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Defense device capable of achieving protective effect on bridge piers and construction method

A technology of protection and bridge piers, applied in the direction of bridges, bridge maintenance, bridge reinforcement, etc., can solve problems such as serious damage, impact on bridge safety, and bridge pier damage, so as to improve the safety guarantee factor, ensure stability and safety, and structure simple effect

Inactive Publication Date: 2020-10-30
田育民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the passage of time and use, bridges (30) and bridge piers (32) will be damaged due to natural causes such as aging and earthquakes, and sometimes the impact of ships or drifts in the river will cause damage to bridge piers (32). Different degrees of damage and damage, especially in the rainy season, when the river surges, the number of drifting objects in the river will increase rapidly, and a large number of floating objects will have more impacts on the pier (32), and the damage will be more serious, and even worse. Will affect the safety of the entire bridge (30)
The normal aging of bridge piers in natural factors and the impact of natural disasters such as earthquakes on bridge piers (32) cannot be fundamentally controlled and resolved by people, but drifting objects in the river will also cause differences to bridge piers (32). damage and damage

Method used

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  • Defense device capable of achieving protective effect on bridge piers and construction method
  • Defense device capable of achieving protective effect on bridge piers and construction method
  • Defense device capable of achieving protective effect on bridge piers and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 1-2 As shown, the defense device provided in this embodiment to protect the pier includes a defense body 20 arranged upstream of each pier 32. The defense body 20 includes a protective plate made of steel material, and the protective plate The front fender 22 and the rear fender 23 in the middle are fixedly connected together to form a double-layer structure. In this embodiment, the front fender 22 and the rear fender 23 are both a semicircular and semicircular double-layer structure. When installing, the front fender 22 and the rear fender 23 can be hoisted and installed respectively, so as to ensure the protection Under the premise that the overall board has a certain strength, the hoisting weight of the two structures during hoisting is reduced to ensure construction safety. Wherein, the bottoms of the front fender 22 and the rear fender 23 are all arranged below the base level 33, and the front fender 22 is provided with several explosive devices 40...

Embodiment 2

[0036] This embodiment has been improved on the basis of Embodiment 1, and other structures are the same, and the difference is:

[0037] In this embodiment, in order to improve the impact force of the floating objects on the defense body 20, prevent the floating objects with small mass from detonating the explosive device 40, and improve the impact strength of the explosive device 40 when it hits the floating objects, the hard plastic The middle of the pressure plate 44 made of material is provided with a steel plate layer. When the drifter hits the pressure plate 44, the pressure plate 44 in the defense body 20 can bear a larger impact force, so that the pressure plate 44 will not be subjected to a small impact. When the pressure is high, the explosive device 40 will be detonated by impact.

[0038] like Figure 5 As shown, in order to control the impact force of the drifter on the defense body 20 and prevent the explosive device 40 from detonating by the drifter with small...

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Abstract

The invention belongs to the technical field of road bridges, and particularly relates to a defense device capable of achieving protective effect on bridge piers and a construction method. The defensedevice capable of achieving protective effect on the bridge piers provided by the invention comprises a defense body arranged at the upstream position of each bridge pier, wherein the defense body comprises a protective plate; a plurality of exploding devices towards a water flow direction are arranged on the protective plate; center positions of pressure discs in the exploding devices are provided with firing pin bins; firing pins capable of moving downwards are arranged in the firing pin bins; disc type springs for supporting the pressure discs are arranged in detonating shells; and the lower sides of the firing pins are equipped with detonators for detonating high explosives. Drifting objects which drift down from middle and upper reach of a river are blocked and distributed, and exploding devices can explode blocked large-size objects, so that the purposes of prolonging the service life of a bridge and guaranteeing bridge safety are realized.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a defense device and a construction method for protecting bridge piers. Background technique [0002] Such as figure 1 As shown, a general bridge (30) includes a bridge plate (31) arranged on a pier (32), and the pier column (35) on the lower side of the pier (32) is fixed on the river foundation, and the abutment (34) and The foundation horizontal line (33) is on the same level, and some piers (34) are also provided with a water level scale (36), and the bridge (30) supports the bridge deck (31) by the piers (32) on the piers (34) As well as the loads of pedestrians and vehicles on the bridge deck (31), the importance of the bridge pier (32) cannot be ignored, it must bear various loads on the upper part, and transfer the load reliably to the pier (31) and the river foundation . With the passage of time and use, bridges (30) and bridge piers (32) will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/26E01D22/00F42D1/00
CPCE01D22/00E02B3/26F42D1/00Y02A30/30
Inventor 田育民邱保全张震伟郭炳军刘中华杨学娜高宏晔杨晓凤李睿王勇尚勤超原会娟汪贝贝
Owner 田育民
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