A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for sleeve valve pipe grouting reinforcement foundation
The invention discloses a construction method for sleeve valve pipe grouting reinforcement of a foundation. The construction method comprises the following steps: drilling to form a hole; lowering an outer pipe into the formed drill hole; a casing material is injected into the drill hole; grouting-stopping and pipe-fixing materials are injected into an annular gap between the outer pipe and the hole wall of the drill hole, and the following steps are executed after the grouting-stopping and pipe-fixing materials are solidified; the double-plug core pipe is sequentially lowered to the multiple pipe sections in the outer pipe, and open-loop grouting is conducted on the multiple pipe sections; at each pipe section, air bags at the two ends of the double-plug core pipe are expanded to form grout stopping plugs to plug the two ends of the corresponding pipe section, then initial grout is injected through the double-plug core pipe until grout stopping and pipe fixing materials on the outer sides of at least one set of grout jetting holes formed in the corresponding pipe section are burst open, then grout for reinforcement is injected through the double-plug core pipe, and the grout stopping and pipe fixing materials on the outer sides of the at least one set of grout jetting holes in the corresponding pipe section are burst open. Slurry for reinforcement is injected into the foundation to be reinforced through at least one set of slurry injection holes formed in the corresponding pipe sections. According to the method, the flexibility and reliability of foundation reinforcement treatment can be improved, and the stratum strength and the self-stabilization capacity can be improved.
本发明公开了一种袖阀管注浆加固地基的施工方法，包括：钻进成孔；向所形成的钻孔下放外管；向钻孔内注入套壳料；向外管和钻孔的孔壁之间的环状间隙注入止浆固管料，待止浆固管料凝固才执行以下步骤；依次将双栓塞芯管下放至外管内部的多个管段处，分别在多个管段处进行开环注浆；在每个管段处，先对双栓塞芯管的两端气囊膨胀形成止浆塞以封堵相应管段的两端，再通过双栓塞芯管注入初始浆液，直至将相应管段所具有的至少一组射浆孔外侧的止浆固管料冲开，之后通过双栓塞芯管注入加固用浆液，以使加固用浆液通过相应管段所具有的至少一组射浆孔注入待加固地基中。本发明可以提高对于地基加固处理的灵活性和可靠性，可以提高地层强度和自稳能力。
Construction method for sleeve valve pipe grouting reinforcement foundation
The invention discloses a construction method for sleeve valve pipe grouting reinforcement of a foundation. The construction method comprises the following steps: drilling to form a hole; lowering an outer pipe into the formed drill hole; a casing material is injected into the drill hole; grouting-stopping and pipe-fixing materials are injected into an annular gap between the outer pipe and the hole wall of the drill hole, and the following steps are executed after the grouting-stopping and pipe-fixing materials are solidified; the double-plug core pipe is sequentially lowered to the multiple pipe sections in the outer pipe, and open-loop grouting is conducted on the multiple pipe sections; at each pipe section, air bags at the two ends of the double-plug core pipe are expanded to form grout stopping plugs to plug the two ends of the corresponding pipe section, then initial grout is injected through the double-plug core pipe until grout stopping and pipe fixing materials on the outer sides of at least one set of grout jetting holes formed in the corresponding pipe section are burst open, then grout for reinforcement is injected through the double-plug core pipe, and the grout stopping and pipe fixing materials on the outer sides of the at least one set of grout jetting holes in the corresponding pipe section are burst open. Slurry for reinforcement is injected into the foundation to be reinforced through at least one set of slurry injection holes formed in the corresponding pipe sections. According to the method, the flexibility and reliability of foundation reinforcement treatment can be improved, and the stratum strength and the self-stabilization capacity can be improved.
本发明公开了一种袖阀管注浆加固地基的施工方法，包括：钻进成孔；向所形成的钻孔下放外管；向钻孔内注入套壳料；向外管和钻孔的孔壁之间的环状间隙注入止浆固管料，待止浆固管料凝固才执行以下步骤；依次将双栓塞芯管下放至外管内部的多个管段处，分别在多个管段处进行开环注浆；在每个管段处，先对双栓塞芯管的两端气囊膨胀形成止浆塞以封堵相应管段的两端，再通过双栓塞芯管注入初始浆液，直至将相应管段所具有的至少一组射浆孔外侧的止浆固管料冲开，之后通过双栓塞芯管注入加固用浆液，以使加固用浆液通过相应管段所具有的至少一组射浆孔注入待加固地基中。本发明可以提高对于地基加固处理的灵活性和可靠性，可以提高地层强度和自稳能力。
Construction method for sleeve valve pipe grouting reinforcement foundation
一种袖阀管注浆加固地基的施工方法
WANG SIJUN (author) / YANG HUAN (author) / LYU BING (author) / FENG YUE (author) / YU JIAN (author) / YANG RUIHAO (author) / FENG RUNZHI (author) / MENG YINGJIE (author) / TIAN QIANG (author)
2023-05-16
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Soft foundation sleeve valve pipe grouting reinforcement application construction method
| European Patent Office | 2021
Sleeve valve pipe and grouting construction method comprising same
| European Patent Office | 2021