Movable type trolley for bored tunnel construction and construction method of movable type trolley

A technology for tunnel construction and construction methods, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve the problems of difficult civilized construction management, many safety risk sources, and high formwork loss, and achieve cost savings for side wall formwork reinforcement measures, The effect of orderly construction environment and high trolley utilization

Active Publication Date: 2018-01-26
CHINA RAILWAY NO 2 ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the existing construction method of underground excavation existing in the prior art, such as large resource investment, slo

Method used

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  • Movable type trolley for bored tunnel construction and construction method of movable type trolley
  • Movable type trolley for bored tunnel construction and construction method of movable type trolley
  • Movable type trolley for bored tunnel construction and construction method of movable type trolley

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] Example 1

[0044] Such as Figure 1-2 As shown, a mobile trolley used for the construction of a digging tunnel includes two trolley masts 2 installed on both sides of a center pillar 12 that has been constructed, and the two trolley masts 2 pass through a workshop support rod 1 Detachable connection, the running wheel 3 installed under the trolley mast 2 and the matching track 4 installed on the track foundation 13 and matched with the running wheel 3, in the trolley mast 2 Suspension arms 14 extend out from the left and right sides respectively, and the suspension arms 14 are connected with a formwork frame 7, and there are hydraulic struts 5 and a number of ordinary struts 6 between the trolley mast 2 and the formwork framework 7. A side wall template 8 is bolted to the template skeleton 7.

[0045] Such as Figure 1-4 As shown, each trolley mast 2 includes several trolley beams 21 parallel to each other. Both ends of each trolley beam 21 are connected with trolley colu...

Example Embodiment

[0048] Example 2

[0049] Such as Figure 5 As shown, a construction method of a mobile trolley for underground excavation tunnel construction includes using any one of the mobile trolleys for underground excavation tunnel construction, and includes the following construction steps:

[0050] Step 1: Lay the track foundation 13, set the isolation layer, and pour the foundation concrete;

[0051] Step 2: Install the supporting track 4 for trolley traveling;

[0052] Step 3: Assemble the trolley mast 2 and install the suspension arm 14, hydraulic strut 5 and running wheel 3;

[0053] Step 4: Install the formwork frame 7 on the suspension arm 14 and connect the side wall formwork 8 on the outside of the formwork frame 7;

[0054] Step 5: Binding of side wall steel bars is completed;

[0055] Step 6: The trolley runs and locates, and at the same time adjust the position of the side wall formwork 8 and the side wall formwork 8 position;

[0056] Step 7: Set up the trolley roof platform 11, insta...

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Abstract

The invention discloses a movable type trolley for bored tunnel construction. The movable type trolley comprises a trolley portal frame, walking wheels mounted on the lower portion of the trolley portal frame and matched rails adaptive with the walking wheels. Suspension arms extend out of the left side and the right side of the trolley portal frame correspondingly, the suspension arms are connected with a formwork skeleton, and a hydraulic supporting rod is further arranged between the trolley portal frame and the formwork skeleton. In the bored tunnel construction process, if the movable type trolley is adopted to conduct construction, the formwork skeleton can be suspended on the trolley directly through the suspension arms, after the position of the formwork skeleton is adjusted and positioned through the hydraulic supporting rod, a formwork for construction can be directly mounted on the outer side of the formwork skeleton, after that, concrete is poured on the formwork and maintenance is conducted, construction is convenient and rapid, and thus the construction progress can be accelerated greatly. After construction is completed, the formwork is separated from the concrete, the trolley can directly walk to a next construction section to conduct construction after the formwork is taken back, the utilization rate of the device is high, and thus the construction cost is lowered greatly.

Description

technical field [0001] The invention relates to the field of tunnel and underground engineering construction, in particular to a mobile trolley for underground excavation tunnel construction and a construction method thereof. Background technique [0002] According to the excavation method of the tunnel, it can be divided into open-cut tunnel and underground tunnel. Because the open cut method greatly interferes with the surrounding environment and affects the normal traffic on the ground, it is becoming less and less applicable in the construction of urban rail transit. At the same time, the open cut method is more and more used in urban tunnels due to its strong adaptability to the modern urban environment. under construction. [0003] At present, the side walls, air ducts, and mid-slabs of underground excavation tunnels are usually constructed by erecting steel pipes with full supports and combined formwork. The main construction sequence is bottom slab → side walls → ai...

Claims

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Application Information

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IPC IPC(8): E21D11/10
Inventor 朱志雄杨文富陈通朱自祥杨家松张焰潘前外
Owner CHINA RAILWAY NO 2 ENG GRP CO LTD
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