An underground engineering foundation floor structure and construction method thereof

Abstract

The invention relates to the technical field of underground structure engineering, and discloses an underground engineering foundation bottom plate structure and a construction method thereof, which solves the problem that the underground structure engineering foundation bottom plate and its construction and use method in the current market have poor pressure bearing effect and the bottom plate is prone to local cracks The condition of the floor affects the service life and stability of the floor. The lack of protective measures around the floor is prone to edge collapse, which affects the normal use of the entire floor. The level of the bottom of the floor is different, and the pressure capacity of the floor is uneven. problem, which includes manual digging piles, one end of the manual digging piles is laid with a lime layer, and the lime layer is laid with a waterproof layer; the present invention has a better pressure bearing effect and will not cause local cracks due to greater pressure , long service life, good stability, better protection for the periphery of the bottom plate, not easy to cause edge collapse, stable use of the bottom plate, the same level of paving, uniform pressure on the bottom plate, and not easy to be damaged.

Description

technical field [0001] The invention belongs to the technical field of underground building construction, in particular to an underground engineering foundation floor structure and a construction method thereof. Background technique [0002] Underground structures are divided into arched structures, circular and rectangular tubular structures, frame structures, thin shell structures, and special-shaped structures according to their structural forms. The loads borne by underground structures are divided into the following three categories according to their functional characteristics and possible situations during use. : That is, permanent (main) loads, variable (additional) loads and occasional (special) loads. [0003] However, the base floor structure used in the underground engineering currently on the market is laid layer by layer by filling the upper and lower layers in sequence, which will lead to: when the foundation floor structure is used, the upper part of the foun...

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Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an underground engineering foundation floor structure and its construction method, which effectively solves the problem of the poor pressure bearing effect of the underground structure engineering foundation floor and its construction and use method on the market. The floor is prone to local cracking, which affects the service life and stability of the floor. The lack of protective measures around the floor is prone to edge collapse, which affects the normal use of the entire floor. The level of the bottom of the floor is different, and the pressure capacity of the floor Uneven, easily damaged problems

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