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A three-step construction technology based on a tunnel excavation and support integrated trolley

A technology of tunnel excavation and construction technology, which is applied in the direction of tunnels, tunnel linings, shaft equipment, etc., which can solve problems such as high use and maintenance costs, expensive equipment, and single functions, and achieve improved construction quality, high degree of automation, and safety. The effect of high coefficient

Active Publication Date: 2022-07-05
HAN JIANG HEAVY IND CO LTD 11TH BUREAU GRP CRCC +1
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Problems solved by technology

[0003] However, the mechanized construction method using rock drilling rigs as the main construction equipment can only achieve rapid construction under the condition of good stability of hard rock or surrounding rock, and the equipment is expensive, has a single function, and is difficult to use and maintain. Form advanced mechanized operation lines on most projects

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  • A three-step construction technology based on a tunnel excavation and support integrated trolley
  • A three-step construction technology based on a tunnel excavation and support integrated trolley
  • A three-step construction technology based on a tunnel excavation and support integrated trolley

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Embodiment Construction

[0063] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0064] The overall structure of the tunnel excavation and support integrated trolley provided in this embodiment is as follows: figure 1 and figure 2 As shown in the figure, it includes a car body, an electro-hydraulic system located on the car body that provides operating power for each component on the trolley, a working arm 3 for tunnel excavation and support construction, a running mechanism 4 connected to the bottom of the car body, and The support mechanism 5 and the arch frame installation unit, wherein the vehicle body includes a platform 1 and a working platform 20 . The integrated trolley can realize the integration of drilling and blasting, charging, arch pre-installation, bolt hole, bolt installation grouting, arch mesh installation, milling operation, concrete wet spraying operation, etc. It is suitable for tunnel construction of various c...

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Abstract

The invention is a three-step construction technology based on a tunnel excavation and support integrated trolley, and provides a three-step reserved core soil construction technology for a tunnel, including the platform position, and the upper platform moves longitudinally forward to perform advanced support. . After the advance support is completed, the drilling operation on the upper step face is started and after the drilling is completed, the working attachment of the working arm on the upper bench is replaced with a planer and milling machine assembly for milling and excavation of the upper step, and cleaning after milling and excavation Muck, while cleaning the muck, replace the attachment of the working arm on the bench with the wet spraying machine assembly, and connect the wet spraying material supply system to carry out the initial spraying operation of the upper steps. This construction process consists of excavation. , The installation of arch frame, bolt and wet spraying support is integrated, and there is no need for multiple equipment to work alternately. At the same time, the operation method of milling and spraying is adopted, which reduces the disturbance of surrounding rock, realizes fast digging, fast support and parallel operation, and improves construction efficiency. .

Description

technical field [0001] The invention belongs to the field of tunnel construction, and in particular relates to a three-step construction technique based on a tunnel excavation and support integrated trolley. Background technique [0002] At present, there are two main ways of tunnel excavation construction: one is the operation method that uses the artificial gantry as the working platform and the hand-held or hydraulic drilling rig as the tool; the other is the mechanized construction method that uses the rock drilling rig as the main construction equipment. The first method is flexible and adaptable, especially suitable for changing and complex surrounding rock conditions, with high efficiency, but high labor intensity and high risk. At the same time, with the rapid growth of labor costs, construction equipment manufacturing technology With continuous development and innovation, the advantages of manual excavation over rock drilling rig construction no longer exist. The u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D9/10E21D9/11E21D9/12E21D11/10E21D11/18E21D11/40E21D20/00E21D11/15
CPCE21D9/006E21D9/10E21D9/11E21D9/12E21D11/10E21D11/18E21D11/40E21D20/00E21D20/003E21D11/152
Inventor 周聪王文胜张光明吕虎刘新华王嵽显何亮陈晓飞杨奥飞杜小刚
Owner HAN JIANG HEAVY IND CO LTD 11TH BUREAU GRP CRCC
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