JP2001246346A - Landfill stock equipment for waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide landfill stock equipment for waste which is capable of treating a large amount of wastes by providing the equipment with a roof and disposing a waste housing section of a wide area under the roof at a low cost. SOLUTION: Both side edges of the roof having an arch structure or Rahmen structure are connected to plural roof foundation and sand guard structure soldiers installed by embedding wide flange shapes into the soil directly or via plural roof posts and excavating the soil down to the inner side of there roof foundation and sand guard structure soldiers, by which the waste housing section is disposed. The leaching of sewage into the soil may be prevented by completely covering the flanks and bottom surface of this waste housing section with steel plate. The roof foundation and sand guard structure soldiers act as roof foundations to support the roof and also act as the sand guard structure soldiers to define the waste housing section and may also be formed to simpler construction as the force in the horizontal by the load of the roof is offset.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste landfill stock facility in which a waste container is covered with a roof.

[0002]

2. Description of the Related Art Landfill stock facilities for general and industrial wastes are often provided in remote mountainous areas or on the shore. Among such landfills, in the case of managed landfills, the aim is to promote the purification of waste by natural metabolism by rainwater, but as a result, rainwater penetrates into waste and generates wastewater. The sewage is once stored in a regulating pond, purified at a water treatment facility, and then discharged.

[0003] The above-mentioned water treatment is continued until the waste is purified and stabilized.
It is said to be between 0 and 30 years. During such long periods of time, sewage can penetrate into the ground and contaminate nearby soils or contaminate groundwater, which can have undesirable environmental consequences. In order to prevent groundwater contamination, it has been customary to install a seepage control sheet.However, if there is a problem such as poor construction of the seepage control sheet or insufficient strength, the pressure of the leachate stored in the landfill There was a problem that the impermeable sheet was torn and sewage leaked from there. In addition, even when waste is temporarily stocked, sewage measures are generally not taken. In order to solve such a problem, the present applicant has proposed that the bottom and side surfaces of the waste storage portion are completely surrounded by a steel plate.

Further, in a conventional general waste landfill stock facility, as described above, the purification of waste by natural metabolism is promoted by rainwater, so that rainwater is poured into the waste. So no roof is provided. Some landfills have roofs, but they are very small, or if you are treating waste that cannot be expected to be purified by rainwater or that would otherwise cause inconvenience when rainwater falls. In general, no roof is provided for landfill stock facilities for wastewater that uses rainwater.

[0005] As described above, since no roof is provided in a general waste landfill stock facility, for example, in a region where annual rainfall is high, the amount of leachate permeating the waste also increases, and as a result, Therefore, the capacity of the regulating pond needs to be extremely large and the water treatment equipment needs to be large. When the regulating pond is made large in this way, there is a problem that the effective use of land for disposing of the original waste is hindered. In addition, there is a problem that the cost of water treatment becomes high. In addition, to prevent leakage of wastewater from the regulating pond, water is prevented from leaking by using impermeable sheets or concrete.However, the larger the regulating pond, the more likely it is to leak water, which increases the labor and cost of management. There is a problem. Furthermore, because there is no roof,
All work, such as excavating the waste storage area and waterproofing the side and bottom surfaces of the waste storage area, is greatly affected by the weather, so construction is not proceeding as planned and completion is delayed. There is a risk that it will.

[0006]

In order to solve such a problem, the present applicant has already developed a system in which a waste landfill stock facility is provided with a roof and a sprinkler system is provided so that watering can be performed in a planned manner. are doing. The above-mentioned conventional problems can be solved or alleviated by surrounding the above-mentioned waste accommodating section with a steel plate and providing a roof and a water sprinkling facility. However, the provision of the roof reduces the area of the waste accommodating section and reduces the processing. There is a problem that the amount of waste generated is reduced.

FIG. 1 shows an example of the configuration of a waste landfill stock facility that has already been proposed by the present applicant. The side wall of the waste storage unit 1 is surrounded by a steel plate 3 supported by a soil retaining structure parent pile 2, and a steel plate 4 is also disposed on the bottom surface. These steel plates are welded so that sewage does not discharge into the soil. It is configured as follows. Further, an arched roof 5 is provided so as to cover the upper part of the waste storage unit 1, and a roof column 6 supporting the roof is connected to a roof foundation 7 driven deep into the soil. A watering facility is provided inside the roof 5, and a drainage facility is provided on the bottom surface of the waste storage unit 1. However, illustration is omitted to simplify the drawing.

[0008] Here, the weight of the roof 5 is added to the roof foundation 7, but when the roof foundation is brought close to the soil retaining structure parent pile 2, a large load is applied to the soil retaining structure parent pile, and waste is generated together with the roof foundation. There is a risk of falling into the inside of the storage unit 1.
For this reason, the roof foundation 7 needs to be provided at a sufficient distance L from the earth retaining structure parent pile 2. As a result, the width of the waste storage unit 1 becomes narrower than the width of the roof 5,
The volume of waste is reduced accordingly. For example,
When the roof 5 is projected, the width is 50 meters and the length is 12
If the roof foundation 7 is separated from the parent pile 2 by 7.5 meters when the roof foundation 7 is 7.5 meters, the waste storage unit 1
Is 30% smaller than the projected area of the roof 5, and the amount of waste that can be treated is reduced accordingly.

At present, it is very difficult to secure a final disposal site due to environmental problems. Therefore, it is strongly desired to increase the amount of waste that can be treated in one disposal site as much as possible. In addition, as described above, it is very disadvantageous that the area of the waste storage unit 1 is smaller than the projected area of the roof 5. Further, a decrease in the amount of disposable waste increases the cost of receiving waste, which is not economically favorable.

It is also conceivable that the earth retaining structure main pile 2 and the roof foundation 7 are integrally formed of reinforced concrete. However, such a reinforced concrete foundation is considerably large and wide, and the construction cost is very high. There is a problem that becomes high. The same can be said for the waste yard.

An object of the present invention is to solve the various problems of the above-mentioned conventional waste landfill stock equipment, and to integrate a roof foundation with a soil retaining structure parent pile for defining a side wall of a waste storage unit and a roof foundation. It is an object of the present invention to provide a waste landfill stock facility capable of securing a waste storage portion substantially equal to the projected area of the waste.

[0012]

SUMMARY OF THE INVENTION A waste landfill stock facility according to the present invention includes a plurality of roof pillars that cover a waste container and support a roof having a rigid frame or arch structure, and serve as a roof foundation. It also serves as a soil retaining structure parent pile that defines the inner wall of the waste storage unit, and the lower part is connected to a roof foundation / earth retaining structure parent pile buried in the soil.

According to such a waste landfill stock facility of the present invention, the support pillars connected to the roof covering the waste storage section include the roof foundation supporting the roof, and the inner wall of the waste storage section. The roof foundation / retaining structure parent pile is connected to the roof foundation / retaining structure parent pile that functions as the retaining structure parent pile. Because the roof foundation and earth retaining structure parent pile balances the force of falling into the waste storage section,
Roof foundation and earth retaining structure The collapse of the roof foundation and earth retaining parent pile can be effectively prevented without driving the parent pile deep into the soil. Therefore, the area of the waste storage unit is substantially equal to the projected area of the roof, and the amount of waste that can be treated can be significantly increased as compared with the conventional case.

In one embodiment of the waste landfill stock facility according to the present invention, both side edges of the roof are directly connected to the roof foundation / retaining structure parent pile. In this case, the configuration of the connection portion between the roof and the roof foundation / retaining structure parent pile can be made very simple, and the construction becomes easy and inexpensive.

In another embodiment of the waste landfill stock facility according to the present invention, both side edges of the roof are connected to the upper ends of a plurality of roof columns, and the lower ends of the roof columns are connected to the roof foundation and earth retaining structure. Connect to stake. In the case of such a configuration, it is advantageous when the roof is moved relative to the roof foundation / retaining structure main pile by making the connection between the roof pillar and the roof foundation / retaining structure main pile detachable. . In other words, when moving, after attaching a temporary support mounted on a moving mechanism such as a chill tank to the roof pillar, disconnect the roof pillar and the roof foundation / earth retaining structure parent pile, and move the chill tank along the rail The roof can be easily moved by moving the roof to a predetermined position, connecting the roof pillar to the new roof foundation / retaining structure main pile, and then removing the temporary support pillar.

[0016]

FIG. 2 shows a basic configuration of a waste landfill stock facility according to the present invention. In the present invention, both sides of the arched roof 11 are connected so as to be supported by the roof foundation / retaining structure main pile 12 built on the ground level GL. The upper part of the roof foundation / earth retaining structure parent pile 12 projects upward from the ground level GL, and the lower part is buried in the soil. Roof foundation / earth retaining structure The soil surrounded by the parent pile 12 is excavated to form a waste container 13. When actually constructing such a waste landfill stock facility, first, the roof foundation / retaining structure parent pile 12 is driven in, then the roof 11 is laid, and the ground below the roof is excavated. Then, a waste container 13 is provided.

In the present embodiment, the side walls and the bottom surface of the waste container 13 provided below the roof 11 laid as described above are completely surrounded by the steel plates 14 and 15, respectively.
Weld the steel plate to prevent drainage. It is preferable that the plate thickness of these steel plates 14 and 15 is about 10 mm, and that the front and back surfaces are subjected to corrosion prevention processing. In the landfill stock facility for waste, natural purification is performed by infiltrating water into the waste, but the period until the waste is completely purified and stabilized requires an extremely long time of 20 to 30 years. . By using the steel plates 14 and 15 as described above, leakage of sewage can be effectively prevented during such a long stabilization period.

As shown in FIG. 2, according to the present invention, the roof foundation / retaining structure parent pile 1 which functions as a roof foundation for supporting the roof 11 and also functions as a retaining structure parent pile.
2, it is not necessary to open the space between the retaining pile and the roof foundation as in the conventional waste landfill stock facility shown in FIG. It is possible to realize the waste accommodating section 13 having the same.

In the present invention, the earth pressure applied to the roof foundation / retaining structure parent pile 12 and the horizontal force acting on the roof foundation / retaining structure parent pile due to the load of the roof 11 cancel out. Easy construction of the roof foundation / retaining structure parent pile 12 by driving ordinary H-shaped steel into the soil without using the conventional wide reinforced concrete retaining pile as the retaining structure parent pile 12 Can be. In this case, the waste storage unit 1 of the roof foundation / retaining structure parent pile 12
Since the length of the lower end portion buried in the soil after excavation of 3 does not need to be too long, the depth of the waste storage unit can be increased accordingly, and the area of the waste storage unit can be increased accordingly. The amount of waste that can be disposed can be further increased in combination with the fact that the size can be increased.

FIGS. 3 to 8 show a detailed configuration of one embodiment of the waste landfill stock facility according to the present invention shown in FIG. FIG. 3 is a plan view of the roof 11 with a substantially half cut away, and FIG. 4 is a side view. The projected width of the roof 11 having the arch structure is 50 meters, and the length is 75 meters. The roof foundation / retaining structure parent pile 12 is driven in 31 pieces on each side at intervals of 2.5 meters along the side edge of the roof. This roof foundation and earth retaining structure parent pile 1
2 is made of H-section steel, its length is 14.5 meters, the length below the ground level GL is 11.5 meters, and the length above the ground level GL Is 3 meters long. In addition, since the depth of the waste container 13 is 5 meters, 6.5 meters is embedded in the soil.

FIG. 5 shows a roof foundation that supports the roof 11 and acts as a parent pile for the retaining structure of the waste storage unit 13.
It is a perspective view which shows the detailed structure of the earth retaining structure parent pile 12.
The roof foundation / earth retaining structure parent piles 12 are formed of H-shaped steel, and are arranged at predetermined intervals. These roof foundations
The earth retaining structure main pile 12 is connected to each other by a plurality of connecting members 21, and an end of the main structure 22 of the roof 11 is connected to the connecting member. In addition, a horizontal sheet pile 23 is provided between adjacent roof foundation and earth retaining structure parent piles 12. Further, a steel plate 14 is attached to the inside by welding. A plurality of steel plates 15 are laid on the bottom of the waste storage unit 13, and these steel plates are also welded.

FIG. 6 shows an example of a detailed structure of the roof 12. The roof 12 of this example is configured by connecting a number of roof units 31 each extending in the width direction in the length direction. The purlin members 32 of the sequential roof units 31 are connected by joints 33. In addition, each purlin unit 31
, A folded plate 34 is fixed, and the edge of the folded plate is bent so as to ride on a tight frame 35 fixed to the purlin material. Further, the space between the adjacent folded plates 34 is covered with a joint cover 36.

Since the roof 11 is not of a completely sealed type, air is blown into the inside. However, since the roof may be blown by strong wind, in this example, as shown in FIGS. A counterweight 41 made of a concrete block is provided below the steel plate 15 at the bottom, and a plurality of wire ropes pass between a shackle 43 fixed by anchor bolts 42 embedded in the counterweight and the main structure 22 of the roof 11. Connect at 44. Further, a turnbuckle 45 is provided on these wire ropes 44 so that the wire ropes 44 can be loosened so that connection and detachment with the shackle 43 can be performed freely.
Such counterweights 41 are provided at intervals of 7.5 meters when viewed in the length direction of the roof 11.

As shown in FIG. 9, the same effect can be obtained even if the counterweight 41 is mounted directly below the main structure 22 of the roof 11. In this case, there is an advantage that a work space unaffected by the wire rope 44 can be sufficiently secured.

Further, when the rise of the arch roof 11 shown in FIG. 9 is reduced, there is an effect of increasing the horizontal force acting on the main pile 12 of the roof foundation / retaining structure. For example, if the arch rise is changed from 7.5 meters to 5 meters, the horizontal force can be increased from 7.4t to 9.5t. Therefore, a rational structure can be manufactured by a combination of the adjustment of the counterweight 41 and the arch rise.

FIG. 10 is a plan view diagrammatically showing the overall configuration of another example of the waste landfill stock facility according to the present invention. The entire waste storage section 13 of the landfill stock facility is divided into a plurality of sections 13-1 to 13-3, and the roof 11 is moved so as to cover these sections one after another. In the state shown in FIG. 10, the roof 12 covers the first waste storage section 13-1 and waste is stored in this section. When the section 13-1 is full of waste, the roof 11 is moved above the next waste storage section 13-2 after the surface is covered with soil or covered with a cover or the like. is there.

As shown in FIG. 11, the roof 11 of this embodiment has a rigid frame structure, and the side edge of the roof 11 is connected to the upper end of a roof column 51, and the lower end of the roof column is a roof foundation / retaining structure. It is connected to the upper end of the parent pile 12. Also in this example, the roof foundation / earth retaining structure parent piles 12 are provided at predetermined intervals along the outer periphery of the waste storage unit 13.

Next, the storage of the waste in the waste storage section 13-1 is completed, and the roof 11 is moved to the next waste storage section 13
-2 will be described. At this time, the waste is buried in the waste storage section 13-1 covered by the roof 11, and soil covering or the like is applied thereon. First,
As shown in FIG. 12, the guide rails 5 extend along the extension of the arrangement of the roof foundation / retaining structure parent piles 12 on both sides of the roof 11.
Lay 2 and 53. In FIG. 12, these guide rails 52 and 53 extend to the tip of the next section 13-2, but may extend further.

In this embodiment, the moving mechanism can be simplified and the moving operation can be simplified by moving the roof 11 in several parts instead of moving the entire roof 11 at once. As shown in FIG. 13, the roof columns 51 are connected with tie members 54, and the roof columns 5 are connected as described later.
The roof pillars are prevented from being deformed outward when the roof pile and the earth retaining structure main pile 12 are separated from each other. This Thai material 5
It is not necessary to provide 4 between all the roof foundation / retaining structure main piles 12, and for example, one tie material may be provided for the roof portion that moves at one time.

As shown in FIG. 13 and FIG.
The lower end of 1 and the upper end of the roof foundation / retaining structure parent pile 12 are connected by a connecting plate 55. At a position above the connecting plate 55, a temporary support 56 is fixed to the outer side surface of the roof column 51 with an overhang 57 and bolts. A chill tank 58 is attached to the lower end of the temporary support 56, and the chill tank rides on the guide rail 53. Further, the roof pillars 51 are connected to each other by the transverse connection members 59. The guide rails 52 and 53 are respectively on the pedestal 60, but are on the jack 61 at the position where the roof column 51 is provided.

Next, as shown in FIG. 15, one end of each of the chill holes 62-1 to 62-4 is connected to the roof pillar 51, and the other end is connected to the main pile 12 of the roof foundation / retaining structure. Chill hole 62
Numerals -1 and 62-2 are for drawing, and the fixed end side is connected to the roof foundation / retaining structure main pile 12 at the tip of the waste storage section 13-3. In addition, chill hole 62
-3 and 62-4 are for diapers, and their fixed ends are connected to the roof foundation / retaining structure main pile 12 at the rear end of the waste storage section 13-1.

The above is the preparation stage for moving the roof.
Next, the jack 61 is operated to operate the guide rails 52, 53.
Is slightly raised, and the loads of the roof 11 and the roof pillar 51 are reduced to the provisional support 56, the chill tank 58, and the guide rails 52, 53.
And the pedestal 60 to receive it. After transferring the load of the part of the roof 11 and the roof column 51 connected thereto to temporary moving facilities such as guide rails in this way, the connecting plate 55 is removed, and the roof column 51 and the roof foundation / retaining structure parent pile Disconnect the connection with 12. And chill hole 62
While operating -1 to 62-4, a part of the roof 11 and the roof column 51 connected thereto are
3 and set to a position covering the waste storage section 13-2.

After the movement of the first part of the roof 11 is completed, the operation reverse to the above-mentioned operation is performed to transfer the roof pillar 51 connected to this part of the roof to a new roof foundation / retaining structure parent pile 12. connect. That is, first, the jack 61 is operated to slightly lower the first portion of the roof 11 and the roof pillar 51 connected thereto, and the lower end of the roof pillar is brought into contact with the upper end of the roof foundation / retaining structure main pile 12. The load on the roof and roof columns is transferred to the roof foundation and earth retaining structure parent pile. In this state, the roof pillar 51 and the roof foundation / retaining structure main pile 12 are rigidly connected to each other by the bolts and nuts via the connecting plate 55. Next, the temporary strut 56 and the transverse joint 59 are removed from the roof pillar 51, and the tie material 54 is removed from the roof pillar 51.

Next, the detached temporary strut 56 and the connecting member 59 are connected to the roof pillar 51 connected to the second portion of the roof 11.
After the second part of the roof 11 is moved to be adjacent to the first part that has already been moved by performing the same operation as described above, the roof pillar 5 of the second part is
1 is a new roof foundation and earth retaining structure with connecting plate 55
And the first part and the second part. As shown in FIG.
And the joint cover 36 can be easily used.

If the construction accuracy of the roof foundation / retaining structure parent pile 12 cannot be ensured, as shown in FIG.
The error between the roof pillar 51 and the roof foundation / retaining structure parent pile 12 is shown.
It can be absorbed by the concrete foundation slab or the concrete foundation beam 63 constructed on the parent pile head. A base plate 64 is attached to the bottom surface of the roof column 51 by welding, and the base plate 64 is fastened with anchor bolts 65. Then, when moving the roof, the anchor bolts may be removed and the roof may be moved to the next place.

When the above operation is repeated and the movement of all parts of the roof 11 is completed, the guide rails 52 and 53, the pedestal 60, the jack 61 and the like are removed. Although the movement of the roof is completed in this manner, temporary moving equipment such as the guide rails 52 and 53, the pedestal 60, the jack 61, the temporary support 56, and the chill tank 58 may be used only when moving the roof. It can be used in common in a plurality of waste landfill stock facilities, and the cost can be reduced accordingly. In addition, since the roof pillar 51 is rigidly connected to the roof foundation / retaining structure parent pile 12 except during the movement of the roof, there is no danger that an undesired situation such as movement or overturning occurs. It is safe.

The present invention is not limited to the above-described embodiment, but can be variously modified and modified. For example, in the above-described embodiment, the periphery of the waste accommodating portion is completely surrounded by the steel plate, but may be surrounded by another material. In addition, although the main pile of the roof foundation / retaining structure is made of H-shaped steel, it can be made of another steel material. Further, in the above-described embodiment, the roof is moved, but such movement is not always necessary, and the roof can be fixed.

[Brief description of the drawings]

FIG. 1 is a diagrammatic cross-sectional view showing the structure of a waste landfill stock facility already proposed by the present inventors.

FIG. 2 is a schematic sectional view showing a basic structure of a waste landfill stock facility according to the present invention.

FIG. 3 is a schematic plan view showing a detailed configuration of an embodiment of a waste final disposal facility according to the present invention.

FIG. 4 is a schematic sectional view of the same.

FIG. 5 is a perspective view showing a detailed configuration of a roof and a parent pile of a roof foundation / retaining structure.

FIG. 6 is a perspective view showing a detailed configuration of a roof.

FIG. 7 is a schematic cross-sectional view showing a configuration in which a roof is prevented from being lifted by a wire rope.

FIG. 8 is a cross-sectional view illustrating a configuration of an anchor that holds a wire rope.

FIG. 9 is a schematic cross-sectional view showing a configuration in which the roof is prevented from being lifted by a counterweight suspended under the roof.

FIG. 10 is a diagrammatic plan view showing a situation in which a waste storage unit is divided into a plurality of sections.

FIG. 11 is a schematic sectional view showing a waste landfill stock facility of the present invention having a roof having a ramen structure.

FIG. 12 is a schematic plan view showing an operation when the roof is moved to an adjacent section.

FIG. 13 is a schematic front view showing a moving mechanism for moving the roof.

FIG. 14 is a diagrammatic side view of the same.

FIG. 15 is a schematic plan view showing an arrangement of chill holes for moving a roof.

FIG. 16 is a side view showing an arrangement in a case where the parent pile and the roof pillar are joined via a concrete slab or a concrete foundation beam.

[Explanation of symbols]

11 Roof, 12 Roof foundation / retaining structure parent pile, 1
3 Waste storage unit, 14, 15 steel plate, 21 connecting member, 22 main structure of roof, 23 horizontal sheet pile, 31 roof unit, 32 purlin material, 33 joint, 34
Folded plate, 35 tight frame, 36 joint cover, 41 counterweight, 42 anchor bolt, 43 shackle, 44 wire rope, 4
5 Turnbuckle, 51 Roof pillar, 52, 53
Guide rail, 54 Thai material, 55 Connecting plate, 5
6 Temporary columns, 57 overhangs, 58 chill tanks, 59 transoms, 60 pedestals, 61 jacks, 62 chill holes, 63 concrete slabs or concrete foundation beams, 64 base plates,
65 anchor bolt

Claims (5)

[Claims] 1. A roof covering a waste storage part, and both side edges of a roof having a ramen structure or an arch structure serve as a roof foundation and also serve as a soil retaining structure parent pile defining an inner wall of the waste storage part. A waste landfill stock facility, which is connected to a plurality of roof foundation and earth retaining structure parent piles arranged on both sides of a waste storage part and buried in the bottom. 2. A steel plate for defining a side wall of a waste storage unit is laid inside the roof foundation / retaining structure parent pile, and a steel plate is also laid on the bottom surface of the waste storage unit. 2. A landfill stock facility for waste according to 1. 3. The roof pile / retaining structure main pile having both side edges of the roof directly connected to each other.
Landfill stock equipment for waste as described in. 4. The method according to claim 2, wherein both side edges of the roof are connected to upper ends of a plurality of roof pillars, and lower ends of the roof pillars are connected to the roof foundation / retaining structure parent pile. Landfill stock equipment for waste. 5. The roof pillar and the roof foundation / retaining structure main pile are detachably connected to each other, and the roof is configured to be movable with respect to the roof foundation / retaining structure main pile. A waste landfill stock facility according to claim 4.