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Construction method for joint pre-grouting reinforcement of underground diaphragm wall in complex stratum
The invention belongs to the technical field of underground diaphragm wall construction, discloses a pre-grouting reinforcement construction method for joints of an underground diaphragm wall in a complex stratum, and aims to solve the problems of long construction period, high cost and poor stratum adaptability of an anti-seepage treatment mode at the joints of the underground diaphragm wall in the prior art. The method comprises the following steps of: positioning and paying off a guide wall, a joint and a grouting hole according to a reconnaissance report and a design drawing; the grouting holes comprise the first grouting hole, at least one set of second grouting holes and at least one set of third grouting holes, and then the first grouting hole, the second grouting holes and the third grouting holes are subjected to grouting reinforcement through sectional grouting. The method has the advantages of adjusting measures to local conditions, being flexible in adjustment and the like, and is suitable for ultra-deep underground diaphragm wall construction under various stratum conditions. The advantages of sleeve valve pipe grouting are fully utilized, the grouting amount is accurate and controllable, and engineering benefits can be remarkably improved.
本发明属于地下连续墙施工技术领域，公开了一种复杂地层地下连续墙接缝预注浆加固施工方法，为了解决现有地下连续墙接缝处防渗处理的方式存在着施工周期长、成本高、地层适应性差的问题。本发明包括按照勘察报告与设计图纸进行导墙、接缝和注浆孔的定位放线；所述注浆孔包括第一注浆孔、至少一组第二注浆孔和至少一组第三注浆孔，然后利用分段式注浆对第一注浆孔、第二注浆孔和第三注浆孔进行注浆加固。本发明具有因地制宜，灵活调整等优点，适用于各类地层条件下的超深地下连续墙施工。本发明充分利用了袖阀管注浆的优势，注浆量精确可控，可显著提高工程效益。
Construction method for joint pre-grouting reinforcement of underground diaphragm wall in complex stratum
The invention belongs to the technical field of underground diaphragm wall construction, discloses a pre-grouting reinforcement construction method for joints of an underground diaphragm wall in a complex stratum, and aims to solve the problems of long construction period, high cost and poor stratum adaptability of an anti-seepage treatment mode at the joints of the underground diaphragm wall in the prior art. The method comprises the following steps of: positioning and paying off a guide wall, a joint and a grouting hole according to a reconnaissance report and a design drawing; the grouting holes comprise the first grouting hole, at least one set of second grouting holes and at least one set of third grouting holes, and then the first grouting hole, the second grouting holes and the third grouting holes are subjected to grouting reinforcement through sectional grouting. The method has the advantages of adjusting measures to local conditions, being flexible in adjustment and the like, and is suitable for ultra-deep underground diaphragm wall construction under various stratum conditions. The advantages of sleeve valve pipe grouting are fully utilized, the grouting amount is accurate and controllable, and engineering benefits can be remarkably improved.
本发明属于地下连续墙施工技术领域，公开了一种复杂地层地下连续墙接缝预注浆加固施工方法，为了解决现有地下连续墙接缝处防渗处理的方式存在着施工周期长、成本高、地层适应性差的问题。本发明包括按照勘察报告与设计图纸进行导墙、接缝和注浆孔的定位放线；所述注浆孔包括第一注浆孔、至少一组第二注浆孔和至少一组第三注浆孔，然后利用分段式注浆对第一注浆孔、第二注浆孔和第三注浆孔进行注浆加固。本发明具有因地制宜，灵活调整等优点，适用于各类地层条件下的超深地下连续墙施工。本发明充分利用了袖阀管注浆的优势，注浆量精确可控，可显著提高工程效益。
Construction method for joint pre-grouting reinforcement of underground diaphragm wall in complex stratum
一种复杂地层地下连续墙接缝预注浆加固施工方法
HUANG QINGLIANG (author) / ZHOU WENHAO (author) / FU HONGLIN (author) / SHEN PENGFEI (author) / PU XIAOSHENG (author)
2024-02-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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