KR100892593B1 - Assembly manhole - Google Patents

Abstract

A prefabricated manhole is provided to reduce failure rate in construction of manhole, to secure water-tightness after the construction, and to reduce the construction period. A prefabricated manhole(100) comprises an anchor mounting groove formed in the upper side of a lower manhole block(110), anchor through holes(125,135) formed in an extension manhole block(120) and an upper manhole block(130), anchors(150) which are fixed in the anchor mounting groove after passing through the anchor through holes, and connection pieces(161,162) which is arranged on the connection part of the manhole blocks and inserted to the manhole blocks and in which the anchors pass through.

Description

Assembly manhole

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole, and more particularly, to a manhole that is assembled by a field assembly method using a ready-made manhole block.

In various civil and building works, sewage pipe construction is required to treat rainwater, sewage, and wastewater. A manhole block is installed in the middle of the sewage pipe, and the manhole block is inspected in the conduit. Or cleaning, ventilation, ventilation or bonding, branching, etc.

The construction method of a manhole block generally used is largely divided into a field casting method and a method of assembling a ready-made manhole block.

Currently, the field casting method that is widely used is to install the formwork in the place where the actual manhole block is installed, and to assemble the reinforcing bar, and then the concrete produced by mixing the predetermined materials is poured into the formwork and after the predetermined curing period, This is a method of manufacturing the manhole block by removing the.

However, the above-described site casting method has many problems. First, the manufactured manhole block has a problem in that it is difficult to completely block leakage due to the inability of connecting the inlet and outlet pipes to be precisely constructed, and to install the formwork at the site, thereby making it difficult to adjust the height of the manhole block. In addition, there is a problem in that the construction period is prolonged due to the need for curing period of the poured concrete, resulting in traffic jams, thereby increasing civil complaints. In addition, construction costs are also relatively high.

A method of assembling a ready-made manhole block was proposed as an alternative to the on-site casting method having many problems as described above, and a national standard (KS F 4012: concrete manhole block for sewerage) was established in 1970. It has been revised and reached the present day.

Referring to Figures 1 and 2, the configuration of the conventional ready-made manhole block is as follows.

As shown, the ready manhole block 1 includes an upper manhole block 13, an extended manhole block 12, and a lower manhole block 11. The upper manhole block 13 is provided on the upper part of the extended manhole block 12 and has a manhole cover coupling hole 13a into which a manhole cover is inserted. The extended manhole block 12 is formed in a shape in which the upper and lower portions are open and is provided between the upper manhole block 13 and the lower manhole block 11. The lower manhole block 11 is provided at the bottom of the extended manhole block 12 and has a pipe connector 11a to which a pipe can be connected. And a sealing member 15 for blocking leakage is fitted in each of the parts of the manhole blocks are assembled.

In addition, the ready-made manhole block 1 has a spigot (11d, 12d) which is a part to be fitted during mutual coupling of the manhole block, or a socket (socket: 12c, 13c) which is fitted to correspond to the spigot when the manhole block is mutually coupled. ) Is formed. More specifically, the spigot 12d is formed on the upper part of the elongated manhole block 12, and the socket 13c corresponding to the shape of the spigot 12d is formed on the lower part of the upper manhole block 13. The upper manhole block 13 and the extended manhole block 12 may be coupled to each other. And the spigot 11d is formed in the upper part of the lower manhole block 11, and the socket 12c corresponding to the shape of the spigot 11d is formed in the lower part of the extended manhole block 12, The lower manhole block 11 and the extended manhole block 12 may be coupled to each other. By the spigots 11d and 12d and the sockets 12c and 13c, the manhole blocks can be smoothly coupled and can withstand external forces in the transverse direction.

In addition, a fastening hole 16a is formed at a predetermined position of the outer surface of the manhole block, so that the transport bolt 16 capable of transporting the shaped manhole block can be fastened.

Subsequently, referring to FIG. 3, a method of coupling a conventional manhole block is as follows.

As shown in FIG. 3, the manhole blocks may be coupled to each other by using the coupling plate 18 at a portion where the manhole blocks are coupled to each other. More specifically, in the upper manhole block 13 and the extended manhole block 12 and the extended manhole block 12 and the lower manhole block 11, the coupling plate 18 on the outer circumferential surface of the joining portion of the manhole block Add and fasten one side and the other side of the coupling plate 18 to the fastening member 19, such as anchor bolts to couple the manhole blocks to each other.

However, the above-described conventional manhole block and manhole block assemblies combining the same have the following problems.

The manhole block assembly by the conventional coupling method has a problem in that the binding force is weak and easily deformed to the external force. Specifically, the method of using the above-described coupling plate in connecting the manhole blocks is difficult to bind and squeeze the two manhole blocks self-secured in the vertical direction, and simply connects the two manhole blocks so that they do not sufficiently cope with external forces. In particular, the joining plate is easily deformed by the torsional force.

In addition, the conventional ready-made manhole block is formed with an installation groove for the installation of the sealing member on the top end surface of each manhole block, when using the lifting equipment such as cranes during the transfer, loading and coupling construction when moving from the factory to the site Unsuccessful work may result in a collision between manhole blocks or collisions with surrounding interference. In particular, the damage caused by the collision occurs by focusing on the protruding portion of the manhole block is formed with the installation groove for the sealing member installation. As a result, such breakage causes inaccurate coupling between the manhole blocks after construction, and also creates a gap between the manhole blocks and the sealing member, and consequently acts as a factor in preventing watertightness.

In addition, the conventional ready-made manhole block performs the seating assembly operation of each manhole block, and adds the coupling plate 18 to the outer circumferential surface coupled between each manhole block and anchor bolts on one side and the other side of the coupling plate 18. By fastening the assembly member for the manhole blocks by fastening the fastening member 19 of the back, it took a lot of work time when on-site assembly.

In addition, in the conventional manhole construction stage, each manhole block is lifted in turn by using external lifting equipment such as a crane, and the supporter for correcting the position of the manhole block that is incorrectly entered incorrectly when the spigot and the socket are coupled to each other is combined. The operator should always wait at the site around the manhole block, which is difficult for the worker to approach around the manhole, which is usually several meters high, and in addition, to handle the heavy manhole block in such a difficult working environment, It has risks.

Therefore, the present invention is to solve the conventional problems as described above, the purpose is to prevent damage to the protruding portion of the manhole block (coupling portion where the sealing member is installed) that occurs frequently during the assembly construction of the existing manhole block Therefore, to reduce the defective rate of the manhole generated during the assembly construction, and to provide a prefabricated manhole that can ensure a stable watertight after the completion of construction.

In addition, another object of the present invention is to provide a prefabricated manhole that can be carried out assembling work between the manhole blocks, which is a heavy object in a faster time.

In addition, another object of the present invention is to provide a prefabricated manhole that can significantly improve the watertightness with the strength by strengthening the rigidity against the torsional force in the vertical direction and the transverse direction after completion of construction.

The present invention for achieving the above problems and to eliminate the conventional drawback is composed of a lower manhole block, an upper manhole block and at least one extended manhole block coupled between the lower manhole block and the upper manhole block, In the prefabricated manhole laminated laminated up and down by the spigot and the socket formed to correspond to the coupling portion of the respective manhole blocks,

Fixing mounting groove formed on the upper surface of the lower manhole block;

Fixing through holes formed in the elongated manhole block and the upper manhole block;

A fastener having an end penetrating through the fastener through hole of the upper manhole block and the extended manhole block coupled to the fastener mounting groove of the lower manhole block; And

It is disposed in the coupling portion of each manhole block penetrates the fixture, and due to the coupling of each manhole block characterized in that it comprises a connection port is inserted into the upper and lower portions of the neighboring manhole block toward the bottom, .

At this time, the fixing groove mounting groove of the lower manhole block disposed below the connector or the upper surface of the fixing tool through hole of the elongated manhole block is formed with a connector mounting groove for mounting the lower end of the connector,

On the lower surface of the fixing tool through-hole of the extended manhole block or the upper manhole block disposed above the connector, a connector fitting groove into which the upper end of the connector is fitted is formed.

At this time, the fitting groove for the connector and guide groove forming a cone shape to guide the connector inserted from below; It is formed extending from the upper end of the guide groove, it is composed of a coupling groove that the upper end of the connection port is inserted from below.

From the above means, the present invention can complete the assembly construction of the ready-made manhole blocks that are integrally assembled by vertical stacking, and through a fastener fastening through each manhole block, strengthen the binding force between the manhole blocks for a long time Stronger rigidity can be secured from external forces acting toward the manhole in the buried state.

In addition, when assembling construction between the manhole block, due to the configuration of the connector and the fitting groove for the connection hole disposed between the manhole blocks, it is possible to easily implement the accurate position in the vertical direction and transverse direction of the manhole blocks to be assembled In addition, it can provide the convenience of construction work for the worker.

In addition, it is possible to prevent damage to the manhole due to frequent bumping of the spigot and the socket portion of the manhole blocks that are being assembled, thereby reducing the defect of the manhole block generated during assembly. Due to this, the correct position of the sealing member, which was interposed before the assembly construction, can be kept stable during and after the assembly construction, thereby preventing the problem of watertightness caused by the assembly failure.

In addition, along the height direction of the manhole made of a plurality of manhole blocks can maintain the evenly coupled state between each manhole block, it is possible to strengthen the reinforcement to the torsional force as a whole.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is an exploded perspective view of the prefabricated manhole according to the invention, Figure 5 is a cross-sectional view showing a combined state of the manhole shown in Figure 4, referring to Figures 4 and 5, as described above, Prefabricated manhole 100 according to the invention, has a connection port (110a) is connected to the tube (not shown), the lower manhole block 110 is blocked; A manhole cover (not shown) includes an upper manhole block 130 and one or more extended manhole blocks 120 coupled between the lower manhole block 110 and the upper manhole block 130, each manhole In the prefabricated manhole 100 is stacked up and down by the spigot and the socket formed on the opposite coupling portion of the blocks 110, 120, 130,

On the upper surface of the lower manhole block 110, a plurality of fastener mounting grooves 115 formed in the vertical direction are disposed at equal intervals along the circumference.

In addition, the elongated manhole block 120 and the upper manhole block 130 are provided with a plurality of fasteners 125 and 135 formed in the vertical direction at equal intervals along the circumference.

In addition, the end that penetrates the through-holes 125 and 135 for the fasteners of the extended manhole block 120 and the upper manhole block 130 in the vertical direction is provided with the fastener mounting groove 115 of the lower manhole block 110. A plurality of fasteners 150 are screwed to) is configured.

In addition, the manhole blocks 110, 120, 130 are disposed in the coupling portion and penetrates the fixing member 150, and the upper and lower sides of each of the manhole blocks 110, 120, 130 are combined with each other. It is configured to include a plurality of connection ports (161, 162) are inserted into the upper and lower portions of the neighboring manhole block.

At this time, the fasteners 150 are sidewalls of the manhole blocks 110, 120, 130 avoiding interference with the sealing members 101 disposed between the coupling portions of the manhole blocks 110, 120, 130. Pass through the center.

At this time, the fixing groove mounting groove 115 formed on the upper surface of the lower manhole block 110 may be an anchor-type nut that is pre-embedded and integrally formed when the lower manhole block 110 is manufactured, and the extended manhole block ( 120 and the fastener through holes 125 and 135 formed in the upper manhole block 130 may be formed of a pipe which is pre-embedded and integrally formed at the time of manufacturing the manhole blocks 120 and 130. In some cases, the through holes 125 and 135 for the fixture may be formed by drilling in the field.

Fixtures 150 according to the present invention are arranged at equal intervals along the circumference of each manhole block 110, 120, 130, evenly along the circumference of the engaging portion of each manhole block 110, 120, 130 In order to maintain one fastening state, the bar is configured four places along the circumference of the coupling portion, it may be provided with three or five or more.

Subsequently, the connection port 161, 162 according to the present invention, to prevent damage and damage caused by the impact of each of the engaging portion during the assembly work of each manhole block 110, 120, 130 to be stacked up and down, The reinforcement for the transverse torsional force of the manhole 100 assembled with the fixture 150 can be further strengthened.

That is, FIG. 6 is an enlarged view showing a detailed configuration of the 'A' main portion of Figure 5, Figure 7 is a enlarged view showing a detailed configuration of the 'B' portion of Figure 5, prefabricated according to the present invention The manhole 100 is connected to the upper surface of the fastener through-hole 125 (see FIG. 6) or the fastener mounting groove 115 (see FIG. 7) of the corresponding manhole blocks 120 and 110 disposed below. 161 are formed with mounting grooves 1250 'and 1150 for mounting the lower ends of the 161, respectively. That is, the connector 161, 162 has an inner hole extending into the fastener through hole 125 (see FIG. 6) or the fastener mounting groove 115 (see FIG. 7), and the fastener through hole 125 ) Or the lower end is seated in the connector mounting groove 1250 ′ 1150 formed on the extension line of the fixture mounting groove 115.

In addition, the fitting holes 1350 and 1250 for fitting the upper end of the lower fittings 162 and 161 are formed on the lower surface of the fixing holes through holes 135 and 125 of the manhole block disposed above. At this time, the fitting fitting grooves 1350 and 1250 are guide grooves 1351 and 1251 having a cone shape to guide the joints 162 and 161 inserted from below, and the guide grooves 1351 and 1251. It extends from the upper end of the), and is composed of coupling grooves 1352 and 1252 to which the upper end of the connector 162, 161 is inserted from below.

That is, when lifting and mounting the upper manhole blocks 130 and 120 toward the connection ports 162 and 161 seated in the mounting grooves 1250 'and 1150, the manhole blocks 130 being lifted. Even if an incorrect entry of the 120 is caused, the upper end of the connector 162, 161 is a cone-shaped guide groove 1351 formed in the fitting grooves 1350, 1250 of the manhole block 130, 120 1225, the entrance guide is guided, and then, as the manhole blocks 130 and 120 continue to descend, each connector 162 and 161 is precisely guided into the coupling grooves 1352 and 1252 to be finally fitted.

As described above, each of the connecting holes 162 and 161 fitted into the fitting mounting grooves 1250 'and 1150 and the fitting fitting grooves 1350 and 1250 respectively formed in the upper and lower neighboring lower and upper manhole blocks. Since the manhole blocks 110, 120, 130 are prevented from moving independently in the lateral direction (shearing direction), the manhole blocks 110, 120, 130 are moved from the lateral position movement between the manhole blocks 110, 120, 130 after assembly. It is possible to further strengthen the integrated coupling force of the manhole 100, which is stacked up and down, such as preventing the sealing member 101 from interposing and damaging and breaking the watertightness.

On the other hand, Figure 8 is an enlarged view showing the main portion for showing the coupling state of the connector according to another embodiment of the present invention, showing the configuration of the same connector 161, 162 as shown in FIG. . At this time, in the case of fitting fitting grooves 1250 and 1350 formed in the upper manhole blocks 120 and 130 into which the upper ends of the fittings 161 and 162 according to another embodiment are connected, 161, 162 guide grooves (1251, 1351) formed in the cone shape to guide, and the upper end of the connection port (161, 162) is formed extending from the top of the guide grooves (1251) 1351 and inserted from below The fitting grooves 1252 and 1352 are fitted; The coupling grooves 1252 and 1352 are maintained to have a tapered shape to face upward and to form an inner diameter d smaller than the outer diameter D of the connector 161 and 162. That is, when the upper manhole blocks 120 and 130 are lifted and assembled to the connecting holes 161 and 162, the connecting holes 161 toward the coupling grooves 1252 and 1352 of the upper manhole blocks 120 and 130 are mounted. 162 is forcibly fitted.

In the case of the connection ports 161 and 162 which are thus forcibly fitted, the resin may be made of a high density urethane or the like.

Hereinafter, the coupling construction of the manhole consisting of a lower manhole block, an extended manhole block, and an upper manhole block, and the action thereof will be described.

Figure 9 shows the construction sequence showing the assembly process in the field using each manhole block according to the present invention, the pre-manufactured manhole blocks pre-fabricated in the initial manufacturing plant, that is, the lower manhole block 110, extended manhole block ( 120), the upper manhole block 130 is moved to the site, first lifts and positions the lower manhole block 110 at the installation site, and then installs the sealing member 101 on the upper surface of the lower manhole block 110. Then, the connector 161 is seated in the connector mounting groove 1150.

Thereafter, the extended manhole block 120 is lifted and moved to fit the upper end of the connector 161. In this case, the extended manhole block 120 is formed in the fitting groove 1250 formed at the lower surface thereof. The center is guided toward the connector 161 by the cone-shaped guide groove 1251. Thereafter, the upper end of the connection port 161 is fitted into the coupling groove 1252 by the lowering of the continuous extended manhole block 120. In this way, the fitting coupling of the connector 161 is completed and at the same time, the stable coupling of the spigot and the socket formed on the coupling portion of each manhole block 110 and 120 and the securing of the stable position of the sealing member 101 are completed.

Subsequently, the sealing member 101 is installed on the upper surface of the extended manhole block 120, and the connector 162 is seated in the connection groove 1250 formed on the upper surface of the extended manhole block 120.

Thereafter, the upper manhole block 130 is coupled to the upper surface of the extended manhole block 120 in the same manner as the extended manhole block 120 is coupled to the upper surface of the lower manhole block 110.

After completion of the vertically stacked lifting operation between the manhole blocks 110, 120, and 130, the fixture 150 is assembled through the through hole 135 formed on the upper surface of the upper manhole block 130. . That is, the end of the fasteners 150 passing through the upper manhole block 130 and the extended manhole block 120 and the connecting holes 161 and 162 disposed in the coupling part in order for the fastener of the lower manhole block 110 The mounting groove 115 is screwed together.

The assembly state of the longitudinal direction of each manhole block (110, 120, 130) due to the screw tightening operation of the fixture 150 can be maintained more firmly, and each manhole block (110) (120) ( When the external pressure occurs toward the manhole 100 embedded for a long time through the connection port 161, 162 disposed in the coupling portion of the 130, the transverse direction due to the change of the position of each manhole block (110, 120, 130) It can further improve the rigidity of the torsional force.

In addition, the connector 161, 162 according to the present invention is disposed between the fixture 150 passing through each manhole block 110, 120, 130, the reinforcement function for the transverse direction of the fixture 150 It can be performed, even if a strong external force from the outside will be able to protect the weakness such as the fixture 150 is bent or broken.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

1 is an exploded perspective view of a conventional prefabricated manhole

Figure 2 is a cross-sectional view for showing a combined state of the conventional prefabricated manhole

Figure 3 is a perspective view for showing a combined state of the conventional prefabricated manhole

Figure 4 is an exploded perspective view for showing the configuration of the prefabricated manhole according to the invention

Figure 5 is a cross-sectional view for showing a combined state of the prefabricated manhole according to the invention

6 is an enlarged cross-sectional view of a separated (a) and combined (b) showing a detailed configuration of the 'A' main part of FIG.

7 is an enlarged cross-sectional view of a separated (a) and combined (b) showing a detailed configuration of the 'B' portion of FIG.

8 is an exemplary view for showing a coupling state of the connector according to another embodiment of the present invention

Figure 9 is a work flow chart for showing the assembly process of the prefabricated manhole according to the invention

<Description of the symbols for the main parts of the drawings>

100: (prefabricated) manhole

101: sealing member

(110): Lower manhole block

(115): Fixture mounting groove

(120): Extended Manhole Block

(130): upper manhole block

(125), (135): through hole for fixture

150: Fixture

(161) (162): Connection port

(1150), (1250 '): Mounting groove for connector

(1250), (1350): Fitting groove for connector

Claims (5)

It consists of a lower manhole block 110, the upper manhole block 130 and at least one extended manhole block 120 is coupled between the lower manhole block and the upper manhole block, mutually coupled to the coupling portion of the respective manhole blocks In the prefabricated manhole 100 laminated up and down by a spigot and the socket correspondingly formed, Fixing mounting groove 115 formed on the upper surface of the lower manhole block 110; Fixing through holes 125 and 135 formed in the elongated manhole block 120 and the upper manhole block 130; Ends passing through the fixing holes 125 and 135 of the upper manhole block 130 and the extended manhole block 120 are coupled to the fixing groove 115 of the lower manhole block 110. Fixture 150; And The manhole blocks 110, 120 and 130 are disposed in the coupling portion and penetrate the fixture 150, and due to the combination of each of the manhole blocks 110, 120 and 130, the upper and lower sides Connection ports 161 and 162 are inserted into the upper and lower portions of the manhole block to be inserted; Prefabricated manholes characterized in that consisting of. The method of claim 1, Lower ends of the connectors 161 and 162 on the upper surface of the fixture mounting groove 115 of the lower manhole block disposed below the connectors 161 and 162 or the through hole 125 for the fixture of the extended manhole block. The mounting groove mounting grooves 1150 (1250 ') are formed, Upper ends of the connectors 161 and 162 on the lower surfaces of the through-holes 125 and 135 for the fasteners of the extended manhole block 120 or the upper manhole block 130 disposed above the connector 161 and 162. Prefabricated manhole, characterized in that the fitting fitting groove (1250) (1350) is formed. The method of claim 2, The fitting fitting grooves 1250 and 1350 may include guide grooves 1251 and 1351 forming a cone shape to guide the connector fittings 161 and 162 inserted from below; Prefabricated manholes are formed extending from the top of the guide grooves (1251) (1351), the coupling grooves (1252) (1352) is fitted into the top of the connector (161, 162) inserted from below. The method of claim 3, The coupling grooves 1252 and 1352 have a tapered shape to face upward and to form an inner diameter d smaller than the outer diameter D of the connector 161 and 162. The method of claim 1, The through-holes 125 and 135 for the fasteners formed in the elongated manhole block 120 and the upper manhole block 130 are prefabricated manholes, characterized in that they are formed of pipes which are pre-embedded and integrally formed when the manhole blocks are manufactured. .

Images