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An extendable tunnel excavation trolley and its construction method

A tunnel excavation and construction method technology, applied in the direction of tunnel, tunnel lining, earthwork drilling and mining, etc., can solve the problems of high cost, increase and waste of the overall project cost, etc., and achieve the effect of convenient movement, easy operation and high efficiency

Active Publication Date: 2020-02-18
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It takes a high cost to make the trolley, which increases the waste of the overall project cost

Method used

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  • An extendable tunnel excavation trolley and its construction method
  • An extendable tunnel excavation trolley and its construction method
  • An extendable tunnel excavation trolley and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0018] see Figure 1 ~ Figure 3 , the present invention provides a technical solution: an extendable tunnel excavation trolley, comprising: a portal frame top beam 1, a portal frame upper vertical beam 2, a portal frame lower vertical beam 3, an operating platform 4, two Operation platform 5, three-frame operation platform 6, gantry bottom longitudinal beam 7, walking tire 8, diagonal bracing, gantry top longitudinal beam 13, gantry middle longitudinal beam 14, gantry middle upper vertical beam 15, gantry middle lower Vertical beams 16, hoop hinges 17, the gantry top beam 1 is fixedly connected with the gantry top longitudinal beam 13, and the slant braces include an inner slant brace 9, an outer slant brace 10, two outer slant braces 11, Three outer diagonal braces 12, the upper vertical beam 2 of the portal frame is fixedly connected under the top beam 1 of the portal frame, the lower part of the upper vertical beam 2 of the portal frame is fixedly connected with the lower v...

Embodiment 2

[0024] see Figure 1 ~ Figure 3 , the present invention provides a technical solution: determine the height and width of the trolley according to the excavation section size of the tunnel, and select suitable I-beams, telescopic steel pipes and high-quality tires.

[0025] Choose suitable I-beams to make the bottom longitudinal beam 7 of the mast, and weld it firmly with the wheel axle of the walking tire 8;

[0026] Use high-quality telescopic steel pipes to make the lower vertical beam 3 of the mast, and weld it firmly with the bottom longitudinal beam 7 of the mast;

[0027] Select suitable I-beams to make the upper vertical beam 2 of the mast, and the upper vertical beam 2 and the lower vertical beam 3 are welded firmly;

[0028] Select the appropriate I-beam to make the top beam 1 of the mast, and the top beam 1 and the upper vertical beam 2 are welded firmly;

[0029] Choose suitable channel steel to make the middle longitudinal beam 14, and the middle longitudinal bea...

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PUM

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Abstract

The invention discloses an extensible tunnel excavation trolley. The extensible tunnel excavation trolley comprises a door frame top beam, a vertical beam on the door frame, a vertical beam under thedoor frame, an operating platform with one supporting frame, an operating platform with two supporting frames, an operating platform with three supporting frames, a door frame bottom stringer, walkingtires, a diagonal support, a door frame top stringer, a door frame middle stringer, a vertical beam on the middle of the door frame, a vertical beam under the middle of the door frame and hoop hinges; a construction method of the extensible tunnel excavation trolley is to select suitable high-quality joist steels and retractable casings to make corresponding parts and to assemble; and when the reserved core soil annular excavation method is carried out, the vertical beam under the door frame, an internal diagonal support, the diagonal support, the vertical beam under the middle of the door frame, the operating platform with one supporting frame and the operating platform with two supporting frames are all contracted respectively, and the trolley is contracted to the minimum form.

Description

technical field [0001] The invention belongs to the field of expressway tunnel construction, in particular to an extendable tunnel excavation trolley and a construction method thereof. Background technique [0002] The invention belongs to the field of expressway tunnel construction, and in particular relates to a tunnel excavation jumbo capable of meeting the requirements of different surrounding rocks and a construction method thereof. [0003] With the rapid development of my country's expressway construction and the further improvement of the national expressway network, more and more expressway projects will be built in the southwest mountainous areas, and tunnel projects will become more and more popular to cross mountains. The integrity of geological surrounding rocks in Southwest China is generally poor and varies greatly, and often a tunnel will involve several types of surrounding rocks such as III, IV and V. Under the guidance of the principle of the New Austrian...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D11/00
CPCE21D9/00E21D11/003
Inventor 刘道兵胡芳竑朱波
Owner CHINA MCC17 GRP