JP3942152B2 - Road surface lining construction method - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a road surface lining construction method that can ensure safety during construction when excavating a groove in the ground (roadbed) of a road or the like to bury or repair a sewer pipe or the like. .
[0002]
[Prior art]
In construction that embeds sewer pipes in the ground such as roads and repairs the sewer pipes that are buried, excavation of the roadbed to form an open groove is performed. Often the day does not complete and continues for several days. In such a case, in order to ensure safety during construction stoppages such as at night, the upper opening of the cut groove is covered with a lining plate so that a pedestrian or the like can fall and a vehicle or the like can be transported.
[0003]
In this type of construction, a method as shown in FIGS. 5 and 6 is generally used. In the method shown in FIG. 5, the retaining piles 1 and 1 are driven on both sides of the cut groove A to be cut, and the uplifting material 3 and the cut beam 4 are provided to prevent the collapse of the natural ground. The receiving girder 6 is installed on the receiving pieces 5 and 5 attached to the upper and lower sides, and the covering plates 7 and 7 divided into a plurality of pieces are mounted thereon so as to be flush with the road surface a.
[0004]
Further, in the method of FIG. 6, the ground support portions 20 are provided on both sides of the cut groove A, and the girder receiving bases 9 and 9 are formed thereon, and the receiving girder 6 is erected thereon, and both sides of the cut groove A are formed. The earth retaining sheet piles 2 and 2 are driven in or built in, and the uplifting material 3 and the cut beam 4 are provided to prevent the collapse of the natural ground, and the lining plates 7 and 7 are flush with the road surface a on the receiving girder 6. It will be placed so that
[0005]
[Problems to be solved by the invention]
By the way, in this type of construction, it is often the case that the surrounding ground sinks in the middle of the construction, and on the contrary, the retaining pile 1 and the natural ground support 20 sink. In such a case, a level difference (level difference) occurs between the upper surface of the lining board 7 and the road surface a, and this may cause a problem in traffic and safety of pedestrians and cars.
[0006]
In such a case, for example, in the former case in which the lining plate 7 is supported by the retaining pile 1, the surrounding ground sinks and the road surface a is lower than the upper surface b of the lining plate 7 as shown in FIG. When it becomes, pavement material 9 such as correction asphalt is rubbed (laid) on the lining plate 7 and the road surface a where the level difference occurs, and the road surface a and the upper surface b of the lining plate 7 are gently inclined. I try to connect. In addition, as shown in FIG. 7 (b), when the earth retaining pile 1 sinks and the upper surface b of the lining board 7 is lower than the road surface a, a paddle for adjusting the height is used. The upper surface b of the lining plate 7 is disposed between the receiving beam 6 and the lining plate 7 or between the receiving beam 6 and the receiving piece 5 as shown by the chain line in FIG. The height of the lining plate 7 is adjusted so as to be flush with a. Further, substantially the same adjustment is performed in the latter case in which the lining plate 7 is supported by the natural ground support portion 20.
[0007]
In this way, in the conventional road surface lining, every time a lining plate such as nighttime is laid, the correction paving material 9 must be rubbed and the intermediary of the stuffed material must be carried out, and the construction is troublesome. A lot of labor is required, and the construction cost is increased accordingly.
[0008]
The present invention was made in order to solve the above-mentioned conventional problems, such as a jack whose height can be adjusted to the ground on the outer side (the ground side) of the earth retaining pile or the earth retaining pile, which supports the lining board. A road surface lining construction method that can be laid via a support means, and the step between the road surface and the top surface of the lining plate when laying the lining plate can be eliminated with a simple operation. It is something to be offered.
[0009]
[Means for Solving the Problems]
To achieve the above object, construction methods of claim 1 is a road lining construction methods, height adjustment and freely to the upper end of the earth retaining stakes are Da設on both sides of the cutting grooves of the base course and the top established a support having laid the受杆,受桁between support earth retaining piles facing the cutting grooves on both sides, to on the受杆so that the lower surface of the upper end and受桁of earth retaining pile respectively keep a proper distance The height of the lining plate is adjusted by installing a lining plate on these receiving girders and adjusting the height of the support.
[0010]
In addition, the construction method of claim 2 is a road surface lining construction method, and a ground support portion lower than the roadbed is formed on the ground pile side of the earth retaining sheet pile placed or built on both sides of the cut groove of the roadbed, this natural ground support, each support height adjustable and with and support with bridged the受杆the top, arranged at intervals along the longitudinal direction of the cutting grooves, facing each other across the cutting grooves By installing the girder in such a way that the upper end of the earth retaining sheet pile and the lower surface of the girder are kept apart, and placing the lining plate on the girder and adjusting the height of the support The height of the lining plate is adjusted.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show an embodiment of the construction in which the lining board is supported by the retaining pile (first embodiment), and FIGS. 3 and 4 show that the lining board is supported by the roadbed. The embodiment (2nd embodiment) of the construction which was made is shown.
[0012]
First, the first embodiment will be described. 1 and 2, A is an excavation groove formed for excavating a ground (roadbed) B such as a road to embed or repair a pipe or the like. The soil retaining piles 1 and 1 are driven along the longitudinal direction of the. Then, the earth retaining piles 1 and 1 on each side are joined together by the erection material 3, and a cut beam 4 is installed between the erection materials 3 and 3 on both sides to prevent the collapse of the natural ground.
[0013]
A receiving piece (bracket) 5 is fixed to the upper inner side (side facing the cut groove A) of the earth retaining pile 1, and a support body 10 whose height is adjustable is installed on the receiving piece 5. The support body 10 has a screw plate 13 screwed and erected on a base plate 11 which is detachably attached to the upper surface of the receiving piece 5 with bolts and nuts 12 and the like, and a screw plate 13 is provided at the upper end of the screw rod 13. It has a structure in which a square nut 14 for rotating the flange 13 with a spanner or the like is fixed, and the height of the screw flange 13 can be adjusted by rotating the screw flange 13.
[0014]
After installing the support 10, a receiving bar 15 made of channel material or the like is installed on the support 10, 10 installed on each side, and the receiving girder 6 of the lining plate 7 is stretched across the receiving bars 15, 15 on both sides. The cut grooves A are installed in parallel in the length direction at a predetermined interval. And, on the underside of the receiving girder 6, an anti-slip material 16 is attached to the lower surface of the receiving girder 16 in the vicinity of the inner side of the receiving rod 15 to prevent the receiving rod 15 from moving in the width direction (cross direction) of the cut groove A To do.
[0015]
Next, the lining plates 7 and 7 are disposed over the installed receiving girders 6 and 6. In this case, the mounting position of the receiving piece 5 is set in advance so that the upper surface b of the arranged lining plate 7 is substantially flush with the road surface a. It is better to keep a little interval.
[0016]
When the surrounding roadbed B sinks at the beginning or midway of the construction and the upper surface of the lining plate 7 becomes higher than the road surface a, the support 10 is shortened to lower the lining plate 7, and the upper surface b is the roadbed. Adjust so that it is flush with the upper surface (road surface) a of B. In addition, when the earth retaining pile 1 that has been laid down sinks as a whole and the upper surface of the lining plate 7 becomes lower than the road surface a, the supporting body 10 is extended to raise the lining plate 7, and the upper surface b is Adjust so that it is flush with the road surface a. In addition, when a part of the placed pile 1 sinks, the support 10 installed on the settled pile 1 is extended so that each support 10 has a substantially equal load distribution. Adjust so that
[0017]
The support 10 is not limited to the screw-type jack as described above, and a conventionally known height-adjustable one such as a hydraulic jack can be widely used.
[0018]
Next, a second embodiment will be described. 3 and 4, A is an excavation groove formed for excavating the ground (roadbed) B of the road to embed or repair a pipe or the like. The earth retaining sheet pile 2 is placed or built oppositely along the longitudinal direction. On the outer side of each earth retaining sheet pile 2 (on the road bed B side), a ground support portion 20 having a predetermined width is formed along the earth retaining sheet pile 2 by digging a predetermined depth from the road surface. And the erection material 3 is attached to the earth retaining sheet piles 2 and 2 of each side, and the cut beam 4 is constructed between the erection materials 3 and 3 of those both sides, and the collapse of a natural ground is prevented.
[0019]
The ground support 20 is provided with a base 22 made of concrete, a steel plate or the like via a chestnut layer 21, and a predetermined length in the longitudinal direction of the ground support 20 (longitudinal direction of the cut groove A) is provided on the base 22. The height-adjustable support 10 described above is installed with the interval of. The support 10 is the same as in the previous embodiment, and the base plate 11 is fixed to the base 22 using bolts / nuts or required anchors. In this case, it installs so that the upper end of the support body 10 may become a position higher required distance than the upper end of the earth retaining sheet pile 2. The ground support 20 is provided with an earth and sand control plate 24 having an L-shaped cross section that prevents the side wall surface 23 on the roadbed side from collapsing.
[0020]
When the support member 10 is placed, as in the previous embodiment, by bridging the受杆15 by channel member or the like on a support 10, 10 installed in each side, covered over opposite sides of受杆5,5 The receiving beam 6 of the work plate 7 is installed in parallel in the length direction of the cut groove A with a predetermined interval. And, on the underside of the receiving girder 6, an anti-slip material 16 is attached to the lower surface of the receiving girder 16 in the vicinity of the inner side of the receiving rod 15 to prevent the receiving rod 15 from moving in the width direction (cross direction) of the cut groove A To do.
[0021]
Next, the lining plates 7 and 7 are disposed over the installed receiving girders 6 and 6. In this case, the mounting position of the receiving piece 5 is set in advance so that the upper surface b of the arranged lining plate 7 is substantially flush with the road surface a, but the upper end of the earth retaining sheet pile 2 and the receiving beam 6 It is preferable to keep a little distance from the lower surface.
[0022]
When the surrounding roadbed B sinks in the middle of the construction and the upper surface of the lining board 7 becomes higher than the road surface a, the support 10 is shortened to lower the lining board 7, and the upper surface b is Adjust so that it is flush with the upper surface (road surface) a. In addition, when the natural ground support part 20 sinks as a whole and the upper surface of the lining board 7 becomes lower than the road surface a, the support base 10 is extended to raise the lining board 7, and the upper surface b becomes the road surface. Adjust so that it is flush with a. In addition, when a part of the natural ground support part 20 sinks, the support bases 10 installed in the subsidized natural ground support part 20 are extended, and each support base 10 has a substantially equal load distribution. Adjust as follows.
[0023]
【The invention's effect】
As described above, according to the present invention, road surface lining in roadbed excavation work for underground burial or repair of pipes and the like is performed via a height-adjustable support attached to the earth retaining pile. Since the lining board is supported so that it can be raised or lowered, or the lining board is supported so that it can be raised or lowered via a height-adjustable support body installed on the ground support part formed on the ground side of the earth retaining sheet pile, When there is a difference in level between the roadbed and the lining plate, the pavement material is slid on the stepped portion to loosen the leveling as before, or a support member for the lining plate is inserted. Therefore, the step between the roadbed and the lining plate can be removed by an extremely simple operation of adjusting the height of the support body without performing the troublesome work of adjusting the height of the lining plate.
[0024]
Therefore, the lining work in the excavation work of the roadbed is simplified, the construction process becomes smooth, and the construction period can be reduced and the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.
FIG. 2 is an enlarged longitudinal sectional view of the main part.
FIG. 3 is a longitudinal sectional view showing a second embodiment of the present invention.
FIG. 4 is an enlarged longitudinal sectional view of the main part.
FIG. 5 is a longitudinal sectional view showing an embodiment of a conventional construction method.
FIG. 6 is a longitudinal sectional view showing another embodiment.
7A and 7B are explanatory diagrams of lining adjustment by a conventional method.
[Explanation of symbols]
A Open groove B Roadbed 1 Earth retaining pile 2 Earth retaining sheet pile 3 Raised material 4 Cut beam 5 Receiving piece 6 Receiving girder 7 Backing plate support
11 base plate
13 Screw 杆
14 square nut
15 Receiving
20 Chiyama Support Department
22 Foundation
24 Sedimentation board

Claims (2)

It established a support having erection height adjustable and to and受杆the top to the upper end of the earth retaining stakes are Da設on both sides of the cutting grooves of the roadbed, between support earth retaining piles facing the cutting grooves on both sides The support girders are erected on the receiving girder so that the upper end of the earth retaining pile and the lower surface of the girder are kept apart, and the lining plate is placed on the girder to increase the height of the support. A road surface lining construction method characterized by adjusting the height of the lining board by adjusting. The land mountain side of earth retaining sheet pile to be written Da設or denominated on both sides of the cutting grooves of the roadbed, to form a low natural ground support unit than roadbed, to the natural ground support, height adjustable and to and受杆the top The installed supports are arranged at intervals along the longitudinal direction of the excavation groove, and the upper end of the earth retaining sheet pile and the lower surface of the receiving girder are kept at an interval between the respective supports facing each other across the excavation groove. A road surface covering characterized in that the height of the lining plate is adjusted by installing the supporting girders and placing the lining plates on the receiving girders and adjusting the height of the support. Construction method.

Images