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Construction method for rectangular parallel top pipe connection channel

A construction method and communication channel technology, applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve the problems of high cost, complicated process, and long construction period, and achieve the effects of low cost, clear force, and short construction period

Active Publication Date: 2015-10-07
HOHAI UNIV
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Problems solved by technology

However, this technology is too complicated for the construction of small-pitch rectangular pipe-jacking tunnel communication channels, and the cost is too high and the construction period is long

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  • Construction method for rectangular parallel top pipe connection channel
  • Construction method for rectangular parallel top pipe connection channel
  • Construction method for rectangular parallel top pipe connection channel

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with specific examples.

[0026] In order to solve the traffic problem of residents on both sides of a closed expressway in a city, two pedestrian passages need to be excavated under the established expressway. The construction method adopted is the rectangular pipe jacking method, and there are two parallel tunnels. The average buried depth of the tunnels is 6 meters, the net spacing is 0.6 meters, and the tunnel length is 110 meters. The cross-sectional width of the jacking segment is 7 meters, the height is 5 meters, and the thickness is 0.5 meters. It is planned to set up a connecting passage between two parallel tunnels. After the jacking construction is completed, it will be realized by excavating a special pipe joint. The length of the special pipe joint is 7.5 meters, the opening height is 3.35 meters, and the width is 5 meters.

[0027] like Figure 1 to Figure 4 As shown, the construction m...

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Abstract

The invention discloses a construction method for a rectangular parallel top pipe connection channel. By means of welding steel pipe embedding and cutting and holing in a segmented and partitioned mode, the technical problem existing in construction of the small-distance parallel top pipe connection channel is solved, and a solution different from a common processing means is given. Compared with the prior art, the construction method has the following advantages that the construction method is easy and feasible, and the construction period is short; a support system is accurate in stress, firm, reliable and small in risk; the soil body disturbance range is small, and the effect on the surrounding environment is extremely low; a traditional freezing construction method is avoided, and cost is low; fifthly, the construction method is not limited by the type of soil bodies, and adaptability is high.

Description

technical field [0001] The invention relates to a construction method of an underground communication channel, in particular to a construction method of a small-distance rectangular parallel pipe jacking communication channel. Background technique [0002] The setting of the communication channel enables people to transfer to another tunnel through the communication channel and quickly realize evacuation to the ground when sudden natural disasters such as fire, water gushing, and collapse occur in one tunnel. At the same time, it can also be used by firefighters. Tunnel construction risks mainly exist in two stages: tunnel excavation and communication channel construction, among which communication channel accidents are the most common. The construction of the communication channel is usually carried out by the underground excavation method. Often due to the quality of soil reinforcement, the soil on the excavation surface of the communication channel will be unstable, which...

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Application Information

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IPC IPC(8): E21D9/10E21F11/00E21D11/10
Inventor 孙阳瞿秋马志国苏静波夏莉敏吴飞
Owner HOHAI UNIV
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