JP5514846B2 - Simple lining board - Google Patents

Description

  The present invention relates to a simple lining plate for covering an upper portion of an excavation site, which is a structure used when temporarily recovering an excavated road surface and the like.

Conventionally, when newly burying water and sewage pipes, gas pipes, electric cables, etc., or when maintaining and checking these buried pipes and cables, water pipes are excavated to the required depth. Such as burial work is carried out.
By the way, excavation points such as road surfaces excavated for such burial work etc. are backfilled with sand, crushed stones, etc. from the road surface to a predetermined depth after the completion of construction, and the laid sand, crushed stones Temporary restoration pavement is carried out by applying asphalt compound material etc. on etc., so that the excavated place formed will be flush with the road surface so as not to hinder the road running of the vehicle and traffic of people Such measures are taken. And later, when sand, crushed stones, etc. spread over the excavation site with time elapses, the asphalt composite material of the temporary restoration pavement is peeled off, and then the asphalt composite material etc. The actual restoration paving work is being carried out at the location.

  That is, when this road is excavated on the road surface, there is a problem that it takes a lot of work time because it requires troublesome work to remove the asphalt composite material of the temporarily restored paving. In addition, most of the stripped asphalt mixture is discarded without being reused and must be disposed of as industrial waste, which is economically disadvantageous and adversely affecting the global environment. There was a problem that eco-performance could not be improved.

Therefore, in the past, a temporary restoration method has been provided in which temporary roadbed material is laid down on a backfill surface of an excavation site such as a road surface (see, for example, Patent Document 1).
In the temporary restoration method of Patent Document 1, the excavation mine is backfilled from the road surface height to a predetermined depth, the temporary roadbed material is spread on the backfill surface, and the spread temporary roadbed material and its periphery are covered with a mat. The mat is fixed by driving a pin outside the temporary roadbed material, and temporary restoration work is performed without using asphalt mix.

JP 2004-52410 A

  However, in the conventional temporary restoration method described above, a temporary roadbed material is placed on the backfill surface, the temporary roadbed material is covered with a mat, and the mat is fixed to the road surface with pins. Therefore, the mat may be damaged by a passing vehicle or the like, or the temporary roadbed material may be moved from the predetermined installation position, and the backfill material such as sand, crushed stone, etc. at the excavation site is passed through the temporary roadbed material. There was a possibility that it could not be fully pressed. Therefore, in the conventional temporary restoration method described above, the function of temporary restoration cannot be fully exhibited, the number of times of use is limited, and this restoration pavement work may be hindered. Therefore, the conventional temporary restoration method described above is used for relatively small excavation points provided on the shoulders of the road, etc., and is not used for roads with a lot of traffic through which many vehicles and people pass, and the usable range is narrow. There was a problem.

  The present invention has been made in view of such a situation, and the purpose of the present invention can be repeatedly used without temporarily using the asphalt mixture of temporarily restored pavement when temporarily recovering the excavated road surface. By reducing the amount of wastewater, the eco-performance can be improved and the construction period can be shortened, and the backfilling material at the excavation site can be sufficiently solidified until the restoration pavement is completed. It is in providing the simple lining board which can be performed.

  In order to solve the above-described problems of the prior art, the present invention is used when temporarily recovering an excavation site formed by excavating a road surface, on a backfill surface backfilled from the road surface to a predetermined depth. A plurality of lining plate bodies arranged side by side in the longitudinal direction and the width direction on the backfill surface, and a fastener at the center of these lining plate bodies Insertion side holes are provided, and side portions of the main body of the lining plate are provided with main body uneven portions, and each of the lining plate main bodies is opposed to the adjacent lining plate main body. The main body uneven portions are connected to each other in the longitudinal direction and the width direction of the road surface by being fitted to each other, and are fixed to the backfill surface by inserting the fastener into the insertion hole.

  Further, in the present invention, an end covering plate is disposed in at least one of the longitudinal direction and the width direction of the road surface corresponding to the opening size of the excavation site, and on the side portion of the end covering plate An end concavo-convex portion is provided, and the end lining plate is coupled to the lining plate main body by fitting the end concavo-convex portion to the main body concavo-convex portion of the covering plate main body. Yes.

Furthermore, in this invention, the sealing material is arrange | positioned between the side parts to which the said lining board main body and the said edge part lining board are connected.
And in this invention, the repair material is spread | wrapped around the said lining board main body and the said edge part lining board.

  As described above, the simple lining board according to the present invention is used when temporarily recovering an excavation site formed by excavating a road surface, and is installed on a backfill surface backfilled from the road surface to a predetermined depth. A plurality of lining plate bodies arranged side by side in the longitudinal direction and the width direction on the backfill surface, and insertion holes for inserting fasteners in the center of these lining plate bodies And a main body uneven portion is provided on each side of the lining plate main body, and each of the lining plate main bodies is opposed to the adjacent main concavo-convex portion of the lining plate main body. Are connected to each other in the longitudinal and width directions of the road surface, and fixed to the backfill surface by inserting the fastener into the insertion hole. Without using The road surface drilling location could be temporarily restored by using a lining plate body of the road surface and flush become thick circumference. In the subsequent restoration, it is not necessary to peel off the asphalt mixture, and it is only necessary to remove the main body of the lining plate installed on the backfill surface of the excavation site. The construction period can be shortened. And since the simple lining board of this invention can be used repeatedly many times, the quantity of industrial waste can be reduced and eco-performance can be improved.

  Furthermore, since the simple lining board of the present invention is firmly fixed in a state where it is positioned on the backfill surface of the excavation site, it does not move from a predetermined installation position by a passing vehicle, etc. The back-filling material such as sand and crushed stone at the excavation site can be sufficiently pressed through the plate main body, and the subsequent restoration paving work to be performed later can be performed reliably. Therefore, since the simple lining board of the present invention can be applied to roads, sidewalks and the like with a lot of traffic through which many vehicles and people pass, it has a wide range of use and excellent versatility. A structure suitable for construction can be provided.

  Further, in the present invention, an end covering plate is disposed in at least one of the longitudinal direction and the width direction of the road surface corresponding to the opening size of the excavation site, and on the side portion of the end covering plate An end concavo-convex portion is provided, and the end lining plate is coupled to the lining plate main body by fitting the end concavo-convex portion to the main body concavo-convex portion of the covering plate main body. Therefore, by placing the required number of end lining plates in the longitudinal direction and width direction of the road surface according to the opening size of the excavation site to be temporarily restored, the excavation sites formed in various sizes are backfilled. The entire surface can be covered with a simple lining plate, and the entire backfill material can be reliably pressed during the temporary restoration period.

Furthermore, in the present invention, since the sealing material is disposed between the side portions to which the lining plate main body and the end portion lining plate are connected, the lining plate main body and the end portion lining to be connected are arranged. A gap is not generated between the plates, and a person or a vehicle can pass smoothly without tripping or generating abnormal noise when passing over the lining plate main body or the end lining plate. Moreover, it is possible to prevent rainwater or the like from flowing between the lining plate body and the end lining plate more than necessary into the backfill material at the excavation site.
Further, in the present invention, since the repair material is laid around the lining plate body and the end lining plate, the lining plate body and the end lining plate are more reliably positioned in a predetermined position. It can hold | maintain and can prevent moving a lining board main body and an edge part lining board from a predetermined installation position more by the vehicle etc. which pass.

It is a top view which shows the simple lining board which concerns on embodiment of this invention. It is the sectional view on the AA line of FIG. It is a side view which shows the state which attached the sealing material to the side part of the lining board main body and end part lining board which comprise the simple lining board of embodiment of this invention. It is a longitudinal cross-sectional view which shows the state which installed the simple lining board of embodiment of this invention on the backfilling surface of an excavation mine at the time of temporary restoration. It is a longitudinal cross-sectional view which shows the state which buried the backfill material from the road surface to the predetermined depth in the excavated mine. It is a longitudinal cross-sectional view which shows the state which removed the simple lining board of embodiment of this invention, and gave the asphalt compound material at the time of this restoration | restoration.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
1 to 4 show a simple lining board according to an embodiment of the present invention, FIG. 1 is a plan view of the simple lining board, and FIG. 2 is a cross-sectional view taken along line AA in FIG. 3 is a side view of the end cover plate to which the sealing material is attached, and FIG. 4 is a cross-sectional view of the simple cover plate installed on the backfill surface of the excavation mine.

  The simple lining board 1 of this embodiment is a structure used when temporarily recovering an excavation pit at an excavation site formed by excavating the inside of a road surface in a vertical pile shape. That is, when newly burying water and sewage pipes, gas pipes, electric cables, etc., or when maintaining and inspecting such buried pipes, cables, etc., excavate the road surface to the required depth, etc. However, after the completion of the burial work, etc., the temporary excavation mine should be flush with the road surface so that it will not hinder the road running of the vehicle or traffic of people. Restoration pavement is given. In the temporary restoration pavement of this embodiment, a predetermined amount of sand, crushed stone, or the like as backfill material is put into the excavated mine of the excavated road surface to backfill to a predetermined depth from the road surface, and backfill of these sand, crushed stone, etc. There is a construction in which a simple lining board 1 having a function of pressing sand, crushed stones, and the like is installed on the surface so as to be flush with the road surface. And later, when sand, crushed stones, etc. laid down in the excavation mine are pressed and stabilized through the simple lining plate 1 over time, the simple lining plate 1 is removed, and then the asphalt mixture, etc. It is used to perform the main restoration pavement of the excavation mine and surrounding areas.

  For this reason, since the simple lining board 1 of this embodiment covers the whole upper part of the excavation mine 3 formed in the ground of the road surface 2, as shown in FIGS. 1-4, it is the magnitude | size corresponding to an opening area. It is set and arranged side by side in the longitudinal direction L and the width direction W of the road surface 2 on the backfill surface 4a of the backfill material 4 backfilled from the road surface 2 to a predetermined depth by being put into the excavation mine 3. A plurality of lining plate main bodies 11 and end lining plates 21 are provided. In the temporary restoration pavement of the present embodiment, three lining board main bodies 11 are arranged in the longitudinal direction L and two are arranged in the width direction W, and the end lining boards 21 are arranged in the longitudinal direction L of the road surface 2 and It arrange | positions corresponding to the installation number of the lining board main bodies 11 only in the one side of the width direction W. FIG. Moreover, the thickness of the lining board main body 11 and the edge part lining board 21 which comprise the simple lining board 1 of this embodiment is the road surface 2 in the state installed on the backfilling surface 4a of the backfilling material 4. FIG. It is formed in the size which becomes almost flush.

The lining board main body 11 of this embodiment is formed using a 30 cm square or a 40 cm square square board as an example. As shown in FIGS. 1 to 4, an insertion hole 13 into which an anchor bolt (fastener) 12 is inserted is provided in the center portion of each lining plate main body 11 in the thickness direction. These insertion holes 13 are formed in a size and shape that can accommodate the shaft portion and the head portion of the anchor bolt 12, and the head portion of the inserted anchor bolt 12 extends from the upper surface of the lining plate main body 11. It is configured not to protrude. On the other hand, the shaft portion of the anchor bolt 12 is formed to be longer than the thickness of the cover plate main body 11, and the tip end of the shaft portion of the anchor bolt 12 inserted into the insertion hole 13 protrudes from the lower surface of the cover plate main body 11. The back-filling surface 4a of the back-filling material 4 is engaged.
In addition, a plurality of main body uneven portions 14 and 15 are formed in a comb-tooth shape along the longitudinal direction L and the width direction W of the road surface 2 on the side portions of the respective lining plate main bodies 11. 14 and 15 are alternately provided with a fixed size. Moreover, the main body uneven portions 14 and 15 are provided on all sides of the lining plate main body 11 according to the installation position, or two or three sides of the four side portions of the lining plate main body 11. Provided in the department. The main body uneven portions 14 and 15 are not limited to a rectangular shape, and may be a corrugated shape, or may be a single curved protrusion or depression.

  Therefore, each of the lining board main bodies 11 is connected to each other in the longitudinal direction L and the width direction W of the road surface 2 by fitting the opposing main body concavo-convex parts 14 and 15 of the adjacent lining board main bodies 11 to each other. They are arranged side by side so as not to move, and are fixed integrally at a predetermined position on the backfill surface 4 a by inserting the anchor bolts 12 into the insertion holes 13.

  On the other hand, as shown in FIGS. 1 to 4, the end cover plate 21 of the present embodiment corresponds to the opening size of the excavation pit 3, and the one side in the longitudinal direction L and the width direction W of the road surface 2 (FIG. 1). In the lower side and the right side). As an example, the end lining plate 21 is formed using a narrow rectangular plate of 30 × 10 cm (30 × 20 cm) or 40 × 10 cm (40 × 20 cm), and the length of the lining plate main body 11 is set. It corresponds. Further, on one side of each end covering plate 21, a plurality of end uneven portions 22 and 23 are formed in a comb shape along the longitudinal direction L and the width direction W of the road surface 2, respectively. The end uneven portions 22 and 23 are alternately provided with the same size and interval as the main body uneven portions 14 and 15. Note that the end uneven portions 22 and 23 are not limited to a rectangular shape corresponding to the main body uneven portions 14 and 15, but may be a corrugated shape, and may be a single curved protrusion or depression.

  Therefore, each of the end lining plates 21 is fitted with the opposing main body concavo-convex portions 14 and 15 of the adjacent lining plate main body 11 by fitting the end concavo-convex portions 22 and 23 with each other in the longitudinal direction L of the road surface 2 and It is arranged side by side with the end cover plate 21 so as not to be connected to each other in the width direction W, and is fixed integrally with the end cover plate 21 at a predetermined position on the backfill surface 4a. ing.

  The material of the lining plate body 11 and the end lining plate 21 constituting the simple lining plate 1 of the present embodiment is synthetic resin such as fiber reinforced plastic (FRP), vinyl chloride, rubber, concrete, casting, stainless steel. Steel can be used, and it can be selected depending on the traffic volume and environment of the road and sidewalk to be applied.

  Moreover, in the simple lining board 1 of this embodiment, as shown in FIG.1 and FIG.2, the rubber | gum which has elasticity between the side parts to which the lining board main body 11 and the edge part covering board 21 are connected. A sealing material 5 formed of a material, a synthetic resin material, or the like is disposed, and by this sealing material 5, between the side portions of the two lining plate main bodies 11 to be connected, or the lining plate main body 11 to be connected and the end portions. It is comprised so that a clearance gap may not arise between side parts with the lining board 21. FIG. As shown in FIG. 3, the sealing material 5 is attached with an adhesive or the like along the uneven portions 14 and 15 and the end uneven portions 22 and 23 on the side portions of the covering plate body 11 and the end covering plate 21. It has been.

  Further, as shown in FIG. 1, a repair material 6 such as a room temperature composite asphalt is spread around the lining plate body 11 and the end lining plate 21 constituting the simple lining plate 1 of the present embodiment. ing. The repair material 6 fills a gap formed between the simple lining plate 1 installed on the backfill surface 4a in the excavation mine 3 and the inner peripheral wall in the excavation mine 3, and the lining plate main body 11 and the end portion It is used to hold the lining plate 21 in a predetermined position more reliably. Therefore, the repair material 6 does not need to be used when no gap is generated between the simple lining plate 1 and the inner peripheral wall in the excavation pit 3.

Next, a method for temporarily recovering using the simple lining plate 1 according to the embodiment of the present invention will be described. First, when embedding water and sewage pipes, gas pipes, etc., or inspecting existing water and sewage pipes and gas pipes, cut the pavement part of the road surface 2 at the installation location of these pipes, The part is peeled off and the ground is excavated to a necessary depth to form the excavation pit 3. Then, the excavation pit 3 is used to embed water and sewage pipes and gas pipes, or to inspect existing water and sewage and gas pipes.
Next, after completion of the construction, etc., a backfill material 4 such as sand and crushed stone is introduced from above the excavated excavation mine 3 to backfill the road surface 2 to a depth excluding the thickness of the pavement and by rolling. The backfill surface 4a is flattened (see FIG. 5). Subsequently, the main body through the sealing material 5 while the plurality of lining board main bodies 11 and the end lining board 21 of the simple lining board 1 conveyed to the excavation mine 3 are installed at predetermined positions on the backfill surface 4a. By fitting the concavo-convex portions 14 and 15 and the end concavo-convex portions 22 and 23 to each other, the adjacent lining plate main bodies 11, and the lining plate main body 11 and the end lining plate 21 are connected. After that, if the anchor bolt 12 is inserted into the insertion hole 12 of each lining plate main body 11 and engaged with the backfill material 4, the simple lining plate 1 is flush with the road surface 2 around the excavation mine 3. In this state, it is fixed to the backfill surface 4a, and the temporary restoration pavement is completed (see FIG. 4). At this time, it is possible to fill a gap with the inner peripheral wall of the excavation pit 3 by applying the repair material 6 around the lining plate main body 11 and the end lining plate 21 of the simple lining plate 1 as necessary. It is. In addition, the thickness of the lining board main body 11 and the edge part lining board 21 to be used is equivalent to the thickness of the pavement part prescribed | regulated in this restoration pavement construction.

In addition, when the predetermined period has elapsed after the temporary restoration paving described above, when performing the actual restoration paving, all the anchor bolts 12 are extracted from the backfilling material 4 and the insertion holes 12 of the lining board main body 11, The concavo-convex portions 14 and 15 of the lining plate main body 11 and the end concavo-convex portions 22 and 23 of the end lining plate 21 are respectively disconnected to release the mutual connection, and the simple lining plate 1 is removed from the excavation pit 3. It removes more and the backfill surface 4a of the backfilling material 4 is exposed. Until the actual restoration pavement, the backfilling material 4 of the excavation mine 3 is pressed and compacted through the simple lining plate 1 by the weight of the vehicle or person passing by.
Next, if the asphalt composite material 7 is applied to the backfill surface 4a of the backfill material 4 located in the excavation mine 3 or if necessary, the asphalt mixture 7 is applied to the surrounding area of the excavation mine 3 to complete the restoration paving (See FIG. 6).

  If temporary restoration is performed using the simple lining plate 1 of the present embodiment configured in this way, the upper surface of the excavation pit 3 is surrounded by a road surface without using asphalt mixture or the like necessary in the conventional temporary restoration method. Temporary restoration pavement can be performed flush with 2 and quickly. Further, in the actual restoration to be performed later, it is not necessary to peel off the asphalt mixture or the like, and the restoration can be performed only by removing the lining board main body 11 and the end lining board 21 installed on the backfill surface 4a of the excavation mine 3. Pavement work can be performed and the construction period can be greatly shortened. Moreover, the simple lining board 1 of the present embodiment can be reused many times, so that the work cost and the material cost at the construction site can be reduced, and the eco-performance can be improved by reducing the discharge amount of industrial waste. it can.

  In addition, the simplified lining board 1 of the present embodiment includes the lining board main body 11 and the end lining board 21 by fitting the main body concavo-convex parts 14 and 15 and the end concavo-convex parts 22 and 23 and using the anchor bolts 12. Is fixed in a state of being positioned on the backfill surface 4a of the excavation mine 3, so that the lining plate main body 11 and the end cover are not moved from a predetermined position of the backfill surface 4a by a passing vehicle or the like. The backfill material 4 in the excavation mine 3 can be sufficiently pressed through the plate 21 and the restoration paving work can be surely performed, and the roads and sidewalks with a large amount of traffic through which many vehicles and people pass. Etc.

While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.
For example, in the simple lining board 1 of the above-described embodiment, the end lining board 21 is arranged in the longitudinal direction L and the width direction W of the road surface 2. You may employ | adopt the structure that the edge part covering board 21 is arrange | positioned in any one of the direction L and the width direction W, or both. Further, the number, size, and shape of the lining plate main body 11 and the end lining plate 21 can be appropriately selected according to the opening area and shape of the excavation pit 3. Furthermore, the repair material 6 may not be provided around the lining board main body 11 and the end lining board 21 depending on the road and sidewalk traffic to be applied.

DESCRIPTION OF SYMBOLS 1 Simple lining board 2 Road surface 3 Excavation pit 4 Backfilling material 4a Backfilling surface 5 Sealing material 6 Repair material 11 Backing board main body 12 Anchor bolt (fastener)
13 Insertion holes 14 and 15 Main body uneven portion 21 End cover plates 22 and 23 End uneven portion

Claims (4)

It is used when temporarily recovering excavation points formed by excavating a road surface, and is a simple lining board installed on a backfill surface backfilled to a predetermined depth from the road surface,
Provided with a plurality of lining plate main bodies arranged side by side in the longitudinal direction and the width direction on the backfill surface, the center portion of these lining plate main bodies is provided with an insertion hole for inserting a fastener, and On the side of the lining plate main body, there are provided main body uneven parts,
Each of the lining board main bodies is connected in the longitudinal direction and the width direction of the road surface by fitting the opposing main body concavo-convex parts of the adjacent lining board main bodies together, and the fasteners are A simple lining board characterized by being fixed to the backfill surface by being inserted into an insertion hole.   At least one of the longitudinal direction and the width direction of the road surface is provided with an end covering plate corresponding to the opening size of the excavation site, and an end uneven portion is provided on a side portion of the end covering plate. The end lining plate is connected to the lining plate body by fitting the end concavo-convex portion to the body concavo-convex portion of the lining plate main body. The simple lining board according to claim 1.   The simple lining board according to claim 2, wherein a sealing material is disposed between side parts to which the lining board main body and the end part lining board are connected. The simple lining board according to claim 2 or 3, wherein a repair material is spread around the lining board main body and the end lining board.

Images