JPS5972325A - Pavement work for surrounding of manhole - Google Patents

Abstract

PURPOSE:To prevent noise and vibration accompanying the crushing of pavement slab by a method in which the paved road around a manhole is cut into a circular form, and the manhole and the pavement slab adhered to the manhole are removed out together. CONSTITUTION:Tips of both legs of an inversed V-shaped part 4 are coupled with hooks provided to the manhole cover 2 on the paved road 1, the screw shaft 5 is clamped with the cnetral part of the manhole cover 2 from the crossing portions of the both legs, and the part 4 is fixed to the cover 2. A rotary arm 6 is rotatably attached to the screw shaft 5, and the base 8 of a road cutter vehicle 7 is connected to the other end of the arm 6. When the road cutter vehicle 7 is run, a circular cutting 24 is performed by a disc blade 11, and after the cutting, the manhole and pavement slab adhered to the manhole are integrally removed out, and new manhole is set and fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of paving around a manhole that involves adjustment of the manhole.

Conventional methods for paving around manholes include cutting the pavement around the manhole into squares, crushing and removing the cut pavement slabs, removing the manhole, adjusting the manhole installation foundation, installing the manpole, and asphalt paving. Construction methods consisting of construction and other related processes are widely adopted. However, in this paving method, (a) the pavement slabs after cutting into rectangles are crushed while the pavement slabs and manholes are still within the road surface, which causes severe noise and vibration to the roadside environment, and there are no countermeasures for these problems. (b) Since the paved road surface is cut into squares, cross-shaped excess cuts occur at the corners, making it difficult to sufficiently fill the grooves of the excess cuts during pavement construction. (C) A rectangular repair is performed around a circular manhole, which leaves a strange or strange feeling after the repair. (d) Areas to be repurposed where paving materials have been laid. The shape of the plate includes circular arcs and corners, and since this is rolled by a rectangular vibratory roller [E plate, the desired rolling effect cannot be obtained unless the area to be rolled E is sufficiently wide. This leads to an expansion of the repair area, an increase in the amount of work and the amount of pavement available, and a decrease in the appearance and strength of the road surface after repair. There are many problems such as allowing overgrowth, insufficient support and protection for manholes, uneven asphalt flow, and unevenness due to overfilling, which can become a major cause of traffic accidents. There was a problem.

The method of paving around manholes according to the present invention solves the problems of the prior art as described above.

First, the first invention involves cutting the paved road surface at least around the manhole, removing the cut pavement slab and the manpole,
Adjusting the manhole foundation, installing the manhole, and paving the area around the manhole, including cutting the paved road surface around the manhole into a circular shape and removing the manhole and the pavement slab attached to it in one piece. It is characterized by the fact that the above-mentioned difficulties (b) and (c) are solved by cutting the paved road surface into a circular shape, and it is also possible to remove the manhole and the cut pavement slab in one piece. Difficulty (a) is resolved. In this case, even if the removed manhole with the paving slab is crushed and cleaned at the construction site and then subjected to the subsequent manhole repair process, no noise or vibration will be generated in the roadside environment. Although this is significantly reduced compared to the conventional method, it is preferable to transport the removed manhole with the paving slab to an appropriate location and subject it to crushing and cleaning without causing noise or vibration pollution.
By using spare manholes that have been crushed and cleaned in advance for the immediate manhole installation process, it is possible to completely prevent noise and vibration pollution caused by the crushing and removal of pavement slabs. It is possible to omit work such as crushing on site and cleaning before applying the brimer.

In the above-mentioned method, the circular cutting method of the paved road surface includes, for example, a method of rotating a cylindrical bit around its vertical axis;
A method of holding a road surface cutting die having a disc-shaped blade so that each rotating shaft of the disc-shaped blade, running wheel, etc. is oriented to the center of rotation and rotating it in a circular shape, or
High-pressure water injection methods can be adopted as appropriate. Also,
As a method for removing a manhole with a cut pavement slab, for example, there is a method in which a rod engaged in a bridging manner inside the manhole is hydraulically pulled up via a wire lobe.

Next, the second invention combines the first invention with rolling the paving material laid during pavement application using a vibrating rolling plate having an arcuate side edge. In addition to difficulties (a), (b), and (c), difficulty (
d) is solved. In other words, by using a vibrating rolling plate whose shape corresponds to the shape of the doughnut-shaped area to be rolled, the workability and rolling effect of rolling are significantly improved. A compacting effect can be obtained. For example, the outer diameter of the top of the head is 915 mm (-y lunge diameter 1:1
．． 03 mm) The paved road surface around the manhole is 1 mm in diameter.
3 ], cut into a 5 mm circle and 2 jo mm
Even if a doughnut-shaped area to be rolled and pressed with a width fails to be formed, the effects of the present invention can be fully obtained. 15-178 compared to that for a square cut of ~2500 mW. The vibratory rolling compaction plate used in this invention may be boat-shaped or may be the foot of a rammer that is vibrated by piston motion, and there are no particular limitations on its type, plate width, or arcuate length. do not have.

The third invention combines the construction of a resin pavement made of resin mortar or resin concrete with the invention of the third invention.
), (b), and (C), as well as difficulty (e).

In addition, in this invention, if the proportion of the base resin to the aggregate is large, it is possible to construct pavement with the diversion work omitted or simplified, and in this case, the above-mentioned difficulty (d) can be constructed.
This will also lead to improvements in the As the main resin, for example, epoxy resin can be used.

Furthermore, the fourth invention provides the first aspect of the present invention, in which the paving material is compacted by a vibrating compaction plate having an arcuate side edge when the paving material is constructed by the paving owner, and the paving material is constructed of resin mortar or resin concrete. This invention solves the above-mentioned difficulties (a) and (
b), (C), (d) and (e) will be solved.

In addition, when adjusting the manhole installation foundation, fine adjustment of the manhole installation foundation to a planar shape is necessary by laying a resin spacer molded into a fan shape from resin mortar and resin concrete, and applying and filling resin mortar or resin concrete. By doing so, extremely stable planar support can be obtained compared to the conventional point support of the manhole by laying brick blocks, etc., so it is preferable to use it together with each of the inventions described in -.

If the resin spacer described in 2 is molded using excess material from the resin mortar or resin concrete 1 mixed during fine adjustment of the manhole foundation and construction of resin pavement, the material will be reduced. This is an effective use.As a resin spacer, it is a sector-shaped one that is a donut shape of a predetermined size divided into, for example, 1/2,''/4.1/6. It is preferable to prepare materials of various thicknesses.In addition, for rough adjustment before the fine adjustment described in I- in the construction of the manhole foundation,
For example, a brick block or a sector-shaped concrete block obtained by appropriately dividing a donut shape may be used.

Figure 1 shows the main part side +f of the vine road cutting device used in the present invention.
This is a diagram showing the hooks (3) and (3) that are hanging freely on the manhole cover (2) on the paved road surface (]).
), engage the ends of both legs of the inverted V-shaped member (4) L1, and thread the screw shaft (5) vertically from the intersection of the two legs, passing through the center part of the surface of the manhole cover (2). By tightening until it is pressed, the screw shaft (5) is attached to the inverted V-shaped member (4).
At the same time, fix the manhole cover (2) vertically to the manhole cover (2).

A rotating arm (6) is rotatably attached to the screw shaft (5) K, and a chassis (8) of a road cutting vehicle (7) is connected to the other end of the rotating arm (6). Destroyed road cutting vehicle (7)
disc-shaped blade (9) and running wheels (10), (1
0) are oriented in the direction of the screw shaft (5) which is the center of rotation, and the displacement wheel (11) for adjusting the cut depth has a caster structure. In the above configuration 1. Is it possible to perform a predetermined circular cut by driving the road cutting vehicle (7), especially in a case where the rotating shaft of the disc-shaped blade (9) is tilted at a required angle with respect to the horizontal direction? Conical inclined cutting is possible instead of the usual straight cylindrical cutting, making it easy to remove manholes and pavement slabs after cutting, and making it possible to construct superior pavement.

Next, FIGS. 2(A) and 2(B) are a front view of a main part of a rolling compaction machine that can be used in the present invention and a bottom view of a main part of a vibrating compaction plate thereof. Vibration device (14)
and a vibrating rolling plate (15), and the vibrating rolling plate (15) has arcuate side edges (16a), (16
b).

Moreover, FIGS. 3(A) and 3(B) are a plan view and a partially enlarged sectional view of a paved road around a manhole that has been completed based on an embodiment of the present invention. After cutting the paved road surface (1) into a circular shape and removing the old manhole and the pavement slab (not shown) attached to it, the underground concrete IJ-) 9 (17)
Rough adjustment is performed by laying a fan-shaped Funkret block (18) on the top surface, and then a fan-shaped resin spacer (19) is placed on the top surface.
) and flattened the stepped parts and missing parts caused by the laying with a resin coating layer (2o),
Fine-tune the manpole installation foundation. Next, a spare man pole (
21) so that its 7 lunge part (22) rests on the manhole installation foundation, and after applying the required primer to each place, between the installed spare manhole (21) and the existing pavement (23), The resin pavement (24) was constructed while being rolled using a vibrating rolling plate (not shown) having an arc-shaped side edge, and Niman Ball was applied inside the paving, and the paving work around the hole was almost completed.

As described above, according to the method of paving around manpoles according to the present invention, it is possible to effectively solve the problems of the conventional method, including the noise and vibration problems caused by the crushing of paving slabs. .

[Brief explanation of drawings]

FIG. 1 is a side view of the clamp part of the vine road cutting device used in the present invention;
2(A) and 2(B) are a front view of the main parts of a rolling press that can be used in the present invention, a bottom view of the main parts of the vibration diversion plate, and a third
Figures (A) and (B) are a plan view and a partially enlarged sectional view of a paved road constructed according to an embodiment of the present invention. 1...Paved road surface, 7...For cutting road surfaces, 12.Diversion. Machine, 15... Vibratory rolling plate + 16 a + 16
b - arcuate side R, 17... concrete) wall;
1a Conocrete block, 19 Resin spacer, 20 Resin coating layer, 21 Spare manpole, 23 Existing pavement, 24 Resin pavement
I-1-Representative Patent Attorney Atsushi Ando

Claims (10)

[Claims] (1) Paving around the manhole, including at least cutting the pavement surface around the manhole, removing the cut pavement slab and manhole, adjusting the manhole installation foundation, leveling the manhole, and constructing the pavement] A method for paving around manholes, which is characterized by cutting the surrounding paved road surface into a circular shape and simultaneously removing the manhole and the pavement slab attached to it. (2) The method for paving around manholes according to claim 1, wherein a manhole is installed on a foundation with adjusted manhole installation. (3) At least in the paving method around the manhole, which includes cutting the pavement surface around the manhole, removing the cut pavement slab and manhole, adjusting the manhole installation foundation, leveling the manhole, and constructing the pavement, The method is characterized by cutting the paved road surface into a circular shape and removing the manhole and the pavement slab attached thereto in one piece, and compacting the paving material laid during pavement construction using a vibrating compaction plate having arcuate side edges. Paving method around manholes. (4) A method of paving around a manhole according to claim 3, in which a spare manhole is installed on an adjusted manhole installation foundation. (5) In the paving method around the manhole, which includes at least cutting the paved road surface around the manhole, removing the cut pavement slab and manhole, adjusting the manhole installation foundation, installing the manhole, and constructing the pavement, A method for paving around manholes, which is characterized by cutting the surrounding paved road surface into a circular shape, removing the manhole and the pavement slabs attached to it in one piece, and constructing resin pavement made of resin mortar or resin concrete. . (6) Paving method around the manhole according to claim 5, in which a spare manhole is installed on the adjusted manhole installation foundation. (7) The method for paving around manholes according to claim 5, wherein the resin mortar or resin concrete is an epoxy resin. (8) At least in the paving method around the manhole, which includes cutting the paved road surface around the manhole, removing the cut pavement slab and manhole, adjusting the manhole installation foundation, installing the manhole, and constructing the pavement, cutting it into a circular shape and removing the manhole and the pavement slab attached to it in one piece;
and resin mortar or TD, and a method for paving around manholes, which is characterized by constructing a resin pavement made of resin concrete and rolling the paving material laid during the construction of the pavement using a vibrating compaction plate having an arcuate side edge. (9) The method for paving around a manhole according to claim 8, in which a spare manhole is installed on the adjusted manhole installation foundation. (10) mJ fat mortar or l'i resin concrete IJ
-) Paving method around manholes according to claim 8 characterized by H epoxy resin 0