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Second-liner branch warehouse pouring construction equipment for large-section tunnel and construction method

A technology of construction equipment and large cross-section, applied in the direction of tunnel lining, tunnel, mining equipment, etc., can solve the problem of difficult to guarantee the quality of concrete construction, and achieve the effect of sufficient working space for personnel, guaranteeing construction safety, and guaranteeing construction quality.

Inactive Publication Date: 2020-06-05
CHINA RAILWAY NO 3 GRP CO LTD +1
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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 concrete construction quality is difficult to guarantee in the conventional second lining sub-bin pouring method in the construction of the second lining of the large-section tunnel. To achieve the purpose of ensuring the construction quality of the second lining concrete

Method used

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  • Second-liner branch warehouse pouring construction equipment for large-section tunnel and construction method
  • Second-liner branch warehouse pouring construction equipment for large-section tunnel and construction method
  • Second-liner branch warehouse pouring construction equipment for large-section tunnel and construction method

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Embodiment 1

[0037] figure 1 The front view of the construction equipment for pouring the second lining in separate bins provided by this embodiment; image 3 for figure 1 side view.

[0038] Such as Figure 1-3 As shown, this embodiment provides a large-section tunnel two-lining sub-bin pouring construction equipment, including a formwork unit 12, an adjustment support unit and a portal unit, and the adjustment support unit is arranged between the formwork unit 12 and the portal unit. The unit 12 is provided with a reinforced back rib 23, one end of the adjustable support unit is connected to the reinforced back rib 23, and the other end of the adjusted support unit is connected to the door frame unit; the formwork unit 12 is provided with a first-level window 1, a second-level window 2, The third-level window 3 and the fourth-level window 4, the top of the formwork unit 12 is provided with a dome window 5; it also includes an interconnected ground pump and a concrete distribution unit...

Embodiment 2

[0045] Figure 4 Schematic diagram of different pouring areas for the second lining provided in this embodiment; Figure 5 Schematic diagram of pouring for first-level window 1; Figure 6 Schematic diagram of pouring for secondary window 2; Figure 7 Schematic diagram of pouring for the third-level window 3; Figure 8 Schematic diagram of pouring for the dome window 5.

[0046] This embodiment utilizes the construction equipment for pouring the second lining of the large-section tunnel in the embodiment 1 to carry out construction. The method includes the following steps:

[0047] Step 1: Open the first-level window 1, the operator is in place, and install the concrete distribution units on both sides;

[0048] Step 2: pumping concrete through the first-level window 1, so that the concrete pouring plane in the formwork unit 12 is flush with the first-level window 1;

[0049] Step 3: Open the secondary window 2, and pump concrete through the secondary window 2, so that the...

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Abstract

The invention provides second-liner branch warehouse pouring construction equipment for a large-section tunnel and a construction method, and relates to the technical field of tunnel engineering second liner construction. The second-liner branch warehouse pouring construction equipment is provided with template units, a primary window, a secondary window, a tertiary window, and a concrete distributing unit, wherein during second liner concrete pouring, concrete enters a main slide barrel through a pumping feeding hole, and sequentially flows to the primary window, the secondary window and thetertiary window through branch slide barrels, so that distribution of concrete is realized; after pouring of the primary window, the secondary window and the tertiary window is accomplished, pouring of an arch vertex and residual concrete is accomplished through a top roof-rushing window, so that sectional pouring of large-section tunnel second liner construction is realized, and construction quality is guaranteed; in a concrete pouring process of the primary window and the secondary window, concrete in template units at left and right sides can be manually vibrated, so that an operator can enter and exit templates from the primary window and the secondary window, and therefore, operation space of the operator is sufficient, and construction safety is guaranteed.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering secondary lining construction, in particular to construction equipment and a construction method for pouring the secondary lining of a large-section tunnel in separate warehouses. Background technique [0002] In the construction of the secondary lining of large-section tunnels, it is difficult to ensure the construction quality of the secondary lining concrete by the conventional layout of the window of the secondary lining trolley and the method of concrete diversion. At the same time, because the arch walls of large-section tunnels are often densely packed with steel bars, it is difficult to fully vibrate the concrete. It is difficult to meet the construction requirements of the secondary lining of large-section tunnels by the conventional method of pouring the secondary lining in separate bins. Contents of the invention [0003] The purpose of the present invention is to solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
CPCE21D11/105
Inventor 冯剑锋王成樊艳鹏赵省建云欣忠熊建辉李佳龙黄海波霍智慧史晋光刘明张胡腾
Owner CHINA RAILWAY NO 3 GRP CO LTD
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