Construction method of reinforced concrete corrugated plate pile underground structure

Abstract

The invention discloses a construction method of a reinforced concrete corrugated plate pile underground structure. The structure specially comprises the steps that 1, a figured steel protective cylinder and reinforced concrete corrugated plate piles are prepared; 2, underground grooves are excavated; 3, the reinforced concrete corrugated plate piles are sunk in the underground grooves and mutually connected; 4, the step 2 and the step 3 are repeatedly implemented to complete excavation of the underground grooves and sinking of the reinforced concrete corrugated plate piles; and 5, a foundation pit is excavated. The way that the continuous underground grooves are excavated under the ground at first is adopted, then, the reinforced concrete corrugated plate piles are sunk in the underground grooves, due to the fact that hammering or extrusion on the reinforced concrete corrugated plate piles is avoided, damage to the internal structures of the reinforced concrete corrugated plate piles is avoided, the completeness of the internal structures of the reinforced concrete corrugated plate piles is kept, and therefore the reinforced concrete corrugated plate piles can completely play a dual role. In the excavation process of the underground grooves, by arranging the figured steel protective cylinder, the trouble of bottom cleaning is avoided, and the construction efficiency is improved.

Description

technical field [0001] The invention belongs to the construction field of underground structures, and in particular relates to a construction method of reinforced concrete corrugated sheet pile underground structures. Background technique [0002] With the continuous improvement of urban population density, various buildings in the city are constantly being renovated. In order to expand the use of space, people continue to develop underground, so more and more projects involve underground construction, such as basements. , underground parking garages, air defense facilities, subways, tunnels and other civil engineering projects, in this type of underground engineering, due to the inadmissibility of the soil structure in some areas, or the influence of ground buildings and underground pipelines, it is impossible to adopt large-scale grading methods. For the construction of underground structures, it is necessary to build protective walls around the underground foundation pit....

AI Technical Summary

Problems solved by technology

However, the T-shaped through-slot of the sheet pile is directly made of concrete. When making the T-shaped through-slot, the mold in it needs to be pulled out before the concrete is completely solidified. During the process of pulling out the mold, the T-shaped The concrete or stone on the inner wall of the through-slot will inevitably partially overflow, and sometimes the overflowing part will block the T-shaped through-slot, causing the I-beam to be unable to be inserted into the T-shaped through-slot smoothly. In severe cases, the sheet pile It may not be able to be used normally, and improving the connectability between reinforced concrete sheet piles is also a top priority

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