A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Grouting method after drilling of rock-entering underground continuous wall
The invention discloses a grouting method after drilling of a rock-entering underground continuous wall. The grouting method comprises the steps that S1, a plurality of grouting pipes are welded to a reinforcement cage framework, and the reinforcement cage framework is arranged downwards to the bottoms of the grouting pipes to reach the elevation positions of the bottoms of the grouting pipes; S2, water is injected into the grouting pipes; S3, bottom opening steel plates of the corresponding grouting pipes are drilled through and penetrate through the bottom of the underground continuous wall by 30-50cm; S4, after drilling is completed, a large amount of water is used for flushing sediments in drilled holes; S5, cement paste is slowly injected into replacement pipes, and clear water in the pipes is completely replaced to pipe openings; S6, the grouting pipes are connected with a pressurizing pipeline of a grouting pump; S7, the cement paste is injected into the drilled holes in the wall bottom through the grouting pipes in a grouting pump pressurizing mode; S8, grouting is stopped; and S9, after grouting is finished, thick paste is used for replacing the cement paste in drilled hole sections. The problems that an existing post-grouting process cannot reinforce a softened rock stratum, and wall body concrete is damaged due to clear water plugging are solved.
本发明公开一种入岩地下连续墙钻孔后注浆工艺，它包括S1：将多根注浆管焊接在钢筋笼骨架上，下设钢筋笼骨架至注浆管底部到达注浆管底标高位置；S2：对注浆管进行注水；S3：钻穿相应注浆管的底口钢板并穿过地连墙底30‑50cm；S4：钻进完成后采用大量水冲洗钻孔内沉渣；S5：往置换管内缓缓注入水泥浆，将管内清水全部置换至管口；S6：将注浆管和注浆泵的加压管路相连接；S7：将水泥浆通过注浆泵加压的方式，经注浆管注入墙底内的钻孔；S8：停止压浆；S9：注浆结束后，采用浓浆对钻孔段内水泥浆进行置换；本发明解决了目前现有的后注浆工艺无法对软化后岩层进行加固的问题以及清水开塞对墙身混凝土产生损伤的问题。
Grouting method after drilling of rock-entering underground continuous wall
The invention discloses a grouting method after drilling of a rock-entering underground continuous wall. The grouting method comprises the steps that S1, a plurality of grouting pipes are welded to a reinforcement cage framework, and the reinforcement cage framework is arranged downwards to the bottoms of the grouting pipes to reach the elevation positions of the bottoms of the grouting pipes; S2, water is injected into the grouting pipes; S3, bottom opening steel plates of the corresponding grouting pipes are drilled through and penetrate through the bottom of the underground continuous wall by 30-50cm; S4, after drilling is completed, a large amount of water is used for flushing sediments in drilled holes; S5, cement paste is slowly injected into replacement pipes, and clear water in the pipes is completely replaced to pipe openings; S6, the grouting pipes are connected with a pressurizing pipeline of a grouting pump; S7, the cement paste is injected into the drilled holes in the wall bottom through the grouting pipes in a grouting pump pressurizing mode; S8, grouting is stopped; and S9, after grouting is finished, thick paste is used for replacing the cement paste in drilled hole sections. The problems that an existing post-grouting process cannot reinforce a softened rock stratum, and wall body concrete is damaged due to clear water plugging are solved.
本发明公开一种入岩地下连续墙钻孔后注浆工艺，它包括S1：将多根注浆管焊接在钢筋笼骨架上，下设钢筋笼骨架至注浆管底部到达注浆管底标高位置；S2：对注浆管进行注水；S3：钻穿相应注浆管的底口钢板并穿过地连墙底30‑50cm；S4：钻进完成后采用大量水冲洗钻孔内沉渣；S5：往置换管内缓缓注入水泥浆，将管内清水全部置换至管口；S6：将注浆管和注浆泵的加压管路相连接；S7：将水泥浆通过注浆泵加压的方式，经注浆管注入墙底内的钻孔；S8：停止压浆；S9：注浆结束后，采用浓浆对钻孔段内水泥浆进行置换；本发明解决了目前现有的后注浆工艺无法对软化后岩层进行加固的问题以及清水开塞对墙身混凝土产生损伤的问题。
Grouting method after drilling of rock-entering underground continuous wall
一种入岩地下连续墙钻孔后注浆方法
ZHOU JIAQI (author) / LUO HUIDONG (author) / XUE GAOSHENG (author) / ZHOU TENGLONG (author) / WEI YUWEI (author) / FENG ZHIJUN (author) / CAO ANLE (author) / LI YANBO (author) / XIA HUIFENG (author) / JIA YINGYING (author)
2021-12-21
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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