KR102091315B1 - Precast ventilating slab and middle slab construction method in mulltiple stored tunnel - Google Patents

Abstract

The present invention makes it possible to safely and stably raise and rotate the wind degree slab and the middle slab at different heights, thereby enabling installation at the corresponding position, and precasting in a multi-layer tunnel to facilitate the transverse connection of the middle slab. It provides a mechanized construction method for wind and road intermediate slabs. The method of mechanizing the construction of a precast wind tunnel and a middle slab for a road in a multi-story tunnel according to a preferred embodiment of the present invention comprises: (a) raising a wind tunnel slab transported from a manufacturing site to an impression position in a tunnel using a door crane. Wow; (b) loading the wind degree slab raised by the door crane onto the temporary equipment; (c) driving the temporary equipment loaded with the wind degree slab to move to an installation position; (d) raising the swing bed on the temporary equipment side loaded with the wind degree slab at the installation position to a height higher than the installation height; (e) rotating the swing bed of the temporary equipment loaded with the wind degree slab and installing it on the tunnel side wind degree slab bracket; (f) repeating the steps (a) and (e) several times to raise the intermediate slab conveyed at the manufacturing site using a door-shaped crane when all installations of the wind-proof slab are completed; (h) loading the intermediate slab onto the temporary equipment using a door crane; (i) moving the temporary slab loaded temporary equipment to an installation position; (j) raising the swing bed on the temporary equipment loaded with the intermediate slab at the temporary position to the installation height or higher; (k) rotating the swing bed of the temporary equipment loaded with the intermediate slab and installing it on the intermediate slab bracket; (l) When the installation of the intermediate slab is completed, the swing bed is lowered, and the temporary equipment is moved to the door-shaped crane to wait for the next intermediate slab to be loaded.

Description

Precast ventilating slab and middle slab construction method in mulltiple stored tunnel}

The present invention relates to a mechanized construction method of a precast wind road and a middle slab for roads in a multi-story tunnel, in particular, it is possible to safely and stably raise and rotate a wind road slab and a middle slab at different heights, thereby enabling installation at a corresponding position, The present invention relates to a method for mechanizing construction of an intermediate slab for precast wind and roads in a double-layer tunnel to facilitate the transverse connection of the intermediate slab.

Unlike the general tunnel, the double-level tunnel has an intermediate slab separating the upper and lower sections inside the tunnel. In addition, in some cases, a ventilation slab is installed above the middle slab for ventilation in a multi-level tunnel. Since the intermediate slab and the wind duct slab are installed at different locations, the height of the impression is different during construction, and the unit length is different, so an appropriate construction method is needed.

As a background technology of the present invention, Korean Patent Laid-Open No. 10-2014-0064070, proposed a construction method of a multi-layer tunnel using a permanent formwork and a multi-layer tunnel constructed using the same. This forms a tunnel lining after drilling the tunnel, supports the lower permanent formwork by supporting assembly on the tunnel lining, constructs the lower permanent formwork and the upper permanent formwork integrally on the upper part, and installs an auxiliary formwork around the permanent formwork to install concrete. It is constructed to construct a structure by integrating the frame structure by pouring, constructing a tunnel finishing surface on the upper surface of the frame structure, and repeating the above construction sequence inside another perforated tunnel to form a multi-layer tunnel.

However, the above background technology is inconvenient to install and dismantle the lower permanent formwork and the upper permanent formwork, and it is difficult to shorten the air due to the need for a curing period due to the pouring of concrete.

As another technique that is the background of the present invention, Korean Patent Registration No. 10-1465398 proposes a 'tunnel slab construction device for a tunnel and a method for constructing a wind slab using the same'. It is provided along the longitudinal direction of the tunnel to move along the longitudinal direction of the transport cable provided on the ceiling of the tunnel, a rotating portion provided to be axially rotatable below the moving portion, and is provided to be movable up and down from the rotating portion As the lifting portion of the lifting unit including a lifting unit for lifting the wind degree slab, lifting the wind degree slab upward so that the length direction of the wind degree slab corresponds to the length direction of the tunnel, and moving the lifting unit to move the wind degree slab The step of transferring the to the installation point, the longitudinal direction of the wind degree slab to rotate the rotating part of the lifting unit so as to be perpendicular to the longitudinal direction of the tunnel and the step of seating the wind degree slab on the bracket formed on the inner wall of the tunnel. Including.

However, the background technology requires installation and removal of the transfer cable at the ceiling of the tunnel, and unevenness during movement may occur due to the movement of the wind slab hanging from the transfer cable, and it is difficult to implement in a multi-layer tunnel in which an intermediate slab is installed. there is a problem.

Korean Patent Publication No. 10-2014-0064070 Korean Registered Patent Registration No. 10-1465398

The present invention makes it possible to safely and stably raise and rotate the wind degree slab and the middle slab at different heights to enable installation at the corresponding position, and precast in a multi-layer tunnel to facilitate the transverse connection of the middle slab. The object of the present invention is to provide a mechanized construction method for wind and road intermediate slabs.

The method of mechanizing the construction of a precast wind tunnel and a middle slab for a road in a multi-story tunnel according to a preferred embodiment of the present invention comprises: (a) raising a wind tunnel slab transported from a manufacturing site to an impression position in a tunnel using a door crane. Wow; (b) loading the wind degree slab raised by the door crane onto the temporary equipment; (c) driving the temporary equipment loaded with the wind degree slab to move to an installation position; (d) raising the swing bed on the temporary equipment side loaded with the wind degree slab at the installation position to a height higher than the installation height; (e) rotating the swing bed of the temporary equipment loaded with the wind degree slab and installing it on the tunnel side wind degree slab bracket; (f) repeating the steps (a) and (e) several times to raise the intermediate slab conveyed at the manufacturing site using a door-shaped crane when all installations of the wind-proof slab are completed; (h) loading the intermediate slab onto the temporary equipment using a door crane; (i) moving the temporary slab loaded temporary equipment to an installation position; (j) raising the swing bed on the temporary equipment loaded with the intermediate slab at the temporary position to the installation height or higher; (k) rotating the swing bed of the temporary equipment loaded with the intermediate slab and installing it on the intermediate slab bracket; (l) When the installation of the intermediate slab is completed, the swing bed is lowered, and the temporary equipment is moved to the door-shaped crane to wait for the next intermediate slab to be loaded.

In addition, in the step (k), characterized in that it further comprises the step of fine-tuning the installation position for the transverse connection of the intermediate slab using a fine adjustment equipment.

In addition, the door-shaped crane is arranged in a double row and a pair of lifting frames consisting of a prop supported horizontally and a prop supported horizontally connected between opposite props; A plurality of lifting frame connecting bars connecting a pair of lifting frames to each other to have a predetermined distance; A lifting cable slider installed to be movable in the width direction on the upper portion of the pair of lifting frames, and each having a pair of lifting cable support wheels for fixing; A cylinder for adjusting the lifting position of the slab, which is connected to the lifting frame side of the pair and the other end is respectively connected to the lifting cable slider to adjust the lifting position; A cable wheel carrier which is installed on the lifting cable slider so as to be reciprocated in the longitudinal direction, and is provided with a pair of lifting cable supporting wheels for each of the movable cables; A lifting cable which is fixed to the lifting cable slider and wound at the other end of the pair of lifting cable support wheels, and then connected to the slab by being supported by a pair of lifting cable support wheels; It characterized in that it comprises; one end is respectively connected to the lifting cable slider and the other end is connected to the cable wheel carrier to move the cable wheel carrier.

In addition, the temporary equipment includes a hypothetical bogie having a plurality of driving wheels at both ends; A swing link for swing bed lifting having one end hinged to the hypothetical bogie and slidably connected to each other in an X-shape with a plurality of stages; A swing bed elevating cylinder having one end connected to the hypothetical bogie side and the other end connected to a pivot shaft of a swing bed elevating sliding link for sliding the swing bed elevating sliding link up and down; A swing bed support hinged to a top end of the swing link for lifting and lowering the swing bed; A swing bed rotatably installed in the center of the swing bed support; A swing bed drive motor mounted on the swing bed support to rotate and drive the swing bed; A bed length adjusting arm supported on both ends of the swing bed and installed to be movable in the longitudinal direction, respectively; A slab support connected to an end of the bed length adjusting arm; A slab loading cylinder which is installed in the vertical direction in a pair on each of the slab supports to load the wind degree slab or the intermediate slab at an installation position; It characterized in that it comprises; one end is connected to each swing bed and the other end is connected to each of the slab supports to move the arm for adjusting the bed length to move the arm for adjusting the bed length.

In addition, the fine adjustment equipment is mounted on both sides of the upper side of the intermediate slab and two propulsion frames connected to each other; A propulsion frame position fixing cylinder respectively installed in the two propulsion frames in a vertical direction to fix the position of the propulsion frame; Supporting the upper portion of the two propulsion frame, each arm for fine adjustment installed to move back and forth in the installation direction of the intermediate slab; A fine adjustment arm cylinder having one end connected to the propulsion frame side and the other end connected to the fine adjustment arm; A pair of slab pickup cylinders supported and installed to be movable in the width direction at the front end of the fine adjustment arm; An intermediate slab position adjusting cylinder fixed to the arm for fine adjustment and adjusting a position by moving a pair of slab pickup cylinders in the width direction via a connecting plate; A propulsion cylinder that is hinged to the rear end of each of the two propulsion frames to propel the propulsion frame; One end is connected to the other end of the propulsion cylinder, and the other end is characterized by including a propulsion support supported on the lifting ring side of the pre-installed intermediate slab.

According to the mechanized construction method of the precast wind road and the intermediate slab for the road in the multi-layer tunnel of the present invention, the wind road slab and the middle slab can be safely loaded with temporary equipment using a door-type crane. In addition, through the temporary equipment, the wind and slab can be stably raised and rotated to be easily installed in the corresponding position. In addition, it has the advantage that it is possible to easily perform the transverse connection of the intermediate slab using fine adjustment equipment.

The following drawings attached in the present specification are intended to illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is only described in the accompanying drawings. It is not limited and should not be interpreted.
Figure 1a is a conceptual diagram of the construction of the wind and the intermediate slab in the multi-level tunnel according to an embodiment of the present invention.
Figure 1b is a cross-sectional view of the installation of the wind and the intermediate slab in the multi-level tunnel according to an embodiment of the present invention.
Figure 2a is a front view of a door crane applied to the present invention.
Figure 2b is a plan view of the door-shaped crane shown in Figure 2;
Figure 3a is a front view of the temporary equipment applied to the present invention is a state that the wing bed is lowered.
FIG. 3B is a state diagram in which the temporary equipment of FIG. 3A loads an intermediate slab to raise the wing bed.
Figure 3c is an enlarged view of part 'A' of Figure 3b.
3d is a view showing a state in which the wing bed loaded with the intermediate slab rotates in the temporary equipment of FIG. 3a.
FIG. 3E is a state diagram in which the temporary equipment of FIG. 3A loads an intermediate slab to raise the wing bed and then rotate the swing bed.
Figure 4a is a front view of the fine adjustment equipment applied to the present invention.
4B is a plan view of FIG. 4A.
Figure 4c is a use state diagram of the fine adjustment equipment applied to the present invention.
5a to 5d is a flow chart of the construction of the wind and the intermediate slab in a multi-level tunnel according to an embodiment of the present invention.

The present invention will be described in detail below with reference to the embodiments presented in the accompanying drawings, but the presented embodiments are illustrative for a clear understanding of the present invention and the invention is not limited thereto.

First, after the detailed description of the door-type crane 100, the temporary equipment 200 and the fine-tuning equipment 300 used for lifting, mounting and fine-tuning the wind degree slab 20 and the middle slab 21 in this method, , The construction method of the wind degree slab and the intermediate slab in a multi-layer tunnel using them will be sequentially described.

1A, 2A, and 2B, the door-type crane 100 shown in FIG. 2 raises the wind degree slab 20 and the middle slab 21, which have been transported into the multi-layer tunnel 10 by the transport vehicle 5, to a predetermined height, respectively. It is used to move the temporary equipment 200. In the present invention, the intermediate slab 21 may be referred to as an 'upper road slab' constructed on the upper layer of the lower road slab 12 as shown in FIG. 1B.

The door-type crane 100 is provided with a pair of lifting frames 110 and 110a, which are arranged in a double row and are vertically erected by a pillar 112, and a pillar brace 114 horizontally connected between the facing pillars 112. do. The pair of lifting frames 110 and 110a are installed to be interconnected via a plurality of lifting frame connecting bars 120.

At this time, the width between the posts 112 and 112 has a sufficient size so that the transport vehicle 5 can be positioned inside the door-type crane 100. In addition, the height of the post 112 is configured to be higher than when the temporary equipment 200 has a low posture for preparing the loading of the pungdo slab 20 and the intermediate slab 21.

Lifting cable sliders 130 and 130a are installed on top of the pair of lifting frames 110 and 110a. The lifting cable sliders 130 and 130a are movably installed in the width direction of the lifting frames 110 and 110a, respectively, to properly respond to the lifting position. Each of the lifting cable sliders 130 and 130a is provided with a pair of lifting cable support wheels 132 and 132a for fixing.

The lifting cable sliders 130 and 130a are movable in the width direction in the lifting frames 110 and 110a by the slabs lifting position adjusting cylinders 140 and 140a. The slab lifting position adjustment cylinders 140 and 140a have one end respectively connected to a pair of lifting frames 110 and 110a and the other end respectively connected to side surfaces of the lifting cable sliders 130 and 130a. Therefore, the position of the lifting cable sliders 130 and 130a is adjusted in the width direction by operating the slab lifting position adjusting cylinders 140 and 140a, so that the lifting position can be adjusted.

Cable wheel carriers 150 and 150a are installed on the lifting cable sliders 130 and 130a. The cable wheel carriers 150 and 150a are installed to be reciprocally movable in the longitudinal direction from the lifting cable sliders 130 and 130a, respectively. The lifting cable sliders 130 and 130a are each provided with a pair of lifting lifting cable support wheels 152 and 152a rotatable.

Lifting cables (160, 160a) are connected to the wind road slab (20) or the intermediate slab (21). The lifting cables 160 and 160a are fixed to the lifting cable sliders 130 and 130a, respectively, and the other end is wound around a pair of lifting cable support wheels 152, and then a pair of lifting cable support wheels 132 for fixing. Is supported on. Therefore, the lifting cables 160 and 160a have a structure connected in a shape ⊂ from the top. In this embodiment, the lifting cables 160 and 160a are composed of wires, but may also be composed of chains. When the lifting cables 160 and 160a are constituted by a chain, the lifting cable support wheels 132 and 132a for fixing and the lifting cable support wheels 152 for movement have a chain sprocket wheel shape.

To drive the lifting cables 160 and 160a, the lifting cable driving cylinders 170 and 170a are installed. The lifting cable driving cylinders 170 and 170a are respectively connected to the lifting cable sliders 130 and 130a, and the other end is connected to the cable wheel carriers 150 and 150a. Accordingly, when the lifting cable driving cylinders 170 and 170a are operated while the lifting hooks 161 on the lifting cables 160 and 160a are lowered as shown in Fig.?, The cable wheel carriers 150 and 150a move forward to the sides facing each other. In this way, the lifting cables 160 and 160a are pulled so that the lifting rings 161 are raised. At this time, the lifting hooks 161 on the lifting cables 160 and 160a are raised at a speed corresponding to twice the transport distance of the cable wheel transport platforms 150 and 150a. Therefore, even if the stroke amount of the driving cylinder (170,170a) is small, it has the advantage of raising the height of the lifting cable (160,160a).

The operation of the door-type crane 100 configured as described above will be described.

For example, as shown in Figure 1a, when the windshield slab 20 is located under the door-type crane 100 by the transport vehicle 5 loaded with the windshield slab 20 (or the intermediate slab 21), the lifting cable is driven By manipulating the cylinders 170 and 170a, the lifting cables 160 and 160a are lowered to connect to the wind degree slab 20 through the lifting rings 161, respectively.

Here, when it is difficult to connect the lifting hook 161 and the wind degree slab 20, the position of the lifting cable sliders 130 and 130a is adjusted by operating the slab lifting position adjusting cylinders 140 and 140a.

Then, when the lifting cable driving cylinders 170 and 170a are driven, the cable wheel carriers 150 and 150a move forward toward the opposite sides, and the lifting cables 160 and 160a are pulled to raise the lifting ring 161. At the same time, the wind degree slab 20 rises upward, and an impression is made. At this time, the height of the pull up slab 20 is such that the temporary equipment 200 can be positioned below it. At this time, as described above, the pulling speed of the lifting cables 160 and 160a is twice as fast as the stroke speed of the driving cylinders 170 and 170a, so that a rapid pulling operation can be completed.

As shown in Figures 3a to 3e, the temporary equipment 200 is raised by the door-type crane 100 to the first height of the wind slab 20 and the middle slab 21 again to a higher position and then through a rotating process. In the tunnel 10, it performs the function of being mounted on the wind degree slab bracket 11 and the middle slab bracket 11a, respectively.

The temporary equipment 200 is provided with a temporary truck 210 having a plurality of driving wheels 212 at both ends. The plurality of driving wheels 212 may be driven in forward and reverse rotation by, for example, decelerating power of an electric motor and a hydraulic motor through a reduction gear. Of course, the driving wheel 212 is preferably configured to be able to adjust the driving direction of the temporary truck 210.

The hypothetical bogie 210 is provided with a sliding link 220 for swing bed lifting. The sliding link 220 for lifting the swing bed is hinged to the temporary bogie 210, and is connected to each other in an X-shape so as to be slidable to multiple stages or more. In this embodiment, the sliding link 220 for lifting the wing bed is installed in two stages, but may be installed in more than one according to the maximum height of the impression.

Swing bed lifting sliding link 220 is to move up and down by the swing bed lifting cylinder (226). The swing bed elevating cylinder 226 has one end hinged to the temporary cart 210 side and the other end is connected to the pivot axis at the top end of the swing link 220 for swing bed elevating. Therefore, according to the operating direction of the swing bed lifting cylinder 226, the swing bed lifting sliding link 220 can adjust the height of the top end while performing the sliding operation up and down.

The swing bed support 230 is hinged to the uppermost end of the sliding link 220 for lifting the swing bed. Therefore, the swing bed support 230 is connected to the uppermost end of the sliding link 220 for swing bed lifting, the height is adjusted according to the operating direction of the swing bed lifting cylinder 226.

The swing bed 240 is rotatably installed in the center of the swing bed support 230, and the swing bed 240 is rotationally driven by a swing bed drive motor 250 mounted on the swing bed support 230. It is done. Specifically, the drive gear 252 connected to the output shaft of the swing bed driving motor 250 is inwardly engaged with the ring gear 242 installed at the center of the lower surface of the swing bed 240, and the ring gear 242 is a swing The ring gear support bearing 232 installed on the bed support 230 side is rotatably supported. Therefore, when the swing bed driving motor 250 is driven, the driving gear 252 rotates the ring gear 242 so that the swing bed 240 on which the ring gear 242 is mounted is supported by the ring gear support bearing 232. Will rotate. Therefore, the rotation direction and the rotation amount of the swing bed 240 can be controlled by the rotation control of the swing bed driving motor 250.

Swing bed 240 is provided with a pair of arm (260,260a) for adjusting the length of the bed at each end. The bed length adjusting arms 260 and 260a are slidably supported on the swing bed 240 and are movably installed in the longitudinal direction. Therefore, when the intermediate slab 21 needs to be made longer than the wind degree slab 20 as in the present embodiment, the middle slab 21 can be more stably supported by moving the arms 260 and 260a for adjusting the bed length.

Slab supports (270,270a) are connected to the ends of the arm (260,260a) for adjusting the bed length, and the slab supports (270,270a) are installed in a vertical direction in pairs, respectively, so that the wind slab (20) or the middle slab (21) Slab loading cylinder (280,280a) for loading the installation position is installed.

Preferably, the slab loading cylinders 280 and 280a may be provided with disk-shaped slab support plates 282 connected through spherical couplings, respectively. Therefore, the wind degree slab 20 or the middle slab 21 is supported through four slab support plates 282, wherein the slab support plate 282 is slightly lowered by the weight of the wind degree slab 20 or the middle slab 21. Even if it is bent, it is possible to stably support the wind degree slab 20 or the middle slab 21 by changing the posture by itself through spherical movement.

The bed length adjusting arms 260 and 260a are moved in the longitudinal direction by the bed length adjusting arms moving cylinders 290 and 290a. Bed length adjustment arms (260, 260a) are respectively connected to the swing bed 240 and the other end are respectively connected to the slab support (270,270a). Accordingly, the position of the bed length adjusting arms 260 and 260a is changed according to the operating direction of the bed length adjusting arm moving cylinders 290 and 290a, whereby the position of the slab loading cylinders 280 and 280a is changed to change the position of the slab support slab. Since the base plate 282 can be moved, it is possible to stably support the relatively long intermediate slab 21 compared to the wind degree slab 20.

The operation of the temporary equipment 200 configured as described above will be described.

The temporary equipment 200 moves the hypothetical bogie 210 and positions the inside of the above-described door-shaped crane 100, and then swings the wind-level slab 20 (or the middle slab) raised from the door-shaped crane 100 into a swing bed ( 240). At this time, the windshield slab 20 is seated in a balanced manner on the upper side slab support plate 282 of the slab loading cylinders 280 and 280a, and the length direction of the windbreak slab 20 is coincident with the lengthwise direction of the tunnel.

In this state, when the swing bed elevating cylinder 226 moves forward, the swing bed elevating sliding link 220 expands upward and the swing bed support 230 rises, and the wind degree slab 20 is raised to the installation position. do.

Thereafter, when the swing bed driving motor 250 is driven to rotate the swing bed 240 by 90 degrees, the wind degree slab 20 has a posture rotated by 90 degrees.

Then, the slab stacking cylinders 280 and 280a are operated to stably seat the wind degree slab 20 on the wind degree slab bracket 11. Of course, the intermediate slab 21 can be stably seated on the intermediate slab bracket 11a by the same method.

Thereafter, the swing bed driving motor 250 is driven in the reverse direction to rotate the swing bed 240 to its original position, and when the swing bed lifting cylinder 226 is retracted, the swing bed lifting sliding link 220 is folded downward. As it turns, the position of the swing bed 240 is lowered again to prepare for the next impression.

Meanwhile, the fine adjustment equipment 300 is used to finely adjust the position of the raised intermediate slab 21. That is, it is used to facilitate the transverse connection work (high tension bolt or transverse steel wire connection work) installed on the intermediate slab (21).

4A to 4C, the fine adjustment device 300 is provided with two propulsion frames 310 mounted on both sides of the upper side of the pre-installed intermediate slab 21. The two propulsion frames 310 have the same configuration and are interconnected through a connecting member 315. Therefore, the two propulsion frames 310 are moved under simultaneous propulsion. The propulsion frame 310 is guided when moving through a guide roller 312 that is in rolling contact with the longitudinal side end face of the intermediate slab 21.

A pair of propulsion frame position fixing cylinders 320 are respectively installed in the propulsion frame 310. The cylinder 320 for fixing the propulsion frame is installed in the vertical direction to the propulsion frame 310 and serves to fix the position of the propulsion frame 301, respectively. The cylinder 320 for fixing the propulsion frame position is provided with a hook 322 to hook the lifting ring 21a of the intermediate slab 21 to the working end. Accordingly, when the working end of the positioning cylinder 320 is hung on the lifting ring 21a of the intermediate slab 21, and the operating end of the positioning cylinder 320 is contracted, the propulsion frame is pulled by the pulling force of the hook 322. The location of the propulsion frame 310 is fixed because the 310 is in close contact with the pre-installed intermediate slab 21 side.

A fine adjustment arm 330 is installed on the propulsion frame 310. The fine adjustment arm 330 is slidably supported on the upper portion of the propulsion frame 310. Therefore, the fine adjustment arm 330 can move back and forth in the installation direction of the intermediate slab 21.

The fine adjustment arm 330 is moved back and forth by the fine adjustment arm cylinder 336. The fine adjustment arm cylinder 336 has one end connected to the propulsion frame 301 side and the other end connected to the fine adjustment arm 330.

A pair of slab pickup cylinders 340 are provided at the front end of the fine adjustment arm 330 to hold the intermediate slab 21. The slab pickup cylinder 340 is provided with a hook 342 connected to the ring 21a of the intermediate slab 21 at the operation end. The pair of slab pickup cylinders 340 are connected via an interconnecting plate 346. In addition, the pair of slab pickup cylinders 340 are installed to be movable in the width direction from the arm 330 for fine adjustment.

The intermediate slab position adjustment cylinder 350 is provided on the fine adjustment arm 330 side. The intermediate slab position adjustment cylinder 350 is fixed to the fine adjustment arm 330 side, and the working end is connected to the connection plate 346. Accordingly, the position can be adjusted by moving the pair of slab pickup cylinders 340 in the width direction via the connecting plate 346 according to the operating direction of the intermediate slab positioning cylinder 350, thereby adjusting the intermediate slab position. The cylinder 350 is connected to the hook 342 of the slab pickup cylinder 340 according to the operating direction to move the position of the raised intermediate slab 21.

The propulsion frame 310 is propelled and moved in the direction in which the intermediate slab is installed by the propulsion cylinder 360. The propulsion cylinder 360 has one end hinged to the rear end of the propulsion frame 310. A propulsion support 370 is connected to the other end of the propulsion cylinder 360. The propulsion support 370 is supported on the lifting ring side of the pre-installed intermediate slab 21. The propulsion support 370 is preferably provided with a pair of propulsion support moving wheels 380.

Therefore, after supporting the propulsion support 370 as shown in FIG. 4A to the lifting hook 21a of the pre-installed intermediate slab 21, the propulsion frame 310 can be moved by the forward operation of the propulsion cylinder 360. After the propulsion frame 310 is moved, the propulsion support 370 may be supported by the retractor ring located next to the retractor by the retracting operation of the propulsion cylinder 360 again.

The construction method of the wind tunnel slab 20 and the intermediate slab 21 in the multi-level tunnel is sequentially described using the gate crane 100 constructed and operated as described above, the temporary equipment 200 and the fine adjustment equipment 300. .

As shown in (a) of FIG. 5A, the wind tunnel slab 20, which is transported from the manufacturing site and moved to the impression position in the tunnel 10, is raised using the door-shaped crane 100. At this time, the pungdo slab 20 is mounted on the transport vehicle 5 to be located inside the door-shaped crane 100. In this process, the lifting cable 160 is lowered to connect to the wind road slab 20, and then the lifting cable driving cylinder 170 is advanced to raise the wind road slab 20.

Then, as shown in (b) of Figure 5a, the wind-level slab 20 raised by the door-shaped crane 100 is mounted on the temporary equipment 200. This is achieved by entering the interior of the temporary crane 210 of the temporary equipment 200 into the interior of the door-shaped crane 100, and retracting the lift-cable driving cylinder 170 on the side of the door-shaped crane 100 to lower the lift cable 160. . At this time, the pungdo slab 20 is mounted on the swing bed 230 on the temporary equipment 200 side. In this process, the swing bed sliding link 220 is folded to maintain a low posture.

Then, as shown in (c) of Figure 5a, the winder slab 20 is moved to the installation position by driving the temporary equipment 200 loaded. This is done by operating the temporary equipment 210 on the temporary equipment 200 to the installation position of the wind road slab 20.

Then, as shown in (d) of FIG. 5B, the swing bed 240 on the side of the temporary equipment 200 loaded with the wind degree slab 20 is raised above the installation height at the installation position. This is accomplished by advancing the swing bed elevating cylinder 226 on the side of the temporary equipment 200 and expanding the sliding link 220 for elevating the swing bed.

Next, as shown in (e) of FIG. 5B, the swing bed 240 of the temporary equipment 200 on which the wind degree slab 20 is loaded is rotated to be installed on the wind tunnel slab bracket 11 on the multi-layer tunnel 10 side. This is achieved by driving the swing bed driving motor 250 to rotate the swing bed 240 by 90 degrees, and then lowering the slab loading cylinder 280.

As described above, the wind road slab 20 repeats the above-described steps several times sequentially to complete all installations in the multi-layer tunnel 10.

Next, as shown in (f) of FIG. 5B, after loading the door-shaped crane 100 on the temporary equipment 200, the temporary slab 210 is operated to raise the door-shaped crane 100 to the middle slab 21. Move to. Subsequently, the hypothetical bogie 210 releases the door-shaped crane 100 from the position where the intermediate slab 21 is to be raised, and then exits the door-shaped crane 100.

Then, as shown in (g) of FIG. 5c, the intermediate slab 21, which has been transported by the transport vehicle at the manufacturing site, is raised using the door-shaped crane 100. In this process, the lifting cable 160 of the door-shaped crane 100 descends and connects to the intermediate slab 21, and then advances the lifting cable driving cylinder 170 to raise the intermediate slab 21.

Then, as shown in (h) of Figure 5c, the intermediate slab 21 is loaded on the temporary equipment 200 using the door-shaped crane 100. This is achieved by entering the interior of the temporary crane 210 of the temporary equipment 200 into the interior of the door-shaped crane 100, and retracting the lift-cable driving cylinder 170 on the side of the door-shaped crane 100 to lower the lift cable 160. . At this time, the intermediate slab 21 is seated on the swing bed 230 on the temporary equipment 200 side. In this process, the swing bed sliding link 220 is folded to maintain a low posture.

Next, as shown in (i) of FIG. 5C, the temporary equipment 200 loaded with the intermediate slab 21 is moved to the installation position. This is done by operating the temporary equipment 210 on the temporary equipment 200 to the installation position of the intermediate slab 20.

Next, as shown in (j) of FIG. 5D, the swing bed 240 on the hypothetical equipment 200 loaded with the intermediate slab 21 is raised above the installation height at the temporary position. This is accomplished by advancing the swing bed elevating cylinder 226 on the side of the temporary equipment 200 and expanding the sliding link 220 for elevating the swing bed.

Then, as shown in (k) of Figure 5d, the intermediate slab 21 is installed on the intermediate slab bracket 11a by rotating the swing bed 240 of the temporary equipment 200 loaded 90 degrees. This is achieved by driving the swing bed driving motor 250 to rotate the swing bed 240, and then lowering the slab loading cylinder 280.

Then, when the installation of the intermediate slab 21 is completed, as shown in FIG. 5D (l), the swing bed 240 is lowered in reverse motion and the temporary equipment 200 is moved to the door-shaped crane 100 to move to the next intermediate slab. Wait for the loading of (21).

Thereafter, each of the steps shown in FIGS. 5C (g) to 5D (l) is sequentially repeated several times to complete installation of the intermediate slab 21 in the multi-layer tunnel 10. When all the installation of the intermediate slab 21 is completed in this way, the door-shaped crane 100 is loaded onto the temporary equipment 200 and then moved.

On the other hand, for each installation of the intermediate slab 21 may further have a step of fine-adjusting the installation position of the intermediate slab 21. That is, whenever the intermediate slab 21 is installed on the intermediate slab bracket 11a by rotating the swing bed 240 of the temporary equipment 200 loaded, the intermediate slab is used by using the fine adjustment equipment 300 of FIG. 4 The installation position of (21) can be finely adjusted.

This is achieved through the manipulation of the slab pick-up cylinder 340, the intermediate slab position adjustment cylinder 350 and the fine adjustment arm cylinder 336, as described above, with the fine adjustment equipment 300 lifting the intermediate slab 21. Here, when the fine adjustment of the intermediate slab 21 is completed, the propulsion cylinder 360 is operated to propel the fine adjustment equipment 300 to prepare the fine adjustment of the intermediate slab 21 to be assembled next.

As described above, according to the mechanized construction method of the precast wind road and the intermediate slab for the road in the multi-storey tunnel of the present invention, the hypothesis equipment by stably raising the wind road slab 20 and the middle slab 21 using the door-type crane 100 ( 200). In addition, the wind tunnel slab 20 and the intermediate slab 21 can be safely raised and rotated to a high position by the temporary equipment 200 to be installed at the corresponding position. In addition, the intermediate slab 21 can easily perform a lateral connection operation (bolt or steel wire connection operation) through the fine adjustment equipment 300.

The present invention has been described in detail with reference to the presented embodiments, but those skilled in the art can make various modifications and modified inventions without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The present invention is not limited by such modified and modified inventions, but is limited by the appended claims.

20: Pungdo slab
21: Middle slab
100: door crane
200: temporary equipment
300: fine adjustment equipment

Claims (5)

(a) a step of raising the wind degree slab 20 transported from the production site to the impression position in the tunnel 10 using the door-shaped crane 100;
(b) loading the wind degree slab 20 raised by the door-type crane 100 onto the temporary equipment 200;
(c) driving the temporary equipment 200 on which the wind degree slab 20 is loaded and moving to the installation position;
(d) raising the swing bed 240 on the side of the temporary equipment 200 loaded with the wind degree slab 20 at the installation position to an installation height or higher;
(e) rotating the swing bed 240 of the temporary equipment 200 on which the wind duct slab 20 is loaded, and installing it on the wind duct slab bracket 11 on the tunnel 10 side;
(f) When all installations of the wind degree slab 20 are completed by repeating the steps (a) and (e) several times, the intermediate slab 21 conveyed at the production site is raised by using the door crane 100 A step of doing;
(h) loading the intermediate slab 21 onto the temporary equipment 200 using the door-shaped crane 100;
(i) moving the hypothetical equipment 200 on which the intermediate slab 21 is loaded to an installation position;
(j) raising the swing bed 240 on the side of the temporary equipment 200 loaded with the intermediate slab 21 in the temporary position to the installation height or higher;
(k) rotating the swing bed 240 of the temporary equipment 200 on which the intermediate slab 21 is loaded, and installing it on the intermediate slab bracket 11a;
(l) When the installation of the intermediate slab 21 is completed, the swing bed 240 is lowered and the temporary equipment 200 is moved to the door-shaped crane 100 to wait for the next intermediate slab 21 to be loaded; Repeated several times as; is included,
In the step (k), using the fine adjustment equipment 300, the precast wind strength in the multi-level tunnel characterized in that it further comprises the step of fine-adjusting the installation position for the transverse connection of the intermediate slab 21 and Method for mechanization of intermediate slabs for roads. delete According to claim 1,
The door-shaped crane 100 is
A pair of lifting frames 110 and 110a composed of a post 112 vertically placed in a double row and a post brace 114 horizontally connected between the opposite posts 112;
A plurality of lifting frame connecting bars 120 to interconnect a pair of lifting frames 110 and 110a to have a predetermined distance therebetween;
A lifting cable slider (130,130a), which is installed to be movable in the width direction on the upper part of the pair of lifting frames (110, 110a), and is provided with a pair of lifting cable support wheels (132,132a) for fixing, respectively;
One end is connected to the pair of lifting frame (110,110a) side respectively, and the other end is respectively connected to the lifting cable slider (130,130a), the slab lifting position adjustment cylinder (140,140a) for adjusting the lifting position;
A cable wheel carrier (150,150a) installed on the lifting cable sliders (130, 130a) for reciprocating movement in the longitudinal direction, and each having a pair of lifting cable supporting wheels (152, 152a) for movement;
One end is fixed to the lifting cable sliders 130 and 130a, respectively, and the other end is wound around the pair of lifting cable support wheels 152, and then supported by the pair of lifting cable support wheels 132 and connected to the slab. Lifting cables 160 and 160a;
Features include a lift cable drive cylinder (170,170a) to move the cable wheel carrier (150,150a) is connected to the cable wheel carrier (150,150a), the other end is connected to the lifting cable slider (130,130a) respectively Method for mechanization of precast wind and intermediate slabs for roads in multi-layer tunnels. According to claim 1,
The temporary equipment 200 is
A hypothetical bogie 210 having a plurality of driving wheels 212 at both ends;
One end is hinged to the hypothetical bogie 210, and the sliding link 220 for swing bed lifting and slidably connected to each other in a cross-shaped X or more;
One end is connected to the hypothetical bogie 210 side, the other end is connected to the pivot shaft of the swing bed lifting sliding link 220, the swing bed lifting cylinder 220 for sliding the swing bed lifting sliding link 220 up and down Wow;
A swing bed support 230 hinged to an uppermost end of the sliding link 220 for lifting and lowering the swing bed;
A swing bed 240 rotatably installed in the center of the swing bed support 230;
A swing bed driving motor 250 mounted on the swing bed support 230 to rotate and drive the swing bed 240;
Bed length adjustment arms (260, 260a) are respectively supported in pairs on both ends of the swing bed 240 and are movably installed in the longitudinal direction;
A slab support (270,270a) connected to ends of the bed length adjusting arms (260, 260a);
A slab loading cylinder (280,280a) which is installed in a vertical direction in a pair of each of the slab supports (270,270a) to load a wind degree slab or an intermediate slab at an installation position;
One end is respectively connected to the swing bed 240 and the other end is respectively connected to the slab support (270,270a) bed length adjustment arm for moving the bed length adjustment arm (260,260a) cylinder (290,290a) characterized by including; Method for mechanization of precast wind and intermediate slabs for roads in multi-layer tunnels. According to claim 1,
The fine adjustment equipment 300,
Two propulsion frames 310 mounted on both sides of the intermediate slab 21 and connected to each other;
A propulsion frame position fixing cylinder 320 which is respectively installed in two propulsion frames 310 in a vertical direction to fix the position of the propulsion frame 301, respectively;
A micro-adjusting arm 330 supported on the upper portion of the two propulsion frames 310 and respectively installed to move back and forth in the installation direction of the intermediate slab;
A fine adjustment arm cylinder 336 having one end connected to the propulsion frame 301 side and the other end connected to the fine adjustment arm 330;
A pair of slab pickup cylinders 340 installed to be supported in the width direction in the front end of the fine adjustment arm 330;
An intermediate slab position adjustment cylinder 350 which is fixed to the fine adjustment arm 330 and moves a pair of slab pickup cylinders 340 in the width direction via a connection plate 346;
A propulsion cylinder 360 which is hingedly connected to the rear end of each of the two propulsion frames 310 to propel the propulsion frame 310;
One end is connected to the other end of the propulsion cylinder (360), the other end is pre-installed in the multi-level tunnel characterized in that it comprises a propulsion support (370) supported on the lifting ring side of the intermediate slab (21) installed in the middle of the precast wind tunnel and roadway Mechanized construction method ..

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