CN106088758B - A kind of bilayer assembled underground granary - Google Patents

Abstract

A kind of bilayer assembled underground granary, which includes orlop, outer bulkhead, inner barn wall, silo roof and multiple function；The inner barn wall and outer bulkhead are to be spliced by polylith prefabricated chunk, and there is attachment device on prefabricated chunk periphery, can be attached with contiguous prefabricated plate and multiple function by attachment device prefabricated chunk；The multiple function positions bulkhead, and the depth anchored into soil is more than storehouse bottom plate depth, is subject to soil pressure, pressure and the main bearing member for resisting buoyancy；It is characterized in that：It is integral with multiple function connection between outer bulkhead and inner barn wall, form three-dimensional space structure, shared soil pressure, grain lateral pressure and buoyancy；For ventilation and leakage inspection channel in the gap that outer bulkhead, inner barn wall and multiple function surround；Multiple function is divided into several sections from top to bottom, and first layer bulkhead plate is equipped on the inside of the first segment of top layer, second layer bulkhead plate is equipped on the inside of second segment, and the double-deck assembled underground granary is formed until bottom one layer of bulkhead plate with above-mentioned similar set-up mode.

Description

A double-layer assembled underground granary

technical field

The invention relates to the technical field of underground granaries, in particular to a double-layer assembled underground granary.

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 double-layer assembled underground granary. The wall of the prefabricated assembled underground granary is covered with a steel plate. Warehouse 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. Prefabricated products are assembled on site, mechanized installation and construction, and cross-construction can be used 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 double-layer assembled underground granary, which includes a bottom, an outer wall, an inner wall, a roof and a multifunctional column; the inner wall and the outer wall are uniform It is composed of multiple prefabricated panels, and there are connecting devices around the prefabricated panels, through which the prefabricated panels can be connected with adjacent prefabricated panels and multi-functional columns; The depth is greater than the depth of the warehouse floor, and it is the main force-bearing member that bears earth pressure, grain pressure and resists buoyancy; it is characterized in that: the outer warehouse wall and the inner warehouse wall are connected as a whole by multi-functional columns to form a three-dimensional space structure. Undertake earth pressure, grain side pressure and buoyancy; provide ventilation and water leakage inspection channels in the gap surrounded by the outer warehouse wall, inner warehouse wall and multi-functional column; the multi-functional column is divided into several sections from top to bottom, the first section on the uppermost layer The inner side is provided with the first layer of warehouse wall panels, and the second section of the inner side is provided with the second layer of warehouse wall panels. With the above-mentioned setting method, the bottom layer of warehouse wall panels is used to form a double-layer assembled underground granary.

The present invention is characterized in that the multifunctional column adopts a steel column or a concrete column provided with steel embedded parts, and the multifunctional column is provided with positioning steel components. The multi-function column adopts steel column or is equipped with steel embedded parts, which can make the adjacent warehouse wall plate and multi-function column conveniently welded; The prefabricated silo wall panels and the multifunctional columns provide fixation before welding.

The present invention is also characterized in that the inner wall or the outer wall is a structure in which the inner steel plate and the outer concrete plate are integrated, and the inner steel plate and the concrete are connected by anchors. In this way, the steel plate of the prefabricated warehouse wall can replace the waterproof coiled material and the inner steel bar of the warehouse wall, which has good waterproof, anti-seepage effect and comprehensive benefits; the steel plate and the concrete are connected by anchors to form a steel plate concrete composite structure prefabricated warehouse wall, It not only reduces the heavy work of tying steel bars on the warehouse wall, saves the time for making the warehouse wall, reduces labor costs, but also reduces the number and cost of formwork used for pouring ordinary reinforced concrete structures; in addition, the prefabricated warehouse panels can be prefabricated Standardized production in the component factory, the quality of processing and manufacturing can be effectively controlled and energy-saving and environmentally friendly. Prefabricated products are assembled on site, mechanized installation and construction, cross-construction can be used, and the construction period can be shortened; finally, the prefabricated warehouse wall with combined structure has high bearing capacity and good crack resistance. , strong energy dissipation capacity, good ductility and other advantages.

The present invention is also characterized in that the four sides of the prefabricated panels that are spliced into the outer warehouse wall are all wrapped with U-shaped steel plates. In this way, the U-shaped steel plate wrapping angle of the prefabricated plate can make the prefabricated plate and the multifunctional column conveniently welded.

The present invention is also characterized in that the prefabricated panels spliced into the outer warehouse wall are flush with the horizontal outer side, and the outer side is directly welded to the multi-functional column.

The present invention is also characterized in that the prefabricated panels spliced into the outer warehouse wall are aligned vertically and outwardly, and the outer and inner sides of the adjacent upper and lower prefabricated panels are welded with connecting steel plates; the outer and inner connecting steel plates and adjacent prefabricated panels form a Waterproof concrete of the same or higher strength level 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 prefabricated panels spliced into the inner warehouse wall are flush to the horizontal outer side, and the outer side is directly welded and connected with the multifunctional column, and the inner side of the left and right adjacent prefabricated panels is welded with connecting steel plates, and the multifunctional column, the corresponding Waterproof concrete with the same or higher strength grade as the prefabricated warehouse wall is poured in the cavity surrounded by the adjacent prefabricated slab and the connecting steel plate. In this way, the connecting steel plates are welded and connected on the inner side of the warehouse wall. On the one hand, there is a second waterproof measure at the node, and the multifunctional column, the prefabricated warehouse wall and the concrete between them form an integral structure, so that the force It is more reasonable, and the node construction is simpler and more convenient.

The present invention is also characterized in that the prefabricated panels spliced into the inner warehouse wall are aligned vertically and outwardly, and the outer and inner sides of the adjacent upper and lower prefabricated panels are welded with connecting steel plates; the outer and inner connecting steel plates and adjacent prefabricated panels form a Waterproof concrete of the same or higher strength level as the prefabricated warehouse wall is poured in the cavity. In the design of the warehouse wall structure, the inner warehouse wall of the underground warehouse is subjected to the lateral pressure of the grain, and the pressure of the grain on the warehouse wall gradually increases along the warehouse wall from top to bottom. Therefore, the thickness of each layer of prefabricated warehouse wall boards should The variable cross-section design can be more reasonable according to the force characteristics, and the construction cost of the warehouse wall can 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 a single-layer two-way reinforcement or reinforcement mesh is arranged in the prefabricated plate.

The present invention is also 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 anchors. 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 outer warehouse wall panels at the corresponding positions of the multifunctional columns, and then install the first layer of prefabricated inner warehouse wall panels to form the first layer of double-layer prefabricated warehouse wall panels. (4) After installing the first layer of double-layer prefabricated warehouse wall panels, continue to dig down the second layer of soil; (5) Install the second layer of prefabricated outer warehouse wall panels at the corresponding position of the multi-functional column, and then install the second layer Prefabricated inner silo panels to form a second layer of double-layer prefabricated silo panels. (6) According to the construction method of the above steps (4)-(5), install the prefabricated double-layer warehouse wall panels in sequence until the bottom of the warehouse; (7) carry out the construction of the warehouse bottom; (8) finally carry out the warehouse roof and The construction of the beams is to 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 is carried out smoothly; when the excavation depth is below the groundwater level, it is necessary to carry out precipitation first, and then excavate; after installing each layer of prefabricated silo wall panels, grout is injected between the soil around the silo wall and the prefabricated silo wall panels to ensure When the next layer of soil is excavated, the soil of this layer will not collapse, thereby ensuring the safety of the excavation of the lower layer of soil.

When installing each layer of prefabricated warehouse wall panels, first weld the outer warehouse wall panels to the adjacent multi-functional columns to ensure the reliable connection between the prefabricated warehouse wall panels and the multi-functional columns, and then weld the inner warehouse wall panels to the adjacent multi-functional columns , use the connecting steel plate to weld the horizontally adjacent inner warehouse wall plate, and finally pour the same or one higher strength level waterproofing as the prefabricated inner warehouse wall plate in the cavity surrounded by the multi-functional column, the adjacent prefabricated inner warehouse wall plate and the connecting steel plate. concrete.

After the left and right adjacent horizontal prefabricated wall panels are installed, install the vertically adjacent vertical prefabricated outer wall panels: first align the prefabricated panels of the inner wall vertically and outwardly, and then weld the adjacent steel panels on the outer and inner sides with connecting steel plates. The upper and lower prefabricated slabs are finally poured in the cavity surrounded by the outer and inner connecting steel plates and adjacent prefabricated slabs with the same or a higher strength level as the prefabricated warehouse wall. After the upper and lower adjacent vertical prefabricated outer warehouse wall panels are installed, install the upper and lower adjacent vertical prefabricated inner warehouse wall panels: first align the upper and lower vertical and outer sides of the prefabricated panels of the outer warehouse wall, and then weld them on the outer and inner sides with connecting steel plates Adjacent to the upper and lower prefabricated panels, finally pour waterproof concrete of the same or higher strength level as the prefabricated warehouse wall panels in the cavity surrounded by the outer and inner connecting steel plates and adjacent prefabricated 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 Floor plan of the underground warehouse

Figure 2 Sectional layout of the underground warehouse

Figure 3 Schematic diagram of the section of a single prefabricated warehouse wall panel

Figure 4 Schematic diagram of the layout of the first precast concrete slab

Figure 5 Schematic diagram of the layout of precast concrete slabs in the second section and the following sections

Figure 6 Schematic diagram of the first warehouse wall node

Figure 7 Schematic diagram of the second warehouse wall node

In the accompanying drawings: 1 is a multifunctional column; 2 is an outer warehouse wall; 3 is an inner warehouse wall; 4 is a warehouse roof; 5 is a warehouse bottom; 6 is a connecting steel plate; Inner steel plate; 14 is a grooved ring beam.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment one

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 6: this embodiment provides a double-layer assembled underground granary. It includes a warehouse bottom 5, an outer warehouse wall 2, an inner warehouse wall 3, a warehouse roof 4 and a multifunctional column 1; the inner warehouse wall 3 and the outer warehouse wall 2 are all spliced by a plurality of prefabricated panels, and the surrounding areas of the prefabricated panels are There is a connecting device, through which the prefabricated panels can be connected with the adjacent prefabricated panels and the multifunctional column 1; the multifunctional column 1 positions the warehouse wall. The outer warehouse wall 2 and the inner warehouse wall 3 are connected as a whole with a multifunctional column 1 to form a three-dimensional space structure, which jointly bears the earth pressure, grain side pressure and buoyancy; the outer warehouse wall 2, the inner warehouse wall 3 and the multifunctional column 5 provides ventilation and water leakage inspection channels in the gap; the multi-functional column 1 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 warehouse wall panels 3, and the inner side of the second section is provided with the second Layer storehouse wallboard 3, with above-mentioned arrangement mode, until the bottom storehouse wallplate 3, forms double-deck prefabricated underground granary.

The multifunctional column 1 is a steel column or a concrete column provided with steel embedded parts.

The inner warehouse wall 3 or the outer warehouse wall 2 is a structure in which the inner steel plate 13 and the outer concrete plate are integrated, and the inner steel plate 13 and the concrete are connected by anchors.

The prefabricated panels spliced to form the outer warehouse wall 2 are flush to the horizontal outer side, and the outer side is directly welded to the multifunctional column 1 . The prefabricated panels spliced into the outer warehouse wall 2 are aligned vertically and outwardly, and the outer and inner sides of the adjacent upper and lower prefabricated panels are welded with connecting steel plates 6; the cavity surrounded by the connecting steel plates 6 and adjacent prefabricated panels Waterproof concrete 12 that is the same as or higher than the strength grade of the prefabricated warehouse wall panel 3 is poured in.

The prefabricated panels spliced into the inner warehouse wall 3 are flush to the horizontal outer side, and the outer side is directly welded to the multifunctional column 1, and the inner side of the left and right adjacent prefabricated panels is welded with the connecting steel plate 6, and the multifunctional column 1, the adjacent prefabricated Waterproof concrete 12 that is the same as or one strength level higher than the prefabricated warehouse wall panel 3 is poured in the cavity surrounded by the plate and the connecting steel plate 6 . The prefabricated panels spliced into the inner warehouse wall 3 are aligned vertically and outwardly, and the outer and inner sides of the adjacent upper and lower prefabricated panels are welded with connecting steel plates 6; the cavity surrounded by the connecting steel plates 6 and adjacent prefabricated panels Waterproof concrete 12 that is the same as or higher than the strength grade of the prefabricated warehouse wall panel 3 is poured in.

Embodiment two

As shown in Figure 1 and Figure 2: this embodiment provides a double-layer assembled underground granary. It includes a warehouse bottom 5, an outer warehouse wall 2, an inner warehouse wall 3, a warehouse roof 4 and a multifunctional column 1; the inner warehouse wall 3 and the outer warehouse wall 2 are all spliced by a plurality of prefabricated panels, and the surrounding areas of the prefabricated panels are There is a connecting device, through which the prefabricated panels can be connected with the adjacent prefabricated panels and the multifunctional column 1; the multifunctional column 1 positions the warehouse wall. The outer warehouse wall 2 and the inner warehouse wall 3 are connected as a whole with a multifunctional column 1 to form a three-dimensional space structure, which jointly bears the earth pressure, grain side pressure and buoyancy; the outer warehouse wall 2, the inner warehouse wall 3 and the multifunctional column 5 provides ventilation and water leakage inspection channels in the gap; the multi-functional column 1 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 warehouse wall panels 3, and the inner side of the second section is provided with the second Layer storehouse wallboard 3, with above-mentioned arrangement mode, until the bottom storehouse wallplate 3, forms double-deck prefabricated underground granary.

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 three

This embodiment also provides a construction method for a double-deck fabricated underground granary, comprising 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 outer warehouse wall panel 2 at the corresponding position of the multifunctional column 1, and then install the first layer of prefabricated inner warehouse wall panel 3, thereby forming the first layer of double-layer prefabricated warehouse Siding.

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

5) Install the second layer of prefabricated outer warehouse wall panels 2 at the corresponding positions of the multifunctional column 1, and then install the second layer of prefabricated inner warehouse wall panels 3, thereby forming a second layer of double-layer prefabricated warehouse wall panels.

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

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

8) Finally, the construction of the warehouse roof 4 and the beams is carried out, that is, the overall structure of the underground granary is completed.

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 is carried out smoothly; when the excavation depth is below the groundwater level, it is necessary to carry out precipitation first, and then excavate; after installing each layer of prefabricated silo wall panels, grout is injected between the soil around the silo wall and the prefabricated silo wall panels to ensure When the next layer of soil is excavated, the soil of this layer will not collapse, thereby ensuring the safety of the excavation of the lower layer of soil.

When installing each layer of prefabricated warehouse wall panels, first weld the outer warehouse wall panels to the adjacent multi-functional columns to ensure the reliable connection between the prefabricated warehouse wall panels and the multi-functional columns, and then weld the inner warehouse wall panels to the adjacent multi-functional columns , use the connecting steel plate to weld the horizontally adjacent inner warehouse wall plate, and finally pour the same or one higher strength level waterproofing as the prefabricated inner warehouse wall plate in the cavity surrounded by the multi-functional column, the adjacent prefabricated inner warehouse wall plate and the connecting steel plate. concrete.

After the left and right adjacent horizontal prefabricated wall panels are installed, install the vertically adjacent vertical prefabricated outer wall panels: first align the prefabricated panels of the inner wall vertically and outwardly, and then weld the adjacent steel panels on the outer and inner sides with connecting steel plates. The upper and lower prefabricated slabs are finally poured in the cavity surrounded by the outer and inner connecting steel plates and adjacent prefabricated slabs with the same or a higher strength level as the prefabricated warehouse wall. After the upper and lower adjacent vertical prefabricated outer warehouse wall panels are installed, install the upper and lower adjacent vertical prefabricated inner warehouse wall panels: first align the upper and lower vertical and outer sides of the prefabricated panels of the outer warehouse wall, and then weld them on the outer and inner sides with connecting steel plates Adjacent to the upper and lower prefabricated panels, finally pour waterproof concrete of the same or higher strength level as the prefabricated warehouse wall panels in the cavity surrounded by the outer and inner connecting steel plates and adjacent prefabricated 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.

Embodiment four

As shown in Figure 1 and Figure 2: this embodiment provides a double-layer assembled underground granary. It includes a warehouse bottom 5, an outer warehouse wall 2, an inner warehouse wall 3, a warehouse roof 4 and a multifunctional column 1; the inner warehouse wall 3 and the outer warehouse wall 2 are all spliced by a plurality of prefabricated panels, and the surrounding areas of the prefabricated panels are There is a connecting device, through which the prefabricated panels can be connected with the adjacent prefabricated panels and the multifunctional column 1; the multifunctional column 1 positions the warehouse wall. The outer warehouse wall 2 and the inner warehouse wall 3 are connected as a whole with a multifunctional column 1 to form a three-dimensional space structure, which jointly bears the earth pressure, grain side pressure and buoyancy; the outer warehouse wall 2, the inner warehouse wall 3 and the multifunctional column 5 provides ventilation and water leakage inspection channels in the gap; the multi-functional column 1 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 warehouse wall panels 3, and the inner side of the second section is provided with the second Layer storehouse wallboard 3, with above-mentioned arrangement mode, until the bottom storehouse wallplate 3, forms double-deck prefabricated underground granary.

The outer surface of the warehouse wall 3 is sprayed with a protective coating, and the protective coating includes the following materials in parts by weight: 115 parts of petroleum asphalt, 7 parts of glass fiber, 8 parts of bentonite, 6 parts of emulsifier, and 1.5 parts of dispersant , 1.5 parts of stabilizer, 25 parts of organic fluorine modified styrene-acrylic emulsion, 2.5 parts of antifreeze.

The emulsifier adopts hydrogenated tallow amine, the dispersant adopts monoglyceride stearate, the stabilizer adopts sulfate, and the antifreeze agent adopts ethylene glycol.

Embodiment five

As shown in Figure 1 and Figure 2: this embodiment provides a double-layer assembled underground granary. It includes a warehouse bottom 5, an outer warehouse wall 2, an inner warehouse wall 3, a warehouse roof 4 and a multifunctional column 1; the inner warehouse wall 3 and the outer warehouse wall 2 are all spliced by a plurality of prefabricated panels, and the surrounding areas of the prefabricated panels are There is a connecting device, through which the prefabricated panels can be connected with the adjacent prefabricated panels and the multifunctional column 1; the multifunctional column 1 positions the warehouse wall. The outer warehouse wall 2 and the inner warehouse wall 3 are connected as a whole with a multifunctional column 1 to form a three-dimensional space structure, which jointly bears the earth pressure, grain side pressure and buoyancy; the outer warehouse wall 2, the inner warehouse wall 3 and the multifunctional column 5 provides ventilation and water leakage inspection channels in the gap; the multi-functional column 1 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 warehouse wall panels 3, and the inner side of the second section is provided with the second Layer storehouse wallboard 3, with above-mentioned arrangement mode, until the bottom storehouse wallplate 3, forms double-deck prefabricated underground granary.

The outer surface of the warehouse wall 5 is sprayed with a protective coating, and the protective coating includes the following materials in parts by weight: 110 parts of petroleum asphalt, 10 parts of glass fiber, 9 parts of bentonite, 7.5 parts of emulsifier, and 2 parts of dispersant , 2 parts of stabilizer, 30 parts of organic fluorine modified styrene-acrylic emulsion, 3 parts of antifreeze.

The emulsifier adopts hydrogenated tallow amine, the dispersant adopts monoglyceride stearate, the stabilizer adopts sulfate, and the antifreeze agent adopts ethylene glycol.

Embodiment six

As shown in Figure 1 and Figure 2: this embodiment provides a double-layer assembled underground granary. It includes a warehouse bottom 5, an outer warehouse wall 2, an inner warehouse wall 3, a warehouse roof 4 and a multifunctional column 1; the inner warehouse wall 3 and the outer warehouse wall 2 are all spliced by a plurality of prefabricated panels, and the surrounding areas of the prefabricated panels are There is a connecting device, through which the prefabricated panels can be connected with the adjacent prefabricated panels and the multifunctional column 1; the multifunctional column 1 positions the warehouse wall. The outer warehouse wall 2 and the inner warehouse wall 3 are connected as a whole with a multifunctional column 1 to form a three-dimensional space structure, which jointly bears the earth pressure, grain side pressure and buoyancy; the outer warehouse wall 2, the inner warehouse wall 3 and the multifunctional column 5 provides ventilation and water leakage inspection channels in the gap; the multi-functional column 1 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 warehouse wall panels 3, and the inner side of the second section is provided with the second Layer storehouse wallboard 3, with above-mentioned arrangement mode, until the bottom storehouse wallplate 3, forms double-deck prefabricated underground granary.

The outer surface of the warehouse wall 5 is sprayed with protective paint, and the protective paint includes the following materials in parts by weight: 105 parts of petroleum asphalt, 13 parts of glass fiber, 10 parts of bentonite, 9 parts of emulsifier, and 2.5 parts of dispersant , 2.5 parts of stabilizer, 35 parts of organic fluorine modified styrene-acrylic emulsion, 3.5 parts of antifreeze.

The emulsifier adopts hydrogenated tallow amine, the dispersant adopts monoglyceride stearate, the stabilizer adopts sulfate, and the antifreeze agent adopts ethylene glycol.

Embodiments 4 to 6 provide special protective coatings for the outer surface of the warehouse wall, which can protect the warehouse wall from corrosion and prevent seepage and seal the warehouse wall. It can be sprayed when the warehouse wall is prefabricated or in the Spraying when assembling the warehouse wall on site fundamentally solves technical problems such as corners, gaps, and joints with irregular structures such as leakage, and enhances the waterproof performance of the underground granary. Glass fiber is added to the protective coating, which greatly increases the toughness and tensile strength of the coating, delays the cracking time of the coating, increases its service life, and also has a certain supporting effect on the warehouse wall. The added antifreeze can reduce the damage of low temperature to the protective coating and ensure the safe operation of the underground granary in winter in cold regions.

Finally, it is noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it. Those of ordinary skill in the art may make other modifications or equivalent replacements 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 (9)

1. a kind of bilayer assembled underground granary, which includes orlop (5), outer bulkhead (2), inner barn wall (3), silo roof (4) and multiple function (1)；The inner barn wall (3) and outer bulkhead (2) is to be spliced by polylith prefabricated chunk, prefabricated board There is attachment device on block periphery, can be attached with contiguous prefabricated plate and multiple function (1) by attachment device prefabricated chunk； The multiple function (1) positions bulkhead, and the depth anchored into soil is more than orlop (5) depth, is subject to soil pressure, grain It eats pressure and resists the main bearing member of buoyancy；It is characterized in that：Multiple function is used between outer bulkhead (2) and inner barn wall (3) (1) connection is integral, forms three-dimensional space structure, shared soil pressure, grain lateral pressure and buoyancy；Outer bulkhead (2), For ventilation and leakage inspection channel in the gap that inner barn wall (3) and multiple function (1) surround；Multiple function (1) divides from top to bottom At several sections, it is equipped with first layer inner barn wall (3) plate and outer bulkhead (2) plate on the inside of the first segment of top layer, the is equipped on the inside of second segment Two layers of inner barn wall (3) plate and outer bulkhead (2) plate, with above-mentioned set-up mode, until bottom one layer of inner barn wall (3) plate and outer storehouse Wall (2) plate forms the double-deck assembled underground granary.

2. underground granary as described in claim 1, it is characterised in that：The multiple function (1) is buried using steel column or equipped with steel The concrete column of part.

3. underground granary as described in claim 1, it is characterised in that：The inner barn wall (3) or outer bulkhead (2) are inside steel plate (13) and outside concrete slab combines integral structure, inside steel plate (13) to be connect using holdfast with concrete.

4. underground granary as described in claim 1, it is characterised in that：It is spliced into the described pre- of inner barn wall (3) and outer bulkhead (2) There is U-shaped steel plate cornerite on four sides of making sheet block.

5. underground granary as claimed in claim 4, it is characterised in that：The prefabricated chunk for being spliced into outer bulkhead (2) is circumferential Horizontal outer side is concordant, and outside is directly welded to connect with multiple function (1).

6. underground granary as claimed in claim 4, it is characterised in that：It is spliced into the prefabricated chunk of outer bulkhead (2) or more Vertical outboard alignment, the outside, inside of adjacent prefabricated chunk up and down use junction steel plate (6) to weld；On the outside, inside connects steel The anti-of identical as prefabricated outer bulkhead (2) plate or high strength grade is poured in the cavity that plate (6) and contiguous prefabricated plate surround Water coagulation soil (12).

7. underground granary as claimed in claim 4, it is characterised in that：The prefabricated chunk for being spliced into inner barn wall (3) is circumferential Horizontal outer side is concordant, and outside is directly welded to connect with multiple function (1), the contiguous prefabricated plate inside junction steel plate in left and right (6) it welds, is poured and prefabricated inner barn wall in the cavity that multiple function (1), contiguous prefabricated plate and junction steel plate (6) surround (3) plate is identical or the water-proof concrete (12) of a high strength grade.

8. underground granary as claimed in claim 4, it is characterised in that：It is spliced into the prefabricated chunk of inner barn wall (3) or more Vertical outboard alignment, the outside, inside of adjacent prefabricated chunk up and down use junction steel plate (6) to weld；On the outside, inside connects steel The anti-of identical as prefabricated inner barn wall (3) plate or high strength grade is poured in the cavity that plate (6) and contiguous prefabricated plate surround Water coagulation soil (12).

9. a kind of construction method for building the underground granary described in the claims 1-8 any one, it is characterised in that：It is described Construction method includes the following steps：

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

(2) it is surrounded in multiple function (1) and excavates first layer soil in region；

(3) after excavating first layer soil, prefabricated outer bulkhead (2) plate of first layer is installed in multiple function (1) corresponding position, is then pacified The prefabricated inner barn wall of first layer (3) plate is filled, to form the double-deck prefabricated bulkhead plate of first layer.

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

(5) prefabricated outer bulkhead (2) plate of the second layer is installed in multiple function (1) corresponding position, then the prefabricated interior storehouse of the second layer is installed Wall (3) plate, to form the double-deck prefabricated bulkhead plate of the second layer；

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

(7) orlop (5) is carried out to construct；

(8) construction for finally carrying out silo roof (4) and beam, that is, complete the overall structure of underground granary.