Coastline soft foundation solidified soil structure and technology

Abstract

The invention discloses a coastline soft foundation solidified soil structure which comprises a cast-in-place abutment arranged at the land side and an arc dam arranged at the junction of the sea side and the land side. In-situ solidified soil foundations are arranged at the two sides of the lower end of the arc dam, concrete envelopes are arranged at the corners of the top ends of the in-situ solidified soil foundations close to the sea side, concrete pedals are arranged at the ends, close to the land side, of the concrete envelopes in an upwards-inclined manner, prefabricated concrete paving plates are arranged on the top faces of the concrete pedals, and cast-in-place concrete plates are horizontally arranged between the top ends of the concrete pedals and the cast-in-place abutment; and backfill solidified soil foundations are filled into gaps between the cast-in-place concrete plates and the in-situ solidified soil foundations as well as between the concrete pedals and the in-situ solidified soil foundations. Meanwhile, the invention further provides a coastline soft foundation solidified soil technology. The coastline soft foundation solidified soil structure and technology can be effectively suitable for soft foundation solidification of commercial street sections with high foundation strength requirements, the construction technology and machinery are simple, the construction progress is fast, the construction quality is high, and the construction cost is low.

Description

technical field [0001] The invention relates to the technical field of coastline construction, in particular to a shoreline soft foundation solidified soil structure and technology. Background technique [0002] Commonly used soft foundation curing methods are vacuum preloading and backfilling. The vacuum preloading method is to mechanically insert drainage pipes into the mud pool, connect the drainage pipes and spread plastic film, pad sand with a thickness of 0.5 meters, then pump in seawater to form pressure, and then use a vacuum pump to pump air and drain water. Due to the large area of ​​reclamation sea mud for land reclamation (land), generally the area of ​​each mud pool is 500,000-1 million square meters, and the water content of sea mud is large, generally the water content is 45% to 50%. Fine, the particle diameter is generally below 2mm, and the sea mud depth is large, generally 4-6 meters. Vacuum preloaded intubation machines cannot be inserted into the pool. ...

AI Technical Summary

Problems solved by technology

If a floating bucket is used to enter the pool for intubation, the intubation depth is difficult to reach 4-6 meters, so the vacuum preloading method is difficult to play a role

The backfill method requires a large amount of dry soil, and the ratio of sea mud to dry mud is about 1:0.5. Each square meter of land needs 2-3 cubic meters of dry soil, and the cost of land construction per square meter reaches 200 The cost is too high, and at the same time, because taking dry land will destroy the existing land, making land creation meaningless

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