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Construction method of an underground vaulted roof

A construction method and arched roof technology, which can be used in earth drilling, mining equipment, tunnels, etc., can solve the problems of low section utilization, impact on road traffic, and many safety risks, so as to achieve low construction costs, speed up excavation progress, waste reduction effect

Active Publication Date: 2016-11-02
JINAN RAILWAY TRANSPORT GRP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

Among them, the shield tunneling method is suitable for medium-soft soil layers and interval tunnels with large buried depths. Shield segments are used for support, which has the disadvantages of high cost, long preparation time, shield wells affecting road traffic, and low section utilization. and other defects
The shallow buried excavation method uses steel grids, shotcrete, and molded concrete to form a support system. Reinforced concrete needs to be cast underground, which has defects such as long construction period, poor working environment, many safety risks, and difficult quality assurance.

Method used

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  • Construction method of an underground vaulted roof
  • Construction method of an underground vaulted roof
  • Construction method of an underground vaulted roof

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Embodiment Construction

[0037] In order to clearly illustrate the technical features of this solution, the specific implementation of the present invention will be further described below according to the accompanying drawings.

[0038] A construction method for an underground vaulted roof, comprising the following construction steps:

[0039] a: Drill a groove 1 along the end profile of the prefabricated arched roof 2 on the tunnel section, the depth of the groove 1 is equal to the length of the prefabricated arched roof 2, see the schematic diagram figure 1 , figure 2 ;

[0040] b: Use hoisting equipment to help push the prefabricated arched roof 2 into the groove 1, so that the two sides of the prefabricated arched roof 2 overlap with the concrete precast piles 3 on both sides of the tunnel, and the concrete precast piles 3 are equipped with The corbel 4, the two sides of the prefabricated arched roof 2 are lapped on the corbel 4, the schematic diagram is shown in image 3 , Figure 4 ;

[0...

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Abstract

The invention relates to the technical field of construction engineering, in particular to a construction method of an underground arch roof plate. The construction method comprises main steps as follows: a groove is drilled, prefabricated arch roof plates are pushed in the groove, a pipe roof is mounted for advanced support, soil in the pipe roof support range is dug, the prefabricated arch roof plates are overlapped and connected into a whole, the pipe roof is drawn out, holes are backfilled and the like. According to the construction method, the quality is reliable, the cost is low, environmental protection and energy conservation are realized, the construction is simple and safe, the construction period is short, and the waterproof effect is good.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a construction method for an underground arched roof. Background technique [0002] The current construction methods of interval tunnels mainly include shield tunneling method or shallow buried underground excavation method. Among them, the shield tunneling method is suitable for medium-soft soil layers and interval tunnels with large buried depths. Shield segments are used for support, which has the disadvantages of high cost, long preparation time, shield wells affecting road traffic, and low section utilization. and other defects. The shallow buried excavation method uses steel grids, shotcrete, and molded concrete to form a support system. Reinforced concrete needs to be cast underground, which has defects such as long construction period, poor working environment, many safety risks, and difficult quality assurance. Contents of the invention [0003] The ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06
CPCE21D9/06E21D9/0607
Inventor 王国富
Owner JINAN RAILWAY TRANSPORT GRP CO LTD
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