60results about How to "Safe and smooth construction" patented technology

The invention discloses a prefabricated assembly-type underground granary, which comprises a granary bottom, a plurality of prefabricated granary wall plates, a granary top, multifunctional columns and multiple layers of reinforcing columns, wherein the granary wall plates are of integral structures combined by inner-side plastic plates, outer-side plastic plates and concrete slabs between the inner-side plastic plates and the outer-side plastic plates; connecting devices are arranged on the peripheries of the granary wall plates; the granary wall plates can be connected with the adjacent granary wall plates, the multifunctional columns and the multiple layers of reinforcing columns through the connecting devices; plastic plates are clad outside the multifunctional columns and the reinforcing columns, and can be used for locating the granary wall plates; the depths that the multifunctional columns and the reinforcing columns are anchored into earth are deeper than the depth of the granary bottom; the multifunctional columns and the reinforcing columns are main stress components for bearing the pressure of the earth and the lateral pressure of grains and resisting buoyant force. The prefabricated assembly-type underground granary is characterized in that the multifunctional columns are divided into several sections from tops to bottoms; the inner sides of first sections of the uppermost layer are provided with a first layer of the granary wall plates; the inner sides of the second sections are first provided with the reinforcing columns, so that the inner side surfaces of the reinforcing columns are flush with the inner side surfaces of the first layer of the granary wall plates; afterwards, the inner side surfaces of the reinforcing columns are provided with a second layer of the granary wall plates, so that the first layer of the granary wall plates and the second layer of the granary wall plates are partially lapped; the second layer of the granary wall plates and a third layer of the granary wall plate are partially lapped by using a similar arrangement way; the granary wall plates are always lapped until the bottommost layer of the granary wall plates, so as to form a step-shaped assembly-type underground granary structure.