Circular precast assembly type underground granary with inside and outside both covered with steel plates

Abstract

Provided is a precast assembly type underground granary. The surface of the underground granary is a circle. The underground granary comprises a granary bottom, a plurality of precast granary wall plates, a granary roof and multifunctional posts. The granary wall plates are arc-shaped precast plate blocks; the periphery of each granary wall plate is provided with a connecting device; and each granary wall plate can be connected with the adjacent granary wall plate and the corresponding multifunctional post through the corresponding connecting device. A granary wall is positioned by the multifunctional posts; the depth of the multifunctional posts anchored in to soil is greater than the depth of the granary bottom; and the multifunctional posts are the main bearing components bearing the pressure of soil and grain and resisting buoyancy. The multifunctional posts are characterized in that each multifunctional post is divided into multiple sections from top to bottom, the first layer of the granary wall plates are arranged on the inner side of the first section of the uppermost layer, the second layer of the granary wall plates are arranged on the inner side of the second section, and a circular assembly type underground granary structure is formed by means of similar arrangement modes until the bottom layer of the granary wall plates are arranged. Each precast granary wall plate is an integral structure formed by covering the inside and the outside of concrete with steel plates, the steel plates and the concrete between the steel plates are connected through holdfasts, and the left end and the right end are covered with the steel plates.

Description

technical field [0001] The invention relates to the technical field of underground granaries, in particular to a circular prefabricated underground granary with steel plates both inside and outside. Background technique [0002] Underground granaries are built under the shallow surface, which can store grain at low temperature all year round, maintain grain quality, inhibit the occurrence of pests, avoid fumigation with toxic chemicals, resist natural damage, and be used for both war and peace. Many experts and scholars agree that it is reasonable to promote the application of underground granaries The new system and new technology of grain storage can realize low-temperature environmental protection, energy saving and land saving, quality assurance and loss reduction, and ecological grain storage. [0003] The existing underground granaries in my country are generally located in general loess areas with low groundwater levels and suitable for sticky areas, such as cave ware...

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Problems solved by technology

[0003] The existing underground granaries in my country are generally located in general loess areas with low groundwater levels and suitable for sticky areas, such as cave warehouses, trumpet warehouses, double-curved arch warehouses, semi-underground warehouses, and cave-shaped trumpet warehouses; Brick structure, small warehouse capacity, large floor area and low degree of mechanization

[0004] In order to build a new type of underground granary that can be popularized and applied in areas with high groundwater levels and complex geological conditions, some national patents and documents have also proposed a circular granary, a large underground rectangle surrounded by cylinders and semi-cylinders, and a pile-enclosed compound type. However, there are still some problems to be solved in the popularization and application of the above-mentioned new warehouse types, such as: (1) Underground grain storage warehouses have high standards of waterproof and moisture-proof requirements

Ensure that the warehouse body does not leak or seep water within the service life; the coiled material used is easy to age, the construction process is complex and difficult, and construction quality problems are prone to occur

(2) The wet working environment of deep foundation pit has a long construction period

After the excavation of the foundation pit and precipitation, the cast-in-place construction of the warehouse floor and the sliding form construction of the warehouse wall need to be carried out in a wet working environment for a long time, which has high labor intensity, long construction period and high construction cost

(3) The cost of foundation pit support is high

The granary of this invention also requires foundation pit excavation, which has disadvantages such as troublesome construction, high construction cost, and long construction period.

[0007] The prefabricated structure is one of the effective ways to realize the industrialization of building structures and building energy saving and emission reduction. For a long time, concrete buildings mainly adopt the traditional operation method of on-site construction, with a low degree of industrialization, water consumption, energy consumption, artificial waste, and sewage discharge. A large amount does not conform to the national sustainable development policy of energy conservation and environmental protection

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