Fan-shaped cast-in-place hollow floor type storage tank leveling foundation and construction method thereof

Abstract

The invention discloses a fan-shaped cast-in-place hollow floor type storage tank leveling foundation and a construction method thereof, and belongs to the technical field of chemical storage. The fan-shaped cast-in-place hollow floor type storage tank leveling foundation comprises a foundation pile foundation, a foundation plain concrete cushion layer, an asphaltic sand cushion layer and a cast-in-place hollow floor type storage tank foundation arranged between the foundation plain concrete cushion layer and the asphaltic sand cushion layer. The cast-in-place hollow floor type storage tank foundation is formed by integrally pouring fan-shaped foam concrete solid blocks and reinforced concrete beams arranged in the annular direction and the normal direction. The fan-shaped foam concrete solid blocks are connected through a base formed by welding reinforcing steel bars and cross binding of the base and anchor bars at the top of a pile foundation, so that accurate construction positioning of the foam concrete solid blocks is achieved, and meanwhile the problem that the foam concrete solid blocks float upwards when storage tank foundation concrete is poured and tamped is solved. The storage tank foundation concrete can be poured and tamped in place at a time. A concrete toe is arranged on the lower side of the periphery of the cast-in-place hollow floor type storage tank foundation, and the horizontal earthquake resisting bearing capacity of the storage tank foundation is improved.

Description

technical field [0001] The invention relates to the technical field of chemical product storage, in particular to a fan-shaped cast-in-place hollow floor storage tank leveling foundation and a construction method thereof. Background technique [0002] The traditional storage tank foundation structure generally includes 100 thick plain concrete cushion, cast-in-place reinforced concrete solid storage tank foundation, medium and coarse sand cushion, and asphalt sand cushion from bottom to top. Among them, the main function of the medium and coarse sand cushion is to adjust the uneven settlement of the tank foundation. However, through the leveling design of the foundation pile foundation, the uneven settlement of the storage tank foundation can be controlled within the range specified by the code, so the effect of the medium and coarse sand cushion is not obvious. Moreover, the construction of medium and coarse sand cushions is relatively difficult. When using construction ma...

AI Technical Summary

Problems solved by technology

In areas of weak foundation soil with high seismic intensity, the horizontal seismic force on the foundation of the storage tank is relatively large. In such projects, the characteristic value of the vertical bearing capacity of a single pile is often easier to satisfy, while the characteristic value of the horizontal bearing capacity of a single pile is not easy to satisfy.

When the number of piles is controlled by the characteristic value of the horizontal bearing capacity, the project investment increases

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