JPH08319618A - Civil engineering work device, excavator, sheathing device and civil engineering work method - Google Patents

Abstract

PURPOSE: To reduce a space for construction works and make it possible to carry out operation in rainy weather by installing an excavator movable in the longitudinal direction and a sheathing device capable of lifting and lowering a sheet pile into a container movable in a bottomless box shape. CONSTITUTION: The ground inside a container 1 is excavated by a bucket 17 for an excavator 2, the bucket 17 is moved along a rail 6 and excavated soil and sand are discarded into a bucket 36 for removing soil, and a shallow ditch in depth of 1m is excavated. A sheathing device 3 is detached from the rail 6 and mounted on the bottom of the shallow ditch, and a deep ditch in depth of 2m is excavated while sheet piles 4 are pushed into the ground by cylinders 26. Sand is spread on the bottom of the deep ditch, a burying article is laid in the ditch, and soil and sand are backfilled and rolled. The sheet piles 4 are drawn up, a saddle 9 is lowered, a sheathing frame is connected, and struts are shrunk. The ditch is backfilled by soil and sand while pulling up the sheathing device 3, and arms 10-12 for the excavator 2 are bent in a chevron shape, and housed in the container 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a civil engineering work device, an excavating device, an earth retaining device, and a civil engineering work method.

[0002]

2. Description of the Related Art Generally, when pipes such as underground cables and pipes for electric wires are continuously buried in the ground such as a road surface, when asphalt is laid on the ground, first use an asphalt cutter or the like. Make two cuts on the asphalt surface that will be the width of the groove, then cut the asphalt surface with a general excavator and excavate earth and sand to a depth that does not require earth retaining for a predetermined length. Then, a number of sheet piles are erected along the both side walls of the groove, and the sheet piles are supported from inside the groove by a beam (called abdominal rise) along the groove. Supported by beams (cut beams), the sheet pile is driven with a general-purpose device to excavate deeper trenches while retaining soil, and after laying the pipe, backfill with earth and sand and rolling the sheet pile. Pull out one by one, the whole After backfilling, the surface is restored by the temporary pavement, are embedded continuously tube into the ground by repeating this.

However, conventionally, although the above work is to carry out civil works of a certain shape continuously, sheet piles and beams and excavators which are general-purpose materials, that is, backhoes are used.

[0004]

By the way, as described above, when a conventional earth retaining wall with a sheet pile is installed and a continuous pipe is buried by a general-purpose excavator, ordinary citizens pass by, Regardless of where you live, dust and noise can be a problem. In addition, there is a problem that a sheet pile, a beam, and an excavator to be used for construction must be temporarily placed, and that road surfaces are likely to obstruct traffic. Further, conventionally, since it is an outdoor work, there is a problem that it is difficult or impossible to work in rainy weather, and a decrease in work efficiency due to weather and climate cannot be avoided. In addition, the conventional method requires a great deal of labor because the earth retaining member is installed and removed manually by the worker, and the risk of the operation remains.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and the civil engineering apparatus of the present invention is a bottomless box-shaped container, and An excavator that is movable in the front-rear direction and that has a bucket for excavation at the free end of a bendable arm, and an earth retaining device that can raise and lower a sheet pile by a hydraulic cylinder are arranged, and the container is wheeled or It is equipped with moving means such as crawlers so that it can be towed or self-propelled.

Further, the excavating device has a plurality of columns provided in a bottomless box-shaped container and both ends thereof are guided by these columns,
Also, a pair of left and right rails that are moved up and down by a hydraulic cylinder, a saddle that is guided by the rails and that is slidably mounted in the front-rear direction of the container by a hydraulic cylinder, and an excavation bucket at the free end of a bendable arm. And excavating means attached to the saddle with a pin.

The excavator is arranged on the upper part of the container, and has two rotating shafts to which the sprockets are fixed, and the lower part of the container facing the respective rotating shafts. Is a shaft that rotates freely, a ring-shaped roller chain bridged between the two sprockets on the top of the container, a roller chain bridged between the sprockets above and below the container, and attached to both ends of the rail, It is preferred to have a tuning device consisting of clamps fixed at the same height of the roller chain of

The earth retaining device includes a pair of left and right soil retaining frames detachably attached to the elevating rail of the container, and a plurality of sheet piles provided on the soil retaining frame and capable of ascending and descending by a hydraulic cylinder inserted. A soil retaining device comprising a hydraulic cylinder that presses the soil retaining frame against the wall surfaces of the left and right grooves, and can be attached to and detached from a rail having a constant width even if the width of the soil retaining frame changes.

Further, as a civil engineering construction method for burying buried objects, a first step of digging a shallow groove by an excavating device disposed in a movable bottomless container, and soil held in the container A second step of installing a fastening device at the bottom of the groove by the first step and digging a deep groove while extending a plurality of sheet piles into the ground, and embedding a pipe for electric wires, a pipe for water and sewerage, etc. in the deep groove dug. A civil engineering method comprising a third step of installing an object and a fourth step of backfilling a groove while pulling up an earth retaining device, wherein a container is installed every time the first to fourth steps are performed. There is a civil engineering method in which buried objects are repeatedly laid continuously by moving them back and forth.

[0010]

The container configured as described above can be moved to the place where the pipe is laid while the excavator and the earth retaining device are stored, so that the material for earth retaining and the place where the general-purpose excavator is temporarily placed. Is unnecessary, and the prevention of traffic can be minimized on the road. In addition, this container is a bottomless box-shaped, and the inside and outside are partitioned by the roof, side walls, windows, and the lower enclosure, which reduces work efficiency even in rainy weather or weather and climate not suitable for outdoor work. The work can be done without any work, and at the same time, noise and dust caused by the work are not emitted to the outside. Further, since the outside light is taken in through the window 32, when the outside is bright, it is not necessary to illuminate the inside.

The excavator is suitable for excavating a groove, and by moving the rail up and down, it extends downward from a height corresponding to the depth of the groove being excavated to excavate the earth and sand, and the rail moves forward and backward. It can move and discharge sediment. This device eliminates the need for a general-purpose excavator, that is, the space required for the arm height during soil excavation and the arm height during soil excavation, which enables excavation inside the container. As a result, the space during construction required for laying buried objects can be minimized.

Further, the earth retaining device is suitable for retaining the side wall of the groove and can be attached to and detached from the rail. Therefore, when the container is moved, it can be connected to the rail and pulled up and stored inside the container. Can be used separately from the rail by lowering the rail and installing it at the bottom of the shallow groove. When excavating a deep trench, the sheet pile is excavated from the earth retaining frame by a cylinder. As described above, the soil retaining device requires almost no manual work by the worker, and can improve work efficiency and safety. The synchronizing device has the effect of keeping the two rails horizontal at the same height, and enables the work of the excavating device and earth retaining device to be carried out smoothly.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 4, the civil engineering work apparatus includes a bottomless box-shaped container 1, an excavation device 2 and an earth retaining device 3, and a wheel or a crawler mounted on the container 1 so as to be vertically movable. It can be towed or self-propelled by moving means 29 such as.

As shown in FIGS. 1 and 2, the excavator 2 has a pair of left and right rails 6 whose both ends are guided by a pair of front and rear columns 5 vertically installed inside the container 1 and attached to the columns 5. It is attached to the column 5 so that it can slide up and down by a vertical hydraulic cylinder 7 provided. On the pair of left and right rails 6, a saddle 9 which is guided by the rails 6 and which can slide in the front-rear direction of the container 1 by a horizontal hydraulic cylinder 8 is installed. And
A plurality of arms 10, 11, 12 that are flexibly coupled
And a plurality of hydraulic cylinders 13, 14, 15, 16 for bending the arms 10, 11, 12 and a bucket 17 attached to the free ends of the arms, and the excavating means 2A is constituted by a pin 18a and a pin 18b. It is attached to the saddle 9 so that excavation operation can be performed. Then, the bucket 17 is extended downward to excavate the earth and sand, and the earth and sand are discharged to the earth discharging bucket 36 installed outside the container 1 by moving upward and forward.

The container 1 includes a roof 30, a side wall 31 and
It is separated from the outside by a window 32 and a lower enclosure 33,
The window 32 allows external light to be taken in, but does not emit noise or dust to the outside. On the other hand, as shown in FIGS. 5, 6, and 7, the earth retaining device 3 includes the earth retaining frame 25.
And a sheet pile 4 that moves up and down by each cylinder 26, a cylinder 27 that pushes the earth retaining frame 25 against the side wall of the groove, and a metal fitting 35 for supporting the reaction force when the sheet pile is pushed by the cylinder 26 with the container 1 (see FIG. 2). The link 28 and the pin 34 provided on the top of the frame 25 can be attached and detached below the rail 6.

The earth retaining device 3 is attached to the lower side of the rail 6 by the link 28 and the pin 34 as described above when it is stored in the container 1 and when excavating a shallow groove. In the case of excavating a deep groove to be used, the structure is used in which it is separated from the rail 6 and used. At that time, the distance between the earth retaining frames 25 is different each time the work is performed, but even if there is a difference with the distance between the rails 6, the structure is such that it can be detachably adjusted by the rotation angle of the link 28.

FIG. 8 and FIG. 9 show a rail vertical movement tuning device, wherein the tuning device 24 is arranged on the upper part of the container 1 and a pair of front and rear rotary shafts to which the sprockets 19a and 19a 'are fixed. 20, a shaft 21 arranged at the lower part of the container 1 so as to face the shaft 20 and on which the sprocket 19b rotates freely, and an endless roller chain 22a installed between the front and rear sprockets 19a ', 19a'. Upper and lower sprockets 19a, 19
endless roller chain 22b installed between b
And a clamp 23 fixed to the ends of the rail 6 to fix both ends of the rail 6 to the roller chain 22b. When the two rails 6 are moved up and down by the cylinder 7, the left and right front and rear by the tuning device 24. It has a structure in which the height of is kept uniform.

FIGS. 10 (a) and 10 (b) show the first step of the civil engineering method. As shown in FIG. 10 (a), the earth and sand excavated by the excavator 2 are shown in FIG. 10 (b). First, a shallow groove b having a groove depth of 1 m that does not require earth retaining is excavated while discarding it in the earth discharging bucket 36 outside the container 1. 11 (a), (b)
Shows the second stroke, and as shown in FIG. 11 (a), after installing the earth retaining device 3 stored in the container 1 at the bottom of the shallow groove b separated from the rail 6, the sheet pile 4 is placed in the cylinder. A deep groove c having a groove depth of 2 m as shown in FIG. 11B is excavated while being pushed into the ground by 26.

12 (a), 12 (b), and 12 (c) show the third stroke, and as shown in FIG. 12 (a), after the sand d is laid on the bottom of the groove c, FIG. Laid an embedded object (pipe) a in the groove c,
After that, as shown in FIG. 12 (c), the earth and sand e is backfilled,
Roll over. 13 (a), (b), (c) show the fourth stroke,
After pulling up the sheet pile 4, lowering the saddle 9 and connecting the earth retaining frame as shown in FIG. 13 (a), as shown in FIG. 13 (b),
The cut beam is reduced, and as shown in FIG. 13 (c), the soil retaining device 3 is pulled up while the groove is backfilled with earth and sand. Then, as shown in FIG. 14, the arms 10 to 12 of the excavation device 2 are bent in a dogleg shape and housed in the container 1.

[0020]

As described above, since the civil engineering apparatus and method according to the present invention can carry out civil engineering by the excavating device 2 which can be stored inside the container 1 and the earth retaining device 3,
The space for construction is smaller than in the past, and traffic obstruction due to construction on the road can be minimized.

Further, the container 1 is partitioned by a roof, a side wall, a window, a lower enclosure and the like from the inside and outside of the container 1, so that it is possible to work in rainy weather and to prevent noise and dust due to work. In addition, since the environment is close to the room for workers, the influence of weather and climate is small, and work efficiency can be improved. Furthermore, since the excavation device 2 and the earth retaining device 3 are mechanized, work efficiency can be improved by reducing labor and improving safety. Further, the container 1 can take in external light through the window and can easily adjust the internal temperature and the like, so that the working environment can be improved as compared with the conventional civil engineering construction site.

On the other hand, the excavator 2 is used for raising and lowering and for the container 1.
Since it can move in the front-back direction, it can operate efficiently even in a relatively narrow container 1. Also, the earth retaining device 3 is
Since the sheet pile 4 can be moved up and down by hydraulic pressure, work efficiency and safety can be ensured.

[Brief description of drawings]

FIG. 1 is a side sectional view of a civil engineering work apparatus according to the present invention.

FIG. 2 is a cross-sectional view of the civil engineering work apparatus according to the present invention.

FIG. 3 is a front view of the civil engineering device according to the present invention.

FIG. 4 is an explanatory view showing a state in which the excavator and the earth retaining device are stored in the container.

FIG. 5 is a side view of the earth retaining frame.

FIG. 6 is a plan view of an earth retaining frame.

FIG. 7 is a front view of the soil retaining device.

FIG. 8 is a side view of the rail up-down tuning device.

FIG. 9 is a front view of the rail up-down tuning device.

[Fig. 10] Fig. 10 (a) and (b) are explanatory views of the first step of the civil engineering method.

[FIG. 11] (a), (b) It is a second step explanatory diagram of the civil engineering method.

[Fig. 12] (a), (b), (c) is a third step explanatory diagram of the civil engineering method.

[Fig. 13] (a), (b), (c) is a fourth step explanatory diagram of the civil engineering method.

FIG. 14 is an explanatory diagram in which the excavation device and the earth retaining device are housed in a container.

[Explanation of symbols]

1 container 2 excavation device as a whole 3 earth retaining device as a whole 4 sheet pile 5 columns 6 rails 7, 8 cylinders 9 saddles 10, 11, 12 arms 13, 14, 15, 1
6 Cylinder 17 Bucket 18a, 18b Pin 19 Sprocket 20, 21 Shaft 22a, 22b Roller chain 23 Clamp 24 Overall tuning device 25 Earth retaining frame 26, 27 Cylinder 28 Link 29 Wheel 30 Roof 31 Side wall 32 Window 33 Lower wall 34 pin 35 Fixing bracket

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yoshiki Kubo 3-1-1 Tam, Okayama Prefecture Tamano Mitsui Shipbuilding Co., Ltd. Tamano Works (72) Inventor Masayoshi Mitani 3-1-1 Tamano City, Okayama Prefecture Mitsui Engineering & Shipbuilding Co., Ltd., Tamano Works

Claims (5)

[Claims] 1. An excavation bucket (17) is provided at a free end of an arm (10 to 12) which is movable in the front-back direction of the container (1) and is bendable in a bottomless container (1). ) And a soil retaining device (3) capable of moving the sheet pile (4) up and down by a hydraulic cylinder (26), and moving the container (1) such as wheels or crawlers. Civil engineering equipment equipped with means (29) and towable or self-propelled. 2. A plurality of pillars (5) provided in a bottomless box-shaped container (1), both ends of which are guided by these pillars (5), and
A pair of left and right rails (6) that move up and down by a hydraulic cylinder (7)
And is guided by the rail (6) and the hydraulic cylinder
Excavating means comprising a saddle (9) slidably attached to the container (1) in the longitudinal direction by means of (8), and an excavating bucket (17) at the free end of a bendable arm (10-12). (2A) and an excavation device comprising the excavation means (2A) attached to the saddle (9) by pins (18a) and (18b). 3. A container (1) arranged on top of the container, and
Two rotating shafts (2a) with sprocket (19a, 19a ') fixed
0), a shaft (21) which is arranged in the lower part of the container (1) so as to face each rotary shaft (20), and in which the sprocket (19b) freely rotates, and two sprockets (19a) above the container. ′)
A ring-shaped roller chain (22a) bridged between them, a roller chain (22b) bridged between the sprocket (19a, 19b) above and below the container, and attached to both ends of the rail (6), and a pair of front and rear Tuning device (2) consisting of clamps (23) fixed at the same height on the roller chain (22b) of
The excavating device according to claim 2, further comprising 4). 4. A pair of left and right earth retaining frames (25) detachably attached to the elevating rail (6) of the container (1), and the earth retaining frame (2).
5) and the earth retaining wall consisting of a plurality of sheet piles (4) that can be moved up and down by the inserting hydraulic cylinder (26), and a hydraulic cylinder (27) that presses the earth retaining frame (25) against the left and right groove wall surfaces. A device (3) having an earth retaining device having a link (28) which can be attached to and detached from a rail (6) having a constant width even if the width of the earth retaining frame (25) is changed. 5. A first step of excavating a shallow groove by an excavation device (2) arranged in a movable bottomless container (1), and an earth retaining device (3) held in the container. Is installed in the bottom of the groove by the first step and a plurality of sheet piles (4) are extended into the ground to dig a deep groove, and the deep groove is used for electric wire pipes and water and sewer pipes. Third step of installing the buried object (a) and fourth step of backfilling the groove while pulling up the earth retaining device (3)
A civil engineering method comprising the steps of (1) to (4), wherein the buried object (a) is repeatedly laid continuously by moving the container (1) back and forth every time the first to fourth steps are performed. Construction method.