JP4514179B2 - Tunnel lining concrete compaction apparatus and compaction method using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a compacting device for lining concrete constructed on the inner surface of a tunnel and a compaction method using the same, and more specifically, when compacting lining concrete placed along the inner surface of a tunnel with a vibrator, The present invention relates to a compacting device and method that eliminates defective parts such as high-quality concrete and saves the compaction work.
[0002]
[Prior art]
The inner wall surface of various tunnels formed underground by the urban tunnel method represented by the shield method and the mountain tunnel method represented by the blasting method and the free-section excavator prevents leakage and the prescribed inner surface shape. For example, lining concrete having a predetermined thickness is placed along the inner wall surface of the tunnel.
[0003]
This lining concrete is constructed by assembling the formwork at a position separated from the inner wall surface of the tunnel by the thickness of the lining concrete, and filling the narrow space between the inner wall surface of the tunnel and the formwork with the lining concrete. In order to improve the quality of the lining concrete, the concrete should be filled tightly so that there are no cavities between the formwork and the inner wall of the tunnel, and when filled, the concrete will be vibrated and tightened sufficiently. It is necessary to harden.
[0004]
Conventionally, for compacting lining concrete, as shown in FIG. 11, a rod-like vibrator 50 is inserted into the lining concrete placement space from the inspection window 51, and vibration is applied to the upper side of the placed concrete. As described above, the concrete is compacted while the vibrator 50 is manually pulled up, or a vibration generator having a self-vibrating motor is attached to the outer surface of the mold, and the vibration is transmitted to the concrete through the mold and compacted. Method is adopted.
[0005]
[Problems to be solved by the invention]
However, when the vibrator 50 is inserted and compacted from the former inspection window 51, the upper position (level position) of the placed concrete cannot be visually confirmed, and the vibrator 50 is pulled up while relying on intuition. In some cases, the concrete may not be sufficiently compacted, and the tunnel wall surface is formed in an arc shape, and the cable portion 52 of the vibrator 50 inserted from the inspection window 51 has a high rigidity. It is biased to a position that contacts the wall surface, and if the rigidity is low, it can be biased to a position that contacts the formwork or hits a reinforcing bar, etc. It is practically difficult, and vibration energy is dissipated by transferring vibration to the ground or formwork / rebar. Well there is a problem such as not being able to give the vibration.
[0006]
On the other hand, in the case of the latter method of mounting the vibration generator on the outer surface of the mold, the vibration by the vibration generator cannot be efficiently transmitted to the concrete because the mold is difficult to transmit. In particular, when the thickness of the formwork is large or the thickness of the lining concrete is large, there is a problem that this tendency becomes remarkable.
[0007]
In addition, in the compaction work of the top concrete with the inspection window installed in the tunnel lining formwork as the lower end, the use of a rod-shaped vibrator is a condition when an operator puts it in the placement site. Since it cannot be done unless it is aligned, a vibration generator is often attached to the outer surface of the mold, but the top end concrete cannot be sufficiently compacted for the reasons described above.
[0008]
Furthermore, since the topmost end of the joint portion of the top end concrete is pressed into the concrete from the concrete placement port at a distance of 0.5 to 1.0 m from the joint position, a large air pool is likely to occur, and the vibrator This is likely to result in voids coupled with the difficulty of giving vibrations.
[0009]
In addition, in many cases, the state of filling the top concrete is visually checked by removing a part of the end formwork, but it is also possible to use a detection sensor using the electrical resistance of the concrete. However, in this case, the concrete inner wall has an arc shape, and it is necessary to install sensors at a number of positions to detect that it has been filled. In general, construction management is performed in which test construction is performed and the results are reflected in the subsequent lining concrete placement.
[0010]
On the other hand, regarding the compaction of tunnel lining concrete, various proposals are disclosed in Japanese Patent Laid-Open Nos. 7-189488, 8-260896, 11-210393, 7-48994, etc. However, if it is limited to the vibrator system, all are related to the compaction of the tunnel side wall, and there is no suggestion of an efficient compaction method for the compaction method limited to the top of the tunnel. Absent.
[0011]
Therefore, the present invention Section The title is to hold the top end concrete of the tunnel lining by using a vibrator, and keep it at the center of the lining concrete placement space in the thickness direction and rely on the intuition of the workers. In addition, it is possible to place a high-quality concrete so that a high-quality concrete can be placed so that a defective portion such as a cavity is eliminated and an insufficiently compacted portion is generated, and the labor of compaction work is reduced.
[0012]
[Means for Solving the Problems]
in front Lesson In order to solve the problem, the present invention according to claim 1 assembles the formwork at a position separated from the inner wall surface of the tunnel by the thickness of the lining concrete. In addition, a wife formwork is provided at the end. A compacting device for top-end lining concrete that is constructed by filling the concrete placement space between the tunnel inner wall surface and the formwork with lining concrete,
A pull-in guide strip member disposed along the longitudinal direction of the tunnel in the concrete placement space and a guide holding member that engages with the pull-in guide strip member are integrally provided, and the pull-in guide strip member A vibrator which is held in a suspended state and is operated to be retracted along the guide member for the retracting guide, and is arranged at the top end position of the guide retaining material or the tunnel top end side position via another member, together with the vibrator It is characterized by comprising one or more concrete detection sensors that move.
[0013]
In this case, drive control of the cable reel is performed based on the detection signal from the cable reel that winds up the cable that is continuous from the rear end surface of the vibrator and passes through the end form and is taken out. It is desirable to provide a controller. And a pipe-like member that is continuous with the rear end surface of the vibrator, extends through the end form to the outside, and accommodates a cable continuous from the rear end surface of the vibrator, and pushes and pulls the pipe-like member. By operating it, the vibrator can be moved in the tunnel longitudinal direction.
[0014]
In the above invention, it is desirable that a plurality of the concrete detection sensors be disposed apart from each other in the vibrator moving direction, and a vibration insulating material for reducing vibration transmission from the vibrator to the concrete detection sensor is disposed. It is desirable. Furthermore, it is desirable to provide a controller for controlling the driving / stopping of the vibrator based on the detection signal from the concrete detection sensor.
[0015]
On the other hand Lesson The compaction method corresponding to the problem is to assemble the formwork at a position separated from the inner wall of the tunnel by the thickness of the lining concrete. In addition, a wife formwork is provided at the end. A method for compacting the top end lining concrete to be constructed by filling the concrete placement space between the tunnel inner wall surface and the formwork with lining concrete,
A pull-in guide strip member is provided along the longitudinal direction of the tunnel in the concrete placing space, and a guide holding member that engages with the pull-in guide strip member is integrally provided, and is suspended from the pull-in guide strip member. A vibrator that is held in a state and is operated to be retracted along the guide member for the retracting guide is disposed, and at the top end position of the guide retaining member or the tunnel top end side position via the separate member together with the vibrator Attach one or more moving concrete detection sensors,
When filling the concrete placement space with concrete, the concrete is compacted while pulling the vibrator along the guide guide member by a predetermined amount based on a detection signal from the concrete detection sensor. Is.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a view showing a state of installing a formwork for placing tunnel lining concrete.
[0017]
As shown in FIG. 1, in order to place lining concrete on the inner wall surface of the tunnel, the formwork 2 is installed along the circumferential direction of the tunnel at a position separated from the inner wall surface 1 by the thickness of the lining concrete. Then, lining concrete is placed in the concrete placement space 4 between the tunnel inner wall surface 1 and the formwork 2. The lining concrete is placed in order from the one side of the tunnel every predetermined section, and a end form (not shown) is provided at the end.
[0018]
In the illustrated tunnel, spray concrete 3 (primary lining) is sprayed to the wall surface of the ground after excavation at a predetermined thickness, and secondary lining is applied to the inner surface of the shot concrete 3. Concrete is cast. The inner wall surface of the tunnel here refers to the inner wall surface of the tunnel just before placing the lining concrete, and it is a sprayed concrete surface as in this example, or when the ground is good and primary lining is not performed. May be a natural surface, or a segment in the case of shield construction.
[0019]
In order to place lining concrete, the tunnel cross section is divided into the top end A and the side wall parts B and B on both sides in the circumferential direction. Then, lining concrete is cast at the top end A. Therefore, it is divided into the construction of the side wall parts B and B below and the construction of the top end part A. , Tighten The consolidation device and method will be described in detail.
[0020]
[Concrete placement of side walls B, B]
The lining concrete placement of the side walls B and B will be described in detail with reference to FIGS. 2 to 5. As shown in FIGS. 2 and 3, the boundary between the side wall B and the top end A of the mold 2. Are provided with inspection windows 2a, 2a... At an appropriate interval in the longitudinal direction of the tunnel, specifically at an interval of about 1.5 to 3 m, and a vibrator is inserted through the inspection window 2a to vibrate in the placed concrete. Is added.
[0021]
First, in this compaction method, two stages of pulling guides are provided in the concrete placement space 4 and spaced apart by a predetermined width in the horizontal direction from the corresponding position of the inspection window 2a before the mold 2 is installed. The strip members 5 and 5 are disposed along the inner wall surface of the tunnel and along the vertical direction. In this case, as the pulling guide strip member 5, for example, a highly rigid member that is not easily deformed, such as a steel rod or a reinforcing bar, can be used. The pull-up guide strip members 5 and 5 are disposed at a substantially central position in the lining concrete thickness direction.
[0022]
The vibrator device 6A held by the pulling guide strip members 5 and 5 and pulled up along the pulling guide strip members 5 and 5 has a rotary vibrator as shown in detail in FIGS. And a casing cylinder portion 11 in which a vibration motor for rotating the rotating vibrator and the like are connected in series. The casing cylinder portion 11 includes The guide holding members 12A and 12A through which the pull-up guide strip members 5 and 5 are inserted are provided integrally at two places with an interval in the longitudinal direction.
[0023]
As shown in FIG. 5, the guide holding member 12A has insertion holes 15a for the pull-up guide strip member 5 on the outer surface of the half-shaped band member 14 having mounting flanges 14a, 14a at both ends. A member provided with a guide arm piece 15 is prepared in a pair of left and right, and is externally fitted to the casing cylinder portion 11, and the mounting flanges 14 a and 14 a that are face-to-face are fastened with bolts and nuts 16 to thereby form the casing cylinder. It is attached to the part 11 integrally. A concrete detection sensor 17 for detecting the presence of concrete is attached to one end of the guide holding member 12A. The concrete detection sensor 17 applies an AC voltage between the two rod-shaped electrodes 17a and 17b protruding from the outer surface, and measures a resistance value between the electrodes 17a and 17b. Concrete is detected between the electrodes 17a and 17b. When present, the resistance value between the electrodes 17a and 17b decreases, and it is detected that the concrete is filled. In addition, you may make it provide the said concrete detection sensor 17 indirectly with respect to another member attached to the said guide holding material 12A.
[0024]
The concrete detection sensor 17 vibrates between the band member 14 and the casing tube part 11 so that the vibration of the vibration part 10 is transmitted to the concrete detection sensor 17 via the guide arm piece 15 and is not destroyed. A rubber sheet 13 as an insulating material is interposed. In addition, as a vibration insulating material, you may make it aim at the insulation of a vibration by making it the structure which interposed a rubber material in the intermediate part of the guide arm piece 15. FIG.
[0025]
On the other hand, at the rear end portion of the casing tube portion 11, a power supply cable 18 for supplying power to a motor installed in the casing tube portion 11 and a lead wire 19 from the concrete detection sensor 17 are extended, It goes out from the inspection window 2 a and is wound around the cable reel 21. The feeding cable 18 and the lead wire 19 are housed in the hose 20 so as not to be separated, and preferably are reinforced fibers such as Kepler so as not to be disconnected. Therefore It is desirable to use a material with an increased tensile strength as a covering material.
[0026]
The feeding cable 18 and the lead wire 19 (hereinafter collectively referred to as a cable) are electrically connected to a controller 22 via a cable reel 21, and the cable reel 21 is based on a detection signal from the concrete detection sensor 17. The winding motor 24 is driven and controlled, and the driving / stopping of the vibration motor is controlled.
[0027]
Hereinafter, the concrete method of compacting the side wall lining concrete will be described according to the procedure. The vibrator device 6A can be inserted into the insertion hole 15a of the guide holding member 12A so that the vibrator device 6A can be pulled up along the pulling guide strip members 5 and 5. After the pulling guide strip members 5 and 5 are installed, the cable reel 21 is fed out and the vibrator device 6A is lowered to the lowermost position. Note that a plurality of vibrator devices 6A are basically installed at appropriate intervals in the horizontal direction in the concrete placing section.
[0028]
In this state, concrete is poured into the concrete placement space 4 from a concrete pressure hose inserted from a certain inspection window 2a or a concrete placement port provided separately. The level surface of the concrete gradually rises, and the lower concrete detection sensor 17 _D If concrete is detected, power is supplied to the vibration motor of the vibrator device 6A for a predetermined time, and the concrete is compacted by vibration. Note that, if excessive vibration is applied by the vibrator, the material separation is promoted conversely, so an appropriate vibration time is set.
[0029]
Thereafter, the concrete placement is continued, and the upper concrete detection sensor 17 _U If concrete is detected, the cable reel 21 is driven in the winding direction and the vibrator device 6A is pulled upward by a predetermined amount. The pulling amount is appropriately set to such a length that the vibrating part 10 is not exposed to the air. For example, the lower concrete detecting sensor 17 located at the upper part of the vibrating part 10. _D However, the winding of the cable reel 21 may be stopped using a detection signal exposed to the air as a control signal.
[0030]
When the vibrator device 6A is pulled up by a predetermined amount, the vibration motor of the vibrator device 6A is supplied with power again for a predetermined time and the concrete is compacted by vibration. After that, the concrete detection sensor 17 is accompanied with the concrete placement. _U , 17 _D On the basis of the detection signal, the vibration of the vibrator device 6A and the vibration for a predetermined time are repeated to uniformly apply vibration to all of the placed concrete.
[0031]
In the above example, two pulling guide strip members 5 are arranged to prevent rotation around the pulling guide strip member 5 of the vibrator device 6A. However, in some cases, the pulling guide strip member 5 is used. May be one. In this case, even if the length of the guide arm piece 15 of the guide holding member 12A is made as small as possible and the vibrator device 6A swings, the position of the vibrator device 6A is extremely close to the concrete wall side position and the mold side side position. It is desirable not to be biased.
[0032]
[Concrete casting of top edge A]
Next, the lining concrete placement of the top end A will be described in detail with reference to FIGS.
[0033]
At the top end A, as shown in FIG. 1, at the stage before installation of the mold 2, there are retract guide strip members 25, 25... At appropriate intervals in the tunnel circumferential direction and along the tunnel longitudinal direction. Be placed. In this case, as the lead-in guide strip member 25, for example, a highly rigid member that does not easily deform such as a steel bar / rebar or a cord-like member such as a PC steel wire can be used. However, when a highly flexible cord-like member or the like is used, it is necessary to be in a tensioned state so that there is no slack. Further, it is desirable that the retracting guide strip member 25 is disposed such that the vibrator device 6B suspended from the retracting guide strip member 25 is positioned at the approximate center in the thickness direction of the lining concrete.
[0034]
The vibrator device 6B suspended from the pull-in guide strip member 25 and pulled in along the pull-in guide strip member 25 includes a rotary vibrator as shown in detail in FIGS. The vibration part 10 and a casing cylinder part 11 in which a vibration motor for rotating the rotary vibrator and the like are provided are connected in series, and the casing cylinder part 11 has a longitudinal direction. Guide holding members 12B and 12B, through which the pull-in guide strip members 25 and 25 are inserted, are integrally provided at two positions at intervals.
[0035]
As shown in FIG. 9, the guide holding member 12B has insertion holes 15a for the pull-in guide strip member 25 on the outer surface of the half-shaped band member 14 having mounting flanges 14a, 14a at both ends. The one side member provided with the guide arm piece 15 and the half-shaped band member 14 provided with the attachment flanges 14a, 14a at the both ends are used as the other side member, and are externally fitted to the casing cylinder portion 11 and face to face. The mounting flanges 14 a and 14 a are fastened to each other by fastening the bolts and nuts 16 to the casing cylinder portion 11.
[0036]
Concrete detection sensors 17 and 17 for detecting the presence of concrete are provided directly on the upper end portion of the guide holding member 12B or at an upper side position (not shown) via another member attached to the guide holding member 12B. It has been. The concrete detection sensor 17 applies an AC voltage between the two rod-shaped electrodes 17a and 17b protruding from the outer surface, and measures a resistance value between the electrodes 17a and 17b. Concrete is detected between the electrodes 17a and 17b. When present, the resistance value between the electrodes 17a and 17b decreases, and it is detected that the concrete is filled.
[0037]
The concrete detection sensor 17 vibrates between the band member 14 and the casing tube part 11 so that the vibration of the vibration part 10 is transmitted to the concrete detection sensor 17 via the guide arm piece 15 and is not destroyed. A rubber sheet 13 as an insulating material is interposed. In addition, as a vibration insulating material, you may make it aim at the insulation of a vibration by setting it as the structure which interposed a rubber material in the intermediate part of the guide arm piece 15. FIG.
[0038]
On the other hand, at the rear end portion of the casing tube portion 11, a power supply cable 18 for supplying power to a motor installed in the casing tube portion 11 and a lead wire 19 from the concrete detection sensor 17 are extended. It is taken out from the insertion hole formed in the mold 2 </ b> B and is wound around the cable reel 21. The feeding cable 18 and the lead wire 19 are housed in the hose 20 so as not to be separated, and preferably are reinforced fibers such as Kepler so as not to be disconnected. Therefore It is desirable to use a material with an increased tensile strength as a covering material.
[0039]
The feeding cable 18 and the lead wire 19 are electrically connected to a controller 22 via a cable reel 21, and the winding motor 24 of the cable reel 21 is driven and controlled based on a detection signal from the concrete detection sensor 17. At the same time, the drive / stop of the vibration motor is controlled.
[0040]
Hereinafter, the concrete method for compacting the top end lining concrete will be described in accordance with the procedure. The vibrator device 6B can be drawn into the insertion hole 15a of the guide holding member 12B so that the vibrator device 6B can be drawn along the drawing guide strip member 25. After installing the retracting guide strip member 25 in the inserted state, the cable reel 21 is fed out and the vibrator device 6B is positioned in the vicinity of the placed concrete 7. The pull-in guide strip member 25 can be connected to the projecting end of the pull-in guide strip member 25 buried in the existing concrete 7 by a connector 26 or by welding or the like.
[0041]
In this state, the concrete is poured into the concrete placement space 4 from the concrete placement opening 8 formed on the top end surface of the mold 2 and at a position close to the placed concrete 7. Concrete is gradually filled into the concrete placement space 4, and a concrete detection sensor 17 located relatively on the concrete placement port 8 side. _R If concrete is detected, power is supplied to the vibration motor of the vibrator device 6B for a predetermined time, and the concrete is compacted by vibration. Note that, if excessive vibration is applied by the vibrator, the material separation is promoted conversely, so an appropriate vibration time is set.
[0042]
Thereafter, the concrete placement is continued, and the concrete detection sensor 17 on the end form 2B side _L If concrete is detected, the cable reel 21 is driven in the winding direction and the vibrator device 6B is pulled in by a predetermined amount. The pull-in amount is appropriately set to a length that does not expose the vibration unit 10 to the air. For example, the concrete detection sensor 17 located on the concrete placing port 8 side. _R However, the winding of the cable reel 21 may be stopped using a detection signal exposed to the air as a control signal.
[0043]
When the vibrator device 6B is pulled in by a predetermined amount, the vibration motor of the vibrator device 6B is again fed for a predetermined time and the concrete is compacted by vibration. After that, the concrete detection sensor 17 is accompanied with the concrete placement. _R , 17 _L On the basis of the detection signal, the retraction of the vibrator device 6B and the vibration for a predetermined time are repeated so that the vibration is evenly applied to all of the placed concrete.
[0044]
When placing the concrete at the top end A, a large air pocket is likely to be generated at the uppermost position, and a gap is likely to be generated in combination with the vibration of the vibrator being difficult to apply. However, in the compacting device, the concrete detection sensors 17 and 17 are connected to the upper side of the guide holding member 12B that suspends the vibrator device 6B or another member attached to the guide holding member 12B, for example, on the upper side. Since it is attached to the position, compaction is performed while confirming whether the cast concrete is filled up to the top of the top end portion A.
[0045]
By the way, since the tunnel top end face has an arch shape, the concrete press-fitted into the concrete placement space 4 flows downward, so that the vibrator devices 6B and 6B installed at appropriate intervals in the circumferential direction of the tunnel. The position in the longitudinal direction of the tunnel during the placement of the concrete is not uniform, and as shown in FIG. 7, the vibrator device 6B disposed on both sides is pulled in earlier. In this case, when vibration is applied to the vibrator device 6B located on the ceiling, the fluidity is promoted by the vibration, and the concrete flows down downward, so that the vibrator device 6B is naturally exposed to the air. There is. Although it is sufficient that the cable 18 can be sent out and the vibrator device 6B can be pushed out, it is substantially difficult to push out because the cable 18 is flexible.
[0046]
Therefore, as shown in FIG. 10, cables 18 and 19 are connected to the rear end surface of the vibrator device 6B, extend through the end form 2B to the outside, and continue from the rear end surface of the vibrator device 6B. If a pipe-like member 27 is provided and the pipe-like member 27 can be pushed or pulled manually or by driving rollers 28, 28, when the vibrator device 6B is exposed to the air, the vibrator device 6B is sent out again. Can be buried in concrete.
[0047]
【The invention's effect】
As described in detail above, according to the present invention, The When compacting the top end concrete of the tunnel lining using a vibrator, it can be held at the center of the thickness direction in the lining concrete placement space, and without relying on the intuition of the worker, In addition, since it becomes possible to perform the drawing operation so as to eliminate defective portions such as cavities and to prevent an insufficiently compacted portion, it is possible to place high-quality concrete and to save labor in the compacting operation.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram showing a state of installing a form for placing tunnel lining concrete.
FIG. 2 is a cross-sectional view showing a compacted state of side wall covering concrete.
FIG. 3 is a front view thereof.
4A and 4B show a vibrator device 6A, where FIG. 4A is a front view, and FIG. 4B is a side view.
FIG. 5 is a view taken along the line VV in FIG. 4;
FIG. 6 is a longitudinal sectional view showing a compacted state of the top end lining concrete.
FIG. 7 is a plan view thereof.
8A and 8B show a vibrator device 6B, where FIG. 8A is a side view and FIG. 8B is a plan view.
9 is a view taken along the line IX-IX in FIG.
FIG. 10 is a longitudinal sectional view in which the vibrator device 6B is movable in the tunnel longitudinal direction.
FIG. 11 is a cross-sectional view showing a conventional compacting method using a vibrator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Tunnel inner wall surface 2 ... Formwork, 3 ... Shotcrete, 4 ... Concrete placement space, 5 ... Pull guide member, 6A, 6B ... Vibrator device, 7 ... Concrete cast, 8 ... Concrete placement Installation port, 10 ... vibrating part, 11 ... casing cylinder part, 12A and 12B ... guide holding material, 13 ... rubber sheet (vibration insulating material), 17 ... concrete detection sensor, 18 ... feed cable, 19 ... lead wire, 20 ... Hose, 21 ... cable reel, 22 ... controller, 24 ... winding motor, 25 ... retraction guide strip member, 26 ... connector, 27 ... pipe member, 28 ... drive roller

Claims (7)

Rutotomoni assembled mold to a position spaced apart by lining concrete thickness from the inner wall surface of the tunnel, Wife formwork is provided at the end, lining concrete in between concrete設空between the tunnel inner wall and the mold A compaction device for the top end lining concrete constructed by filling
A pull-in guide strip member disposed along the longitudinal direction of the tunnel in the concrete placement space and a guide holding member that engages with the pull-in guide strip member are integrally provided, and the pull-in guide strip member A vibrator which is held in a suspended state and is operated to be retracted along the guide member for the retracting guide, and is arranged at the top end position of the guide retaining material or the tunnel top end side position via another member, together with the vibrator A tunnel lining concrete compaction device comprising one or more concrete detection sensors that move. A cable reel that winds up a cable that is continuous from a rear end surface of the vibrator and that passes through the end form and is pulled out; and a controller that drives and controls the cable reel based on a detection signal from the concrete detection sensor. The tunnel lining concrete compaction device according to claim 1 . A pipe-like member that is continuous with the rear end surface of the vibrator, extends through the end form to the outside, and accommodates a cable continuous from the rear end surface of the vibrator, and pushes and pulls the pipe-like member. compaction apparatus tunnel lining concrete according to claim 1, wherein you have to be movable in the tunnel longitudinal direction the vibrator by. The said concrete detection sensor is spaced apart in the vibrator moving direction, and the plurality is arrange | positioned, The compacting apparatus of the tunnel lining concrete in any one of Claims 1-3 . The tunnel lining concrete compaction device according to any one of claims 1 to 4, further comprising a vibration insulating material for reducing vibration transmission from the vibrator to the concrete detection sensor. The tunnel lining concrete compaction device according to any one of claims 1 to 5 , further comprising a controller that controls driving / stopping of a vibrator based on a detection signal from the concrete detection sensor. Rutotomoni assembled mold to a position spaced apart by lining concrete thickness from the inner wall surface of the tunnel, Wife formwork is provided at the end, lining concrete in between concrete設空between the tunnel inner wall and the mold A method of compacting the top edge lining concrete to be constructed by filling
A pull-in guide strip member is provided along the longitudinal direction of the tunnel in the concrete placing space, and a guide holding member that engages with the pull-in guide strip member is integrally provided, and is suspended from the pull-in guide strip member. A vibrator that is held in a state and is operated to be retracted along the guide member for the retracting guide is disposed, and at the top end position of the guide retaining member or the tunnel top end side position via the separate member together with the vibrator Attach one or more moving concrete detection sensors,
When filling the concrete placement space with concrete, the concrete is compacted while pulling the vibrator along the guide guide member by a predetermined amount based on a detection signal from the concrete detection sensor. Compaction method for tunnel lining concrete.

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