregate. According to the method, novel salty mud is injected into the upper portion of a pile body through a porous grouting pipe to excite fly ash cementing liquid. According to the cementing fluid, the salty mud industrial solid waste is used as a main alkaline exciting agent, desulfurized gypsum is used as an auxiliary material, active SiO2 in the fly ash is excited, hydrated calcium silicate (H-C-S) with the cementing capacity is generated, solid waste excitation by solid waste is achieved, and the problems of high energy consumption, high emission, environmental pollution and the like caused by using a traditional cementing material are solved. And by using the porous grouting pipe for grouting, full contact between the cementing liquid and the recycled coarse aggregate during grouting is ensured, so that the reinforcing effect is ensured, and resources are saved. Porous structures of mortar blocks, red brick blocks and broken porcelain in the recycled coarse aggregate can well adsorb cementing liquid, a cementing layer is formed in a recycled aggregate pile top reinforcing area, lateral bulging deformation near the pile top is limited, then the bearing capacity of a pile body is improved, pile top sedimentation is reduced, the effect is remarkable, and safety and environment friendliness are achieved.
本申请公开了一种利用固废胶结再生粗骨料进行软土地基处理的施工方法，该方法在桩体上部通过多孔注浆管注入新型盐泥激发粉煤灰胶结液。胶结液以盐泥工业固废为主要碱性激发剂，辅以脱硫石膏，对粉煤灰中的活性SiO2进行激发，生成具有胶结能力的水化硅酸钙(H‑C‑S)，实现固废激发固废，避免了使用传统胶凝材料带来的高能耗、高排放和污染环境等问题。使用多孔注浆管注浆保证了注浆时胶结液与再生粗骨料之间的充分接触，从而保证了加固效果，并节约了资源。再生粗骨料中砂浆块、红砖块、碎瓷的多孔结构能较好地吸附胶结液，在再生骨料桩桩顶加固区形成胶结层，限制桩顶附近侧向鼓胀变形，进而提高桩身承载力，减小桩顶沉降，效果显著，安全环保。
Construction method for treating soft soil foundation by using solid waste cemented recycled coarse aggregate
利用固废胶结再生粗骨料进行软土地基处理的施工方法
LONG JUN (author) / ZHANG LING (author) / CHEN YUNHAO (author) / CHEN ZHICHAO (author) / DENG MENGCHAO (author) / XU ZEYU (author) / WANG YING (author)
2023-07-18
Patent
Electronic Resource
Chinese
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