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Device and method for assembling and disassembling truss coupling-beam type gantry crane in tunnel

A technology of connecting beams and inner trusses, applied in hoisting devices, hoisting equipment braking devices, cranes, etc., can solve problems such as inability to install gantry cranes, dismantling TBM roadheaders, and inability to install gantry cranes in tunnels. The effect of installation efficiency, solving construction problems and ensuring safety

Active Publication Date: 2019-01-15
CHINA GEZHOUBA (GRP) FIRST ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using lifting equipment such as truck cranes, it is impossible to install door cranes in the tunnel
The portal machine cannot be installed in the tunnel, so the TBM roadheader cannot be dismantled in the tunnel

Method used

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  • Device and method for assembling and disassembling truss coupling-beam type gantry crane in tunnel
  • Device and method for assembling and disassembling truss coupling-beam type gantry crane in tunnel
  • Device and method for assembling and disassembling truss coupling-beam type gantry crane in tunnel

Examples

Experimental program
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Effect test

Embodiment 1

[0046] see Figure 1-4, the truss in the tunnel is connected with the installation and disassembly device of the beam type portal crane, which includes the artificial tunnel excavation section 2, the upstream tunnel expansion section 3 is excavated after the artificial tunnel excavation section 2, and the tunnel expansion section is excavated after the upstream tunnel expansion section 3 Elevation section 5, tunnel expansion and excavation After the elevation section 5, a downstream tunnel expansion section 6 is excavated. After the downstream tunnel expansion section 6, a roadheader excavates a tunnel 7. The bottom of the artificial tunnel excavation section 2, the upstream tunnel expansion section 3, the tunnel expansion and heightening section 5 and the downstream tunnel expansion section 6 is laid with a portal crane track 1, and the portal crane track 1 is supported by double main girders. Type door machine 4. Further, the double main girder type door crane 4 includes a ...

Embodiment 2

[0052] The method for installing the door crane by using any one of the truss connection beam type door crane installation and disassembly devices in the tunnel described above includes the following steps:

[0053] Step1: Lay two portal crane tracks 1 at the bottom of the artificial tunnel excavation section 2, the upstream tunnel expansion section 3, the tunnel expansion section 5 and the downstream tunnel expansion section 6;

[0054] Step2: install the wheel box 8 on the track 1 of the door machine, and use a truck crane to hoist the bottom beams 9 of the two door machines onto the wheel boxes 8 on the track 1 of the two door machines;

[0055] Step3: After the two gantry bottom beams 9 are leveled, temporarily fix the gantry bottom beam 9 to the ground with rods 10, and then hoist the assembled contact beam 13 across the top of the two gantry bottom beams 9 , and use the rod 10 to temporarily fix the two, and then make the two form an integral structure;

[0056] Step4: ...

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Abstract

The invention provides a device and method for assembling and disassembling a truss coupling-beam type gantry crane in a tunnel. The device comprises an artificial tunnel excavation section; an upstream tunnel expanding-excavation section is excavated behind the artificial tunnel excavation section; a tunnel expanding-excavation heightened section is excavated behind the upstream tunnel expanding-excavation section; a downstream tunnel expanding-excavation section is excavated behind the tunnel expanding-excavation heightened section; and a roadheader excavation tunnel is arranged behind the downstream tunnel expanding-excavation section. The device can easily install the main structure unit of the gantry crane in narrow tunnel space, solves construction problems in the installation of thegantry crane in the tunnel, and can be widely applied to assembling and disassembling of gantry cranes in tunnels of water conservancy projects and to similar projects.

Description

technical field [0001] The invention relates to the field of auxiliary installation of portal cranes, in particular to a truss-connected beam type portal crane assembly and disassembly device and method in a tunnel, which is suitable for installing the main structural device of the portal crane in a narrow space of the tunnel. Background technique [0002] In order to dismantle a 680-ton TBM with a diameter of 8m in a tunnel. It is proposed to manually excavate a 14.2m high city gate-shaped expansion hole. And drill 3 rows of 3m deep holes in the rock on the top of the cave, install a load-bearing anchor rod with a length of 3.5m and a diameter of 25cm, weld and install 3 I32-type I-steel hanging rails under the anchor rod, and hang a 10-ton electric hoist under the I-steel. To install a 75t+75t double girder gantry crane. In addition, 8 anchor bolt holes for cable wind ropes are drilled at the bottom of the expanded excavation section to fix the 4 main legs of the door cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C19/00B66C5/02B66C6/00
CPCB66C5/02B66C6/00B66C19/00
Inventor 蒋维灿李波赵志忠刘伟刘岩郭靖斌齐晓亮赵同金王学明胡方华
Owner CHINA GEZHOUBA (GRP) FIRST ENG CO LTD