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Directional grouting structure and deviation rectifying system of pier roadbed

A technology of grouting and bridge piers, applied in the field of deviation correction system, can solve problems such as building damage

Pending Publication Date: 2020-12-04
中铁四院集团工程建设有限责任公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present application expects to provide a directional grouting structure and a deviation correction system for bridge piers and subgrades to solve the problem of damage to existing buildings around when the grouting structure is used for horizontal deviation adjustment of pier subgrades

Method used

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  • Directional grouting structure and deviation rectifying system of pier roadbed
  • Directional grouting structure and deviation rectifying system of pier roadbed
  • Directional grouting structure and deviation rectifying system of pier roadbed

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments in the application and the technical features in the embodiments can be combined with each other. Undue Limitation of This Application.

[0031] The orientation terms in the description of the application are only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a reference to the application. limits.

[0032] The rotary grouting pile is to use the drilling rig to drill the rotary jet nozzle at the design elevation of the pile bottom, pass the pre-prepared grout through the grouting structure to obtain a certain amount of energy, and then spray it out at a high speed from the grouting port on the nozzle. A liquid flow with highly concentrated energy is formed, which direc...

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Abstract

The invention discloses a directional grouting structure which is used for directional grouting in a grouting hole and comprises a casing material poured in the grouting hole, a flow guide pipe, a grouting pipe and sealing plugs, wherein the flow guide pipe is arranged in the grouting hole, a plurality of rows of slurry spraying openings for directional spraying are formed in the flow guide pipe,and the flow guide pipe is wrapped by the casing material; the grouting pipe is arranged in the flow guide pipe, and a slurry outlet is formed in the grouting pipe; and the two sealing plugs are fixedto the grouting pipe, the slurry outlet is located between the two sealing plugs, the grouting pipe can move in the flow guide pipe in a sliding mode through the sealing plugs, a slurry spraying cavity is formed between the two sealing plugs and the flow guide pipe, and the slurry spraying cavity is connected with at least one row of slurry spraying openings. Meanwhile, the invention further provides a deviation rectifying system for a pier roadbed. The directional grouting structure and the deviation rectifying system of the pier roadbed have the advantage that damage to surrounding existingbuildings is prevented in horizontal deviation renovation of the pier roadbed.

Description

technical field [0001] The present application relates to the technical field of civil engineering, in particular to a deviation correction system for a directional grouting structure and a bridge pier embankment. Background technique [0002] At present, my country's high-speed railway has basically formed a four-vertical and four-horizontal pattern. Among them, Beijing-Shanghai, Beijing-Hong Kong, Hangzhou-Fuzhou and other dedicated passenger lines pass through coastal areas where soft soil is widely distributed. Based on the advantages of long service life, good durability and small maintenance workload of ballastless track, ballastless track is widely used in high-speed railways in my country. At present, the research on the settlement of high-speed railway bridge piers and subgrades is relatively mature, but there are few studies on the lateral deformation of ballastless track subgrades, and the understanding of technical personnel on the lateral deformation of subgrad...

Claims

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Application Information

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IPC IPC(8): E01B2/00E01D19/02
CPCE01B2/00E01B2/006E01D19/02
Inventor 陈占周勇彭志鹏陈侃何新辉陈仕奇李丹胡俊清杨涌刘杰杨海强
Owner 中铁四院集团工程建设有限责任公司
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