JPH0447086B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to excavation equipment used when sinking a pneumatic caisson, which is used as a foundation structure, into the ground.

[Prior Art] When excavating the ground beneath a pneumatic caisson at a high depth, the atmospheric pressure inside the excavation work chamber is high, resulting in a poor working environment and greatly limiting the working time. As a countermeasure to this problem, as shown in Japanese Patent Publication No. 59-16054, a method has been proposed in which the excavator is remotely controlled while directly viewing the vicinity of the excavator's shovel from a capsule under atmospheric pressure. but,
If the remote control method were to be developed, it would be possible to project images from a television camera onto a monitor on the ground and operate the excavator remotely while viewing the images.

[Problem that the invention seeks to solve]

When excavating the lower part of a caisson, it is necessary to excavate the ground under the caisson uniformly to prevent the caisson from tilting, but whether or not it can be excavated uniformly depends largely on the skill of the operator. It also affects efficiency. In addition, if you attach a television camera to the excavator and remotely control the excavator while observing the excavation area on a monitor TV on the ground, the field of view is narrow, there is no sense of perspective, and it is difficult to confirm the direction. It is not possible to confirm the exact location of the excavation, so it is difficult to uniformly excavate the ground beneath the caisson and sink the caisson without tilting.

[Purpose and structure of the invention]

The purpose of this invention is to provide excavation equipment for sinking a pneumatic caisson that can advantageously solve the above-mentioned problems. Excavator running rails 4 are fixed to the lower surface of the ceiling slab 3, and a rotating frame 6 attached to the lower part of a running frame 5 that runs along the rails 4 is equipped with an excavator 7 at the tip. In the excavation equipment for sinking a pneumatic caisson in which the base end of the excavation arm 8 is attached so as to be able to move up and down, position display sections 10 are provided on the inner surface 9 of the peripheral wall of the working chamber 2 and are arranged in the circumferential direction of the working chamber. A television camera 11 for photographing the vicinity of the excavation part is attached to the revolving frame 6 of the machine, and a television camera 12 for photographing the excavator is attached to the lower surface of the ceiling slab 3, and an operation control panel 13 and a monitor for operating the excavator are installed. The excavation equipment for caisson sinking is characterized in that a television 14 is installed in an operation control room 15 provided on the ground.

〔Example〕

Next, the present invention will be explained in detail using illustrated examples.

The drawing shows one embodiment of the present invention, and shows a work chamber 2 in a new machine caisson 1.
A position display section 10 consisting of a large number of vertical lines arranged at equal intervals in the circumferential direction and numerical symbols attached to the vertical lines is displayed on the inner surface 9 of the peripheral wall of the working room 2. A pair of excavator running rails 4 extending in parallel are fixed, and a running frame 5 running along the rails 4 is provided with a running drive device and a brake device (each not shown), and At the bottom of frame 5,
A swing frame 6 is attached which is rotated by a swing drive device (not shown), and a first arm 16 and a second arm 17 slidably fitted therein are connected by a telescoping hydraulic cylinder 18. They are connected to form a telescoping excavation arm 8, the base end of the monitor television 4 is pivotally connected to the rotating frame 6 by a horizontal shaft 19, and the distal end portion of the first arm 16 and the rotating frame 6 are tilted. are connected via a hydraulic cylinder 20.

An excavating tool 7 consisting of an excavating packet is pivotally attached to the tip of the second arm 17 by a horizontal shaft 21, and the excavating tool 7 and the second arm 17 are connected via a hydraulic cylinder 22 for rotating the excavating tool. A television camera 11 is attached to the rotating frame 6 of the excavator 23, which is made up of the traveling frame 5 and various parts supported by the traveling frame 5. A television camera 12 for photographing the excavator is attached to the peripheral wall of the work chamber.

An operation control panel 13 and a monitor television 14 are provided in an operation control room 15 provided on the ground.
The television camera 11 for photographing the vicinity of the excavation part and the television camera 12 for photographing the excavator are connected to a monitor television 14 via a cable (not shown), and are connected to the operation control section of the excavator 23 and the operation control panel 1.
3 is connected to the excavator 23 by a cable (not shown), and the operator in the operation control room 15 can check the position of the excavator 23 and the position display section 10 displayed on the inner surface 9 of the peripheral wall of the working room 2 on the monitor TV 14. While confirming the position of the excavated part by the tool 7, the operation control panel 13 is operated to uniformly excavate the ground under the caisson.

The excavated earth and sand is put into an earth removal bucket 24 in the work room 2, and the earth removal bucket 24 is carried out through a material shaft 25 equipped with an aerodynamic device. Further, a man shaft 26 with an airlock device is attached to the ceiling slab 3.

The invention can be implemented either in a pneumatic caisson with a working chamber of circular cross section or in a pneumatic caisson with a working chamber of square cross section. Further, as the excavation tool 7, a rotary excavation tool or any other type of excavation tool may be used instead of the excavation bucket.

The position display section 10 may be a color-coded display section, or the position display section 10 may also be provided on the ceiling of the caisson work room.

Next, other examples of the position display section and other examples of the installation state of the position display section will be explained with reference to FIGS. 3 to 8.

In the case of the first example shown in FIG.
and position display parts consisting of numbers 1 to 12 are provided at intervals in the circumferential direction of the peripheral wall, and the working chamber 2
Position display portions consisting of a plurality of display lines 31 and symbols A to F are provided on the ceiling surface 30 of No. 7 at intervals in the longitudinal direction of the ceiling surface on both sides of the width direction of the ceiling surface.

In the case of the second example shown in FIG. 4, a large number of position display parts of different colors are provided on the inner surface 28 of the peripheral wall of the rectangular working chamber 27 in a line in the peripheral direction of the peripheral wall, and the width of the ceiling surface 30 of the working chamber 27 is On both sides of the ceiling, a plurality of position display units of different colors are arranged in the longitudinal direction of the ceiling.

In the case of the third example shown in FIGS. 5 and 6, the inner surface 2 of the peripheral wall in the square or rectangular working chamber 27 is
A large number of position display parts of different colors are arranged in the lower half of the 8 in the circumferential direction of the peripheral wall.

In the case of the fourth example shown in FIGS. 7 and 8, a side display section of a different color is provided in the middle of the inner surface 28 of the peripheral wall on each side of the square or rectangular working chamber 27, and the peripheral wall on each side A plurality of side longitudinal direction position display parts of different colors are provided at the lower part of the inner surface 28,
With the side display section and the side longitudinal direction position display section,
A position display section is configured.

The display means of the third and fourth examples can also be employed on the inner surface of the peripheral wall of a circular work chamber.

〔Effect of the invention〕

According to this invention, the pneumatic caisson 1
An excavator running rail 4 is fixed to the lower surface of the ceiling slab 3 of the working room 2, and a rotating frame 6 attached to the lower part of a running frame 5 that runs along the rail 4 is equipped with an excavator tool 7 at the tip. In the excavation equipment for sinking a pneumatic caisson, in which the base end of a retractable excavation arm 8 is attached so as to be able to move up and down, position display units 10 are arranged on the inner surface 9 of the peripheral wall of the working chamber 2 in the circumferential direction of the working chamber. provided,
A television camera 11 for photographing the vicinity of the excavation part is attached to the revolving frame 6 of the excavator, and a television camera 12 for photographing the excavator is attached to the lower surface of the ceiling slab 3, and an operation control panel 13 for operating the excavator. Since the monitor television 14 is installed in the operation control room 15 provided on the ground,
An operator in the operation control room 15 starts operation while checking the position of the excavator 23 on the monitor TV 14, the position display section 10 displayed on the inner surface 9 of the peripheral wall of the work room 2, and the position of the excavation part by the excavation tool 7. The ground under the caisson can be excavated by operating the control panel 13, and therefore the ground under the caisson can be easily, efficiently and uniformly excavated without requiring any skill.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional perspective view showing excavation equipment for sinking a new caisson, and Fig. 2 is a longitudinal cross-section showing an enlarged part of the excavation equipment. It is a diagram. 3 to 8 show other examples of position display means, FIGS. 3 and 4 are bottom views showing the first and second examples, and FIG. 5 shows the third example. 6 is a developed view of the third example, FIG. 7 is a bottom view of the fourth example, and FIG. 8 is a developed view of the fourth example. In the figure, 1 is a neutral caisson, 2
is a work room, 3 is a ceiling slab, 4 is an excavator running rail, 5 is a running frame, 6 is a swing frame, 7
1 is an excavation tool, 8 is an extendable excavation arm, 9 is an inner surface of the surrounding wall, 10 is a position display unit, 11 is a television camera for photographing the vicinity of the excavation part, 12 is a television camera for photographing the excavator, 13 is an operation control panel, and 14 is a monitor tv set,
15 is an operation control room, 16 is a first arm, 17 is a second arm, 18 is a hydraulic cylinder for expansion and contraction, 20 is a hydraulic cylinder for elevating, 22 is a hydraulic cylinder for rotating an excavator, and 23 is an excavator.

Claims (1)

[Claims] 1 Working room 2 in pneumatic caisson 1
An excavator running rail 4 is fixed to the lower surface of the ceiling slab 3 of
In the excavation equipment for sinking a pneumatic caisson, in which the base end of a telescoping excavation arm 8 equipped with an excavation tool 7 at the tip is attached so as to be able to move up and down, a position indicator is provided on the inner surface 9 of the peripheral wall of the working chamber 2. parts 10 are arranged side by side in the circumferential direction of the work room, a television camera 11 for photographing the vicinity of the excavation part is attached to the revolving frame 6 of the excavator, and a television camera 12 for photographing the excavator is attached to the lower surface of the ceiling slab 3, This excavation equipment for sinking a pneumatic caisson is characterized in that an operation control panel 13 and a monitor television 14 for operating the excavator are installed in an operation control room 15 provided on the ground.