Punching rock breaking barrier cleaning method in pipe-jacking construction
A technology of obstacle removal during construction, applied in the field of obstacles, can solve the problems that obstacles such as rocks and other obstacles cannot be removed by pipe cleaning and blasting, and site conditions are limited, so as to achieve convenient implementation, short obstacle removal period, and low cost of rock breaking Effect
Inactive Publication Date: 2013-06-19
SHANGHAI FOUND ENG GRP
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Problems solved by technology
[0003] The present invention aims to solve the technical problem that obstacles such as rocks and other obstacles cannot be removed by pipe jacking due to site conditions, and provides a punching, rock breaking and obstacle removal method in pipe jacking construction.
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[0010] Below in conjunction with specific examples, the implementation manner of the patent of the present invention is further described. It should be understood that these examples are only used to illustrate the patented invention and are not intended to limit the scope of the patented invention. In addition, it should be understood that after reading the content taught by the patent of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0011] The specific implementation method of the present invention will be described in combination with the punching, rock-breaking and barrier-clearing construction of the original water pipe and canal relocation project of Xiamen Jixing Seawall.
[0012] Firstly, a construction site is filled in the rock-breaking area, and the punching pile machine is in place t...
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The invention relates to a punching rock breaking barrier cleaning method in pipe-jacking construction. The method includes that when a pipe-jacking is confronted with rocks and other barriers, and cannot advance forwards, firstly, a punching bored concrete pile machine is used for carrying out punching and crushing over the rocks which invade a pipe-jacking advancing route range, and then circulatory mud is used for discharging the broken rock ballast, low intensity mortar is recharged back to a punching hole to enable the mortar to be dense. After a mortar filling body is cut by the pipe-jacking, the pipe-jacking continues to advance forwards. An extremely common punching bored concrete pile construction device can be used for breaking down the underground rocks and other barriers which prevent the pipe-jacking construction. Environmental using limits are little. The punching rock breaking barrier cleaning method in the pipe-jacking construction has the advantages of being simple and practical, low in rock-breaking cost and short in barrier-cleaning work period. Multiple devices can be worked at the same time. The punching rock breaking barrier cleaning method firstly uses punching to break the rocks and clear the barriers in the pipe-jacking construction. The successful experience can lead projects of the same type in the construction.
Description
technical field [0001] The invention relates to a method for punching holes, breaking rocks and removing barriers in pipe jacking construction, in particular to a method for removing obstacles such as rocks intruding into the pipe jacking path range during pipe jacking construction. Background technique [0002] When obstacles such as rocks intruding into the pipe jacking path range cannot be continued during pipe jacking construction, the air pressure balanced tool pipe can use air pressure protection to manually remove obstacles in the pipe, which is very inefficient and poses a greater safety risk; muddy water The balanced and earth pressure balanced pipe jacking methods need to adopt the method of clearing obstacles outside the pipe. Generally, the blasting method is used. The disadvantage is that after the blasting, a large area and deep excavation is required to remove the slag, and then backfill sand, soil and other materials to the site. The thickness of the ...
Claims
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IPC IPC(8): F16L1/028
Inventor 黄磊
Owner SHANGHAI FOUND ENG GRP