CN106049948B - Bag Plastic preform bulkhead underground granary in a kind of insertion slot type - Google Patents

Abstract

A slot-type underground granary with plastic prefabricated walls, including a bottom, a plurality of prefabricated wall panels, a roof, and a multi-functional column. The prefabricated wall panels are integrated by an inner plastic plate and an outer concrete plate structure, its periphery can be connected with the adjacent prefabricated warehouse wall panels and multi-functional columns through connecting devices; The main force-bearing member for pressure, grain side pressure and buoyancy resistance; its feature is that the multi-functional column is divided into several sections from top to bottom, and the inner side of the first section of the uppermost layer is provided with the first layer of prefabricated warehouse wall panels, and the inner side of the second section There is a second layer of prefabricated silo wall panels, and the above-mentioned setting method is used until the bottom layer of prefabricated silo wall panels to form an assembled underground granary structure; the left and right ends of the prefabricated prefabricated silo wall panels are covered with steel plates, and The left end is provided with a convex trapezoidal or semi-elliptical plug, and the right end is provided with a concave trapezoidal or semi-elliptical slot.

Description

A slot-type underground granary with plastic prefabricated walls

technical field

The invention relates to the technical field of underground granaries, in particular to a slot-type underground granary with inner plastic prefabricated walls.

Background technique

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.

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 storage capacity, large floor space and low degree of mechanization.

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 urgently 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 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 work environment of deep foundation pit has a long construction period. After foundation pit excavation 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, resulting in high labor intensity, long construction period and high construction cost. (3) The cost of foundation pit support is high. For this kind of deep foundation pit, "steel pile + waist beam + water sealing steel plate" foundation pit support is a more economical way, but the cost accounts for 25-30% of the civil construction cost, and the construction cost is relatively high.

The invention whose application number is CN200910207155.1 discloses an underground granary, which includes a roof, a wall and a bottom. The steel plates are connected by steel members to form a combined structure of the warehouse wall to prevent water and moisture. The shape of the wall of the underground granary is straight or curved, such as cylindrical, square, semicircular, etc. The invention solves the waterproof and moisture-proof problem of the bottom plate of the warehouse through the outsourcing steel plate. At the same time, when the construction is carried out at the bottom of the warehouse, the steel plate is used as a formwork to speed up the construction and reduce the construction cost. However, the construction is pouring on site, and this construction method requires excavation of the foundation pit, so the overall construction cost is high and the construction period is long. insufficient.

The invention with application number CN200910207154.7 discloses an underground granary, including a roof, a wall and a bottom. The wall is divided into an inner wall and an outer wall. A cavity is formed between them, and the cavity is used for detection and repair of water leakage in the underground granary, and for ventilation of the underground granary and detection of grain conditions. The granary of the invention also needs foundation pit excavation, which has disadvantages such as troublesome construction, high construction cost, and long construction period.

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. The amount is large, which does not conform to the national sustainable development policy of energy conservation and environmental protection. The prefabricated structure can be prefabricated in the factory and assembled on site to realize the industrialization of building structures. At the same time, it can effectively improve the efficiency of materials in building energy saving and structural performance, save energy and resources, reduce construction waste and adverse effects on the environment, and reduce construction site restrictions. Wait. Therefore, in order to provide a "quick, good and economical" new type of underground grain storage, it has become necessary to develop a prefabricated new type of underground storage.

Contents of the invention

The object of the present invention is to provide a slot-type inner plastic prefabricated underground granary. The inner plastic plate of the prefabricated underground granary can replace the waterproof coiled material, and has good waterproof, anti-seepage effect and comprehensive benefits; the prefabricated underground granary The wall panels can be produced in a prefabricated component factory in a standardized manner. The processing and manufacturing quality can be effectively controlled and energy-saving and environmentally friendly. The prefabricated products are assembled on site, and the mechanized installation and construction can be cross-constructed to shorten the construction period. In addition, the prefabricated warehouse structure can be used as a foundation pit support system, saving foundation pit support costs and reducing construction investment.

The solution of the present invention is: a prefabricated underground granary, comprising a bottom, a plurality of prefabricated silo wall panels, a silo roof, and a multifunctional column. The overall structure has a connecting device around it, and the prefabricated warehouse wall panel can be connected with the adjacent prefabricated warehouse wall panel and multi-functional column through the connecting device; the multifunctional column can position the prefabricated warehouse wall panel, and the The depth is greater than the depth of the bottom of the warehouse, and it is the main force-bearing member that bears the earth pressure, the lateral pressure of the grain and the resistance to the buoyancy; it is characterized in that: the multi-functional column is divided into several sections from top to bottom, and the first section of the uppermost layer is equipped with the first layer Prefabricated warehouse wall panels, the inner side of the second section is provided with a second layer of prefabricated warehouse wall panels, using the above-mentioned setting method, until the bottom layer of prefabricated warehouse wall panels, forming an assembled underground granary structure; the prefabricated prefabricated warehouse wall panels on the left 1. The right end is covered with a steel plate, and the left end is provided with a convex trapezoidal or semi-elliptical plug, and the right end is provided with a concave trapezoidal or semi-elliptical slot.

The present invention is characterized in that the multifunctional column of the prefabricated warehouse wall board adopts steel column or concrete with steel embedded parts, and the multifunctional column is provided with positioning steel components. The multi-functional column adopts steel column or is equipped with steel embedded parts, which can make the adjacent prefabricated warehouse wall plate and multi-functional column conveniently welded; the positioning steel member of the multi-functional column can be accurately positioned when the prefabricated warehouse wall plate is installed Provide fixation before the prefabricated warehouse wall panels are welded with the multifunctional columns.

The present invention is also characterized in that the circumferential direction of the prefabricated warehouse wall boards is horizontal, and the convex trapezoidal or semi-elliptical plugs of each prefabricated warehouse wall board are inserted into the concave trapezoidal or semi-elliptical slots of the adjacent prefabricated warehouse wall boards; The prefabricated warehouse wall panels are welded to the multifunctional columns, and the vertical joints on the inner side of the adjacent prefabricated warehouse wall panels are directly connected by butt welding and/or connected by connecting steel plates. Firstly, weld the outer sides of the left and right ends of the first prefabricated silo wall to the multifunctional column, and then insert the left-end convex trapezoidal or semi-elliptical plug of the adjacent prefabricated silo wall on the right into the concave hole of the adjacent silo wall. The trapezoidal or semi-elliptical slot at the right end is welded with the multi-functional column, and the installation is carried out in sequence according to the above welding method until the installation of the prefabricated warehouse wall of this layer is completed. In this way, not only can the prefabricated warehouse wall and the multi-functional column form an integral structure to bear the force together, but also the prefabricated warehouse wall can be welded to form a closed whole in the circumferential direction for waterproof, moisture-proof and seepage-proof joints; in addition, adjacent prefabricated warehouse walls The board slot connection method makes the joint form and construction simpler, thereby speeding up the construction speed and greatly shortening the construction period.

The present invention is also characterized in that the inner plastic plate of the prefabricated warehouse wall is connected with the outer concrete by anchors, U-shaped pre-embedded steel plates are arranged at the upper and lower ends of the prefabricated warehouse wall (3), and the inner plastic plates extend respectively on the inner side of the prefabricated warehouse wall U-shaped pre-embedded steel plates to the upper and lower ends. In this way, the inner plastic board of the prefabricated warehouse wall board can replace the waterproof membrane, which has better waterproof, anti-seepage effect and comprehensive benefits; the plastic board and the concrete anchor are connected to form a whole, and the anchor can resist the earth pressure Under the action, there is a shearing effect between the plastic and the concrete slab, and at the same time, the bonding force between the anchor and the concrete is very good to prevent the plastic slab from detaching from the concrete. Inner plastic prefabricated silo wall panels avoid heavy work during the construction of silo wall waterproofing membranes, save construction time for silo wall waterproofing, and reduce labor costs; in addition, prefabricated silo wall panels can be produced in a prefabricated component factory in a standardized manner, and the processing and manufacturing quality It can not only effectively control but also save energy and protect the environment. Prefabricated products are assembled on site, and mechanized installation and construction can be cross-constructed to shorten the construction period. U-shaped pre-embedded steel plates are arranged at the upper and lower ends of the prefabricated warehouse wall panels, so that the upper and lower prefabricated warehouse wall panels can be easily connected by connecting steel plates through the U-shaped pre-embedded steel plates to form an integral force-bearing structure.

The present invention is also characterized in that the vertical outer sides of the prefabricated warehouse wall panels are flush, and the inner and outer sides of the upper and lower adjacent prefabricated warehouse wall panels are welded and connected with connecting steel plates; Waterproof concrete with the same or higher strength grade as the prefabricated warehouse wall is poured in the cavity. The earth pressure on the outside of the underground silo is greater than the lateral pressure of the grain inside on the silo wall. Therefore, in the design of the silo wall structure, it is the most unfavorable condition that the underground silo is only subjected to earth pressure when the silo is empty. The pressure of the soil on the silo wall gradually increases from top to bottom. Therefore, the thickness of each prefabricated silo wall should be designed with variable cross-section according to the force characteristics of the silo wall to be more reasonable and the construction cost of the silo wall to be more economical. The vertical outer sides of the prefabricated warehouse panels are flush, which not only makes it easier for each layer of prefabricated warehouse panels to be welded and positioned with the multi-functional columns, but also the inner side can be adjusted according to the actual stress conditions to meet the reasonable variable cross-section design requirements. The inner and outer sides of the upper and lower adjacent prefabricated warehouse wall panels are welded and connected by connecting steel plates, and waterproof concrete is poured between them, so that the structural design requirements of the upper and lower adjacent prefabricated panels can be met. The waterproofing of the lap joints provides two reliable waterproofing measures.

The present invention is also characterized in that the inner plastic plate of the prefabricated warehouse wall panel is connected with the outer concrete by anchors, a first pre-embedded steel plate is provided on the inner side of the upper side of the prefabricated warehouse wall board, a second pre-embedded steel plate is provided on the inner side of the lower side, and the inner plastic plate is placed on the inner side of the prefabricated warehouse wall board. The upper side of the inner side of the prefabricated warehouse wall board extends to the first embedded steel plate, and the lower side of the inner side of the prefabricated warehouse wall board extends to the second embedded steel plate.

In this way, the inner plastic board of the prefabricated warehouse wall board can replace the waterproof membrane, which has better waterproof, anti-seepage effect and comprehensive benefits; the plastic board and the concrete anchor are connected to form a whole, and the anchor can resist the earth pressure Under the action, there is a shearing effect between the plastic and the concrete slab, and at the same time, the bonding force between the anchor and the concrete is very good to prevent the plastic slab from detaching from the concrete. Inner plastic prefabricated silo wall panels avoid heavy work during the construction of silo wall waterproofing membranes, save construction time for silo wall waterproofing, and reduce labor costs; in addition, prefabricated silo wall panels can be produced in a prefabricated component factory in a standardized manner, and the processing and manufacturing quality It can not only effectively control but also save energy and protect the environment. Prefabricated products are assembled on site, and mechanized installation and construction can be cross-constructed to shorten the construction period. The first pre-embedded steel plate is arranged on the inner side of the upper side of the prefabricated warehouse wall, and the second embedded steel plate is provided on the inner side of the lower side. In this way, the upper and lower prefabricated warehouse wall panels can pass through the first embedded steel plate of the lower warehouse wall and the second embedded steel plate of the lower warehouse wall. The second pre-embedded steel plate is connected with a connecting steel plate to form an integral force-bearing structure.

The present invention is also characterized in that the vertical outer side of the prefabricated warehouse wall panels is flush, and the horizontal joints on the inner side of the upper and lower adjacent prefabricated warehouse wall panels are directly connected by butt welding and/or welded connection with connecting steel plates. In this way, the butt welding and/or connecting steel plates on the inner side of the upper and lower adjacent prefabricated warehouse wall panels make the upper and lower prefabricated warehouse wall panels form an integral structure, and the steel plates on the warehouse walls form a closed waterproof measure at the node connection.

The present invention is also characterized in that the inner plastic plate of the prefabricated warehouse wall panel is connected with the outer concrete by anchors, a first pre-embedded steel plate is provided on the inner side of the upper side of the prefabricated warehouse wall board, a second pre-embedded steel plate is provided on the inner side of the lower side, and the inner plastic plate is placed on the inner side of the prefabricated warehouse wall board. The inner upper side of the prefabricated warehouse wall plate extends to the first embedded steel plate, and the inner lower side of the prefabricated warehouse wall plate extends to the second embedded steel plate. The lower end is provided with a convex trapezoidal or semi-elliptical plug, and the upper end is provided with a concave trapezoidal or semi-elliptical shaped slot. In this way, the inner plastic board of the prefabricated warehouse wall board can replace the waterproof membrane, which has better waterproof, anti-seepage effect and comprehensive benefits; the plastic board and the concrete anchor are connected to form a whole, and the anchor can resist the earth pressure Under the action, there is a shearing effect between the plastic and the concrete slab, and at the same time, the bonding force between the anchor and the concrete is very good to prevent the plastic slab from detaching from the concrete. Inner plastic prefabricated silo wall panels avoid heavy work during the construction of silo wall waterproofing membranes, save construction time for silo wall waterproofing, and reduce labor costs; in addition, prefabricated silo wall panels can be produced in a prefabricated component factory in a standardized manner, and the processing and manufacturing quality It can not only effectively control but also save energy and protect the environment. Prefabricated products are assembled on site, and mechanized installation and construction can be cross-constructed to shorten the construction period. The first pre-embedded steel plate is arranged on the inner side of the upper side of the prefabricated warehouse wall, and the second embedded steel plate is provided on the inner side of the lower side. In this way, the upper and lower prefabricated warehouse wall panels can pass through the first embedded steel plate of the lower warehouse wall and the second embedded steel plate of the lower warehouse wall. The second pre-embedded steel plate is connected with a connecting steel plate to form an overall force-bearing structure; the lower end of the prefabricated warehouse wall plate is provided with a convex trapezoidal or semi-elliptical plug, and the upper end is provided with a concave trapezoidal or semi-elliptical slot, which can be conveniently used. The upper and lower adjacent prefabricated warehouse wall panels are quickly connected, thereby speeding up the construction speed and greatly shortening the construction period.

The present invention is also characterized in that the vertical outer sides of the prefabricated warehouse wall panels are flush, and the convex trapezoidal or semi-elliptical plugs at the lower end of each prefabricated warehouse wall panel are inserted into the concave trapezoidal or semi-elliptical slots at the top of the adjacent prefabricated warehouse wall panels. Inside; the horizontal joints on the inner side of the upper and lower adjacent prefabricated warehouse walls are directly connected by butt welding and/or welded by connecting steel plates. The convex trapezoidal or semi-elliptical plug at the lower end of each prefabricated warehouse wall can provide positioning and connection for the installation of the adjacent lower warehouse wall, and the concave trapezoidal or semi-elliptical slot at the upper end of the lower warehouse wall can play a role. Constrain the relative displacement in the radial direction and resist the shear force at the joint connection.

The present invention is also characterized in that the inner plastic plates of adjacent prefabricated warehouse wall panels are connected by connecting plastic plates, and the connecting plastic plates are glued or welded to the inner plastic plates of the prefabricated warehouse wall panels. The connecting plastic plates at the overlapping parts of the upper and lower prefabricated warehouse walls make the inner plastic plates of the upper and lower adjacent warehouse walls form a closed waterproof layer, thereby preventing groundwater from flowing or seeping into the interior of the underground warehouse.

The invention is characterized in that the bottom of the warehouse adopts a double-sided steel plate concrete composite structure, and the upper and lower steel plates on the bottom plate and the concrete between them are connected by anchor nails. The steel plate in the warehouse wall of this double-sided composite structure is used as the formwork of the warehouse floor and replaces the steel bar, which saves the construction cost of the warehouse wall, reduces the construction difficulty of the warehouse wall, and speeds up the overall construction speed; the double-layer steel plate concrete composite structure improves the rigidity of the warehouse wall. and strength, effectively resisting soil pressure and grain pressure, which is conducive to the expansion of the underground warehouse to a deeper and larger direction, which increases the scope of application of the warehouse type, and is more conducive to the waterproof and moisture-proof problems of the granary.

The present invention is also characterized in that the warehouse roof adopts a concrete-steel composite structure. In this way, the above-mentioned structure fully exerts the compressive resistance of concrete and the tensile capacity of steel plates, making the stress of the roof structure of large-span warehouses more reasonable, and steel plates can be used as formwork during construction, which greatly reduces the difficulty of construction and can also speed up construction. speed.

The present invention is also characterized in that the multifunctional column adopts a hollow column or a solid column whose section form is a straight line or a curve.

The present invention is characterized in that the construction method includes the following steps: (1) driving the multifunctional column into the ground at a predetermined position according to the design requirements to a certain depth; (2) excavating the first layer of soil in the area surrounded by the multifunctional column; (3) ) After excavating the first layer of soil, install the first layer of prefabricated warehouse wall panels on the inner side of the multifunctional column; (4) After installing the first layer of prefabricated warehouse wall panels, continue to dig down the second layer of soil; (5) ) Install the second layer of prefabricated warehouse wall panels on the inner side of the multifunctional column; (6) Install the prefabricated warehouse wall panels downwards in sequence according to the construction method of the above steps (4)-(5) until the bottom of the warehouse; (7) Carry out the construction of the bottom of the warehouse; (8) finally carry out the construction of the roof and beams of the warehouse, that is, complete the overall structure of the underground granary. The depth of the multi-functional column driven into the ground is determined based on various factors such as the foundation bearing capacity, buoyancy, soil pressure on the warehouse wall, and grain side pressure. In addition, the multi-functional column can also replace the uplift pile to resist the buoyancy of the groundwater on the silo; the multi-functional column can position the prefabricated silo wall in the vertical and circumferential directions to ensure that each layer of the prefabricated silo wall It is vertical and vertical, and forms a ring in the circular direction, so that the force bearing is more reasonable; after the construction of the multifunctional column is completed, it is installed in layers from top to bottom along the height; when installing each layer of prefabricated warehouse wall panels, the height The space is greater than or equal to the height of the prefabricated warehouse wall and the diameter is greater than or equal to the outer diameter of the warehouse. At the same time, it is ensured that the soil does not collapse during the excavation process, so as to leave a construction space for the installation of the prefabricated warehouse wall and ensure the safety of the construction of the warehouse wall. It goes smoothly; when the excavation depth is below the groundwater level, it is necessary to dewater first and then excavate; after installing each layer of prefabricated warehouse wall panels, grout is injected between the soil around the warehouse wall and the prefabricated warehouse wall panels, so that , Soil, slurry and prefabricated silo panels form a dense whole to ensure that when the next layer of soil is excavated, the soil of this layer will not collapse, thereby ensuring the safety of the lower soil when excavating. The ring direction of each prefabricated warehouse wall panel is connected by slots. First, the left and right outer sides of the first prefabricated warehouse wall panel are welded to the multifunctional column, and then the left end of the adjacent prefabricated warehouse The trapezoidal or semi-elliptical plug is inserted into the concave trapezoidal or semi-elliptical slot of the adjacent prefabricated warehouse wall and welded. The concave trapezoidal or semi-elliptical slot at the right end is welded to the multi-functional column, and the welding method is followed in sequence. Install until the installation of the prefabricated warehouse wall panels on this layer is completed. The vertical outer sides of the adjacent upper and lower prefabricated warehouse panels are flush, and the connection method is as follows: (1) The inner and outer sides of the ends of the upper and lower adjacent prefabricated warehouse panels are welded and connected by connecting steel plates, and the adjacent prefabricated warehouse wall panels and the connection In the cavity surrounded by the steel plate, pour waterproof concrete with the same strength level as the prefabricated warehouse wall plate or one level higher strength level, and then weld the inner plastic plate of the upper and lower warehouse wall plates with the connecting plastic plate close to the inner connecting steel plate; (2) the upper and lower phases The horizontal seam adjacent to the inner side of the prefabricated warehouse wall is directly connected by butt welding and/or welded by connecting steel plates, and then the inner plastic plates of the upper and lower warehouse walls are welded and connected by connecting plastic plates close to the butt weld or the inner side of the connecting steel plates; (3 ) When the lower end of the prefabricated warehouse wall panel is provided with a convex trapezoidal or semi-elliptical plug and the upper end is provided with a concave trapezoidal or semi-elliptical slot, the convex trapezoidal or semi-elliptical plug at the lower end of each prefabricated warehouse wall panel is inserted into the corresponding In the concave trapezoidal or semi-elliptical slot adjacent to the top of the prefabricated warehouse wall, the horizontal joints on the inner side of the upper and lower adjacent prefabricated warehouse walls are directly connected by butt welding and/or connected by connecting steel plates, and then cling to the butt weld or The inner side of the connecting steel plate is welded and connected with the connecting plastic plate on the inner side of the upper and lower bin wall panels. According to the above construction method, the soil body is excavated and the prefabricated silo wall panels are installed sequentially from top to bottom. The cylindrical silo body structure formed by each layer of silo wall panels can be used as the foundation pit support system. The combination of the body structure and the foundation pit support system not only saves the cost of foundation pit support alone, greatly reduces the construction investment, but also greatly shortens the construction period of the entire project.

Description of drawings

Figure 1 Layout plan of the first, second and third underground warehouses

Figure 2 Sectional layout of the first, second and third underground warehouses

Figure 3 Schematic diagram of the cross section of the first type of single prefabricated warehouse wall panel

Figure 4 Schematic diagram of the second type of monolithic prefabricated silo wall panel

Figure 5 Sectional schematic diagram of the third type of single prefabricated warehouse wall panel

Figure 6 Schematic diagram of the layout of the first, second and third precast concrete slabs

Figure 7 Schematic diagram of the first type of warehouse wall node

Figure 8 Schematic diagram of the second warehouse wall node

Figure 9 Schematic diagram of the third warehouse wall node

In the accompanying drawings: 1 is a multifunctional column; 3 is a prefabricated warehouse wall; 4 is a roof; 5 is a bottom; 10 is a grain inlet and outlet; The first embedded steel plate; 16 is the second embedded steel plate.

Detailed ways

Embodiment one

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 6 and Fig. 7: the present embodiment provides a slot-type underground granary with plastic prefabricated walls inside. It includes a warehouse bottom 5, a plurality of prefabricated warehouse wall panels 3, a warehouse roof 4, and a multifunctional column 1. The prefabricated warehouse wall panels 3 are an integral structure composed of an inner plastic board 13 and an outer concrete board, and there are connecting devices on the periphery. The prefabricated warehouse wall panel 3 can be connected with the adjacent prefabricated warehouse wall panel 3 and the multifunctional column 1 through the connecting device; the multifunctional column can position the prefabricated warehouse wall panel 3 . The multifunctional column 1 is divided into several sections from top to bottom, the inner side of the first section of the uppermost layer is provided with a first layer of prefabricated warehouse wall panels 3, and the inner side of the second section is provided with a second layer of prefabricated warehouse wall panels 3, using the above-mentioned setting method , until the bottom layer of prefabricated warehouse wall 3 forms an assembled underground granary structure; the left and right ends of the prefabricated prefabricated warehouse wall 3 are covered with steel plates, and the left end is provided with a convex trapezoidal or semi-elliptical plug, and the right end Features recessed trapezoidal or semi-elliptical slots.

The multifunctional column of the prefabricated warehouse wall panel adopts steel column or concrete with steel embedded parts.

The inner plastic plate 13 of the prefabricated warehouse wall panel 3 is connected with the outer concrete by anchors, U-shaped embedded steel plates are arranged at the upper and lower ends of the prefabricated warehouse wall panel 3, and the inner plastic plate 13 extends to the upper and lower sides of the prefabricated warehouse wall panel 3 respectively. The U-shaped pre-embedded steel plate at the lower end.

The prefabricated warehouse wall panels 3 are horizontally aligned in the circumferential direction, and the convex trapezoidal or semi-elliptical plugs of each prefabricated warehouse wall panel 3 are inserted into the concave trapezoidal or semi-elliptical slots of the adjacent prefabricated warehouse wall panels 3; The prefabricated warehouse wall panel 3 is welded to the multifunctional column 1, and the vertical joints on the inner side of the adjacent prefabricated warehouse wall panel 3 are directly connected by butt welding and/or welded by connecting steel plates.

It is characterized in that: the vertical outer sides of the prefabricated warehouse wall panels 3 are flush, and the inner and outer sides of the upper and lower adjacent prefabricated warehouse wall panels 3 are welded and connected by connecting steel plates; the adjacent prefabricated warehouse wall panels 3 and the connecting The cavity surrounded by the steel plate is poured with waterproof concrete of the same strength grade as the prefabricated warehouse wall plate 3 or one grade higher.

Adjacent prefabricated warehouse wall panels 3 inner plastic plates 13 are connected with connecting plastic plates, and the connecting plastic plates are glued or welded with prefabricated warehouse wall panels 3 inner plastic plates 13 .

Embodiment two

As shown in Fig. 1, Fig. 2, Fig. 4, Fig. 6 and Fig. 8: the present embodiment provides a slot-type underground granary with plastic prefabricated walls inside. It includes a warehouse bottom 5, a plurality of prefabricated warehouse wall panels 3, a warehouse roof 4, and a multifunctional column 1. The prefabricated warehouse wall panels 3 are an integral structure composed of an inner plastic board 13 and an outer concrete board, and there are connecting devices on the periphery. The prefabricated warehouse wall panel 3 can be connected with the adjacent prefabricated warehouse wall panel 3 and the multifunctional column 1 through the connecting device; the multifunctional column can position the prefabricated warehouse wall panel 3 . The multifunctional column 1 is divided into several sections from top to bottom, the inner side of the first section of the uppermost layer is provided with a first layer of prefabricated warehouse wall panels 3, and the inner side of the second section is provided with a second layer of prefabricated warehouse wall panels 3, using the above-mentioned setting method , until the bottom layer of prefabricated warehouse wall 3 forms an assembled underground granary structure; the left and right ends of the prefabricated warehouse wall 3 are covered with steel plates, and the left end is provided with a convex trapezoidal or semi-elliptical plug, and the right end is provided with a Available in recessed trapezoidal or semi-elliptical slots.

The multifunctional column of the prefabricated warehouse wall panel adopts steel column or concrete with steel embedded parts.

The inner plastic plate 13 of the prefabricated warehouse wall panel 3 is connected with the outer concrete by anchors. A first embedded steel plate 15 is arranged on the inner side of the upper side of the prefabricated warehouse wall panel, and a second embedded steel plate 16 is arranged on the inner side of the lower side. The inner plastic plate Extend to the first embedded steel plate 15 on the inner side of the prefabricated warehouse wall plate, and extend to the second embedded steel plate 16 on the inner side of the prefabricated warehouse wall plate.

The vertical outer sides of the prefabricated warehouse wall panels 3 are flush, and the horizontal joints on the inner side of the upper and lower adjacent prefabricated warehouse wall panels 3 are directly connected by butt welding and/or welded by connecting steel plates.

Adjacent prefabricated warehouse wall panels 3 inner plastic plates 13 are connected with connecting plastic plates, and the connecting plastic plates are glued or welded with prefabricated warehouse wall panels 3 inner plastic plates 13 .

Embodiment Three

As shown in Fig. 1, Fig. 2, Fig. 5, Fig. 6 and Fig. 9: the present embodiment provides a slot-type underground granary with plastic prefabricated walls inside. It includes a warehouse bottom 5, a plurality of prefabricated warehouse wall panels 3, a warehouse roof 4, and a multifunctional column 1. The prefabricated warehouse wall panels 3 are an integral structure composed of an inner plastic board 13 and an outer concrete board, and there are connecting devices on the periphery. The prefabricated warehouse wall panel 3 can be connected with the adjacent prefabricated warehouse wall panel 3 and the multifunctional column 1 through the connecting device; the multifunctional column can position the prefabricated warehouse wall panel 3 . The multifunctional column 1 is divided into several sections from top to bottom, the inner side of the first section of the uppermost layer is provided with a first layer of prefabricated warehouse wall panels 3, and the inner side of the second section is provided with a second layer of prefabricated warehouse wall panels 3, using the above-mentioned setting method , until the bottom layer of prefabricated warehouse wall 3 forms an assembled underground granary structure; the left and right ends of the prefabricated warehouse wall 3 are covered with steel plates, and the left end is provided with a convex trapezoidal or semi-elliptical plug, and the right end is provided with a Available in recessed trapezoidal or semi-elliptical slots. .

The multifunctional column of the prefabricated warehouse wall panel adopts steel column or concrete with steel embedded parts.

The inner plastic plate 13 of the prefabricated warehouse wall panel 3 is connected with the outer concrete by anchors. A first embedded steel plate 15 is arranged on the inner side of the upper side of the prefabricated warehouse wall panel, and a second embedded steel plate 16 is arranged on the inner side of the lower side. The inner plastic plate Extend to the first embedded steel plate 15 on the inner side of the prefabricated warehouse wall plate, and extend to the second embedded steel plate 16 on the inner side of the prefabricated warehouse wall plate. The lower end is provided with a convex trapezoid or semi-elliptical plug, and the upper end is provided with a concave trapezoid or semi-elliptical slots.

The vertical outer sides of the prefabricated warehouse wall panels 3 are flush, and the convex trapezoidal or semi-elliptical plugs at the lower end of each prefabricated warehouse wall panel 3 are inserted into the concave trapezoidal or semi-elliptical slots at the upper end of the adjacent prefabricated warehouse wall panels 3 ; The horizontal joints on the inner side of the upper and lower adjacent prefabricated warehouse wall panels 3 are directly connected by butt welding and/or welded by connecting steel plates.

Adjacent prefabricated warehouse wall panels 3 inner plastic plates 13 are connected with connecting plastic plates, and the connecting plastic plates are glued or welded with prefabricated warehouse wall panels 3 inner plastic plates 13 .

Embodiment Four

As shown in Figures 1 and 2: this embodiment provides a slot-type underground granary with plastic prefabricated walls inside. It includes a warehouse bottom 5, a plurality of prefabricated warehouse wall panels 3, a warehouse roof 4, and a multifunctional column 1. The prefabricated warehouse wall panels 3 are an integral structure composed of an inner plastic board 13 and an outer concrete board, and there are connecting devices on the periphery. The prefabricated warehouse wall panel 3 can be connected with the adjacent prefabricated warehouse wall panel 3 and the multifunctional column 1 through the connecting device; the multifunctional column can position the prefabricated warehouse wall panel 3 . The multifunctional column 1 is divided into several sections from top to bottom, the inner side of the first section of the uppermost layer is provided with a first layer of prefabricated warehouse wall panels 3, and the inner side of the second section is provided with a second layer of prefabricated warehouse wall panels 3, using the above-mentioned setting method , until the bottom layer of prefabricated warehouse wall 3 forms an assembled underground granary structure; the left and right ends of the prefabricated warehouse wall 3 are covered with steel plates, and the left end is provided with a convex trapezoidal or semi-elliptical plug, and the right end is provided with a Available in recessed trapezoidal or semi-elliptical slots.

The warehouse bottom 5 is a conical structure, and the warehouse bottom 5 adopts a double-sided steel plate concrete composite structure. In this steel plate concrete composite structure, the steel plate is used as the formwork of the warehouse floor and replaces the steel bars. It does not need to lay steel bars during construction, which saves the construction cost of the warehouse wall, reduces the construction difficulty of the warehouse bottom, and speeds up the overall construction speed; the double-layer steel plate concrete composite structure It improves the stiffness and strength of the silo wall, effectively resists earth pressure and grain pressure, and is conducive to the development of underground granaries in a deeper and larger direction, which increases the scope of application of this type of silo, and is more conducive to the waterproof and moisture-proof problems of the granary.

The warehouse roof 4 adopts a double-sided steel plate concrete composite structure, the warehouse roof 4 is provided with a grain inlet and outlet 10, and the warehouse roof 4 is provided with a covering soil 11. The double-sided steel plate concrete composite structure fully exerts the compressive resistance of concrete and the tensile capacity of steel plates, making the stress of the roof structure of large-span warehouses more reasonable, and the steel plates can be used as formwork during construction, which greatly reduces the difficulty of construction and at the same time It can speed up the construction speed. The entrance and exit of grain are equipped with modern grain entry and exit equipment to facilitate the storage and extraction of grain.

The underground granary can realize the storage of solid particles, powder materials or liquid materials. The underground granary has good airtightness and support, and can also realize the storage of powder and liquid materials. With different feeding and discharging equipment, it is widely used.

Embodiment five

This embodiment also provides a construction method for an underground granary with a slot-type plastic prefabricated wall, including the following steps:

1) Drive the multifunctional column 1 into the ground to a certain depth at a predetermined position according to the design requirements;

2) Excavating the first layer of soil in the area surrounded by the multifunctional column 1;

3) After excavating the first layer of soil, install the first layer of prefabricated warehouse wall panels 3 on the inner side of the multifunctional column 1;

4) After installing the first layer of prefabricated warehouse wall panels 3, continue to dig down the second layer of soil;

5) Install the second layer of prefabricated warehouse wall panels 3 on the inner side of the multifunctional column 1;

6) According to the construction method of steps 4)-5) above, install the prefabricated warehouse wall panels 3 downwards in sequence until the bottom position of the warehouse;

7) Carry out the construction of the warehouse bottom 5;

8) Finally, carry out the construction of the warehouse roof 4, that is, complete the overall structure of the underground granary.

The depth of the multi-functional column driven into the ground is determined based on various factors such as the foundation bearing capacity, buoyancy, soil pressure on the warehouse wall, and grain side pressure. In addition, the multi-functional column can also replace the uplift pile to resist the buoyancy of the groundwater on the silo; the multi-functional column can position the prefabricated silo wall in the vertical and circumferential directions to ensure that each layer of the prefabricated silo wall It is vertical and vertical, and forms a ring in the circular direction, so that the force bearing is more reasonable; after the construction of the multifunctional column is completed, it is installed in layers from top to bottom along the height; when installing each layer of prefabricated warehouse wall panels, the height The space is greater than or equal to the height of the prefabricated warehouse wall and the diameter is greater than or equal to the outer diameter of the warehouse. At the same time, it is ensured that the soil does not collapse during the excavation process, so as to leave a construction space for the installation of the prefabricated warehouse wall and ensure the safety of the construction of the warehouse wall. It goes smoothly; when the excavation depth is below the groundwater level, it is necessary to dewater first and then excavate; after installing each layer of prefabricated warehouse wall panels, grout is injected between the soil around the warehouse wall and the prefabricated warehouse wall panels, so that , Soil, slurry and prefabricated silo panels form a dense whole to ensure that when the next layer of soil is excavated, the soil of this layer will not collapse, thereby ensuring the safety of the lower soil when excavating. The ring direction of each prefabricated warehouse wall panel is connected by slots. First, the left and right outer sides of the first prefabricated warehouse wall panel are welded to the multifunctional column, and then the left end of the adjacent prefabricated warehouse The trapezoidal or semi-elliptical plug is inserted into the concave trapezoidal or semi-elliptical slot of the adjacent warehouse wall and welded. The concave trapezoidal or semi-elliptical slot at the right end is welded to the multi-functional column, and the installation is carried out in sequence according to the above welding method , until the installation of the prefabricated warehouse wall panels of this layer is completed. The vertical outer sides of the adjacent upper and lower prefabricated warehouse wall panels are flush, and the connection method is as follows: a. The inner and outer sides of the upper and lower adjacent prefabricated warehouse wall panels are welded and connected by connecting steel plates, and the adjacent prefabricated warehouse wall panels and the connecting steel plates Waterproof concrete with the same or higher strength grade as the prefabricated warehouse wall is poured in the enclosed cavity, and then the inner plastic plate of the upper and lower warehouse wall is welded and connected with the connecting plastic plate close to the inner connecting steel plate; b, the upper and lower adjacent prefabricated The horizontal seam on the inner side of the warehouse wall is directly connected by butt welding and/or welded by connecting steel plates, and then the upper and lower prefabricated warehouse wall inner plastic plates are welded and connected by connecting plastic plates on the inner side of the butt weld or the connecting steel plate; c. When the lower end of the prefabricated warehouse wall panel is provided with a convex trapezoidal or semi-elliptical plug, and the upper end is provided with a concave trapezoidal or semi-elliptical slot, the convex trapezoidal or semi-elliptical plug at the lower end of each prefabricated warehouse wall panel is inserted into the adjacent prefabricated In the concave trapezoidal or semi-elliptical slot on the top of the warehouse wall, the horizontal joints on the inner side of the upper and lower adjacent prefabricated warehouse walls are directly connected by butt welding and/or welding with connecting steel plates, and then cling to the butt welds or connecting steel plates The inner side of the upper and lower warehouse wall panels is welded and connected by connecting plastic plates on the inner side. According to the above construction method, excavate the soil body and install the prefabricated silo wall panels sequentially from top to bottom, the cylindrical silo body structure formed by each layer of prefabricated silo wall panels can be used as the foundation pit support system, so that the silo can be well The warehouse structure and foundation pit support system are integrated into one, which not only saves the cost of foundation pit support alone, greatly reduces construction investment, but also greatly shortens the construction period of the entire project.

Finally, it is noted that the above embodiments are only used to illustrate the technical solution of the present invention without limitation, other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and spirit of the technical solution of the present invention All should be included in the scope of the claims of the present invention.

Claims (11)

1. a kind of prefabricated assembled underground granary, including the prefabricated bulkhead plate (3) of orlop (5), polylith, silo roof (4), multiple function (1), the bulkhead plate (3) combines integral structure for the concrete slab in inner side plastic plate (13) and outside, and there is connection on periphery Device, can be attached by attachment device bulkhead plate (3) with adjacent bulkhead plate (3), multiple function (1)；The multiple function Bulkhead plate (3) can be positioned, its depth anchored into soil is more than orlop (5) depth, is subject to soil pressure, grain lateral pressure With the main bearing member of resistance buoyancy；It is characterized in that：Multiple function (1) is divided into several sections from top to bottom, and the first of the superiors Section inner side is equipped with first layer bulkhead plate (3), and second segment inner side is equipped with second layer bulkhead plate (3), with above-mentioned set-up mode, until Bottom one layer of bulkhead plate (3), forms assembled underground granary structure；The left and right end of the prefabricated bulkhead plate (3) is surrounded by steel Plate, and left end is equipped with that male is trapezoidal or half elliptic plug, right end are equipped with that female is trapezoidal or half elliptic slot.

2. underground granary as claimed in claim 1, it is characterised in that：The multiple function is using steel column or equipped with steel embedded part Concrete.

3. underground granary as claimed in claim 1, it is characterised in that：The prefabricated bulkhead plate (3) is circumferential horizontal concordant, every piece The male of prefabricated bulkhead plate (3) is trapezoidal or half elliptic plug is inserted into that contiguous prefabricated bulkhead plate (3) female is trapezoidal or half elliptic In slot；Every piece of prefabricated bulkhead plate (3) is welded to connect with multiple function (1), and the perps on the inside of contiguous prefabricated bulkhead plate (3) is direct Connected using butt welding and/or be welded to connect with junction steel plate.

4. underground granary as claimed in claim 1, it is characterised in that：Plastic plate (13) on the inside of the prefabricated bulkhead plate (3) It is connected with outside concrete using holdfast, U-shaped pre-embedded steel slab, inner side plastic plate (13) is equipped with prefabricated bulkhead plate (3) upper and lower side The U-shaped pre-embedded steel slab of upper and lower side is extended respectively on the inside of prefabricated bulkhead plate (3).

5. underground granary as claimed in claim 4, it is characterised in that：The vertical outside of the prefabricated bulkhead plate (3) is concordant, on Under the inside and outside both sides in contiguous prefabricated bulkhead plate (3) end be welded to connect with junction steel plate；In contiguous prefabricated bulkhead plate (3) and The water-proof concrete of identical with prefabricated bulkhead plate (3) or high strongest grade is poured in the cavity that junction steel plate surrounds.

6. underground granary as claimed in claim 1, it is characterised in that：Plastic plate (13) on the inside of the prefabricated bulkhead plate (3) It is connected with outside concrete using holdfast, the first pre-embedded steel slab (15) is equipped with the inside of prefabricated bulkhead plate top, following inner side is set There is the second pre-embedded steel slab (16), plastic plate top on the inside of prefabricated bulkhead plate in inner side extends to the first pre-embedded steel slab (15), pre- The second pre-embedded steel slab (16) is extended on the inside of bulkhead plate processed below.

7. underground granary as claimed in claim 6, it is characterised in that：The vertical outside of the prefabricated bulkhead plate (3) is concordant, up and down Horizontal joint on the inside of contiguous prefabricated bulkhead plate (3) is directly connected using butt welding and/or is welded to connect with junction steel plate.

8. underground granary as claimed in claim 1, it is characterised in that：Plastic plate (13) on the inside of the prefabricated bulkhead plate (3) It is connected with outside concrete using holdfast, the first pre-embedded steel slab (15) is equipped with the inside of prefabricated bulkhead plate top, following inner side is set There is the second pre-embedded steel slab (16), plastic plate top on the inside of prefabricated bulkhead plate in inner side extends to the first pre-embedded steel slab (15), pre- Following on the inside of bulkhead plate processed to extend to the second pre-embedded steel slab (16), lower end is equipped with that male is trapezoidal or half elliptic plug, upper end are set There is female trapezoidal or half elliptic slot.

9. underground granary as claimed in claim 8, it is characterised in that：The vertical outside of the prefabricated bulkhead plate (3) is concordant, every piece The male of prefabricated bulkhead plate (3) lower end is trapezoidal or the female of contiguous prefabricated bulkhead plate (3) upper end of half elliptic plug insertion is trapezoidal Or in half elliptic slot；Horizontal joint on the inside of neighbouring prefabricated bulkhead plate (3) is directly connected using butt welding and/or with company Steel plate is connect to be welded to connect.

10. underground granary as claimed in claim 1, it is characterised in that：Plastic plate (13) is used on the inside of contiguous prefabricated bulkhead plate (3) Connection plastic plate connects, and plastic plate (13) is gluing on the inside of connection plastic plate and prefabricated bulkhead plate (3) or welds.

A kind of 11. construction method for building the underground granary described in the claims 1-10 any one, it is characterised in that：Institute Construction method is stated to comprise the following steps：

(1) multiple function is driven underground by certain depth in precalculated position according to design requirement；

(2) surrounded in multiple function and first layer soil is excavated in region；

(3) after first layer soil is excavated, the prefabricated bulkhead plate of first layer is installed on the inside of multiple function；

(4) after installing the prefabricated bulkhead plate of first layer, second layer soil is down excavated in continuation；

(5) the prefabricated bulkhead plate of the second layer is installed on the inside of multiple function；

(6) according to the construction method of above-mentioned (4)-(5) step, prefabricated bulkhead plate is installed downwards successively, until orlop position；

(7) orlop construction is carried out；

(8) silo roof construction is finally carried out, that is, completes the overall structure of underground granary.