JP2001211540A - Sectional handhole and assebling method for the handhole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sectional handhole constituting a guide-protection wall of square-barrel shape for guiding from the surface of the ground to a certain depth of the ground that is dug at the both sides of a road in the case a cable or the like of a signal cable that is laid along with a railway crosses the road where a grade crossing is constructed, and also to provide an assembling method for the handhole. SOLUTION: At the right end and the left end of a rectangle cube composed of the right-left width, front-rear width and the height, square holes having a square of the front-rear width and a half of the height are notched in different levels. At the left end thereof, there are formed a left-side bottom mating face having a square of the front-rear width and a left-side mating face having the half-height level of which the upper edge connects to the bottom mating face. Likewise at the right end, there are formed a right-side top mating face having the square of the front-rear width and a right-side mating face having the half-height level of which the lower edge connects to the top mating face. Then concrete blocks respectively having a right connecting hole and a left connecting hole that are vertically bored through the blocks are piled in square at the center of the left-side bottom mating face and at the center of the right-side top mating face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground having a certain depth from the ground surface on both sides of a road when a cable such as a signal cable laid along a railway line crosses the road at which the railroad crosses. The present invention relates to an assembling handhole that constitutes a cylindrical guide protection wall that guides up to and a method for installing the assembling handhole.

[0002]

2. Description of the Related Art Conventionally, concrete troughs and handholes have been installed on both sides of a road, and cables such as signal cables housed in the concrete troughs have been introduced and housed in the handholes and guided from the ground surface to a bottom of a certain depth. It is laid under the road at that depth, traverses under the road through a concrete pipe etc. connected to the handhole, accommodates cables such as signal cables etc. in the handhole connected to the opposite end, guides it upward, and hands again A cable such as a signal cable is laid along a railway line, housed in a concrete trough connected to the hall. And after these holes are dug at the site, the formwork is assembled,
The concrete was washed away and built. In addition, various types of concrete products are also provided,
In some cases, they were transported to the site and laid.

[0003]

In the above-mentioned conventional method of casting concrete in place, it is necessary to arrange a worker for formwork construction,
There was a drawback that the construction period was not completed in a short period of time while arranging concrete pouring work. When transporting and laying ready-made products, heavy equipment such as a crane is required for transportation to the site and laying it because of the weight, but the site is narrow and cannot be carried.

The present invention has been made in order to improve such a drawback, and the work is progressed by assembling a block having a reasonable weight on the site, and the labor for forming the formwork is reduced.
In addition, there was no concrete pouring work, and the purpose was to complete a robust handhole with a short construction period.

[0005]

Means for Solving the Problems A left and right width, a front and rear width, and a rectangular body having a front and rear width are provided on the left and right ends of a rectangular body having a height.
And a square portion having a height equal to 1/2 of the height is cut out in a stepwise manner, and the left end thereof is connected to the lower surface of the left and right square joints of the front and rear width and the upper edge is connected to the lower surface of the left square joint.
Forming a left / right-side joining surface with a difference of two steps, a right-side joining surface of a square with a front-rear width at the opposite right end, and a right / left-step joining surface with a lower edge connected to the right-square joining upper surface, An assembling handhole is formed by stacking blocks formed by opening a left connecting hole and a right connecting hole vertically penetrating at the center of the lower surface of the left square joint and the center of the upper surface of the right square joint, respectively.

[0006] The block is made of concrete,
A skeletal reinforcing bar may be arranged inside.

The left connecting hole and the right connecting hole of the block may be opened by incorporating a square hole component member provided by a corrosion-resistant metal square pipe and a fixed reinforcing bar welded thereto. .

The left and right ends of the rectangular body having the left-right width, the front-rear width, and the height are squares of the front-rear width and １ ／ of the height.
The square body portion composed of the height is cut out in a stepwise manner, and the left end thereof has a left and right square joining lower surface of a front and rear width square and a 1/2 step difference left square side joining surface in which the upper edge is connected to the lower square joining lower surface. The right square joint upper surface and the right square joint upper surface of the front-rear width are formed at the opposite right end, and the lower edge is connected to the right square joint upper surface. In the center of the upper surface of the right square joint,
Two blocks each having a left connecting hole and a right connecting hole that penetrate vertically are arranged in a series direction, and then bent at 90 degrees to form a square frame by arranging the two blocks in a series direction, A method for assembling and manufacturing a handhole in which a deformed reinforcing bar penetrating vertically is inserted into a left connecting hole and a right connecting hole of each block, and then mortar is filled.

At the left and right ends of the rectangular body having the right-left width, the front-rear width, and the height, a square of the front-rear width and の of the height are provided.
The square body portion composed of the height is cut out in a stepwise manner, and the left end thereof has a left and right square joining lower surface of a front and rear width square and a 1/2 step difference left square side joining surface in which the upper edge is connected to the lower square joining lower surface. The right square joint upper surface and the right square joint upper surface of the front-rear width are formed at the opposite right end, and the lower edge is connected to the right square joint upper surface. In the center of the upper surface of the right square joint,
A block constituted by opening a left connection hole and a right connection hole penetrating vertically, respectively, laying a bottom plate in the soil, on the upper surface of the bottom plate, lining up the blocks along side edges, and stacking each block. The left square joint upper surface of the right block is connected to the right square joint upper surface of the left block, and the right block has a half step difference of the right block to the right end side surface of the right end of the left block. The left side of the left block of the right block is connected to the left side of the right block, and the left side of the right block is connected without any space. After the connection deformed reinforcing bar 7 is inserted into the left connection hole and the right connection hole penetrating, mortar is filled and solidified, and the assembly method of the handhole which is regulated by each connecting surface and connected integrally is good. It is.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A skeletal rebar is made of concrete and reinforced with skeletal rebars inside. A rectangular body having a front-rear width and a left-right width, a front-rear width, and a height is provided on the left and right ends of a rectangular body. The square part composed of half of the height is cut out in a stepped manner, and the left end is connected to the lower surface of the left square joint of the front and rear width and the upper edge is connected to the lower surface of the left square joint. Forming a square-side joining surface, forming a right-side joining surface of a square with a front-rear width at the opposite right end, and a right-step joining surface having a 1/2 step with a lower edge connected to the right-square joining upper surface; At the center of the lower surface and the center of the upper surface of the right square joint, a metal square pipe provided with a corrosion-resistant metal square pipe having a left connection hole and a right connection hole penetrating vertically and a fixed reinforcing bar welded thereto is provided. It is constructed by opening it by making it internal organs There is a lock on the assembly type hand hole formed by stacking the square.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an assembly type handhole and an assembly type manufacturing method of a handhole according to the present invention. FIG. This shows a formula manufacturing method, in which a block 1 basically has a left and right width L1, a front and rear width L2, and a left and right width L2 on a left end 1a and a right end 1b of a rectangular body having a height H1. As shown in the figure, a square body having a square shape and a height 1 / 2H which is half the height of H1 is cut out in a stepwise manner, and a left square joining lower surface 2a having a front-rear width L2 is formed at the left end. And a left-half joint surface 3a whose upper edge is connected to the lower square joint lower surface 2a thereof is formed by a 1/2 step difference, and a front-rear width L2 is formed at the opposite right end.
Of the right square joint upper surface 2b and the right square joint surface 3 whose lower edge is connected to the right square joint upper surface 2b
b is formed, and a left connection hole 4a and a right connection hole 4b penetrating vertically are respectively opened at the center of the left square joint lower surface 2a and the center of the right square joint upper surface 2b.

The block 1 of the prefabricated handhole and the prefabricated manufacturing method of the handhole according to the present invention is formed in the shape described above. The blocks 1 are arranged side by side along the side edges on the upper surface of the stack and the handhole 6 is completed. When stacking the blocks 1, as shown in FIG. 4, two books 1 are arranged in series and then folded at 90 degrees. The individual blocks 1 and 1 are connected to the right square joint upper surface 2b of the right block 1 and the right square joint upper surface 2b of the right block 1 and to the right end side surface 1b1 of the right end 1b of the left block 1 respectively. On the other hand, the left-side joining surface 3a of the right block 1 is different from the left by a half-step, the right-side joining surface 3b of the left block 1 is different by a half-step, and the left end side 1a1 of the left end 1a of the right block 1 is connected. Then, the deformed reinforcing bar 7 is inserted into the left connecting hole 4a and the right connecting hole 4b vertically penetrating the center of the left square joint upper surface 2a and the right square joint upper surface 2b, and then the mortar 8 is filled. It is solidified and regulated by each connecting surface to be integrally connected.

Even when the blocks 1 are bent at 90 degrees at the four corners and arranged side by side, the right square joint upper surface 2a of the right block 1 is opposed to the left square joint upper surface 2a of the left block 1.
b is connected with the right connecting hole 4b and the left connecting hole 4a in a state of being rotated by 90 degrees, and the right end side 1b1 of the right end 1b of the left block 1 is opened as a side wall, but the right end 1b is opened. The rear surface of the right side of the block 1 is connected to the left-side joining surface 3a of the right block 1 by a half-step, and the right-side joining surface 3b of the left block 1 is connected to the left end 1 of the right block 1.
a, and is connected to the corresponding rear surface without a space, and is similarly connected to the left connection hole 4a and the right connection hole 4b which penetrate vertically through the center of the left square connection upper surface 2a and the right square connection upper surface 2b. And the mortar 8, which is filled and solidified, is regulated by the connecting surfaces to be integrally connected.

As shown in FIGS. 5 and 6, the block 1 is made of concrete and has a skeletal reinforcing bar 9 arranged therein. Further, the left connecting hole 4a and the right connecting hole 4b of the block 1 can be opened by inserting a mold (not shown) during manufacturing. In this embodiment, as shown in FIG.
The opening can also be obtained by incorporating a square hole component member 12 provided by a metal square pipe 10 subjected to corrosion protection and a fixed reinforcing bar 11 welded thereto.

A block 13 shown in FIG. 8 shows an embodiment in which the distance between the left connecting hole 4a and the right connecting hole 4b in the block 1 is different. , The height H1 is the same, and the left end 13a and the right end 13b of the rectangular body are square with the front-rear width L2 of the block 1 and 1/2 the height H1 of the block 1
As shown in the figure, a rectangular body portion composed of 2H is cut out in a stepped manner, and a left and right width L2 of the block 1 is provided at the left end 13a.
The left square joint lower surface 14a and the left square joint lower surface 14a thereof are formed with a 1 / 2-step left square joint surface 15a whose upper edge is connected to the lower square joint lower surface 14a. Right square joint upper surface 14b and 1/2 whose lower edge is connected to right square joint upper surface 14b
A left connecting hole 16a and a right connecting hole 1 penetrating up and down are formed at the center of the left square joining lower surface 14a and the center of the right square joining upper surface 14b, respectively, forming a stepped right square side joining surface 15b.
6b is formed by opening the same size as the left connection hole 4a and the right connection hole 4b of the block 1.

As shown in FIG. 9, the bottom plate 5 is divided into four rectangular bottom plates 5a, 5b, 5c, and 5d, and two center sides of each of the rectangular divided bottom plates 5a, 5b, 5c, and 5d are squared. Notches are formed in the mold grooves 5a1, 5b1, 5c1, and 5d1 to form a center connection square hole 17 when each of the rectangular divided bottom plates 5a, 5b, 5c, and 5d are connected. The center connection square hole 17 is formed in the center connection square hole 17. 18 are fitted, and each square division bottom plate 5a, 5b,
5c, 5d have square grooves 5a1, 5b1, 5c1, 5,
Center connecting studs 1 each of which protrudes into d1
9 is fixedly implanted, and the tip of the center connection stud 19 is fitted to the center connection square pipe 18 so as to protrude from the inner diameter surface of the center connection square pipe 18, and nuts 20 are screwed into the respective protruding portions. And tighten them together to form a square split bottom plate 5a, 5b, 5c, 5d
Are fixedly implanted on the outer peripheral surface of the outer peripheral surface, corresponding to the respective connecting surfaces, and the outer peripheral surface connecting studs 21 projecting from the outer peripheral surface, and nuts 22 are screwed and fastened to the respective protruding portions. To form a bottom plate 5 having required external dimensions.

Blocks 1 and 13 or blocks (not shown) having different dimensions of the left connecting hole 4a and the right connecting hole 4b are prepared, and hand holes of various sizes are constructed by appropriately combining them. Is what you can do. The bottom plate 5 is also configured according to the handholes of various dimensions.

The handholes 6 to be constructed are not limited to the number of steps shown in FIG. 4, but are prepared so that they can be combined so that various dimensions can be constructed. Although not shown in FIG. 4, the blocks 1 are detached and constructed at the uppermost and lowermost stages of the block stacking to introduce and lead out the cable 23. FIG.
Shows an example of construction of the ground surface portion. The uppermost stage of the handhole 6 is closed by a cover plate 24, and a trough block 25 is connected to one side of the handhole 6.

[0019]

As described above, the assembling type handhole and the assembling type manufacturing method of the handhole according to the present invention are as described above. The construction of a robust handhole can be completed in a short period of time without the hassle of concrete and the work of pouring concrete.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a block unit used in an assembling handhole and an assembling manufacturing method of a handhole according to the present invention.

FIG. 2 is a front view of the block alone.

FIG. 3 is a plan view of a block alone.

FIG. 4 is also a perspective view showing an example of a state in which blocks of one example are stacked and an example of a deformed reinforcing bar inserted into the left and right connection holes.

FIG. 5 is a front view showing the arrangement of bars in an example of the block alone.

FIG. 6 is also a plan view showing the arrangement of reinforcing bars in an example of a block alone.

FIG. 7 is a perspective view showing an example of a square hole component member alone which is arranged in a block unit and forms left and right connection holes for filling connection deformed reinforcing bars and mortar.

FIG. 8 is a plan view showing an embodiment in which the bottom plate is formed from a rectangular divided bottom plate.

FIG. 9 is a front view showing another example of the block unit used in the prefabricated handhole and the prefabricated manufacturing method of the handhole according to the present invention.

FIG. 10 is an external explanatory view showing a connection state of a ground portion of a trough block cable path containing a handhole and a cable in a railway track facility.

[Explanation of symbols]

 1 Block 1a Left end 1a1 Left end side 1b Right end 1b1 Right end side 2a Left square joint lower surface 2b Right square joint upper surface 3a 1/2 step difference left square side joint surface 3b 1/2 step difference right square side joint surface 4a Left connecting hole 4b right Connection hole 5 Bottom plate 5a Square division bottom plate 5a1 Square groove 5b Square division bottom plate 5b1 Square groove 5c Square division bottom plate 5c1 Square groove 5d Square division bottom plate 5d1 Square groove 6 Hand hole 7 Connection deformed reinforcing bar 8 Mortar 9 Metal 9 Square pipe 11 Fixed reinforcing bar 12 Square hole constituent member 13 Block 13a Left end 13b Right end 14a Left square joint lower surface 14b Right square joint upper surface 15a 1/2 step difference left square side joint surface 15b 1/2 step difference right square side joint surface 16a left Connection hole 16b Right connection hole 17 Center connection square hole 18 Center connection square pipe 19 Center connection Use stud bolts 20 nuts 21 the outer peripheral surface connecting stud 22 nut 23 cable 24 lid plate 25 trough block

Claims (7)

[Claims] 1. A left-right width, a front-rear width, and a height of a rectangular body having a front-rear width and a square having a height of 1 /
A square body portion having a height of 2 is notched in a stepwise manner, and a left square joint lower surface having a front-rear width square at the left end portion and an upper edge connected to the lower square joint lower surface have a 1/2 step difference left rectangular side joint surface. Are formed at the right end opposite to each other, forming a right and left square joint upper surface of a square with a front-rear width and a right-half joint surface with a lower edge connected to the right square joint upper surface, the center of the lower square joint lower surface and At the center of the upper surface of the right square joint, an assembling handhole is formed by stacking blocks formed by opening left and right connecting holes that penetrate up and down, respectively, in a square shape. 2. The prefabricated handhole according to claim 1, wherein the block is made of concrete and has skeletal reinforcing bars inside. 3. The left connecting hole and the right connecting hole of the block are also opened by incorporating a square hole component member provided by a corrosion-resistant metal square pipe and a fixed reinforcing bar welded thereto. Assembled handhole. 4. A left-right width, a front-rear width, and a height of a rectangular body having a front-rear width and 1/1 of a height are provided at the left end and the right end of the rectangular body.
A square body portion having a height of 2 is notched in a stepwise manner, and a left square joint lower surface having a front-rear width square at the left end portion and an upper edge connected to the lower square joint lower surface have a 1/2 step difference left rectangular side joint surface. Are formed at the right end opposite to each other, forming a right and left square joint upper surface of a square with a front-rear width and a right-half joint surface with a lower edge connected to the right square joint upper surface, the center of the lower square joint lower surface and At the center of the upper surface of the right square joint, two blocks each having a left connecting hole and a right connecting hole penetrating vertically are respectively arranged in series,
After bending, two pieces are arranged in series to form a rectangular frame. After inserting the deformed reinforcing bars vertically penetrating the left and right connecting holes of each block, filling the mortar Assembly type manufacturing method. 5. A left-right width, a front-rear width, and a height of a rectangular body having a front-rear width and a height of 1/1/2 of a height at a left end and a right end of the rectangular body.
A square body portion having a height of 2 is notched in a stepwise manner, and a left square joint lower surface having a front-rear width square at the left end portion and an upper edge connected to the lower square joint lower surface have a 1/2 step difference left rectangular side joint surface. Are formed at the right end opposite to each other, forming a right and left square joint upper surface of a square with a front-rear width and a right-half joint surface with a lower edge connected to the right square joint upper surface, the center of the lower square joint lower surface and At the center of the upper surface of the right square joint, a block formed by opening a left connecting hole and a right connecting hole penetrating vertically, respectively, lay a bottom plate in the soil, and on the upper surface of the bottom plate, along the side edge. Stack the blocks side by side,
For each block, the left square joint upper surface of the right block is connected to the right square joint upper surface of the left block,
Also, the right side of the right side of the left block is different from the right side by a half step of the left block, and the left side of the right side is a half step different from the left block. The side surfaces are connected to each other and joined without space, and after inserting the deformed reinforcing bars into the left and right connection holes vertically passing through the center of the right square joint upper surface and the left square joint upper surface, filling with mortar and solidifying And an assembly type manufacturing method of a handhole which is regulated by respective connecting surfaces and integrally connected. 6. The method for assembling a handhole according to claim 4, wherein the block is made of concrete and a skeletal reinforcing bar is arranged inside. 7. The left connecting hole and the right connecting hole of the block are also opened by incorporating a square hole component member provided by a corrosion-resistant metal square pipe and a fixed reinforcing bar welded thereto. 6. A method for assembling a handhole according to claim 5.