JP6485916B2 - Covered sheet joint structure - Google Patents

Description

  The present invention relates to a joining structure of a covering sheet for joining a covering sheet covering the ground surface on the ground surface, and a fixing structure for the covering sheet for fixing the covering sheet covering the ground surface on the ground surface.

  In order to prevent the decline of embankment physical strength and erosion / surface collapse due to infiltration of rainwater into the embankment slope, a frame work, a block work, a vegetation work, and a covering work using a sheet are used. Among the coating works, the polymer-based water-proof and herbicidal sheet with excellent workability has not been evaluated for the growth of weeds, but the Railway Technical Research Institute has established these evaluation methods, We have developed a slope covering sheet that is excellent in workability, maintains a water- and grass-proofing effect for a long period of time, is maintenance-free, and considers harmony with the surrounding environment (landscape). The Railway Technical Research Institute has obtained a patent for a more economical water and grass protection sheet while maintaining water and grass performance.

  The conventional surface protection sheet includes a dimension-stabilizing cloth formed on the surface of the first water-impervious weed-proof sheet, a second water-impervious weed-proof sheet formed on the surface of the dimension-stabilizing cloth, and the second water-impervious sheet. An artificial turf base cloth formed on the surface of the grass sheet is provided (for example, see Patent Document 1). Such a conventional surface protection sheet is obtained by firmly fusing a dimension-stabilizing cloth between the first water-impervious grass sheet and the second water-impervious grass sheet. Expansion and contraction that occurs when the sheet is subjected to force or heat is suppressed by the dimension stabilizing cloth.

  The conventional ground surface herbicidal protective sheet is formed on the surface of the modified asphalt layer formed on the surface layer, the base material layer formed on the surface of the modified asphalt layer, and the surface of the base material layer. A modified asphalt layer and a surface layer of inorganic particles formed on the surface of the modified asphalt layer (see, for example, Patent Document 2). Such a conventional ground surface herbicidal protective sheet prevents the grass from penetrating the sheet over a long period of time by an asphalt layer having weather resistance and durability.

  The conventional slope protection sheet for the ground surface has a weed growth prevention layer formed on the surface of the installation surface protection layer, an intermediate water shielding layer formed on the surface of the weed growth prevention layer, and a surface of the intermediate water shielding layer. The pile tuft base fabric layer is formed, and a pile layer is formed on the surface of the pile tuft base fabric layer (see, for example, Patent Document 3). Such a conventional slope protection sheet for the ground surface prevents water from entering the ground by the intermediate water-impervious layer and prevents the growth of weeds by the weed growth prevention layer.

Next, the construction method (prior art 1) of the conventional water-impervious grass protection sheet will be described.
As shown in FIG. 25 (A), the conventional water-impervious and weeding sheet construction method includes a step of laying a non-woven fabric on the surface of the slope after shaping, and the surface of the non-woven fabric shown in FIG. 25 (B). 25, the step of laying artificial turf on the surface, the step of installing a glue frame on the surface of the artificial turf shown in FIG. 25C, the step of placing anchor pins on the glue frame shown in FIG. 25D, and FIG. After the step of installing ballast stoppers on the glue shoulder shown in (E), the construction of the waterproof and water-impervious sheet is completed as shown in FIG. As shown in FIG. 24 (A), in the conventional method for constructing a water-impervious weed-proof sheet, the bottom end of the water-impervious weed-proof sheet 105 is fixed by anchor pins 110 placed on the glue frame 106 at the glue butt 104c. The lower end portion of the adhesive waterproof sheet 105C bonded to the lower surface of the water-proof grass sheet 105 is bonded to the inner wall of the slope drainage groove 104d. As shown in FIG. 24 (B), in the conventional construction method of the water-proof and grass-proof sheet, the upper end of the water-proof and grass-proof sheet 105 is fixed by the anchor pin 110 placed on the glue frame 106 at the glue shoulder 104b, The upper end portion of the impermeable grass sheet 105 is sandwiched between the bottom surface of the ballast stopper 104e, and the nonwoven fabric 105B of the impermeable grass sheet 105 is fixed with the nonwoven fabric fixing pin 110B. It is fixed.

Next, the construction method (prior art 2) of the conventional water-impervious grass protection sheet will be described.
The construction method of the conventional water-impervious weed sheet shown in FIG. 26 includes a step of mowing the slope shown in FIG. 26 (A) and a method for fixing the water-impervious weed sheet on the shoulder shown in FIG. 26 (B). A step of excavating the groove, a step of attaching an adhesive tape to the connection portion of the water-proof grass sheet shown in FIG. 26 (C), and a groove for fixing the water-proof grass sheet shown in FIG. 26 (D). The step of excavating, the step of fixing the water-proof and grass-proof sheet to the shoulder shown in FIG. 26 (E), the step of connecting the water-proof and grass-proof sheets shown in FIGS. 26 (F) and (G) with adhesive tape, 26 (H), a step of backfilling the shoulder water-impervious weed sheet with quarrying, etc., a step of performing anchor drilling for suppressing the water-impervious weed sheet shown in FIG. 26 (I), and FIG. A process of driving anchors to suppress the water-impervious grass protection sheet shown in FIG. 26 (K) (L), a step of fastening the anchor nut to the flat steel for suppressing the water-impervious weed sheet, a step of fixing the water-impervious weed sheet to the glue butt shown in FIG. 26 (M), and FIG. As shown in FIG. 26 (O), the construction of the waterproof and water-insulating sheet is completed through a process of backfilling the water- and grass-proofing sheet at the bottom of the glue as shown in FIG.

Next, the construction procedure of the construction method (conventional techniques 1 and 2) of the conventional water-impervious grass protection sheet will be described.
First, in the cutting process, a product roll (width of about 2 m × length of about 20 m to 30 m) of the water-proof and grass-proof sheet is cut into a predetermined length at the site, or cut at a factory in advance and carried. Next, in the laying / deploying step, the impermeable grass sheet is installed at a predetermined position on the shoulder, and the impermeable grass sheet is developed downward toward the glue buttocks. Next, in the glue shoulder fixing step, the impermeable grass sheet is fixed to the glue shoulder. For example, in the construction method (prior art 1) of the water-proof grass sheet shown in FIG. 25, the water-proof grass sheet is laid and fixed under the L-shaped side groove shown in FIG. In the construction method (prior art 2) of the water-impervious weed sheet shown in FIG. 26, as shown in FIG. 26 (B), the shoulder is excavated, and the end of the water-impervious weed sheet is shown in FIG. 26 (E). Lay the part up to the bottom of excavation and fix it backfilled. Next, in the connecting step, as shown in FIGS. 26 (C), (F), and (G), the adjacent water-proof and grass-proof sheets are connected to each other with a predetermined overlap margin (for example, 15 cm overlap) using an adhesive tape. . Next, in the fixing step, as shown in FIGS. 25 (C) (D) and 26 (K), in order to prevent the water-impervious weed-proof sheet from curling, scattering and misalignment due to wind or the like, the channel steel (channel) Fix the water-impervious weed-proof sheet using metal fittings such as equilateral angle steel (angle), flat steel (t6 x w50) and anchor material together. The anchor material is round steel (φ19mm × L1000mm) or full threaded steel bar (φ16mm × L500mm). Next, in the glue butt fixing step, the impermeable grass sheet is fixed to the glue butt. For example, in the construction method (prior art 1) of the water-impervious weed sheet shown in FIG. 25, as shown in FIG. The sheet is fixed to the U-shaped side wall. In the construction method (prior art 2) of the water-impervious weed sheet shown in FIG. 26, as shown in FIGS. 26 (M) and (N), the U-shaped Embed and fix the end of the water-impervious grass protection sheet in the ground excavated.

Japanese Patent No.5258692

Japanese Patent No. 3800365

Japanese Patent No. 3251146

  In the construction method of the conventional water-impervious weedproof sheet (prior art 2), as shown in FIG. 26 (E), a roll-shaped water-impervious weedproof sheet is installed at a predetermined position on the shoulder (upper surface of the slope). As shown in FIG. 26 (F), it expands toward the bottom of the glue (bottom of the glue surface), and as shown in FIG. The water-proof and grass-proof sheet is joined after performing the above. In a conventional method for constructing a water-proof and grass-proof sheet, an adhesive tape having strong adhesiveness is used for joining. However, in the conventional method of constructing a water-proof and grass-proof sheet, it is necessary to bond the water-proof and grass-proof sheet after removing the release paper of the water-proof and grass-proof sheet so that no wrinkles occur in the water-proof and grass-proof sheet. It had been. Also, in the conventional construction method of water-proof and grass-proof sheet, since the adhesive tape is used for bonding, the adhesive strength is reduced due to deterioration over time, and the bonded water-proof and grass-proof sheet may peel off. Weeds could grow. Furthermore, in the conventional method of constructing a water-impervious weedproof sheet, when the water-impervious weed sheet cut in a strip shape is laminated and bonded so as to straddle adjacent water-impervious weed-proof sheets, an extra water-impervious weed-proof sheet is required. There is a problem that it becomes necessary and cost increases.

  In the conventional method for constructing a water-impervious weed-proof sheet, fixing is necessary because dripping, lifting, and displacement occur due to external forces such as wind. In the conventional construction method of water-proof and grass-proof sheet, reaction force is applied to concrete structures such as retaining walls and gutters, or fixed to the surface ground by using joints and anchors such as groove steel, equilateral angle steel, and flat steel. Measures such as doing are carried out. In the conventional construction method of a water-proof and grass-proof sheet, the tip of an anchor made of round steel of about φ16 mm to φ19 mm or full-threaded steel bar is sharpened, and threading is performed so that the nut can be tightened on the head of the anchor. In the conventional construction method of a water-proof and grass-proof sheet, an anchor construction method is used in which an anchor is driven after being drilled directly into the ground with a hammer from above the water-proof and grass-proof sheet or drilled with a drill smaller than the anchor diameter in advance. Yes. For this reason, in the conventional construction method of the water-proof and grass-proof sheet, the soil and the frictional resistance of the anchor peripheral surface become the anchor force, so that a relatively large number is required to obtain a predetermined anchor force. Also, in the conventional construction method of water-impervious weed-proof sheet, after excavating the ground of the shoulder and glue buttocks, embedding the water-impervious weed-proof sheet, and then backfilling and fixing with soil etc. It was. However, the conventional construction method of water-impervious and grass-proof sheets required a lot of labor for excavating and backfilling the ground, and in particular, excavating and backfilling the shoulder shoulders was a manual work, leading to an increase in construction costs. .

  The subject of this invention is providing the joining structure of the covering sheet which can fix easily a covering sheet on the ground surface while being able to join adjacent covering sheets easily.

The present invention solves the above-mentioned problems by the solving means described below.
In addition, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this embodiment.
As shown in FIGS. 3 to 6 , 13, 18, 19, and 22, the invention of claim 1 is a coating that joins a covering sheet (5) covering the ground surface (4 a) on the ground surface. A sheet-joining structure, which is adjacent to the back-side laminated member (7) laminated on the back surface of the edge (5a) of these adjacent covering sheets so as to close the gap between the adjacent covering sheets. Between the surface side laminated member (8) laminated on the surface of the edge part of these adjacent covering sheets, and between the surface side laminated member and the back side laminated member so as to close the gap between the coated sheets A fastening member (9) for fastening the front surface side laminated member and the back surface side laminated member so that the edge of the adjacent covering sheet is sandwiched, and the back surface side laminated member and the front surface side laminated member are connected to the ground surface. And a fixing member (10) that is detachably fixed to The back-side laminated member is a flat plate, the front-side laminated member is a leaf spring that applies an elastic force to the flat plate, and the fastening member passes through a gap between the adjacent covering sheets. A fastening bolt (9a) passing through the through holes (7a, 8a) of the back-side laminated member and the front-side laminated member, and a fastening nut (9b) fastened to the fastening bolt, The fixing bolt (10a) that passes through the through-holes (7a, 8a) of the back-side laminated member and the front-side laminated member and is fixed to the ground surface so as to pass through the gap between the adjacent covering sheets And a fixing nut (10b) for fixing the fixing bolt in a state where it is filled between the fixing bolt (10b) and the hole (10d) on the ground surface and the fixing bolt. With and before The through hole of the through-hole (7a) and the surface-side laminate member of the back-side lamination member (8a), that are characterized by being spaced apart along the gap between the cover sheet to the adjacent It is a junction structure (6) of a covering sheet.

According to a second aspect of the invention, the joint structure of the cover sheet of claim 1, as shown in FIGS. 18 and 19, the fixing bolt, the fixing agent is injected into the interior of the fixing bolt (C) The cover sheet joining structure is provided with a discharge port (10h) for discharging to the outside of the fixing bolt.

  According to the present invention, adjacent covering sheets can be easily joined together, and the covering sheets can be easily fixed on the ground surface.

It is a front view which shows typically the installation structure of the joining structure of the coating sheet which concerns on 1st Embodiment of this invention, and its fixing structure. It is a side view which shows typically the installation state of the joining structure of the coating sheet which concerns on 1st Embodiment of this invention, and its fixing structure. It is a perspective view which shows the state which decomposed | disassembled the joining structure of the coating sheet which concerns on 1st Embodiment of this invention. It is a top view of the junction structure of the covering sheet concerning a 1st embodiment of this invention. It is sectional drawing which shows the state cut | disconnected by the VV line | wire of FIG. It is sectional drawing which shows the state cut | disconnected by the VI-VI line of FIG. It is a perspective view which shows the state which decomposed | disassembled the fixing structure of the coating sheet which concerns on 1st Embodiment of this invention. It is a top view of the fixation structure of the covering sheet which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the state cut | disconnected by the IX-IX line of FIG. It is sectional drawing which shows the state cut | disconnected by the XX line of FIG. It is a longitudinal cross-sectional view for demonstrating the joining method of the coating sheet which concerns on 1st Embodiment of this invention, (A)-(F) is a longitudinal cross-sectional view of each process. It is a longitudinal cross-sectional view for demonstrating the fixing method of the coating sheet which concerns on 1st Embodiment of this invention, (A)-(F) is a longitudinal cross-sectional view of each process. It is a longitudinal cross-sectional view of the joining structure of the coating sheet which concerns on 2nd Embodiment of this invention. It is a longitudinal cross-sectional view of the fixing structure of the covering sheet which concerns on 2nd Embodiment of this invention. It is a longitudinal cross-sectional view of the joining structure of the coating sheet which concerns on 3rd Embodiment of this invention. It is a longitudinal cross-sectional view of the joining structure of the coating sheet which concerns on 4th Embodiment of this invention. It is a longitudinal cross-sectional view of the fixing structure of the coating sheet which concerns on 4th Embodiment of this invention. It is a longitudinal cross-sectional view of the joining structure of the coating sheet which concerns on 5th Embodiment of this invention. It is a longitudinal cross-sectional view for demonstrating the joining method of the coating sheet which concerns on 5th Embodiment of this invention. It is a longitudinal cross-sectional view of the joining structure of the coating sheet which concerns on 6th Embodiment of this invention. It is a longitudinal cross-sectional view for demonstrating the joining method of the coating sheet which concerns on 6th Embodiment of this invention. It is a longitudinal cross-sectional view of the joining structure of the coating sheet which concerns on 5th Embodiment of this invention. It is a longitudinal cross-sectional view of the fixing structure of the coating sheet which concerns on 5th Embodiment of this invention. It is a longitudinal cross-sectional view which shows the construction method (conventional technique 1) of the conventional water-impervious grass prevention sheet, (A) is a longitudinal cross-sectional view which shows the construction situation of a glue buttocks, and (B) shows the construction situation of a glue shoulder. It is a longitudinal cross-sectional view. It is the photograph for demonstrating the construction method (conventional technique 1) of the conventional water-impervious grass prevention sheet, (A)-(F) are photographs which show each process. It is the photograph for demonstrating the construction method (prior art 2) of the conventional water-impervious grass prevention sheet, (A)-(O) are photographs which show each process.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
A vehicle 1 shown in FIGS. 1 and 2 is a moving body that travels along a track 2. The vehicle 1 is a railway vehicle such as a train, a train, a locomotive, a passenger car, or a freight car. The track 2 is a passage (track) on which the vehicle 1 travels. The track 2 is, for example, a roadbed track in which a rail made of a pair of left and right rails and a support is laid on a roadbed made of granular material such as gravel or crushed stone. The roadbed 3 is a base that supports the track 2. The roadbed 3 is a structure that supports a load generated when the vehicle 1 passes. The roadbed 3 is, for example, a soil roadbed that is compacted using high-quality natural soil.

  The embankment 4 is a soil structure that is raised higher than the ground surface using high-quality natural soil or rock as a main material. The embankment 4 safely supports the track 2 and the roadbed 3 so that the vehicle 1 can travel stably. The embankment 4 is a slope (ground surface) 4a which is an inclined topography made by the earthwork of the embankment 4, a shoulder 4b which is the uppermost part of the slope 4a, and a lowermost part of the slope 4a. It has a glue butt (paste) 4c and the like.

  The covering sheet 5 is a member that covers the paste surface 4a. The covering sheet 5 is, for example, a slope covering sheet having a water shielding function for preventing rainwater from penetrating into the ground surface and a herbicidal function for preventing plant growth. The cover sheet 5 is carried into the site in a wound state and then cut into a sheet shape with a predetermined length and width, or is cut into a predetermined length and width in advance at a factory and then carried into the site in a wound state. . As shown in FIG. 1, the covering sheet 5 is laid in a state in which a plurality of the covering sheets 5 are arranged on the slope surface 4 a so as to cover the slope surface 4 a of the embankment 4. The covering sheet 5 is laid when the slope 4a is constructed in the case of the new slope 4a, and is laid when the slope 4a is repaired in the case of the existing slope 4a. The cover sheet 5 has a substantially quadrangular planar shape. As shown in FIGS. 4 to 10, the covering sheet 5 constitutes an end portion in the length direction (vertical direction) of the covering sheet 5 and an end portion in the width direction (horizontal direction) of the covering sheet 5. The edge part 5a etc. are provided.

(Coating sheet joining structure)
The joining structure 6 shown in FIGS. 1 and 3 to 6 is a structure for joining the covering sheet 5 on the glue surface 4a. As shown in FIGS. 3 to 6, the joining structure 6 functions as a joining jig for joining the adjacent covering sheets 5 by sandwiching the edge portions 5 a between the adjacent covering sheets 5, and these coverings. It also functions as a fixing jig for fixing the sheet 5 to the sliding surface 4a. As shown in FIG. 1, the joining structure 6 is installed in an adjacent area A ₁ where the covering sheet 5 is adjacent in the covering area A where the covering sheet 5 covers the slope 4 a. The joining structure 6 includes a back-side laminated member 7 shown in FIGS. 3 to 6, a front-side laminated member 8, a fastening member 9 shown in FIGS. 3 to 5, and a fixing member shown in FIGS. 3, 4, and 6. 10 and so on.

  The back surface side laminated member 7 shown in FIGS. 3-6 is a member laminated | stacked on the back surface of the edge part 5a of these adjacent coating sheets 5 so that the clearance gap between the adjacent coating sheets 5 may be block | closed. As shown in FIGS. 3, 5, and 6, the back surface side laminated member 7 sandwiches the edge portion 5 a of the covering sheet 5 adjacent to the front surface side laminated member 8. As shown in FIGS. 3 and 4, the back-side laminated member 7 is a flat plate that extends along the edge 5 a of the adjacent cover sheet 5. The back side laminated member 7 is a plate-like member made of a metal such as flat steel or a synthetic resin such as a plastic plate, having a square shape in cross section and a planar shape. The back-side laminated member 7 is laid on the lower side of the covering sheet 5 so that when an operator cuts the covering sheet 5 into a predetermined shape using a cutting tool such as a cutter in the field, It can be used as an underlay. As shown in FIGS. 3, 5, and 6, the back surface side laminated member 7 is disposed so as to overlap the edge portion 5 a of the covering sheet 5 so as to straddle the edge portion 5 a of the adjacent covering sheet 5. The back side laminated member 7 is installed on the paste surface 4a along the surface shape of the paste surface 4a so that no step is formed between the back surface side laminated member 7 and the paste surface 4a. The back side laminated member 7 is formed to have dimensions of, for example, a length of 700 mm, a width of 150 mm, and a thickness of 4.5 mm. The back side laminated member 7 includes a through hole 7a through which the fastening bolt 9a of the fastening member 9 and the fixing bolt 10a of the fixing member 10 pass. The back side laminated member 7 has, for example, through holes 7 a formed at positions separated by about 50 mm from both ends of the back side laminated member 7, and the through holes 7 a along the center line of the back side laminated member 7. A total of 7 pieces are formed at 100 mm intervals. As shown in FIG. 3, the back surface side laminated member 7 has two types of through holes 7a. The through hole (joining through hole) 7a through which the fastening bolt 9a passes is an outer diameter of the fastening bolt 9a. The through hole (fixing through hole) 7a through which the fixing bolt 10a passes is slightly larger than the inner diameter of the hole 10d and is formed with an inner diameter of about 30 to 40 mm. Yes.

  The surface-side laminated member 8 shown in FIGS. 3 to 6 is a member that is laminated on the surface of the edge portion 5 a of these adjacent covering sheets 5 so as to close the gap between the adjacent covering sheets 5. The front side laminated member 8 extends along the edge 5a of the adjacent covering sheet 5 as shown in FIGS. 3 and 4, and acts on the back side laminated member 7 as shown in FIGS. It is a leaf spring. As shown in FIGS. 3 to 6, the surface-side laminated member 8 is a curved plate made of metal or synthetic resin, having a quadrangular planar shape and an arcuate cross-sectional shape. When the front surface side laminated member 8 is fastened by the fastening member 9, the surface side laminated member 8 generates a bending elastic force (spring force) on the back surface side laminated member 7 side, and the edge of the covering sheet 5 between the back surface side laminated member 7. 5a is inserted. As shown in FIGS. 3, 5, and 6, the front-side laminated member 8 extends over the edge 5 a of the adjacent cover sheet 5 so as to close the gap between the adjacent cover sheets 5. Overlaid on the edge 5a. The front side laminated member 8 is formed to have dimensions of, for example, a length of 700 mm, a width of 120 mm, and a thickness of 4.5 mm. As shown in FIGS. 3, 5, and 6, the surface-side laminated member 8 includes a through hole 8 a and a sandwiching portion 8 b. The through hole 8a is an opening for fastening and anchor placement through which the fastening bolt 9a of the fastening member 9 and the fixing bolt 10a of the fixing member 10 pass. Two types of through-holes 8a are formed with the same inner diameter as the through-holes 7a at positions corresponding to the through-holes 7a on the back side laminated member 7 side, for example. The sandwiching portion 8 b is a portion that sandwiches the edge portion 5 a of the adjacent covering sheet 5 between the back surface side laminated member 7. The sandwiching portions 8 b are formed at both edge portions of the surface-side laminated member 8. The surface-side laminated member 8 is curved, for example, so that a gap of about 10 mm is provided between the sandwiched portion 8b of the surface-side laminated member 8 and the center portion of the surface-side laminated member 8.

  The fastening member 9 shown in FIGS. 3 to 5 includes the front side laminated member 8 and the rear side laminated member 8 so that the edge 5a of the adjacent covering sheet 5 is sandwiched between the front side laminated member 8 and the rear side laminated member 7. It is a member that fastens the back-side laminated member 7. The fastening member 9 adjusts the pressing force necessary to sandwich the edge portion 5a of the covering sheet 5 between the front surface side laminated member 8 and the back surface side laminated member 7 by adjusting the tightening amount of the fastening member 9. To do. The fastening member 9 includes a fastening bolt 9a shown in FIGS. 3 to 5, a fastening nut 9b, a washer 9c shown in FIGS. 3 and 5, a washer 9d shown in FIGS.

  The fastening bolt 9a shown in FIGS. 3 to 5 is a member that penetrates the back-side laminated member 7 and the front-side laminated member 8 so as to pass through a gap between the adjacent covering sheets 5. As shown in FIG. 5, the fastening bolt 9 a protrudes from the back surface side laminated member 7 and penetrates from the back surface side laminated member 7 toward the front surface side laminated member 8. And it is inserted in the through-hole 8a of the surface side laminated member 8. The fastening nut 9b shown in FIGS. 3 to 5 is a member fastened to the fastening bolt 9a and is detachably attached to the fastening bolt 9a. 3 and 5 is a member that is sandwiched between the seating surface of the fastening bolt 9a and the back-side laminated member 7. The washer 9d shown in FIGS. 3 to 5 is a member that is sandwiched between the seating surface of the fastening nut 9b and the surface-side laminated member 8.

  The fixing member 10 shown in FIGS. 3, 4, and 6 is a member that removably fixes the back side laminated member 7 and the front side laminated member 8 to the slope 4a. As shown in FIG. 6, the fixing member 10 fixes the covering sheet 5 to the slope 4a in a state where the adjacent covering sheets 5 are joined. The fixing member 10 includes a fixing bolt 10a shown in FIGS. 3, 4 and 6, a fixing nut 10b, a washer 10c, a hole 10d shown in FIGS. 3 and 6, a fixing agent layer 10e, and the like. .

  The fixing bolt 10a shown in FIGS. 3, 4 and 6 penetrates the back surface side laminated member 7 and the front surface side laminated member 8 so as to pass through the gaps between the adjacent covering sheets 5, and is fixed to the glue surface 4a. It is a member. As shown in FIGS. 3 and 6, the fixing bolt 10 a protrudes from the back surface side laminated member 7, and extends through the back surface side laminated member 7 from the back surface side laminated member 7 toward the front surface side laminated member 8. The through holes 7 a and the through holes 8 a of the surface side laminated member 8 are inserted. The fixing bolt 10a is, for example, an anchor bolt such as a round steel or a full-threaded steel bar having a male threaded portion at the end or the entire length. The fixing nut 10b shown in FIGS. 3, 4 and 6 is a member fastened to the fixing bolt 10a. The fixing nut 10b is detachably attached to the fixing bolt 10a to fasten the fixing bolt 10a and the surface side laminated member 8. The washer 10 c is a member that is sandwiched between the seating surface of the fixing nut 10 b and the surface-side laminated member 8. The hole 10d is a portion into which the fixing bolt 10a is inserted. As shown in FIG. 6, the hole 10d is an anchor placement hole for placing the fixing bolt 10a on the slope 4a, and is formed in the slope 4a at a predetermined depth. As shown in FIGS. 4 and 6, the hole 10 d is formed between the adjacent cover sheets 5 so that the hole 10 d can be formed in the paste surface 4 a in a state where the cover sheets 5 are arranged and laid on the paste surface 4 a. The inner diameter is smaller than the gap. The fixing agent layer 10e shown in FIGS. 3 and 6 is a portion for fixing the fixing bolt 10a in a state where it is filled between the hole 10d of the slope 4a and the fixing bolt 10a. The fixing agent layer 10e is formed, for example, by filling a fixing agent C such as mortar or cement milk having a high strength between the hole 10d and the fixing bolt 10a.

(Coating sheet fixing structure)
The fixing structure 11 shown in FIGS. 1, 2, and 7 to 10 is a structure for fixing the covering sheet 5 on the slope 4 a. Unlike the joining structure 6 shown in FIGS. 1 and 3 to 6, the fixing structure 11 does not have a function as a joining jig for joining the covering sheets 5 to each other, as shown in FIGS. 7 to 10. By sandwiching the edge 5a of the covering sheet 5, it functions only as a fixing jig for fixing the covering sheet 5 to the slope 4a. As shown in FIGS. 1 and 2, the fixing structure 11 is disposed in a peripheral region A ₂ corresponding to the peripheral portion of the covering region A where the covering sheet 5 covers the paste surface 4 a. The fixing structure 11 includes a back-side laminated member 12 shown in FIGS. 7 to 10, a front-side laminated member 13, a fastening member 14 shown in FIGS. 7 to 9, and a fixing member 15 shown in FIGS. 7, 8, and 10. Etc.

  The back surface side laminated member 12 shown in FIGS. 7 to 10 is a member laminated on the back surface of the edge portion 5 a of the covering sheet 5. As shown in FIGS. 7, 9, and 10, the back surface side laminated member 12 sandwiches the edge portion 5 a of the covering sheet 5 adjacent to the front surface side laminated member 13. The back-side laminated member 12 has the same structure as the back-side laminated member 7 shown in FIGS. 3 to 6 and is a flat plate extending along the edge portion 5a of the covering sheet 5 as shown in FIGS. The back side laminated member 12 is disposed along the edge 5a of the covering sheet 5 so as to sandwich the edge 5a of the covering sheet 5. The back-side laminated member 12 has the same shape as the back-side laminated member 7 shown in FIGS. 3 to 6, and the fastening bolt 14 a of the fastening member 14 and the fixing member 15 are fixed as shown in FIGS. 7, 9, and 10. A through hole 12a through which the bolt 15a passes is provided.

  7 to 10 is a member that is laminated on the surface of the edge portion 5a of the covering sheet 5. The surface-side laminated member 13 has the same structure as the surface-side laminated member 8 shown in FIGS. 3 to 6 and extends along the edge 5a of the covering sheet 5 as shown in FIGS. As shown in FIG. 10, the leaf spring is used to apply an elastic force to the back-side laminated member 12. The front side laminated member 13 is disposed along the edge 5a of the covering sheet 5 so as to sandwich the edge 5a of the covering sheet 5 together with the back side laminated member 12 as shown in FIGS. ing. As shown in FIGS. 7, 9, and 10, the surface-side laminated member 13 includes a through hole 13 a and a sandwiching portion 13 b. The through hole 13 a is an opening through which the fastening bolt 14 a of the fastening member 14 and the fixing bolt 15 a of the fixing member 15 pass. The sandwiching part 13 b is a part that sandwiches the edge part 5 a of the covering sheet 5 with the back surface side laminated member 12. The sandwiching portions 13 b are formed at both edge portions on the back surface of the front surface side laminated member 13. As shown in FIGS. 9 and 10, the front side laminated member 13 has one sandwiched portion 13b sandwiching the edge portion 5a of the covering sheet 5 between the rear side laminated member 12, and the other sandwiched portion 13b is the rear side. Directly joined to the laminated member 12.

  The fastening member 14 shown in FIGS. 7 to 9 has the front side laminated member 13 and the back side so that the edge 5a of the covering sheet 5 is sandwiched between the front side laminated member 13 and the back side laminated member 12. It is a member that fastens the laminated member 12. The fastening member 14 has the same structure as that of the fastening member 9 shown in FIGS. 3 to 5, the fastening bolt 14 a shown in FIGS. 7 to 9, the fastening nut 14 b, and the washer 14 c shown in FIGS. 7, 9, and 10. And a washer 14d shown in FIGS. The fastening bolt 14a shown in FIGS. 7 to 9 is a member that penetrates the back-side laminated member 12 and the front-side laminated member 13 so as to pass the outside of the edge portion 5a of the covering sheet 5. As shown in FIGS. 7 and 9, the fastening bolt 14 a protrudes from the back surface side laminated member 12 and passes through the back surface side laminated member 12 toward the front surface side laminated member 13. The through holes 12 a and the through holes 13 a of the surface side laminated member 13 are inserted. A washer 14d shown in FIG. 9 has a fastening nut 14b and a fastening nut 14b so that the seating surface of the fastening nut 14b and the surface-side laminated member 13 come into close contact with each other when the surface-side laminated member 13 is inclined with respect to the back-side laminated member 12. A spherical washer or the like sandwiched between the front-side laminated member 13 and the like.

  The fixing member 15 shown in FIGS. 7, 8, and 10 is a member that detachably fixes the back side laminated member 12 and the front side laminated member 13 to the slope 4a. As shown in FIG. 10, the fixing member 15 fixes the covering sheet 5 to the slope 4a in a state where the edge 5a of the covering sheet 5 is sandwiched. The fixing member 15 has the same structure as the fixing member 10 shown in FIGS. 3, 4 and 6. The fixing bolt 15 a, the fixing nut 15 b, the washer 15 c shown in FIGS. And a hole 15d shown in FIG. 10, a fixing agent layer 15e, and the like. As shown in FIGS. 7, 8, and 10, the fixing bolt 15 a penetrates the back surface side laminated member 12 and the front surface side laminated member 13 so as to pass the outside of the edge portion 5 a of the covering sheet 5. It is a member fixed to 4a. The fixing bolt 15a protrudes from the back surface side laminated member 12, and the through holes 12a of the back surface side laminated member 12 and the surface side laminated member 13 are penetrated from the back surface side laminated member 12 toward the front surface side laminated member 13. It is inserted into the through hole 13a. The washer 15c shown in FIG. 10 has a fixing nut 15b and a fixing nut 15b so that the seating surface of the fixing nut 15b and the surface-side laminated member 13 come into close contact with each other when the surface-side laminated member 13 is inclined with respect to the back-side laminated member 12. A spherical washer or the like sandwiched between the front-side laminated member 13 and the like.

(Coating sheet joining method)
Next, the joining method of the coating sheet which concerns on 1st Embodiment of this invention is demonstrated.
The cover sheet 5 that has been previously cut into a predetermined length and width before shipment at the factory is taken into the field in a wound state. When the covering sheet 5 is taken into the field from the factory in a state of being wound up with an arbitrary length and width, the covering sheet 5 is once expanded on the site, and an operator cuts it into a predetermined length and width. The subsequent covering sheet 5 is returned to the wound state. Next, an operator develops the covering sheet 5 along the glue surface 4a from the glue shoulder 4b of the embankment 4 shown in FIGS. 1 and 2 toward the glue butt 4c. At this time, as shown in FIG. 11 (A), an operator sequentially develops the covering sheets 5 in the covering region A shown in FIG. 1 so that a predetermined gap is formed between the adjacent covering sheets 5. An operator lays the covering sheet 5 on the sliding surface 4a by adjusting a gap between the adjacent covering sheets 5 and the like. As a result, the covering sheet 5 is laid side by side on the slope surface 4 a in the covering area A shown in FIG. 1, and the covering face 4 a in the covering area A is covered with the covering sheet 5.

Next, as shown in FIG. 11 (B), the worker arranges the back-side laminated member 7 in the adjacent area A ₁ of the covering area A shown in FIG. An operator inserts the back surface side laminated member 7 between the surface 4a. As a result, the back surface side laminated member 7 is installed side by side between the back surface and the glue surface 4a of these covering sheets 5 so as to block the edge portions 5a of the adjacent covering sheets 5.

  Next, as shown in FIG. 11C, an operator inserts a washer 9d into the fastening bolt 9a, and the fastening bolt 9a is inserted into the through-hole 7a from the back side to the front side of the back side laminated member 7 at a predetermined interval. Then the worker inserts. Next, an operator adjusts and arranges the covering sheet 5 at a normal position while removing the wrinkles and the like of the covering sheet 5 so that the covering sheet 5 is covered along the unevenness of the glue surface 4a. The operator adjusts the back-side laminated member 7 to the normal position according to the position. At this time, the gap between the adjacent covering sheets 5 is not constant due to the unevenness of the paste surface 4a, and when the covering sheet 5 is laid obliquely, the gap between the adjacent covering sheets 5 is constant. Further, the operator cuts the covering sheet 5 by placing the back side laminated member 7 as an underlay and applying a ruler to the covering sheet 5. Next, an operator inserts the fastening bolt 9 a of the fastening member 9 into the through hole 8 a of the front side laminated member 8 from the back side to the front side of the front side laminated member 8. As a result, the surface-side laminated member 8 is installed side by side on the edge portion 5a of the adjacent cover sheet 5 so as to close the gap between the adjacent cover sheets 5. Next, the worker inserts the washer 9d into the fastening bolt 9a, attaches the fastening nut 9b to the fastening bolt 9a, and tightens the fastening nut 9b until a predetermined torque is reached. At this time, these through holes 7a and 8a are located at the same position so that the fixing bolt 11a of the fixing member 11 can be inserted into the through hole 7a on the back surface side laminated member 7 side and the through hole 8a on the front surface side laminated member 8 side. The worker positions the back side laminated member 7 and the front side laminated member 8 so as to be. As a result, the adjacent covering sheet 5 is joined in a state where the adjacent covering sheet 5 is sandwiched between the back-side laminated member 7 and the front-side laminated member 8, and the adjacent covering sheet 5 is a paste surface. Joined on 4a.

  Next, as shown in FIG. 11 (D), an operator inserts a drill for drilling from the through hole 8a of the front surface side laminated member 8 toward the through hole 7a of the back surface side laminated member 7, and the slope 4a Using a drilling hole in the ground, the operator drills (excavates) at a predetermined depth, and a hole 10d is formed in the slope 4a. At this time, the hole 10d is formed by the operator drilling the slope 4a so that the inner diameter of the hole 10d is larger than the outer diameter of the fixing bolt 10a. When forming the hole 10d having a larger inner diameter than the through-hole 8a of the front-side laminated member 8 and the through-hole 7a of the back-side laminated member 7, a diameter-expanding drill having a cutting blade that opens radially from the drill tip. The operator forms a hole portion 10d having an inner diameter larger than the inner diameter of the prepared hole formed by the drill for drilling. Next, a worker processes excavation and earth excavation generated when drilling the hole 10d, and the worker cleans the hole wall of the hole 10d.

  Next, as shown in FIG. 11 (E), considering the volume of the fixing bolt 10a inserted into the hole 10d, the through-hole 8a of the front-side laminated member 8 passes through the through-hole 7a of the back-side laminated member 7. An operator injects the fixing agent C into the hole 10d. Next, an operator inserts fixing bolts 10a into the holes 10d from the through-holes 8a of the front-side laminated member 8 toward the through-holes 7a of the back-side laminated member 7, and the fixing agent C is cured. Wait until the fixing agent layer 10e is formed. When the fixing bolt 10a is inserted into the hole 10d and the fixing agent C does not reach the opening of the hole 10d and the fixing agent C is insufficient, the operator injects the insufficient fixing agent C into the hole 10d. When the fixing agent C overflows from the hole 10d, the worker removes the excessive overflowing fixing agent C.

  Next, as shown in FIG. 11F, after the fixing agent C is cured, an operator inserts a washer 10c into the fixing bolt 10a protruding from the through hole 8a of the surface-side laminated member 8, and the fixing bolt 10a is inserted into the fixing bolt 10a. The worker tightens the fixing nut 10b until the predetermined torque is reached by mounting the fixing nut 10b. As a result, the adjacent covering sheet 5 is joined in a state where the adjacent covering sheet 5 is sandwiched between the back-side laminated member 7 and the front-side laminated member 8, and the adjacent covering sheet 5 is a paste surface. 4a is fixed.

(Coating sheet fixing method)
Next, the fixing method of the covering sheet which concerns on 1st Embodiment of this invention is demonstrated.
Figure 12 (A), the outside edge portion 5a of the cover sheet 5 located on the peripheral area A ₂ of the coating region A shown in FIG. 1, the back side laminate member 12, as shown in FIG. 12 (B) Are roughly arranged side by side, and the worker inserts the back-side laminated member 12 between the edge 4a of the glue surface 4a, the shoulder 4b, the glue butt 4c, and the covering sheet 5. As a result, the back-side laminated member 12 is placed between the glue surface 4a, the shoulder 4b and the glue butt 4c, and the back surface of the coating sheet 5 so that the back-side laminated member 12 is positioned outside the edge 5a of the covering sheet 5. Are installed side by side.

  Next, as shown in FIG. 12C, an operator inserts a washer 14 d into the fastening bolt 14 a of the fastening member 14, and inserts the fastening bolt 14 a from the back side to the front side of the back side laminated member 12. The operator inserts them at predetermined intervals. Next, the edge 5a of the covering sheet 5 is brought into a normal position while removing the wrinkles of the covering sheet 5 so that the covering sheet 5 is covered along the unevenness of the glue surface 4a, the shoulder shoulder 4b, and the glue butt 4c. While the worker adjusts and arranges the worker, the worker adjusts the back-side laminated member 12 to the normal position in accordance with the position of the edge portion 5a of the covering sheet 5. At this time, when the covering sheet 5 is laid obliquely by the unevenness of the glue surface 4a, the glue shoulder 4b, and the glue butt 4c, the center line of the back-side laminated member 12 and the edge 5a of the covering sheet 5 are An operator cuts the covering sheet 5 by placing the back side laminated member 12 underlay and applying a ruler to the covering sheet 5 so as to be parallel. Next, an operator inserts the fastening bolt 14 a of the fastening member 14 into the through hole 13 a of the front side laminated member 13 from the back side to the front side of the front side laminated member 13. As a result, the surface-side laminated member 13 is placed side by side on the edge 5 a of the covering sheet 5 so that the surface-side laminated member 13 is positioned outside the edge 5 a of the covering sheet 5. Next, the worker inserts the washer 14d into the fastening bolt 14a, attaches the fastening nut 14b to the fastening bolt 14a, and tightens the fastening nut 14b until a predetermined torque is reached. At this time, these through holes 12a and 13a are located at the same position so that the fixing bolt 15a of the fixing member 15 can be inserted into the through hole 12a on the back surface side laminated member 12 side and the through hole 13a on the front surface side laminated member 13 side. An operator positions the back side laminated member 12 and the front side laminated member 13 so as to be. As a result, the edge 5a of the covering sheet 5 is sandwiched between the back-side laminated member 7 and the front-side laminated member 8 so that the edge 5a of the covering sheet 5 has the glue surface 4a, the glue shoulder 4b, and the glue butt. Positioned on 4c.

  Next, as shown in FIG. 12 (D), an operator inserts a drill for drilling from the through hole 13a of the front surface side laminated member 13 toward the through hole 12a of the back surface side laminated member 12, and the slope surface 4a. Then, an operator drills (excavates) at a predetermined depth using a drilling hole in the ground of the shoulder 4b and the tail 4c, and a hole 15d is formed in the glue surface 4a, the shoulder 4b and the shoulder 4c. It is formed. At this time, the hole 15d is formed by an operator drilling the glue surface 4a, the glue shoulder 4b, and the glue butt 4c so that the inner diameter of the hole 15d is larger than the outer diameter of the fixing bolt 15a. When forming the hole 15d having a larger inner diameter than the through-hole 13a of the front-side laminated member 13 and the through-hole 12a of the back-side laminated member 12, the operator forms the hole 15d using a diameter expanding drill. To do. Next, an operator processes excavation and earth excavation generated when drilling the hole 15d, and the worker cleans the hole wall of the hole 15d.

  Next, as shown in FIG. 12E, considering the volume of the fixing bolt 15a to be inserted into the hole 15d, the through-hole 13a of the front-side laminated member 13 passes through the through-hole 12a of the back-side laminated member 12. An operator injects the fixing agent C into the hole 15d. Next, a fixing bolt 15a is inserted into the hole 15d at a predetermined interval from the through hole 13a of the front surface side laminated member 13 to the through hole 12a of the back surface side laminated member 12, and the fixing agent C is cured. Until the fixing agent layer 15e is formed. When the fixing bolt 15a is inserted into the hole 15d and the fixing agent C does not reach the opening of the hole 15d and the fixing agent C runs short, the worker injects the insufficient fixing agent C into the hole 15d. When the fixing agent C overflows from the hole 15d, the worker removes the excessive overflowing fixing agent C.

  Next, as shown in FIG. 12 (F), after the fixing agent C is cured, an operator inserts a washer 15c into the fixing bolt 15a protruding from the through hole 13a of the surface side laminated member 13, and the fixing bolt 15a is inserted into the fixing bolt 15a. The worker tightens the fixing nut 15b until the predetermined torque is reached by mounting the fixing nut 15b. As a result, the edge 5a of the covering sheet 5 is sandwiched between the back-side laminated member 12 and the front-side laminated member 13, so that the edge 5a of the covering sheet 5 has the glue surface 4a, the shoulder 4b, and the glue butt. It is fixed to 4c.

The joint structure for covering sheets according to the first embodiment of the present invention has the following effects.
(1) In the first embodiment, the back-side laminated member 7 is laminated on the back surface of the edge portion 5a of the adjacent covering sheets 5 so as to close the gap between the adjacent covering sheets 5, The surface-side laminated member 8 is laminated on the surface of the edge portion 5a of the adjacent covering sheets 5 so as to close the gap between the covering sheets 5 to be performed. Moreover, in this 1st Embodiment, this surface side laminated member 8 and this back surface side laminated | stacked so that the edge 5a of the adjacent coating sheet 5 may be pinched | interposed between the surface side laminated member 8 and the back surface side laminated member 7. The fastening member 9 fastens the member 7. For this reason, the covering sheet 5 can be simply joined in a short time with a simple connection structure without using an adhesive tape such as a conventional water-proof and grass-proof sheet. In addition, it is not necessary to install various presser fittings such as glue frames and grooved steel like conventional water-proof and grass-proof sheets after laying the water-proof and grass-proof sheets. Can do. Furthermore, there is no need to affix and join a band-shaped impermeable and weed sheet across adjacent impermeable and weed sheets such as a conventional impermeable and weed sheet, so that the covering sheet 5 is not wasted and material costs are reduced. It can be greatly reduced.

(2) In the first embodiment, the back-side laminated member 7 is a flat plate, and the front-side laminated member 8 is a leaf spring that applies an elastic force to the flat plate. For this reason, the edge part 5a of the coating sheet 5 which adjoins can be simply joined by the leaf | plate spring of the simple structure which has elasticity. Moreover, since it is the structure which pinches | interposes the edge part 5a of the adjacent coating sheet 5 between flat plates with the elastic force of a leaf | plate spring, even if there exists an unevenness | corrugation in the paste surface 4a, the coating sheets 5 can be joined easily. . Furthermore, since the back surface side laminated member 7 is a flat plate, the flat sheet can be used as an underlay, and the covering sheet 5 can be easily cut to adjust the shape of the covering sheet 5.

(3) In the first embodiment, the fastening bolt 9a passes through the back-side laminated member 7 and the front-side laminated member 8 so as to pass through the gap between the adjacent covering sheets 5, and a fastening nut is inserted into the fastening bolt 9a. 9b is fastened. For this reason, the operation | work which penetrates an anchor material like the conventional water-impervious grass prevention sheet to a water-impervious grass prevention sheet | seat, and places in a ground becomes unnecessary, and it can prevent that a plant grows from a through-hole.

(4) In the first embodiment, the fixing member 10 is detachably fixed to the sliding surface 4a of the back side laminated member 7 and the front side laminated member 8. For this reason, in the state which joined the adjacent coating sheet 5, this coating sheet 5 can be reliably fixed to the slope 4a. Further, when the covering sheet 5 is damaged, the fixing member 10 can be removed from the slope surface 4a, and can be quickly replaced with a new covering sheet 5.

(5) In the first embodiment, the fixing bolt 10a is fixed to the paste surface 4a through the back side laminated member 7 and the front side laminated member 8 so as to pass through the gap between the adjacent covering sheets 5. The fixing nut 10b is fastened to the fixing bolt 10a. For this reason, the operation | work which penetrates an anchor material like the conventional water-impervious grass prevention sheet to a water-impervious grass prevention sheet | seat, and places in a ground becomes unnecessary, and it can prevent that a plant grows from a through-hole.

(6) In the first embodiment, the fixing agent layer 10e fixes the fixing bolt in a state of being filled between the hole 10d of the slope surface 4a and the fixing bolt 10a. For this reason, the fixing agent C such as mortar can be injected into the hole 10d to increase the thickness of the fixing bolt 10a functioning as an anchor material, and the number of the fixing bolts 10a can be reduced. And can be economical.

The cover sheet fixing structure according to the first embodiment of the present invention has the following effects.
(1) In the first embodiment, the back-side laminated member 12 is laminated on the back surface of the edge portion 5 a of the covering sheet 5, and the surface-side laminated member 13 is laminated on the surface of the edge portion 5 a of the covering sheet 5. Moreover, in this 1st Embodiment, this surface side laminated member 13 and this back side laminated member 12 are so that the edge 5a of the coating sheet 5 may be pinched | interposed between the surface side laminated member 13 and the back side laminated member 12. The fastening member 14 fastens, and the fixing member 15 removably fixes the back side laminated member 12 and the front side laminated member 13 to the slope 4a. For this reason, the excavation and backfilling operations on the shoulders and the bottom of the glue like the conventional water-proof and grass-proof sheet can be omitted, and the labor-saving and cost-effective construction can be achieved.

(2) In the first embodiment, the back-side laminated member 12 is a flat plate, and the front-side laminated member 13 is a leaf spring that applies an elastic force to the flat plate. For this reason, the edge part 5a of the coating sheet 5 can be simply fixed by the leaf | plate spring of the simple structure which has elasticity. Moreover, since the back surface side laminated member 12 is a flat plate, the cover sheet 5 can be easily cut and the shape of the cover sheet 5 can be adjusted using this flat plate as an underlay.

(3) In the first embodiment, the fastening bolt 14a passes through the back side laminated member 12 and the front side laminated member 13 so as to pass outside the edge 5a of the covering sheet 5, and is fastened to the fastening bolt 14a. The nut 14b is fastened. For this reason, the operation | work which penetrates an anchor material like the conventional water-impervious grass prevention sheet to a water-impervious grass prevention sheet | seat, and places in a ground becomes unnecessary, and it can prevent that a plant grows from a through-hole.

(4) In the first embodiment, the fixing bolt 15a is fixed to the paste surface 4a through the outer side of the edge portion 5a of the covering sheet 5 and penetrating the back side laminated member 12 and the front side laminated member 13. The fixing nut 15b is fastened to the fixing bolt 15a. For this reason, the operation | work which penetrates an anchor material like the conventional water-impervious grass prevention sheet to a water-impervious grass prevention sheet | seat, and places in a ground becomes unnecessary, and it can prevent that a plant grows from a through-hole.

(5) In the first embodiment, the fixing bolt 15a is fixed to the fixing bolt 15a in a state in which the fixing bolt 15a is filled between the hole 15d of the slope 4a and the fixing bolt 15a. For this reason, the fixing agent C can be injected into the hole 15d to thicken the fixing bolt 15a functioning as an anchor material, and the resistance force of the fixing bolt 15a can be easily increased. As a result, excavation and backfilling work can be omitted at the shoulders and bottoms of the shoulders like the conventional water-proof and grass-proof sheet, and the number of fixing bolts 15a can be reduced. Can be achieved.

(Second Embodiment)
In the following, the same parts as those shown in FIGS. 1 to 12 are denoted by the same reference numerals and detailed description thereof is omitted.
13 is different from the surface-side laminated member 8 shown in FIGS. 3, 5, and 6 in that the sandwiched portion is formed by bending both end portions of the surface-side laminated member 8 at substantially right angles as shown in FIG. 8b. 14 is different from the surface-side laminated member 13 shown in FIGS. 7, 9, and 10, and is sandwiched by bending both ends of the surface-side laminated member 13 at substantially right angles as shown in FIG. 13b. The surface-side laminated member 13 is, for example, a bent plate made of metal or synthetic resin, and is formed by pressing both edges of flat steel at a substantially right angle in the case of metal. Is formed by integral molding. This second embodiment has the same effect as the first embodiment.

(Third embodiment)
The fixing member 15 shown in FIG. 15 includes a gap adjusting portion 15f. The gap adjusting portion 15f is configured so that the front side laminated member 13 and the back side laminated member 12 sandwich the edge portion 5a of the covering sheet 5 with a certain distance therebetween. It is a member which adjusts the clearance gap between. The gap adjusting portion 15f is a band-shaped member made of metal or synthetic resin having substantially the same thickness as the cover sheet 5, and serves as a spacer that keeps the gap between the front side laminated member 13 and the rear side laminated member 12 constant. Function. For example, a band-shaped member obtained by cutting the covering sheet 5 into a band shape is used as the gap adjusting unit 15f. The gap adjusting portion 15 f is sandwiched between the edge portion of the front surface side laminated member 13 and the edge portion of the back surface side laminated member 12 opposite to the side where the edge portion 5 a of the covering sheet 5 is sandwiched.

The covering sheet fixing structure according to the third embodiment has the following effects in addition to the effects of the first and second embodiments.
In the third embodiment, the front-side laminated member 13 and the back-side laminated member 13 are sandwiched between the front-side laminated member 13 and the back-side laminated member 12 with a certain distance therebetween. The gap adjusting unit 15f adjusts the gap between the two. For this reason, it is possible to prevent the edge portion 5a of the covering sheet 5 from being sandwiched between the front-side laminated member 13 and the back-side laminated member 12 and to cover the surface-side laminated member 13 and the back-side laminated member 12 with each other. The edge 5a of the sheet 5 can be sandwiched evenly, and the covering sheet 5 can be securely fixed to the slope 4a.

(Fourth embodiment)
16 differs from the fastening bolt 9a shown in FIGS. 5 and 13 in that the head of the fastening bolt 9a is fixed to the surface of the back-side laminated member 7 by welding or the like as shown in FIG. Yes. Similarly, the fixing structure 11 shown in FIG. 17 is different from the fastening bolt 14a shown in FIGS. 9 and 14, and the head of the fastening bolt 14a is welded to the surface of the back side laminated member 12 as shown in FIG. It is fixed. In the fourth embodiment, in addition to the effects of the first to third embodiments, the through holes 7a and 12a of the back-side laminated members 7 and 12 as shown in FIGS. 5, 9, 13 and 14 are used. In addition, since the operator does not need to insert the fastening bolts 9a and 14a, the assembling operation can be performed in a short time.

(Fifth embodiment)
18 and 19 is different in structure from the fixing bolt 10a shown in FIG. The fixing structure 11 shown in FIGS. 20 and 21 is different in structure from the fixing bolt 15a shown in FIG. In the fixing bolts 10a and 15a shown in FIGS. 18 to 21, for example, a male screw portion is formed at the end portion or the entire length of the hollow steel pipe. The fixing bolts 10a and 15a include injection ports 10g and 15g shown in FIGS. 19 and 21, discharge ports 10h and 15h shown in FIGS. The injection ports 10g and 15g shown in FIGS. 19 and 21 are portions for injecting the fixing agent C into the fixing bolts 10a and 15a. The injection ports 10g and 15g are formed at the ends of the fixing bolts 10a and 15a. The discharge ports 10h and 15h shown in FIGS. 18 to 21 are portions for discharging the fixing agent C injected into the fixing bolts 10a and 15a to the outside of the fixing bolts 10a and 15a. The discharge ports 10h and 15h function as discharge holes for filling the fixing agent C in the gaps between the fixing bolts 10a and 15a and the holes 10d and 15d, and are formed through the side surfaces of the fixing bolts 10a and 15a. Has been.

Next, a covering sheet joining method and a fixing method thereof according to a fifth embodiment of the present invention will be described.
After the holes 10d and 15d shown in FIGS. 19 and 21 are drilled in the slope 4a by the worker, the fixing bolts 10a and 15a are inserted into the holes 10d and 15d by the worker. Next, the female screw portion of the injection port on the injection device side indicated by the two-dot chain line in the figure is engaged with the male screw portions of the injection ports 10g and 15g on the fixing bolts 10a and 15a, and the injection ports 10g and 15g are sealed. Then, the fixing agent C is pressurized and injected from the injection device to the fixing bolts 10a and 15a. As a result, when the fixing agent C injected from the injection ports 10g, 15g flows into the fixing bolts 10a, 15a, the fixing agent C flows out from the discharge ports 10h, 15h, and the fixing bolts 10a, 15a and the holes 10d, The fixing agent C flows into the gap between the fixing member C and the fixing agent C.

In addition to the effects of the first to fourth embodiments, the cover sheet joining structure and the fixing structure thereof according to the fifth embodiment of the present invention have the following effects.
In the fifth embodiment, the fixing agent C injected into the fixing bolts 10a and 15a is discharged to the outside of the fixing bolts 10a and 15a through the discharge ports 10h and 15h. For this reason, it is possible to inject the fixing agent C into the holes 10d and 15d by an optimum amount with the fixing bolts 10a and 15a inserted in the holes 10d and 15d.

(Sixth embodiment)
22 is different from the fixing bolt 10a shown in FIGS. 6, 18 and 19 in that the fixing bolt 10a is directly driven into the slope 4a as shown in FIG. Similarly, the fixing structure 11 shown in FIG. 23 differs from the fixing bolt 15a shown in FIGS. 10, 20, and 21 in that the fixing bolt 15a is directly driven into the slope surface 4a as shown in FIG. In the sixth embodiment, in addition to the first to fourth embodiments, it is not necessary to form the holes 10d and 15d and the fixing agent layers 10e and 15e, and the fixing operation can be completed in a short time. .

(Other embodiments)
The present invention is not limited to the embodiment described above, and various modifications or changes can be made as described below, and these are also within the scope of the present invention.
(1) In this embodiment, the case where the slope 4a is covered with the covering sheet 5 has been described as an example. However, the covering sheet 5 covers a cut (soil) which is a soil structure obtained by cutting the original ground. The present invention can be applied to cases. Moreover, although this embodiment demonstrated and demonstrated the bank embankment 4 as an example, this invention is applicable also to embankments, such as a road and a residential land development land. Furthermore, in this embodiment, the case where the inclined surface is covered with the covering sheet 5 has been described as an example. However, the present invention can also be applied to the case where the covering sheet 5 covers the horizontal plane.

(2) In this embodiment, the case where the covering sheet 5 adjacent in the left-right direction of the slope 4a is joined by the joining structure 6 has been described as an example, but the covering sheet 5 adjacent in the up-down direction of the slope 4a is used. It can also be joined by the joining structure 6. In this embodiment, the back side laminated members 7 and 12 are flat plates and the front side laminated member 8.13 is a leaf spring. However, the back side laminated members 7 and 12 are plate. The present invention can also be applied to the case where the spring is a spring and the front-side laminated member 8.13 is a flat plate. Furthermore, in this embodiment, the case where the surface-side laminated members 8 and 13 are curved plates or bent plates has been described as an example. However, the surface-side laminated members 8 and 13 can be formed into a plurality of folded plates. .

(3) In the first embodiment, the case where the fastening bolts 9a, 14a are inserted from the through holes 7a, 12a of the back side laminated members 7, 12 at the time of on-site assembly has been described as an example. The fastening bolts 9a and 14a can be fixed to the back-side laminated member by welding or the like with the fastening bolts 9a and 14a inserted in advance from the through holes 7a and 12a of the laminated members 7 and 12. In the fifth and sixth embodiments, the case where the fixing agent C is injected under pressure into the fixing bolt 10a of the joining structure 6 has been described as an example. However, the fixing bolt 15a of the fixing structure 11 is also fixed. The fixing agent C can be injected under pressure with the same structure as the bolt 10a.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Track 3 Subbase 4 Filling 4a Slope (ground surface)
4b glue shoulder 4c glue butt 5 covering sheet 5a edge 6 joint structure 7 back side laminated member 8 surface side laminated member 9 fastening member 9a fastening bolt 9b fastening nut 10 fixing member 10a fixing bolt 10b fixing nut 10d hole 10e fixing agent layer 10 g inlet 10 h outlet 11 fixing structure 12 back side laminated member 13 front side laminated member 14 fastening member 14a fastening bolt 14b fastening nut 15 fixing member 15a fixing bolt 15b fixing nut 15d hole 15e fixing agent layer 15f clearance adjustment part 15g Note Inlet 15h Discharge port A Covering area A ₁ Adjacent area A ₂ Edge area C Fixing agent

Claims (2)

A covering sheet joining structure for joining a covering sheet covering the ground surface on the ground surface,
A back-side laminated member that is laminated on the back of the edge of these adjacent covering sheets so as to close the gap between the adjacent covering sheets;
A surface-side laminated member laminated on the surface of the edge of these adjacent covering sheets so as to close the gap between the adjacent covering sheets;
A fastening member that fastens the front-side laminated member and the back-side laminated member so that an edge of the adjacent covering sheet is sandwiched between the front-side laminated member and the back-side laminated member,
A fixing member that removably fixes the back side laminated member and the front side laminated member to the ground surface;
The back side laminated member is a flat plate,
The surface-side laminated member is a leaf spring that applies an elastic force to the flat plate,
The fastening member is
Fastening bolts that pass through the through-holes of the back-side laminated member and the front-side laminated member so as to pass through the gap between the adjacent covering sheets,
A fastening nut fastened to the fastening bolt;
The fixing member is
Fixing bolts that pass through the through-holes of the back-side laminated member and the front-side laminated member and are fixed to the ground surface so as to pass through the gap between the adjacent covering sheets,
A fixing nut fastened to the fixing bolt;
A fixing agent layer for fixing the fixing bolt in a state filled between the hole on the ground surface and the fixing bolt;
The through-holes of the back-side laminated member and the through-holes of the front-side laminated member are arranged at intervals along the gap between the adjacent covering sheets;
Joint structure of the cover sheet you characterized. In the joining structure of the covering sheet according to claim 1 ,
The fixing bolt includes a discharge port for discharging the fixing agent injected into the fixing bolt to the outside of the fixing bolt;
Cover sheet joining structure characterized by the above.