Segment grouting method
A segment and grouting technology, which is applied in earthwork drilling, wellbore lining, tunnel lining, etc., and can solve problems such as gaps, water seepage, and grout backflow
Pending Publication Date: 2021-06-22
上海隧道工程智造海盐有限公司 +1
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a segment grouting method to solve the existing problems of gaps and water seepage between steel pipes and segments, as well as the problem of grout backflow
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] The invention provides a segment grouting method, which is used for the segment grouting and the connection with the boom of the shield machine. The water-stop structure and the water-stop steel plate prolong the seepage path to achieve a water-stop effect, and achieve good grouting and non-return effects through the non-return parts.
[0034] see figure 1 with figure 2 , in this ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a segment grouting method. The segment grouting method comprises the steps that a check part is installed in a pipe burying assembly, and the tip end of the check part faces an outer arc surface so as to block the pipe burying assembly, so that an opening communicates with the pipe burying assembly; the pipe burying assembly is buried in a segment, the open end of the pipe burying assembly is located on an inner arc surface, and the closed end of the pipe burying assembly is close to the outer arc surface; after the segment is assembled, a drilling tool stretches into the pipe burying assembly and jacks a plurality of blocking pieces open, the closed end of the pipe burying assembly is drilled through the drilling tool, the segment is punched through, and the drilling tool is taken out; grout is injected into the pipe burying assembly, the plurality of blocking pieces move in the direction away from one another and are in an open state so as to communicate with the pipe burying assembly, so that the grout flows through the check part, and then the grout enters a gap through the closed end and the segment; and when grouting is stopped, the plurality of blocking pieces get close to one another to block the pipe burying assembly so as to achieve check of the grout. According to the segment grouting method, a water seepage path is prolonged through a first water stop structure, the water stop effect is achieved, and the good grouting and check effects are achieved through the check part.
Description
technical field [0001] The invention relates to the technical field of construction, in particular to a segment grouting method. Background technique [0002] In the construction of a shield tunnel, there will be a gap between the shield segment and the inner wall of the tunnel. Usually, steel pipes are pre-embedded on the segment, and the grouting pipe and the steel pipe are connected to the gap between the shield segment and the inner wall of the tunnel. The grout is injected, but there is a gap between the steel pipe and the segment, which is prone to water seepage, and even causes the steel pipe to loosen and come out of the segment. In addition, the injected grout is prone to backflow, which affects the effect of grouting. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art and provide a segment grouting method to solve the existing problems of gaps and water seepage between steel pipes and segments, as w...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08E21D11/10E21D11/38
CPCE21D11/083E21D11/10E21D11/381
Inventor 朱海良曹伟飚应卓清季军沈张勇潘军万洋倪筠倪臻
Owner 上海隧道工程智造海盐有限公司