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A platform for research: civil engineering, architecture and urbanism
Grouting reinforcement pipe burying method for deep and thick filling soft soil foundation
The invention discloses a grouting reinforcement pipe burying method for a deep filling soft soil foundation. The grouting reinforcement pipe burying method comprises the following steps of hole site measuring and placing, circulating hole guiding grouting wall protecting, grouting pipe descending and hole sealing. The drilling and grouting integrated drilling machine is used for hole guiding and grouting, hole guiding is conducted in a layered circulation mode from top to bottom, fast-setting and early-hardening double-fluid slurry is pumped to protect the wall till a target layer, hole shrinkage and hole collapse are avoided in the hole guiding process, it is ensured that a grouting pipe is smoothly lowered to the bottom of a hole, the fast-setting and early-hardening double-fluid slurry is adopted again for fast hole sealing after the grouting pipe is lowered, and the construction efficiency is improved. And after solidification, pressure splitting grouting can be carried out, so that the hole forming efficiency and the grouting effect are greatly improved.
本发明公开了一种深厚填土软土地基注浆加固埋管方法，包括如下步骤：测放孔位、循环引孔注浆护壁、下注浆管、封孔。本发明利用钻注一体化钻机引孔和注浆，自上而下分层循环引孔和泵送快凝早硬双液浆护壁直至目标层，避免引孔过程中发生缩径和塌孔，确保注浆管顺利下放至孔底，在下入注浆管后再次采用快凝早硬双液浆进行快速封孔，待凝固后即可进行压力劈裂注浆，成孔效率和注浆效果大大提高。
Grouting reinforcement pipe burying method for deep and thick filling soft soil foundation
The invention discloses a grouting reinforcement pipe burying method for a deep filling soft soil foundation. The grouting reinforcement pipe burying method comprises the following steps of hole site measuring and placing, circulating hole guiding grouting wall protecting, grouting pipe descending and hole sealing. The drilling and grouting integrated drilling machine is used for hole guiding and grouting, hole guiding is conducted in a layered circulation mode from top to bottom, fast-setting and early-hardening double-fluid slurry is pumped to protect the wall till a target layer, hole shrinkage and hole collapse are avoided in the hole guiding process, it is ensured that a grouting pipe is smoothly lowered to the bottom of a hole, the fast-setting and early-hardening double-fluid slurry is adopted again for fast hole sealing after the grouting pipe is lowered, and the construction efficiency is improved. And after solidification, pressure splitting grouting can be carried out, so that the hole forming efficiency and the grouting effect are greatly improved.
本发明公开了一种深厚填土软土地基注浆加固埋管方法，包括如下步骤：测放孔位、循环引孔注浆护壁、下注浆管、封孔。本发明利用钻注一体化钻机引孔和注浆，自上而下分层循环引孔和泵送快凝早硬双液浆护壁直至目标层，避免引孔过程中发生缩径和塌孔，确保注浆管顺利下放至孔底，在下入注浆管后再次采用快凝早硬双液浆进行快速封孔，待凝固后即可进行压力劈裂注浆，成孔效率和注浆效果大大提高。
Grouting reinforcement pipe burying method for deep and thick filling soft soil foundation
一种深厚填土软土地基注浆加固埋管方法
ZHOU JIANWEI (author) / LIANG JIXIN (author) / CHEN NING (author) / REN DONGXING (author) / PENG XIN (author)
2024-06-21
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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