Flexible lap template assembly for lining trolley and flexible lap construction method thereof

A technology for lining trolleys and connecting templates, which is applied in wellbore lining, tunnel lining, earthwork drilling and mining, etc. It can solve problems such as construction joints, fractures, and rigid lap joints of staggered platforms, so as to prevent staggered platforms, avoid damage, easy-to-handle effects

Active Publication Date: 2018-12-07
CHINA RAILWAY NO 17 BUREAU GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of grout leakage, platform dislocation and construction joint fracture caused by the rigid overlap between the formwork of the lining trolley and the formed secondary lining, and to provide a flexible lap formwork for the lining trolley Component and its flexible lap joint construction method

Method used

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  • Flexible lap template assembly for lining trolley and flexible lap construction method thereof
  • Flexible lap template assembly for lining trolley and flexible lap construction method thereof

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Embodiment Construction

[0017] In order to illustrate the embodiment of the present invention or the technical solution in the prior art more clearly, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0018] See attached figure 1 and figure 2 , a flexible lap formwork for a lining trolley provided by the present invention and a flexible lap construction method thereof will now be described.

[0019] A flexible lap formwork assembly for lining trolleys such as figure 2 As shown, it includes a vault formwork 11, a side wall formwork 12 located on both sides of the vault formwork 11, and an end formwork 13. structure, the end formwork 13...

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PUM

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Abstract

The invention belongs to the field of construction of tunnel secondary lining concrete, relates to no-damage lap between the rear portion of a tunnel secondary lining trolley and formed secondary lining concrete, and particularly discloses a flexible lap template assembly for the lining trolley and a flexible lap construction method thereof. The template assembly is formed jointly by a vault template, two side wall templates and an end mould, a limiting part is arranged on the other end, opposite to the end mould, on the template assembly in an extending mode, an annular recessed cavity coaxial to the template assembly is formed in the arc face of the limiting part, and an annular inflation bag is arranged in the annular recessed cavity. The annular inflation bag is provided with an air inlet and an air outlet, and the annular inflation bag which is inflated and expanded is extruded and matched with a formed secondary lining inner curved surface and the annular recessed cavity. The flexible lap template assembly for the lining trolley is reasonable in design, the flexible lap between the lining trolley and the formed secondary lining is realized by using the annular inflation bag,the damage to the formed secondary lining can be effectively avoided and the common quality problems such as wrong platform and pulp leakage of the annular lap position of the secondary lining concrete poured in section are prevented, and high practical value is achieved.

Description

technical field [0001] The invention belongs to the construction field of tunnel secondary lining concrete, and relates to the damage-free lap joint between the rear part of the tunnel secondary lining trolley and the formed secondary lining concrete, in particular to a flexible lap template assembly of the lining trolley and its flexible lap joint construction method. Background technique [0002] The secondary lining of the tunnel is a permanent reinforced concrete structure of the tunnel formed by the lining trolley + pumped concrete pouring process. The quality of tunnel secondary lining concrete is a key link in construction quality control, and it is a problem related to tunnel operation safety and service life. [0003] The lining trolley consists of a vault formwork 11, a side wall formwork 12 located on both sides of the vault formwork 11, an end formwork 13, a support structure 2, several hydraulic jacks 3, and a running system 4. The vault formwork 11 and The si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
CPCE21D11/10E21D11/102
Inventor 郝玉强王新民徐兴伟李冰
Owner CHINA RAILWAY NO 17 BUREAU GRP
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