Coal yard foundation structure, construction method thereof and coal yard structure

Abstract

The invention relates to the technical field of civil construction, and discloses a coal yard foundation structure and a construction method thereof.The coal yard foundation structure comprises a foundation body, the foundation body is provided with an underground gallery and a plurality of pile foundation units, and each pile foundation unit is defined by a plurality of first pile foundations in a circumferential distribution mode; the multiple pile foundation units are sequentially arranged from inside to outside and concentrically arranged, and by arranging the multiple concentric pile foundation units, a damaged first pile foundation can be rapidly positioned during construction; meanwhile, the second pile foundation is arranged at the bottom of the underground gallery, and the underground gallery structure can be supported. The invention further comprises a construction method of the coal yard foundation structure, the foundation body is divided into a central area and a peripheral area, and the pile foundation units are manufactured in the peripheral area of the foundation body; meanwhile, the underground gallery is constructed, the construction period can be shortened, the manufacturing cost can be saved, and meanwhile the construction quality and safety requirements can be met.

Description

technical field [0001] The invention relates to the technical field of civil construction, in particular to a coal yard foundation structure, a construction method thereof, and a coal yard structure. Background technique [0002] At present, the construction of the coal yard foundation can firstly construct the coal yard pile foundation in a unified manner, and then excavate the corridor after the pile foundation is completed, but this construction plan will expose 1 / 3 of the pile foundation, and the soil cannot be refilled after backfilling. When the original compactness is reached, the frictional support effect of the soil on the pile will be weakened, and at the same time, it will bring many disadvantages to the construction of the underground corridor. During the construction period, an external force will be generated on the pile, which will affect the bearing capacity of the pile and bring great hidden dangers to the safety of the foundation. Structural safety is diffi...

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Problems solved by technology

[0002] At present, the construction of the coal yard foundation can firstly construct the coal yard pile foundation in a unified manner, and then excavate the corridor after the pile foundation is completed, but this construction plan will expose 1 / 3 of the pile foundation, and the soil cannot be refilled after backfilling. When the original compactness is reached, the frictional support effect of the soil on the pile will be weakened, and at the same time, it will bring many disadvantages to the construction of the underground corridor. During the construction period, an external force will be generated on the pile, which will affect the bearing capacity of the pile and bring great hidden dangers to the safety of the foundation. Structural safety is difficult to be guaranteed; the construction of the foundation of the coal yard can also first excavate the corridor to the bottom elevation of the corridor, do the foundation pit support when excavating the corridor, and then carry out the piling of the central column and the foundation of the corridor, and then construct the underground The foundation, side walls and roof of the corridor, after the construction of the underground corridor structure, is backfilled to the design elevation of the pile tops of other parts of the coal yard, and then piling is carried out. When it is damaged, the stress on the underground corridor will be uneven, and the underground corridor will be displaced, which is particularly easy to damage the construction joints of the underground corridor, causing water leakage in the corridor. Even if it is repaired, it will cause permanent hidden dangers, and it is difficult to guarantee the structural safety

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