阅读说明：本技术 隧道衬砌的切割方法 (Cutting method of tunnel lining ) 是由 应广生 徐浩然 汪祥国 李三林 胡先海 于 2019-11-26 设计创作，主要内容包括：本发明提供了一种隧道衬砌的切割方法,涉及土木施工技术领域,以解决传统衬砌切割过程中作业人员手持电动切割机切割衬砌具有安全风险的技术问题。该隧道衬砌的切割方法包括：安装导轨行走系统；安装切割系统,使切割系统的驱动齿轮与导轨行走系统的齿轮啮合,并将卡槽口正扣；连接液压管,使用液压管将切割系统与液压控制系统连通；切割装置作业。该隧道衬砌的切割方法保证了作业人员的安全。(The invention provides a cutting method of a tunnel lining, relates to the technical field of civil construction, and aims to solve the technical problem that an operator holds an electric cutting machine to cut a lining in a traditional lining cutting process and has safety risk. The cutting method of the tunnel lining comprises the following steps: installing a guide rail walking system; installing a cutting system, enabling a driving gear of the cutting system to be meshed with a gear of the guide rail travelling system, and enabling the slot opening to be buckled rightly; connecting a hydraulic pipe, and communicating the cutting system with a hydraulic control system by using the hydraulic pipe; and (5) operating the cutting device. The cutting method of the tunnel lining ensures the safety of operators.)

1. A method of cutting a tunnel lining, comprising:

installing a guide rail walking system;

installing a cutting system, enabling a driving gear of the cutting system to be meshed with a gear of the guide rail travelling system, and enabling the slot opening to be buckled rightly;

connecting a hydraulic pipe, and communicating the cutting system with a hydraulic control system by using the hydraulic pipe;

and (5) operating the cutting device.

2. The cutting method of a tunnel lining according to claim 1, wherein the rail traveling system is installed by selecting a straight rail and an arc rail according to a cutting loop length;

when the cutting annular length is 3m-5m, connecting the fixed base to the lining by adopting the straight guide rail; when the cutting is carried out to form a whole ring or a semi-ring, the arc-shaped guide rail is adopted and is arranged on the edge of the working frame.

3. The cutting method of a tunnel lining according to claim 2, wherein an expansion bolt is drilled at a position of the lining corresponding to the fixing base, to which the fixing base is coupled, when the straight guide rail is installed.

4. The method of cutting a tunnel lining of claim 1, wherein the cutting system is installed with a hydraulic port of the cutting system facing the hydraulic control system.

5. The cutting method of a tunnel lining according to claim 1, wherein the hydraulic pipes are connected without crossing and dead space.

6. The method of cutting a tunnel lining according to claim 1, further comprising job preparation for checking the state of each system to ensure that each system can be operated normally.

7. The method of cutting a tunnel lining of claim 6, wherein the job preparation includes inspecting gear oil of the cutting system, inspecting pipe walls of the hydraulic pipes, inspecting hydraulic oil within the hydraulic control system, and inspecting cut pieces.

8. The method of cutting a tunnel lining of claim 1 or 6, further comprising commissioning the cutting device.

9. The method of cutting a tunnel lining of claim 8, wherein commissioning the cutting device comprises: and switching on a power supply of the hydraulic control system, and starting a first control rod to observe whether the hydraulic pipe is firmly connected or not, whether oil leakage exists or not and whether the oil pressure is normal or not.

10. The method of cutting a tunnel lining of claim 9, wherein commissioning the cutting apparatus further comprises: after the indexes observed by opening the first control rod are normal, the second control rod, the third control rod and the fourth control rod are opened in turn, the rotating speed and the steering of the cutting piece are debugged, the traveling speed of the cutting system is debugged, and the cutting depth is adjusted.

Technical Field

The invention relates to the technical field of civil construction, in particular to a cutting method of a tunnel lining.

Background

After the construction of the tunnel lining is finished at present, the strength is continuously improved along with the prolonging of the setting period of concrete, but in the lining construction process, because of a series of reasons such as the insufficient thickness of lining concrete caused by immature process, the weak responsibility of field operators, the bleeding and shrinkage of concrete and the like, or because of the water seepage caused by the imperfect waterproof system, or because of the lag of design drawings, the missing burying of embedded parts and the like, partial lining is required to be dismantled and rebuilt, in the lining dismantling process, the adjacent lining concrete is not required to be dismantled and is not damaged, and the dismantling operation of edges is often required.

In the traditional lining cutting process, a working frame needs to be erected on the lining outline at first, an operator stands on the working frame to hold an electric cutting machine, and cuts along the edge of the lining, and the cutting machine is a handheld electric cutting machine, so that the operator needs to keep a cutting posture for a long time and perform overhead edge operation, and safety risks are brought to the operator.

Disclosure of Invention

The invention aims to provide a cutting method of a tunnel lining, which aims to solve the technical problem that an operator holds an electric cutting machine to cut the lining in the traditional lining cutting process, so that the safety risk is high.

In a first aspect, the present invention provides a method of cutting a tunnel lining, the method comprising:

installing a guide rail walking system;

installing a cutting system, enabling a driving gear of the cutting system to be meshed with a gear of the guide rail travelling system, and enabling the slot opening to be buckled rightly;

connecting a hydraulic pipe, and communicating the cutting system with a hydraulic control system by using the hydraulic pipe;

and (5) operating the cutting device.

With reference to the first aspect, in a first possible implementation manner of the first aspect, when the guide rail traveling system is installed, a straight guide rail and an arc guide rail are selected according to a cutting loop length;

when the cutting annular length is 3m-5m, connecting the fixed base to the lining by adopting the straight guide rail; when the cutting is carried out to form a whole ring or a semi-ring, the arc-shaped guide rail is adopted and is arranged on the edge of the working frame.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, when the straight guide rail is installed, an expansion bolt is drilled at a position, corresponding to the fixing base, of the lining, and the fixing base is connected to the expansion bolt.

With reference to the first aspect, in a third possible implementation manner of the first aspect, when the cutting system is installed, the hydraulic port of the cutting system faces the hydraulic control system.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect, when the hydraulic pipes are connected, the hydraulic pipes do not intersect and have no dead angle.

With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the method for cutting a tunnel lining further includes preparing for work, and checking a state of each system to ensure that each system can work normally.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the operation preparation includes checking gear oil of the cutting system, checking a pipe wall of the hydraulic pipe, checking hydraulic oil in the hydraulic control system, and checking a cutting blade.

With reference to the first aspect or the fifth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the cutting method of the tunnel lining further includes debugging the cutting device.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the debugging the cutting device includes: and switching on a power supply of the hydraulic control system, and starting a first control rod to observe whether the hydraulic pipe is firmly connected or not, whether oil leakage exists or not and whether the oil pressure is normal or not.

With reference to the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the debugging the cutting device further includes: after the indexes observed by opening the first control rod are normal, the second control rod, the third control rod and the fourth control rod are opened in turn, the rotating speed and the steering of the cutting piece are debugged, the traveling speed of the cutting system is debugged, and the cutting depth is adjusted.

By combining the technical scheme, the beneficial effects brought by the invention are analyzed as follows:

the invention provides a cutting method of a tunnel lining, which comprises the following steps: installing a guide rail walking system; installing a cutting system, enabling a driving gear of the cutting system to be meshed with a gear of the guide rail travelling system, and enabling the slot opening to be buckled rightly; connecting a hydraulic pipe, and communicating the cutting system with a hydraulic control system by using the hydraulic pipe; and (5) operating the cutting device. The cutting device is assembled by installing the guide rail walking system, installing the cutting system and connecting the hydraulic pipe. When the cutting device works, the cutting system cuts the lining, the driving gear of the cutting system is meshed with the gear of the guide rail system, then the driving gear of the cutting system drives the guide rail traveling system to travel, and the guide rail traveling system can drive the cutting system to travel. The guide rail walking system can control the cutting contour, an operator does not need to stand on the working frame to hold the electric cutting machine, the hydraulic control system can be far away from a dangerous operation area, the operation is directly and manually operated, the rotating speed and the cutting depth of the cutting piece are controlled, the cutting system is driven to walk on the guide rail, the cutting task is completed, and the safety of the operator is further ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a flowchart of a tunnel lining cutting method according to the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a flowchart of a tunnel lining cutting method according to an embodiment of the present invention.

The invention provides a cutting method of a tunnel lining, which comprises the following steps: installing a guide rail walking system; installing a cutting system, enabling a driving gear of the cutting system to be meshed with a gear of the guide rail travelling system, and enabling the slot opening to be buckled rightly; connecting a hydraulic pipe, and communicating the cutting system with a hydraulic control system by using the hydraulic pipe; and (5) operating the cutting device.

When installing the cutting system, it is preferable to use bolts to attach the cutting system to the rail running system. Of course, other structures such as pins, snaps, etc. may be used to attach the cutting system to the rail running system.

The cutting device for the tunnel lining cutting method comprises a guide rail walking system, a cutting system and a hydraulic control system, the three systems are mutually independent, easy to dismount and mount and convenient to transport, meanwhile, the traditional electric power is replaced by the hydraulic power, the power output can be enhanced, the diameter of a cutting blade wheel is increased from the original 10-20cm to 100cm to be replaced randomly, and the cutting depth and the cutting efficiency of the cutting device during cutting the lining can be increased.

The cutting system is provided with three groups of hydraulic pipe orifices, the cutting system is communicated with the hydraulic control system by using hydraulic pipes, each group of hydraulic pipe orifices comprises two oil ports, one of the two oil ports is an oil inlet, and the other oil port is an oil return port, and power is formed by closed circulation of hydraulic oil; the first group drives the high-speed rotating gear, the high-speed rotating gear is connected with the cutting blade, the second group drives the low-speed rotating gear, the low-speed rotating gear is used for being meshed with a gear of the guide rail walking system, and the third group provides power for adjusting the cutting depth of the cutting blade; the three groups of hydraulic nozzles can control the cutting speed, the cutting profile and the cutting depth.

The hydraulic control system is provided with three groups of hydraulic pipe orifices, three hydraulic pumps, a hydraulic oil tank and five control rods; each group of hydraulic pipe orifices comprises two oil ports, wherein one oil port is an oil inlet, and the other oil port is an oil return port; the first control rod is used for controlling the three hydraulic pumps to work simultaneously, the second control rod is used for controlling the rotating speed and the steering direction of the cutting blade, the third control rod is used for controlling the walking direction, the fourth control rod is used for adjusting the cutting depth of the cutting blade, the five control rods are matched with each other to work, and the fifth control rod is used for controlling the three hydraulic pumps to stop working simultaneously.

The cutting device is assembled by installing the guide rail walking system, installing the cutting system and connecting the hydraulic pipe. The cutting device works in such a way that the cutting system cuts the lining, the driving gear of the cutting system is meshed with the gear of the guide rail system, the driving gear of the cutting system drives the guide rail traveling system to travel, and the guide rail traveling system can drive the cutting system to travel. The guide rail walking system can control the cutting contour, an operator does not need to stand on the working frame to hold the electric cutting machine, the hydraulic control system can be far away from a dangerous operation area, the operation is directly and manually operated, the rotating speed and the cutting depth of the cutting piece are controlled, the cutting system is driven to walk on the guide rail, the cutting task is completed, and the safety of the operator is further ensured.

When the guide rail traveling system is installed, a straight guide rail and an arc guide rail are selected according to the cutting annular length; when the cutting annular length is 3m-5m, a straight guide rail is adopted to connect the fixed base to the lining; when the cutting is a whole ring or a semi-ring, an arc-shaped guide rail is adopted and is arranged on the edge of the working frame.

When the circumferential length of the cutting ring is 3m-5m, the central angle corresponding to the cut arc is smaller, the cutting can be completed by adopting the straight guide rail, and the change of the cutting depth is smaller. And, only need when adopting straight type guide rail with the unable adjustment base of straight type guide rail connect in the lining cutting of wanting, swift convenient.

When the cutting is a positive ring or a semi-ring, the cutting depth is changed greatly when the straight guide rail is adopted for cutting, and the cutting cannot be finished or the cutting effect is poor; at the moment, the arc-shaped guide rail is adopted and is arranged at the edge of the action frame, the cutting system advances along an arc line to cut the lining, the cutting depth is unchanged, and the cutting effect is better.

When the straight guide rail is installed, an expansion bolt is drilled at the position, corresponding to the fixed base, of the lining, and the fixed base is connected to the expansion bolt.

Expansion bolts's joint strength is high, is connected to the difficult not hard up in back on the lining, guarantees straight type guide rail and remains stable in cutting device working process, and then guarantees cutting device's cutting effect.