Rigidity pile composite foundation differential settlement control method

Abstract

The invention discloses a rigidity pile composite foundation differential settlement control method. The rigidity pile composite foundation differential settlement control method comprises the following steps that detection is conducted, and a too long rigidity pile is subjected to short cutting; a transition material block is placed on the pile top of the rigidity pile; refilling of plain concrete is conducted on the pile top of the rigidity pile so that the transition material block can be fixed; and a raft is poured to the transition material block and the plain concrete. The flexible transition material block with a force transmitting function and the reinforced concrete raft are designed on the road section where differential settlement happens to a rigidity pile composite foundation,the bearing capacity requirement can be met under the situation that road surface settlement is little, the differential settlement can be balanced under the situation that road surface settlement islarge, the characteristic of rigidity and softness combination is achieved, pile and soil settlement can be collaboratively conducted, and the disease caused by differential settlement is weakened and even eliminated.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a differential settlement control method of a rigid pile composite foundation. Background technique [0002] For engineering construction on soft soil layers, it is generally necessary to strengthen or replace the soft soil before it can bear the overlying load. Rigid pile composite foundation is one of the most commonly used soft foundation treatment methods, including reinforced concrete piles, Pile body types such as plain concrete piles, prestressed pipe piles and steel pipe piles, especially in geological conditions where the thickness of the soft soil layer is deep and the drainage consolidation method cannot be completely treated or the treatment cost is high. Due to the advantages of large treatment depth and fast construction speed, rigid pile composite foundation is often used as a common process for soft soil foundation treatment. [0003] The existin...

AI Technical Summary

Problems solved by technology

There are many problems in these methods: for example, in the construction process of rigid pile composite foundation, the high bearing capacity of rigid pile may lead to uneven settlement of the road; Shaped, wavy pavement and other diseases

At present, there is still a lack of methods that can effectively control the differential settlement of rigid pile composite foundations and ensure the coordinated development of pile-soil settlement.

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