JPH05195693A - Chipping method for tunnel inner wall - Google Patents

Abstract

PURPOSE:To mechanically perform the chipping work of a tunnel inner wall and reduce the dust generated during the chipping work. CONSTITUTION:The high-pressure water generated by a high-pressure water generating device 1 is fed to a chipping device 3, the high-pressure water is injected to a tunnel inner wall from the injection section 4 of the chipping device 3, and the inner wall is chipped by the pressure of the high-pressure water. The sludge generated by the chipping is received by a sludge reception section 5, and it is sucked and discharged by a suction device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of hanging an inner wall of a tunnel, particularly an inner wall of a subway which is an underground structure.

[0002]

2. Description of the Related Art Underground structures such as subway tunnels are difficult to replace or rebuild even if they have reached the end of their useful lives once they are used for public use. For this reason, it is necessary to repair or reinforce the existing structure at an appropriate time by an appropriate method to measure the endless life.

Typical deterioration phenomena of the inner wall of the tunnel are water leakage, cracks, exfoliation and exfoliation of concrete, and corrosion of exposed parts. In order to deal with these damages, the defective portion is usually peeled off, and the cut portion is filled with cement or resin.

By the way, an example of the order of construction and use of repairing concrete wall surfaces is as follows. (1) Substrate treatment (concrete chipping) Examination of concrete floats, joint cutting with a cutter around deteriorated concrete, chipping of deteriorated concrete, rebar scraping (2) Reinforcing bar rust prevention rust conversion type anticorrosive agent application (3) Anchor casting All screw anchors are fixed with capsule anchors (4) Cleaning of the chipping surface Cleaning the concrete chipping surface with water and brush (5) Undercoating (primer application) Brushing and spraying a polymer cement primer (6) More mortar coating (7) Welding joint attachment (8) Two-layer mortar coating

However, such repair work is usually a work at midnight, and the work space is small, and there are many manual works in the upward and sideways directions, and the working environment is not good. Particularly, the work of picking up the wall surface requires skill and it is difficult to secure workers. Moreover, since dusting occurs during the chipping work,
It may also affect the health of workers.

[0006]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, in particular, problems in the fishing work.

[0007]

DISCLOSURE OF THE INVENTION The present invention is intended to cause a slinging device to perform a slinging operation on the inner wall of a tunnel by using high pressure water. Specifically, the high pressure water generated by the high pressure water generating device is used. Is supplied to the slinging device, is sprayed from the spraying part of the slinging device to the inner wall of the tunnel, the inner wall is suspended by the pressure of high-pressure water, and the sludge generated by the slanting is received by the sludge receiving part and sucked by the suction device and discharged. By doing so, the above-mentioned drawbacks are to be eliminated.

[0008]

Embodiments of the present invention will now be described with reference to the drawings along with the operation thereof. FIG. 1 is a basic system organization diagram of the present invention, and FIG. 2 is a specific system organization diagram of the present invention.

First, a basic embodiment of the present invention will be described with reference to FIG. 1 is a high-pressure water pump car as a high-pressure water generator, 2 is a water tank car, 3 is a multi-joint robot work vehicle as a chipping device having an injection part 4 and a sludge receiving part 5,
6 is a recycle vacuum vehicle as a suction device.

All of these are placed in the subway tunnel A and ready for fishing. Although not shown, the high-pressure water generator 1 and the suction device 6 are connected to the injection unit 4 such as the nozzle of the fishing unit 3 and the sludge receiving unit 5 by hoses, respectively, and the high-pressure water supplied from the high-pressure water generator 1 is supplied. Water is jetted from the jetting unit 4 to the inner wall, the inner wall is slid, and the sludge generated by the slatting is received by the receiving unit 5 and sucked and discharged by the suction unit 6. Here, the lift-type work vehicle 11, the power generation unit vehicle 12, and the worker passenger vehicle 13 are arranged as necessary to form a train as a whole.

In FIG. 2, a high-pressure water pump car as a high-pressure water generator, a water tank car 2 and a vacuum loader car as a suction device are arranged on the ground B, and a lifting device 3 having an injection part 3 and a sludge receiving part 5. The robot working vehicle as shown in FIG. Each of the high-pressure water generator 1 and the suction device 6, and the jetting part 4 and the sludge receiving part 5 of the hanging device 3 are connected to the ground B and the inside of the tunnel A by using the openings C, for example, ventilation holes, by the hoses 7 and 8. Connected. The high-pressure water supplied from the high-pressure water generator 1 is jetted to the inner wall from the jetting unit 4 and is slid on the inner wall to form sludge with the dust generated by the flapping, which is sucked by the suction device from the sludge receiving unit 5 and discharged. It is supposed to be done. Injection unit 4 of the harvesting device 3
Further, the sludge receiving portion 5 is formed so as to freely move up and down, forward and backward, and left and right toward the inner wall surface. This example is especially suitable when the tunnel is not too deep from the ground.

Since the high-pressure water generator 1, the suction device 6 and the slinging device 3 are constructed in this manner, the slinging work is performed as follows.

First, the injection section 4 and the receiving section 5 of the plumbing device 3 are positioned on the inner wall which requires the trimming. Water supply from the high-pressure water generator 1 is performed by a water tank car 2.

Next, the high-pressure water generated by the high-pressure water generator 1 is supplied to the injection part of the suspension device 3 via the hose 7, and is injected toward the inner wall by the injection part 4. When the high-pressure water is jetted toward the inner wall, the pressure of the high-pressure water causes the inner wall to reach a certain depth. Depending on the age of concrete,
Adjust the pressure and flow rate of high-pressure water to carry out fishing with an appropriate depth. By moving the jetting unit 4 up and down and left and right while facing the inner wall, it is possible to carry out chipping of a desired length.

Rattle occurs when the inner wall is scraped, and the scrap forms sludge together with the injected water and becomes sludge, and most of the sludge is received by the sludge receiving portion 5 of the stripping device 3 and connected. It is sucked by the suction device 6 through the hose 8 that is present.

[0016]

Since the present invention is constructed as described above,
It has the following effects. In Claims 1 and 2, since the chipping work can be mechanically carried out by the chipping device instead of the manual chipping work, a shortage of manpower can be compensated, and the chipping itself is made by jetting high-pressure water. Therefore, the dust generated by the chipping becomes sludge, and the generation of dust can be suppressed. Moreover, since the sludge can be sucked by the suction device and discharged out of the tunnel, work efficiency can be improved.

In claim 2, since the high-pressure water generator and the suction device are installed on the ground, the extreme noise generated in the tunnel due to the driving of the high-pressure water generator and the suction device can be avoided (installed in the tunnel). When driven by, the driving sound reverberates on the inner wall of the tunnel and may require additional noise countermeasures.)

[Brief description of drawings]

FIG. 1 is a basic system organization diagram of the present invention.

FIG. 2 is a specific system organization diagram of the present invention.

[Explanation of symbols]

 1 High-pressure water generator 3 Hanging device 4 Injection part 5 Sludge receiving part 6 Suction device

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yutaka Nishio 22-12 Ayase, Hasuda-shi, Saitama Prefecture (72) Inventor Masashi Kodama 1-3-18 Yoshiyoshi-cho, Soka-shi, Saitama (72) Inventor Yoichi Hattori Kasukabe, Saitama Prefecture 1309-1 Fujitsuka, Ichi

Claims (2)

[Claims] 1. High-pressure water generated by a high-pressure water generator is supplied to a chipping device, sprayed from the spraying part of the chipping device to the inner wall of the tunnel, and the inner wall is slid by the pressure of the high-pressure water and sludge generated by the slinging is removed. A method of picking up the inner wall of a tunnel, which is characterized in that it is received by a sludge receiving part, sucked by a suction device and discharged. 2. A high-pressure water generator and a suction device are installed on the ground, a stripping device is installed in a tunnel, and the high-pressure water generating device and the suction device are respectively connected to the stripping device by an opening portion that connects the ground and the inside of the tunnel. Using a hose to connect the high-pressure water generated by the high-pressure water generator to the stripping device,
A method for stripping an inner wall of a tunnel, which comprises spraying the inner wall of a tunnel from a jetting unit of a stripping device to suspend the inner wall, and receiving sludge generated by the stripping at a sludge receiving unit and sucking it out by a suction device.