Break-of-gauge beam for large and long foundation pits and construction method thereof

A technology of rail crossing and foundation pit, which is applied in the direction of rail system, trolley crane, load hanging element, etc., to achieve the effect of simple construction, convenient maintenance, simple and compact

Inactive Publication Date: 2009-09-23
CHINA RAILWAY TUNNEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the construction method of the prior art, one of the gantry crane track applications is set on the "rigid foundation enclosure structure crown beam", and the other is set on the "flexible foundation Bailey beam", and the large-span Bailey beam is used as the gantry crane track foundation no

Method used

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  • Break-of-gauge beam for large and long foundation pits and construction method thereof
  • Break-of-gauge beam for large and long foundation pits and construction method thereof
  • Break-of-gauge beam for large and long foundation pits and construction method thereof

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] In this embodiment, steel sleepers 2 are laid on the cross-rail beam of the present invention and the conventional reinforced concrete crown beam to form two gantry crane rails 3 of gantry crane 8, so that the space at the working well of the foundation pit can be effectively utilized to the greatest extent. , which solves the problem of narrow space and difficult layout at the working well. Such as figure 1 , figure 2 and image 3 As shown, the present invention is used for the cross-rail beam of long foundation pit, and it comprises base body 1 and the steel sleeper 2 that is used to install gantry crane track 3, and steel sleeper 2 is fixed on the top of base body 1, and described base body 1 is made of several pieces of shellfish. Mine sheet 4 is formed by being connected by pin shaft. In this embodiment, in order to p...

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Abstract

The invention provides a break-of-gauge beam for large and long foundation pits and a construction method thereof. The break-of-gauge beam comprises a matrix and steel sleepers for mounting gantry crane rails, wherein, the steel sleepers are fixed at the upper part of the matrix; and the matrix is formed by connecting a plurality of Bailey pieces via hinge pins. The construction method comprises the following steps: a. forming the matrix of the break-of-gauge beam by connecting a plurality of Bailey pieces via the hinge pins, and fixing two ends of the matrix into a concrete foundation provided with a U-shaped groove; b. mounting more than one supporting block below the middle part of the matrix, arranging a tray at the top of the supporting block and mounting steel plates between the tray and the matrix; and c. laying the steel sleeper for mounting the gantry crane rails at the upper part of the matrix to complete the construction of the break-of-gauge beam. The break-of-gauge beam for large and long foundation pits in the invention has the advantages of simple and compact structure, low cost, convenient construction, widely applicable range and high reliability.

Description

technical field [0001] The invention mainly relates to the design field of gantry crane tracks in foundation pits, in particular to a rail crossing beam used for long foundation pits and a construction method thereof. Background technique [0002] Long-term foundation pit gantry cranes are generally used in the vertical lifting of stations, subway foundation pits, shafts, etc. The gantry crane track is usually arranged longitudinally along the foundation pit, and the track foundation is also on the reinforced concrete foundation at a certain distance from the outside of the enclosure structure. The nature of the basic structure is the same, and its deformation is relatively small. It is not necessary to consider that its uneven settlement may endanger the driving safety of the gantry crane, and its planning, design and installation technology are relatively mature. However, in the construction method of the prior art, one of the gantry crane track applications is set on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C7/02B66C19/00
Inventor 任国宏
Owner CHINA RAILWAY TUNNEL
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