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Construction technology of mobile pouring for concrete trolley supported by bolt and shotcrete in tunnel

A construction technology and concrete technology, applied in tunnels, tunnel linings, earthwork drilling, etc., can solve problems such as large rebound amount and concrete waste, and achieve the effects of avoiding waste, shortening construction time, and reducing labor costs.

Active Publication Date: 2019-09-03
涪特智能装备(重庆)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing tunnel anchor-spray support concrete spraying is all direct anchor-spray, the rebound amount is large, and the concrete waste is serious

Method used

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  • Construction technology of mobile pouring for concrete trolley supported by bolt and shotcrete in tunnel
  • Construction technology of mobile pouring for concrete trolley supported by bolt and shotcrete in tunnel

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Experimental program
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Embodiment Construction

[0025] Further detailed explanation through specific implementation mode below:

[0026] The reference signs in the accompanying drawings of the description include: translational track 1, arc track 2, sliding form trolley 3, pulley 4, support plate 5, support 6, sliding form trolley body 7, steel mold 8, roller 9, rolling form Roller 10, electric winch 11, ring transmission rope 12, walking wheel 13, arch frame 14, guide wheel 15, construction trolley 16.

[0027] Examples of the present invention figure 1 and figure 2 As shown, the mobile pouring formwork and construction technology for the concrete trolley for anchoring and shotcreting support of the tunnel, the specific steps are as follows:

[0028] Step 1: Treatment of the rock surface affected by spraying. Generally, high-pressure water is used to wash the floating dust and cuttings on the rock surface of the sprayed rock surface.

[0029] Step 2: Concrete mixing and transportation. Wet shotcrete mixing adopts fully...

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Abstract

The invention relates to the field of tunnel construction, and specifically discloses a movable filling template for a tunnel bolt-shotcrete support concrete trolley and a construction technology thereof. The construction technology specifically includes the following steps that first, a sprayed rock surface is treated; second, concrete is stirred and transported; third, a cave wall is closed; fourth, the movable filling template is arranged in place; fifth; the filling operation is carried out; and sixth, the maintenance is carried out. Bolt-shotcrete supporting is carried out successively through a slipping form trolley, and the waste caused by concrete rebound is avoided. The construction time is short, the automation level is high, and the labor cost is reduced.

Description

technical field [0001] The invention relates to the field of tunnel construction. Background technique [0002] In tunnel construction, according to the different types of tunnel rocks and excavation sections, tunnel excavation can be divided into full-section method, upper and lower steps method, partial excavation method and other construction methods. According to the principle of the New Austrian Method, as a part of the permanent lining of the tunnel, the bolt-shotcrete support is generally considered to be used in the surrounding rock of grade III and above; the bolt-shotcrete support is used as a flexible support, and the deformation amount before the secondary lining Larger, the outer contour of the excavation needs to reserve a large space (20cm) for deformation; the anchor shotcrete support must be in close contact with the surrounding rock mass as much as possible, that is, to ensure that the support and the surrounding rock act as a The unified support system wo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
CPCE21D11/102E21D11/105
Inventor 龚岗王双卯郭宝库
Owner 涪特智能装备(重庆)有限公司