A barrier-free cleaning device for abandoned piles

Abstract

The invention discloses a barrier-free cleaning device for an abandoned pile. The barrier-free cleaning device comprises a shell with a cylindrical cavity formed in the inner part, an upper sleeve tube is arranged on the upper surface of the shell, an upper through hole communicating with the sleeve tube is formed in the upper wall of the shell, a lower through hole corresponding to the upper through hole is formed in the lower wall of the shell, a round support plate is fixed to the middle of the hollow cavity of the shell, a penetrating hole for the abandoned pile to penetrate is formed in the middle of the support plate, a plurality of slag discharging holes are formed in the upper surface of the support plate in the radial direction of the support plate, an upper ring seat coaxially arranged with the upper through hole is arranged on the upper wall of the hollow cavity, a plurality of upper scraping blades are arranged on the bottom surface of the upper ring seat in the radial direction of the ring seat, a plurality of discharging holes are evenly formed in the side surface of the shell between the support plate and the lower wall of the cavity, and a lower sleeve tube is further arranged on the lower part of the shell. Soil stuck to the outer wall of the abandoned pile is cleaned by using the barrier-free cleaning device, the jacking-up weight is effectively decreased, meanwhile the labor intensity of works is relieved, and the jacking-up efficiency is improved.

Description

technical field [0001] The invention relates to the field of building construction, in particular to an obstacle-free cleaning device for abandoned piles. Background technique [0002] In recent years, my country's subway tunnel construction has entered a stage of rapid development, and the construction of subway tunnels has started in full swing. At the same time, my country's tunnel construction technology is also constantly improving, the level of tunnel construction has achieved leapfrog development, and many tunnel construction methods emerge in endlessly. The subway track constructed in the city is generally located underground in the bustling area of ​​the city. Because the traffic in these areas is relatively heavy and there are many buildings, the ground floor movement and ground subsidence are prone to occur during the construction process, which will not only affect urban traffic, It will also affect adjacent buildings, underground pipelines and other public infr...

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Problems solved by technology

[0003] However, the tunnel excavation route often encounters old foundation piles that existed in previous foundation projects, which hinders the excavation of the shield machine. Therefore, it is necessary to remove the waste piles of the construction

At present, there are many methods of pulling out waste foundation piles, and because the waste foundation piles are in the soil layer for a long time, the adsorption and bonding force between the foundation piles and the surrounding soil layer increases. Grooves are excavated around the waste foundation piles to eliminate the friction between the piles and the soil, and then the lifting equipment is used to lift the waste pile foundations; A certain thickness of soil will be attached to the outer wall of the pile, and the length of the waste foundation pile is generally in the range of 10 to 50 meters. The soil attached to the outer wall of the waste foundation pile will increase the lifting weight to a certain extent. The increased weight of this part is not only The load of the lifting equipment is increased, and it is easy to cause the steel rope connected to the waste foundation pile to break, thereby causing serious safety accidents; Manual removal of attached soil not only increases the labor intensity of workers, but also leads to low lifting efficiency

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