Waste bin foundation pit

Abstract

The present invention discloses a foundation pit for a garbage storage bin, comprising: a foundation pit body, which has a waterproof bottom of the bin and an annular bin wall surrounding and arranged on the waterproof bottom of the bin; a filtrate layer plate, which is in a shape of a quasi-inverted frustum, the filtrate layer plate is arranged inside the foundation pit body, the filtrate layer plate divides the foundation pit body into an upper and a lower part, namely a garbage accommodation cavity and a leachate cavity, and a plurality of filter holes are provided on the filtrate layer plate; a suction assembly, which has a water pipe communicated to the inside of the leachate cavity and a pump body providing suction power. The present invention has the advantages that the leachate can be separated from the garbage before incineration, thereby reducing the humidity of the garbage and reducing the adverse effects on the incineration drying section.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage storage pits. More specifically, the present invention relates to a foundation pit for a garbage storage bin. Background Art

[0002] There are various substances in municipal solid waste, and some of the waste even contains harmful substances. Therefore, when dealing with it, these harmful and non-combustible wastes need to be picked out. The remaining recyclable waste is weighed and then put into the garbage storage pool after that. A common garbage storage pool can generally store nearly one week's worth of garbage for processing. For the garbage in the storage pool, it is necessary to stir and crush it, and also collect the garbage leachate generated during the process. Only after the garbage has been processed in the previous step can it be sent into the incinerator by machinery and equipment for incineration to generate heat and electricity. Before incineration, municipal solid waste is first stored in the foundation pit of the garbage storage bin. The garbage placed in the foundation pit of the garbage storage bin will generate garbage leachate after fermentation. This liquid emits a rather stinky smell and contains a relatively high amount of ammonia nitrogen and heavy metals. The garbage leachate can account for 1 / 10 of the weight of the garbage. These leachates can only be discharged after sewage treatment, otherwise it will cause environmental pollution. The existing foundation pit structure of the garbage storage bin is simple. For example, there is an existing foundation pit of a garbage storage bin with a total size of 80m × 30m × 30m (height), where the depth underground is -8.000m (i.e., the depth of the storage pit structure). The storage pit structure is a cast-in-place reinforced concrete pool structure, including a foundation pit, a concrete side wall, a concrete bottom slab, structural pile foundations, retaining cast-in-place piles, and a water-stop curtain. Among them, the water-stop curtain is a cement mixing column water-stop curtain, which is arranged outside the retaining cast-in-place piles. The retaining cast-in-place piles are arranged around the foundation pit, and part of them is above the bottom surface of the foundation pit and part of them is below the bottom surface of the foundation pit. The concrete side wall and the concrete bottom slab are arranged in the foundation pit, jointly forming a pool structure with an upper opening. There is backfill soil filled between the concrete side wall and the retaining cast-in-place piles. The upper part of the concrete side wall is used to support the factory building frame columns. The concrete bottom slab is supported by the structural pile foundations and is poured along the bottom surface of the foundation pit. Building waterproof layers are provided on both the inner and outer sides of the concrete side wall and the concrete bottom slab, which can not only prevent the storage pit structure from being damaged when the garbage transfer hopper grabs the garbage, but also prevent the leakage of garbage leachate. Although the garbage leachate of the foundation pit of the garbage storage bin with the above structure will not leak outwards and avoid environmental pollution, it has been left in the foundation pit of the garbage storage bin mixed with the garbage for a long time without separation, making the humidity and temperature of the garbage more suitable for the growth of bacteria, leading to a vicious cycle. Moreover, during the process of transporting the garbage to the incinerator, since the garbage leachate is mixed with the garbage, a part of it will also be carried out, causing the leachate to leak. And when the garbage is in a relatively humid state before incineration, the energy consumption in the drying section at the front stage of the incineration section will increase significantly, and even affect the calorific value of the incineration section. Therefore, it is necessary to design a foundation pit for a garbage storage bin that can separate the leachate from the garbage before incineration, so as to overcome the above defects. Summary of the Invention

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0004] In order to achieve these purposes and other advantages according to the present invention, there is provided a garbage bin foundation pit, comprising:

[0005] A foundation pit body, comprising a waterproof bottom and an annular wall surrounding the waterproof bottom;

[0006] The filtrate layer plate is in the shape of an inverted truncated cone and is arranged in the foundation pit body. The filtrate layer plate divides the foundation pit body into a garbage receiving chamber and a leachate chamber in the upper and lower parts. The filtrate layer plate is provided with a plurality of filter holes.

[0007] The suction component comprises a water pipe connected to the leachate cavity and a pump body for providing suction power.

[0008] Preferably, the filtrate layer plate includes a circular layer plate located at the central axis of the foundation pit body and a plurality of fan-shaped layer plates detachably fixed on the circular layer plate, and the plurality of fan-shaped layer plates are spliced to form a ring shape.

[0009] Preferably, a first manhole is provided at the center of the filtrate layer plate, and a first manhole cover is provided on the first manhole;

[0010] The manway pipe is a reinforced concrete structure. The top of the manway pipe is integrally cast with the bottom of the filtrate layer plate. The manway pipe is connected to the first manway hole. The bottom of the manway pipe is detachably fixed to the bottom of the waterproof bin bottom. A second manway hole connected to the leachate cavity is provided on the side wall of the manway pipe. A second manhole cover is provided on the inner side of the manway pipe. A plurality of foot pedals are pre-embedded on the inner wall of the manway pipe along the axial interval.

[0011] Preferably,

[0012] The circular layer plate is integrally formed with an annular connecting layer plate, and the connecting layer plate is inclined radially outward and upward, and the inclination angle of the connecting layer plate is consistent with that of the fan-shaped layer plate. The connecting layer plate is provided with a plurality of first connecting holes that pass through the upper and lower parts, and the upper ends of the first connecting holes are expanded radially outward to form an annular first receiving platform;

[0013] A plurality of second connecting holes extending vertically through the fan-shaped layer plate is provided on one side of the fan-shaped layer plate close to the circular layer plate, a steel connecting piece is pre-embedded on the second connecting hole, the steel connecting piece extends vertically through the second layer plate, a support ring is provided at the lower end of the steel connecting piece, the support ring abuts against the first receiving platform, an annular connecting plate is provided at the upper end of the steel connecting piece, and a plurality of first locking holes with threads are provided on the annular connecting plate;

[0014] The support column is a reinforced concrete structure, the lower end of the support column is detachably fixed to the bottom of the waterproof bin bottom, the support column is coaxially arranged with the first connecting hole, the upper end of the support column is passed through the first connecting hole and the steel connecting piece, the top of the support column is provided with a locking groove, and the waterproof bin bottom is an arc-shaped surface with an opening facing upward;

[0015] The cover plate has a locking protrusion at its bottom, and a plurality of second locking holes with threads are provided on the circumferential edge of the cover plate. The locking protrusion abuts against the locking groove, and the second locking hole is fixed to the first locking hole by a bolt thread connection.

[0016] Preferably, the support column is provided with an annular second receiving platform, and a plurality of first limiting grooves are spaced apart on the upper surface of the second receiving platform;

[0017] A plurality of adjustment blocks, wherein the lower ends of the adjustment blocks extend into the first limiting groove and the upper ends abut against the bottom of the connecting layer plate.

[0018] Preferably, a second limiting groove is provided on the side wall of the support column, and an L-shaped positioning rod is provided at the bottom of the fan-shaped shelf. The positioning rod includes a vertical rod fixed on the fan-shaped shelf and a horizontal rod located below it. The horizontal rod extends into the second limiting groove, and an adjusting steel pipe with a thread is pre-embedded on the horizontal rod along its axial direction, and an adjusting screw is threaded on the adjusting steel pipe.

[0019] Preferably, a plurality of connecting legs are provided at intervals on the bottom of the side of the sector-shaped layer away from the circular layer, and a first flange is pre-embedded on the side wall of the sector-shaped layer away from the circular layer;

[0020] Multiple connecting corbels are pre-embedded on the annular warehouse wall at intervals, multiple third limiting grooves are opened on the top of the connecting corbels, and a second flange is provided on the connecting corbels, wherein the connecting legs extend into the third limiting grooves, and the second flange is fixed to the first flange by multiple bolts.

[0021] Preferably, the side walls on both sides of the fan-shaped layer plate are respectively provided with an upper overlapping strip and a lower overlapping strip, and the upper overlapping strip of the fan-shaped layer plate is overlapped on the lower overlapping strip of the adjacent fan-shaped layer plate.

[0022] Preferably, the fan-shaped layer plate is provided with a plurality of mounting holes which pass through from top to bottom, the upper end of the mounting hole is radially expanded to form an annular mounting platform, a plurality of mounting steel pipes with threads are embedded and fixed on the mounting platform, a filter plate is provided on the mounting platform cover, the filter hole is provided on the filter plate, a plurality of mounting threaded holes are provided on the edge of the filter plate, and the mounting threaded holes are fixed to the steel pipes by bolts.

[0023] Preferably, an arc-shaped waterproof groove is formed on the upper surface of the sector-shaped laminate near the circular laminate, and the waterproof grooves on multiple sector-shaped laminates form a ring shape;

[0024] A waterproof cover layer, the bottom of which is provided with a ring-shaped waterproof protrusion, and the waterproof protrusion is hermetically clamped in the waterproof groove.

[0025] The present invention has at least the following beneficial effects:

[0026] First, by providing a filtrate laminate and a suction assembly, the separation of leachate from garbage can be realized, avoiding outward leakage, preventing environmental pollution, reducing the humidity of the garbage, facilitating the drying of the drying section when the garbage is transported to the incinerator, reducing the energy consumption of the drying section, and increasing the calorific value of the incineration section. The cost required for transforming the existing garbage bin foundation pit is also relatively low.

[0027] Second, by prefabricating circular laminates and sector-shaped laminates and installing them in a splicing manner, the weight of the prefabricated parts (circular laminates and sector-shaped laminates) can be significantly reduced, making transportation, hoisting, and installation easier, and also facilitating the control of installation accuracy.

[0028] Third, overall, the lower support columns enclose to form a frustum-shaped support structure, and the upper circular laminate and sector-shaped laminates form an inverted frustum-shaped distributed downward pressure structure. The two cooperate to form a stable support and supported form, and both are detachable connection methods, eliminating the need for on-site casting and having high construction efficiency.

[0029] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a longitudinal sectional structure schematic diagram of the garbage bin foundation pit of one technical solution of the present invention;

[0031] Figure 2 It is a top view of the garbage bin foundation pit of one technical solution of the present invention;

[0032] Figure 3 It is a connection schematic diagram of the connecting laminate, the support column, and the sector-shaped laminate of one technical solution of the present invention;

[0033] Figure 4 It is a connection schematic diagram of the sector-shaped laminate and the annular bin wall of one technical solution of the present invention;

[0034] Figure 5 It is a detailed view of the positioning rod of one technical solution of the present invention;

[0035] Figure 6 Splicing schematic diagram of the sector-shaped layer of one of the technical solutions of the present invention;

[0036] Figure 7 Detail drawing of the filter plate of one of the technical solutions of the present invention;

[0037] Figure 8 Detail drawing of the waterproof cover layer of one of the technical solutions of the present invention. Specific embodiments

[0038] The following further elaborates on the present invention with reference to the accompanying drawings, so that those skilled in the art can implement it according to the description in the specification.

[0039] It should be noted that, unless otherwise specified, the experimental methods in the following embodiments are all conventional methods, and the reagents and materials, unless otherwise specified, can all be obtained through commercial channels; in the description of the present invention, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0040] As Figures 1 to 8 shown, the following are the interpretations of the reference numerals in the drawings of the present invention: foundation pit body 100, waterproof bin bottom 11, annular bin wall 12, garbage accommodation cavity 13, leachate cavity 14, connecting bracket 15, second flange 16, third limiting groove 17, filtrate layer plate 200, circular layer plate 300, first manhole cover 31, human access pipe 32, sector-shaped layer plate 400, annular connecting plate 41, steel connecting piece 42, support ring 43, positioning rod 45, adjusting screw 46, connecting support foot 47, first flange 48, upper overlapping strip 49, lower overlapping strip 40, installation platform 401, filter plate 402, waterproof groove 403, connecting layer plate 500, first receiving platform 51, support column 600, locking protrusion 61, cover plate 62, fourth flange 63, second receiving platform 64, second limiting groove 65, adjusting block 66, waterproof cover layer 700, waterproof protrusion 71.

[0041] As Figures 1 to 8 shown, the present invention provides a garbage bin foundation pit, including:

[0042] Foundation pit body 100, which has a waterproof bin bottom 11 and an annular bin wall 12 surrounding and arranged on the waterproof bin bottom 11; specifically, the foundation pit body 100 is divided into two parts, above and below the ground. The diameter of the foundation pile below the waterproof bin bottom 11 is larger than that of the upper part, which is beneficial to improving the anti-settlement performance. The diameter of the bottom of the waterproof bin bottom 11 is larger than the diameter of the annular bin wall 12, which is also beneficial to improving the anti-settlement performance and enhancing the anti-leakage performance.

[0043] The filtrate layer plate 200, which is in the shape of a truncated cone, is arranged in the foundation pit body 100. The filtrate layer plate 200 divides the foundation pit body 100 into an upper and a lower part, namely a garbage accommodation cavity 13 and a leachate cavity 14. A plurality of filter holes are provided on the filtrate layer plate 200. Garbage is stacked in the garbage accommodation cavity 13. During the waiting process for incineration, the garbage will inevitably ferment. The leachate generated by fermentation can enter the leachate cavity 14 from the filter holes due to gravity, so that the garbage and the garbage leachate are separated, and the garbage is in a relatively dry state.

[0044] A suction assembly (not shown in the figure), which has a water pipe connected to the leachate cavity 14 and a pump body providing suction power. When the leachate in the leachate cavity 14 accumulates to a certain amount, the suction assembly can be started to pump out and discharged into the sewage treatment system. The garbage leachate contains a large amount of ammonia nitrogen and heavy metals, and the garbage leachate can account for 1 / 10 or more of the weight of the garbage. It needs to be treated by the sewage treatment system before being discharged, otherwise it will cause environmental pollution. Through the setting of the suction assembly, the leachate in the leachate cavity 14 can be kept at a lower water level and prevented from entering the garbage accommodation cavity 13. The suction assembly is composed of a commonly used water pipe and a water pump connected. The water pipe can be laid and fixed along the annular bin wall 12, and the water pump is arranged outside the annular bin wall 12, which is beneficial to heat dissipation.

[0045] In the above technical solution, the foundation pit body 100 can adopt an existing built garbage bin foundation pit. Only by adding a filtrate layer plate 200 and a suction assembly on the basis of the original garbage bin foundation pit, the separation of the garbage leachate can be realized, leakage to the outside can be avoided, environmental pollution can be avoided, the humidity of the garbage can be reduced, which is beneficial to the drying of the drying section when the garbage is transported to the incinerator, the energy consumption of the drying section can be reduced, and the calorific value of the incineration section can be increased. The cost required for the transformation of the existing garbage bin foundation pit is also less.

[0046] In another technical solution, the filtrate layer plate 200 includes a circular layer plate 300 located at the central axis of the foundation pit body 100 and a plurality of sector-like layer plates 400 detachably fixed on the circular layer plate 300. The plurality of sector-like layer plates 400 are spliced to form a ring. Since the size of the garbage bin foundation pit is generally large, if the filtrate layer plate 200 is integrally formed and then installed as a whole, it is difficult to achieve in the prior art and difficult to control. If it is cast on site, it will take a long time and the construction period will be long, affecting the construction efficiency. Therefore, by prefabricating the circular layer plate 300 and the sector-like layer plates 400 and installing them in a splicing manner, the weight of the prefabricated parts (the circular layer plate 300 and the sector-like layer plates 400) can be significantly reduced, which is easy to transport, hoist and install, and is also convenient to control the installation accuracy

[0047] In another technical solution, a first manhole is provided at the center of the filtrate layer plate 200, and a first manhole cover 31 is provided on the first manhole;

[0048] The manway pipe 32 is a reinforced concrete structure. The top of the manway pipe 32 is integrally cast with the bottom of the filtrate layer plate 200. The manway pipe 32 is connected to the first manhole. The bottom of the manway pipe 32 is detachably fixed to the bottom of the waterproof bin bottom 11. A second manhole connected to the leachate chamber 14 is provided on the side wall of the manway pipe 32. A second manhole cover is provided on the inner side of the second manhole located on the inner side of the manhole pipe 32. A plurality of foot pedals are pre-embedded on the inner wall of the manway pipe 32 along the axial interval. The foot pedals are used to provide a stepping place for construction workers and maintenance personnel.

[0049] In the above technical solution, the filtrate layer plate 200 is supported and fixed by the manway 32, and the manway 32 has the function of allowing construction personnel and maintenance personnel to enter the leachate chamber 14 through the manway 32 for installation and maintenance.

[0050] In another technical solution,

[0051] The circular layer plate 300 is integrally formed with an annular connecting layer plate 500, and the connecting layer plate 500 is tilted radially outward and upward. The inclination angle of the connecting layer plate 500 is consistent with that of the fan-shaped layer plate 400, which helps to fit the connecting layer plate 500 and the fan-shaped layer plate 400 together. The connecting layer plate 500 is provided with a plurality of first connecting holes that pass through the upper and lower parts, and the upper ends of the first connecting holes are radially expanded outward to form an annular first receiving platform 51;

[0052] The fan-shaped layer plate 400 is provided with a plurality of second connecting holes that pass through the upper and lower parts on one side close to the circular layer plate 300. A steel connecting member 42 is pre-embedded in the second connecting hole. The steel connecting member 42 passes through the upper and lower parts. A support ring 43 is provided at the lower end of the steel connecting member 42. The support ring 43 abuts against the first receiving platform 51. An annular connecting plate 41 is provided at the upper end of the steel connecting member 42. A plurality of first locking holes with threads are provided on the annular connecting plate 41. The axial cross-section of the steel connecting member 42 is in the shape of a "sub" character, including an annular connecting plate 41, a support ring 43, and an intermediate cylinder connecting the annular connecting plate 41 and the support ring 43.

[0053] The waterproof bin bottom 11 is curved with an upward-facing opening. Casting the waterproof bin bottom 11 into a curved concrete reinforced structure allows the multiple support columns 600 described below to form a truncated cone-shaped support configuration, enhancing the support stability of the spliced structure. Specifically, the waterproof bin bottom 11 is pre-embedded with multiple third flanges. A plurality of fourth retaining grooves are defined on the waterproof bin bottom 11 corresponding to the third flanges. The lower ends of the support columns 600 extend into the fourth retaining grooves. The support columns 600 are provided with fourth flanges 63, which are secured to the third flanges via multiple bolts. This provides a removable connection between the support columns 600 and the waterproof bin bottom 11.

[0054] A support column 600 is a reinforced concrete structure. The lower end of the support column 600 is detachably fixed to the bottom of the waterproof chamber bottom 11. The support column 600 is coaxially arranged with the first connection hole. The upper end of the support column 600 is passed through the first connection hole and the steel connector 42. A locking groove is formed at the top of the support column 600.

[0055] The cover plate 62 has a locking protrusion 61 at its bottom, and a plurality of second locking holes with threads are provided on the circumferential edge of the cover plate 62. The locking protrusion 61 abuts against the locking groove to preliminarily position the cover plate 62 and the support column 600. The second locking hole is fixed to the first locking hole through a bolt thread connection to realize a detachable connection and fixation between the cover plate 62, the support column 600 and the fan-shaped layer plate 400.

[0056] In the above technical solution, by setting a connecting layer plate 500, the connection between the circular layer plate 300 and the fan-shaped layer plate 400 is realized, and at the same time, the support and fixation with the support column 600 are realized. From the overall point of view, the lower support column 600 is arranged to form a truncated cone support structure, and the upper circular layer plate 300 and the fan-shaped layer plate 400 form an inverted truncated cone dispersed downward pressure structure. The two cooperate to form a stable supporting and supported form, and both are detachable connection methods, do not require on-site casting, and have high construction efficiency.

[0057] In another technical solution, the support column 600 is provided with an annular second receiving platform 64, and a plurality of first limiting grooves are spaced apart on the upper surface of the second receiving platform 64; the second receiving platform 64 can provide an upward force for supporting the connection layer.

[0058] A plurality of adjustment blocks 66 are provided, wherein the lower ends of the adjustment blocks 66 extend into the first limiting grooves and the upper ends thereof abut against the bottom of the connection layer plate 500 .

[0059] In the above technical solution, when there is a deviation in the inclination angle between the prefabricated part, i.e., the prefabricated connecting layer plate 500 and the second receiving platform 64, adjustment blocks 66 of different lengths can be inserted so that the connecting layer plate 500 can stably transmit force to the second receiving platform 64, i.e., transmit force to the support column 600, so that the support column 600 can provide good support for the connecting layer plate 500.

[0060] In another technical solution, a second limiting groove 65 is provided on the side wall of the support column 600, and an L-shaped positioning rod 45 is provided at the bottom of the fan-shaped shelf 400. The positioning rod 45 includes a vertical rod fixed on the fan-shaped shelf 400 and a horizontal rod located below it. The horizontal rod extends into the second limiting groove 65, and a threaded adjustment steel pipe is pre-embedded on the horizontal rod along its axial direction, and an adjustment screw 46 is threaded on the adjustment steel pipe.

[0061] In the above technical solution, when hoisting and installing the fan-shaped shelf 400, the crossbar can be adjusted to be inserted into the second limiting groove 65, which plays a preliminary positioning role and also enables the support column 600 to provide lateral support to the fan-shaped shelf 400, thus achieving two goals at one stroke. If the prefabricated fan-shaped shelf 400 has deviations in radial dimensions, the screw 46 can be adjusted to move toward the second limiting groove 65 and abut against the second limiting groove 65, thereby achieving reliable support and overcoming dimensional defects.

[0062] In another technical solution, a plurality of connecting legs 47 are provided at intervals on the bottom of the side of the fan-shaped layer plate 400 away from the circular layer plate 300, and a first flange 48 is pre-embedded on the side wall of the fan-shaped layer plate 400 away from the circular layer plate 300;

[0063] Multiple connecting corbels 15 are pre-embedded at intervals on the annular warehouse wall 12, and multiple third limiting grooves 17 are opened on the top of the connecting corbel 15. A second flange 16 is provided on the connecting corbel 15, wherein the connecting support leg 47 extends into the third limiting groove 17, and the second flange 16 is fixed to the first flange 48 by multiple bolts.

[0064] In the above technical solution, by setting the connecting corbel 15, the support force on the other side of the fan-shaped layer plate 400 can be provided. By setting the third limiting groove 17, preliminary limiting can be performed to prevent the fan-shaped layer plate 400 from deviating and moving, thereby improving assembly safety.

[0065] In another technical solution, upper overlapping strips 49 and lower overlapping strips 40 are respectively provided on both side walls of the fan-shaped layer panel 400. The upper overlapping strips 49 of the fan-shaped layer panel 400 overlap the lower overlapping strips 40 of the adjacent fan-shaped layer panel 400. Multiple fan-shaped layer panels 400 are sequentially installed and spliced in a clockwise direction. The upper overlapping strips 49 and the lower overlapping strips 40 can be stably spliced. When all the splicing is completed, a stable splicing structure with mutual restraint can be formed.

[0066] In another technical solution, the fan-shaped layer plate 400 is provided with multiple mounting holes extending vertically through it. The upper ends of these mounting holes are radially expanded to form an annular mounting platform 401. Multiple threaded mounting steel pipes are pre-embedded and fixed to this mounting platform 401. A filter plate 402 is mounted on top of this mounting platform 401. This filter plate 402 is provided with the filter holes. Multiple threaded mounting holes are provided on the edge of this filter plate 402. These threaded mounting holes are connected to the steel pipes via bolts. Because the waste composition is relatively complex and highly corrosive to the filter plate 402, it is designed to facilitate disassembly and replacement of the filter plate 402, thereby providing reliable filtration.

[0067] In another technical solution, an arc-shaped waterproof groove 403 is opened on the upper surface of the fan-shaped layer plate 400 on the side close to the circular layer plate 300, and the waterproof grooves 403 on the plurality of fan-shaped layer plates 400 form a ring;

[0068] The waterproof cover layer 700 has an annular waterproof protrusion 71 at its bottom, and the waterproof protrusion 71 is sealed and clamped in the waterproof groove 403.

[0069] In the above technical solution, in order to prevent leachate from corroding and contaminating the first manhole cover 31 and the manhole pipe 32, a waterproof cover layer 700 is provided to prevent leachate from entering the circular layer plate 300 and the connecting layer plate 500. The waterproof cover layer 700 is preferably made of rubber material, which has certain flexibility and elasticity and can better adapt to the surface shape of the circular layer plate 300 and the connecting layer plate 500.

[0070] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. The garbage storage pit foundation, characterized in that, include: A foundation pit body, comprising a waterproof bottom and an annular wall surrounding the waterproof bottom; The filtrate layer plate is in the shape of an inverted truncated cone and is arranged in the foundation pit body. The filtrate layer plate divides the foundation pit body into a garbage receiving chamber and a leachate chamber in the upper and lower parts. The filtrate layer plate is provided with a plurality of filter holes. a suction assembly having a water pipe connected to the leachate chamber and a pump body for providing suction power; The filtrate layer plate includes a circular layer plate located at the central axis of the foundation pit body and a plurality of fan-shaped layer plates detachably fixed on the circular layer plate, wherein the plurality of fan-shaped layer plates are spliced to form a ring; A first manhole is provided at the center of the filtrate layer plate, and a first manhole cover is provided on the first manhole; The manway pipe is a reinforced concrete structure. The top of the manway pipe is integrally cast with the bottom of the filtrate layer plate. The manway pipe is connected to the first manway hole. The bottom of the manway pipe is detachably fixed to the bottom of the waterproof bin bottom. A second manway hole connected to the leachate cavity is provided on the side wall of the manway pipe. A second manhole cover is provided on the inner side of the manway pipe. A plurality of foot pedals are pre-embedded on the inner wall of the manway pipe along the axial interval.

2. The garbage bin foundation pit according to claim 1, characterized in that: The circular layer plate is integrally formed with an annular connecting layer plate, and the connecting layer plate is inclined radially outward and upward, and the inclination angle of the connecting layer plate is consistent with that of the fan-shaped layer plate. The connecting layer plate is provided with a plurality of first connecting holes that pass through the upper and lower parts, and the upper ends of the first connecting holes are expanded radially outward to form an annular first receiving platform; A plurality of second connecting holes extending vertically through the fan-shaped layer plate is provided on one side of the fan-shaped layer plate close to the circular layer plate, a steel connecting piece is pre-embedded on the second connecting hole, the steel connecting piece extends vertically through the second layer plate, a support ring is provided at the lower end of the steel connecting piece, the support ring abuts against the first receiving platform, an annular connecting plate is provided at the upper end of the steel connecting piece, and a plurality of first locking holes with threads are provided on the annular connecting plate; The support column is a reinforced concrete structure, the lower end of the support column is detachably fixed to the bottom of the waterproof bin bottom, the support column is coaxially arranged with the first connecting hole, the upper end of the support column is passed through the first connecting hole and the steel connecting piece, the top of the support column is provided with a locking groove, and the waterproof bin bottom is an arc-shaped surface with an opening facing upward; The cover plate has a locking protrusion at its bottom, and a plurality of second locking holes with threads are provided on the circumferential edge of the cover plate. The locking protrusion abuts against the locking groove, and the second locking hole is fixed to the first locking hole by a bolt thread connection.

3. The waste bunker foundation pit according to claim 2, characterized in that, The support column is provided with an annular second receiving platform, and a plurality of first limiting grooves are spaced apart on the upper surface of the second receiving platform; A plurality of adjustment blocks, wherein the lower ends of the adjustment blocks extend into the first limiting groove and the upper ends abut against the bottom of the connecting layer plate.

4. The garbage bin foundation pit according to claim 2, wherein A second limiting groove is formed in the side wall of the support column. A positioning rod in the shape of an L is provided at the bottom of the sector-shaped laminate. The positioning rod includes a vertical rod fixed to the sector-shaped laminate and a horizontal rod located below it. The horizontal rod extends into the second limiting groove, and an adjusting steel pipe with threads is embedded along the axial direction of the horizontal rod. An adjusting screw is screwed onto the adjusting steel pipe.

5. The garbage storage pit foundation according to claim 2, wherein A plurality of connecting support feet are arranged at intervals at the bottom of the side of the sector-shaped laminate away from the circular laminate. A first flange is embedded on the side wall of the sector-shaped laminate away from the circular laminate. A plurality of connecting brackets are embedded in the annular bin wall at intervals. A plurality of third limiting grooves are formed at the top of the connecting brackets. A second flange is provided on the connecting brackets. Among them, the connecting support feet extend into the third limiting grooves, and the second flange and the first flange are fixedly connected by a plurality of bolts.

6. The waste bunker foundation pit according to claim 1, characterized in that, Upper lapping strips and lower lapping strips are respectively arranged on the side walls on both sides of the sector-shaped laminate. The upper lapping strip of the sector-shaped laminate lapped on the lower lapping strip of the adjacent sector-shaped laminate.

7. The garbage bin foundation pit according to claim 1, characterized in that, A plurality of mounting holes penetrating up and down are formed in the sector-shaped laminate. The upper end of the mounting hole is expanded in diameter along the radial direction to form an annular mounting platform. A plurality of threaded mounting steel pipes are embedded and fixed on the mounting platform. A filter plate is covered on the mounting platform. Filter holes are provided on the filter plate. A plurality of mounting threaded holes are provided on the edge of the filter plate. The mounting threaded holes and the steel pipes are fixedly connected by bolts.

8. The garbage bin foundation pit according to claim 1, characterized in that, An arc-shaped waterproof groove is formed on the upper surface of the side of the sector-shaped laminate close to the circular laminate. The waterproof grooves on a plurality of sector-shaped laminates form an annular shape. A waterproof cover layer, the bottom of which is provided with an annular waterproof protrusion, and the waterproof protrusion is hermetically clamped in the waterproof groove.

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