Pile foundation reinforcing structure capable of resisting train vibration and construction method
A technology for strengthening structures and construction methods, applied in foundation structure engineering, non-rotational vibration suppression, sheet pile walls, etc., can solve problems such as difficult to reach deep positions, inability to improve stability and anti-vibration capabilities of pile foundations
Active Publication Date: 2022-05-10
SUN YAT SEN UNIV
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Problems solved by technology
[0004] However, most of these existing stabilization schemes focus on the reinforcement near the surface in terms of excavation range, reinforcement range and reinforcement effect, and it is difficult to reach deeper positions, so they cannot effectively help the pile foundation to improve its stability and anti-vibration ability
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[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0020] It should be noted that if the embodiment of the present invention involves directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, vertical, counterclockwise, clockwise, circumferential direction, radial direction, axial direction...), the directional indication is only used to explain the relative positional relationship, movement conditions, etc. When a change occurs, the directional indication changes accordingly.
[00...
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According to the train vibration resisting pile foundation reinforcing structure and the construction method, an outer supporting piece of the train vibration resisting pile foundation reinforcing structure abuts against a pile body through an elastic supporting top, and vibration energy applied to a forcing rod by stratum vibration is absorbed through an elastic energy absorption ring and an energy absorption medium filled with a shell. In the process that the vibration load of a subway vehicle is transmitted from a tunnel to the surrounding stratum and transmitted to a power transmission tower pile foundation and a power transmission tower upper structure, the forcing rod located in the front shakes along with vibration of the stratum, and in the shaking process, on one hand, the elastic energy absorption ring is pressed to deform, and part of vibration energy is absorbed by the elastic energy absorption ring; meanwhile, shaking of the forcing rods enables the rear sections of the forcing rods and the extrusion bodies on the rear sections of the forcing rods to extrude the energy absorption media, the energy absorption media move and rub in the shell and even deform and break, and therefore a large amount of vibration energy is absorbed, a pile foundation of the power transmission tower can be reinforced, most of vibration energy can be absorbed, and the energy absorption effect is improved. And the stability and safety of the power transmission tower pile foundation and the power transmission tower upper structure are ensured.
Description
technical field [0001] The invention relates to the technical field of transmission tower protection engineering, in particular to a pile foundation reinforcement structure and construction method for anti-train vibration. Background technique [0002] With the continuous advancement of urban rail transit construction, subway tunnels are gradually expanding to the outer edge of the city. The significant train vibration generated by subway vehicles running in the subway tunnels on the outer edge of the city will have a negative impact on the stability of the original transmission tower structure and its pile foundation on the outer edge of the city, and may even endanger the safety of the transmission tower. [0003] In order to improve the stability of the original transmission tower in the subway vehicle operation area, the existing technology mainly uses a large-scale excavation of the strata around the transmission tower, and connects multiple piles of the transmission to...
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Login to View More IPC IPC(8): E02D5/64E02D27/42E02D27/12E02D31/08F16F15/04F16F15/02
CPCE02D5/64E02D27/42E02D27/12E02D31/08F16F15/04F16F15/02
Inventor 马建军梁基冠黄林冲梁禹杨宏伟陈万祥党文刚
Owner SUN YAT SEN UNIV