JP4931949B2 - Road surface temporary restoration member and road surface temporary restoration method - Google Patents

Description

  The present invention relates to a lining member for temporarily restoring a road surface when excavating the road surface and performing gas, water, sewage and other pipe work, and a road surface temporary restoration method using the lining member. is there.

  Groove excavation is carried out in piping work to bury new pipes on the road surface, temporary piping work and main piping work when it is necessary to repair or replace already buried gas, water, sewage pipes, etc. However, once excavated trenches are backfilled once in each process (usually for one day's work), temporary asphalt pavement (temporary restoration work) is provided on the backfill surface to prevent hindrance to vehicle running and walking. It is something that has been given.

  At the end of the piping work, all the asphalt pavement of the temporary restoration work is removed, and this restoration pavement is performed.

  Thus, the asphalt used in the temporary restoration work eventually becomes industrial waste, and temporary paving in the temporary restoration work is not preferable from the viewpoint of efficiency of construction, resource saving, environmental problems, and the like.

  As a countermeasure, it has been proposed to use a temporary restoration member instead of temporary paving. For example, in Patent Document 1 (Japanese Patent Laid-Open No. 10-37113), a pressing member and a rubber mat are employed as a temporary restoration member, and a hollow rod-shaped body is substantially parallel to the excavation road surface (pavement removal surface) at a predetermined interval. A temporary restoration road surface is disclosed in which a pressing member connected in parallel with the state is placed and a rubber mat wider than the excavation road surface width is placed thereon.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 2004-52410) employs a simulated roadbed material and a rubber mat as temporary restoration members, the simulated roadbed material is formed of waste plastic, and a rubber mat is laid on the simulated roadbed material. It is what.

JP-A-10-37113. Japanese Patent Application Laid-Open No. 2004-52410.

  In the construction method using the conventional lining member for temporary restoration, as disclosed in Patent Documents 1 and 2, it is a dual structure of a pressing member / simulated roadbed material and a rubber mat, and the vehicle on the temporary restoration road surface In traveling, the weight of the vehicle is received by the pressing member / simulated roadbed material, so there is no particular problem, but the structure of the pressing member is complicated, and the simulated roadbed material also requires a corresponding production cost. There is also a cost problem.

  In construction, it is necessary to make the excavation width correspond to the width of the pressing member and simulated roadbed material, and in backfilling, it is necessary to backfill by a thickness corresponding to the thickness of the rolling compactor and simulated roadbed body. Even if the return height is high or low, a step is generated, which is problematic in terms of workability.

  In addition, when the vehicle travels in a temporarily restored state, the backfilled earth and sand are often crushed by the vehicle weight and subsided. If a step occurs on the temporarily restored road surface due to the subsidence, there is also a problem that the vehicle becomes an obstacle to comfortable driving.

  Therefore, the present invention proposes a new road surface temporary restoration member that simplifies the construction by adopting a simple temporary restoration member and is less likely to cause obstacles to vehicle travel, and a road surface temporary restoration method using the member. is there.

The temporary road surface restoration member according to the present invention (Claims 1, 10, and 12) includes a lining mat, a slip prevention pin, a retaining pin, a fastening body, and a fixing pin. The central thick part is formed of a rectangular rubber plate or a triangular rubber plate or other multi-sided rubber plate having appropriate rigidity, and a thick central part corresponding to the excavation shape of the road surface is provided to provide a thick central part. A thin side is formed in a shape that folds the back surface through a step to provide a thin side portion, and a pin hole penetrating the front and back is provided at an appropriate location in the central thick portion near the corner. The slip prevention pin is cylindrical and is inserted into the pin hole of the lining mat, and has a length that appropriately protrudes from the bottom surface of the lining mat at the time of insertion, and the retaining pin is the slip prevention pin. The length that is inserted into the cylinder part of the tube and protrudes appropriately below the misalignment pin when inserted. The fastening body is formed by protruding a locking projection to be mounted on the pin hole of the lining mat on the base plate portion having an appropriate shape, and providing a through hole at an appropriate location. However, it can be driven through the through hole of the fastening body.

  Further, the road surface temporary restoration method according to the present invention (Claim 16) is a road surface temporary restoration method for excavating a paved road surface to perform predetermined construction and temporarily recovering the excavated part. After backfilling, the lining mat is laid so as to cover the backfilling surface so that the side thin edge is located on the paved road surface, and the cylindrical slip prevention pin is placed in the pin hole, and the bottom is lining Drive into the backfill soil so that it protrudes appropriately from the bottom of the mat, and squeeze the stopper pin into the backfill soil so that the bottom part protrudes appropriately from the bottom end of the stop pin. The mat is fixed.

  Furthermore, the road surface temporary restoration method according to the present invention (Claim 17) employs a fastening body and a fixing pin for fixing the lining mat in the road surface temporary restoration method, and on the lower surface of the adjacent lining mat, Place the fixing body, attach the locking projection to the pin hole and remove the fixed pin from the through hole of the fixing body that protrudes on the excavation ground outside the backfill range where only the pavement surface is removed And the lining mat is fixed.

  Therefore, after excavating the paved road surface and performing the predetermined construction, the excavation part is backfilled to near the road surface for temporary restoration, and then corresponding to the shape of the excavation groove (planar shape) Covering the excavation groove by connecting a lining mat of a predetermined shape and size alone or linked, in particular, the side thin part is positioned on the paved road surface, the central thick part is positioned above the backfilling point, Insert the stopper pins and retaining pins back into the soil to fix the lining mat, or attach the locking protrusions of the fixing body to the pin holes of the lining mat to fix the fixing body and lining mat. By connecting and fixing the fastening body with a fixing pin, a temporary restoration of the backfill portion is performed.

  Further, in the case of adopting a slip-off prevention pin and a retaining pin as in the invention of claim 16 for fixing the lining mat, the slip-off prevention pin is driven thickly and shallowly, and is easy to drive and laterally. Even if this force is applied, sufficient strength is provided. Moreover, since the retaining pin has a small diameter, it can be driven deeply easily.

  Further, when the fastening body and the fixing pin are employed as in the invention of claim 17, the locking protrusion is attached to the pin hole, and the fixing pin is driven into the non-excavation portion instead of the backfill portion of the excavation groove. The lining mat is firmly fixed.

  Further, the road surface temporary restoration work member according to the present invention (Claim 15) corresponds to the road surface excavation width and also corresponds to the central thick part shape in the lining mat according to Claims 1 to 6 having various dimensions and shapes. It is composed of a plurality of ruler plates formed in a shape, and the ruler plate is laid and arranged in accordance with the shape of the excavation groove before digging the road surface, and laid on the road surface according to the ruler plate Cut the surface and excavate the groove, and use the lining mat corresponding to the ruler plate to realize the temporary restoration of the road surface. In the temporary restoration work of the road surface in parallel with the ruler plate corresponding to the shape of the excavated groove The shape and dimension of the lining mat to be used are determined, and the backfill portion can be reliably covered with the lining mat.

  Further, regarding the lining mat, when the thin side portions are provided at the four peripheral edges of the lining mat (Claim 2), the lining mat is mainly used as a single body or an auxiliary lining mat for temporarily recovering the excavation hole.

Further, the lining mat according to claim 3 is provided with a thin side portion at the base edge and the apex portion of the triangular lining mat, and is adapted to cope with a case where the excavation groove is bent and excavated. It is.

  Further, the covering mat according to claim 4 is provided with a side thin part at an appropriate peripheral edge of the covering mat, and a continuous protrusion corresponding to the side thin part lower gap shape on the peripheral edge not forming the side thin part. And is used as an auxiliary lining mat for the lining mat according to claim 2.

  Further, the lining mat according to claim 5 is an elongated rectangle as a whole, the central thick part corresponds to the width of the road surface excavation groove, and provided with a connecting protrusion that protrudes the lower part on one end face, The other end face is provided with a connecting recess corresponding to the connecting protrusion, and the connecting protrusion is fitted to the connecting recess of the adjacent covering mat to integrally connect the covering mats in tandem. Used for temporary restoration work in the case of long excavation grooves.

  The lining mat according to claim 6 is provided with a plurality of shallow concave portions parallel to the side edges on the lower surface of the central thick portion, and the backfilled portion is rolled by running the vehicle after temporary restoration, Even if the central thickness portion of the backfilling sinks due to the rolling pressure, the concave part formed on the back surface of the lining mat is curved so that the lower part bulges easily and adapts to the backfilling surface. There will be no hindrance to vehicle driving.

  Further, the lining mat according to claims 7 and 8 is provided with a reinforcing metal mesh member inside, or formed of a hard rubber material on the front surface side, and has a two-layer structure of a slightly soft rubber material on the back surface side. Thus, the durability of the lining mat is improved by reinforcing.

  Furthermore, the lining mat according to claim 9 is formed by forming a small protrusion, a narrow protrusion or a narrow groove on the surface to provide a non-slip function, so that a safe walking on the restoration road surface (lining mat) can be performed. It is intended.

  In addition, when the slip prevention pin and the retaining pin are adopted, the upper part of the pin hole and the head shape of both pins, especially the head shape of the slip stopper pin and the retaining pin, are fixed to the top surface of the lining mat when inserted. When the vehicle is formed in a non-protruding state and has a size having a sufficient plane area to catch the weight of the traveling vehicle (claim 11), the back-up surface is simultaneously depressed by the vehicle traveling after temporary restoration. Both pins also receive sufficient vehicle weight and are sunk together with the downward bulging of the lining mat and do not protrude from the upper surface of the lining mat.

  In addition, a fastening body provided with a protruding projection to be fitted to each pin hole of the adjacent lining mat when a predetermined adjacent lining mat is continued at the edge portion on the base plate portion having an appropriate shape. When employed (claim 19), the adjacent lining mats are integrated and fixed, and the entire lining mat resists even when the vehicle travels, thereby preventing the mat from being displaced.

  The present invention is as described above, and in the temporary restoration work of the pavement road surface, it does not require a rolling element or a simulated roadbed body as in the conventional method, and can be further simplified in terms of cost and construction. In addition, it can flexibly cope with further rolling of the backfill earth and sand caused by running the vehicle after temporary restoration without causing any trouble. Furthermore, since the side thin part is projected on the pavement road surface, the backfill soil does not protrude.

The top view of the whole road surface shown to embodiment of this invention construction method (before construction). Figure (laying ruler plate) The figure (during road excavation) Fig. (Construction of lining mat) Explanatory drawing of the member for the road surface temporary restoration (whole mat | matte of basic shape). Sectional drawing of the lining mat | matte. The perspective view of the principal part of each said member. Explanatory drawing of an identification board. Sectional drawing of the temporary restoration part of the construction method of the present invention (using a fastening body). The principal part enlarged view of FIG. The another example figure of the same attachment body. Figure. Sectional drawing of the temporary restoration part of the construction method of the present invention (use of a locking pin and a retaining pin). The perspective view of another example of the same lining mat. Explanatory drawing of the mat (cross-sectional view using a metal mesh member). Explanatory drawing of the mat (cross-sectional view of a two-layer structure). Sectional drawing of another example of the same mat.

  Next, an embodiment of the present invention will be described. The subject of the present invention is a temporary restoration work (first embodiment) when a long excavation groove C is excavated on the road surface B, such as a replacement work of the buried pipe A illustrated in FIG. This is intended for temporary restoration work (second embodiment) when excavating the excavation hole E for replacement / installation of branch pipes and installation of lead-in pipes to the building D.

  The road surface temporary restoration member used in the first embodiment includes a lining mat 1 (1a, 1b, 1c...), A misalignment pin 2, a retaining pin 3, and fastening bodies 4 and 4a. The fixing pin 5 and the ruler plate 6 (6a, 6b, 6c...) Are configured.

  The lining mat 1 is a rectangular rubber plate having appropriate flexibility and robustness that has been used as a conventional road surface mat, and is basically from an excavation groove B excavated in the construction of a normal buried pipe A. It is a wide and long rectangular shape, and the central thick part 11 is thickened and formed in an upwardly bulging shape across the long side ends, and the side thin parts 12 are gradually formed through steps. It is formed in a thin shape, and a concave surface 13 is formed by slightly curving upwards between the sides on the back surface (back surface of the central thick portion), and the entire direction crossing the excavation groove C bulges upward.

  Further, the surface of the lining mat 1 is formed on the rough surface 14 with a fine protrusion, a ridge, or a narrow groove, and the concave portion 15 having a shallow semicircular cross section parallel to the side is formed on the back surface. A plurality of pin holes 16 are provided, and pin holes 16 penetrating the front and back are provided at appropriate places. In particular, the edge 17 is formed in an acute angle shape with few steps.

  Further, a connecting protrusion 18 having a lower portion protruding is provided on one end face, and a connecting recess 19 corresponding to the connecting protrusion 18 is provided on the other end face.

  The lining mat 1 is provided with the above basic configuration, and a plurality of lining mats 1 are formed in accordance with predetermined dimensions and shapes. The long lining mat 1a and the short covering are provided so as to correspond to the groove length of the excavation groove C. In addition to the rectangular mat of the work mat 1b, as a modified lining mat for covering the place where the excavation direction is changed, the trapezoidal lining mat 1c, the triangular lining mat 1d, and the appropriate range of the corner portion of the excavation groove C are covered. An arrow-type lining mat 1e having a shape is formed, and each lining mat 1 substantially coincides with each ruler plate 6 (6a, 6b, 6c, 6d) that matches the shape of the excavation groove C described later (the ruler plate). A central thick portion 11 having a width slightly narrower than the width direction) is provided.

  Of course, it is not always necessary to prepare the deformed lining mats 1c, 1d, and 1e. For example, by preparing several types of triangular lining mats 1d having different hypotenuse angles and combining them, various bending excavation grooves can be formed. The same can be said for the trapezoidal lining mat 1c and the arrow type lining mat 1e.

The ruler plate 6 is, for example, a predetermined excavation groove width (two types of reference widths 600 mm and 400 mm), each of which has a excavation groove length of 2 m and corresponds to the long lining mat 1a (FIG. 8a), Short ruler plate 6b (FIG. 8B) corresponding to a plurality of short lining mats 1b having different digging groove lengths of 1 m, 0.5 m, etc., and a trapezoidal cover used for a portion to be further bent and excavated A trapezoidal ruler plate 6c corresponding to the work mat 1c and the triangular lining mat 1d, and an arrow ruler plate 6d corresponding to the triangular lining mat 1d and the arrow lining mat 1e are formed (FIG. 8C). ).

  The combinations of the trapezoidal lining mat 1c, the triangular lining mat 1d, the arrow type lining mat 1e, the trapezoidal ruler plate 6c, and the arrow type ruler plate 1d are as shown in FIGS. is there.

  Further, as a modification of the lining mat 1 used for the excavation groove C, a groove end lining mat 1A having a connecting projection 18 but no connecting recess 19, or conversely a connecting recess having no connecting projection 18 is provided. A groove end covering mat or the like having 19 is formed in advance, and the groove end covering mat is used for the groove end portion.

  The lining mat 1 has a flat upper surface, the central thick portion 11 is formed in a bulging shape downward, and the thin side portions 12 on both sides are formed on an inclined surface only at the tip (side end) portion. But it ’s okay.

  Further, the pin hole 16 is provided in the range of the excavation groove C, and an upper portion of the pin hole 16 is engaged with heads 21 and 31 of a later-described misalignment pin 2 and retainer pin 3 and fixing members 4 and 4a. The head 42a of the stop protrusion 42 is housed in an embedded state and has a shape with a sufficient exposed area.

  Further, the misalignment pin 2 is formed in a cylindrical shape, and the head portion 21 has a trumpet-shaped opening shape corresponding to the upper portion of the pin hole 16, and its entire length is inserted into the pin hole 16 of the lining mat 1. , A length that appropriately protrudes from the bottom surface of the lining mat 1 at the time of insertion (a length sufficient to prevent the lining mat 1 from being laterally displaced with respect to a force acting on the lateral displacement received from the vehicle when the vehicle is traveling, as described later, In addition, the length is such that it has a length that can be easily driven into the rolled backfill soil.

  The retaining pin 3 is inserted into the cylindrical portion of the misalignment pin 2, and the head 31 fits in the head 21 of the misalignment pin 2 when being inserted, and the lower end of the misalignment pin 2. It is provided with a full length that protrudes appropriately.

  The fixing body 4 is formed by vertically projecting locking projections 42 on the upper surface of the base plate portion 41, and through holes 43 are formed at predetermined locations. The protruding position of the locking projection 42 is as follows. Provided so as to correspond to the distance between the pin holes 16 of the adjacent lining mat 1 in a state where the connecting projection 18 and the connecting recess 19 of the lining mat 1 are fitted in order to be connected along the excavation groove C described later. It is.

  Further, the through hole 43 is provided at a position projecting laterally from the locking projection 42 in a range where the pavement removal portion of the road surface B when the excavation groove C is excavated and the non-excavation ground (exposed ground F). The fixing pin 5 has such a length as to have a strength capable of sufficiently fixing the covering mat 1 when driven into the exposed ground F from the through hole 43.

  In addition, as illustrated in FIG. 12 as another member of the fastening body, the fastening body 4a in which the locking projections 42 are projected in a row on the upper surface of the rectangular base plate portion 41a and the through hole 43 is not provided is also provided. Can be adopted.

  However, the road surface temporary restoration method (first embodiment) according to the present invention performs the predetermined construction such as excavating the paved road surface B (excavation groove C) and replacing or installing the pipe A in the excavation groove. The temporary restoration member is used for temporary restoration so that the excavation groove C does not become an obstacle to vehicle travel or pedestrians at the end of a day of construction.

  Specifically, in order to excavate the excavation groove C, it is necessary to first peel off the paved road surface B. At the time of this peeling operation, a cut is made with a road surface cutter. When the plate 6 is aligned with the excavation groove C, especially when the excavation groove C is aligned with the embedding position of the embedding pipe A and it is necessary to bend and excavate the groove, the ruler plates 6 having different sizes and shapes are combined and arranged. Arranged and fixed above (FIG. 2), a road surface cutter is moved in accordance with the ruler plate on the road surface, a predetermined cut is made, the pavement surface is peeled off, and the exposed ground is dug down to the buried portion of the pipe A.

  Excavation groove C is excavated within the range where road surface B is peeled, leaving non-excavation portions F on both side edges (FIG. 3), and earth and sand (usually using only sand) G in excavation groove C during temporary restoration The backfill portion is covered with the above-mentioned lining mat 1 and is placed in a slightly raised state according to the shape of the concave surface 13 on the back surface of the lining mat 1.

  After the excavation groove C is backfilled with earth and sand G or the like, the backfill surface is covered with the lining mat 1, and in particular, the side thin portion 12 is positioned on the paved road surface B.

  In particular, when the backfill surface is covered with the lining mat 1, since the excavation groove C is excavated by combining the ruler plate 6, the ruler plates 6a, 6b, 6c used for the road surface cutter work are used. When the lining mats 1a, 1b, 1c,... Corresponding to the shapes and dimensions are used, the backfill excavation groove C is surely covered with the lining mat 1. That is, in the temporary restoration method using the lining mat 1, the use of the ruler plate 6 makes it possible to realize complete covering in a state where there is no gap or overlap between the mats.

  In other words, when the ruler plate 6 can be completely laid, it can be completely covered with the lining mat 1 at the time of temporary restoration. Therefore, when the excavation groove C is excavated, the combination of the ruler plates 6 is used as a lining. Determine the use of mat 1.

  The lining mat 1 laid so as to cover the backfill surface is integrally connected in a state where the connecting projections 18 and the connecting recesses 19 of the adjacent lining mats 1 are fitted, and the lining mat The fixing means 1 includes the case where the misalignment pin 2 and the retaining pin 3 are used, and the case where the fixing body 4 and the fixing pin 5 are used. The former is a lining mat located at the end of the backfilling place. 1 is used for fixing and other appropriate places, and the latter is used for connecting portions of adjacent lining mats 1.

  When using the slip prevention pin 2 and the retaining pin 3, the slip retaining pin 2 is driven into the backfill sand G from the pin hole 16, and the backstop pin 3 is backfilled from the cylindrical inside of the slip prevention pin 2. It is driven into H and the lining mat 1 is fixed. In addition, you may make it mount | wear with the blind cover body which block | closes the cylinder part of the slippage prevention pin 2 in the location recognized that the retaining pin 3 is unnecessary.

  When the fastening body 4 and the fixing pin 5 are used, the fastening body 4 is positioned on the lower surface of the adjacent lining mat 1, and each pin of the adjacent lining mat 1 is provided with the engaging protrusions 42 arranged in a row. The lining mat 1 attaches the fastening body 4 by inserting and fixing to the hole 16, positioning the protruding portion of the base plate portion 41 in the non-excavated portion F, and driving the fixing pin 5 through the through-hole 43. (See FIGS. 9 and 10).

  Further, in places where the running of the lining mat 1 is unlikely to occur, such as where the vehicle travels extremely little, the adjacent mats may be connected using the fastening body 4a.

  Thus, in the temporary restoration of the excavation groove C in the buried piping work, the excavation groove C is backfilled with earth and sand G and covered with the lining mat 1, and it is not necessary to use asphalt material for the temporary restoration. It has sufficient durability against running, and there is no need to lay a rolling element or simulated roadbed under the mat.

  Particularly in the fixing work of the lining mat 1, the large-diameter misalignment pin 2 is driven shallowly and the small-diameter retaining pin 3 is driven deeply, so that the lining mat has sufficient strength with easy construction. 1 can be fixed.

  Further, in the fixing work of the lining mat 1 using the fastening body 4, the adjacent lining mat 1 is coupled with the connection by the fitting of the connecting projection 18 and the connecting recess 19, and further, the covering covering adjacent by the fastening body 4 is used. Since the work mat 1 is coupled, the entire lining mat 1 can be integrated, and the lining mat 1 can be more effectively fixed.

  Furthermore, in the present invention, since the lining mat 1 is formed with the thin side portions 12, the edge 17 of the lining mat 1 is paved even when the central thick portion 11 is shifted to the subsidence state. The vehicle does not jump up from the road surface C, the vehicle traveling is not hindered, and the backfill earth and sand G does not protrude.

  Further, by forming the central thick portion 11 of the lining mat 1 into a bulging shape or by forming the concave strip portion 15 on the back surface of the central thick portion 11 of the lining mat 1, the lining mat of the vehicle after temporary restoration 1) Even when the backfilling earth and sand G is subjected to further rolling pressure and the backfilling earth and sand G sinks when traveling on 1, the problem derived from this settlement is solved by adopting this construction method. . Further, when it rains, the central thick portion 11 swells, so that rainwater does not stay on the lining mat 1.

  Further, when the misalignment pin 2 and the retaining pin 3 are employed, the head exposed area is correspondingly increased, so that when the vehicle weight due to vehicle travel is received, it is pressed downward together with the lining mat 1. That is, the pressure is reduced together with the central thick portion 11 of the lining mat 1 and the state is maintained, and even if the lining mat 1 sinks, it does not protrude from the upper surface.

  Further, when the fastening body 4 is employed, even if a force in the lateral displacement direction is applied to a part of the lining mats 1 due to the linking of the adjacent lining mats 1, the linked linings The mat 1 as a whole responds, and the durability increases.

  In this way, rolling of the backfill earth and sand is carried out by the vehicle running on the temporary restoration road surface (on the lining mat 1) until the main restoration, or a force in the displacement direction is applied. However, the vehicle was able to run safely without any trouble.

  Further, when the surface of the lining mat 1 is formed on the rough surface 14 to prevent slipping and the edge cross section of the both side thin portions 12 is formed into an acute angle shape, the mat is used particularly for temporary restoration of a sidewalk portion. The step of the side edge reduces the risk of pedestrians traveling and reduces the risk of slipping on the mat surface, thus realizing safe walking.

  Further, the road surface temporary restoration member used in the temporary restoration work (second embodiment) in the piping work for forming the excavation hole E instead of the long groove on the road surface B is the lining mats 1B and 1C and the first embodiment. And a combination of a locking pin 2 and a retaining pin 3 used in the same manner as described above, and a fixing body 4b and a fixing pin 5 illustrated in FIG.

The lining mat 1B is formed of the same material as the lining mat 1 described above, but is provided with side thin portions 12a on the four sides of the central thick portion 11a through a step, and on the surface. Is formed on the rough surface 14a (provided by forming small protrusions) with fine protrusions, protrusions or grooves, and the back surface is slightly bulged. Pin holes 16 that pass through the front and back are provided at the four corners of 11a.

  Further, the lining mat 1C used in connection with the lining mat 1B is provided with a side thin portion 12a similar to the lining mat 1B at the three peripheral edges, and at the peripheral edge where the side thin portions 12a are not formed. The continuous protrusion 111 corresponding to the lower gap shape of the side thin part 12a of the lining mat 1B is provided.

  The lining mat 1B has a two-layer structure in which a metal mesh member 112 is internally reinforced inside the central thick portion 11a, or a hard rubber material 113 is formed on the front surface side, and a soft rubber material 114 is formed on the back surface side. As mentioned above, the strength and durability are enhanced. Of course, the present invention can also be applied to the lining mats 1 and 1A of the first embodiment.

  Further, as shown in FIG. 11, the fastening body 4b has a locking projection 42b protruding on one side of the upper surface of the base plate portion 41b and a through hole 43a formed on the other side. The positional relationship between the portion 42 b and the through hole 43 a is the same as that of the locking protrusion 42 and the through hole 43 of the above-described fastening body 4.

  Thus, in the road surface temporary restoration method according to the second embodiment, a rectangular excavation hole E is excavated on the paved road surface B, the earth and sand G is backfilled in the excavation hole E after predetermined construction, and the backfill portion is covered with the above-described covering. When the excavation hole E is a single rectangular hole and covered with the work mats 1B and 1C, the backfilling portion is covered with one cover mat 1B, and the above-described misalignment pin 2 and retaining pin 3 are used. Then, the lining mat 1B is fixed, or is fixed by using the fixing body 4b and the fixing pin 5, and the fixing means (driving of the pin or the like) is the same as in the first embodiment.

  In addition, when the excavation hole E continuously excavates a short slot, as in the case of a lead-in pipe installed in the building D, if the above-mentioned one lining mat 1 cannot cover the backfill portion, continuous The lining mat 1C provided with the projecting protrusion 111 is used, the connecting protrusion 111 is positioned below the side thin portion 12a of the lining mat 1B, and the upper surface (antislip surface) is continuously flattened. In this way, the lining mats 1B and 1C are fixed. Of course, it is also possible to continuously lay the lining mat 1C.

1, 1A, 1B, 1C Lined mat 1a Long lined mat 1b Short lined mat 1c Trapezoid lined mat 1d Triangular lined mat 1e Arrow type lined mat 11, 11a Center thick part 111 Continuous protrusion 112 Metal Mesh member 113 Hard rubber material 114 Soft rubber material 12, 12a Thin side portion 13 Concave surface 14 Non-slip rough surface 15 Concave strip portion 16 Pin hole 17 Edge 18 Connecting protrusion 19 Connecting recess 2 Misalignment pin 21 Head 3 Retaining pin 31 Head 4, 4a, 4b Fastening body 41, 41a, 41b Base plate portion 42, 42a, 42b Locking projection 43, 43a Through hole 5 Fixing pin 6 Ruler plate 6a Long ruler 6b Short ruler plate 6c Trapezoidal ruler plate 6d Arrow type ruler plate A Buried pipe B Road surface C Excavation groove D Building E Excavation hole F Non-excavated part (exposed ground)
G earth and sand (backfill earth and sand)

Claims (20)

It is formed of a rectangular rubber plate or a triangular rubber plate or other multi-sided rubber plate with appropriate rigidity, and a thick central portion corresponding to the excavation shape of the road surface is formed to provide a central thick portion. Covering with a predetermined side that is thinly formed in a shape that folds the back surface through a step to provide a thin side, and a pin hole that penetrates the front and back at an appropriate location in the central thick part near the corner Road surface temporary restoration member made of mat. Rectangular lining formed by providing the lateral side thin portions to the four peripheral edges of the mat according to claim 1, wherein the road surface provisional restoration element. Claim 1 road temporary restoration member according to the base edge and apex angle portion of the lining mat formed by providing the side edge thin portion of the triangle. 4. The side lining mat is provided at an appropriate periphery of the lining mat, and a continuous projection corresponding to the side edge thin portion lower gap shape is provided at the periphery not forming the side edge thin part. road surface temporary restoration member.   A connecting projection having a lower portion projecting is provided on one side of an edge in a direction crossing the groove in the central thick portion of the lining mat, and a connecting recess corresponding to the connecting projection is provided on the other side. The road surface temporary restoration member according to claim 1 or 3.   The road surface temporary restoration member according to any one of claims 1, 2, 4, and 5, wherein the member is a long rectangle as a whole, and a plurality of shallow concave portions parallel to the long side edge are provided on the lower surface of the central thick portion. What Re of road temporary restoration member formed by interior reinforcing metal mesh member internally claims 1 to 6, wherein. Is formed on the surface side of a hard rubber material, the back side somewhat what Re of road temporary restoration member of claims 1 to 7, wherein comprising a two-layer structure of the rubber material soft. Small projections or fine protruding strip or to form a fine groove or the like formed by allowed have a non-slip function claims 1 to 7, wherein several Re of road temporary recovery member to the surface.   A lining mat according to any one of claims 1 to 9, and a cylindrical slip stopper that is inserted into a pin hole in the lining mat and has a length that appropriately protrudes from the bottom surface of the central portion of the lining mat at the time of insertion. A road surface temporary restoration member comprising a pin and a retaining pin that is inserted into a cylindrical portion of the misalignment pin and protrudes appropriately below the misalignment pin when being inserted.   The upper portion of the pin hole and the head shape of both pins are formed such that the heads of the slip prevention pin and the retaining pin are not protruded from the upper surface of the lining mat at the time of predetermined insertion. The road surface temporary restoration member according to claim 10, wherein the member is formed in a size having a sufficient plane area for receiving weight.   A locking projection to be mounted on a pin hole of the lining mat is provided on the lining mat according to any one of claims 1 to 9 and an appropriately shaped base plate portion, and a through hole is provided at an appropriate location. A road surface temporary restoration member comprising: a fastening body provided; and a fixing pin that can be driven through the through hole.   The lining mat according to any one of claims 1 to 9 and an appropriately shaped base plate portion, each of which is attached to a pin hole of the adjacent lining mat when the predetermined adjacent lining mat is continuous at the edge portion. A temporary road surface restoration member comprising a fastening body provided with a projecting locking projection.   A base plate portion is extended to the side of the vertical locking projections, and is provided with a fastening body provided with a through hole on the protruding surface, and a fixing pin that can be driven from the through hole. The road surface temporary restoration member according to claim 13.   The road surface temporary restoration work corresponding to the road excavation width and composed of a plurality of ruler plates formed in a shape corresponding to the central thick part shape in the lining mat of various sizes and shapes according to claims 1 to 6. Materials In the road surface temporary restoration method, which excavates the paved road surface and performs predetermined work, and temporarily recovers the excavated area, after the back of the excavated area is close to the road surface height, a rectangular rubber plate with appropriate rigidity is used. A thick central portion corresponding to the excavation shape of the road surface is formed to provide a thick central portion, and a predetermined side of the thick central portion is thinly formed so as to fold the back surface through a step. A covering mat with a thin hole and a pin hole penetrating the front and back at an appropriate place in the central thick part close to the four corners, and a backfill surface so that the side thin part end is located on the paved road surface. Lay the cover so that the cylindrical slip stopper pin is inserted into the back hole so that the lower part protrudes appropriately from the bottom of the lining mat, and the stopper pin is attached to the cylindrical portion of the stopper pin. Backfill so that the lower part protrudes appropriately from the lower end of the misalignment pin The road surface provisional recovery method, characterized in that it is formed by fixing the lining mat dedicated to in. In the road surface temporary restoration method, which excavates the paved road surface and performs predetermined work, and temporarily recovers the excavated area, after the back of the excavated area is close to the road surface height, a rectangular rubber plate with appropriate rigidity is used. A thick central portion corresponding to the excavation shape of the road surface is formed to provide a thick central portion, and a predetermined side of the thick central portion is thinly formed so as to fold the back surface through a step. A covering mat with a thin hole and a pin hole penetrating the front and back at an appropriate place in the central thick part close to the four corners, and a backfill surface so that the side thin part end is located on the paved road surface. Laying so that the locking projections that are installed in the pin holes of the lining mat are projected on the base plate portion of the appropriate shape and the through holes are provided at appropriate locations. Placed on the bottom surface of the mat and fitted with a locking projection in the pin hole, removing only the paved surface Range of road temporary restoration method, characterized by comprising fixing the lining mat fixing pin from hole drilling ground on the projecting position is not the fastening member is driven into soil back. When laying so as to cover the backfill surface so that the edge of the side thin part is located on the paved road surface, when the side thin part is located on the backfill surface, the edge that does not form the side thin part with a lining mat formed by providing a continuous設突portion corresponding to the side edges thin men lateral gap shape covering the surface backfill adjacent arranged, the continuously arranged protrusion of the lining mat other lining mat sides 18. The road surface temporary restoration method according to claim 16 or 17, wherein the road surface temporary restoration method is formed by inserting an adjacent lining mat under the thin portion.   On the backfill surface of the groove-shaped excavation site, lining mats having connecting recesses and connecting protrusions at both ends are connected in tandem and laid on the base plate portion on the lower surface of the adjacent lining mat. A fastening body in which locking projections projecting vertically at intervals are arranged, the locking projections of the fastening body are attached to the pin holes of the adjacent lining mat, and the adjacent lining mat is connected. The road surface temporary restoration construction method according to 16 or 17.   Prior to road surface excavation, the ruler plates according to claim 15 are laid side by side in accordance with the shape of the excavation groove, the road pavement surface is cut and groove excavation is performed in accordance with the ruler plate, and a lining mat corresponding to the ruler plate is used. The road surface temporary restoration method according to any one of claims 16 to 19.

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