Active protection method for eliminating influence of stratum settlement on existing building

An existing building, active protection technology, applied in the direction of building, infrastructure repair, infrastructure engineering, etc., to achieve high ductility, cost savings, and prevent uneven settlement.

Active Publication Date: 2021-09-24
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scope of excavation affected area is within 10 meters from the foundation pit area of ​​the new construction;

Method used

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  • Active protection method for eliminating influence of stratum settlement on existing building
  • Active protection method for eliminating influence of stratum settlement on existing building

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0025] Techniques, methods and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Description.

[0026] like Figure 1-Figure 2 An active protection method for eliminating the impact of stratum subsidence on existing build...

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Abstract

The invention discloses an active protection method for eliminating the influence of stratum settlement on an existing building, and belongs to the technical field of engineering construction protection. The active protection method comprises the following steps that 1, a protection range which is not affected by stratum settlement around the building needing to be protected is determined; 2, a circle of vertical drill holes are constructed at intervals near the critical position of the protected range around the protected building; 3, grooves are formed between the adjacent vertical drill holes in a milling manner, and milling groove sections and protective layer groove bodies are formed; 4, replacing and filling are carried out on slurry in the grooves from bottom to top by adopting a ductile waterproof material to form replacing and filling sections; and 5, after the ductile waterproof material is solidified and formed, end-to-end connection is carried out, and a circle of active protection layer with high ductile performance and high waterproof performance is formed near the range of a excavation influence area of a newly-built project. According to the method, the building can be prevented from being influenced by the surrounding stratum settlement, and the influence of additional stress generated by the stratum settlement and the uneven settlement on the building is prevented. If the technology is adopted around a newly-excavated foundation pit, the influence of the stratum settlement caused by excavation on the surrounding building can be reduced, and therefore the active protection effect on the existing building is achieved.

Description

technical field [0001] The invention relates to an active protection method for an existing engineering structure, belonging to the technical field of engineering construction protection. Background technique [0002] At present, a large number of engineering practices have shown that the excavation of new projects has a negative excavation impact on the adjacent existing engineering structures, causing safety hazards. Cases of engineering accidents caused by excavation, such as: cracking of buildings caused by uneven settlement of foundations of existing buildings, collapse of adjacent roads and roads caused by chain damage caused by excavation surges of deep foundation pits, etc. The main reason for these engineering accidents is that the excavation of new projects destroys the stress environment of the original stratum and its adjacent engineering structures, which makes the foundation of existing engineering structures unevenly stressed, which in turn causes uneven settl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D37/00E02F5/02E02F5/14
CPCE02D37/00E02F5/02E02F5/14
Inventor 任彦龙张后全杨维好黄家会赵华昀骆汀汀李海鹏
Owner CHINA UNIV OF MINING & TECH
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