KR100380286B1 - A tunnel steel materials mold concrete operation equipment - Google Patents

Abstract

The present invention is provided with a concrete pressure pipe connected from one side of the hopper to the rear along the concrete pump car one side, and provided with a rotating means for rotating left and right on the concrete pressure pipe end side, and is mounted on the rotating means Concrete pump car which is a self-driving wheel system by connecting a boom which is rotated up and down, and the concrete pump pipe linearly and linearly in a straight line from the boom end of the concrete pump car in order to sequentially connect the lower end of each steel formwork The concrete conveying pipes, hoses, etc. are inserted and poured into the pour hole by the connecting means to each steel formwork pour ball side, so that the concrete is poured. Concrete pump car When the concrete that is mixed into the hopper by stirring by mixing blade is transferred to the position to be placed through the concrete transfer pipe and the boom, the transfer distance can be configured as short as possible. It is possible to reduce the rebound amount of concrete remaining in the concrete conveying pipe after the completion of the pouring work, and to reduce the amount of concrete disposed of. The present invention relates to a steel formwork concrete pouring device for tunnels so as to efficiently respond to working conditions.

Description

A tunnel steel materials mold concrete operation equipment

The present invention relates to a steel formwork concrete pouring apparatus for tunnels for pouring concrete into the steel formwork after the steel formwork is formed in the tunnel together with the excavation work of the tunnel. When the concrete to be mixed by stirring by mixing blades is transferred to the position to be placed through the concrete transfer pipe and boom, the transfer distance can be configured as short as possible. It is possible to reduce the rebound amount of concrete remaining in the concrete conveying pipe after the completion of pouring work, and to reduce the amount of concrete disposed of, and to use the wheel system of concrete pump cars for pouring. Efficient for working conditions It relates to a steel formwork concrete pouring apparatus for tunnels to be able to cope with.

When constructing a tunnel, a rock-shaped arch rib of H-BEAM is installed at regular intervals while the rock is excavated by blasting, and a wire mesh is placed on the rock wall to dry it. After forming the first support by the so-called shotcreting method that injects a mixture of sand, gravel and cement and sprays water through a separate nozzle, the first is to bury the rock bolt and then After the drainage and waterproofing membranes are placed on the surface of the shotcrete layer, the tunnel is completed by laying lining concrete layers using huge cylindrical formwork.

At this time, the equipment used to pour the concrete layer is mainly used by the concrete pump car, the concrete pump car is equipment used in the construction site, the concrete transported from the ready-mixed concrete truck to the hopper formed on the rear of the concrete pump car Filter means such as grids or gratings for accommodating and agitating by mixing vanes formed therein and preventing large aggregates and other inflows mixed with concrete from entering the upper portion of the hopper. The concrete accommodated in the hopper is pushed horizontally or vertically to the portion to be poured through the concrete transport pipe by the discharge pressure of the reciprocating cylinder driven by the hydraulic converter.

These concrete transfer pipes generate considerable shock and vibration during the concrete placement work. Meanwhile, the concrete transfer pipe is sent from the place where the concrete pump car stops to the concrete placing area through the concrete transfer pipe. Since it is pumped to a far distance or a high position in the concrete pump car, it is possible to adjust the height by connecting a plurality of concrete transport pipes, where each concrete transport pipe is fixedly connected by a coupling and the coupling is coupled to the transport pipe support boom The concrete received in the hopper of the pump car is introduced into the concrete cylinder and is pumped to the concrete conveying pipe by the piston, and the force pushing the piston is transmitted from the plunger cylinder operated by the hydraulic oil from the hydraulic pump. , Concrete above Cylinder and the plunger cylinder is in the conventional structure in which pressure-feeding the concrete, repeating in two on each there is formed alternately to the suction and pressure-feeding stroke.

On the other hand, the boom to be struck from the concrete conveying pipe to adjust the concrete placing height is usually the cylinder rod is hinged to the boom in the second stage and the third stage boom, while the cylinder housing through the hinge bracket on the lower boom It is hinged.

Using a concrete pump car configured as described above to form a tunnel by pouring concrete into the steel formwork installed after the excavation work of the tunnel, briefly outlined the tunnel construction method.

In general, the tunnel is constructed through a process such as excavation-> reinforcement-> installation of concrete lining, the concrete lining is usually installed according to the cast-in-place lining method.

That is, in-situ lining method is to cast a reinforcing shockcrete (shotcrete) on the rock excavation surface of the excavated tunnel, attach the non-woven fabric and waterproof sheet to the outer surface of the shockcrete, and then through the lining foam to the concrete inside Inject and cure to form a lining of 30 ~ 40 cm, the effluent from the tunnel is to be drained between the non-woven fabric and the waterproof sheet.

In order to form the tunnel lining as described above, the steel formwork is installed to maintain a predetermined distance from the tunnel, the reinforcing bar assembly is located in the space between the tunnel wall and the formwork, the concrete between the tunnel wall and the formwork is filled with concrete lining This is done.

If the tunnel lining formwork system is described briefly with reference to Figure 3, the steel formwork 110 having a cross-sectional shape of the contour similar to the tunnel cross-section and a plurality of concrete placing holes 111 formed at regular intervals at its top end. ) And a concrete transfer pipe composed of a concrete transfer pipe 220 introduced from a concrete pour device (concrete pump car) and a vertical transfer pipe connecting the top end pour hole 111 to the concrete transfer pipe 220, respectively. do.

Concrete is supplied to the top end pour hole 111 of the steel formwork 110 through the concrete pressure pipe (220), the concrete is supplied to the pour hole 111 as shown in Figures 2 and 3 Flowing down along the outer circumferential surface of 110 to fill the space between the tunnel wall and the formwork 110 is completed concrete pouring, after a predetermined time curing process, the tunnel lining is formed by demolding, as described above In the excavation process, the concrete is sprayed and adhered to the excavation surface, and the concrete to be sprayed in this way is called shotcrete. Shotcrete cooperates with the surface layer of the base to prevent cracking of the base by stress concentration, to prevent weathering, and to stabilize after excavation. Such shotcrete work is carried out in a unit of distance as the tunnel excavation proceeds, and after tunnel excavation is completed, a hollow hole is performed to smooth the inner surface of the tunnel.

The shotcrete placing method is classified into dry and wet according to the state of the material. Dry shotcrete is pressurized dry mixed materials such as cement, aggregate, and fastener into the hose by compressed air into the hose or immediately before the nozzle or the like. The wet shotcrete refers to the method of spraying wet mixed materials kneaded with cement, aggregate, water, etc. with a pump or air, and then adding and adding a fastener near the nozzle to spray the nozzle (i.e. It has been poured by spraying through a tube).

On the other hand, the construction is also performed by the foam concrete method of pouring concrete to form, the foam concrete method can be said to complement the problem of the shotcrete method.

The most basic in constructing the tunnel is the installation of the steel formwork 110, the tunnel wall to prevent the collapse of the excavated tunnel inner circumferential wall, as shown in Figure 2 to permanently support the floor One long concrete structure, tunnel lining 120 is constructed. Tunnel lining 120 is generally long, so it is practically impossible to cast concrete for the entire section at a time, and a span (SPAN) while moving and repeatedly removing and installing the steel formwork 110 of a suitable length (SPAN) It can also be constructed by connecting the concrete of the segment in turn, such as the mobile formwork is composed of the steel formwork (110) main body for concrete placement and its moving equipment and the hydraulic operation equipment for its installation and demoulding The steel formwork 110 is formed to correspond to the cross-sectional shape of the excavated tunnel wall or short concrete inner circumferential wall recirculated there as a primary support material, and the crown portion 113 and the left and right side walls and left and right sides for demoulding. It is divided into both ends. Each part of the steel formwork 110 supports the steel slab 112 for receiving and supporting the poured concrete, and the ribs 115 and the ribs 115 connected to the hinges 114 to be deflectable to each other are stabilized. It is composed of a strip 116 and a sabot steel 117 constructed by using a steel beam to support the structure as a hydraulic operation equipment for installing and demolding the steel formwork 110, each part of the steel formwork 110 and the bogie frame 119 A plurality of hydraulic jacks 118 are connected therebetween, and when the demolding, both ends and the left and right side wall portions of the steel formwork 110 are sequentially rotated, and then the plurality of hydraulic jacks 118 are gradually operated so that the crown portion 113 is lowered. The installation works in reverse order.

Therefore, the construction of the tunnel by the other methods as described above, the equipment for pouring concrete into the steel formwork 110 is installed as described above is the concrete pump car 200, the concrete pump car 200 In the related art, after excavating a tunnel as shown in FIGS. 6 to 8, the steel formwork 110 is installed, and then the concrete pump car 200 is moved to the outside of the steel formwork 110. The concrete conveying pipe 220 is installed from the hopper 210 of the 200 is to be installed.

In this case, as shown in FIG. 7, the steel formwork 110 is generally installed by dividing the unit steel formwork 110 having a predetermined length (approximately 3 m) into three stages and placing concrete. The concrete conveying pipe 220, which is delivered from the hopper 210, is arranged in a straight line, vertically and horizontally while being connected to the site where the concrete is to be placed (most front in the drawing), but connected along the side of the steel formwork 110. The primary conveying pipe 221 is installed, and the second concrete conveying pipe 222 orthogonal from the first concrete conveying pipe 221 using the connecting means 260, such as elbow, is connected to the vertical direction to form a steel die ( 110 and then fixed to the steel formwork 110 using the bending means 270 by horizontally extending the third concrete transport pipe 223 to the upper central point of the steel formwork 110. The.

Then, the hose is connected to the end of the third concrete transfer pipe 223 through a pour hole 111 perforated in a portion where the short length of the transfer pipe vertically connected or connected to the hose 224, etc. After the 224 is inserted into the hopper 210 of the concrete pump car 200, the concrete which is lowered in the ready-mixed concrete is stirred by a mixing blade (not shown) in the hopper 210 and the like, and is alternately connected in the above-described vertical direction. The concrete is poured into the steel formwork 110 through the first, second, and third concrete conveying pipes 220 (221, 222, 223).

When the concrete placing process is completed in one section as described above, the worker remaining in each concrete transfer pipe 200 in the state in which the first, second, third concrete transfer pipes (220; 221, 222, 223) are removed After collecting all and clean the inside of the concrete conveying pipe 200 connected to the hopper 210 of the concrete pump car 200 clean, install the steel formwork 110 in the next section and the concrete pump car by the method as described above From the hopper 210 of the 200, the first, second and third concrete conveying pipes 221 to 223, which are concrete conveying pipes 220, are formed to be bent several times using the connecting means 260 to a predetermined position. After the transfer pipes (221 to 223) are installed, the concrete is repeatedly poured into the steel formwork (110).

That is, the concrete pump car 200 that is requested to do the work as described above is implemented by adopting and employing the concrete pump car 200 as shown in Figs. 6 to 7 bar, as shown in the drawing of the mobile concrete pump car The concrete transfer pipe 220 is directly connected from the hopper 210 so that the concrete is poured into the steel formwork 110 in a state in which the concrete transfer pipe 220 is bent and installed.

However, when the concrete is poured as described above, several problems are raised.

That is, the overall length of the concrete conveying pipe (220; 221, 222, 223) connected from the hopper 210 of the concrete pump car 200 is bent and connected several times, and at the same time can not only be connected to a long length of considerable, the driving force of the concrete pump car 200 Of course, there is a problem that the load applied to the motor (not shown) of the pump (not shown) is significantly reduced and the service life of the concrete pump car 200 is significantly reduced, and also the concrete into the steel formwork 110 is provided. When the pouring process is completed, in order to pour concrete into the steel formwork 110 to be installed in the next section, all of the first, second, third concrete conveying pipes 220; After removal, perform the task of spilling the remaining amount of concrete cleanly, and placing new steel formwork (110) to be poured again. The first, second, and third concrete transfer pipes (220; 221, 222, 223) to be newly installed as the ball 111, so that the air is significantly delayed according to the process, as well as the cumbersome and cumbersome work must be repeated There is a disadvantage.

That is, as shown in Figure 7 of the first, second, third steel formwork (110; 130, 140, 150) is formed of a plurality of steel formwork 110 in one section is installed in the farthest distance from the concrete pump car 200 When the concrete pouring process is completed in the steel formwork 150, after removing all the concrete conveying pipes 220 that are addressed from the concrete pump car 200 and collecting all the remaining amount of concrete remaining in the concrete conveying pipe 220 Next, the first, second, and third concrete conveying pipes (220; 221, 222, 223) to the pour hole 111 of the second steel formwork 150 using the connecting means 260 after connecting several times through the joint Since the concrete should be poured work, there is a problem that the working time is considerable.

In addition, the amount of concrete (rebound rate) of the residual amount discharged from the first, second, and third concrete transfer pipes 220 (221, 222, 223) is considerable, and the amount of the remaining amount of concrete is poured into the steel formwork 110 every time after placing the concrete. The concrete conveying pipe (220; 221, 222, 223) from the steel formwork of the old steel formwork (for example, when the concrete is placed in the second steel formwork 140 after completion of the pouring work of the third steel formwork 150) Since the removal and installation of and the residual concrete remaining in the interior must be repeatedly performed, the remaining amount of concrete is disposed of and discarded, so that the amount of waste is considerable, which causes a significant increase in construction cost.

In addition, since the installation and removal of the concrete conveying pipe 220 must be repeatedly performed as described above, the amount of concrete placement per day and the progress speed of the tunnel placing air are inevitably lowered, so that the delay of the overall air can be avoided. In addition to the problems, such as the increase in labor costs, as well as the significant increase in construction cost, and the problem that the work is very complicated and uncomfortable has been pointed out.

In addition, by the above method, concrete is poured only into the arch form steel formwork 110, and concrete placing work for the structure of the lower and lower ends of the steel formwork 110, such as the drainage side, uses a separate equipment, etc. Since it is necessary to pour the concrete by the concrete supplied by the vehicle, it is necessary to use excessive equipments excessively, as well as the problem of the delay of work, delay of air and increase of personnel and construction cost as described above. (See Figure 9 in Figure Substitute)

Fig. 9 is a drawing substitute photograph showing that concrete is cast by a conventional method on formwork such as a drainage track.

On the other hand, since the concrete pump car required for the pouring process is mainly moved by the wheel movement method provided with the wheels 201, when the worker completes the predetermined work in the state in which the concrete pump car is located outside the steel formwork There has been a very inconvenient problem in work such as having to place the concrete pump car in a fixed position by transferring it to a vehicle for transporting the concrete pump car again.

On the other hand, as shown in FIG. 8, a self-propelled concrete pump car mounted on a vehicle such as a truck 1 may be adopted, and a concrete conveying pipe 2 is provided at the rear of the concrete pump truck 1. The frame-shaped boom (3) that is supported and fixed is folded, and the boom (3) is unfolded so that the concrete conveying pipe (2) is extended and pressurized to the point where concrete is poured. The lower portion of the rear of the concrete pump truck (1) has a structure in which a concrete pumping device (4) for accommodating and transporting the concrete transported from the ready-mixed concrete and then pumped through the concrete transport pipe (2).

However, in the case of such a structure, the length of the vehicle body is considerable and is mainly applied to the concrete placing position such as high position (high rise building), such a concrete pump car is generally not adopted as a problem in the use of the tunnel construction.

Therefore, the present invention has been made to solve the above problems, the object of the present invention is to facilitate the casting of concrete in the steel formwork 110 when the concrete lining construction after tunnel excavation has a fundamental object of the present invention In addition, by minimizing the length of the concrete transport pipe 220 from the concrete pump car 200 to the pouring position connected to the maximum as possible to minimize the rebound rate of the concrete, installation of the concrete transport pipe 220 is stepped bend There is another purpose to facilitate the installation of the concrete transport pipe 220 before the worker to exclude the source.

In addition, the present invention is to prevent the additional elements of the equipment by excluding the separate transport vehicle by allowing the operation of the concrete pump car 200 for pumping concrete into the steel formwork 110 to facilitate its operation in advance. In addition, it can be operated by electronic control according to the usual method from the outside, so that it can be easily carried out when concrete is to be placed in a relatively dangerous area or a difficult place to work. There is an object of the invention.

In addition, the present invention not only concrete placing work into the steel formwork 110, but also to the concrete, such as the drainage formed in the lower end of the steel formwork both ends 110 to be able to pour concrete to perform all concrete pouring process by one equipment. Another purpose is to achieve a significant reduction in construction costs due to the need for other equipment.

The present invention for achieving the above object,

In the installation of a plurality of steel formwork (110) formed in the tunnel in a predetermined length by the concrete pump car 200 after the tunnel excavation construction and in order to pour concrete in the steel formwork 110,

Rotating means for providing a concrete pump pipe 230 connected from one side of the hopper 210 to the rear along the one side surface of the concrete pump car 200, so as to rotate left and right on the end side of the concrete pump pipe 230 ( And a concrete pump car 200 having a four-wheel method, which is connected to a boom 240 mounted on the pivoting means 250 and pivoted up and down, and

A pour hole 111 formed at a lower end of each steel formwork 110; 130, 140, and 150 by sequentially associating a predetermined linearly conveyed concrete conveyance tube 220 in a straight line from the end of the boom 240 of the concrete pump car 200. After the fixed position up to the position of each steel die (110; 130, 140, 150) to the pouring hole 111 side by the connecting means 260, the concrete conveying pipe, hose 224, etc. are inserted into the pouring hole 111, It is characterized in that the pouring.

1 is a schematic perspective view of a self-propelled concrete pouring pump car in the state where the present invention is adopted,

Figure 2 is a schematic perspective view showing the concrete pouring into the steel formwork of the tunnel according to the present invention,

3 is a schematic cross-sectional view showing a state of the formwork system installed in the tunnel,

FIG. 4 is a schematic cross-sectional view showing concrete pouring for each section by FIG. 2;

5 is a schematic cross-sectional view showing the concrete is poured on the drainage side of the tunnel,

Figure 6 is a schematic cross-sectional view showing the installation for pouring concrete into the steel formwork by the conventional concrete casting pump car.

FIG. 7 is a schematic perspective view of FIG. 6;

8 is a schematic front view of a conventional self-propelled concrete pump car.

FIG. 9 is a photograph showing that concrete is poured using a vehicle such as ready-mixed concrete to the drainage side of both lower ends of steel formwork.

※ Brief description of the major symbols in the drawings

110: steel die 111: pour ball

112: steel sheet sleeve 113: crown portion 114: hinge 115: rib

116: strip 117: sabo steel 118: hydraulic jack 119: bogie frame

120: tunnel lining 130: first steel formwork 140: second steel formwork

150: third steel die 200: concrete pump car 210: hopper

220: concrete transport pipe 221: first concrete transport pipe 222: second concrete transport pipe

223: third concrete transport pipe 224: hose 230: concrete pressure pipe

240: boom 250: rotating means 260: connecting means 261: "T" type pipe

262: elbow 270: bending means

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

1 is a schematic perspective view of a self-propelled concrete pouring pump car in the state where the present invention is adopted, Figure 2 is a schematic perspective view showing the concrete pouring into the steel formwork of the tunnel according to the present invention, Figure 3 is a formwork installed in the tunnel Figure 4 is a schematic cross-sectional view showing the state of the system, Figure 4 is a schematic cross-sectional view showing the concrete in each section by the Fig. 2, Figure 5 is a schematic cross-sectional view showing the concrete in the drainage side of the tunnel.

As shown in the drawings, the present invention provides a concrete pump car 200 for placing concrete in the steel formwork 110 for implementing the concrete lining 120, and a concrete conveying pipe 220 that is addressed from the concrete pump car 200. And after placing the concrete conveying pipe 220 to the lower end of the concrete conveying pipe 220 and the steel formwork 110 in a straight line "T" shaped joint pipe 261 at the position of the pour hole of the steel formwork (110) And the hose 224 or the concrete conveying pipe having a predetermined length by the connecting means 260 such as the elbow 262 to the pour hole 111 to pour the concrete.

The concrete pump car 200 has the same purpose as the prior art, the configuration is also similar to the conventional but to replace the wheel system of the concrete pump car 200 independence and concrete transfer pipe 220 connected from one side of the hopper 210 Concrete pump car 200 is installed on the outer periphery side and its end is installed with a concrete pressure pipe 230 of a relatively short length in a vertical direction using an orthogonal connection means such as elbows, and 360 ° left and right rotating means ( 250 is formed, and the boom 240 which is rotated up and down by the operation of the hydraulic cylinder etc. which is not shown in the upper end of the rotating means 250 is provided.

That is, as shown in FIG. 1, the wheel system is formed in a self-propelled manner by the endless track 290, and has pinion-shaped wheel means 260 at both ends, and forms a frame 270 for supporting the vehicle body therein. One or two rollers 280 are engaged with the endless track 290 at the upper end of the frame 270, and a plurality of rollers 280 are engaged with the endless track 290 at the lower end of the frame 270. ) May be provided.

In addition, the concrete pump car 200 is connected to one side of the hopper 210 and the hopper 210 for agitating the concrete to be lowered from the ready-mixed concrete, etc. by the mixing blade (not shown) to feed the concrete introduced into the hopper 210 Concrete pump pipe 230 for the shape surrounding the concrete pump car 200 to the outer peripheral side so as to be formed in the other side of the vehicle body opposite side opposite to the hopper 210, and thus the concrete pressure pipe 230 end of the elbow or the like After the concrete pressure feeding pipe 230 having a relatively short length is formed in the vertical direction by the connecting pipe 231, a rotating means 250 that can rotate left and right is provided at an end thereof, and a boom (from the rotating means 250 is provided). 240 is installed so that it can be rotated up and down by the operation of a hydraulic cylinder (not shown), and the portion to be placed concrete from the end of the boom 240 (for example, steel The connection arrangement to place the concrete feed pipe 220 to the pouring of the casting hole of the die or a multiple pujip side across the lower end position) so that the cast-in-place concrete.

The reason for doing this is that when the concrete is poured into the steel formwork 110, the concrete conveying pipe 220 from the end of the boom 240 to the steel formwork 110 to the pour hole 111 in a state in which the boom 240 is upright. ) To facilitate the installation, and to minimize the installation length of the concrete transport pipe 220 is installed from the concrete pump car 200 to the pour hole 111 formed in the lower end of the steel die (110) upper end of the In addition, in addition to the work of placing concrete in the steel formwork 110, in the case of concrete pouring into the drainage formwork 160, which is formed on both ends of the steel formwork 110, only the operation of the boom 240, such as a hydraulic cylinder Rotate the boom 240 to the placing position by using the pivoting means 250 in a state where it is positioned horizontally by the concrete transport pipe of the predetermined length at the end of the boom 240 or Switch 224 is to allow the connection to the pipe installation, relatively simply a multiple die 160 side, etc. can be easily carried out the process of the concrete.

In this case, it is preferable that the rotation means 250 adopt a turntable commonly used in construction sites, etc., and employ a planetary gear in addition to the turntable so as to be able to rotate left and right, and further, by using a ring gear or the like. It can be rotated left and right, and the adoption can be mutually changed depending on the construction site and working conditions.

Concrete pump car 200 configured as described above is preferably to be driven by electronic control, for example, the forward, backward, left and right movement of the concrete pump car 200 and the operation of the pump and the rotation means 250 such as turntables The rotation control and the operation of the boom 240 and the like are configured to be remotely operated, and the configuration according to the control follows a conventional method.

In this way, the concrete pump car 200 is provided with a concrete conveying pipe 220 connected to a predetermined position from the end of the boom 240 to the position of each steel formwork 110 and the pouring hole 111 to be placed, do.

Hereinafter, an embodiment of the present invention will be described.

First, when the excavation work of the tunnel is completed by an excavator or the like, the steel formwork 110 is completely adhered to the tunnel wall surface by the operation of the hydraulic jack 118 using the bogie frame 119 to lin the wall of the tunnel. The steel formwork 110 is installed as shown in FIG. 3 to maintain the space in which concrete is to be poured.

At this time, the installation length of the steel formwork 110 is usually about 9m as shown in Figures 2 and 4, forming a three-m spacing each divided into three equal lengths, the steel formwork 110 of the arch shape is separated In the state where the bar is formed to be installed on the tunnel wall side, the section is normally assumed to be 9m three steel formwork 110 is connected to form the installation in succession to form the first, second, third steel formwork (110; 130, 140, 150), Each of the steel formwork 110, the pour hole 111 for placing concrete to the lower end portion is to be perforated.

When the installation of the steel formwork 110 is completed as described above, in the state in which the concrete pump car 200 is in close proximity to the front of the steel formwork 110 (the first formwork 130 on the drawing), the hopper of the concrete pump car 200 ( Steel boom 240 formed of the upper end of the rotating means 250 (normal turntable, ring gear, planetary gear, etc.) connected to the concrete pump pipe 230 connected to the concrete pump car 200 side 210 is formed ( After the operation of the height of the 110, that is, up to a predetermined height by a hydraulic cylinder (not shown) to the lower end position of the steel formwork 110, the concrete conveying pipe 220 from the end of the boom 240, each steel formwork (110; 130, 140, 150) to be fixed to the steel formwork using the bending means 270 in the state located on the lower end side of the upper (110).

At this time, each of the steel formwork 110 (the first steel formwork 130, the second steel formwork 140, the third steel formwork 150) to the bottom of the upper end of the concrete conveying pipe 220 in a straight line to the speech The first concrete transfer pipe 221 is installed from the boom 240 to the position of the pour hole 111 formed in the first steel formwork 130 among the respective steel formwork 110; The second concrete conveying pipe to the pour hole 111 of the second steel formwork 140 by being delivered from the first concrete conveying pipe 221 using a means 260 (for example, a “T” shaped joint pipe 261). 222 is installed to be positioned, and similarly, after installing the "T" shaped joint pipe 261 which is one of the connection means 260, it is finally made again to the pour hole 111 of the third steel formwork 150. After the concrete transfer pipe 223 is installed in a straight line, the final third concrete The third concrete transfer pipe 223 and the second concrete transfer pipe 222 are connected to each other using a connecting means 260 such as an elbow 262 from the transfer pipe 223, and each concrete transfer pipe 220, 221, 222, 223 is banded. The means 270 and the like to be firmly fixed to the bottom of each steel formwork (110; 130, 140, 150).

At this time, the connection means 260, that is, a concrete conveying pipe or hose 224 of a short length from the upper portion of each of the "T" shaped joint pipe 261 and the elbow 262 on the side of the third steel formwork 150, etc. After completing the pouring preparation by squeezing to the pouring balls 111 of the respective steel dies 110, as shown in the drawing, only the pouring balls 111 of the third steel dies 150 are opened and The pour hole 111 of the first and second steel dies 130 and 140 drives the concrete pump car 200 in a state in which it is kept in a closed state, and the concrete is pumped from the hopper 210 so that the concrete pumping pipe ( The concrete is poured into the third steel formwork 150 at a predetermined pressure along the concrete conveying pipe 220 via the 230 and the boom 240.

When the casting work of the concrete is completed in the third steel formwork 150, the concrete transport pipe of the relatively short length that is sealed to the pouring hole 111 of the third steel formwork 150 to the pouring hole (111). Alternatively, after removing the hose 224, the third concrete transfer pipe 223 is removed from the second concrete transfer pipe 222, and one end of the “T” shaped joint pipe 261, which is the connecting means 260, is sealed. After the connection to the pour hole 111 of the steel die 140, such as the hose 224, and then drive the concrete pump car 200 again to pour the concrete in the second steel die (140), the second steel die When the concrete pouring work is completed in 140, remove the hose 224 or the short length of the concrete conveying pipe connected from the connecting means 260, such as "T" shaped pipe 261, as described above, , The second concrete transfer pipe 222 to the first concrete transfer pipe 221 After removing from the sealing the pouring hole 111 of the second steel die (140).

As such, when the pouring process of the third and second steel dies 140 and 150 is sequentially completed, the concrete is finally poured into the first steel dies 130. As described above, the first concrete transfer pipe 221 The concrete pump car 200 is driven in a state in which one end of the “T” shaped joint pipe 261 such as the connecting means 260 connected to the end is sealed, thereby placing concrete into the first steel formwork 130. Upon completion, the pouring hole 111 of the first steel die 130 is sealed and the first concrete transfer pipe 221 is removed from the “T” shaped joint pipe 261 and the boom 240 to perform the pouring process. You are done.

On the other hand, the concrete may be poured simultaneously into the first, second and third steel formwork 130, 140 and 150 through the "T" shaped joint pipe 261, thereby significantly reducing the pouring work air. .

Here, reference numeral 264 is a stopper for preventing the concrete from leaking to the outside during the casting work such as steel formwork through the hole formed in one end or vertical direction of the "T" shaped joint pipe.

On the other hand, the third steel steel formwork in a straight line by using the connecting means 260, such as the nipple pipe 263, the concrete conveying pipe (220; 221, 222, 223) associated from the boom 240 of the concrete pump car 200 After the associative speech up to the location of the pouring hole 111 of 150, the pouring process of the third steel formwork 150 using the connecting means 260 such as the elbow 262 at the end of the third concrete conveying pipe 223 After completing the, the third concrete transfer pipe 223 is removed from the second concrete transfer pipe 222, and then the elbow 262 is fastened to the end of the second concrete transfer pipe 222, the second steel die ( It is possible to pour concrete after inserting the hose 224 connected from the elbow 262 to the pour hole 111 of the 140, the above process is carried out in the process of pouring the first steel formwork 130 The same method can be adopted and adopted in the same manner, which can provide a simplification of work and speed. .

At this time, each of the steel dies 140, 150 can be carried out by the same concrete pump car 200 side drainage formwork 160 formed on both ends of the lower end side bar, as shown in Figure 5, only concrete After rotating the boom 240 of the pump car 200 at a predetermined angle so as to be positioned above the drainage mold 160 to be placed by using the pivoting means 250, the boom 240 is moved to a hydraulic cylinder (not shown). After the horizontal adjustment using the boom 240 in the hopper 210 by the drive of the concrete pump car 200 in a state where it is placed to the position to be placed by connecting a concrete transfer pipe or bellows hose 224 of a certain length, etc. The concrete is stored from the ready mixed concrete mixed with agitation to form a drainage path to form a drainage path to form the concrete to be poured.

That is, according to the present invention, when pouring concrete into the drainage formwork 160 such as a drainage line, the lining of the steel formwork 110 using the concrete pump car 200 according to the present invention without placing using a separate ready-mixed concrete. The steel formwork lining can be done at the same time or after the preliminary work.

Therefore, according to the present invention, in a state in which the tunnel lining work for placing concrete in steel formwork installed after tunnel excavation work is carried out from the concrete pump car hopper and boom of the concrete pump car to a placing position where concrete is to be placed Since it is possible to pour the work, the rebound rate of the remaining amount of concrete remaining in the concrete transfer pipe after the completion of the concrete can be minimized, and thus, there is a merit that the reduction of raw materials can be realized substantially. It can be expected to significantly reduce the construction cost due to the reduction.

In addition, according to the present invention, the boom of the concrete pump car can be driven vertically or horizontally to facilitate the concrete pouring in the steel formwork, as well as to mobilize a separate frame-construction vehicle, such as the lower end of the steel formwork Overcoming the end of placing concrete in formwork such as drainage, the concrete pump car according to the present invention enables the casting work of concrete into the formwork of the drainage, such as the above, the rental cost of work means or other by using separate equipment There is an advantage that can considerably save time due to replacement of work equipment.

In addition, according to the present invention, after installing the steel formwork of the section, the concrete transport pipe is arranged in a straight line to the lower end of the steel formwork in the state in which the concrete pump car is moved to the front side of the front formwork and is formed on the lower part of each steel formwork. Concrete that is placed in each steel formwork at the same time as concrete is poured from steel formwork to remote steel formwork in the structure that connects concrete transfer pipe or hose vertically through joint pipe etc. The process of removing the conveying pipe and the joint pipe is carried out sequentially, and if the concrete conveying pipe between the steel formwork is installed from one concrete pump car, the concrete is continuously transferred into the steel formwork until the concrete pouring process in the section is completed. We can pour and are the same as before When the casting work is completed in one formwork, all the concrete conveying pipes can be removed, all the remaining concrete in the concrete conveying pipes can be removed and cleaned, and the process of re-installing the concrete conveying pipes in the steel formwork to be poured again can be deleted. It can be expected to be very effective to greatly reduce the air of the work, and can also significantly reduce the amount of remnant (rebound rate) of the remaining amount of concrete, which is very useful, such as a significant reduction in the raw materials of concrete, Economical advantages can be expected, and the unnecessary process of concrete placing work can be eliminated, and the effect can be expected to be very convenient.

In addition, according to the present invention, by allowing the concrete pump car to be controlled by the electronic control method to allow remote control, it is possible to increase the productivity significantly by allowing concrete pouring work even in a place where the ready-mixed concrete vehicle, etc. difficult to locate You can expect advantages.

Claims (8)

In the installation of a plurality of steel formwork (110) formed in the tunnel in a predetermined length by the concrete pump car 200 after the tunnel excavation construction and in order to pour concrete in the steel formwork 110, A concrete pump pipe 230 connected from one side of the hopper 210 is provided to be extended to the rear along one side of the concrete pump car 200, and a pipe connected vertically to an end side of the concrete pump pipe 230 ( 231, and a rotating means 250 to rotate left and right at the end of the connecting pipe 231, and is connected to the boom 240 mounted on the rotating means 250 and rotated by a predetermined angle up and down. Concrete pump car (200) that is a self-propelled wheel system A pour hole 111 formed at a lower end of each steel formwork 110; 130, 140, and 150 by sequentially associating a predetermined linearly conveyed concrete conveyance tube 220 in a straight line from the end of the boom 240 of the concrete pump car 200. After the fixed position up to the position of each steel die (110; 130, 140, 150) to the pouring hole 111 side by the connecting means 260, the concrete conveying pipe, hose 224, etc. are inserted into the pouring hole 111, Steel formwork concrete pouring apparatus for tunnels, characterized in that the configuration to be poured. The method of claim 1, Concrete transport pipes (220; 221, 222, 223) to the pour hole 111 position of each steel die (110; 130, 140, 150) connecting means 260 first and second concrete transport pipes (221, 222) steel formwork (110) After associating and using the bending means 270, etc. in the upper lower end, the concrete conveying pipe or hose 224 of a predetermined length is connected to the placing hole 111 from the connecting means 260, and the last steel Pipe the third concrete transfer pipe 223 to the pour hole 111 of the formwork (third steel die) 150, and then the hose 224 and the like from the connecting means 260 such as the elbow 262 to the end thereof. By using the associative communication up to the pour hole 111, the concrete supplied from the concrete pump car 200 is the last stage steel formwork (third steel formwork) 150 from the front end steel formwork (first steel formwork) 130 Sequentially pouring concrete, and the steel formwork (110; 130, 140, 150) of the completion of pouring Steel formwork placing device for a tunnel comprising the concrete means is poured by sequentially removing the connection means 260 and each concrete transport pipe (220; 221, 222, 223). The method of claim 2, Connection means 260 such as an elbow 262 at each end of the third concrete transfer pipe 223 is connected to each concrete transfer pipe 220 through a connecting means 260, which is a nipple tube 263, between the concrete transfer pipes 220 and 221. By the third steel formwork 150, the casting hole 111, the hose 224, etc. to be in communication with each other after completion of the concrete pouring, the nipple pipe 263 connecting the concrete conveying pipe (220; 221, 222, 223) and the steel is completed The connecting means 260 and the hose 224 by the elbow 262 to the end of the concrete transport pipe 220 on the steel formwork 110 to remove and cast the concrete transport pipe 220 of the formwork 110 section The steel formwork placing device for the tunnel, characterized in that it is repeatedly carried out over the steel formwork section 110 after the concrete to be poured up to the pouring hole (111). The method of claim 1, The steel formwork placing device for a tunnel, characterized in that to pour the concrete to the divided steel formwork (110; 130, 140, 150) by using the connecting means 260 as a "T" shaped joint pipe (261). The method of claim 1, The drive of the concrete pump car 200 and the operation of the boom 240 and the rotation means 250 is steel formwork pouring device for tunnels, characterized in that for remote operation by electronic control. The method of claim 1, The rotating means 250 is a steel formwork pouring device for the tunnel, characterized in that consisting of a turntable. The method of claim 1, The rotating means 250 is a steel formwork pouring device for the tunnel, characterized in that configured by the ring gear. The method of claim 1, The rotating means 250 is a steel formwork pouring device for the tunnel, characterized in that formed by a planetary gear.