JP2001159150A - Side-cut excavator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a side-cut excavator at a low cost by miniaturizing the excavator as a whole because the distance from the center of an excavator body to a cutter can be shortened. SOLUTION: The lower section of a main frame 5 is supported by a side frame 1d of one belt of a self-propelled truck 1. Both sides of the upper section of the main frame 5 are supported by side frames 1e of the other belts via a back stay 6 respectively. A revolving superstructure 1c is installed on a traveling body 1a via a slewing device 1b in the self-propelled truck 1. A crane boom 24 derricked by a derricking cylinder 25 is mounted on the revolving superstructure 1c. A hoisting device 26 for lifting and lowering a cutter 14 and a cutter driving device 10 by a wire rope 30 which droops from the crane boom 24 is provided. The main frame 5, the crane boom 24 and the back stay are supported to the revolving superstructure as another example.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal moat excavator used for constructing a continuous wall for stopping water for constructing a basement portion of a concrete building, and more particularly to a horizontal moat excavator. Attach the main frame to the self-propelled truck,
A vertical guide frame that is horizontally moved by a horizontal moving device is attached to the main frame, and a cutter driving device that detachably couples and drives an August screw type cutter or an endless chain type cutter is mounted on the vertical guide frame by a vertical moving device. It is mounted so as to be lifted and lowered, and an auger screw type cutter or an endless chain type cutter is coupled to the cutter driving device and driven, and the cutter driving device is lowered to excavate the ground to a predetermined depth, and then the horizontal moving device is used. The present invention relates to a horizontal moat excavator that excavates the ground laterally by moving.

[0002]

2. Description of the Related Art As a conventional horizontal moat excavator, one using a reader is disclosed in Japanese Patent Application Laid-Open No. 10-306465. This publication has a structure in which an excavator is attached to a side frame of a traveling body of a self-propelled bogie via a main frame and a leader.

[0003]

In the above-mentioned conventional horizontal excavator, the leader and the main frame are arranged between the side frame and the cutter of the self-propelled bogie. The distance increases.
For this reason, the overturning moment on the cutter side increases,
A self-propelled bogie having a stable moment corresponding to that is required, and there is a problem that the entire excavator becomes large.

[0004] Further, since a leader is attached to the side frame, and the revolving body of the self-propelled trolley cannot rotate, there is a problem that it is necessary to provide a transfer device for transferring the cutter to be added from the side.

[0005] Further, since the main frame is attached to the reader attached to the side frame, the projection width from the side frame to the main frame is increased. For this reason, for assembling and disassembling the Yokobori excavator, even if the leader and the main frame are pinned to the side frame and mounted to be able to undulate forward, the lower part of the main frame will come into contact with the ground, I can't beat it. For this reason, when assembling and disassembling the leader and the main frame on the self-propelled carriage, it is necessary to suspend the main frame with one auxiliary crane and the back stay supporting the leader with another auxiliary crane. As a result, 2
There is a problem that an auxiliary crane is required, and the construction unit price increases.

In addition, since the main frame is mounted on a leader mounted on the side frame, it is impossible to adjust the distance between the main frame and the side frame. In order to adjust the deviation, the position and orientation of the main frame must be adjusted by traveling of the self-propelled bogie, and in order to adjust by this traveling, the entire cutter must be once collected on the ground. However, there is a problem that construction efficiency is reduced.

[0007] Further, since the leader must always be set up, the residents of the neighbors may be worried about the collapse of the excavator. Also, work cannot be performed in a place where there is an obstacle such as a pedestrian bridge at the top.

[0008] In view of the above problems, the present invention provides an inexpensive horizontal moat excavator that can reduce the distance from the center of the excavator body to the cutter, thereby reducing the size of the entire excavator. The purpose is to do.

It is another object of the present invention to provide a horizontal moat excavator which can adjust the excavation position and does not cause a decrease in construction efficiency due to raising the cutter.

It is another object of the present invention to provide a horizontal moat excavator in which assembly and disassembly of the front can be performed by a single auxiliary crane and assembly and disassembly can be easily performed.

It is another object of the present invention to provide a horizontal moat excavator capable of extending a cutter without requiring a transport guide mechanism.

Another object of the present invention is to provide a horizontal moat excavator having a mechanism capable of constructing a bottom portion of a continuous wall larger than an upper portion.

Further, according to the present invention, when a temporary wall of a basement of a single-family house is constructed, even if the outer and inner temporary walls are simultaneously constructed, the construction efficiency can be improved, and the space between the outer and inner temporary walls can be improved. Another object of the present invention is to provide a horizontal moat excavator capable of increasing the construction accuracy of a foundation wall while keeping the thickness of the foundation wall constant.

Further, the present invention provides a horizontal moat excavator in which the left corner of the bottom is less dug even if the tip of the cutter is narrowed in order to reduce the resistance during vertical excavation. That is another purpose.

[0015]

According to a first aspect of the present invention, there is provided a horizontal moat excavator in which a main frame of the horizontal moat excavator is mounted on a self-propelled bogie.
A vertical guide frame that is horizontally moved by a horizontal moving device is attached to the main frame, and a cutter driving device that detachably couples and drives an August screw type cutter or an endless chain type cutter is mounted on the vertical guide frame by a vertical moving device. It is mounted so as to be lifted and lowered, and an auger screw type cutter or an endless chain type cutter is coupled to the cutter driving device and driven, and the cutter driving device is lowered to excavate the ground to a predetermined depth, and then the horizontal moving device is used. In a horizontal moat excavator that excavates the ground in the horizontal direction by moving, the self-propelled bogie is configured such that a revolving body is installed on a traveling body via a revolving device, and a lower part of the main frame is one crawler track of the self-propelled bogie. And the upper part of the main frame is backed by the other crawler side frame. It is supported by a stay, and an up-and-down crane boom that can move up and down is attached to the revolving structure, and a hoisting device that raises and lowers the cutter and the cutter driving device with a wire rope hanging down from the crane boom is provided. And

As described above, if the main frame is directly attached to the side frame, the distance from the side frame to the cutter is short, and the overturning moment is reduced, so that the entire excavator can be downsized. . Further, the crane boom and the hoisting device provided in the horizontal moat excavator can be used as a crane, and no separate auxiliary crane is required for disassembly and assembly. In addition, a hoisting device can be used for the cutter driving device and the hanging of the cutter, and the hoisting device provided in the horizontal moat excavator can also be used for inserting a core material such as a shape steel into the excavated continuous groove. Can and do not need other cranes. In addition, since the crane boom can be easily attached and detached, it can be easily disassembled, and lateral excavation can be easily performed in a place where height is limited, such as under a footbridge.

In a second aspect of the present invention, the crane boom and the back stay are arranged such that the revolving unit having the crane boom can rotate all around.

As described above, by making the revolving body fully revolvable, the cutter piece can be preliminarily placed on the ground next to the horizontal moat excavator, not on the excavation groove, and added, so that there is no special transport device. Even the cutter can be added. In addition, by arranging the back stay so that the entire revolving structure can rotate all around, the crane boom can be excavated by the horizontal moat excavator in a direction avoiding obstacles such as a pedestrian bridge.

According to a third aspect of the present invention, in the horizontal moat excavator according to the first or second aspect, the position of the bracket provided on one of the side frames of the self-propelled carriage is adjusted by the advance / retreat device in a direction approaching or separating from the side frame. The main frame is attached to the main frame around the pin so that the upper part of the main frame is rotatable in a direction in which the main frame approaches and separates from the self-propelled bogie, and a hydraulic cylinder is provided between the main frame and the other side frame. It is characterized in that it is possible to adjust the verticality of the main frame and to adjust the position of the main frame from the side frame by the hydraulic cylinder by connecting with a back stay including or including a hydraulic cylinder.

As described above, since the vertical position and the position of the main frame can be adjusted, the work position from the side frame can be adjusted. Therefore, there is no need to drive the self-propelled vehicle for the work position adjustment. Disassembly and reassembly of the cutter for traveling is not required. Also, because it is not a position adjustment by traveling, it can be adjusted quickly,
The position adjustment accuracy is high and the underground continuous wall with high accuracy can be constructed.

According to a fourth aspect of the present invention, a main frame of the horizontal moat excavator is mounted on a self-propelled carriage, and a vertical guide frame horizontally moved by a horizontal moving device is mounted on the main frame. A cutter driving device for detachably connecting and driving a type cutter is mounted on the vertical guide frame so as to be lifted and lowered by an up / down moving device, and an auger screw type cutter or an endless chain type cutter is connected to the cutter driving device. After driving and lowering the cutter driving device to excavate the ground to a predetermined depth, in a horizontal moat excavator for excavating the ground in a lateral direction by lateral movement by the lateral moving device, the self-propelled bogie is turned on a traveling body. And a swiveling crane boom is attached to the revolving structure. And a hoisting device for raising and lowering the cutter and the cutter driving device by a wire rope hanging down from a crane boom, a bracket is provided on the revolving body, the main frame is mounted on the bracket, and the upper portion of the main frame is rotated. The main frame is supported with a backstay interposed between the body and the body.

With the structure in which the main frame is directly attached to the revolving structure, the distance from the revolving structure to the cutter is short, and the overturning moment is reduced.
The entire excavator can be downsized. Further, the crane can be used as a crane using a crane boom and a hoisting device provided on the revolving superstructure, and no separate auxiliary crane is required for disassembly and assembly. In addition, the hoisting device can be used for the cutter driving device and the hanging of the cutter, and the hoisting device provided in the horizontal moat excavator can also be used for inserting the shape steel into the excavated continuous groove. No need for other cranes. In addition, since the crane boom can be easily attached and detached, it can be easily disassembled, and lateral excavation can be easily performed in a place where height is limited, such as under a footbridge.

According to a fifth aspect of the present invention, there is provided the horizontal moat excavator according to the fourth aspect, wherein the crane boom is mounted on a bracket for mounting the main frame.

As described above, if the crane boom is attached to the bracket for attaching the main frame,
The mounting structure of these devices can be simplified.

According to a sixth aspect of the present invention, there is provided the horizontal excavator according to the fourth or fifth aspect, wherein one end of a back stay having a hydraulic cylinder is connected to a bracket for mounting the main frame.

As described above, if one end of the back stay is connected to the bracket for mounting the main frame, that is, the bracket provided at the center of the front part of the revolving structure,
The back stay does not obstruct the opening and closing of the door of the driver's cab of the self-propelled trolley, and no modification of the self-propelled trolley is required.

According to a seventh aspect of the present invention, there is provided a horizontal moat excavator.
In any one of the above, the bracket provided on the revolving body is provided with a pin whose position is adjusted in a direction approaching and moving away from the revolving body by an advance / retreat device, and the main frame is centered on the pin, and the upper part of the main frame is The main frame and the revolving unit are connected to each other by a backstay including a hydraulic cylinder or a hydraulic cylinder, and the main frame and the revolving structure are connected to each other by a backstay including a hydraulic cylinder. The adjustment and the position adjustment of the main frame from the revolving superstructure are enabled.

As described above, since the vertical position and the position of the main frame can be adjusted, the work position from the revolving structure can be adjusted. Therefore, there is no need to drive the self-propelled vehicle for the work position adjustment. Disassembly and reassembly of the cutter for traveling is not required. Further, since the position adjustment is not performed by traveling, the position adjustment accuracy is high, and an underground continuous wall with high accuracy can be constructed.

According to the eighth aspect of the present invention, there is provided a horizontal moat excavator.
In any one of the above, the back stay is held on the main frame when the horizontal moat excavator is transported.

By adopting such a transport structure, the main frame and the backstay can be transported integrally, and the transport can be made compact.

According to a ninth aspect of the present invention, there is provided a horizontal moat excavator.
In any one of the above, the bracket to which the main frame is attached is configured to be insertable between the revolving structure of the self-propelled bogie and the bracket for mounting the crane boom and its up-and-down cylinder, so that the self-propelled bogie is used And a crane having an existing boom can be used.

As described above, since a crane having an existing boom can be used as a self-propelled bogie, the present invention can be carried out without modifying the self-propelled bogie, and a horizontal moat excavator can be provided at low cost. Can be.

A tenth aspect of the present invention is the horizontal moat excavator according to any one of the first to ninth aspects, wherein the crane boom is a telescopic boom.

As described above, by using the telescopic boom as the crane boom, the telescopic boom can be shortened when the crane boom is not used. It can be constructed without giving anxiety such as machine collapse. In addition, even when there is an obstacle such as a pedestrian bridge at the top, the obstacle can be avoided by contracting and retracting the telescopic boom.

According to a eleventh aspect of the present invention, there is provided the horizontal moat excavator according to any one of the first to tenth aspects, wherein a guide portion is provided along a vertical direction on a back surface of a cutter support frame constituting the cutter, and the vertical guide frame is provided. In addition, a holder is provided which is protruded and retracted from the vertical guide frame and is attached to and detached from the guide portion, and the cutter is vertically supported while the guide portion is held by the holder.

By providing such a cutter holding mechanism, the verticality of the excavation hole can be obtained even when the cutter is suspended by the crane boom.

According to a twelfth aspect of the present invention, there is provided the horizontal moat excavator according to any one of the first to eleventh aspects, wherein the cutter and the cutter driving device are horizontally rotatable at the lower end of the wire rope wound and fed by the cutter hoisting device. And a rotary joint connected to and supported by the rotating shaft.

As described above, if the rotary joint is provided at the lower end of the wire rope of the hoisting device, after the cutter is pulled up together with the cutter driving device, the cutter and the cutter driving device can be inverted to perform excavation. For this reason, even when the shape of the lower end of the cutter has a shape such that one side is vertical and the other side forms an arc shape, it is possible to prevent the uncut portion of the bottom corner portion of the excavation hole from being dug.

According to a thirteenth aspect of the present invention, there is provided the horizontal moat excavator according to any one of the first to twelfth aspects, wherein a slide frame is attached to the main frame so as to be able to move laterally along the main frame instead of the vertical guide frame. The vertical guide frame is mounted so as to be tiltable around a pin, and a tilt device for tilting the vertical guide frame is mounted between the vertical guide frame and the slide frame.

As described above, if the vertical guide frame can be tilted, the vertical guide frame can be tilted even when the lower end of the cutter has a shape such that one side is vertical and the other side is arcuate. By inclining the cutter, it is possible to prevent the digging hole from remaining at the bottom corner of the digging hole without raising the cutter or the cutter driving device.

According to a fourteenth aspect of the present invention, there is provided a horizontal moat excavator according to any one of the first to thirteenth aspects, wherein the cutter driving device has two output portions with an interval in a direction approaching or moving away from the self-propelled vehicle. A power transmission device is provided, and a cutter is attached to each of the output portions at an interval from each other.

As described above, if two cutters are provided before and after, two rows of temporary walls can be simultaneously constructed, thereby further improving the work efficiency and uniformly constructing the thickness of the foundation wall. The performance of the foundation wall is improved.

According to a fifteenth aspect of the present invention, there is provided the horizontal moat excavator according to any one of the first to fourteenth aspects, wherein the cutter is an auger screw type cutter, and a lower end portion of the cutter is provided with a drilling tool for vertical excavation during horizontal excavation. It has a tip digging tool that is attached and replaced, and the tip digging tool has a large digging diameter when rotating the cutter in the digging direction, and a small digging diameter when digging in the opposite direction to the digging direction, The excavation claw is rotatably attached to the rotating portion about a vertical pin.

As described above, if the tip excavator capable of increasing the excavation diameter is provided at the lower end of the cutter, two rows of temporary walls are simultaneously or separately constructed, and when connecting the lower end of the temporary wall, the tip excavator is used. It can be constructed simply by replacing.

[0045]

FIG. 1 is a side view showing an embodiment of a horizontal moat excavator according to the present invention in a working state, FIG. 2 is a front view thereof, and FIG. 3 (A) is a plan view thereof. In these figures, reference numeral 1 denotes a traveling vehicle, and the self-propelled vehicle 1 includes a traveling body 1a.
The revolving unit 1c is installed on the revolving unit 1b via the revolving unit 1b.
A bracket 3a is provided on the left and right side frames 1d of the traveling body 1a, and a main frame 5 is attached to the bracket 3a such that an upper portion thereof is rotatable in a direction away from the self-propelled trolley 1 with a pin 4 as a center. The other side frame 1
e, another bracket 3b is attached, and both ends of the bracket 3b and both ends of the upper part of the main frame 5 are connected by a back stay 6 composed of a hydraulic cylinder or having a hydraulic cylinder, and the main frame 5 is supported. .

A vertical guide frame 7 is mounted on the main frame 5 so as to be movable in the horizontal direction.
The vertical guide frame 7 is moved laterally by the expansion and contraction of. In addition, as the lateral moving device of the main frame 5, for example, 2
It is possible to use a stepped telescopic hydraulic cylinder or a configuration using a hydraulic motor.

As shown in FIG. 3B, the vertical guide frame 7 has a pair of guides 9, and a guide portion 11 provided on the back of the cutter driving device 10 is slidably fitted to the guides 9. By doing so, the cutter driving device 10 is mounted on the vertical guide frame 7 so as to be vertically movable. Also, as shown in FIG. 1, the vertical guide frame 7 and the cutter driving device 10
Between them, a hydraulic cylinder 12 as an up-and-down moving device whose upper end is detachably connected to the cutter driving device 10 is interposed.

Reference numeral 13 denotes a jack device that supports both ends of the main frame 5 by extending and landing during excavation work. The jack device 13 receives a rotational force on the main frame 5 generated by a lateral force acting on a cutter 14 described later that acts upon lateral excavation, and receives the rotating body 1 of the self-propelled bogie 1.
This is to prevent the occurrence of a torsional moment on c.
After assembling the main frame 5 to the bracket 3a,
Used to support the main frame 5 when connecting the back stay 6 to the bracket 3b.

The cutter driving device 10 drives an endless chain type cutter or an auger screw type cutter 14 as shown in this embodiment. The cutter 14
Is formed by connecting cutter pieces 14a to 14c, and a plurality of divided screw augers 16 are attached to a cutter support frame 15, respectively. Then, the upper and lower ends of the screw type auger 16 are connected or disconnected to reinforce and disassemble.

In the present embodiment, FIG.
As shown in (B), a pair of guide portions 17 are provided along the vertical direction on the back surface of the cutter support frame 15, and the vertical guide frame 7 is attached to the vertical guide frame 7.
A holder 18 is provided which is protruded and retracted from the guide portion 17 and is attached to and detached from the guide portion 17. When the holder 18 is engaged with the guide portion 17, the cutter 14 is supported vertically. The holder 18 has a link 20 rotatably mounted on a vertical pin 19 provided on the front surface of the vertical guide frame 7.
The holder 18 can be engaged and disengaged from the guide portion 17 by extending and contracting a hydraulic cylinder 21 provided between the links 20 and 20.

Numeral 23 is a bracket attached to the bracket for attaching the crane boom 24 and its up-and-down cylinder 25 at the front of the revolving unit 1c. The crane boom 24 and the undulating cylinder 25 are detachably pinned to the bracket 23. Crane boom 24 of this example
Consists of a telescopic boom incorporating a telescopic hydraulic cylinder. Reference numeral 26 denotes a hoisting device attached to the bracket 23. A wire rope 30 wound up and fed out by the hoisting device 26 is suspended from the crane boom 24. At the lower end of the wire rope 30, a suspender 32 is provided.
2, the cutter driving device 10 and the like are connected via a connecting bar 33.

A procedure for excavating using such a horizontal moat excavator will be described. In the present embodiment, the telescopic boom used as the crane boom 24 is extended, and a plurality of cutter pieces 14a to 1
4c is connected in advance, and is attached to the cutter driving device 10 in this state, and the cutter 14 is lifted by the hoisting device 26 as shown in FIGS. Then, as shown in FIG. 4 (B), the cutter 14 is vertically and vertically moved by engaging a holder 18 provided on the vertical guide frame 7 with a guide portion 17 provided on the cutter support frame 15 of the cutter 14. It is movably supported to provide verticality, and the hoisting device 26
Is driven to the feeding side to loosen the wire rope 30 and drive the cutter driving device 26, whereby vertical excavation can be performed at a stretch to a predetermined depth.

The main frame 5 has a bracket 3a.
To the main frame 5
Is connected by the back stay 6,
The verticality can be adjusted by expanding and contracting the hydraulic cylinder of the back stay 6.

As the vertical excavation proceeds, the cutter driving device 1
The guide portion 11 of the vertical guide frame 11
When the guide 9 is lowered to a position where it can be engaged with the guide drive 11, as shown in FIG.
Engages. In such an engaged state, the cutter 1
Since the guide 4 does not need to be guided, the holder 18 is removed from the guide portion 17 of the cutter 14 by contracting the hydraulic cylinder 21 as shown in FIG.

As shown in FIG. 7, the cutter driving device 1 is attached to a hydraulic cylinder 12 mounted on the vertical guide frame 7.
When the cutter driving device 10 descends to a position where 0 can be connected, the hydraulic cylinder 12 is connected to the frame of the cutter driving device 10 by the pin 27. When performing lateral excavation, the cutter 14 does not need to be supported by the hoisting device 26, so that the wire rope 30 is loosened as shown in FIG.
Separate from 0.

In the horizontal excavation, as shown in FIGS. 7 and 8, the hydraulic cylinder 12 is expanded and contracted, and the cutter 14 is repeatedly moved up and down while operating the horizontal hydraulic cylinder 8 to move the cutter 14 together with the cutter driving device 10. Mainframe 5
Is performed while the screw auger 16 is rotated by the cutter driving device 10. After the lateral excavation, a solidifying material such as soil cement is poured into the excavated groove 35, and the excavated soil 35 is reciprocated several times while being mixed and stirred with the excavated earth and sand.

If necessary, as shown in FIG.
A core material 36 such as an H-beam is inserted into the excavated groove 35. At this time, as shown in FIG. 10, since the main frame 5 and the back stay 6 are arranged outside the revolving unit 1c so that the revolving unit 1c can fully rotate, as shown in FIG. That is, the crane boom 24 can be oriented in any direction. Therefore, the core material 36 placed on the ground can be suspended by the horizontal moat excavator itself, and there is no need to use another crane.

The above operation is repeated to construct the underground continuous wall to a predetermined length. During the lateral excavation, as shown in FIG. 12, since the crane boom 24 can be contracted, there is no fear that the local residents will collapse the excavator. Further, as described above, since the revolving unit 1c can be oriented in an arbitrary direction, the revolving unit 1c is turned sideways and the crane boom 24 is contracted, so that the entire height of the excavator is reduced to the height of the main frame 5. Since the height can be reduced to H or less, lateral excavation work can be performed even in a place where the height is restricted such as a pedestrian bridge.

Further, since the revolving unit 1c can revolve all around,
As shown in FIG. 13, the cutter 14 buried underground
The cutter driving device 10 from the
The hoisting device 26 is lifted by the hoisting device 26, the revolving unit 1c is turned, the cutter driving device 10 is lowered to the ground, and the cutter driving device 10 is connected to the grounding replenishing cutter piece 14d (this may be a combination of a plurality of cutter pieces). Then, these are lifted by the hoisting device 26, and as shown in FIG. 14, if the cutter piece 14d is positioned and connected to the cutter 14 buried in the ground by turning the revolving unit 1c, the next excavation work is performed. You can move. Therefore, when adding a cutter piece, without providing a special transport device as described in JP-A-10-306465,
A cutter can be connected, and a horizontal moat excavator can be provided at low cost.

FIG. 15 (A) is a side view showing the appearance of the crane portion serving as the self-propelled carriage 1 of the horizontal moat excavator during transportation.
Since the self-propelled carriage 1 has the crane boom 24, the lateral excavation front can be assembled by itself using the crane boom 24. That is, first, as shown in FIG. 15B, the vertical guide frame 7, the hydraulic cylinder 12, the jack device 1
3. The main frame 5 incorporating the hydraulic cylinder 8 is suspended by the hoisting device 26 and connected to the bracket 3a by the pin 4.

Next, as shown in FIG.
3, the main frame 5 is supported and the back stay 6 is suspended, and both ends of the back stay 6 are connected to the main frame 5 and the bracket 3b of the self-propelled vehicle 1. Next, the cutter driving device 10 and the cutter 14 are lifted as shown in FIGS. 5 and 6, and are moved to the work position to start the work. Therefore, the excavator can be assembled without using any other auxiliary cranes, and can be disassembled in the reverse order. The disassembly allows the self-propelled carriage 1 to be used as a normal crane.

FIGS. 17 (A) and 17 (B) show that the main frame 5 is configured so that the distance from the traveling structure 1 can be adjusted so that the working radius from the center of the revolving structure 1c to the horizontal excavation work site can be adjusted. An example of the mounting structure of the main frame 5 is shown. In this example, the traveling body 1
bracket 3a attached to side frame 1d
A link 41 is rotatably mounted on a pin 40 by a pin 40, a main frame 5 is rotatably mounted on an upper end of the link 41 by a pin 4, and a lower end of the main frame 5 and the link 41 are connected by a hydraulic cylinder 43. Depending on the degree of expansion and contraction of the hydraulic cylinder 43, L is set so that the main frame 5 is in a state of being close to the traveling body 1a as shown in FIG. 17A or a state of being separated as shown in FIG. It is configured to be adjustable in a range.

FIGS. 18A to 18C show the main frame 5.
18A and 18B show another example of the position adjusting device.
As shown in the figure, the bracket 3c fixed to both ends of the front and rear sides of the side frame 1d and the bracket 44 fixed to the lower end of the main frame 5 are connected to a pin 45 provided in the bracket 44 and an elongated hole 46 provided in the bracket 3c. 18A and 18C, and as shown in FIGS.
The central portion of the side frame 1d and the central portion of the main frame 5 are connected by a hydraulic cylinder 47, and the distance between the side frame 1d of the main frame 5, that is, the self-propelled vehicle 1 is in the range of L by the expansion and contraction of the hydraulic cylinder 47. And the construction position is adjusted.

If such a position adjusting device for the main frame 5 is used, when the excavation position is out of order, the back stay 6 can be expanded and contracted and the position of the main frame 5 can be adjusted.
There is no need to run the self-propelled carriage, the position can be adjusted, and disassembly and reassembly of the cutter for traveling is not required. Further, since the position adjustment is not performed by traveling, the position adjustment accuracy is high, and an underground continuous wall with high accuracy can be constructed.

FIG. 19 is a side view showing another embodiment of the horizontal moat excavator according to the present invention in a working state, and FIG. 20 (A) is a plan view thereof. The front view of FIG. 19 is represented similarly to FIG.
In this embodiment, a bracket 49 is provided at a front portion of the revolving unit 1c, and the main frame 5 is provided on the bracket 49 with the pin 4 so that an upper portion thereof can approach and separate from the self-propelled vehicle 1. A back stay 50 made of or having a hydraulic cylinder is mounted between both ends of the upper part of the main frame 5 and the bracket 49, and the main frame 5 takes a vertical posture by the expansion and contraction of the back stay 50. It is something that you get. Also in the present embodiment, the cutter driving device 10 and the vertical guide frame 7 of the cutter 4 shown in FIGS.
And a similar display mechanism is used.

Further, the crane boom 24 composed of a telescopic boom is attached to the bracket 49 similarly to the above embodiment.
And the hoisting device 26 of the crane boom 24 and the hoisting cylinder 26 are mounted. The hoisting device 26 may be mounted on the crane boom 24 or on the revolving unit 1c. In addition, the wire rope 30 of the hoisting device 26 is connected to the cutter driving device 10 via the suspending tool 32 and the connecting bar 33.

When excavation is performed using the horizontal moat excavator of this embodiment, the telescopic boom used as the crane boom 24 is extended, and a plurality of cutter pieces 14a to 14g on the ground, as in the case of the above embodiment. 14c in advance and attached to the cutter driving device 10 in this state.
0 (B), as shown in FIG.
Lift 4 Then, as shown in FIG. 4B, the holder 1 provided on the vertical guide frame 7 is provided on the guide portion 17 provided on the cutter support frame 15 of the cutter 14.
8 is engaged, the cutter 14 is supported vertically, the verticality is obtained, the hoisting device 26 is driven to the feeding side, the wire rope 30 is loosened, and the cutter driving device 10 is driven. Vertical excavation to a depth of

The main frame 5 has a bracket 49.
To the main frame 5
Are connected by the back stay 50, the verticality can be adjusted by extending and retracting the hydraulic cylinder of the back stay 6.

As the vertical excavation proceeds, the cutter driving device 1
When the guide unit 11 of the cutter drive unit 10 descends to a position where it can be engaged with the guide 9 of the vertical guide frame 7, the guide 9 is moved to the guide unit 11 of the cutter driving device 10 as shown in FIG.
Engages. In such an engaged state, the cutter 1
Since the guide 4 does not need to be guided, the holder 18 is removed from the guide portion 17 of the cutter 14 by contracting the hydraulic cylinder 21 as shown in FIG.

As shown in FIG. 21, when the cutter driving device 10 descends to a position where the cutter driving device 10 can be connected to the hydraulic cylinder 12 attached to the vertical guide frame 7, the hydraulic cylinder 12 is moved to the frame of the cutter driving device 10. To pin 27. When performing lateral excavation, the cutter 14 does not need to be supported by the hoisting device 26, so that the wire rope 30 is loosened as shown in FIG. And separated.

The lateral excavation is performed in the same manner as in the above-described embodiment.
As shown in FIG. 5, the hydraulic cylinder 8 is operated to move the cutter 14 laterally along the main frame 5 together with the cutter driving device 10 while the hydraulic cylinder 12 is extended and retracted to repeatedly move the cutter 14 up and down, and This is performed while rotating the screw auger 16 by the cutter driving device 10. After the lateral excavation, a solidifying material such as soil cement is injected into the excavated trench, mixed with the excavated earth and sand, and reciprocated several times while stirring. Further, if necessary, as shown in FIG.
Insert into 5.

Also in this embodiment, as shown in FIG. 22, since the crane boom 24 can be contracted, there is no fear that the local residents will collapse the excavator.

Further, as shown in FIG. 23, the cutter driving device 10 is removed from the cutter 14 buried underground,
The cutter driving device 10 is lifted by the hoisting device 26,
The revolving unit 1c is swiveled together with the main frame 5, the cutter driving device 10 is lowered to the ground, and connected to a grounding replenishing cutter piece 14d (which may be a combination of a plurality of cutter pieces). If it is lifted by the upper device 26 and the cutter piece 14d is positioned on the cutter 14 buried in the ground and connected by turning the revolving unit 1c as shown in FIG. 14, the next excavation work can be started. it can.

FIG. 24 (A) is a side view showing the appearance of the crane unit serving as the self-propelled carriage 1 of the horizontal moat excavator during transportation.
Since the self-propelled carriage 1 includes the crane boom 24, the self-propelled carriage 1 can be used to assemble the lateral excavation front by itself, similarly to the above-described embodiment. That is, first, FIG.
As shown in (B), the main frame 5 in which the vertical guide frame 7, the hydraulic cylinder 12, the jack device 13, and the hydraulic cylinder 8 are assembled is suspended by the hoisting device 26, and is connected to the bracket 49 and the pin 4.

Next, as shown in FIG. 25 (A), the jack device 13 is extended to support the main frame 5, the back stay 50 is suspended, and both ends of the back stay 50 are attached to the bracket 49 of the main frame 5 and the self-propelled carriage 1. Connect to Next, the cutter driving device 10 and the cutter 14 are lifted as shown in FIGS. 5 and 6, and are moved to the work position to start the work. Therefore, also in the present embodiment, the excavator can be assembled without using another auxiliary crane, and disassembly can be performed in the reverse procedure. If disassembled, the self-propelled carriage 1 can be used as a normal crane. be able to.

As shown in FIG. 25B, at the time of transportation or the like, the back stay 50 is contracted, and the connection end on the bracket 49 side is fixed to the main frame 51 by a pin 51. By doing so, the main frame 51 and the back stay 50 can be integrated and transported, and are compacted and transported.

As disclosed in Japanese Patent Laid-Open No. 10-280436, when a basement wall is constructed using a horizontal moat excavator, a plan sectional view of FIG. 26A and a plan view of FIG.
As shown in the side sectional view of FIG. 5, in order to construct the foundation wall 53 of the basement 52, temporary walls 54 and 55 are constructed inside and outside the foundation wall 53, respectively. In this case, unexcavated portions 58 and 59 as shown in the hatched portions in FIG. 27A or the hatched portions in FIG. 27B are formed in the corner portions 57 of the bottom sides 56 of the temporary walls 54 and 55. In the case of FIG. 27A, FIG.
As shown in the figure, the one side portion 14x of the cutter piece 14a at the lower end is an undigged portion when formed in an arc shape. In the case of FIG. 27 (B), it is an unexcavated portion caused by the necessity of making the locus of the lower end corner in the case of the endless chain type cutter in a curved shape. In order to eliminate such unexcavated portions 58 and 59, in the case of the related art, it is necessary to excavate an extra deep portion by the depth indicated by H1, and the construction efficiency is reduced.

FIG. 28 is a diagram showing an example of means according to the present invention for solving this problem. In this embodiment, the cutter driving device 10 and the suspender 32
29A and 29B, the guide bar 11 of the cutter driving device 10 is provided not only on the back but also on the front, as shown in FIGS. The guide portion 17 is provided not only on the rear portion but also on the front portion of the cutter support frame 15 of the fourteenth embodiment. Then, when excavating the undigged portion 58 at the corner, the cutter 14 is once pulled up, the cutter driving device 10 and the cutter 14 are inverted via the rotary joint 60, and the vertical portion 1 on one side surface of the tip cutter piece 14a is cut.
4y is directed to the unexcavated portion 58, and excavation is performed while the cutter 14 is moved closer to the unexcavated portion 58 as shown by an arrow X in FIG. 28, so that the unexcavated portion 58 is excavated. By inverting the cutter driving device 10 and the cutter 14 in this way, it is not necessary to dig a groove deeper than necessary.

FIG. 30 and FIG. 31 (A), which is a partial cross-sectional side view thereof, show another embodiment for excavating the unexcavated portion 58. The embodiment shown in FIG. Instead of the frame 7, a slide frame 61 is attached so as to be able to move laterally by a hydraulic cylinder 8 along the main frame 5, and the vertical guide frame 7 is attached to the slide frame 61 so as to be tiltable about a pin 62. Further, a tilting device such as a hydraulic cylinder 63 for tilting the vertical guide frame 7 is attached between the vertical guide frame 7 and the slide frame 61.

Then, as shown in FIG. 30, when the vertical guide frame 7 is tilted by the extension of the hydraulic cylinder 63 and the arcuate portion 14x side of the cutter piece 14a at the lower end is protruded, the remaining portion 58 is excavated. This unexcavated portion 58 can be removed. With the structure in which the vertical guide frame 7 is inclined in this way, as shown in FIG. 28, it is not necessary to pull up the cutter driving device 10 or the cutter 14 once to turn over the cutter driving device 10, and the working efficiency is increased.

FIG. 31 (B) shows an example of a structure in which the main frame 5 can be moved in the direction of approaching and separating from the bracket 49, and a hydraulic cylinder 64 as an advance / retreat device is provided on the bracket 49 on the revolving unit 1c side. A pin 6 attached to a bracket 65 provided at the end thereof at the lower end of the main frame 5
6 and the pin 66 is movably fitted in the elongated hole 49a provided in the bracket 49, so that the position of the main frame 5, that is, the excavation work position can be adjusted by expansion and contraction of the hydraulic cylinder 64. Things.

With such a configuration, the vertical posture and the position of the main frame 5 can be adjusted by the expansion and contraction of the back stay 50, and the excavation position can be adjusted by the self-propelled vehicle 1.
It is possible to perform the operation accurately and easily without depending on the traveling of the vehicle.

FIG. 32 is a side view showing a state in which the temporary drive walls 54 and 55 are excavated by replacing the temporary drive walls 54 and 55 with the cutter 14A having a size corresponding to the width of the foundation wall 53. Cutter 14 that fits the width of the foundation wall 53
By preparing A, the temporary wall 5
There is no need to prepare a clamshell to excavate between 4, 55, and the construction cost is reduced, and there is no need to place an extra machine in a narrow site, so that the working environment can be improved. In FIG. 4, such a cutter 14A has a structure in which cutter augers 16 are detachably attached to both ends of a cutter support frame 15, and the screw auger 16 is replaced to constitute the cutter 14A. Can be narrowed.

FIG. 33 is a side view showing another embodiment of the present invention.
Two rows of output units 10 spaced apart from each other
a, 10b are provided, and two cutters 14A, 14B are attached to each of the output sections 10a, 10b with an interval therebetween. By setting the distance between the cutters 14A and 14B to a size that matches the thickness of the foundation wall 53, the temporary walls 54 and 55 can be simultaneously constructed, and two rows of temporary walls can be simultaneously constructed, thereby further improving work efficiency. As it can be improved and the thickness of the foundation wall can be constructed uniformly,
The performance of the foundation wall is improved.

When the two rows of temporary walls 54 and 55 are constructed, the bottoms thereof are closed to prevent seepage of groundwater from the bottom of the temporary wall between the temporary walls, and a suitable foundation wall 53 is constructed. Can be. To close the gap between the bottoms of the temporary walls 54 and 55, as shown in FIG.
By providing a tip excavating tool 67 whose excavating diameter can be increased at the bottom of the temporary wall 54, the temporary wall 54, 5
The one connected between the bottoms of 5 can be constructed.

As such a tip excavator 67, FIG.
As shown in the front view of (A) and the bottom view of FIG.
At the lower end of the shaft of the vertical portion 14y of the tip cutter piece 14a, a plurality of excavating claws 70 are rotatably mounted around a plurality of shafts 69 provided in the circumferential direction. The excavation claw 70 is configured to be closed when it is opened and rotated in the direction opposite to the arrow R.
Then, after performing vertical excavation using the normal tip cutter piece 14a, the cutter 14 is once wound up, recombined with the tip excavator 67, and the cutter 14 is inserted while rotating in the direction opposite to the direction of excavating the vertical hole. When the side excavation is performed, the tip excavator 67 is rotated in the excavation direction, and the friction with the excavation surface rotates the excavation claw 70 about the shaft 69 to open the excavator, thereby increasing the excavation diameter of only the extremity. As shown in
A temporary wall to which the lower ends of the temporary walls 54 and 55 are connected can be constructed.

Since the crane boom 24 is constituted by a telescopic boom with pins that can be raised and lowered, during horizontal excavation in a place such as a pedestrian bridge where height is restricted, as shown in FIG. If the boom 24 is removed, the entire excavator becomes the height H of the main frame 5, so that the horizontal excavation work can be performed without any trouble.

FIG. 37 shows a general telescopic crane having a crane boom 24 composed of a telescopic boom.
Is a mounting bracket for mounting the crane boom 24 and the up-and-down cylinder 25, and is mounted by pins 72 and 73. FIG. 38 shows another embodiment of the self-propelled carriage used in the present invention, and the distance L between the mounting pin holes of the bracket 71 in the front-rear direction so that the bracket 71 can be used as it is.
1 are equal and the height h1 of the bracket 71 is
In addition, a bracket 74 having a pin hole for mounting the bracket 71 with the pins 75 and 76 is provided on the upper part thereof.

If such a bracket 74 is provided, a crane having an existing boom can be used as a self-propelled vehicle, which can be carried out without remodeling the self-propelled vehicle. Can be provided.

[0090]

According to the first aspect, the main frame is directly attached to the side frame of the self-propelled vehicle.
Since the distance from the side frame to the cutter is short and the overturning moment is small, the entire excavator can be downsized.

Further, the crane boom and the hoisting device provided in the horizontal moat excavator can be used as a crane, and another auxiliary crane is not required for disassembly and assembly. In addition, a hoisting device can be used for the cutter driving device and the hanging of the cutter, and the hoisting device provided in the horizontal moat excavator can also be used for inserting a core material such as a shape steel into the excavated continuous groove. Can and do not need other cranes. In addition, since the crane boom can be easily attached and detached, it can be easily disassembled, and lateral excavation can be easily performed in a place where height is limited, such as under a footbridge.

According to the second aspect, in the first aspect, the crane boom and the back stay are arranged such that the revolving body having the crane boom can rotate around the entire circumference. In addition, the cutter can be added and placed beforehand on the ground beside the horizontal moat excavator, so that the cutter can be added without a special transport device. In addition, by arranging the back stay so that the entire revolving structure can rotate all around, the crane boom can be excavated by the horizontal moat excavator in a direction avoiding obstacles such as a pedestrian bridge.

According to the third aspect, in the first or second aspect, the verticality adjustment and the position adjustment of the main frame are made possible, so that it is not necessary to drive the self-propelled vehicle to correct the work position. The disassembly and reassembly of the cutter for elimination are not required. Further, since the position adjustment is not performed by traveling, the position adjustment accuracy is high, and an underground continuous wall with high accuracy can be constructed.

According to the fourth aspect, the main frame is mounted on the revolving unit of the self-propelled bogie, and the main frame is supported with the back stay interposed between the upper part of the main frame and the revolving unit. The distance from the body to the cutter is reduced, the overturning moment is reduced, and the entire excavator can be downsized. Further, the crane can be used as a crane using a crane boom and a hoisting device provided on the revolving superstructure, and no separate auxiliary crane is required for disassembly and assembly.

The hoisting device can be used for the cutter driving device and the hanging of the cutter, and the hoisting device provided in the horizontal moat excavator is also used for inserting the shape steel into the excavated continuous groove. Can and do not need other cranes. In addition, since the crane boom can be easily attached and detached, it can be easily disassembled, and lateral excavation can be easily performed in a place where height is limited, such as under a footbridge.

According to the fifth aspect, since the crane boom is mounted on the bracket on which the main frame is mounted in the fourth aspect, the mounting structure of these devices can be simplified.

According to the sixth aspect, in one of the fourth and fifth aspects, one end of a back stay having a hydraulic cylinder is connected to the bracket for mounting the main frame. There is no need to modify the self-propelled trolley because it does not obstruct the opening and closing of the vehicle.

According to the seventh aspect, in any one of the fourth to sixth aspects, the vertical position and the position of the main frame can be adjusted, so that the working position from the revolving structure can be adjusted. There is no need to drive the self-propelled carriage for correction, and disassembly and reassembly of the cutter for traveling is not required. Further, since the position adjustment is not performed by traveling, the position adjustment accuracy is high, and an underground continuous wall with high accuracy can be constructed.

According to the eighth aspect, in any one of the fourth to seventh aspects, the backstay is configured to be held on the main frame during transportation of the horizontal moat excavator.
The main frame and the back stay can be integrated and transported, and are compacted and transported.

According to the ninth aspect, in any one of the fourth to eighth aspects, the bracket to which the main frame is attached is the same as the revolving unit of the self-propelled trolley, the bracket for attaching the crane boom and its up / down cylinder. In this way, a crane with an existing boom can be used as a self-propelled bogie, so it can be carried out without remodeling the self-propelled bogie. Can be provided.

According to the tenth aspect, in any one of the first to ninth aspects, by using the telescopic boom as the crane boom, the telescopic boom can be reduced while the crane boom is not used. In the case of construction of a basement, construction work can be performed without giving the residents of the neighbors anxiety about collapse of the excavator. In addition, even when there is an obstacle such as a pedestrian bridge at the top, the obstacle can be avoided by contracting and retracting the telescopic boom.

According to the eleventh aspect, in any one of the first to tenth aspects, there is provided a holder which is protruded and retracted from the vertical guide frame and is attached to and detached from the guide portion, and the holder holds the guide portion. In the above, since the cutter is vertically supported, the verticality of the excavation hole can be obtained even when the cutter is suspended by the crane boom.

According to the twelfth aspect, in any one of the first to eleventh aspects, the cutter and the cutter driving device are connected to the lower end of the wire rope wound and fed by the cutter hoisting device so as to be horizontally rotatable. Since the rotary joint for supporting the cutter is provided, the cutter and the cutter driving device can be pulled up, and then the cutter and the cutter driving device can be inverted to perform excavation. For this reason, even when the shape of the lower end of the cutter has a shape such that one side is vertical and the other side forms an arc shape, it is possible to prevent the uncut portion of the bottom corner portion of the excavation hole from being dug.

According to the thirteenth aspect, in any one of the first to twelfth aspects, the vertical guide frame can be inclined, so that the shape of the lower end of the cutter is such that one side is vertical and the other side is arcuate. Even in the case of having, the inclination of the vertical guide frame, that is, the inclination of the cutter prevents the undigging of the bottom corner of the excavation hole without raising the cutter or the cutter driving device as in claim 12. can do.

According to a fourteenth aspect, in any one of the first to thirteenth aspects, the cutter driving device is provided with two output portions at an interval in a direction approaching and separating from the self-propelled carriage. Since the cutters are attached to the output part with a space between each other, two rows of temporary walls can be installed at the same time, further improving the work efficiency and uniforming the thickness of the foundation wall. So that the performance of the foundation wall is improved.

According to the fifteenth aspect, in any one of the first to fourteenth aspects, the cutter is an August screw type cutter, and a tip excavator capable of increasing the excavation diameter is provided at the lower end of the cutter in a replaceable manner. When two rows of temporary walls are constructed at the same time or separately, and the lower end of the temporary wall is connected, it can be constructed simply by changing the excavation tool.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a horizontal moat excavator according to the present invention in a working state.

FIG. 2 is a front view of FIG.

3A is a plan view of FIG. 1, and FIG. 3B is a partial plan view thereof.

FIGS. 4A and 4B are plan views respectively showing an engagement structure of a cutter with respect to a vertical guide frame of the present embodiment, and a detached state and an engaged state.

FIG. 5 is a side view showing a state where a cutter is lifted in the present embodiment.

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a side view showing a state where lateral excavation is performed by a cutter in the present embodiment.

FIG. 8 is a front view of FIG. 7;

FIG. 9 is a front view showing a state where the core material is being inserted into the excavation groove by the hoisting device in the present embodiment.

FIG. 10 is a plan view showing a state where the revolving body is swung in the present embodiment.

FIG. 11 is a front view of FIG. 10;

FIG. 12 is a rear view showing a state in which the crane boom is contracted and laid down in the present embodiment.

FIG. 13 is a side view showing a state before the additional cutter piece is lifted in the present embodiment.

FIG. 14 is a front view showing a state in which a cutter piece is added in the present embodiment.

FIG. 15A is a side view showing the transporting posture of the self-propelled trolley in the present embodiment, and FIG. 15B is a side view showing a main frame assembling operation state.

FIG. 16 is a side view showing an operation state of assembling the back stay to the main frame in the present embodiment.

FIGS. 17A and 17B are side views showing another mounting structure for the side frame with respect to the main frame in the present embodiment in a state where the main frame is close to the side frame and a state where the main frame is separated therefrom, respectively. is there.

FIG. 18A is a plan view showing another attachment structure to the main frame with respect to the side frame in the present embodiment, FIG. 18B is a side view showing the attachment structure at the front and rear ends of the side frame, FIG. 3C is a side view showing a mounting structure of the hydraulic cylinder at the center of the side frame.

FIG. 19 is a side view showing another embodiment of the horizontal moat excavator according to the present invention in a working state.

20A is a plan view of FIG. 19, and FIG. 20B is a side view showing a state where the cutter is lifted in the embodiment of FIG.

FIG. 21 is a side view showing a state where lateral excavation is performed by a cutter in the embodiment of FIG. 19;

FIG. 22 is a side view showing a state where the crane boom is contracted and the work is being performed in the embodiment of FIG. 19;

FIG. 23 is a side view showing a state before the additional cutter piece is lifted in the embodiment of FIG. 19;

24 (A) is a side view showing the transport attitude of the self-propelled carriage in the embodiment of FIG. 19, and FIG. 24 (B) is a side view showing the state of assembling the main frame.

25 (A) is a side view showing a state of assembling the back stay to the main frame in the embodiment of FIG. 19, and FIG. 25 (B) is a state of assembling the back stay to the transport main frame. It is a top view.

FIG. 26A is a plan sectional view showing the structure of a foundation wall,
(B) is a side sectional view thereof.

FIGS. 27A and 27B are side cross-sectional views each showing an undigged portion at a corner of a basement by excavation.

FIG. 28 is a front view showing another embodiment of the horizontal moat excavator according to the present invention for preventing excavation in a working state.

29 (A) is a plan view of a cutter driving device used in the horizontal moat excavator of FIG. 28, and FIG. 29 (B) is a plan view of the cutter.

FIG. 30 is a front view showing another embodiment of the horizontal moat excavator according to the present invention for preventing excavation in a working state.

31A is a side cross-sectional view showing the mounting structure of the vertical guide frame of the present embodiment in FIG. 30, and FIG. 31B is a side view showing another mounting structure of the main frame to the bracket.

FIG. 32 is a side view showing a configuration for excavation between temporary inner and outer walls in the embodiment of FIG. 19;

FIG. 33 is a side view showing another embodiment of the horizontal moat excavator according to the present invention for simultaneous excavation of a temporary wall in a working state.

FIG. 34 is a side view showing another embodiment of the horizontal moat excavator according to the present invention for connecting a temporary wall bottom portion in a working state.

FIG. 35 (A) is a side view showing one embodiment of a tip excavator according to the present invention for bottom excavation in a working state;
(B) is a bottom view thereof.

FIG. 36 is a side view showing a state in which the crane boom is removed and work is being performed in the embodiment of FIG. 19;

FIG. 37 is a side view showing a general telescopic crane.

FIG. 38 is a side view showing another embodiment of the horizontal moat excavator according to the present invention, which also serves as the bracket of the crane of FIG. 37.

[Explanation of symbols]

1: self-propelled truck, 1a: traveling body, 1b: turning device, 1c:
Revolving structure, 1d: side frame, 3a, 3b: bracket, 4: pin, 5: main frame, 6: back stay, 7: vertical guide frame, 8: hydraulic cylinder, 9: guide, 10: cutter driving device, 11 : Guide part, 1
2: hydraulic cylinder, 13: jack device, 14, 14A
~ 14C: cutter, 15: cutter support frame, 1
6: screw auger, 17: guide, 18: holder,
24: crane boom, 25: hoisting cylinder, 26: hoisting device, 32: suspension tool, 33: connecting bar, 35: excavation groove, 36: core material, 41: link, 43: hydraulic cylinder,
44: Bracket, 45: Pin, 46: Slot, 47: Hydraulic cylinder, 49: Bracket, 49a: Slot, 50:
Backstay, 52: basement, 53: foundation wall, 54, 5
5: Temporary wall, 58, 59: Undigged part, 60: Rotary joint, 61: Slide frame, 62: Pin, 63: Hydraulic cylinder, 64: Hydraulic cylinder, 66: Pin, 67: Tip digging tool, 69: Shaft , 70: drilling claw, 71, 74: bracket, 72, 73, 75, 76: pin

Claims (15)

[Claims] 1. A main frame of a horizontal moat excavator is mounted on a self-propelled carriage, and a vertical guide frame horizontally moved by a horizontal moving device is mounted on the main frame, and an auger screw type cutter or an endless chain type cutter is detachably connected. A cutter driving device mounted on the vertical guide frame so as to be moved up and down by a vertical moving device, and driving the cutter driving device by connecting an auger screw type cutter or an endless chain type cutter to the cutter driving device. After lowering and excavating the ground to a predetermined depth, in a horizontal moat excavator that excavates the ground in a lateral direction by lateral movement by the lateral moving device, the self-propelled bogie is mounted on a traveling body via a revolving device. And the lower part of the main frame is a side frame of one crawler track of the self-propelled bogie. The upper part of the main frame is supported by a side frame of the other crawler belt via a backstay, and the crane boom that can be moved up and down is mounted on the revolving structure, and the cutter and the cutter are driven by wire ropes hanging down from the crane boom A horizontal moat excavator comprising a hoisting device for raising and lowering the device. 2. The horizontal moat excavator according to claim 1, wherein the crane boom and the back stay are arranged such that the revolving structure having the crane boom can rotate all around. 3. The self-propelled vehicle according to claim 1, wherein the bracket provided on one of the side frames of the self-propelled vehicle is moved from the side frame by an advance / retreat device.
Providing a pin whose position is adjusted in the separating direction, mounting the main frame around the pin so that its upper part is close to the self-propelled trolley, and rotatably in the separating direction, the main frame and the other side frame Between
A horizontal moat excavator, characterized in that the hydraulic cylinder can be used to adjust the verticality of a main frame and the position of a main frame from a side frame by being connected by a backstay including or including a hydraulic cylinder. 4. A main frame of a horizontal moat excavator is mounted on a self-propelled bogie, and a vertical guide frame horizontally moved by a horizontal moving device is mounted on the main frame, and an auger screw type cutter or an endless chain type cutter is detachably connected. A cutter driving device mounted on the vertical guide frame so as to be moved up and down by a vertical moving device, and driving the cutter driving device by connecting an auger screw type cutter or an endless chain type cutter to the cutter driving device. In a horizontal moat excavator that lowers the ground to a predetermined depth and then excavates the ground in a lateral direction by lateral movement by the lateral movement device, installing a revolving unit on the self-propelled vehicle on a traveling body via a revolving device. A rotatable crane boom is attached to the revolving structure, A hoisting device that raises and lowers the cutter and the cutter driving device with a wire rope hanging down from the system, a bracket is provided on the revolving body, and the main frame is attached to the bracket, and the upper part of the main frame and the revolving body are connected. A horizontal moat excavator characterized by supporting a main frame with a backstay interposed between them. 5. The excavator according to claim 4, wherein the crane boom is attached to a bracket for attaching the main frame. 6. The excavator according to claim 4, wherein one end of a back stay having a hydraulic cylinder is connected to a bracket for mounting the main frame. 7. The bracket according to claim 4, wherein the bracket provided on the revolving body is provided with a pin whose position is adjusted in a direction approaching or separating from the revolving body by an advancing / retracting device. The main frame is rotatably mounted in a direction in which an upper portion thereof approaches and separates from the revolving structure. The main frame and the revolving structure are connected by a backstay including a hydraulic cylinder or a hydraulic cylinder. A horizontal moat excavator characterized in that the verticality of the main frame and the position of the main frame from the revolving structure can be adjusted by the hydraulic cylinder. 8. The horizontal moat excavator according to claim 4, wherein the back stay is held on the main frame during transportation of the horizontal moat excavator. 9. The bracket according to claim 4, wherein the bracket to which the main frame is attached can be inserted between a revolving unit of the self-propelled vehicle and a bracket for attaching the crane boom and its up / down cylinder. Characterized in that a crane having an existing boom can be used as a self-propelled bogie. 10. The horizontal moat excavator according to claim 1, wherein the crane boom is a telescopic boom. 11. A cutter according to claim 1, wherein a guide portion is provided along a vertical direction on a back surface of a cutter support frame constituting the cutter, and the vertical guide frame projects from the vertical guide frame. A horizontal moat excavator, comprising: a holder which is submerged to be attached to and detached from the guide portion, and wherein the cutter is vertically supported while the guide portion is held by the holder. 12. A rotating device according to claim 1, wherein a cutter and a cutter driving device are connected to a lower end of a wire rope that is wound and fed by the winding device of the cutter so as to be horizontally rotatable and supported. A horizontal moat excavator characterized by having a joint. 13. The slide frame according to claim 1, wherein a slide frame is attached to the main frame so as to be able to move laterally along the main frame instead of the vertical guide frame, and the slide frame can be tilted about a pin. A horizontal moat excavator, wherein the vertical guide frame is mounted on the vertical guide frame, and a tilting device for tilting the vertical guide frame is mounted between the vertical guide frame and the slide frame. 14. The power transmission device according to claim 1, wherein the cutter driving device is provided with a power transmission device having two output portions at an interval in a direction approaching and separating from the self-propelled vehicle, A horizontal moat excavator, wherein cutters are attached to each output section at an interval from each other. 15. A tip excavator according to claim 1, wherein said cutter is an auger screw type cutter, and is attached to a lower end portion of said cutter in exchange for an excavating tool for vertical excavation during horizontal excavation. The tip drilling tool has a drilling claw with respect to the rotating portion so that the drilling diameter is large when rotating the cutter in the drilling direction and small when drilling in the direction opposite to the drilling direction. A horizontal moat excavator characterized by being mounted rotatably about a vertical pin.