Portable Microwave Boring Device and Method for Shield Tunnel Ground Settlement Monitoring

Abstract

The present invention discloses a movable microwave drilling device and method for surface settlement monitoring in a shield tunnel section, which includes a microwave drilling device, a carrier engineering vehicle and a road environmental protection device; the microwave drilling device includes a microwave source, a circulator, a drilling machine, a microwave suppressor, a drill pipe, a directional coupler, a waveguide coaxial converter and a drill bit, wherein the directional coupler, the circulator and the microwave source are connected in sequence; the waveguide coaxial converter is installed on the drilling machine, the drill pipe is arranged through the waveguide coaxial converter, the lower end of the drill pipe is connected with the drill bit, and the upper end is connected with the directional coupler; a microwave suppressor is arranged outside the drill bit, and the microwave suppressor is fixed on the carrier engineering vehicle through a fixing device for connection with the ground. The movable microwave drilling device provided by the present invention combines a new microwave crushing technology with a traditional drilling device, and can clean and remove dust in time after drilling, which is a new drilling technology that is safe, controllable, green and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of rock and concrete drilling devices, and particularly to a movable microwave drilling device for shield tunnel surface settlement monitoring. Background Art

[0002] The construction of subway sections is a dynamic process, and there are many associated influencing factors. Strengthening the monitoring and measurement during the construction process helps to quickly feedback the information brought by the construction, so as to promptly discover problems and take corresponding measures to adjust the construction method. By monitoring the surface settlement of the shield tunnel, the construction is guided to ensure the safety of the subway tunnel construction, the foundation pit construction of the subway station, and the surrounding existing buildings (structures), and to guarantee the safety of underground pipelines and the surrounding environment.

[0003] Traditional drilling methods for surface settlement monitoring points, such as water drilling method, electric drilling method, etc., not only consume a large amount of manpower and material resources, have a slow drilling speed, frequent drill bit replacement, difficult to control the drilling quality, are prone to causing stuck holes, have low economic efficiency, but also are prone to causing secondary pollution to the environment.

[0004] The complexity of the construction site and the cumbersome inefficiency of traditional drilling methods determine that an efficient, easy-to-operate, and high energy utilization method must be adopted to drill the surface settlement monitoring points of the shield tunnel. Therefore, a movable microwave drilling device for shield tunnel surface settlement monitoring with safe controllability, low noise, and low dust is the focus of future research. Summary of the Invention

[0005] The present invention aims to solve the problems of traditional drilling methods, and proposes a movable microwave drilling device for shield tunnel surface settlement monitoring that is efficient, safe, and green, introducing microwave technology into the drilling process to improve the drilling efficiency and save costs.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions.

[0007] A movable microwave drilling device for shield tunnel surface settlement monitoring includes a microwave drilling device and a carrier engineering vehicle; the microwave drilling device is installed on the carrier engineering vehicle;

[0008] The microwave drilling device includes a microwave source, a circulator, a drilling machine, a microwave suppressor, a drill rod, a directional coupler, a waveguide coaxial converter, and a drill bit;

[0009] The waveguide coaxial converter is installed on the drilling machine, the drill rod is penetrated through the waveguide coaxial converter, the lower end of the drill rod is connected to the drill bit, and the upper end is connected to the directional coupler; the directional coupler, the circulator, and the microwave source are connected in sequence;

[0010] A microwave suppressor is provided outside the drill bit. The microwave suppressor is fixed to the engineering vehicle used for connection with the ground through a fixing device.

[0011] As a further improvement of the present invention, the engineering vehicle is further provided with a road surface environmental protection device, which includes a watering device and a cleaning device. The watering device and the cleaning device are arranged at the bottom of the engineering vehicle.

[0012] As a further improvement of the present invention, the engineering vehicle further has a cooling system, a power supply system, a control system and a water supply device. The power supply system provides electrical energy for the devices; the water supply device is connected to the watering device and the cooling system through pipelines;

[0013] The cooling system is connected to the drill bit.

[0014] As a further improvement of the present invention, the road surface environmental protection device is arranged at the bottom of the front of the engineering vehicle, and the microwave drilling equipment is arranged at the bottom of the rear of the engineering vehicle.

[0015] As a further improvement of the present invention, positioning sensors are installed on both sides of the drill bit.

[0016] As a further improvement of the present invention, the drill bit has a cylindrical barrel wall; the top of the drill bit is connected to the drill pipe through a rotating screw.

[0017] As a further improvement of the present invention, the microwave drilling equipment is fixed to the base on the engineering vehicle through a horizontal telescopic device; the horizontal telescopic device is connected to the drilling machine.

[0018] As a further improvement of the present invention, there are screw holes corresponding to bolts on both sides of the fixing device. When drilling, the microwave suppressor is fixed to the fixing device through the screw holes.

[0019] As a further improvement of the present invention, the microwave source is electrically connected to the power supply system and the control system respectively; the microwave source adopts a structure with a replaceable magnetron. It is a replaceable structure, and the type and quantity of the internal magnetron can be adjusted according to actual needs.

[0020] A mobile microwave drilling method for shield tunnel surface settlement monitoring includes the following steps:

[0021] Position the entire microwave drilling equipment at the center of the hole position of the surface settlement monitoring point;

[0022] Adjust the microwave generating device to perform microwave heating and crushing on the ground;

[0023] Perform auxiliary crushing through the drilling machine and the drill pipe;

[0024] Rapidly cool the crushed part through the cooling system to reduce its strength or directly break it;

[0025] Perform cyclic microwave heating and cooling steps until the hole positions are formed;

[0026] Use the environmental protection device mounted on the engineering vehicle to clean and remove dust from the traffic road surface.

[0027] Compared with the traditional technology, the technical solution proposed in this application has the following advantages:

[0028] The movable microwave drilling device of the present invention combines microwave technology with traditional drilling equipment, applies the heat generated by microwave radiation to increase the temperature of asphalt concrete and rock road surfaces, then sprays water to cool them, repeatedly operates to reduce their strength, and then uses a drilling machine to assist in drilling, improving the surface drilling efficiency, saving drilling costs, and achieving safe, efficient and green drilling of surface settlement monitoring points.

[0029] Preferably, in the present invention, the microwave drilling equipment, the engineering vehicle carried, and the road surface environmental protection device are integrated, reducing labor and working hours, and achieving green environmental protection drilling.

[0030] Furthermore, appropriate drill bit shapes and sizes can be selected according to different operating environments to drill surface settlement points in multiple environments.

[0031] Furthermore, the sprinkler device and the cleaning device provided by the present invention effectively reduce secondary pollution such as noise and dust during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and do not constitute an improper limitation to the present invention. In the drawings:

[0033] Figure 1 It is a schematic diagram of the overall structure of the movable microwave drilling device of the present invention;

[0034] Figure 2 It is a schematic diagram of the microwave drilling equipment of the present invention;

[0035] Figure 3 It is a schematic diagram of the drill bit structure of the present invention;

[0036] Reference numerals in the figures: 1 - drill bit, 2 - waveguide coaxial converter, 3 - directional coupler, 4 - drill pipe, 5 - fixing device, 6 - microwave suppressor, 7 - drilling machine, 8 - horizontal telescopic device, 9 - cooling system, 10 - circulator, 11 - microwave source, 12 - power supply system, 13 - control system, 14 - engineering vehicle carried, 15 - sprinkler device, 16 - cleaning device, 17 - base, 18 - water supply equipment, 19 - positioning sensor, 20 - rotating screw. DETAILED DESCRIPTION OF THE INVENTION

[0037] To enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] It should be noted that when an element is referred to as "disposed on" another element, it can be directly on the other element or there may also be another intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be another intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation manner.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] The following further elaborates on the present invention in conjunction with the accompanying drawings and examples, but it is not used as a basis for any limitation to the present invention.

[0041] As Figure 1 shown, a movable microwave drilling device for shield tunnel surface settlement monitoring in the present invention includes a microwave drilling device, a carrying engineering vehicle 14, and a road environmental protection device.

[0042] The microwave drilling device includes a microwave source 11, a circulator 10, a drilling machine 7, a microwave suppressor 6, a drill pipe 4, a directional coupler 3, a waveguide coaxial converter 2, and a drill bit 1; the microwave source 11 is electrically connected to a power supply system 12 and a control system 13 respectively.

[0043] The carrying engineering vehicle 14 is equipped with a cooling system 9, a power supply system 12, a control system 13, and a water supply device 18. The power supply system 12 provides electrical energy for the equipment; the water supply device 18 is connected to a sprinkler device 15 and the cooling system 9 through pipelines; the microwave drilling device is fixed on a base 17 through a lateral telescopic device 8 for the lateral movement of the drilling device.

[0044] The road environmental protection device includes a sprinkler device 15 and a cleaning device 16, which are used to timely handle the cleaning work of the road surface after drilling and reduce the road dust pollution.

[0045] Positioning sensors 19 are installed on both sides of the drill bit 1 of the microwave drilling equipment to perform the positioning work of the surface settlement monitoring holes.

[0046] As Figure 2 As shown in the figure, for the microwave drilling equipment of the present invention, the microwave source 11 is sequentially connected to the circulator 10, the directional coupler 3, the waveguide coaxial converter 2, and the drill bit 1; during drilling, the drill bit 1 and the microwave suppressor 6 are fixed to the carrier engineering vehicle 14 through the fixing device 5 and connected to the ground; the microwave suppressor 6 is installed outside the drill bit 1 to form a closed layer to prevent microwave leakage. The drilling machine 7 and the drill pipe 4 are combined with the microwave equipment to further break the surface concrete and rock.

[0047] The microwave drilling equipment is fixed on the base 17 through the lateral telescopic device 8 to perform the lateral movement of the drilling equipment.

[0048] As Figure 3 As shown in the figure, for the drill bit structure of the present invention, the upper part of the drill bit 1 includes a rotary screw 20; the drill bit 1 is a cylindrical barrel wall with a diameter of 100 mm and a length of 100 cm; the drill bit 1 can be conveniently installed and disassembled from the drill pipe 4 through the rotary screw 20 and can be replaced according to actual requirements.

[0049] During drilling, the drill bit 1 and the microwave suppressor 6 are fixed to the carrier engineering vehicle 14 through the fixing device 5 and connected to the ground; the microwave suppressor 6 is installed outside the drill bit 1 to form a closed layer to prevent microwave leakage.

[0050] The two sides of the fixing device 5 have screw holes corresponding to the bolts. When drilling, the microwave suppressor 6 is fixed on the fixing device 5.

[0051] As a preferred embodiment, the operating frequency of the microwave generated by the microwave source is 5.8 GHz, and the microwave power is 12 kW; the magnetron of the microwave source is a replaceable structure and can be replaced according to actual needs.

[0052] The drilling machine 7 and the drill pipe 4 are used in combination with the microwave device to improve the efficiency of the drilling equipment.

[0053] The present invention also provides a method for microwave breaking of large-diameter pile heads by the device, including the following steps:

[0054] S101: Drive the carrier engineering vehicle 14 to the position of the surface settlement monitoring point in the shield section through the positioning sensor 19, and operate the base 17 and the lateral telescopic platform 8 through the control system 13 to make the center of the drill bit correspond to the center of the settlement monitoring point, and fix the drill bit 1 and the microwave suppressor 6 through the fixing device 5 and bolts.

[0055] S102: According to different strength grades of surface concrete and rock, adjust the power source of the microwave source 11 through the control system 13 to switch the microwave power, and perform microwave crushing on the surface of the ground.

[0056] S103: Control the cooling system 9 through the control system 13 to rapidly cool the ground structure heated by microwave, reduce its strength, and then assist in crushing through the drill pipe 4.

[0057] S104: Repeat the operations in steps S102 - S103, repeatedly heating and cooling until the drilling at the monitoring point is completed.

[0058] S105: Turn off the power, remove the fixing device 5, drive the engineering vehicle 14, and operate the sprinkler device 15 and the cleaning device 16 to clean and remove dust from the road surface;

[0059] S106: Enter the next working cycle.

[0060] The movable microwave drilling device provided by the present invention combines the new microwave crushing technology with traditional drilling equipment, and can also use 5G technology to carry a positioning sensor for precise positioning. The device is convenient to move, and can clean and remove dust in time after drilling. It is a new drilling technology that is safe, controllable, green and efficient.

[0061] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of" describing a combination should include the identified elements, components, parts or steps and other elements, components, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, components, parts or steps herein also contemplates embodiments consisting essentially of these elements, components, parts or steps. By using the term "may" herein, it is intended to indicate that any attribute described as "may" included is optional.

[0062] Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step can be divided into separate multiple elements, components, parts or steps. The disclosure of "a" or "an" used to describe an element, component, part or step does not mean to exclude other elements, components, parts or steps.

[0063] It should be understood that the above description is for illustrative purposes and not for limitation. Upon reading the above description, many embodiments and many applications beyond the provided examples will be apparent to those skilled in the art. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather should be determined with reference to the full scope of the foregoing claims and the equivalents thereof. For the sake of completeness, all articles and references including patent applications and published disclosures are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the foregoing claims is not intended to abandon such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed inventive subject matter.

Claims

1. A movable microwave drilling device for shield tunnel ground settlement monitoring, characterized in that: It includes a microwave drilling device and a carrier engineering vehicle (14); the microwave drilling device is installed on the carrier engineering vehicle (14); The microwave drilling device includes a microwave source (11), a circulator (10), a drilling machine (7), a microwave suppressor (6), a drill pipe (4), a directional coupler (3), a waveguide coaxial converter (2), and a drill bit (1); The waveguide coaxial converter (2) is installed on the drilling machine (7), the drill pipe (4) is penetrated through the waveguide coaxial converter (2), the lower end of the drill pipe (4) is connected to the drill bit (1), and the upper end is connected to the directional coupler (3); the directional coupler (3), the circulator (10), and the microwave source (11) are connected in sequence; A microwave suppressor (6) is arranged outside the drill bit (1), and the microwave suppressor (6) is fixed to the carrier engineering vehicle (14) through a fixing device (5) for connection with the ground; The carrier engineering vehicle (14) is also provided with a road surface environmental protection device, and the road surface environmental protection device includes a watering device (15) and a cleaning device (16), and the watering device (15) and the cleaning device (16) are arranged at the bottom of the carrier engineering vehicle (14); The carrier engineering vehicle (14) is also equipped with a cooling system (9), a power supply system (12), a control system (13), and a water supply device (18), and the power supply system (12) provides electrical energy for the device; the water supply device (18) is connected to the watering device (15) and the cooling system (9) through pipelines; The cooling system (9) is connected to the drill bit (1); The road surface environmental protection device is arranged at the bottom of the front of the carrier engineering vehicle (14), and the microwave drilling device is arranged at the bottom of the rear of the carrier engineering vehicle (14).

2. The movable microwave drilling device for shield tunnel surface settlement monitoring according to claim 1, wherein: Position sensors (19) are installed on both sides of the drill bit (1).

3. The movable microwave drilling device for shield tunnel surface settlement monitoring according to claim 1, characterized in that: The drill bit (1) has a cylindrical barrel wall; the top of the drill bit (1) is connected to the drill pipe (4) through a rotating screw (20).

4. A movable microwave drilling device for shield tunnel surface settlement monitoring according to claim 1, characterized in that: The microwave drilling device is fixed on a base (17) on the carrier engineering vehicle (14) through a lateral telescopic device (8); the lateral telescopic device (8) is connected to the drilling machine (7).

5. The mobile microwave drilling device for shield tunnel surface settlement monitoring according to claim 1, characterized in that: There are bolt corresponding screw holes on both sides of the fixing device (5), and when drilling, the microwave suppressor (6) is fixed on the fixing device (5) through the screw holes.

6. The movable microwave drilling device for shield tunnel surface settlement monitoring according to claim 1, wherein: The microwave source (11) is electrically connected to the power supply system (12) and the control system (13) respectively; the microwave source (11) adopts a structure with a replaceable magnetron.

7. A movable microwave drilling method for shield tunnel surface settlement monitoring, according to any one of claims 1-6, a movable microwave drilling device for shield tunnel surface settlement monitoring, characterized in that, It includes the following steps: Position the entire microwave drilling device at the center of the hole position of the surface settlement monitoring point; Adjust the microwave generating device to perform microwave heating and crushing on the surface; Perform auxiliary crushing through the drilling machine and the drill pipe; Rapidly cool the crushed part through the cooling system to reduce its strength or directly break it; Cycle the microwave heating and cooling steps until the hole position is formed; Perform cleaning and dust removal work on the traffic road surface through the environmental protection device on the carrier engineering vehicle.

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