Precise pouring device and efficient construction method for constrained concrete arch

A technology for constraining concrete and arches, which is applied in earthwork drilling, shaft equipment, wellbore lining, etc., can solve the problems of no grouting system, influence on construction safety, low construction efficiency, etc., achieve good social and economic effects, and ensure The effect of pouring construction quality and improving construction efficiency

Active Publication Date: 2022-03-11
王琦 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When confining concrete pouring, due to the large size of the steel arch, the pouring volume and the high pouring pressure, it will generally cause problems such as grout leakage at the pouring port and failure to stop the grouting in time after the pouring is completed, affecting construction safety. There is no complete pouring system , resulting in low construction efficiency

Method used

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  • Precise pouring device and efficient construction method for constrained concrete arch
  • Precise pouring device and efficient construction method for constrained concrete arch
  • Precise pouring device and efficient construction method for constrained concrete arch

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Experimental program
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Embodiment 1

[0039] Attached below figure 1 - attached Figure 5 The perfusion device disclosed in this embodiment is further described;

[0040] Refer to attached figure 1 As shown, the precise pouring device for the constrained concrete arch includes a core pouring component welded on the outside of the bottom of the 2 legs of the constrained concrete arch, a high-strength delivery pipe 13 and a joint ring buckle device; the core pouring component is embedded with the high-strength delivery pipe 13, wherein The inner diameter of the port of the high-strength delivery tube is smaller than the inner diameter of the connection port at the end of the core perfusion component; the joint ring lock device will lock the connection port in a circular direction after the perfusion component is connected to the high-strength delivery tube to ensure that the connection port will not be squeezed under high-pressure perfusion open.

[0041] The high-strength conveying pipe 13 can adopt the high-str...

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PUM

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Abstract

The invention discloses a precise pouring device and a high-efficiency construction method for constrained concrete arches, including a core pouring component, a high-strength delivery pipe, and a joint buckle device; The connection between the two is locked and fastened by the joint ring buckle device; the connecting plate has an internal delivery pipeline to communicate with the grouting inlet of the arch frame, an opening is set on the top of the connecting plate, and a grout blocking plate that can move up and down is arranged in the opening , The grout blocking plate can drop to the bottom of the connecting plate to block the grouting inlet. With this pouring device, after the pouring is completed, the grout blocking plate can be inserted into the pouring member to seal the pouring port, the grout can be stopped in time, the pouring quality can be ensured, the pouring efficiency can be improved, and the support effect of the confined concrete arch can be improved.

Description

technical field [0001] The disclosure belongs to the technical field of arch pouring, and in particular relates to a precise pouring device and an efficient construction method for constrained concrete arches. Background technique [0002] In underground engineering, especially in deep large-deformation roadways and tunnels with complex conditions, engineering support is difficult under complex geological conditions such as high ground stress, faults, and soft rock with large deformation. Traditional supports such as U-shaped steel and anchor rods The support method cannot meet the requirements of stable support. The research and development of the confined concrete arch can provide high-strength support and improve the stability of the supporting roadway tunnel, which is suitable for tunneling projects under various complex conditions. Therefore, a large number of confined concrete arches are required for surrounding rock control. [0003] Confined concrete arches can be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10E21D11/18
CPCE21D11/10E21D11/105E21D11/18
Inventor 王琦张朋曾昭楠江贝樊祥福
Owner 王琦
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