Pilot tunnel water storage system and construction method thereof

Abstract

The invention discloses a pilot tunnel water storage system and a construction method thereof. The pilot tunnel water storage system comprises a plurality of pilot tunnels, a pilot tunnel primary lining structure and a pilot tunnel secondary lining structure. The multiple pilot tunnels constitute a regulating storage tank used for water storage and mutually communicate; the pilot tunnel primary lining structure comprises partition walls which are located between the adjacent pilot tunnels and arranged in the vertical direction; and the pilot tunnel secondary lining structure comprises secondary lining walls arranged on the side faces of the partition walls, the pilot tunnel secondary lining structure and the pilot tunnel primary lining structure act jointly to support the pilot tunnels. Inthe construction process of the pilot tunnel secondary lining structure, the partition walls of the pilot tunnel primary lining structure are not dismantled, thus the partition walls and the secondary lining walls support the pilot tunnels jointly, and the problems that in the prior art, a plurality of layers of pilot tunnels are large in number of conversion times of stress systems, complex in construction, large in settling and high in safety risk are solved.

Description

technical field [0001] The invention relates to the technical field of sponge city construction, in particular to a pilot tunnel water storage system and a construction method thereof. Background technique [0002] Sponge city is a new generation of urban stormwater management concept. It refers to the city's good "elasticity" in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called "water elastic city". The international general term is "low-impact development stormwater system construction". When it rains, it absorbs, stores, infiltrates, and purifies water, and "releases" the stored water for use when needed. [0003] The rainwater storage tank is an important "sponge body" in the sponge city. The construction of the central urban area is severely restricted by the surrounding environment such as roads, bridges, and buildings, and it is necessary to reduce the impact on urban traffic and citizens' lives, so as to...

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Problems solved by technology

[0005] Therefore, the present invention aims to provide a kind of pilot tunnel water storage system and construction method thereof, to solve the multi-layer pilot tunnel water storage system in the prior art, the intermediate partition wall and intermediate partition board of its initial lining all need to be removed, resulting in The multi-layer pilot tunnel has the problems of many switching times of the stress system, complex construction, large settlement and high safety risk

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