The jacking device for handling the jumping at the bridge head with the preset adjustable strapping plate

A technology of jacking device and bridge head jumping, which is applied in the directions of bridges, bridge maintenance, bridge reinforcement, etc., can solve the problems of foundation settlement that cannot be completely solved, the difficulty of post-construction settlement and maintenance construction, and the impact of normal opening to traffic, etc. Good application prospect, low cost and wide application range

Active Publication Date: 2017-03-15
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These three bridgehead vehicle jumping treatment methods have their own advantages, but also have disadvantages: high cost, long construction period, can not completely solve the problem of foundation settlement, post-construction settlement repair construction is difficult, and has a great impact on normal traffic

Method used

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  • The jacking device for handling the jumping at the bridge head with the preset adjustable strapping plate
  • The jacking device for handling the jumping at the bridge head with the preset adjustable strapping plate
  • The jacking device for handling the jumping at the bridge head with the preset adjustable strapping plate

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited.

[0036] The jacking device provided by the present invention for handling vehicle jumping at the bridge head with a preset adjustable strapping plate is mainly aimed at the problem of "car jumping at the bridge head" caused by settlement between a rigidly supported abutment and a flexible filled embankment. Its structure is as figure 1 As shown, it includes modified maintenance vehicle 1, mounting plate 2, external threaded rod 6, laser leveling device 7, preset bearing platform, low-frequency electric wrench, of which: external threaded rod 6, laser leveling device 7 and low-frequency electric The wrench is mounted on the modified maintenance vehicle 1. There are nine jacking holes 13 and ten grouting holes 14 on the board 2. The jacking holes 13 have built-in threaded sleeves 5, and the board 2 is placed on th...

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PUM

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Abstract

The invention discloses a preset jacking apparatus for handling a bridge-head jump problem by the use of an adjustable lapping slab. The apparatus comprises a refitted maintenance vehicle (1), a lapping slab (2), external threaded rods (6), a laser leveling device (7), a preset bearing platform and a low-frequency electric wrench. The external threaded rods (6), the laser leveling device (7) and the low-frequency electric wrench are arranged on the refitted maintenance vehicle (1); the lapping slab is provided with multiple jacking holes (13) and grouting holes (14); each jacking hole is internally provided with a threaded sleeve (5); and the lapping slab is placed on the preset bearing platform. During a jacking process, the external threaded rods (6) abut against upper portion bearing platform block grooves (15) and are engaged with the internal threaded sleeves (5), the lapping slab is jacked, the laser leveling device (7) indicates that the lapping slab (2) and the road are on the same plane, the gap formed during the jacking process is filled with grout through the grouting holes (14) by a grouting device, and normal traffic can be restored after the grout solidifies. The jacking apparatus is designed in a preset manner, is high in generality, is convenient to construct, and is low in cost.

Description

technical field [0001] The patent of the invention belongs to the field of civil construction engineering, and relates to a lifting device for lifting a bridgehead foundation to control the subsidence of a bridge head. Background technique [0002] Bridge head jumping refers to the phenomenon that the wheels vibrate up and down when the car passes through the road section because the settlement between the bridge culvert structure and the embankment behind the abutment exceeds a certain limit value. The causes of poor settlement mainly include foundation subsidence, foundation filling subsidence, pavement structural layer compression, improper construction measures, design reasons, etc. [0003] At present, domestic and foreign methods to deal with the problem of vehicle jumping at the bridge head mainly include the bridge head slab method, the geogrid method and the special material replacement method. These three bridgehead vehicle jumping treatment methods have their own...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00
Inventor 邱红胜张嘉熙支云翔曾一芝姜莉颖姚鹏飞
Owner WUHAN UNIV OF TECH
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