Confined concrete arch frame precise filling device and efficient construction method

A technology that constrains concrete and arches, applied in earthwork drilling, shaft equipment, wellbore lining, etc., can solve problems such as no grouting system, affecting construction safety, and grout leakage at the grouting port position, achieving good social and economic effects , Guarantee the quality of perfusion construction, and ensure the effect of perfusion compaction

Active Publication Date: 2020-03-31
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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  • Confined concrete arch frame precise filling device and efficient construction method
  • Confined concrete arch frame precise filling device and efficient construction method
  • Confined concrete arch frame precise filling device and efficient construction method

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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 pipe is smaller than the inner diameter of the connection port at the end of the core perfusion component; the joint buckle device locks 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-strength a...

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Abstract

The invention discloses a confined concrete arch frame precise filling device and an efficient construction method. The device comprises a core filling component, a high-strength conveying pipe and ajoint ring buckle device; the core filling component comprises a joint plate; the high-strength conveying pipe is in embedded connection with the joint plate, and the connected place of the two is locked and fastened through the joint ring buckle device; an internal conveying pipeline is arranged in the joint plate for communicating with a grouting injection port of an arch frame; an opening is formed in the top of the joint plate; a pulp stop insertion plate capable of moving up and down is arranged in the opening; and the pulp stop insertion plate can fall to the bottom of the joint plate toblock the grouting injection port. In the filling device, the pulp stop insertion plate can be inserted in the filling component to block the injection port after completion of filling for timely pulp stop, so that the filling quality is guaranteed, the filling efficiency is improved, and the confined concrete arch frame supporting effect is 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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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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