JP2004137742A - Inclined pile propulsion device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently carry out propulsion of an inclined pile by propelling a pipe body with a required caliber to a level drift from the ground section, at the same time, successively extending a temporary vertical drift inside of a propelling pipe and having an access function of a worker to the inside of a drift without interfering with propelling work by corresponding to inspection repair work of the inside of the drift. <P>SOLUTION: A pipe body propulsion device 10 comprises a propulsion holder 11 for propelling the propulsion pipe 3, a reaction girder 12 provided to the back of the propulsion holder, a jack holder 14 arranging a plurality of propulsion jacks 13 thereon, a guide attached to the reaction girder to enable the jack holder to move between a propulsion position and a turnout position and a driving means thereof, it includes a guide rail 65 attached to the inside of the propulsion pipe to enable it to add, a carrier 50 suspended with a rope in the drift from the upper part of an opening of an inclined pile construction propulsion pipe along the guide rail in a liftable manner and a winch 44 of the rising and falling rope 46 of the carrier, and it has a carrier supporting structural body 40 capable of being evacuated from a propulsion pipe insertion position by pulling the carrier out from the inclined pile construction propulsion pipe opening section. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to an apparatus for constructing an inclined vertical shaft (oblique shaft) by a propulsion method, and relates to an inclined shaft propulsion construction apparatus provided with a worker's mine up-and-down moving means capable of performing inspection work in the mine to be propelled. is there.
[0002]
[Prior art]
Conventionally, when constructing a shaft that connects the inside of a tunnel built underground and the ground, a construction method that excavates from the underground tunnel side to the ground and excavates and constructs a shaft is generally adopted. . A shield machine is mainly used for excavation of such a shaft (see, for example, Patent Document 1). In addition, in order to allow workers to enter the shaft and perform work in the tunnel, those equipped with a work stage where materials and workers are sent by a mobile trolley and inspection and other work are performed on the mobile trolley. It is known (see Patent Document 2). In addition to this, Japanese Patent Application No. 2001-138763, which is a prior application of the present applicant, describes a method of moving an operator used for performing inspection and repair work in the tunnel by entering the worker in the shaft. is there.
[0003]
[Patent Document 1]
JP-A-8-189285
[Patent Document 2]
JP 2001-88691 A
[0004]
[Problems to be solved by the invention]
In the above-mentioned conventional technique, as shown in Patent Document 1, it is necessary to carry in and install a starting device (a receiving gantry) of an inclined shaft excavator in a horizontal mine, and after the excavating machine is carried in, a required device on the receiving gantry is required. It should be arranged at an angle of inclination to receive the propulsion reaction force.Therefore, it is necessary to prepare for excavation and excessive excavation around the starting position and carry-in and installation of the excavator and its receiving gantry. In addition, there is a problem that a large amount of labor is required, a large amount of work is required, and workability is not good.
[0005]
Excavation from the bottom requires excavating the inside of the excavated tunnel along with the excavation, and bringing in the lining material and lining requires a great deal of labor and cost. The construction period is prolonged, and the excavated soil is sent out into the horizontal mine during excavation.
[0006]
On the other hand, in order for an operator to enter the inclined tunnel and perform inspection and repair work, as disclosed in Patent Document 2, a winch installed on the starting side is provided at the rear end of the tunnel excavator. The mobile trolley is lifted and lowered by the wire rope wrapped around the sheave, and the worker enters the mine tunnel from the starting side on the mobile trolley to perform work, and excavated soil is discharged from the upper part to the horizontal pit side. It is very dangerous because of its existence and its degree of freedom is limited. Moreover, in order for the worker to enter the inclined tunnel, the rail must be laid according to the extension of the excavation distance in order to support the rope on the excavator side and raise the mobile trolley equipped with the operator's cabin. Many restrictions are naturally added to the work, and the longer the tunnel, the worse the workability is. Therefore, there is a problem that the operation stoppage time of the excavator is prolonged and the construction period cannot be prolonged.
[0007]
According to the present invention, a pipe having a required diameter is excavated and propelled from a ground portion toward a target horizontal pit by a propulsion method, and a hoistway temporarily provided inside a pipe connected sequentially according to the progress of the propulsion pipe is extended. In addition, by providing a worker with a function to enter and exit the tunnel, which can cope with inspection and repair work inside the pipe of the tunnel construction, without hindering the excavation promotion work, the construction work of the inclined shaft can be performed efficiently. It is an object of the present invention to provide an inclined shaft propulsion construction device.
[0008]
[Means for Solving the Problems and Functions / Effects]
In order to achieve such an object, the inclined shaft propulsion and construction device of the first invention includes:
A propulsion platform for propelling the propulsion tube, a reaction girder of the propulsion tube provided behind the propulsion frame in the propulsion direction, a jack frame on which a plurality of propulsion jacks are integrally fixed and arranged, and attached to the reaction girder. The jack gantry is configured to include a guide for movably guiding the jack gantry between a propulsion position and a retreat position along a reaction girder, and a driving means for moving the jack gantry.
[0009]
In the present invention, a jack frame having a propulsion platform and a reaction girder of a propulsion pipe and a jack for propulsion behind the propulsion platform at a starting position on the ground where the shaft is propelled and excavated is made to correspond to the inclination angle of the inclined shaft constructed by the propulsion pipe. And install it. When the propulsion pipe is brought into the predetermined position, the jack base is moved from the propulsion position to the retreat position along the guide by the driving means, and the propulsion pipe is brought into the predetermined position according to the excavation angle and separately carried into the predetermined position by a lifting machine. A new propulsion pipe is connected to the rear of the propulsion pipe, and then the jack cradle that has been retracted is returned to its original position. The reaction force during this propulsion is received by the reaction force girder attached to the propulsion gantry, and the load is held by the propulsion gantry.
[0010]
According to the present invention, since a propulsion pipe can be excavated by a propulsion excavation method from a ground part toward a horizontal pit in a destination, and a pit can be constructed, installation and carrying in of facilities and equipment can be easily performed, The effect of improving the work efficiency and shortening the construction period as compared with the excavation construction from underground can be obtained.
[0011]
Further, a propulsion tube reaction force gantry is provided below the propulsion tube receiving position in the propulsion gantry of the present invention. A pipe clamp mechanism is provided (second invention). By doing so, the propulsion force by the propulsion jack is removed by actuating the propulsion pipe clamp mechanism immediately before the retraction after the one-stroke propulsion operation by the propulsion jack and holding the middle of the propulsion pipe being propelled from both sides. , The propulsion tube can be prevented from rising (returning), and the propulsion can be made effective.
[0012]
Next, a third invention provides a propulsion platform for propelling a propulsion tube, a reaction girder of the propulsion tube provided behind the propulsion direction of the propulsion frame, and a jack frame on which a plurality of propulsion jacks are integrally fixed and arranged. A tubular body propulsion unit which is attached to the reaction girder and includes a guide for movably guiding the jack base between a propulsion position and a retreat position along the reaction girder, and driving means for moving the jack base. A guide rail attached to the device and attached to the propulsion pipe and capable of being extended, and a carrier guided by the guide rail and suspended from the upper opening of the inclined shaft construction propulsion pipe so as to be able to ascend and descend by a rope into the pit, A carrier support structure capable of pulling up the carriage upward from the opening of the inclined shaft construction propulsion pipe and retracting from the insertion position of the propulsion pipe, and a rope driver for lifting and lowering the carriage provided in the carriage support structure It is characterized in that it has a.
[0013]
In the present invention, when a propulsion pipe on which a guide rail is previously mounted on the inner surface is propelled by a propulsion jack and successively added to construct a sloping tunnel, inspection work or the like in the pit is performed. Is moved forward and the carrier is guided by guide rails arranged in the mine (in the propulsion pipe) by the operation of the rope driving means for raising and lowering, and enters the sloping tunnel. An operator who moves on the mine by riding on a carrier can lean inside from the carrier to perform internal work along the surface. In addition, the worker who gets on the transporter can stay within the cage of the transporter while moving from the pit to a required point in the inclined shaft, so that safety can be ensured. Then, after moving to the place where the work is performed, the target work can be performed on a stage (work floor) that can be operated outside the cage.
[0014]
ADVANTAGE OF THE INVENTION According to this invention, it is guided by the guide rail attached to the propulsion pipe which constructs a sloping shaft, and is hung from the said carrier support structure, when it enters into a sloping shaft and moves (descends) to the work target location. Since the carrying device can be moved up and down by the rope, there is an advantage that it can be quickly moved to a target position and safety can be ensured. In addition, when performing the addition operation of the propulsion pipe for the construction of the shaft, when the carrier is pulled out of the mine and the carrier support structure is moved backward, it can be evacuated from the extension work position to the outside of the system, so when the next use Can be stopped until it can easily cope with the construction work of the shaft.
[0015]
In the third invention, the transporter is provided with a work floor at an upper part of the cage, a work scaffold at a lower part of the cage, and an entrance movable from the inside of the cage to the work scaffold and the work floor. The configuration is preferably (fourth invention). In this way, when moving to the target work position in the inclined shaft, the worker can move from inside the cage to the upper work floor or the lower work scaffold, and perform work along the inner wall of the shaft. .
[0016]
Preferably, a support member is attached to the lower side of the cage of the transporter, and a lifting device is attached to the support member so that the lifted material can be transported together with the transporter (fifth invention). In this way, when the work in the inclined shaft is completed and the guide rails for elevating are removed, the objects such as the guide rails are lifted by the hoist, and the erection objects in the tunnel are sequentially turned down from below without using a separate hoist. Can be taken out.
[0017]
Further, in the third invention, the carrier support structure is supported on a gantry so as to be movable in the front-rear direction crossing the shaft of the shaft, and a guide rail of the carrier is attached to the front surface, and a hoist is mounted. The carrier can be driven up and down by a hoisting rope, and when moving the carrier up and down in the inclined shaft, the guide rail is connected to the one laid in the inclined shaft so that the carrier can enter and exit, and together with the carrier during the propulsion work of the propulsion pipe. The present invention is characterized in that it is configured to be moved to a retracted position by a driving means (sixth invention).
[0018]
By doing so, during the propulsion work of the propulsion pipe for constructing the shaft, the carrier support structure is retracted to the evacuation position together with the carriage, so that there is no hindrance to performing the propulsion work, and the worker enters the mine. When performing the work, advance the carrier support structure and slide the guide rail provided on the front surface, and move the carrier into the mine so as to match the guide rail laid in the mine, or from the mine Can be raised. Therefore, it does not interfere with the propulsion connection work of the propulsion pipe for the construction of the shaft, because it operates separately from the shaft driving system for building the shaft, and the guide rail is connected only during the operation of the shaft and the carrier enters the shaft. In addition to being able to move forward and backward, the carrier support structure is provided between the upper part of the shaft and the evacuation position so that the carrier can be retracted while holding the carrier at the front except when working inside the shaft. Priority and safety of underground work can be expected. In addition, since the operation of the work carrier to and from the inclined shaft can be performed without using other equipment, there is an advantage that the work process can be efficiently operated.
[0019]
Further, the guide rail of the transporter provided in the inclined shaft is formed by joining two rail members with a plurality of horizontal members so as to be parallel at a required interval, and an inwardly inclined surface is formed symmetrically at one end. At the other end, an outwardly inclined surface is formed symmetrically with respect to the inwardly inclined surface so as to match the inwardly inclined surface, and the rail can be connected by matching the inwardly inclined surface with the outwardly inclined surface. (7th invention). By doing in this way, the guide rail is fixed to the propulsion pipe for construction with the direction of the guide rail fixed in advance, and the inwardly inclined surface at the end of the guide rail and the outwardly inclined surface at the other guide rail are connected at the time of pipe connection. If the propulsion pipes are connected so as to match each other, there is an effect that the guide rails can be easily laid.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of an inclined shaft propulsion construction apparatus according to the present invention will be described with reference to the drawings.
[0021]
FIG. 1 is an overall view of an embodiment of a shaft driving system according to the present invention. FIG. 2 is a side view of the pipe body propulsion device in the inclined shaft construction section, FIG. 3 is a view taken along the line AA of FIG. 2 (a) and a plan view taken along the line BB of FIG. FIG. 5 is a view showing a main part of the body propulsion device, FIG. 5 is a view taken along the line CC of FIG. 4, FIG. 6 is a front view of the carrier support structure, FIG. 8 is a front view in which a part of an embodiment of a guide rail attached to a propulsion pipe is omitted, and FIG. 9 is a cross-sectional view taken along the line DD in FIG. , Respectively.
[0022]
The inclined shaft propulsion and construction apparatus 1 according to the present embodiment is used to construct an inclined shaft 2 that connects a tunnel (not shown) excavated and constructed underground to the ground. The inclined shaft 2 is constructed from a ground portion to a target position by a small-diameter propulsion excavation method, and a propulsion pipe 3 having a required diameter is used for the propulsion excavation.
[0023]
The inclined shaft propulsion and construction device 1 includes a tube propulsion device 10 for excavating and promoting a propulsion pipe 3 serving as a shell of the inclined shaft 2 to be constructed, and a carrying device 50 provided in parallel with the tube propulsion device when work in the inclined shaft 2 is required. Is carried into the shaft 2 from the opening of the propulsion position of the propulsion pipe 3, and a carrier 50 and a carrier support structure 40 for the carrier 50 are provided.
[0024]
The pipe body propulsion device 10 has a propulsion base 11 for propelling the propulsion pipe 3, a reaction girder 12 of the propulsion pipe 3 provided behind the propulsion pipe 11 in the propulsion direction, and a plurality of propulsion jacks 13. And a guide attached to the reaction girder 12 for guiding the jack girder 14 between the propulsion position and the retreat position along the reaction girder 12 and moving the jack girder 14. It is provided with driving means (to be described later) and propulsion pipe holding means 20 for receiving the propulsion pipe 3 at a predetermined position and performing a propulsion operation.
[0025]
The propulsion gantry 11 inclines the support axis (propulsion axis C) in accordance with the propulsion inclination angle α of the propulsion pipe 3 for constructing the shaft in the inclined shaft construction start position on the ground part, and moves the propulsion pipe 3 inward. The columns 11a and 11b are arranged on both sides in the width direction so as to form a space in which the columns 11a and 11b are widened in the width direction and have a required height before and after both sides thereof so as to form an acceptable space. The frame structure is connected by connecting members 11c and 11d. The reaction girder 12 of the propulsion pipe 3 is attached to the top of the propulsion gantry 11 so as to be orthogonal to the propulsion axis C. The propulsion gantry 11 is held by anchoring the anchor 15 from the base girder 11f to the ground so as to prevent the propulsion pedestal 11 from floating due to the reaction force when the propulsion pipe 3 is propelled against the installation ground.
[0026]
On the lower surface of the reaction force girder 12, two guide rails 16 (members having an I-shaped cross section) are arranged in parallel at a required interval across the propulsion axis C and inclined forward (in FIG. The jack base 14 is provided so as to protrude and extend (upper left side) and is guided by the guide rail 16 so as to be movable between a propulsion position and a retracted position. A plurality of (four in this embodiment) propulsion jacks 13 are arranged on the lower surface of the jack base 14 in parallel with the propulsion axis C, and the rod ends thereof are in contact with the pipe ends of the propulsion pipe 3. A thrust ring 13 'for transmitting thrust is mounted. As a driving means for moving the jack base 14 between the propulsion position and the retreat position, a hydraulic cylinder 17 supported by a bracket on a horizontal member 16a interconnecting the front ends of the guide rails 16, 16 is used. The end of the rod 17a of the hydraulic cylinder 17 is connected to the front end of the jack base 14 to move forward and backward. The jack base 14 has a plurality of guide rollers 14a, 14a provided on the right and left sides of the guide rails 16, 16 on the left and right sides of the guide rails 16. ing.
[0027]
Further, inside the propulsion gantry 11, two receiving members 18, 18 which are supported by edges so that when the propulsion pipe 3 is received on the rear side, the pipe body coincides with the propulsion axis C, are provided. It is arranged vertically at intervals. A propulsion tube holding means 20 is provided on the front side so as to be able to receive three points with respect to the two receiving members 18. The propulsion pipe holding means 20 is attached to a fixed longitudinal member 21 fixedly supported by the horizontal members 11c and 11d of the propulsion gantry 11 with the movable ends of the parallel links 22 and 22 whose base ends are pivotally supported by pins 23. The holding member 24 is connected to the bracket 24a by a pin 24b, and is movably supported in the front-rear direction. The presser vertical member 24 can be further moved back and forth by the operation cylinders 25, 25 to press the propulsion pipe 3 added to the existing pipe end. The operation cylinders 25, 25 have brackets 21 a, 21 a having both ends provided below the pins 23, 23 on the back side of the fixed longitudinal member 21, and the parallel links 22, 22. Each is connected to the movable end side.
[0028]
Separately from the tubular body propulsion device 10 configured as described above, the intermediate portion of the propulsion tube 3 is gripped below the installation position, and the propulsion jack 13 performs a predetermined stroke propulsion. A propulsion pipe clamp mechanism 30 for preventing the pipe from rising is disposed below the installation position of the pipe body propulsion device 10 with its axis aligned with the propulsion axis C. The propulsion pipe clamp mechanism 30 is reduced / expanded inside the gantry so as to hold the gantry 31 having a space through which the propulsion pipe 3 can pass through the center and the side surface of the propulsion pipe 3 passing through the center of the gantry 31. And a plurality of hydraulic cylinders 33 (operating cylinders 33) for operating the clamp holding portion 32. The clamp holding portion 32 includes a plurality of pieces (for example, divided into four pieces) each having an arc-shaped inner surface. It is composed of In addition, the propulsion pipe clamp mechanism 30 is configured to fix the gantry 31 to the ground by anchor bolts at the bases of the support legs 31a located at four corners thereof, so that the gantry 31 can be fixed to be lifted. In the figure, reference numeral 34 denotes a handrail of an inspection landing formed on the upper surface of the gantry 31. Further, what is indicated by reference numeral F is a steel sheet pile.
[0029]
In addition, a carrier lifting device 42 that supports and lifts a carrier 50 that allows an operator to enter and work in the inclined shaft 2 constructed by excavation and propulsion is provided above the pipe body propulsion device 10. A carrier support structure 40 is provided.
[0030]
The carrier support structure 40 includes a support frame 41 having a frame structure at a required height in which the front surface 41a is inclined so as to be parallel to the inclined propulsion axis C of the propulsion pipe (the shaft 2), and the support frame 41. And a support for supporting the support frame 41 so as to be able to advance and retreat from a position at which the transporter 50 enters through the opening of the propulsion tube 3 by the tubular body propulsion device 10 to a position at which it is retracted during the pipe propulsion operation. It is composed of a gantry 60.
[0031]
The carrier lifting device 42 includes a guide rail 43 slidably attached to the front surface 41 a of the support frame 41 in a vertical direction, and a wire rope 46 wrapped around guide sheaves 45 provided on the top of the support frame 41. And a hoisting machine 44 for raising and lowering the transporter 50 suspended at 46.
[0032]
The guide rail 43 includes a pair of rail members 43a made of channel steel at a required interval and arranged in parallel such that the groove portions thereof face outward. And are integrally formed by being connected to each other. The guide rail 43 is supported by a support member on the front surface of the support frame 41 so as to be slidable in the vertical direction. The guide rail 43 is disposed on the top of the support frame 41 from a winch 47 installed at a lower front position inside the framework of the support frame 41. It is lifted and supported by a wire rope 47a around the guide sheaves 48, 48 provided, and is kept in a raised state except during the lifting / lowering operation of the carrier 50.
[0033]
The carrying device 50 includes a cage 52 for carrying an operator having at least a pair of upper and lower guide rollers provided on both sides in the width direction of a guide roller guided by rail members 43a of the guide rail 43, and a lifting frame for mounting a work scaffold 53. 51, and a work floor 54 attached to the upper part of the cage 52.
[0034]
Further, the transporter 50 is wrapped around guide sheaves 45, 45 installed on the top of the support frame 41 via a well-known safety mechanism (not shown) provided on the upper top of the lift frame 51, and the hoist 44 Is suspended by a wire rope 46 (corresponding to the rope of the present invention) operated by the. A work floor 54 is provided at the upper part of the cage 52 so as to be able to ascend and descend from the inside thereof, and normal underground work can be performed on the work floor 54.
[0035]
A support beam 55 (corresponding to a support member of the present invention) is provided below the floor of the cage 52 so as to slightly protrude forward from the elevating frame 51 from the cage 52, and a small lifting beam is provided below the distal end of the support beam 55. A heavy machine 56 (for example, a small electric hoist, hereinafter referred to as an electric hoist 56) is suspended. The work scaffold 53 provided on the lower side can be used mainly when the electric hoist 56 is used to remove guide rails (described later) provided at the end of the inclined shaft construction work and members required for underground work. For example, the guide rail is formed in a space that can be used for collecting the removed guide rail in the work scaffold 53 and carrying it out to the ground.
[0036]
In addition, the support frame 41 is propelled from a position on the support stand 60 erected above the ground so as to allow the transporter 50 to enter the inside from the opening of the inclined shaft 2 (propulsion pipe) to be propelled and constructed. It is supported on a guide rail 61 so as to be able to move back and forth to a position where it can be retracted rearward during the propulsion operation of the pipe 3. Therefore, the upper surface of the support gantry 60 is provided at a position where it does not contact the upper surface of the reaction girder 12 on the propulsion gantry 11, and the front end of the guide rail 61 projects above the reaction girder 12 (FIG. 1). reference).
[0037]
In this manner, the support frame 41 is disposed on the upper surface of the support frame 60, and the base end is attached to the support frame 60, and the rod end is connected to an appropriate position below the support frame 41 by the reciprocating operation cylinder 63. A plurality of wheels 41c are provided at a lower portion of the support frame 41 to be supported by a guide rail 61 provided with a support gantry 60 and supported movably. A cable reel 64 for winding a cable for feeding and controlling power to the transporter 50 is mounted on the upper portion of the front surface of the support frame 41. In addition, when the transporter 50 is lifted, an operator gets on and off the cage 52 of the transporter. A landing (not shown) is provided on the side surface.
[0038]
On the other hand, the propulsion pipe 3 for constructing the shaft 2 by excavation and propulsion is constituted by a metal pipe having a required diameter, and is connected by sequential fitting and connected by a large number of bolts on the outer periphery of the connection part. ing. On the inner surface of the propulsion tube 3, a guide rail 65 for guiding at the time of entry of the carrier 50 is detachably provided along the axis of the propulsion tube 3. Although not shown, rollers for guiding cables and the like are arranged at appropriate intervals at side positions of the guide rail 65, and these are also detachably provided.
[0039]
As shown in FIG. 8, the guide rails 65 provided in the propulsion pipe are formed of a plurality of horizontal members 65b by using the same guide members 65a and 65a as the guide rails 43 provided on the front surface of the support frame 41. And has a length corresponding to the total connection length of the propulsion pipe 3 and a length dimension that can be accommodated in the work scaffold 53 attached to the above-described transporter 50 at the time of removal. 65B and 65C, and are connected by bolts 68 at the ends. In addition, one end of the guide rail 65, for example, one end of the split rail 65A is symmetrically provided with an inclined surface 66 which is inclined downward from both sides toward the center line, and the other end of the split rail 65C is provided with an inclined surface 66 at one end of the split rail 65A. Is formed on the inclined surface 67 having a steep slope. Therefore, when the propulsion pipe 3 is connected, the end of the downwardly inclined surface 66 and the end of the abruptly inclined surface 67 are aligned so that the position of the guide member 65a can be matched to perform the butt connection. As shown in FIG. 9, a plurality of seat plates 69 fastened and fixed to the mounting seat 3 </ b> A provided on the inner wall of the propulsion pipe 3 by bolts 70 are provided at a plurality of locations on the lower surface.
[0040]
The inclined shaft propulsion construction device 10 configured as described above first performs a preparation operation for mounting the propulsion pipe 3 serving as the shell of the inclined shaft 2 to be excavated and propelled to the propulsion unit following the leading excavator (not shown). At this time, as shown by a two-dot chain line in FIG. 1 or FIG. 4, the jack cradle 14 located on the lower surface of the reaction girder 12 above the propulsion cradle 11 is actuated by the hydraulic cylinder 17 which is a movement driving means thereof. The propulsion position P is moved to the retreat position Q in front of the propulsion position P, and the upper part of the internal space of the propulsion gantry 11 is opened so that the propulsion tube 3 can be easily received. At this time, the propulsion pipe clamp mechanism 30 that grips the intermediate portion of the propulsion pipe 3 is retracted from the chucking position by the holding piece 32 and loosened, so that the propulsion pipe 3 can be easily inserted. In addition, the transporter support structure 40 is moved to the retreat position and kept in a standby state so as not to hinder the operation of hanging the propulsion pipe 3 (see FIG. 1).
[0041]
The propulsion pipe 3 is suspended at a propulsion position P by a separate lifting machine (not shown) and connected to the rear end of the advanced pipe. At this time, when the propulsion tube 3 is suspended at the receiving position, the propulsion tube 3 is supported by leaning against the receiving members 18 in the propulsion gantry 11. By doing so, it is possible to match the axis of the leading pipe with a predetermined inclination. At this time, if the axis of the suspended propulsion pipe 3 does not match the propulsion axis C, as shown in FIG. 4, the operating cylinder 25 of the propulsion pipe holding means 20 is operated to operate the parallel link. The push-down longitudinal member 24 is pushed out by the cooperating operation with 22, 22 to move the propulsion pipe 3 toward the receiving members 18, 18 so that the axis is aligned with the previous propulsion pipe. When the propulsion pipe 3 is hung at the propulsion position P, the mounting direction of the guide rail 65 previously mounted on the ground portion is set so as to match the mounting position of the guide rail 65 on the propulsion pipe 3. Be matched.
[0042]
When the suspended propulsion pipe 3 is bolted to the tip of the existing propulsion pipe, the hydraulic cylinder 17 is moved forward to return the jack base 14 to the propulsion position P. Thereafter, when the rods of the plurality of propulsion jacks 13 are simultaneously advanced, the propulsion ring 13 ′ attached to the rods is pressed against the upper end of the propulsion pipe 3. Therefore, when the propulsion jack 13 is moved forward, the propulsion pipe 3 is gradually pushed into the ground by the thrust and is propelled in combination with the excavation by the excavator attached to the end of the leading pipe. The excavated soil is discharged from the inside of the inclined shaft 2 being constructed by the discharging means attached to the excavator to the above-ground portion by a drain pipe (not shown) (the drain pipe is previously propelled similarly to the guide rail 65). It is installed inside the tube, and the tube is connected when connecting.)
[0043]
Eventually, when the propulsion jack 13 reaches the maximum stroke, the operation cylinder 33 of the propulsion pipe clamp mechanism 30 is operated to contract the holding portion piece 32 in the pipe axis direction and chuck the intermediate portion of the propulsion pipe 3. By doing so, the propulsion tube 3 is held in the pushed state. Therefore, the propulsion jack 13 is simultaneously retracted, and the hydraulic cylinder 17 is operated in the retreating direction to retract the jack base 14 to the retreat position Q. In this manner, a spacer pipe (not shown) is suspended above the propulsion pipe 3 during propulsion in which a space for one stroke of the propulsion jack 13 is formed and temporarily connected, and the jack base 14 is again moved to the propulsion position P by the hydraulic cylinder 17. I will put it back.
[0044]
When the jack base 14 is returned to the propulsion position P, the propulsion jack 13 is operated again to press the propulsion ring 13 'against the end of the spacer tube to urge the propulsion force. When the propulsion jack 13 is propelled to a required position via the spacer tube by the propulsion jack 13, the operation shifts to the operation of adding a new propulsion tube 3 to the next. In this connection operation of the new propulsion pipe 3, first, the operating cylinder 33 of the propulsion pipe clamp mechanism 30 is operated to chuck the outer peripheral portion of the pushed propulsion pipe 3 by the holding piece 32, thereby removing the propulsion force. Prevents the propulsion tube from lifting when it is placed. Subsequently, the rod of the propulsion jack 13 is retracted to raise the propulsion ring 13 ', and the jack base 14 is retracted to the retreat position Q in the manner described above. After removing the spacer pipe and opening the upper position of the previous propulsion pipe, as shown in FIG. 10, a new propulsion pipe 3 is suspended to perform a connection operation, and the jack stand 14 is returned again before propulsion. The chucking by the tube clamp mechanism 30 is released, and the propulsion jack 13 is moved forward to urge the propulsion force to perform the propulsion work. In performing the connection work, the excavator attached to the leading conduit is temporarily stopped, and is driven and excavated at the time of transition to the propulsion operation. Thereafter, this operation is repeated to perform the construction work of the shaft 2.
[0045]
On the other hand, when the construction work of the shaft 2 is progressing and the work in the shaft is required, the operation of adding the next propulsion pipe 3 is interrupted, the operation by the above-described propulsion jack 13 is temporarily stopped, and the jack base is stopped. 14 is retracted to the retracted position Q. Of course, at this time, the propulsion pipe 3 is fixed by a chucking operation by the propulsion pipe clamp mechanism 30. After that, the transporter is sent into the shaft 2.
[0046]
In order to feed the transporter 50 into the shaft 2, as shown in FIG. 10, first, the support frame 41 of the transporter support structure 40 at the standby position at the standby position is held on the front surface 41 a by the advance / retreat operation cylinder 63. The guide rail 43 for guiding the transported carrier 50 is moved forward so as to be located above the wellhead of the inclined shaft 2 (upper end of the propulsion pipe 3 being operated for propulsion). At this time, the position of the guide rail 43 of the transporter is adjusted so that the lower end thereof coincides with the upper end of the guide rail 65 in the inclined shaft 2.
[0047]
Since the guide rail 43 supported by the support frame 41 is pulled up by a wire rope 47a operated by the winch 47, the winch 47 is operated to move the guide rail 43 inside the propulsion pipe 3. Is slid down until it comes into contact with the end of the guide rail 65 attached to the. The position of the guide rail 65 on the propulsion tube and the guide rail 43 on the support frame 41 are set in advance so that their axes match so that they can be connected.
[0048]
When the guide rails 43 on the support frame side and the guide rails 65 on the propulsion tube side are connected in this manner, when the operator gets on the carrier 50 and operates the hoisting machine 44 to the rope feeding side, a wire rope (rope) 46 is provided. , 46 are fed out and can descend into the shaft 2 along the guide rail 65. Therefore, when the worker descends to the target position, the operation of the hoisting machine 44 is stopped, and thereafter, the worker climbs from inside the cage 52 of the carrier 50 onto the work floor 54 provided on the ceiling and travels along the inner wall in the shaft 2. Just do it. When the carrier 50 descends into the shaft and performs work, the operation of the hoisting machine 44 in the above-ground section is operated by operation control means provided in the cage 52 on which the worker is riding. For this purpose, a power supply and a control cable are fed and wound by a cable (not shown) wound on a cable reel 64 mounted on the support frame 41 in accordance with the elevation of the transporter 50, and are wound on the ground side. The driving operation can be performed via the control device.
[0049]
The transporter 50 has a structure that is inclined in accordance with the inclination angle of the propulsion axis C of the shaft, but when working in the premises, the work floor 54 provided on the ceiling from the cage 52 as described above. , And it is possible to work over the front peripheral surface of the inner wall of the shaft due to the open state. Further, at the time of lifting and lowering, safety can be ensured by the worker being accommodated in the cage 52 and moving. Of course, in a case of an emergency, a known safety device is provided at a place where the transporter 50 is suspended, so that the device is protected by the operation of the safety device.
[0050]
When the operation in the mine is completed, the worker returns to the cage 52, rises to the wellhead without hindrance to lifting and lowering, and raises the transporter 50 to above the support frame side guide rail 43 of the transporter support structure 40. Then, the guide rail 43 is pulled up to a predetermined position by operating the winch 47. By doing so, the guide rail 43 on the support frame 41 side is separated from the guide rail 65 on the inclined shaft 2 side, so that the transporter support structure 40 can be moved and retracted to the standby position so as not to hinder the propulsion work. it can. Accordingly, the support frame 41 is returned to the retracted position by moving the advance / retreat operation cylinder 63 backward, so that the next extension operation (propulsion operation) of the propulsion pipe 3 can be started.
[0051]
Since the transporter 50 can be moved up and down by driving the hoist 44 along the guide rail 65 laid in the shaft 2 as described above, for example, an obstacle may occur in the excavator at the tip of the shaft excavation portion, or inspection may be performed. When it is necessary to perform the inspection and repair of the excavator, the operator can be lowered to the face position, lean out of the work scaffold 53 attached to the lower part of the cage 52, or go out and directly. In this case, since it is located at the bottom of the shaft 2, the work can be performed without using any additional equipment.
[0052]
When the excavation and construction of the shaft 2 is completed, as shown in FIG. 11, the transporter 50 is lowered into the shaft 2 as described above, and the worker descends into the work scaffold 53 below the cage 52, and the shaft 2 ( The fastening bolts of the mounting portion are sequentially loosened upward from the lowermost end of the guide rail 65 attached to the propulsion pipe, and the segments (65A, 65B, 65C) of the guide rail 65 are set to a predetermined length at the connection portion. ) Is disassembled, the segment of the disassembled guide rail 65 is taken into the work scaffold 53 by the electric hoist 56 suspended from the support beam 55 provided below the cage 52, and the transporter 50 is operated to carry it up to the ground. The work scaffold 53 has a space suitable for disassembling the guide rails 65 on which an operator stands, and a guard is attached to a peripheral surface other than the work surface so as to maintain safety. Have been. When the guide rail 65 is disassembled and removed, disassembly and removal of other components attached to the inner wall of the mine can be performed.
[0053]
As described above, the inclined shaft propulsion construction device 1 of the present embodiment is constructed by attaching the carrier support structure 40 to the propulsion pipe propulsion device 10 and performing the propulsion construction of the inclined shaft 2 from the ground portion by the small-diameter excavation propulsion method. Sometimes, guide rails 65 are sequentially laid along with the shell (propulsion pipe 3) of the shaft, and the transporter 50 can be moved up and down from the ground side into the shaft along the guide rails 65. Since the carrier 50 can be sent into the shaft 2 and the work inside the shaft can be performed safely, the work of building the shaft can be facilitated and the shaft can be constructed in a short period of time. In addition, since the guide rail 65 can be disassembled and loaded into the carriage 50 after the construction of the inclined shaft 2 and dismantled and removed without using other equipment, the cost required for incidental work can be reduced.
[Brief description of the drawings]
FIG. 1 is an overall view of an embodiment of an inclined shaft propulsion and construction apparatus to which the present invention is applied.
FIG. 2 is a side view of the pipe body propulsion device in the inclined shaft construction section.
FIG. 3 is a plan view (a) as viewed from AA in FIG. 2 and a plan view as viewed in BB in FIG. 2;
FIG. 4 is a diagram illustrating a main part of the tubular body propulsion device.
FIG. 5 is a CC view of FIG. 4;
FIG. 6 is a front view of the transporter support structure.
FIG. 7 is a left side view of FIG. 6;
FIG. 8 is a front view in which a part of an embodiment of a guide rail attached to a propulsion pipe is omitted.
FIG. 9 is a sectional view taken along line DD in FIG. 8 and also shows an attachment portion to a propulsion pipe.
FIG. 10 is a diagram illustrating a state in which a propulsion pipe is received and a carrier is allowed to enter a shaft.
FIG. 11 is a diagram illustrating a state in which a removal operation of a guide rail or the like is performed in an inclined shaft.
[Explanation of symbols]
1 inclined shaft propulsion construction equipment
2 Shaft
3 Propulsion pipe
10 Pipe body propulsion device
11 Promotion stand
12 Reaction girder
13 Promotion jack
13 'propulsion ring
14 Jack stand
16 Guide rail for jack stand
17 Hydraulic cylinder to move jack stand
18 Propulsion tube receiving member
20 Propulsion tube holding means
24 Vertical member for presser foot
25, 33 Operation cylinder
30 Propulsion tube clamp mechanism
31 gantry
32 Clamp holding part
40 Carrier support structure
41 Support frame
43 Guide rail
44 hoisting machine
46 Wire rope (rope)
47 winches
47a Wire rope for guide rail slide
50 transporter
52 cage
53 Work Scaffold
54 work floor
55 support beams
56 Electric Hoist
60 Support frame of support frame
61 Guide rail
63 Reciprocating operation cylinder
65 Guide rail attached to propulsion pipe
66 Downward slope of guide rail end
67 Guide rail end slope
C Propulsion axis

Claims (7)

A propulsion platform for propelling the propulsion tube, a reaction girder of the propulsion tube provided behind the propulsion frame in the propulsion direction, a jack frame on which a plurality of propulsion jacks are integrally fixed and arranged, and attached to the reaction girder. An inclined shaft propulsion construction device comprising a guide for movably guiding the jack cradle between a propulsion position and a retreat position along a reaction girder, and driving means for moving the jack cradle. A propulsion tube reaction force gantry is provided below the propulsion tube receiving position of the propulsion gantry, and a propulsion tube clamp mechanism is provided for gripping an intermediate position of the propulsion tube propelled by the propulsion tube reaction force gantry to prevent floating. The inclined shaft propulsion construction device according to claim 1, wherein the device is provided. A propulsion platform for propelling the propulsion tube, a reaction girder of the propulsion tube provided behind the propulsion frame in the propulsion direction, a jack frame on which a plurality of propulsion jacks are integrally fixed and arranged, and attached to the reaction girder. The jack propulsion device is provided with a guide for guiding the jack cradle movably between a propulsion position and a retreat position along a reaction force girder and a driving means for moving the jack cradle, and is provided in parallel with a tubular body propulsion device, A guide rail attached to and extendable in the pipe, a carrier guided by the guide rail and suspended from the upper part of the opening of the inclined shaft construction propulsion pipe by a rope so as to be able to ascend and descend by a rope, and A carrier support structure that can be lifted upward from the part and retracted from the propulsion tube insertion position, and a lifting / lowering rope driving means for the carrier provided in the carrier support structure. Inclined shaft propulsion construction apparatus to be. 4. The transporter according to claim 3, wherein a work floor is provided at an upper part of the cage, a work scaffold is provided at a lower part of the cage, and an entrance capable of moving from the inside of the cage to the work scaffold and the work floor is provided. The inclined shaft propulsion and construction device according to Claim 1. 4. The inclined shaft propulsion according to claim 3, wherein a support member is attached to a lower side of the cage of the transporter, and a lifting device is attached to the support member so that the lifted material can be taken into the work scaffold and transported together with the transporter. Construction equipment. The carrier support structure is supported on a gantry so as to be movable in the front-rear direction crossing the shaft of the shaft, and a guide rail of the carrier is attached to the front surface, a hoist is mounted, and the carrier is driven up and down by a hoisting rope. The guide rail is connected to the guide rail laid in the inclined shaft when the carrier is moved up and down in the inclined shaft, and the carrier can be moved in and out. The inclined shaft propulsion construction device according to claim 3, characterized in that the construction is performed. The guide rail provided in the inclined shaft is formed by joining two rail members with a plurality of horizontal members so as to be parallel at a required interval, and an inwardly inclined surface is formed symmetrically at one end, and the other end is formed. An outwardly inclined surface is formed symmetrically to the inwardly inclined surface so as to match the inwardly inclined surface, and the rails can be connected by matching the inwardly inclined surface and the outwardly inclined surface. The inclined shaft propulsion construction device according to claim 3.

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