A rapid support method for pipe jacking in case of obstruction
A technology of pipe jacking and obstruction, which is applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc. It can solve the problems of high cost and slow processing progress of surrounding rock support, and improve the installation completion time , The installation process is convenient, and the effect of improving the construction speed
Active Publication Date: 2019-11-08
CHONGQING CONSTR RESIDENTIAL ENG +3
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a fast support method for pipe jacking in case of obstruction and escape, so as to solve the existing problems in the processing process of pipe jacking in case of obstruction and escape in the prior art. slow, and the cost of surrounding rock support is high
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
[0031] A rapid support method for pipe jacking when encountering obstacles and getting rid of difficulties. During the pipe jacking construction process, when the segment is blocked and cannot continue, there are the following two situations: Situation 1: When the periphery of the segment is wrapped by a small amount of loose slag At that time, in order to quickly solve the problem of segment obstruction, a segment that is easy to remove loose slag was used for pipe jacking construction, including the pipe jacking segment body 1, and the pipe wall of the pipe jacking segment body 1 was evenly distributed with Multiple groups of slag removal hole parts, each group of slag removal hole parts include multiple slag removal holes 2; multiple groups of slag removal hole parts are arranged on the pipe jacking segment body 1 along its axial direction, and multiple slag removal holes 2 are arranged in the The pipe jacking segment body 1 is arranged along its circumference, and the slag ...
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 discloses a quick supporting method for cleaning blocked segments in pipe jacking. The quick supporting method includes the construction steps of planning out quantity and position of cleaning pipe joints according to needs for arrangement of each intermediate jacking station and installing the cleaning pipe joints among segments before pipe jacking construction; on the circumstancethat segments are blocked, installing one telescopic separating mechanism between each two tooling pipe joint and separating the tooling pipe joints from a spacing pipe joint through the telescopic separating mechanism; driving the blocked segments to move, connecting the tooling pipe joints with the corresponding spacing pipe joint through retraction of the telescopic separating mechanism; cleaning rock wall dregs at the backs of the segments which have been moved through cleaning equipment or manual manner, and transporting the collected dregs out of the construction site; installing a rocksupport arch ring to the cleaned rock walls through a support installation mechanism of the supporting device; starting a jacking mechanism at the end of each intermediate jacking station and jackingthe cleaned segments forwards. Compared with the prior art, the quick supporting method has the advantages of increasing construction speed of cleaning blocked segments in pipe jacking and lowering cost.
Description
technical field [0001] The invention relates to the technical field of pipe jacking construction, in particular to a quick support method for pipe jacking when encountering obstacles and getting rid of difficulties. Background technique [0002] In the long-distance and large-diameter pipe jacking construction in mountainous areas, the pipe jacking machine passes through different geology. During the advancement of the segment, it often passes through unfavorable geology, which causes the friction-reducing mud around the segment to fail, and loose slag is wrapped around the segment, increasing the Segment advancing resistance, when severe, causes the segment to fail to advance, and measures can only be taken to solve the problem of the segment being blocked. Existing treatment measures for getting rid of difficulties usually adopt cutting off part of the pipe joints, clearing the loose slag behind the segments, and implementing surrounding rock support. Surrounding rock sup...
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 Patents(China)
IPC IPC(8): F16L1/028F16L1/036
CPCF16L1/028F16L1/036
Inventor 曾凡贵王春萱王悦王清江夏成林刘远良
Owner CHONGQING CONSTR RESIDENTIAL ENG