CONSTRUCTION METHOD FOR CORRUGATED PIPE TO PASS THROUGH PIPELINE BY MEANS OF RAIL SLIDERS IN SMALL UNDERGROUND SPACE

WIPO Patent Application WO/2023/025325

A1

A construction method for a corrugated pipe to pass through a pipeline by means of rail sliders in a small underground space. The construction method comprises the following steps: step 1, jacking an outer pipeline (1) to complete pipe jacking construction of the outer pipeline; step 2, laying a rail inside the outer pipeline; step 3, making a plurality of rail sliders according to the size of the laid rail; step 4, uniformly arranging the plurality of rail sliders at the bottom of a corrugated pipe (2), fixing the rail sliders to the corrugated pipe, and then placing, on the rail, the rail sliders where the corrugated pipe is mounted; and step 5, the corrugated pipe passing through the outer pipeline. By means of the construction method, a corrugated pipe passes through an outer pipeline by means of rail sliders, which saves on the mounting and debugging time of an apparatus and the construction cost, reduces the construction difficulty, improves the construction efficiency, reduces the construction investment, and can shorten the construction period and reduce the area of action.

WANG YIPING (CN)
LI YINGNAN (CN)
YIN SUJIANG (CN)
GU BO (CN)
GUO YUNPENG (CN)
ZHANG FENGQIAN (CN)

PCT/CN2022/115834

March 02, 2023

August 30, 2022

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CHINA RAILWAY NO 9 GROUP NO 4 ENG CO LTD (CN)
CHINA RAILWAY NO 9 GROUP CO LTD (CN)

F16L1/028; F16L1/06

CN114352804A	2022-04-15
CN109854813A	2019-06-07
CN110715111A	2020-01-21
CN106641440A	2017-05-10
CN215059992U	2021-12-07
JP2006104744A	2006-04-20
JP2019124275A	2019-07-25
GB0920737D0	2010-01-13

BEIJING HECHUANG ZHIXIN PATENT AGENCY CO., LTD (CN)

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