A treatment method for overall deviation of bridges caused by landslides

A technology for landslides and bridges, applied in bridges, bridge construction, bridge maintenance, etc., can solve problems such as long-term impacts of bridges, and achieve the effects of low input cost, slowing down of creep, and high-efficiency utilization

Active Publication Date: 2022-06-03
CCCC SECOND HARBOR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Another purpose of the present invention is to provide a treatment method for the overall deviation of the bridge caused by the landslide, so as to solve the technical problem that the existing bridge reinforcement method cannot fundamentally solve the long-term impact of the landslide on the bridge

Method used

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  • A treatment method for overall deviation of bridges caused by landslides
  • A treatment method for overall deviation of bridges caused by landslides
  • A treatment method for overall deviation of bridges caused by landslides

Examples

Experimental program
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Effect test

Embodiment 1

[0040] like figure 1 As shown, the bridge is a multi-connected structure, the bridge spans a valley, an expansion joint 2 is provided between the main beams 1 of each connection, and part of the pile foundation is located in the landslide body 6, and the landslide body 6 is subjected to rainfall or construction spoil Under the influence of other factors, sliding down the sliding surface 3 causes the plane position and elevation of the bridge to change, and leads to cracks in various parts of the substructure of the bridge, which seriously affects the safety of the upper vehicle traffic. The cushion of the seat is not damaged, only the plane position and elevation change. In order to solve the bridge disease and achieve the purpose of saving manpower and material resources quickly and safely, the construction is carried out through a treatment method for the overall deviation disease of the bridge caused by the landslide body in this embodiment. Before the treatment constructio...

Embodiment 2

[0052] This embodiment differs from Embodiment 1 only in that, such as figure 2 As shown, in step S2, the anti-sliding pile 8 is a rectangular anti-sliding pile 8. When the rectangular anti-sliding pile 8 is set, the long axis direction of the rectangular anti-sliding pile 8 is consistent with the creeping direction of the landslide body 6, and the rectangular anti-sliding pile 8 is The bottom of 8 is embedded into the rock layer 7 downward, and all the rectangular anti-slide piles 8 form a semi-enclosed structure in the horizontal plane for the part of the bridge located on the landslide body 6;

[0053] Further, in step S2, the anti-sliding pile 8 is also provided with a stress monitoring device, and the stress monitoring device includes a control chip and a stress monitor, an early warning device, and a display terminal electrically connected to the control chip respectively. In order to realize human-computer interaction, by setting and displaying the stress warning value...

Embodiment 3

[0057] This embodiment differs from Embodiment 1 only in that, such as image 3 As shown, in step S3, when setting the new pile foundation 10, the process of manually digging a hole pile is used to form a hole;

[0058] In step S4, as image 3 As shown in the figure, when the original bearing platform 13 is expanded, the soil around the original bearing platform 13 is first excavated, and then the four sides and the bottom surface of the original bearing platform 13 are drilled, and the drilling depth is not less than the planting bar. 10 times the diameter, the planting bars are arranged at equal intervals in the longitudinal and transverse directions. After the planting of the reinforcing bars is completed, the formwork is poured into concrete to form the new platform 14, and the axis of the new platform 14 is offset from the original platform 13. The previous axes are coincident, and the new pile foundation 10 and the new bearing platform 14 are anchored;

[0059] Specifi...

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Abstract

The invention discloses a treatment method for the overall deviation of bridges caused by landslides. The invention first transfers part of the landslide to the foot of the valley by clearing the side and reducing the load to slow down the creep of the landslide. Set up anti-slide piles to form a semi-enclosed structure for the part of the bridge located in the landslide body to block and stabilize the landslide body, improving the stability of the new pile foundation, and then carry out targeted new construction or reinforcement of the bridge substructure to realize the support of the main beam System conversion. Finally, it is only necessary to adjust the elevation and horizontal position of the main girder to restore the main girder to the original position of the bridge before the offset. After reinstalling the expansion joints, the treatment and repair construction of the entire bridge affected by the landslide is completed. There is no need to dismantle and rebuild the entire bridge. The overall construction method is simple and efficient, which greatly saves resources and costs, and fundamentally solves the problem of long-term impacts of landslides on bridges.

Description

technical field [0001] The invention relates to the field of bridge maintenance and reinforcement engineering. More specifically, the present invention relates to a method for treating the overall deviation of bridges caused by landslides. Background technique [0002] In order to ensure the safe operation and reasonable service life of bridges, the annual inspection, monitoring, evaluation, maintenance and reinforcement consume a lot of manpower and material resources. my country is a mountainous region, especially in the west, with complex vertical and horizontal valleys and complex hydrogeological conditions. Various natural disasters, especially landslides, cause frequent bridge damage, which seriously affects the safety of bridges. The traditional maintenance methods are mainly based on regular maintenance and post-event maintenance, which mainly have the characteristics of simple management and easy implementation, but it is also easy to cause the consequences of insu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00
CPCE01D22/00Y02A10/23
Inventor 胡伟邦王浩谢太涛杨武张家硕张鑫
Owner CCCC SECOND HARBOR ENG
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