Whole process controllable displacement adjustment device

Abstract

The invention discloses a whole-process controllable displacement adjustment device, which includes a deformation indicator rod for measuring the relative deformation of a pile foundation and a raft, a grouting pipe, and a whole-process controllable displacement adjustment device arranged between the pile foundation and the raft. Type displacement regulator; the displacement regulator includes a cylinder, a base, telescopic elements and filling materials, the telescopic elements are arranged under the raft, the base is arranged on the pile foundation, and the telescopic elements are located in the cavity surrounded by the cylinder The grouting pipe is pre-buried in the raft, the lower part of the deformation marking rod is connected to the pile top, and the upper part passes through the grouting pipe and is exposed outside the raft; the telescopic element is clamped on the cylinder body, and the The filling material is filled between the cylinder body and the telescopic element, and the bottom of the cylinder body is provided with a heating device and an outlet hole. The invention has the feature that the supporting stiffness can be adjusted freely in the whole process, and this feature can be used in the fields of pile-soil interaction, variable stiffness design of raft slabs of buildings, reuse of old piles of buildings, and the like.

Description

technical field [0001] The invention relates to a device for freely adjusting the displacement between contact points in construction engineering, in particular to a whole-process controllable pile end displacement adjusting device. Background technique [0002] With the increasing shortage of urban land and the continuous development of building construction technology, high-rise buildings are increasing day by day. Especially recently, high-rise buildings have shown new characteristics of multiple towers and large chassis. Many high-rise buildings are closely adjacent to each other, and the lower podiums and basements of the buildings are connected into one piece. Therefore, the load distribution of the whole building is extremely uneven, resulting in large settlement and differential settlement. Even for single-pile buildings, due to the influence of pile group effects, complex geological conditions, and unreasonable design methods, differential settlement is still diffi...

AI Technical Summary

Problems solved by technology

[0007] The stiffness of the currently developed displacement regulator cannot be adjusted twice, and the stiffness setting depends on the accuracy of the design calculation, so the stiffness distribution of the pile foundation support is difficult to achieve the optimal state

There is still a certain distance from the goal of zero-difference settlement control, and it is impossible to realize the dynamic optimization design of the whole process of construction control

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