A small underground storage tank and its manufacturing method

Abstract

The invention relates to a small underground reservoir and a manufacturing method thereof. The reservoir comprises a tank body and an access manhole; the tank body comprises a base plate, a tank wall and a top plate; the tank wall is of a circular structure; the top plate is of a dome structure; and the tank body is of a structure formed by pouring plain concrete at one time. According to the manufacturing method of the reservoir, the tank body adopts a layer of HDPE (High-density Polyethylene) anti-permeable film smeared on the tank wall as an outer formwork, and a combined steel formwork matched with the shape of the tank body as an inner formwork through one-time pouring forming; and the access manhole is formed by an outer formwork and an inner formwork through pouring. The manufacturing method of the reservoir concretely comprises the steps of manufacturing the formworks, putting lines in the construction, excavating the tank body, processing a foundation, installing the combined steel formwork, pouring the tank body with concrete, installing the outer formwork and the inner formwork of the access manhole, pouring the access manhole with concrete, disassembling the outer formwork and the inner formwork of the access manhole, coating the anti-permeable film on a tank roof, disassembling the combined steel formwork, earthing the tank roof and the like. According to the small underground reservoir and the manufacturing method thereof provided by the invention, the anti-permeable effect is good, the service life is long, the top space can be effectively utilized, the construction period is short, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of reservoir construction, in particular to a small buried reservoir and a manufacturing method thereof. Background technique [0002] In areas where drinking water sources are scarce, many households or units have built reservoirs to solve domestic water problems. With the continuous development of the economy, although tap water has basically achieved full coverage, due to the needs of water management, especially in winter, water pipes often freeze and crack, and reservoirs still play an important role in some areas. [0003] However, for a long time, reservoirs have been buried in the ground and have various structural forms. Common pool wall materials are brick, stone, and concrete, and most of the roof is a prefabricated block or cast-in-place reinforced concrete structure. Regardless of the existing structure, there are many problems in the process of use: 1. Due to poor treatment of the joint betwe...

AI Technical Summary

Problems solved by technology

Regardless of the existing structure, there are many problems in the process of use: 1. Due to poor treatment of the joint between the pool wall and the pool roof, the water in the pool is often polluted; 2. Due to the limitation of the roof reinforcement or prefabricated panels Due to the limitation of the carrying capacity, the roof is not allowed to cover the soil, and the use of the upper space of the pool is limited; 3. After many years of use in the common rectangular structure pool, cracks appear, serious water leakage occurs, and the service life is short; 4. The pool wall adopts a rectangular shape. structure, the side pressure of the pool wall is high, the concrete pool wall must be reinforced, and the roof of the pool is a reinforced concrete structure, and the top is covered with soil, so the reinforcement must be increased; therefore, the construction period is long and the cost is high.

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