JP2013081919A - Disposing facility with roof and method of constructing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposing facility with a roof and a method of constructing the same which shorten a work period in construction, enable drilling work or the like while avoiding rainwater at a rainfall time, and also prevent water leakage in a landfill.SOLUTION: In this landfill facility 1 with the roof, a plurality of pile column structures 5 are erected in a buried area 2. The pile column structure 5 includes a cast-in-place pile 11, and a precast pile 12 is erected above the cast-in-place pile 11. In constructing the landfill facility 1 with the roof, at first the cast-in-place piles 11 are constructed, then, the precast piles 12 are erected while proceeding drilling of the buried area 2. Further, after the precast piles 12 are erected, the covering roof 3 is constructed and the drilling of the buried area 2 is proceeded.

Description

  The present invention relates to a roofed treatment facility and a construction method thereof.

  2. Description of the Related Art Conventionally, as a waste treatment facility, a covered treatment facility provided with a roof is known in order to prevent the waste from being exposed to an environment such as rainfall. As this type of processing facility with a roof, there is conventionally a covered-type waste final processing facility that covers a landfill with a covering means extending above the landfill (see, for example, Patent Document 1). In this covered-type waste final treatment facility, a landfill for filling waste is excavated and a roof covering the landfill is constructed.

JP 2004-261721 A

  By the way, there is a demand for a large processing facility as this type of covered processing facility. However, in the covered-type waste final treatment facility disclosed in Patent Document 1 described above, the side portions of the roof are only supported by concrete pillars or the like, and thus are not sufficient to support the roof in a large-scale treatment facility. In this regard, for example, it is conceivable that a pillar for supporting the roof is erected in the landfill. However, even if a column is erected in the landfill, there is a problem that if the column is erected after excavating the landfill, the construction period will be extended for a long time. Moreover, since the treatment facility with a roof is constructed outdoors, there has been a problem that in the case of rainfall, the landfill area must be excavated while receiving rainwater.

  Furthermore, when a pillar is erected in the landfill, the pillar penetrates the water shielding layer at the bottom of the landfill. When the pillar penetrates the water shielding layer, there is a problem that the position where the pillar penetrates may be a weak point that easily causes water leakage. In addition, since the treatment facility with a roof is constructed outdoors, in the event of rainfall, it may hinder excavation of the landfill area and installation of water shielding sheets, etc. was there.

  Therefore, the problem of the present invention is to shorten the work period when constructing, to perform excavation work while avoiding rainwater during rain, and to prevent leakage of landfills. It is to provide a covered treatment facility and a method for constructing the same.

  The processing facility with a roof according to the present invention that has solved the above problems is a processing facility with a roof in which a landfill area is formed in which waste is buried by excavating the ground, and a roof that covers the landfill area is provided. A plurality of cast-in-place piles are formed at predetermined intervals in the region, a precast pile is erected vertically above the cast-in-place pile, and the roof is supported using the precast pile as a column.

  In the treatment facility with a roof according to the present invention, when a pillar supporting the roof is erected, a precast pile is erected vertically above a plurality of cast-in-place piles created at predetermined intervals in the landfill area. Precast piles are used as pillars. For this reason, after a cast-in-place pile is created in the landfill area, the precast pile can be erected and the roof can be constructed simultaneously with the excavation of the landfill area. Therefore, it is possible to shorten the construction period when constructing the covered treatment facility. In addition, after the roof is constructed, the landfill area being excavated is covered with the roof. For this reason, when it rains, excavation work can be performed while avoiding rainwater by the constructed roof.

  Here, the precast pile can be made of concrete.

  Considering the corrosion of the steel frame due to salt in the waste, by making the precast piles made of concrete, it will be suitable for long-term use.

  Moreover, the exposed part from the ground in a cast-in-place pile can be made to be covered with the water-impervious sheet. Therefore, it is possible to suitably prevent water leakage in the landfill.

  Thus, since the exposed part from the ground in the cast-in-place pile is covered with the water-impervious sheet, it is possible to suppress the outflow of moisture generated from waste or the like buried in the landfill area to the soil.

  Furthermore, the boundary part with the ground in the exposed part from the ground in the cast-in-place pile is covered with the existing water-impervious member, and the existing water-impervious member is a flange part protruding sideways from the cylindrical part. The hat shape provided with can be configured by combining divided preformed water-impervious members that are cut along the height direction of the cylindrical portion and divided into a plurality of parts.

  In this way, the existing water-impervious member that covers the boundary with the ground in the exposed part from the ground in the cast-in-place pile is cut along the height direction of the tubular part and divided into a plurality of divided pre-insulated water-impervious members By combining them, the outflow of moisture to the soil can be more suitably suppressed.

  Moreover, the exposed part from the ground in a cast-in-place pile can also be used as a part of pillar.

  Thus, when the cast-in-place pile is exposed from the ground, the exposed portion can be used as a part of the pillar.

  In addition, the construction method of the roofed treatment facility according to the present invention that has solved the above problems is a method of constructing a roofed treatment facility that excavates the ground to form a landfill area in which waste is reclaimed and covers the landfill area with a roof. Then, cast-in-place piles are created at predetermined intervals on the ground that will be the landfill area, precast piles are erected vertically above the cast-in-place piles, and the roof covering the landfill area is formed using the precast piles as columns. It is characterized by excavating around cast-in-place piles to form a landfill area.

  In the construction method of the covered treatment facility according to the present invention, after the cast-in-place pile is created, the precast pile is erected above the cast-in-place pile, thereby shortening the work period when constructing the covered treatment facility. be able to. In addition, after the roof is constructed, the landfill area being excavated is covered with the roof. For this reason, excavation work can be performed while avoiding rainwater and the like by the constructed roof.

  In addition, after the primary excavation to excavate the ground that will be the landfill area to a predetermined depth, the cast-in-place pile is created, and after the cast-in-place pile is completed, the position deeper than the predetermined depth of the ground that will be the landfill area is excavated Secondary drilling can be done.

  Furthermore, after the primary excavation is performed and the precast pile is erected on the cast-in-place pile, the roof is constructed, and the secondary excavation can be performed from the area where the construction of the roof is completed.

  Thus, by constructing a roof and performing secondary excavation after constructing the roof, excavation work can be performed while avoiding rainwater and the like by the constructed roof during rainfall.

  Moreover, when performing a secondary excavation, the exposed part in a cast-in-place pile can be covered with a water-impervious sheet.

  In this way, when performing secondary excavation, the exposed portion of the cast-in-place pile is covered with a water-impervious sheet, so that the impermeable sheet is cast into the cast-in-place pile in accordance with the progress of excavation around the cast-in-place pile. Can be wound.

  Furthermore, when performing the secondary excavation, the exposed cast-in-place pile can be covered with a water-impervious sheet every time the cast-out pile is exposed to a predetermined length.

  Thus, during secondary excavation, every time the length of the cast-in-place pile is exposed, the exposed cast-in-place pile is covered with the water-impervious sheet. When wrapping around a pile, it is not necessary to provide a separate scaffold.

  And after secondary excavation is completed, the boundary part of the exposed part and the ground from a ground in a cast-in-place pile can be covered with an existing impermeable member together with the ground.

  In this way, after the secondary excavation is completed, by covering the boundary portion between the exposed portion of the ground in the cast-in-place pile and the ground with the existing water-impervious member, smoothly covering the existing impermeable member Further, it is possible to increase the water shielding between the ground of the landfill area.

  According to the treatment facility with a roof and the construction method thereof according to the present invention, it is possible to shorten the work period when constructing and to perform excavation work and the like while avoiding rainwater and the like during rainfall. Furthermore, it is possible to prevent water leakage in the landfill.

It is a sectional side view of the processing facility with a roof which concerns on embodiment of this invention. It is a plane sectional view of a processing facility with a roof concerning an embodiment of the present invention. It is a perspective view inside the processing facility with a roof concerning the embodiment of the present invention. It is a sectional side view of a pillar pile structure. (A) is a sectional side view of the upper impermeable structure, and (b) is a perspective view of a molded impermeable sheet. (A) is a sectional side view of a lower water-impervious structure, and (b) is a perspective view of a molded water-impervious sheet. It is process drawing which shows the construction process of a processing facility with a roof. FIG. 8 is a process diagram illustrating a process following the process in FIG. 7. It is process drawing which shows the process following FIG.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In each embodiment, portions having the same function are denoted by the same reference numerals, and redundant description may be omitted.

  1 is a side sectional view of a treatment facility with a roof according to an embodiment of the present invention, FIG. 2 is a plan sectional view thereof, and FIG. 3 is a perspective view of the inside thereof. As shown in FIGS. 1 to 3, in the landfill disposal facility 1 with a roof according to the present embodiment, a landfill area 2 in which waste is landfilled is formed, and the landfill area 2 is covered with a covered roof 3. Yes. The covered roof 3 includes a plurality of truss beams arranged side by side, and is formed by providing a roof member on the surface of the truss beams, and is supported by the building frame foundation 4 and at a predetermined interval in the landfill area 2. It is supported by a plurality of pile pillar structures 5 erected.

  A drainage groove 6 is formed on the bottom surface 2 </ b> A in the landfill region 2. As shown in FIG. 2, the drainage grooves 6 are formed vertically and horizontally on the bottom surface 2 </ b> A of the landfill disposal facility 1 with a roof. Around the landfill disposal facility 1 with a roof, a road for a carry-in vehicle to travel is constructed, and a single slope is provided, and a gutter (trough) is provided on the lower side.

  Further, a water shielding sheet 7 is laid on the bottom surface 2 </ b> A and the slope 2 </ b> B in the landfill region 2. The water shielding sheet 7 prevents water from entering the ground below the landfill area 2. The drainage groove 6 is formed on the water shielding sheet 7. Furthermore, the embankment 8 is constructed on the bottom surface 2 </ b> A in the landfill region 2 along the direction orthogonal to the drainage groove 6.

  In addition, as shown in FIG. 2, in the landfill area 2, a vehicle rotation square 2 </ b> C in which the incoming vehicle changes direction is formed. Furthermore, the landfill area 2 is formed with a landfill road 2D that connects the vehicle rotation plaza 2C and the outside of the landfill area 2 and allows vehicles such as trucks to travel.

  As shown in FIG. 4, the pile column structure 5 includes a cast-in-place pile 11 and a precast pile 12. The cast-in-place pile 11 is constructed by a so-called all casing method (Benot method). The precast pile 12 is made of PC concrete. The diameter of the precast pile 12 is smaller than the diameter of the cast-in-place pile 11. As the precast pile 12, a steel pipe pile or the like can be used in addition to a PC concrete pile.

  Further, the precast pile 12 is erected vertically above the cast-in-place pile 11 and also has a function as a pillar that supports the covered roof 3. A column (not shown) is attached to the head of the precast pile 12. The column includes a plurality of steel joints, and these steel joints are arranged in various different directions. By joining the truss beam of the covered roof 3 to the steel frame joint in the column, the covered roof 3 can be easily joined to the precast pile 12.

  Further, the anchor member 13 and the reinforcing bar member 14 shown in FIG. 4 are embedded in the cast-in-place pile 11 so as to protrude from the upper end surface of the cast-in-place pile 11 at the time of creation. On the other hand, a flange 12 </ b> A is formed at the lower end of the precast pile 12.

  An insertion hole through which the anchor member 13 can be inserted is formed in the flange 12A. Furthermore, a height adjustment protrusion 15 is provided at the center position of the upper end surface of the cast-in-place pile 11. The precast pile 12 is adjusted so that the anchor member 13 is inserted into the insertion hole formed in the flange 12 </ b> A and then placed on the height adjustment protrusion 15 so as to be erected vertically. Further, the nut 16 is fastened to the anchor member 13, and the flange 12 </ b> A is fixed to the anchor member 13. Thus, the precast pile 12 is erected on the cast-in-place pile 11. Further, a root-wrapped concrete 17 is placed at the lower end of the precast pile 12.

  Further, an upper water-impervious structure 20 is formed at the joint between the precast pile 12 and the root-wrapped concrete 17, and a lower water-impervious structure 30 is formed at the boundary between the cast-in-place pile 11 and the bottom surface 2 </ b> A of the landfill region 2. Is formed. Further, a water shielding sheet structure 40 is stretched between the upper water shielding structure 20 and the lower water shielding structure 30.

  The upper water-impervious structure 20 includes a first molded water-impervious sheet 21 and a second molded impermeable sheet 22, as shown in FIG. The first molded water-impervious sheet 21 is a molded product, and has a hat shape including a tubular portion and a flange portion protruding laterally from the tubular portion. Here, the primary excavation surface S1, which is the excavation surface when the primary excavation is completed, is shown. Further, at the time of molding, this hat shape is cut along the height direction of the cylindrical portion and divided into a plurality of four parts, and as shown in FIG. 21A to 21D. These first molded water-impervious divided sheets 21 </ b> A to 21 </ b> D have the same shape as each other, and a hat shape is formed by combining them in the circumferential direction. In addition, the division | segmentation number of 1st shaping | molding water-impervious sheet | seat 21A-21D can be suitably determined from a viewpoint of work efficiency, such as the magnitude | size which a worker can have, and may not be divided | segmented with a circular shape.

  Moreover, the 2nd shaping | molding impermeable sheet 22 is a molded product similarly to the 1st shaping | molding impermeable sheet 21, and has comprised the hat shape with which it is equipped. Further, at the time of molding, the hat shape is divided into four, and as shown in FIG. 5B, four second molded water-impervious divided sheets 22A to 22D are formed. These 2nd shaping | molding water-impervious division | segmentation sheet | seats 22A-22D are mutually making the same shape, and a hat shape is formed by arranging and arranging these in the circumferential direction.

  The inner surface of the cylindrical part of the first molded water-impervious sheet 21 is fixed and impermeable to the outer surface of the precast pile 12 by a caulking 23 and a double-sided butyl tape 24. Further, the upper surface of the flange portion of the first molded water-impervious sheet 21 and the lower surface of the flange portion of the second molded impermeable sheet 22 are fixed to each other by extrusion welding 26.

  On the other hand, the lower water-impervious structure 30 has a double sheet structure. As shown in FIG. 6A, the three protective mats 31A to 31C, the two sheets 32A and 32B, and the two molded water-impervious structures. As the water sheet, a first molded impermeable sheet 33 and a second molded impermeable sheet 34 are provided. The 1st shaping | molding impermeable sheet 33 and the 2nd shaping | molding impermeable sheet 34 comprise the preformed impermeable member of this invention.

  Of these, the first molded water-impervious sheet 33 and the second molded water-impervious sheet 34 have the same shape, both of which are molded products, and the tubular portion and the flange portion protruding sideways from the tubular portion. Has a hat shape. Further, at the time of molding, this hat shape is cut along the height direction of the cylindrical portion and divided into four parts, and as shown in FIG. 6B, four first molded water-impervious divided sheets 33A. To 33D (34A to 34D). The first molded water-impervious divided sheets 33A to 33D (34A to 34D) constitute the divided preformed water-impervious members of the present invention.

  In the lower water-impervious structure 30, the bottom surface protection mat 31 </ b> A is directly placed on the bottom surface of the landfill area 2, and the lower layer sheet 32 </ b> A is laid thereon. Further, an intermediate protection mat 31B is laid above the lower layer sheet 32A, and an upper layer sheet 32B is laid above the intermediate protection mat 31B. A surface protection mat 31C is laid above the surface protection mat 31C. The surface protection mat 31 </ b> C extends upward along the extending direction of the cast-in-place pile 11.

  Further, a collar portion of the first molded water-impervious sheet 33 is disposed between the lower layer sheet 32A and the intermediate protective mat 31B, and the second molded water-impervious sheet 34 is disposed between the upper layer sheet 32B and the surface protective mat 31C. A collar is provided. In the lower water-impervious structure 30, the inner sheet 35 </ b> A and the outer sheet 35 </ b> B are disposed along the extending direction of the cast-in-place pile 11.

  Between the lower layer sheet 32A and the intermediate protective mat 31B, the flange portion of the first molded water shielding sheet 33 is welded by automatic welding 36A. Further, between the upper layer sheet 32B and the surface protection mat 31C, the flange portion of the second molded water-impervious sheet 34 is welded by automatic welding 36B.

  Further, between the inner sheet 35A and the cylindrical portion of the second molded water-impervious sheet 34, the cylindrical portion of the first molded impermeable sheet 33 is welded by extrusion welding 37A. Moreover, the cylindrical part in the 2nd shaping | molding impermeable sheet 34 is welded by the surface of the outer side sheet 35B, and the extrusion welding 37B. The lower water-impervious structure 30 including these molded water-impervious sheets 33 and 34 covers the boundary between the cast-in-place pile 11 and the ground.

  Further, the thickness of the bottom surface protection mat 31A and the surface protection mat 31C is 10 mm, respectively, and the thickness of the intermediate protection mat 31B is 20 mm. The thickness of the lower layer sheet 32A and the upper layer sheet is 1.5 mm. Furthermore, the thickness of the molded water-impervious sheets 34 and 35 is 2.0 mm.

  The water shielding sheet structure 40 includes a water shielding sheet 41. The water-impervious sheet 41 is provided extending from the upper end portion of the cast-in-place pile 11 to the lower end portion. The upper end portion of the water shielding sheet 41 is welded to the cylindrical portion of the second molded water shielding sheet 22 in the upper water shielding structure 20 by extrusion welding 42. The lower end portion of the water shielding sheet 41 is welded to the inner sheet 35 </ b> A in the lower water shielding structure 30 by automatic welding 43 and is welded to the outer sheet 35 </ b> B by extrusion welding 44. Thus, the exposed portion of the cast-in-place pile 11 is covered with the water shielding sheet 41.

  Furthermore, the bottom surface protection mat 31A in the lower water-impervious structure 30 extends to the upper water-impervious structure 20, and the upper end portion thereof is fixed to the upper end portion of the cast-in-place pile 11 with an adhesive. And the surface protection mat 31C in the lower water-impervious structure 30 also extends to the upper water-impervious structure 20, and is welded to the cylindrical portion of the second molded water-impervious sheet 22 in the upper water-impervious structure 20 by a torch.

  Next, the construction procedure of the landfill disposal facility 1 with a roof according to the present embodiment will be described. FIG. 7 is a process diagram showing a process of constructing a treatment facility with a roof, and FIG. 8 is a process chart showing a process following FIG. The covered landfill disposal facility 1 shown in FIG. 1 is formed on the ground N as shown in FIG. In Fig.7 (a), the position of the depth used as the bottom face 2A of the landfill area | region 2 in a processing facility with a roof is shown with the broken line.

  From this state, as shown in FIG. 7B, primary excavation is performed, and excavation is performed to a depth approximately half of the range in which the landfill region 2 is formed. When the landfill area is shallow, primary excavation is not performed. When the landfill area is deep, it is disadvantageous in terms of cost and process to create a cast-in-place pile from the ground. Therefore, the depth of primary excavation is set so that the cost and process are optimized.

  After the primary excavation, as shown in FIG. 7C, the crane C is placed on the primary excavation surface S1, and the cast-in-place pile 11 is created. At this time, the cast-in-place pile 11 is constructed so that the depth of the cast-in-place pile 11 is deeper than the landfill region 2. Further, the cast-in-place piles are sequentially created on the primary excavation surface S1.

  When the cast-in-place pile 11 is completed, the precast pile 12 is erected with respect to the created cast-in-place pile 11 as shown in FIG. . When standing the precast pile 12, as shown in FIG. 4, the flange 12 </ b> A in the precast pile 12 is fixed to the anchor member 13, and the root-wrapped concrete 17 is placed on the upper surface of the cast-in-place pile 11.

  When the precast pile 12 is erected, the building roof foundation 4 is formed as shown in FIG. 8 (b), and the covered roof 3 is constructed using the precast pile 12 as a column. By constructing the covered roof 3 at this stage, the subsequent work in the landfill area 2 can be performed under the covered roof 3. Therefore, even when there is rain or the like, the work can be performed while removing rainwater. In addition, it includes snowfall in addition to rainfall.

  Subsequently, the upper water-impervious structure 20 is formed at the connection portion between the cast-in-place pile 11 and the precast pile 12. When forming the upper water-impervious structure 20, after the root-wrapped concrete 17 shown in FIG. 5 is solidified, the first molded water-impervious sheet 21 is attached to the upper end of the root-wrapped concrete 17, and then the second molded water-blocking structure 20. A water sheet 22 is attached.

  Here, the first molded water-impervious sheet 21 can easily form a hat shape by combining four first molded water-impervious divided sheets 21 </ b> A to 21 </ b> D molded in advance. By assembling the hat shape, the first molded water-impervious sheet 21 can be easily attached around the precast pile 12. Similarly, since the second molded water-impervious sheet 22 can be easily formed into a hat shape by combining four second molded water-impervious divided sheets 22 </ b> A to 22 </ b> D that have been molded in advance, around the precast pile 12. Easy to install. Then, the first molded water-impervious sheet 21 is fixed to the precast pile 12 by caulking 23 or double-sided tape 24, and the second molded water-impervious sheet 22 is extrusion welded to the first molded impermeable sheet 21.

  Then, the water shielding sheet structure 40 is formed. When forming the water-impervious sheet structure 40, the second molded water-impervious sheet 22 in the upper water-impervious structure 20 is welded to the upper end portion of the water-impervious sheet 41, and thereafter the water-impervious sheet is sequentially formed around the cast-in-place pile 11. 41 is wound around and the water shielding sheet structure 40 is provided.

  Then, as shown in FIG.8 (c), the ground is dug down by reverse winding and secondary excavation is performed, and the landfill area | region 2 is dug forward. At this time, the water-impervious sheet 41 is provided to extend downward as the secondary excavation progresses. When the water shielding sheet 41 is to be attached around the cast-in-place pile 11 after the secondary excavation is completed, it is necessary to assemble a scaffold or the like on the excavation surface and attach the water shielding sheet 41. In this regard, by providing the water shielding sheet 41 in accordance with the progress of the secondary excavation, it is not necessary to separately assemble a scaffold or the like when the water shielding sheet 41 is provided.

  Thus, the secondary excavation and the formation of the water-impervious sheet structure 40 are advanced, and the secondary excavation is completed and the landfill region 2 is dug to a predetermined depth position as shown in FIG. At this stage, the water-impervious sheet 41 is wound to a position that substantially covers the side surface of the cast-in-place pile 11. At this time, a water shielding treatment is applied to the slope 2B in the landfill area 2 as needed.

  As the water shielding treatment for the slope 2B, mortar is sprayed directly on the slope 2B, and a bottom surface protection mat is laid on the mortar. Further, a water shielding sheet is laid on the upper layer, and a surface protection mat is laid on the upper layer. In this way, the water shielding treatment is performed on the slope 2B.

  Then, as shown in FIG. 9B, the lower water-impervious structure 30 is formed in the lower part of the cast-in-place pile 11. When forming the lower water-impervious structure 30, the waterproof treatment structure B is constructed in parallel on the bottom surface 2 </ b> A of the landfill region 2. At this time, as the waterproof treatment structure B, the bottom face protection mat 31A is laid on the bottom of the cast-in-place pile 11 and the bottom face 2A of the landfill area 2.

  Next, the lower layer sheet 32A is laid on the upper layer of the bottom surface protection mat 31A. Subsequently, the first molded water shielding sheet 33 is provided on the lower layer sheet 32A. The first molded water-impervious sheet 33 can be easily formed into a hat shape by combining the four first molded water-impervious divided sheets 33 </ b> A to 33 </ b> D that have been molded in advance. Can be attached.

  Further, the intermediate protective mat 31B is laid on the upper surface of the bottom protective mat 31A with the collar portion of the first molded water shielding sheet 33 interposed therebetween. Then, the upper layer sheet 32B is laid on the upper layer of the intermediate protective mat 31B, and the second molded water shielding sheet 34 is provided on the upper layer sheet 32B. The second molded water-impervious sheet 34 can be easily formed into a hat shape by combining four second molded water-impervious divided sheets 34 </ b> A to 34 </ b> D that have been molded in advance. Can be attached.

  Then, the surface protection mat 31C is laid on the upper layer of the intermediate protection mat 31B with the collar portion of the second molded water-impervious sheet 34 interposed therebetween. In this way, the bottom surface protection mat 31A, the lower layer sheet 32A, the intermediate protection mat 31B, the upper layer sheet 32B, and the surface protection mat 31C are stacked in this order from the bottom side on the bottom surface 2A of the landfill area 2. Cover the surface with about 500 mm of soil. Thus, the lower water-impervious structure 30 and the bottom surface 2A of the landfill area 2 are formed, and the landfill disposal facility 1 with a roof is constructed.

  As described above, the landfill disposal facility 1 with a roof according to the present embodiment has a plurality of cast-in-place piles 11 formed at predetermined intervals in the landfill region 2 when the pillars supporting the covered roof 3 are erected. A precast pile 12 is erected vertically upward, and this precast pile 12 is used as a column. For this reason, since operations such as secondary excavation and installation of a water-impervious sheet can be performed without being influenced by the weather, the process is shortened. Moreover, after the covering roof 3 is constructed, the landfill area 2 being excavated is covered with the covering roof 3. For this reason, since it is possible to perform excavation and installation work such as a water shielding sheet while avoiding rainwater and the like by the constructed covered roof 3 during rainfall, the quality is secured and improved. The installation work such as the water shielding sheet includes the work such as the collection and drainage pipe installation.

  In addition, considering the corrosion of the steel frame due to salt in the waste, by using a concrete pile as the precast pile 12, it is possible to reduce the corrosion in the landfill area 2 and to that extent, it is suitable for long-term use. It becomes. Furthermore, since the exposed part from the ground in the cast-in-place pile 11 is the water-impervious sheet 41, it is possible to prevent outflow of moisture generated from wastes and the like buried in the landfill region 2 to the soil. Moreover, the boundary part with the ground in the exposed part from the ground in the cast-in-place pile 11 is covered with the lower water-impervious structure 30 including the molded water-impervious sheets 33 and 34. For this reason, the outflow of the water | moisture content with respect to soil can be prevented further suitably.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, in the above embodiment, the cast-in-place pile 11 is formed after the primary excavation, and then the secondary excavation is performed. On the other hand, a cast-in-place pile can be created without performing primary excavation, and then the landfill region 2 can be excavated.

  Moreover, in the said embodiment, the water-impervious sheet | seat 41 may be formed with one sheet, and may be formed by connecting several sheets. When joining multiple sheets, it is possible to perform the joining work without providing a scaffold or the like by joining the next sheet to the existing sheet after reaching a certain depth as the secondary excavation progresses. it can.

DESCRIPTION OF SYMBOLS 1 ... Landfill processing land facility 2 with a roof ... Landfill area 2A ... Bottom 2B ... Slope 2C ... Vehicle rotation square 2D ... Road in reclaimed land 3 ... Covered roof 4 ... Building foundation 5 ... Pile pillar structure 6 ... Drainage channel 7 ... Drainage Water sheet 8 ... Embankment 11 ... Cast-in-place pile 12 ... Precast pile 12A ... Flange 13 ... Anchor member 14 ... Reinforcement member 15 ... Height adjustment protrusion 16 ... Nut 17 ... Neck winding concrete 20 ... Upper water-impervious structure 21 ... First molding Water shielding sheet 21A-21D ... 1st shaping | molding water shielding division sheet 22 ... 2nd shaping | molding water shielding sheet 22A-22D ... 2nd shaping | molding water shielding sheet 23 ... Caulking 24 ... Double-sided butyl tape 25 ... Adhesive 26 ... Extrusion welding 30 ... Lower water-impervious structure 31A ... bottom protective mat 31B ... intermediate protective mat 31C ... surface protective mat 32A ... lower layer sheet 32B ... upper layer sheet 33 ... first molded impermeable sheets 33A-33 ... 1st shaping | molding impermeable division sheet 34 ... 2nd shaping | molding impermeable sheet 34A-34D ... 2nd shaping | molding impermeable division sheet 35A ... Inner sheet 35B ... Outer sheet 36A, 36B ... Automatic welding 37A, 37B ... Extrusion welding 40 ... Impedance Water sheet structure 41 ... Water shielding sheet 42 ... Extrusion welding 43 ... Automatic welding 44 ... Extrusion welding C ... Crane N ... Ground S1 ... Primary excavation surface

Claims (11)

A landfill area for landfilling waste by excavating the ground, and a roofed treatment facility provided with a roof covering the landfill area,
A plurality of cast-in-place piles are created at predetermined intervals in the landfill area,
A precast pile is erected vertically above the cast-in-place pile,
A roofed treatment facility, wherein the roof is supported using the precast pile as a pillar.   The processing facility with a roof according to claim 1, wherein the precast pile is made of concrete.   The processing facility with a roof according to claim 1, wherein an exposed portion of the cast-in-place pile from the ground is covered with a water shielding sheet. The boundary part with the ground in the exposed part from the ground in the cast-in-place pile is covered with an existing impermeable member,
The preformed water-impervious member is formed by dividing a hat shape including a tubular portion and a collar portion protruding laterally from the tubular portion into a plurality of portions by cutting along a height direction of the tubular portion. The treatment facility with a roof according to any one of claims 1 to 3, wherein the treatment facility is configured by combining a water shielding member.   The processing facility with a roof according to any one of claims 1 to 4, wherein an exposed portion from the ground in the cast-in-place pile is used as a part of the pillar. A method for constructing a roofed treatment facility that excavates the ground to form a landfill area where the waste is reclaimed and covers the landfill area with a roof,
In the ground to be the landfill area, a cast-in-place pile is created at a predetermined interval,
A precast pile is erected vertically above the cast-in-place pile,
While building the roof covering the landfill area, using the precast pile as a pillar,
A method for constructing a treatment facility with a roof, wherein the landfill area is formed by excavating around the cast-in-place pile. After performing primary excavation to excavate the ground to be the landfill area to a predetermined depth, the cast-in-place pile is created,
The construction method of the treatment facility with a roof according to claim 6, wherein after the formation of the cast-in-place pile, secondary excavation is performed to excavate a position deeper than the predetermined depth of the ground serving as the landfill area. After performing the primary excavation and erecting a precast pile on the cast-in-place pile, constructing the roof,
The construction method of the processing facility with a roof according to claim 7, wherein the secondary excavation is performed after the roof is constructed.   The construction method of the treatment facility with a roof according to any one of claims 6 to 7, wherein an exposed portion of the cast-in-place pile is covered with a water shielding sheet when performing the secondary excavation.   The roofed treatment according to claim 9, wherein the exposed cast-in-place pile is covered with the waterproof sheet every time the cast-in-place pile is exposed to a predetermined length during the secondary excavation. How to construct the facility.   After the said secondary excavation is completed, the boundary part of the exposed part from the ground and the ground in the said cast-in-place pile is covered with an existing impermeable member together with the ground. Construction method of the covered treatment facility as described.

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