JP3364613B2 - Paving method around manhole - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pavement construction method around a manhole.

[0002]

2. Description of the Related Art The pavement around a manhole is removed to replace the manhole cover due to wear or to adjust the height when there is a step between the paved road surface and the manhole. After installing the lid receiving frame, the paving work around the manhole is performed by filling the surrounding of the lid receiving frame with the paving material.

In this pavement work, as means for removing the pavement around the manhole, the lid receiving frame for receiving the lid of the manhole, the adjustment block supporting the lid receiving frame, etc., the pavement around the manhole, that is, the outer periphery of the lower end of the lid receiving frame is projected. Without breaking the formed flange and the pavement on the upper side of the adjustment block, the lid receiving frame and the adjustment block supporting the lid receiving frame are pulled up by a dedicated pulling device, and by this pulling up, the outer peripheral edge of the flange portion of the lid receiving frame and It is known that the shearing force generated at the outer peripheral edge of the adjustment block causes the flange portion of the lid receiving frame and the pavement on the upper side of the adjustment block to be integrally stripped and removed. As another means, there is known a method in which the pavement road surface around the manhole is cut into a circular shape that is substantially concentric with the circle of the manhole, and the manhole and the pavement attached to it are integrally removed.

[0004]

Among the above-mentioned conventional means for removing the pavement around the manhole, the lid receiving frame for receiving the lid of the manhole, the adjustment block for supporting the lid receiving frame, etc., the former is the lid receiving frame or the lid. When the adjustment block that supports the receiving frame is pulled up, the pavement on the flange part of the lid receiving frame and the upper side of the adjusting block is peeled off due to the shearing force generated at the outer peripheral edge of the flange part of the lid receiving frame and the outer peripheral edge of the adjusting block. The tubular inner surface of the remaining portion of the pavement plate after removing the will exhibit a rough surface having an appropriate roughness as a shear plane,
Although it has good adhesion with the pavement material that is put in later and can prevent edge breakage, on the other hand, there is a problem that the joint between the pavement plate from which the pavement has been removed and the pavement material that was put in later cannot be finished cleanly. there were.

Further, in the latter case, the pavement surface around the manhole is cut into a circular shape which is substantially concentric with the circle of the manhole, and the manhole and the pavement attached to it are integrally removed, so the pavement is removed. The tubular inner surface of the remaining portion of the later pavement plate becomes a smooth surface as a cutting surface, and when the paving material is used later, the pavement plate from which the pavement has been removed on the pavement surface is joined with the pavement material that was thrown in later. Although the part was finished neatly, on the other hand, since the cylindrical inner surface of the remaining portion of the pavement plate was a smooth surface, the adhesion force with the paving material was weak and there was a risk of edge breakage. Further, cutting the paved road surface inevitably causes noise during operation, generation of dust, and generation of slag due to use of water, and in particular, noise causes a problem that it is difficult to smoothly perform nighttime construction.

The object of the present invention is to remove the pavement around the manhole, adjust the installation height of the lid receiving frame of the manhole,
After the lid receiving frame has been installed, when the paving material is filled around the lid receiving frame, the joint between the pavement plate from which the pavement has been removed and the pavement material that was put in later on the pavement surface is finished cleanly, and the remaining portion of the pavement plate The present invention provides a pavement method around manholes that has good adhesion to the pavement material and can prevent edge breakage.

[0007]

The invention according to claim 1 removes the pavement around the manhole, adjusts the installation height of the lid receiving frame of the manhole, installs the lid receiving frame, and then installs the lid receiving frame around the lid receiving frame. In the pavement method around the manhole to be filled with pavement material, confirm the outer circumference of the flange portion formed to project to the outer periphery of the lower end of the lid receiving frame, so as to surround at least the outer circumference of the flange portion from the outside, A step of cutting from the surface to a predetermined depth that does not reach the depth where the flange portion is located, and a ring-shaped pressing frame is pressed against the surface of the pavement plate in accordance with the cutting groove cut in the step, and from this state It is characterized by including the step of pulling up the lid receiving frame by the pulling up means and removing the pavement above the flange portion of the lid receiving frame along the inside of the pressing frame together with the lid receiving frame.

According to this construction method, the outer periphery of the flange portion projecting from the outer periphery of the lower end of the lid receiving frame is confirmed, and first, the paving plate is formed so as to surround at least the outer periphery of the flange portion from the outside. Cutting from the surface to a predetermined depth that does not reach the depth where the flange portion is located, then, on the surface of the pavement plate, press a ring-shaped holding frame according to the cutting groove cut in the above step, and from this state Since the lid receiving frame is pulled up by the lifting means and the pavement above the flange portion of the lid receiving frame is removed along the inside of the pressing frame together with the lid receiving frame, the surface side of the pavement above the flange portion of the lid receiving frame is cut. Since the flange side of the lid receiving frame, that is, the back side is sheared along the inside of the holding frame that holds the surface of the pavement plate downward by pulling up the lid receiving frame, it was removed together with the lid receiving frame. The cylindrical inner surface of the remaining portion of the pavement plate after removal of the pavement on the upper side of the flange portion of the receiving frame will be a smooth surface on the surface side and a rough surface with a moderate roughness as the sheared surface, and later When pavement material was added,
On the pavement surface, the joint between the pavement plate from which the pavement has been removed and the pavement material that was put in later is finished neatly, and on the back side the adhesion between the remaining part of the pavement plate and the pavement material is good and it is possible to prevent edge cutting. . Furthermore, since the pavement plate is cut from the surface to a predetermined depth that does not reach the lid receiving frame, the cutting time is shorter than the conventional method of cutting the pavement plate to the roadbed. It is possible to reduce the generation of noise, dust, slag and the like.

According to the second aspect of the present invention, the manhole in which the pavement around the manhole is removed, the installation height of the lid receiving frame of the manhole is adjusted, the lid receiving frame is installed, and then the paving material is filled around the lid receiving frame. In the surrounding pavement construction method, confirm the outer circumference of the ring-shaped adjustment block that supports the lid receiving frame, and at least the outer circumference of the adjustment block is surrounded from the outside so that the depth of the adjustment block from the surface of the pavement plate is located. The step of cutting to a predetermined depth that does not reach the above, and the ring-shaped pressing frame is pressed against the surface of the pavement plate in accordance with the cutting groove cut in the above step, and from this state the adjustment block is pulled up by the adjustment block. In addition, the method includes a step of removing the pavement on the upper side of the adjustment block along the inside of the lid receiving frame and the pressing frame.

According to this construction method, the outer circumference of the adjustment block is confirmed, and first, the pavement plate does not reach the depth where the adjustment block is located from the surface thereof so as to surround at least the outer circumference of the adjustment block from the outside. Cut to a predetermined depth, then press the ring-shaped holding frame against the surface of the paving slab according to the cutting groove cut in the above process, and from this state pull up the adjustment block with the lifting means to cover with the adjustment block. Since the pavement on the upper side of the adjustment block was removed along the inside of the receiving frame and the pressing frame,
As for the pavement on the upper side of the adjustment block, the surface side is cut and the adjustment block side, that is, the back side is sheared along the inside of the holding frame that holds the surface of the paving plate downward by pulling up the adjustment block, so it is removed together with the adjustment block. The inner cylindrical surface of the remaining part of the pavement plate after removal of the pavement on the upper side of the lid receiving frame and the adjustment block will be a smooth surface on the front side and a rough surface with moderate roughness as the sheared surface on the back side. When the pavement material is put in afterwards, the joint between the pavement plate from which the pavement was removed and the pavement material that was put in later on the pavement surface is finished nicely, and at the back side the adhesive force between the remaining part of the pavement plate and the pavement material is It is possible to prevent sharp edges. Furthermore, since the pavement plate is cut from the surface to a predetermined depth that does not reach the adjustment block, the cutting time is shorter than the conventional method of cutting the pavement plate to the roadbed. It is possible to reduce the generation of noise, dust, slag and the like.

The invention according to claim 3 is the invention according to claim 1 or 2.
The depth of cutting the pavement plate from the surface thereof, which is described in, is 2 times the distance from the surface of the pavement plate to the flange portion of the lid receiving frame.
It is characterized by being within one-half.

[0012] By doing so, the rough surface portion formed on the inner side of the cylindrical inner surface of the remaining portion of the pavement plate after the pavement is removed increases, and when the pavement material is charged later,
Sufficient adhesive force between the remaining portion of the paving plate and the paving material can be obtained, and edge cutting can be more reliably prevented. Furthermore, since the cutting depth of the paving slab is short, the cutting time is further shortened, and the generation of noise, dust, slag and the like caused by cutting can be further reduced.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a pavement construction method around a manhole according to the present invention will be described below in detail with reference to the drawings. 1 to 5 show a first example of an embodiment of a pavement construction method around a manhole according to the present invention. Figure 1
Shows a cross section of a road with a manhole before pavement work,
1 is a manhole, 2 is an opening of the manhole 1, 3 is a ring-shaped adjusting block for adjusting the height, 4 is a lid receiving frame supported by the adjusting block 3, 5 is a lid supported by the lid receiving frame 4,
Reference numeral 6 is a paving slab, and the paving slab 6 is composed of a surface layer and a base layer. Reference numeral 7 is a roadbed.

First, the outer periphery of the flange portion 4a projecting from the outer periphery of the lower end of the lid receiving frame 4 is confirmed, and the paving plate 6 is cut by the cutter 8 so as to surround at least the outer periphery of the flange portion 4a from the outside. The surface is cut to a predetermined depth that does not reach the depth of the flange portion 4a. In this example, the cutting by the cutter 8 is performed by the flange portion 4
The outer periphery of the adjusting block 3 located further outside the outer periphery of a is cut from the outside (FIG. 2). At the time of cutting at this time, it is preferable to cut according to the outer shape of the flange portion 4a. The cutting depth of the cutting groove C formed by this cutting is preferably within ½ of the distance from the surface of the pavement plate 6 to the flange portion 4a of the lid receiving frame 4, and in this example, The cutting depth is about 2 cm from the surface of the pavement plate 6. Further, the cutter 8 for cutting the paving plate 6 is not particularly limited.

Next, the cutting groove C is formed on the surface of the pavement plate 6.
A ring-shaped iron holding frame 9 whose inner peripheral shape is formed in accordance with, is pressed against the cutting groove C. At this time, regarding the relationship between the cutting groove C and the ring-shaped iron holding frame 9, the inner peripheral end of the ring-shaped iron holding frame 9 is placed inside or outside the groove of the cutting groove C cut in an annular shape. Be positioned so that the cutting groove C is not covered.

A lifting means 11 is provided on the upper support frame 10 of the pressing frame 9. This raising means 1
In the first embodiment, in the present example, a hydraulic cylinder 12 provided in the center of the upper support frame 10 of the pressing frame 9 that moves up and down in the vertical direction, and the hydraulic cylinder 12
The lift rod 14 is supported in parallel with the cylinder rod 13 and moves up and down together with the cylinder rod 13, and the engagement support portion 15 is provided at the lower end of the lift rod 14. The lift rod 14 and the engagement support portion 1
5 is formed in a size that can be inserted into the opening 2 of the manhole 1, that is, can be inserted into the openings of the adjustment block 3 and the lid receiving frame 4.

In the engagement support portion 15, a plurality of engagement claws 16 that move in the centripetal centrifugal direction are provided at equal intervals in the circumferential direction. The engaging claw 16 moves in the centrifugal direction to be inserted between the adjustment block 3 and the lid receiving frame 4 to support the lid receiving frame 4, and the manhole 1 and the adjusting block 3 as well.
And the adjustment block 3 is supported by being inserted between them. The movement of the engagement claw 16 in the centripetal centrifugal direction is performed by a hydraulic cylinder (not shown).

As described above, when the ring-shaped iron holding frame 9 whose inner peripheral shape is formed in conformity with the cutting groove C is pressed against the cutting groove C on the surface of the pavement plate 6,
With the engagement claw 16 of the engagement support portion 15 moved in the centripetal direction, the hydraulic cylinder 12 is operated to contract the cylinder rod 13, and thereby the lift rod 14 is lowered integrally. The lower end is removed and inserted into the lid receiving frame 4 in the open state, and the engaging claw 16 of the engaging support portion 15 is positioned between the adjusting block 3 and the lid receiving frame 4 (FIG. 3).

Next, the engaging claw 16 is moved in the centrifugal direction,
It is inserted between the adjustment block 3 and the lid receiving frame 4, and from this state, the hydraulic cylinder 12 is operated to extend the cylinder rod 13. As a result, a lifting force in the vertical direction is applied to the lid receiving frame 4 by the lifting rods 14 that are integrally lifted, and this lifting force is applied to the pressing frame 9 as a reaction force, and the surface of the paving plate 6 by the pressing frame 9 is applied. Becomes a force to push downward, and the contradictory force acts as a shearing force on the inner peripheral end of the pressing frame 9,
The lid receiving frame 4 is removed along the inside of the holding frame 9, that is, with the pavement 6a having the cutting groove C as the outer peripheral contour (FIG. 4).

As another means, the lifting rod 14, the hydraulic cylinder 12, which constitutes the lifting means 11, and the iron holding frame 9 which is pressed against the surface of the paving slab 6 are separately formed,
As a pressing force of the iron holding frame 9, the lift rod 1
Without using the reaction force of the pulling force of 4, the iron holding frame 9
Alternatively, a load corresponding to the necessary pressing force may be applied.

In the pavement 6a on the upper side of the lid receiving frame 4 thus removed, the front side is cut by the cutter 8, and the inner side of the holding frame 9 for holding the surface of the paving plate 6 downward by pulling up the lid receiving frame 4. Because it is sheared along
The cylindrical inner surface of the remaining portion of the paving slab 6 after the removal of the pavement 6a along with the lid receiving frame 4 along the inner side of the pressing frame 9 has a smooth surface S on the surface side and a rough surface with a moderate roughness as a sheared surface. It will exhibit a surface R (FIG. 4).

Next, after removing the lid receiving frame 4 and the pavement 6a on the upper side thereof, the height of the lid receiving frame 4 is adjusted by the adjusting block 3 on the upper portion of the manhole 1 by a known means, the lid receiving frame 4 is installed, and the lid receiving frame 4 is removed. The paving material is filled between the remaining portion of the paving plate 6 and the lid receiving frame 4 is covered to complete the road paving work (not shown).

In this example, after removing the lid receiving frame 4 and the pavement 6a on the upper side thereof, the pulling-up means 11 is operated again, and the engaging claw 16 is moved in the centrifugal direction by the same operation as described above, and the manhole is moved. 1 and the adjustment block 3, and from this state, the hydraulic cylinder 12 is operated to extend the cylinder rod 13 and the adjustment block 3 is removed (FIG. 5).
The adjusted concrete 3 and the lid receiving frame 4 are newly installed on the upper part of the, the pavement material is filled between the adjusted concrete 3 and the lid receiving frame 4 and the remaining portion of the pavement plate 6, and the lid receiving frame 4
Cover the lid.

FIGS. 6 and 7 show a second example of the embodiment of the pavement method around the manhole according to the present invention.

In this example, first, the outer periphery of the ring-shaped adjustment block 3 for supporting the lid receiving frame 4 is confirmed, and the pavement plate 6 is adjusted from the surface thereof so as to surround at least the outer periphery of the adjustment block 3 from the outside. Cut to a predetermined depth that does not reach the depth where the block 3 is located. At the time of cutting, it is preferable to cut in accordance with the outer shape of the adjusting block 3. Cutting groove C formed by this cutting
It is preferable that the cutting depth is less than ½ of the distance from the surface of the paving plate 6 to the flange portion 4a of the lid receiving frame 4 as in the first example of the present invention. Then, the cutting depth is about 2 cm from the surface of the pavement plate 6.
Further, the cutter for cutting the paving slab 6 is not particularly limited as in the first example of the present invention.

Next, the ring-shaped holding frame 9 is pressed against the surface of the paving slab 6 in accordance with the cutting groove C cut in the above-mentioned step, and the adjusting block 3 is pulled up by the raising means 11 from this state. At the same time, the pavement 6a above the adjustment block 3 is removed along the insides of the lid receiving frame 4 and the pressing frame 9.

The operation of pressing the ring-shaped holding frame 9 against the surface of the paving slab 6 in accordance with the cutting groove C cut in the above step is performed in the same manner as in the first example, and then the adjusting block. The pulling-up means 11 for pulling up 3 has the same structure as the pulling-up means 11 of the first example, and since the same operation is performed, the description thereof will be omitted.

The difference between this example and the first example is that in the first example, the lid receiving frame 4 is pulled up by the pulling-up means 11 and the flange portion 4a of the lid receiving frame 4 along with the lid receiving frame 4 is held inside the pressing frame 9. In contrast to removing the upper pavement 6a, in this example, the adjusting block 3 is pulled up by the pulling-up means 11 so that the upper pavement 6a of the adjusting block 3 is removed along with the adjusting block 3 along the inside of the lid receiving frame 4 and the pressing frame 9. It is the point to be removed, and the others are the same.

That is, in this example, a ring-shaped iron holding frame 9 is pressed against the surface of the paving slab 6 in alignment with the cutting groove C,
With the engagement claw 16 of the engagement support portion 15 moved in the centripetal direction, the hydraulic cylinder 12 is operated to contract the cylinder rod 13, and thereby the lift rod 14 is lowered integrally. The lower end is removed and the lid 5 is removed and inserted into the open lid receiving frame 4, and the engaging claw 16 of the engaging support portion 15 is positioned between the manhole 1 and the adjusting block 3 (FIG. 6).

Next, the engaging claw 16 is moved in the centrifugal direction,
It is inserted between the manhole 1 and the adjustment block 3, and from this state, the hydraulic cylinder 12 is actuated to extend the cylinder rod 13 so that the lifting rod 14 that rises as a unit vertically to the adjustment block 3. A pulling force in a direction is applied, and this pulling force is applied as a reaction force to the pressing frame 9 to press the surface of the paving slab 6 downward by the pressing frame 9, and these opposing forces are the inner circumference of the pressing frame 9. By acting as a shearing force on the end, the lid receiving frame 4 is removed along with the adjusting block 3 along the inside of the holding frame 9, that is, with the pavement 6a having the cutting groove C as the outer peripheral contour (FIG. 7). .

Adjustment block 3 thus removed
The upper side of the pavement 6a is cut by the cutter 8 on the front side, and the inner side of the pavement 6a is sheared along the inside of the holding frame 9 that holds the surface of the paving plate 6 downward by pulling up the lid receiving frame 4, so that the inside of the holding frame 9 is cut. Pavement plate 6 after removal of pavement 6a
The inner surface of the remaining portion of the cylindrical surface becomes a smooth surface S, and the inner side thereof exhibits a rough surface R having a proper roughness as a shearing surface (FIG. 7).

Next, after the adjustment block 3, the lid receiving frame 4 and the pavement 6a on the upper side thereof are removed, the adjusting block 3 and the lid receiving frame 4 are newly installed on the upper part of the manhole 1 by a known means, and the adjustment block 3, the lid Paving material is filled between the receiving frame 4 and the remaining portion of the paving slab 6, and the lid receiving frame 4 is covered to complete the road paving work (not shown).

According to the construction methods shown in the above two examples, the pavement around the manhole 1 is removed, the installation height of the lid receiving frame 4 of the manhole 1 is adjusted, and after the lid receiving frame 4 is installed, the surroundings are removed. In the pavement method around the manhole in which the pavement material is filled in, the outer periphery of the flange portion 4a or the adjustment block 3 formed so as to project to the lower end outer periphery of the lid receiving frame 4 is confirmed, and at least the flange portion 4a or the adjustment block 3 is The outer surface of the pavement plate 6 is cut from the surface to a predetermined depth that does not reach the depth where the flange portion 4a or the adjustment block 3 is located, and the surface of the pavement plate 6 is cut as described above. The ring-shaped press frame 9 is pressed according to the cutting groove C, and the lid receiving frame 4 or the adjusting block 3 is pulled up by the pulling-up means 11 from this state to lift the lid receiving frame or the adjusting block. Since the pavement 6a on the upper side of the flange portion of the lid receiving frame or on the upper side of the adjusting block 3 is removed along with the inner side of the holding frame together with the tool 3, the front side of the paving plate 6 is cut by the cutter 8 and the back side is the lid receiving frame. 4 or the adjustment block 3 is sheared by pulling up, so that the inner surface of the cylindrical inner surface of the remaining portion of the paving slab 6 after removal of the pavement 6a inside the holding frame 9 is a smooth surface S and the back side is a sheared surface. A rough surface R having an appropriate roughness will be exhibited,
When the pavement material is put in afterwards, the joint between the pavement plate 6 from which the pavement 6a has been removed and the pavement material put in later on the pavement surface is finished cleanly, and the remaining portion of the pavement plate 6 and the pavement material are attached at the back side. It has good adhesion and can prevent edge breakage.

Further, since the pavement plate 6 is cut from the surface to a predetermined depth that does not reach the depth where the lid receiving frame 4 or the adjustment block 3 is located, the conventional method for cutting the pavement plate 6 to the roadbed 7 is used. In comparison, the cutting time is short, and the amount of noise, dust, slag, etc. generated by cutting can be reduced accordingly. In particular, in this example, the depth at which the pavement plate 6 is cut from its surface is about 2 cm from the surface of the pavement plate 6, so it is formed on the inner side of the cylindrical inner surface of the remaining portion of the pavement plate 6 after the pavement is removed. When the pavement material is thrown in later, a sufficient adhesive force between the remaining portion of the pavement plate 6 and the pavement material can be obtained, and edge breakage can be more reliably prevented. Furthermore, since the cutting depth of the paving slab 6 by the cutter is short, the cutting time is further shortened, and noise,
It is possible to further reduce the generation of dust and slag.

[0035]

As described above, according to the pavement construction method around the manhole according to the present invention, the cylindrical inner surface of the remaining portion of the pavement plate after removal of the pavement removed together with the lid receiving frame or the adjustment block is Since it becomes a smooth surface, and its back side presents a rough surface having an appropriate roughness as a shearing surface, when a pavement material is put in later, a joint portion between the pavement plate from which the pavement has been removed on the pavement surface and the pavement material put in later. Is finished neatly, and on the back side the adhesive force between the remaining part of the pavement and the pavement material is good and it is possible to prevent edge breakage.In addition, the cutting of the pavement plate with a cutter is performed from the surface of the lid receiving frame or the adjustment block. Since it is up to a predetermined depth that does not reach the depth where it is located, compared to the conventional method of cutting pavement to the roadbed with a cutter, the cutting time is shorter, and the amount of noise, dust, slag, etc. is reduced accordingly. It is possible.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a road with a manhole before pavement construction by a pavement method around a manhole according to the present invention.

FIG. 2 is a first pavement method around a manhole according to the present invention.
Sectional drawing which shows the process of cutting a pavement plate to the predetermined depth from the surface in the process of an example.

FIG. 3 is a first pavement construction method around a manhole according to the present invention.
Sectional drawing which shows the process of pressing a ring-shaped holding frame on the surface of a pavement plate in the process of an example.

FIG. 4 is a first pavement method around a manhole according to the present invention.
Sectional drawing which shows the process of pulling up a lid | frame with a raising means in the process of an example.

FIG. 5 is a cross-sectional view showing a step of pulling up the adjustment block by the pulling-up means after pulling up the lid receiving frame in the step of FIG.

FIG. 6 is a cross-sectional view showing a step of pressing a ring-shaped press frame against the surface of the paving slab in the step of the second example of the pavement construction method around the manhole according to the present invention.

FIG. 7 is a second pavement construction method around a manhole according to the present invention.
Sectional drawing which shows the process of pulling up an adjustment block with a raising means in the process of an example.

[Explanation of symbols]

1 manhole 2 openings 3 adjustment blocks 4 Lid receiving frame 4a Flange part 5 lid 6 pavement version 6a Pavement to be removed on the upper side 7 roadbed 8 cutter 9 holding frame 10 Upper support frame 11 Lifting means 12 hydraulic cylinder 13 Cylinder rod 14 Lifting rod 15 Engagement support 16 engaging claws C cutting groove S smooth surface R rough surface

Front page continuation (72) Inventor Yuji Imazaki 1-8-13 Ekoda, Nakano-ku, Tokyo (72) Inventor Saburo Koiwa 562-32, Sezaki-cho, Soka-shi, Saitama (56) References JP 2000-345506 (JP, JP, A) Patent 2623492 (JP, B2) Utility model registration 3010469 (JP, Y2) (58) Fields investigated (Int.Cl. ⁷ , DB name) E01C 23/00 E01C 23/09 E01C 23/12 E02D 29/12

Claims (3)

(57) [Claims] 1. A pavement method around a manhole in which pavement around the manhole is removed, the installation height of the lid receiving frame of the manhole is adjusted, the lid receiving frame is installed, and then the pavement material is filled around the lid receiving frame. Check the outer periphery of the flange part that is formed protruding to the outer periphery of the lower end of the lid receiving frame, and do not reach the depth at which the flange part is located from its surface so that at least the outer periphery of the flange part is surrounded from the outside. A step of cutting to a predetermined depth and a ring-shaped holding frame is pressed against the surface of the pavement plate in accordance with the cutting groove cut in the above step, and from this state, the lid receiving frame is pulled up by the lifting means and the holding frame together with the lid receiving frame. A pavement method around a manhole, including a step of removing the pavement above the flange portion of the lid receiving frame along the inside of the. 2. A pavement method around a manhole in which pavement around the manhole is removed, the installation height of the lid receiving frame of the manhole is adjusted, the lid receiving frame is installed, and then the pavement material is filled around the lid receiving frame. Check the outer circumference of the ring-shaped adjustment block that supports the lid receiving frame, and at least a predetermined depth that does not reach the depth where the adjustment block is located from the surface of the paving slab so that at least the outer circumference of the adjustment ring is surrounded from the outside. The step of cutting and pressing the ring-shaped holding frame on the surface of the paving slab according to the cutting grooves cut in the above step, and pulling up the adjusting block from this state by the pulling up means together with the adjusting block for the lid receiving frame and the holding frame. A pavement method around a manhole, characterized by including the step of removing the pavement above the adjustment block along the inside. 3. The cutting depth of the pavement plate from the surface thereof is 2 times the distance from the surface of the pavement plate to the flange portion of the lid receiving frame.
The pavement method around the manhole according to claim 1 or 2, wherein the pavement method is within one-half.