Pile top pre-piercing type cushion structure of building composite foundation

Abstract

The invention discloses a pile top pre-piercing type cushion structure of a building composite foundation. The structure comprises a bed rock; a sandy soil layer is arranged at the top of the bed rock; rigid piles are arranged in the sandy soil layer; a cushion is arranged above the sandy soil layer; the top ends of the rigid piles penetrate into the cushion; a foundation ground is arranged above the cushion; a concrete layer is arranged above the foundation ground; a steel bar layer is arranged between the foundation ground and the concrete layer; a connecting plate is arranged on one side of the steel bar layer; a water retaining part is arranged at the other end of the connecting plate; a water retaining shell is arranged on the outer surface of the water retaining part; and a waterproof layer is arranged between the water retaining shell and the cushion. The pile top pre-piercing type cushion structure of the building composite foundation has the beneficial effects that when rainwater weather occurs around a building foundation, rainwater is accumulated on the peripheral side of the building foundation, and at the moment, the water retaining parts and the water retaining shells prevent the rainwater from invading the cushion, so that loss of the cushion and the sandy soil layer caused by rainwater erosion is prevented, and the stability of the building foundation is improved.

Description

Technical field [0001] The present invention relates to the field of construction, in particular, it relates to an architectural foundation pile top pre-piercing type composite Cushion structure. Background technique [0002] Cushion cushion is disposed on top of the composite pile foundation pile and soil, can modulate the main pile and soil load sharing, reducing the base bottom surface stress concentration, the coordinating role pile and soil deformation. [0003] Generally conventional Cushion Cushion use gravel or lime, i.e. the flexible Cushion; or using only plain concrete Cushion, i.e. rigid cushion. In some cases, the use of flexible Cushion not only full co-bearing capacity of the soil pile, but only Cushion rigid and rigid contact between the reinforced concrete foundation with rigid Cushion, vibration-absorbing buffer effect is not good, not play to coordinate the pile-soil deformation effect and cushion difficult to prevent the infiltration of rainwater to the outsid...

AI Technical Summary

Problems solved by technology

In some cases, the common bearing capacity of the pile and soil cannot be fully exerted by only using a flexible cushion, while only using a rigid cushion makes the rigid contact between the reinforced concrete foundation and the rigid cushion. To coordinate the deformation of the pile and soil, and the cushion layer is difficult to prevent external rainwater from penetrating into the foundation and the soil between the piles, the waterproof effect is not good, and it is easy to cause the loss of the cushion layer and the soil between the piles, thus affecting the stability of the building foundation

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