Method for forcibly dismantling concrete support by using high-pressure hydrostatic pressure

Abstract

The invention relates to a method for forcibly dismantling a concrete support by using high-pressure hydrostatic pressure. The method comprises the following steps of 1) pre-burying a high-hydrostaticpressure pipe; 2) pouring a concrete support; and 3) applying high hydrostatic pressure to break down the concrete support, when the support needs to be dismantled, connecting a pipeline port extending out of the concrete with an ultrahigh water pressure generator through a joint, feeding water into a water inlet, starting the ultrahigh water pressure generator, slowly increasing the water pressure to a preset pressure intensity, under the condition that a high hydrostatic pressure pipe is not cracked, removing the concrete support, water pressure in the high hydrostatic pressure pipe is evenly and slowly transmitted to concrete through the inner wall of the high hydrostatic pressure pipe, finally the concrete support cracks and cracks, and then the concrete support is broken. The methodis simple in structure, convenient to install, quick to operate, low in manufacturing cost and easy to popularize and apply.

Description

technical field [0001] The invention relates to a method for demolishing concrete supports. Background technique [0002] With the continuous development of the city, the construction of deep foundation pits in the city is becoming more and more common, but often during the construction, there are various traffic roads, buildings and even pipelines in the surrounding environment. At this time, how to minimize the impact on the surrounding environment during the construction process is particularly important. Therefore, in the construction of deep foundation pits, there are higher requirements for the removal method of temporary components such as concrete supports. [0003] Existing demolition methods for reinforced concrete supports include blasting demolition, expansion agent static crushing demolition, mechanical demolition and manual pneumatic pick demolition, etc. However, when explosives are blasted, unavoidable shock waves, flying stones and dust will be generated, ...

AI Technical Summary

Problems solved by technology

However, when explosives are blasted, unavoidable shock waves, flying stones and dust will be generated, which brings inconvenience to the construction; when the expansion agent is broken and demolished, it will be difficult to accurately control the change of pressure and there are many processes; it is difficult to control the vibration generated during mechanical demolition , may cause the deformation of the foundation pit to become larger; and the construction period for the removal of the artificial pneumatic pick is too long, which affects the construction process

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