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Multifunctional positioning fixture for inverted arch of tunnel

A positioning fixture and multi-functional technology, which is applied in tunnels, tunnel linings, shaft linings, etc., can solve the problems of inability to control the positioning of steel bars in construction and difficult operation, and achieve the effects of simple structure, easy operation, and cost reduction

Pending Publication Date: 2018-02-09
中铁隧道集团二处有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this utility model cannot control the positioning of the construction steel bar, and at the same time, the U-shaped clamp only forms the clamping of the waterstop through the screw rod and the movable splint, so the operation is relatively difficult

Method used

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  • Multifunctional positioning fixture for inverted arch of tunnel
  • Multifunctional positioning fixture for inverted arch of tunnel
  • Multifunctional positioning fixture for inverted arch of tunnel

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Embodiment Construction

[0027] The technical solution in the embodiment of the positioning fixture of the present invention will be further described in detail below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0028] Such as figure 1 As shown, the positioning fixture includes a waterstop positioning fixture 1, a fixture 2, a positioning ruler 3 and an inverted arch template 4, and the waterstop positioning fixture 1, fixture 2 and positioning ruler 3 are respectively welded on the inverted arch template 4 Above, the waterstop positioning jig 1 is used to accurately locate the waterstop to prevent the waterstop from being serpentine, not centered, not straight, or even buried outside the inverted arch and the second lining concrete. Fixture 2 is used to align the concrete Precise positioning of steel bars in the protective layer of steel bars improves the construction quality, and the positioning ruler 3 is used to measure the distance between the steel ...

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Abstract

The invention relates to a multifunctional positioning fixture for an inverted arch of a tunnel. The multifunctional positioning fixture comprises a water-stop belt positioning fixture body, a clamping tool, a positioning rule and an inverted arch template. The water-stop belt positioning fixture body, the clamping tool and the positioning rule are welded to the inverted arch template. The positioning fixture body can position a water-stop belt accurately, so that the situation that the water-stop belt is snakelike, not centered and not straight, and even embedded outside the inverted arch andsecondary lining concrete is avoided; and opposite-butting fixing steel bars do not need to be additionally welded, so that materials are saved, and the cost is reduced; the structure is simple, operation is easy, the construction efficiency is improved, and recycling can be achieved; and meanwhile, steel bars of an inverted arch lining of the tunnel can be positioned precisely, the constructionquality is improved, the intervals among the steel bar layers can be measured, and the steel bar layers can be positioned.

Description

technical field [0001] The invention belongs to the field of tunnel inverted arch construction, and in particular relates to a multifunctional positioning fixture for tunnel inverted arches. Background technique [0002] In the quality of tunnel construction, tunnel waterproofing and drainage is the focus and difficulty of construction quality, and the installation of tunnel waterstop is an important link in the tunnel waterproofing and drainage system. For the installation of tunnel waterstops, the current conventional method is to weld and fix steel bars on both sides of the waterstops. However, during the pouring of concrete and tamping, the waterstops may be serpentine, not centered, and not straight , Even buried outside the inverted arch and the second lining concrete, it will not be able to waterproof the construction joints. Once there is water seepage or leakage, it will have a great impact on the durability and usability of the tunnel. [0003] In addition, the po...

Claims

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Application Information

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IPC IPC(8): E21D11/38
CPCE21D11/381
Inventor 哈建波刘兴波吴相斌刘伟付彬彬任勇晋龙凤王远鹏马艳红王娜张磊岳琳琳陈海建颜飞龙陈鸿
Owner 中铁隧道集团二处有限公司