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Crawler-type lifting rack for tunnel variable cross-section contact channel construction and construction method

A communication channel and crawler-type technology, applied in tunnels, crawler vehicles, lifting devices, etc., can solve the problems of low construction efficiency and achieve the effects of improving construction efficiency, convenient use, and shortening construction time

Pending Publication Date: 2022-01-21
中铁十四局集团建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a construction method needs to repeatedly build a platform, and the construction efficiency is low.

Method used

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  • Crawler-type lifting rack for tunnel variable cross-section contact channel construction and construction method
  • Crawler-type lifting rack for tunnel variable cross-section contact channel construction and construction method
  • Crawler-type lifting rack for tunnel variable cross-section contact channel construction and construction method

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Experimental program
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Effect test

Embodiment 1

[0055] Such as Figure 1-Figure 3 As shown, the crawler-type elevating platform disclosed in this embodiment for the construction of the tunnel variable cross-section communication passage includes a left outer platform 003a, a right outer platform 003b, a left inner platform 007a, a right inner platform 007b, a first platform 009, a second Platform 014, jacking platform 016, support frame, hydraulic system and crawler mobile device.

[0056] The hydraulic system includes a power element and at least two oil cylinders, and the power element is connected with the oil cylinders. The number of oil cylinders and jacking platform 016 oil cylinders is set according to needs. In order to ensure sufficient stability of the platform, it is best to set at least three oil cylinders. In this embodiment, the hydraulic system includes left front oil cylinder 011a, left rear oil cylinder 011b, right front oil cylinder 011c, right rear Cylinder 011d.

[0057] The support frame stands on the...

Embodiment 2

[0094] In this embodiment, the left connecting beam 001a and the right connecting beam 001b are composed of two 18-gauge I-beams of the same type welded side by side. In the groove of 032, it plays the role of connecting the lower support column.

[0095] In particular, the track 034 is 6.0m long and 40.0cm wide, and there are two in total. There are two driving wheels 035 with a diameter of 60.0cm, which are respectively located behind the two crawler-type mobile devices. The diameter of the steering wheel 030 is 50.0cm, and there are two in total, which are respectively located in front of the two crawler-type mobile devices. The rolling wheel 029 has a diameter of 18.0cm, 28 in total, and 14 crawler-type moving devices on both sides. The distance between the centers of the adjacent rolling wheels 029 in the crawler-type mobile device is 40.0 cm.

[0096] There are two variable frequency motors 031 with a power of 45kw, which are respectively located at the tail or middle...

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Abstract

The invention relates to a crawler-type lifting rack for tunnel variable cross-section contact channel construction and a construction method. The crawler-type lifting rack comprises a crawler-type moving device, a supporting structure, a lifting system, a hydraulic system and the like. The crawler-type moving device mainly comprises a crawler, a connecting device, a variable frequency motor, a supporting platform, rollers, steering wheels and the like. The rack can be simply moved in some long tunnels, so that the construction is convenient; the supporting structure mainly comprises an upper supporting column, a lower supporting column, a connecting beam, inclined struts and the like; and the lifting system comprises four 8-ton oil cylinders and a lifting platform, and the hydraulic system provides power for the lifting system. A working plane with the corresponding height can be provided for workers, the tunnel construction time is greatly shortened, and operation is more convenient.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a crawler-type elevating platform and a construction method for the construction of a variable cross-section communication channel of a tunnel. Background technique [0002] When constructing the variable cross-section communication passage of the tunnel, because the depth of the communication passage is too long and the cross-sectional size is different, it will bring great difficulties to the construction. Build working platforms of different heights, and after completing the construction of a certain length of communication channel with the same cross-sectional size, remove the fixed platform in this section of communication channel, and then repeat the construction of the next section of communication channel. Such a construction method needs to repeatedly build a platform, and the construction efficiency is low. Contents of the invention [0003] In order to s...

Claims

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Application Information

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IPC IPC(8): E21D9/12B66F11/04B62D55/08
CPCE21D9/122B66F11/04B62D55/08
Inventor 周宝龙张鑫肖玉玲代显奇王伟伟周生勇朱礼臣董建辉谢飞鸿
Owner 中铁十四局集团建筑工程有限公司
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