JPH0351437Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a face monitoring device that is applied to large-section semi-mechanical digging shield machines and manual shielding machines.

(Conventional technology) In the case of large-section shields, the face is divided into multiple compartments using vertical beams and movable floors, etc., and each compartment is excavated from the upper level to the lower level, and then piled up, and finally the entire cross-section of the face is We are conducting excavation and retaining.

(Problem that the invention aims to solve) In this case, it is necessary to excavate many compartments just to excavate one ring of segments, and it takes time. It becomes necessary. In other words, it is necessary to check whether the excavation and heaping order of each compartment is being carried out as specified. If this is not done, the excavation of the next compartment will be interrupted before the heaping has been completed sufficiently. ,
It is extremely dangerous, as yamadome is sometimes practiced.

(Means for Solving the Problems) The present invention attempts to solve such problems, and in a large cross-section shield in which the face is divided into a plurality of compartments by a vertical beam and a movable floor, each of the compartments is It is characterized by comprising a displacement detection device for a movable floor drive jack, and a face status display section that displays a detection signal from the displacement detection device,
The purpose is to provide a face monitoring device that performs excavation management of each compartment in a large cross-section shield and mountain face management, and allows construction to be carried out safely.

(Function) In the large cross-section shield to which the present invention is applied, the face is divided into vertical beams and a movable floor, and the front face of each compartment is secured by the movable floor, or each compartment is hand-dug. In some cases, the movable bed is gradually protruded to excavate a face, and is used as a foothold for manual excavation.

When the excavation and heaping in each compartment are completed, the driving jacks of each movable floor are extended so that the movable floor is brought into contact with the face. The protrusion length of the movable floor in the compartment is detected by a displacement detection device of a movable floor drive jack, and the detection signal is sent to a status display section of the face to display the protrusion length of each movable floor,
This is to manage the face of each compartment.

(Example) Hereinafter, a description will be given of the illustrated implementation in which the present invention is applied to a large cross-section semi-mechanical digging shield equipped with a plurality of excavators.

1 is a shield main body, which has multiple compartments A, B, C, D, E, F, G,
It is divided into H and I, and excavation is carried out from the upper compartment, and then it is piled up, and this excavation and heaping are sequentially applied to the lower compartment, and the entire cross section of the face is excavated and piled.

3 in the figure is the half moon where the face top plate is held.
Multiple units of movable hoods or four-boring devices are installed.

Excavators 4, 5, 6, 7, and 8 are disposed in each of the compartments B, D, E, F, and H, respectively.

In the illustrated embodiment, the excavator has compartment A;
Excavators are installed in C, G, and I, but in some cases, excavators are also installed in the same compartments.

Numeral 9 is a face jack for fixing the face on the front side of the shield body, and one or more jacks are installed in each compartment.

Reference numerals 10, 11, 12, 13, 14, and 15 are movable floors installed in the compartments A, B, C, D, E, and F, respectively, and are used to secure the front surface of the shield body. If the excavation of the compartment is carried out by hand, the movable floor is gradually protruded and a face is excavated to serve as a foothold for manual excavation.

Now, the operation and stop status of the driving body of the excavator can be determined by turning on and off the power of the driving body using the lamps 27 and 28 of the monitoring panel 20 shown in FIG. The lamps 29, 30, and 31 are configured to be lit. In addition, the face jack 9 and the movable floor 10 to 10 are provided independently in each compartment.
When power units for each of the 15 drive jacks are installed, the power units are turned on and off by lamps 32, 33, 34, 35, 36, 3 installed at corresponding positions on the monitoring panel 20.
By turning on and off the lights at 7 and 38, the status can be recognized.

Each of the movable floors 10, 11, 12, 13,
14 and 15 are provided with stroke meters (not shown) constituting a displacement detection device for the drive jack 40 of each movable floor. A display device 2 disposed at a position corresponding to each movable floor on the monitoring panel 20 detects the protrusion length of 15 and transmits the detection signal.
1, 22, 23, 24, 25, 26, and each of the movable floors 10 to 1 is displayed on each display device 21 to 26.
It displays the amount of 5 in numerical value.

Alternatively, instead of a stroke meter, a single length or a plurality of lengths are set, and a limit switch is attached to a part of the movable floor corresponding to the set length, and when the movable floor protrudes by the set length, the limit switch is activated. A lamp on the monitoring panel 20 may be lit so that the protrusion length of the movable floor can be determined.

Incidentally, the monitoring panel 20 is provided with a display device (not shown) that displays the protrusion length of the heap retaining device of the face top plate of the half moon or the like.

According to the above embodiment, the movable floor of the compartment divided into large-section shield faces is made to collide with the faces after completion of excavation and heaping, and the drive jack or limit switch of the movable floor is The stroke of the movable floor is displayed on the display devices 21 to 26 on the monitoring panel 20, or the fact that the movable floor has moved so as to collide with the face is displayed by a lamp, and the mountain caused by the movable floor in the compartment is displayed. In addition, when the excavator is in operation, the lamps 27 to 31 of the monitoring panel 20 are turned on so that the excavation status of each section can be monitored. If each room is equipped with a power unit for driving the movable floor, turn it on and off using the lamp 32 on the monitoring panel 20.
By lighting up 38, it is possible to monitor the condition of the face in more detail.

(Effects of the invention) As described above, according to the invention, in a large cross-section shield in which the face is divided into a plurality of sections by a vertical beam and a movable floor, a displacement detection device for a movable floor driving jack in each compartment, and a displacement detection device for the same are provided. A face status display unit is provided to display a detection signal from the face, the protrusion length of the movable floor caused by the driving jack is detected by the detection device, and this detection signal is sent to and displayed on the face status display unit. Accordingly, the face in each compartment can be easily and accurately managed, and horizontal excavation work of a large cross section can be safely performed using the shield.

[Brief explanation of the drawing]

Figure 1 is a front view of the face monitoring device according to the present invention;
2 and 3 are a front view and a longitudinal side view, respectively, of a shield equipped with the same monitoring device. 1...Shield body, 2...Vertical beam, 4, 5,
6, 7, 8... excavator, 10, 11, 12, 1
3, 14, 15...Movable floor, 20...Monitoring panel, 2
1, 22, 23, 24, 25, 26...display device, 40...movable floor drive jack, A, B,
C, D, E, F... Compartment room.

Claims (1)

[Scope of utility model registration request] In a large cross-section shield in which a face is divided into a plurality of sections by a vertical beam and a movable floor, a displacement detection device for a movable floor driving jack in each compartment, and a face status display section that displays a detection signal from the displacement detection device. A face monitoring device characterized by comprising: