Method for reducing ground vibration caused by collapse of large-scale structure

Abstract

The present invention provides a method for reducing the ground vibration caused by the collapse of a large-scale structure. The method comprises the following steps: I) determining the ground range of the rubble pile after the collapse of the structure; II) providing a vibration damping cushion, designing and selecting preliminary physical parameters of the vibration damping cushion, using debrisand rubbles in the rubble pile to obtain the compressive height of the vibration damping cushion, and then comparing the preliminary physical parameters of the vibration damping cushion with the compressive height to determine best parameters of the vibration damping cushion; and III) arranging the vibration damping cushion determined by the final physical parameters within the rubble-piled ground range. According to the method provided by the present invention, advantages of strong energy consumption, almost negligible spring back after compression, good durability, low maintenance cost, andthe like of the vibration damping cushion are used, and under the action of the impact force, the vibration damping cushion can generate multiple "folds", so that the ground vibration caused by the collapse of the large-scale structure can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of civil engineering and relates to a method for reducing ground vibration caused by the collapse of large structures. Background technique [0002] As we all know, if a large structure collapses, it will cause strong ground vibration, which may cause harm to surrounding structures, various equipment and people. [0003] Currently, this situation is of particular concern in China's inland nuclear power plants. Generally, the following factors need to be considered in the site selection of inland nuclear power plants: [0004] (1) It needs to be close to the big river to obtain abundant water source to ensure the normal operation of the water cooling system of the nuclear power plant; [0005] (2) Avoid densely populated areas for population evacuation in the event of a nuclear accident. [0006] In my country, the result of considering the above two factors in site selection is that the site area is gener...

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Problems solved by technology

[0009] (1) The degree of "softness" is insufficient, and the energy consumption effect is limited;

[0010] (2) The durability is insufficient, and it will harden after a long time, reducing the vibration reduction effect;

[0011] (3) If you want to keep it from hardening, you need additional maintenance work

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