CN109184728B

CN109184728B - Side wing-vertical combined type multi-dimensional freezing drilling and cutting method for soft and hard stratum

Info

Publication number: CN109184728B
Application number: CN201811275428.1A
Authority: CN
Inventors: 邹宝平; 高福洲; 罗战友; 刘静娟; 杨建辉; 陈永国; 陶燕丽
Original assignee: Zhejiang Lover Health Science and Technology Development Co Ltd
Current assignee: Zhejiang Lover Health Science and Technology Development Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2020-07-24
Anticipated expiration: 2038-10-30
Also published as: CN109184728A

Abstract

The invention belongs to the technical field of underground engineering rock and soil mass drilling, cutting and underground engineering disaster prevention and reduction, and provides a flank-vertical combined type multidimensional freezing drilling and cutting method for soft and hard strata; the method adopts a side wing-vertical combined drilling and cutting mode, drives the high-strength drill cutting head to longitudinally drill and cut into the stratum by controlling the telescopic arm until the longitudinal drilling and cutting are completed, respectively controls the threaded drill cutting head and the pentagonal drill cutting head to rotationally drill and cut the stratum by controlling the drill cutting head control door, drives the core drill cutting head to rotationally drill and cut into the stratum by utilizing the embedded sliding connection of the outer side of the central rotating shaft and the high-strength hollow central framework, realizes the multi-angle multi-cutter composite drilling and cutting of soft and hard stratum, avoids the problem that the deep hole drilling and cutting construction is easy to deviate in soft and hard uneven stratum such as rock soft soil and the like, and saves the construction cost; the multi-dimensional multi-zone freezing method is adopted in the stratum with water-rich hardness and hardness, the longitudinal and vertical 360-degree all-dimensional freezing of deep hole drilling and cutting construction is realized, the deep hole drilling and cutting is prevented from collapsing, the construction quality is reliable, and the construction safety is ensured.

Description

Side wing-vertical combined type multi-dimensional freezing drilling and cutting method for soft and hard stratum

Technical Field

The invention belongs to the technical field of underground engineering rock and soil mass drilling, cutting and underground engineering disaster prevention and reduction, and particularly relates to a flank-vertical combined type multidimensional freezing drilling and cutting method for soft and hard strata.

Background

The hard and soft stratum has complicated and changeable geology, is a stratum frequently encountered in the process of underground engineering construction, is also a main hazard source for causing geological disasters, particularly a water-rich and hard-uneven stratum, and is very easy to cause accidents such as ground surface settlement, pile position deviation, ground surface building collapse, shield tunnel opening and knife face changing collapse, seabed water-rich tunnel rupture and the like.

The existing drilling device for soft and hard stratum construction mainly comprises a shield cutter head with an oversized diameter, a shield scraper, a shield cutter tool, a PDC drill bit, a geophysical prospecting punching scraping drill bit and the like, the existing cutting device for soft and hard stratum construction mainly adopts rock-socketed pile air pressure control type cutting, but shield drilling devices such as the shield cutter head, the shield scraper, the shield cutter tool and the like with the oversized diameter are large in size and expensive in manufacturing cost, the hole forming diameter of the engineering investigation type drilling devices such as the PDC drill bit, the geophysical prospecting punching scraping drill bit and the like is small, the distribution angle of a blade and the distribution of cutting teeth are unreasonable, the drilling and cutting force of a cutting surface cannot change along with stratum change when the rock-socketed pile air pressure control type cutting soft and hard stratum, and the functionality. Therefore, the existing hole forming device for soft and hard stratum construction mainly adopts a single drilling device and a single cutting device, and lacks a composite drilling and cutting device which integrates the drilling and cutting functions.

Chinese patent CN106907158A is a super large diameter shield cutter head system for soft and hard uneven strata, which includes a large cutter head, a medium cutter head, a small cutter head, spokes, a panel, a hob, a cutter, a leading cutter, a central cutter, a stirring rod, a reducer, a hydraulic motor, a power transmission device, a shield and a spiral unearthing device, but the cutter head system is arranged in a way of multi-layer cutter head space staggered distribution, which is expensive in cost, when the cutter head encounters soft and hard strata for drilling construction, because the cutter head is limited to the front end of the shield to be an integral structure, the shield can only be driven by controlling various cutter heads to drill into soft and hard areas, it is difficult to effectively control the drilling cutting force of each stratum corresponding to the cutting surface during construction of soft and hard strata, and at the same time, it is also impossible to cut the hard strata in the soft and hard strata, and even.

Chinese patent CN206495679U is a shield scraper used in a stratum with uneven hardness, which comprises a cutter body, a cutting edge is provided on one side of the upper surface of the cutter body, a mounting hole is provided on the inclined plane of the upper portion of the cutter body, a hard alloy is provided on the back of the cutter body, and a wear-resistant alloy layer is provided on the cutting edge of the cutter body.

Chinese patent CN204552753U a shield machine cutter suitable for uneven soft or hard stratum, including installing a plurality of cutter combinations on the blade disc, the cutter combination includes hobbing cutter and cutting sword, the sensor is installed to the axial region of hobbing cutter, hobbing cutter rear portion fixed mounting is on the blade disc, the base that has hydraulic telescoping device is installed on the blade disc at cutting sword rear portion, the base can be along shield machine axial forward and backward movement, but this shield machine cutter is owing to be limited to shield front end blade disc and be overall structure, only can bore into the rock-soil body through control hobbing cutter and cutting sword, can not accurately adjust soft stratum, hard stratum, the drilling force of shield machine blade disc drilling face when each kind of different stratum construction such as the mutual stratum of soft or hard, and with high costs, also can not cut the hard stratum in the soft or hard stratum.

Chinese patent CN203891774U is a five-blade PDC drill bit suitable for soft and hard staggered strata, which comprises a drill bit body and five blades protruding from the crown of the drill bit body, wherein a plurality of grooves for discharging impurities are formed between the blades, the drill bit drills by adjusting the distribution angles of the blades and the distribution of the main cutting teeth on the blades, when soft and hard strata are encountered, the main cutting teeth on the blades cannot adjust the drilling force of the main cutting teeth along with the change of the strata, the uniformity of the stress of the main structure in the soft and hard strata cannot be ensured, and the drill bit cannot be used for drilling and cutting the soft and hard strata in rock and soil bodies.

Chinese patent CN106223855A is an air pressure control type rock cutting device for rock-socketed pile formations with uneven hardness, which comprises a rock cutting protective cylinder, a conical cutting tool system, a tooth-shaped cutting tool system, a vibration sensing system, an air pressure bag system, a high pressure water pipe, a multi-path connector, a vibration isolation spring, a drill rod, an air pressure controller, a vibration controller, a high pressure water pump, a cable, a strong adhesive, an air pressure flow controller, an air pressure stabilizing bolt, a rubber shock pad, a vibration isolation fastening bolt and a retention pin. The device mainly aims at the stress condition when soft and hard rock is cut, keeps constant pressure to the soft rock drilled in the air, and applies air pressure to the hard rock which is not completely cut in, but the device can not solve the problem of real-time adjustment of cutting force of cutting surfaces of different strata such as soft strata, hard strata and soft and hard interaction strata, and can not solve the problem of quick discharge of cutting scraps when the soft and hard strata are cut, particularly can not cut the hard strata, and can not keep the stress uniformity of the cutting device.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a flank-vertical combined type multidimensional freezing drilling and cutting method for a soft stratum and a hard stratum, which has the characteristics of longitudinal and axial omnibearing freezing of a water-rich stratum, long flank drilling and cutting hole, various types of drilling and cutting tools, strong capability of the tools for adapting to the stratum, uniform drilling and cutting force, low cost, high hole forming precision and high drilling and cutting speed.

The technical scheme of the invention is as follows:

a wing-vertical combined type multi-dimensional freezing drilling and cutting method for soft and hard strata comprises the following steps:

when the side wing drilling and cutting construction is required to be carried out on the water-rich soft and hard stratum:

the high-strength drill cutting head corresponding to the telescopic arm is controlled by the annular flank drilling controller to longitudinally drill and cut into the stratum until the longitudinal drilling and cutting construction is completed;

when vertical press-in drilling and cutting construction needs to be carried out:

the corresponding thread drill cutting head and the pentagonal drill cutting head are respectively controlled to drill and cut the stratum in a rotating way through a plurality of drill cutting head control doors distributed at the bottom of the wear-resistant rotating chassis, and meanwhile, the core drill cutting head is driven to drill and cut in the stratum in a rotating way by utilizing the embedded sliding connection of the outer side of the central rotating shaft and the high-strength hollow central framework;

when the soft and hard stratum extremely easily collapses in water, the freezing construction is needed for emergency disposal:

the high-strength drill cutting head is controlled to drill and extend into a preset depth longitudinally through a lateral wing drilling and cutting system, then the high-strength drill cutting head is retracted to control the stroke of the high-strength drill cutting head to be zero, and refrigerating fluid in an annular refrigerating fluid storage chamber is injected into a pretreated water-rich stratum through a refrigerating gun which controls a refrigerating switch to sequentially correspond to each other; and vertically injecting the refrigerating fluid in the annular refrigerating fluid storage chamber into a water-rich stratum at the bottom of the wear-resistant rotary chassis through the central refrigerating fluid conveying pipe.

The invention provides a flank-vertical combined type multi-dimensional freezing drilling and cutting method for soft and hard strata, which can be realized by a flank-vertical combined type multi-dimensional freezing drilling and cutting device for soft and hard strata.

The lateral wing-vertical combined type multidimensional freezing drilling and cutting device for the soft and hard stratum comprises a multi-pipe sludge discharge system, a variable drilling and cutting system, a lateral wing drilling and cutting system, a multi-pipe drainage system, a freezing system and a main support system;

the multi-pipe sludge discharge system comprises a sludge discharge pipe and a centrifugal sludge discharge machine; the variable drilling and cutting system comprises a drilling and cutting head control door, a threaded drilling and cutting head, a pentagonal drilling and cutting head and a core drilling and cutting head; the flank drilling and cutting system comprises a high-strength drilling and cutting head, a telescopic arm, an annular flank drilling controller and a drilling bin; the multi-pipe drainage system comprises a drainage pipe and an external water pumping machine; the freezing system comprises a freezing gun, a freezing switch, a central refrigerating fluid conveying pipe, an annular refrigerating fluid storage chamber, a refrigerating fluid input pipe and a freezing bin; the main support system comprises a central rotating shaft, a rotating sealing disc, a high-strength hollow central framework, a wear-resistant shell and a wear-resistant rotating chassis;

the wear-resistant rotary chassis is arranged at the bottom of the wear-resistant shell; the high-strength hollow central framework is arranged inside the wear-resistant shell; an annular refrigerating fluid storage chamber is welded at the middle upper part of the outer side wall of the high-strength hollow central framework, a refrigerating fluid input pipe is arranged at the upper part of the annular refrigerating fluid storage chamber, and the bottom of the refrigerating fluid input pipe is communicated with the top of the annular refrigerating fluid storage chamber; the bottom of the annular refrigerating fluid storage chamber is welded with an annular refrigerating bin which surrounds the outer side of the high-strength hollow central framework; a freezing gun is arranged in the freezing chamber, and the freezing gun is communicated with the annular refrigerating fluid storage chamber through a freezing switch;

the bottom of the freezing bin is welded with a drilling bin, the circular-ring-shaped flank drilling controller is embedded into the high-strength hollow central framework in a surrounding manner, and the outer side wall of the circular-ring-shaped flank drilling controller is welded with the drilling bin; meanwhile, the outer wall of the circular flank drilling controller is transversely connected with a telescopic arm, and the telescopic arm is connected with a high-strength drill cutting head;

the bottom of the drilling cabin is in sliding connection with the abrasion-resistant rotary chassis, and a plurality of drill cutting head control doors are distributed at the bottom of the abrasion-resistant rotary chassis; the thread drill cutting head and the pentagonal drill cutting head are respectively arranged in the plurality of drill cutting head control doors;

the outer side of the central rotating shaft is in embedded sliding connection with the high-strength hollow central framework, the rotary sealing disc is arranged at the middle lower part of the hollow central framework and is connected with the central refrigerating fluid conveying pipe, the upper end of the central refrigerating fluid conveying pipe is communicated with the annular refrigerating fluid storage chamber, the lower end of the central refrigerating fluid conveying pipe penetrates through the bottom of the core drill cutting head, and the core drill cutting head is installed in the center of the bottom of the wear-resistant rotary chassis;

the inside welding of stand wear and tear shell has drain pipe and mud pipe along vertical, and the drain pipe is connected with outside pump machine, and the mud pipe is connected with outside centrifugal mud discharging machine.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the invention adopts a flank-vertical combined drilling and cutting mode, controls a plurality of telescopic arms through a circular flank drilling controller, thereby driving a high-strength drill cutting head corresponding to the telescopic arms to longitudinally drill and cut into the stratum until longitudinal drilling and cutting construction is completed, simultaneously respectively controlling a corresponding threaded drill cutting head and a pentagonal drill cutting head to rotationally drill and cut the stratum through a drill cutting head control door distributed at the bottom of a wear-resistant rotating chassis, driving a core drill cutting head to rotationally drill and cut into the stratum by utilizing embedded sliding connection of the outer side of a central rotating shaft and a high-strength hollow central framework, realizing multi-angle multi-cutter composite drilling and cutting of soft and hard stratum, avoiding the problem that deep hole drilling and cutting construction is easy to deviate in soft and hard stratum such as rock soft soil and the like, and saving construction cost.

2. The invention adopts a multidimensional multi-zone freezing method in a water-rich stratum with uneven hardness, the drilling and cutting of each high-strength drill cutting head is controlled to extend into a preset depth longitudinally through a flank drilling and cutting system, then each high-strength drill cutting head is retracted to control the stroke to be zero, the freezing fluid in an annular freezing fluid storage chamber is injected into the pretreated water-rich stratum by controlling a freezing gun corresponding to a freezing switch, and the freezing fluid in the annular freezing fluid storage chamber is injected into the water-rich stratum at the bottom of an abrasion-resistant rotating chassis vertically through a central freezing fluid conveying pipe, so that the longitudinal and vertical 360-degree omnibearing freezing of deep hole drilling and cutting construction is realized, the deep hole drilling and cutting is prevented from collapsing, the construction quality is reliable, and the construction safety is ensured.

3. The invention has the characteristics of longitudinal and axial omnibearing freezing of water-rich stratum, long side wing drilling and cutting hole, various types of drilling and cutting tools, strong capability of the tools for adapting to the stratum, uniform drilling and cutting force, low cost, high hole forming precision and high drilling and cutting speed.

Drawings

FIG. 1 is a schematic sectional front view of a multi-dimensional combination wing-vertical freezing drilling and cutting device for soft and hard formation according to the present invention.

Fig. 2 is a cross-sectional view of fig. 1 rotated 22.5 counterclockwise.

Fig. 3 is a cross-sectional view of fig. 1 rotated 67.5 counterclockwise.

Fig. 4 is a bottom plan view of fig. 1.

Fig. 5 is a bottom plan view of fig. 1 in a retracted, thread cutting operation of the pentagon bit.

Fig. 6 is a bottom plan view of fig. 1 with the pentagon bit retracted and the bur bit retracted.

Fig. 7 is a top view of fig. 1 taken along line a-a'.

FIG. 8 is a top view of FIG. 1 taken along line B-B'.

FIG. 9 is a top view of FIG. 1 taken along line C-C'.

Fig. 10 is a top view of fig. 1 taken along line D-D'.

FIG. 11 is a schematic cross-sectional view of the high tensile drill bit of the present invention cutting into a subterranean formation.

FIG. 12 is a schematic cross-sectional view of the high tensile drill bit of the present invention without penetrating the formation.

FIG. 13 is a schematic cross-sectional view of the apparatus of the present invention in a multi-dimensional frozen state.

Wherein, 1 is a multi-pipe sludge discharge system, 101 is a first sludge discharge pipe, 102 is a second sludge discharge pipe, 103 is a third sludge discharge pipe, 104 is a fourth sludge discharge pipe, 105 is a centrifugal sludge discharge machine,

2 is a variable drill cutting system, 201 is a first drill cutting head control gate, 202 is a second drill cutting head control gate, 203 is a third drill cutting head control gate, 204 is a fourth drill cutting head control gate, 205 is a fifth drill cutting head control gate, 206 is a sixth drill cutting head control gate, 207 is a seventh drill cutting head control gate, 208 is an eighth cutting head control gate, 209 is a ninth drill cutting head control gate, 210 is a tenth drill cutting head control gate, 211 is an eleventh drill cutting head control gate, 212 is a twelfth drill cutting head control gate, 213 is a thirteenth drill cutting head control gate, 214 is a fourteenth drill cutting head control gate, 215 is a fifteenth drill cutting head control gate, 216 is a sixteenth drill cutting head control gate, 217 is a seventeenth drill cutting head control gate, 218 is an eighteenth drill cutting head control gate, 219 is a nineteenth drill cutting head control gate, 220 is a twentieth drill cutting head control gate, 221 is a twenty-first drill cutting head control gate, 222 is a twenty-second drill cutting head control gate, A twenty-third drill and cutter control gate 223, a twenty-fourth drill and cutter control gate 224, a twenty-fifth drill and cutter control gate 225, a twenty-sixth drill and cutter control gate 226, a twenty-seventh drill and cutter control gate 227, a twenty-eighth drill and cutter control gate 228, a twenty-ninth drill and cutter control gate 229, a thirty-fourth drill and cutter control gate 230, a thirty-fifth drill and cutter control gate 231, a thirty-eleventh drill and cutter control gate 232, a thirty-second drill and cutter control gate 232, a thirty-third drill and cutter control gate 233, a thirty-fourth drill and cutter control gate 234, a thirty-fifth drill and cutter control gate 235, a thirty-sixth drill and cutter control gate 236, a thirty-seventh drill and cutter control gate 237, a thirty-eighth drill and cutter control gate 238, a thirty-ninth drill and cutter control gate 239, a thirty-ninth drill and cutter control gate 240, a forty-fourth drill and cutter control gate 241, a forty-first drill and a forty-second drill and cutter control gate 242, A forty-third bit gate 243, a forty-fourth bit gate 244, a forty-fifth bit gate 245, a forty-sixth bit gate 246, a forty-seventh bit gate 247, a forty-eighth bit gate 248, a first screw bit 249, a second screw bit 250, a third screw bit 251, a fourth screw bit 252, a fifth screw bit 253, a sixth screw bit 254, a seventh screw bit 255, an eighth screw bit 256, a ninth screw bit 257, a tenth screw bit 258, an eleventh screw bit 259, a twelfth screw bit 260, a thirteenth screw bit 261, a fourteenth screw bit 262, a fifteenth screw bit 263, a sixteenth screw bit 264, a seventeenth screw bit 265, a seventeenth screw bit 266, an eighteenth screw bit 266, and an

eighteenth screw bit

266, 267 is a nineteenth, 268 is a twentieth, 269 is a twenty-first, 270 is a twenty-second, 271 is a twenty-third, 272 is a twenty-fourth, 273 is a first, 274 is a second, 275 is a third, 276 is a fourth, 277 is a fifth, 278 is a sixth, 279 is a seventh, 280 is an eighth, 281 is a ninth, 282 is a fifteenth, 283 is a eleventh, 284 is a twelfth, 285 is a thirteenth, 286 is a fourteenth, 287 is a fifteenth, 288, 289, 290 is a seventeenth, 290 is an eighteenth, 290, 291 a nineteenth pentagonal drill bit, 292 a twenty-fifth pentagonal drill bit, 293 a twenty-first pentagonal drill bit, 294 a twenty-second pentagonal drill bit, 295 a twenty-third pentagonal drill bit, 296 a twenty-fourth pentagonal drill bit, 297 a core drill bit,

3 is a flank drilling and cutting system, 301 is a first high-strength drilling and cutting head, 302 is a second high-strength drilling and cutting head, 303 is a third high-strength drilling and cutting head, 304 is a fourth high-strength drilling and cutting head, 305 is a fifth high-strength drilling and cutting head, 306 is a sixth high-strength drilling and cutting head, 307 is a seventh high-strength drilling and cutting head, 308 is an eighth high-strength drilling and cutting head, 309 is a first telescopic arm, 310 is a second telescopic arm, 311 is a third telescopic arm, 312 is a fourth telescopic arm, 313 is a fifth telescopic arm, 314 is a sixth telescopic arm, 315 is a seventh telescopic arm, 316 is an eighth telescopic arm, 317 is a circular flank drilling controller, 318 is a drilling cabin, 317 is a circular flank drilling cabin,

4 is a multi-pipe drainage system, 401 is a first drainage pipe, 402 is a second drainage pipe, 403 is a third drainage pipe, 404 is a fourth drainage pipe, 405 is an external water pump,

5 is a refrigeration system, 501 is a first freezing gun, 502 is a second freezing gun, 503 is a third freezing gun, 504 is a fourth freezing gun, 505 is a fifth freezing gun, 506 is a sixth freezing gun, 507 is a seventh freezing gun, 508 is an eighth freezing gun, 509 is a first freezing switch, 510 is a second freezing switch, 511 is a third freezing switch, 512 is a fourth freezing switch, 513 is a fifth freezing switch, 514 is a sixth freezing switch, 515 is a seventh freezing switch, 516 is an eighth freezing switch, 517 is a first central freezing fluid delivery pipe, 518 is a second central freezing fluid delivery pipe, 519 is a third central freezing fluid delivery pipe, 520 is a fourth central freezing fluid delivery pipe, 521 is an annular freezing fluid storage chamber, 522 is a freezing fluid input pipe, 523 is a freezing chamber,

6 is a main supporting system, 601 is a central rotating shaft, 602 is a rotating sealing disc, 603 is a high-strength hollow central framework, 604 is a wear-resistant shell, 605 is a wear-resistant rotating chassis,

7 is the stratum system, 701 is the soft soil layer, 702 is the hard soil layer, 703 is the frozen stratum.

Detailed Description

The invention will be further described with reference to the following examples, which are illustrated in the accompanying drawings.

Examples

The invention provides a flank-vertical combined type multidimensional freezing drilling and cutting method for a soft and hard stratum, which comprises the following steps:

In a preferred embodiment, as shown in fig. 1-13, the wing-vertical combined type multi-dimensional freezing drilling and cutting device for soft and hard formations comprises a multi-pipe sludge discharge system 1, a variable drilling and cutting system 2, a wing drilling and cutting system 3, a multi-pipe drainage system 4, a freezing system 5, a main support system 6 and a formation system 7.

The multi-pipe sludge discharge system 1 comprises a first sludge discharge pipe 101, a second sludge discharge pipe 102, a third sludge discharge pipe 103, a fourth sludge discharge pipe 104 and a centrifugal sludge discharge machine 105.

The variable drilling and cutting system 2 comprises a first drilling and cutting head control gate 201, a second drilling and cutting head control gate 202, a third drilling and cutting head control gate 203, a fourth drilling and cutting head control gate 204, a fifth drilling and cutting head control gate 205, a sixth drilling and cutting head control gate 206, a seventh drilling and cutting head control gate 207, an eighth cutting head control gate 208, a ninth drilling and cutting head control gate 209, a tenth drilling and cutting head control gate 210, an eleventh drilling and cutting head control gate 211, a twelfth drilling and cutting head control gate 212, a thirteenth drilling and cutting head control gate 213, a fourteenth drilling and cutting head control gate 214, a fifteenth drilling and cutting head control gate 215, a sixteenth drilling and cutting head control gate 216, a seventeenth drilling and cutting head control gate 217, an eighteenth drilling and cutting head control gate 218, a nineteenth drilling and cutting head control gate 219, a twentieth drilling and cutting head control gate 220, a twenty-first drilling and cutting head control gate 221, a twenty-second drilling and cutting head control gate 222, a twentieth drilling and cutting head control gate 223, a fourth cutting head control gate 224, Twenty-fifth drill and cutter control gate 225, twenty-sixth drill and cutter control gate 226, twenty-seventh drill and cutter control gate 227, twenty-eighth drill and cutter control gate 228, twenty-ninth drill and cutter control gate 229, thirty-sixth drill and cutter control gate 230, thirty-eleventh drill and cutter control gate 231, thirty-second drill and cutter control gate 232, thirty-third drill and cutter control gate 233, thirty-fourth drill and cutter control gate 234, thirty-fifth drill and cutter control gate 235, thirty-sixth drill and cutter control gate 236, thirty-seventh drill and cutter control gate 237, thirty-eighth drill and cutter control gate 238, thirty-ninth drill and cutter control gate 239, forty-fourth drill and cutter control gate 240, first drill and cutter control gate 241, forty-second drill and cutter control gate 242, forty-third drill and cutter control gate 243, fourth drill and forty cutter control gate 244, forty-fifth drill and cutter control gate 245, and forty-sixth drill and cutter control gate 246, A forty-seventh bit gate 247, a forty-eighth bit gate 248, a first bur bit 249, a second bur bit 250, a third bur bit 251, a fourth bur bit 252, a fifth bur bit 253, a sixth bur bit 254, a seventh bur bit 255, an eighth bur bit 256, a ninth bur bit 257, a tenth bur bit 258, an eleventh bur bit 259, a twelfth bur bit 260, a thirteenth bur bit 261, a fourteenth bur bit 262, a fifteenth bur bit 263, a sixteenth bur bit 264, a seventeenth bur bit 265, an eighteenth bur bit 266, a nineteenth bur bit 267, a twentieth bur bit 268, a twenty-first bur bit 269, a twenty-second bur bit 270, a twenty-third bur bit 271, a twenty-fourth bur bit 272, First pentagonal drill bit 273, second pentagonal drill bit 274, third pentagonal drill bit 275, fourth pentagonal drill bit 276, fifth pentagonal drill bit 277, sixth pentagonal drill bit 278, seventh pentagonal drill bit 279, eighth pentagonal drill bit 280, ninth pentagonal drill bit 281, fifteenth drill bit 282, eleventh pentagonal drill bit 283, twelfth pentagonal drill bit 284, thirteenth pentagonal drill bit 285, fourteenth pentagonal drill bit 286, fifteenth drill bit 287, sixteenth drill bit 288, seventeenth pentagonal drill bit 289, eighteenth pentagonal drill bit 290, nineteenth pentagonal drill bit 291, twenty-fifth drill bit 292, twenty-first pentagonal drill bit 293, twenty-second pentagonal drill bit 294, twenty-third drill bit 295, twenty-fourth drill bit 296, twenty-fourth drill bit 297, and eighth pentagonal drill bit 297.

The flank drilling and cutting system 3 comprises a first high-strength drilling and cutting head 301, a second high-strength drilling and cutting head 302, a third high-strength drilling and cutting head 303, a fourth high-strength drilling and cutting head 304, a fifth high-strength drilling and cutting head 305, a sixth high-strength drilling and cutting head 306, a seventh high-strength drilling and cutting head 307, an eighth high-strength drilling and cutting head 308, a first telescopic arm 309, a second telescopic arm 310, a third telescopic arm 311, a fourth telescopic arm 312, a fifth telescopic arm 313, a sixth telescopic arm 314, a seventh telescopic arm 315, an eighth telescopic arm 316, a circular flank drilling controller 317 and a drilling cabin 318.

The multi-pipe drainage system 4 includes a first drainage pipe 401, a second drainage pipe 402, a third drainage pipe 403, a fourth drainage pipe 404, and an external water pump 405.

The refrigeration system 5 comprises a first freezing gun 501, a second freezing gun 502, a third freezing gun 503, a fourth freezing gun 504, a fifth freezing gun 505, a sixth freezing gun 506, a seventh freezing gun 507, an eighth freezing gun 508, a first freezing switch 509, a second freezing switch 510, a third freezing switch 511, a fourth freezing switch 512, a fifth freezing switch 513, a sixth freezing switch 514, a seventh freezing switch 515, an eighth freezing switch 516, a first central freezing liquid delivery pipe 517, a second central freezing liquid delivery pipe 518, a third central freezing liquid delivery pipe 519, a fourth central freezing liquid delivery pipe 520, an annular freezing liquid storage chamber 521, a freezing liquid input pipe 522 and a freezing chamber 523.

The main supporting system 6 comprises a central rotating shaft 601, a rotating sealing disc 602, a high-strength hollow central skeleton 603, a wear-resistant outer shell 604 and a wear-resistant rotating chassis 605.

Furthermore, the stratum system 7 comprises a soft soil layer 701, a hard soil layer 702 and a frozen soil layer 703.

The connection principle of the device of the invention is as follows:

center pivot 601 outside and the embedded sliding connection of high-strength hollow center skeleton 603, the lower extreme at hollow center skeleton 603 is installed to rotatory sealed dish 602, rotatory sealed dish 602 respectively with first center refrigerated liquid conveyer pipe 517, second center refrigerated liquid conveyer pipe 518, third center refrigerated liquid conveyer pipe 519, the upper end of fourth center refrigerated liquid conveyer pipe 520 is connected, first center refrigerated liquid conveyer pipe 517, second center refrigerated liquid conveyer pipe 518, third center refrigerated liquid conveyer pipe 519, the lower extreme of fourth center refrigerated liquid conveyer pipe 520 runs through the bottom of deepening into core brill cutting head 297.

An annular refrigerating fluid storage chamber 521 is welded at the upper end of the outer side wall of a high-strength hollow central skeleton 603, a refrigerating fluid input pipe 522 is arranged at the upper part of the annular refrigerating fluid storage chamber 521, a refrigerating bin 523 is welded at the bottom of the annular refrigerating fluid storage chamber, the annular refrigerating fluid storage chamber 521 and the refrigerating bin 523 are sequentially welded and connected through a first refrigerating switch 509, a second refrigerating switch 510, a third refrigerating switch 511, a fourth refrigerating switch 512, a fifth refrigerating switch 513, a sixth refrigerating switch 514, a seventh refrigerating switch 515 and an eighth refrigerating switch 516 which form an angle of 45 degrees, and a first refrigerating gun 501, a second refrigerating gun 502, a third refrigerating gun 503, a fourth refrigerating gun 504, a fifth refrigerating gun 505, a sixth refrigerating gun 506, a seventh refrigerating gun 507 and an eighth refrigerating gun 508 are arranged in the refrigerating bin 523; the bottom of a first freezing switch 509 is connected with a first freezing gun 501, the bottom of a second freezing switch 510 is connected with a second freezing gun 502, the bottom of a third freezing switch 511 is connected with a third freezing gun 503, the bottom of a fourth freezing switch 512 is connected with a fourth freezing gun 504, the bottom of a fifth freezing switch 513 is connected with a fifth freezing gun 505, the bottom of a sixth freezing switch 514 is connected with a sixth freezing gun 506, the bottom of a seventh freezing switch 515 is connected with a seventh freezing gun 507, and the bottom of an eighth freezing switch 516 is connected with an eighth freezing gun 508.

The bottom of the freezing bin 523 is welded with a drilling bin 318, a circular side wing drilling controller 317 is embedded into a high-strength hollow central skeleton 603, and the outer side wall of the circular side wing drilling controller is welded with the drilling bin 318; the periphery of the outer wall of the circular wing drilling controller 317 is connected with a first telescopic arm 309, a second telescopic arm 310, a third telescopic arm 311, a fourth telescopic arm 312, a fifth telescopic arm 313, a sixth telescopic arm 314, a seventh telescopic arm 315 and an eighth telescopic arm 316 respectively; the first telescopic arm 309 is connected with the first high-strength drill cutting head 301, the second telescopic arm 310 is connected with the second high-strength drill cutting head 302, the third telescopic arm 311 is connected with the third high-strength drill cutting head 303, the fourth telescopic arm 312 is connected with the fourth high-strength drill cutting head 304, the fifth telescopic arm 313 is connected with the fifth high-strength drill cutting head 305, the sixth telescopic arm 314 is connected with the sixth high-strength drill cutting head 306, the seventh telescopic arm 315 is connected with the seventh high-strength drill cutting head 307, and the eighth telescopic arm 316 is connected with the eighth high-strength drill cutting head 308.

The bottom of the drilling cabin 318 is slidably connected with a wear-resistant rotary chassis 605, and a first drill cutting head control door 201, a second drill cutting head control door 202, a third drill cutting head control door 203, a fourth drill cutting head control door 204, a fifth drill cutting head control door 205, a sixth drill cutting head control door 206, a seventh drill cutting head control door 207, an eighth control door 208, a ninth drill cutting head control door 209, a tenth drill cutting head control door 210, an eleventh drill cutting head control door 211, a twelfth drill cutting head control door 212, a thirteenth drill cutting head control door 213, a fourteenth drill cutting head control door 214, a fifteenth drill cutting head control door 215, a sixteenth drill cutting head control door 216, a seventeenth drill cutting head control door 217, an eighteenth drill cutting head control door 218, a nineteenth drill cutting head control door 219, a twentieth drill cutting head control door 220, a twenty-first drill cutting head control door 221, a sixth drill cutting head control door 207, a sixth drill cutting head control door, a tenth drill cutting head control door 210, a drill cutting head, A twenty-second drill and cutter control gate 222, a twenty-third drill and cutter control gate 223, a twenty-fourth drill and cutter control gate 224, a twenty-fifth drill and cutter control gate 225, a twenty-sixth drill and cutter control gate 226, a twenty-seventh drill and cutter control gate 227, a twenty-eighth drill and cutter control gate 228, a twenty-ninth drill and cutter control gate 229, a thirty-fifth drill and cutter control gate 230, a thirty-eleventh drill and cutter control gate 231, a thirty-second drill and cutter control gate 232, a thirty-third drill and cutter control gate 233, a thirty-fourth drill and cutter control gate 234, a thirty-fifth drill and cutter control gate 235, a thirty-sixth drill and cutter control gate 236, a thirty-seventh drill and cutter control gate 237, a thirty-eighth drill and cutter control gate 238, a thirty-ninth drill and cutter control gate 239, a forty-fourth drill and cutter control gate 240, a forty-first drill and cutter control gate 241, a forty-second drill and cutter control gate 242, a forty-third drill and cutter control gate 238, A forty-fourth drill/cutter control gate 244, a forty-fifth drill/cutter control gate 245, a forty-sixth drill/cutter control gate 246, a forty-seventh drill/cutter control gate 247, and a forty-eighth drill/cutter control gate 248.

A first threaded drill bit 249 is disposed in first drill bit control gate 201, a second threaded drill bit 250 is disposed in second drill bit control gate 202, a third threaded drill bit 251 is disposed in third drill bit control gate 203, a fourth threaded drill bit 252 is disposed in fourth drill bit control gate 204, a fifth threaded drill bit 253 is disposed in fifth drill bit control gate 205, a sixth threaded drill bit 254 is disposed in sixth drill bit control gate 206, a seventh threaded drill bit 255 is disposed in seventh drill bit control gate 207, an eighth threaded drill bit 256 is disposed in eighth bit control gate 208, a ninth threaded drill bit 257 is disposed in ninth drill bit control gate 209, a tenth threaded drill bit 258 is disposed in tenth drill bit control gate 210, an eleventh threaded drill bit 259 is disposed in eleventh drill bit control gate 211, a twelfth threaded drill bit 260 is disposed in twelfth drill bit control gate 212, a thirteenth threaded drill bit 213 is disposed in thirteenth drill bit control gate 213, a fourteenth bur and cutter head 262 is arranged in the fourteenth bur and cutter head control gate 214, a fifteenth bur and cutter head 263 is arranged in the fifteenth bur and cutter head control gate 215, a sixteenth bur and cutter head 264 is arranged in the sixteenth bur and cutter head control gate 216, a seventeenth bur and cutter head 265 is arranged in the seventeenth bur and cutter head control gate 217, an eighteenth bur and cutter head 266 is arranged in the eighteenth bur and cutter head control gate 218, a nineteenth bur and cutter head control gate 219 is arranged in the nineteenth bur and cutter head control gate 267, a twentieth bur and cutter head control gate 268 is arranged in the twentieth bur and cutter head control gate 220, a twenty-first bur and cutter head 269 is arranged in the twenty-first bur and cutter head control gate 221, a twenty-second bur and cutter head 270 is arranged in the twenty-second bur and cutter head control gate 222, a twenty-third bur and cutter head 271 is arranged in the twentieth bur and cutter head control gate 224 is arranged in the twenty-fourth bur and, a first pentagonal drill bit 273 is disposed in the twenty-fifth drill bit control gate 225, a second pentagonal drill bit 274 is disposed in the twenty-sixth drill bit control gate 226, a third pentagonal drill bit 275 is disposed in the twenty-seventh drill bit control gate 227, a fourth pentagonal drill bit 276 is disposed in the twenty-eighth drill bit control gate 228, a fifth pentagonal drill bit 277 is disposed in the twenty-ninth drill bit control gate 229, a sixth pentagonal drill bit 278 is disposed in the thirty-third drill bit control gate 230, a seventh pentagonal drill bit 279 is disposed in the thirty-first drill bit control gate 231, an eighth pentagonal drill bit 280 is disposed in the thirty-second drill bit control gate 232, a ninth pentagonal drill bit 281 is disposed in the thirty-third drill bit control gate 233, a fifteenth drill bit 282 is disposed in the thirty-fourth drill bit control gate 234, a fifteenth drill bit 283 is disposed in the thirty-fifth drill bit control gate 235, a thirty-fifth drill bit 284 is disposed in the thirty-fifth drill bit control gate 236, a thirteenth pentagon drill bit 285 is disposed in the thirty-seventh drill bit control gate 237, a fourteenth pentagon drill bit 286 is disposed in the thirty-eighth drill bit control gate 238, a fifteenth pentagon drill bit 287 is disposed in the thirty-ninth drill bit control gate 239, a sixteenth pentagon drill bit 288 is disposed in the forty-eighth drill bit control gate 240, a seventeenth pentagon drill bit 289 is disposed in the forty-first drill bit control gate 241, an eighteenth pentagon drill bit 290 is disposed in the forty-second drill bit control gate 242, a nineteenth pentagon drill bit 291 is disposed in the forty-third drill bit control gate 243, a twenty-fifth drill bit 292 is disposed in the forty-fourth drill bit control gate 244, a twenty-first pentagon drill bit 293 is disposed in the forty-fifth drill bit control gate 245, a twenty-fifth drill bit 294 is disposed in the forty-sixth drill bit control gate 246, a twenty-fifth drill bit 247 is disposed in the forty-fifth drill bit control gate 295, a forty-eighth drill bit control gate 248 houses a twenty-fourth pentagonal drill bit 296.

The first drainage pipe 401, the second drainage pipe 402, the third drainage pipe 403, the fourth drainage pipe 404, the first sludge discharge pipe 101, the second sludge discharge pipe 102, the third sludge discharge pipe 103, and the fourth sludge discharge pipe 104 are all welded around the wear-resistant outer shell 604.

The working principle of the device is as follows:

when the device is in a water-rich soft and hard stratum and needs flank drilling and cutting construction, the expansion and contraction of eight telescopic arms such as a first telescopic arm 309, a second telescopic arm 310, a third telescopic arm 311, a fourth telescopic arm 312, a fifth telescopic arm 313, a sixth telescopic arm 314, a seventh telescopic arm 315 and an eighth telescopic arm 316 are controlled by a circular flank drilling controller 317, so that a first high-strength drill cutting head 301, a second high-strength drill cutting head 302, a third high-strength drill cutting head 303, a fourth high-strength drill cutting head 304, a fifth high-strength drill cutting head 305, a sixth high-strength drill cutting head 306, a seventh high-strength drill cutting head 307 and an eighth high-strength drill cutting head 308 corresponding to the eight telescopic arms are driven to longitudinally drill and cut into the stratum until the longitudinal drilling and cutting construction is completed; when vertical press-in drilling and cutting construction is required, a plurality of corresponding threaded drill cutting heads and pentagonal drill cutting heads are respectively controlled to drill and cut the stratum in a rotating manner through forty-eight drill cutting head control doors arranged at the bottom of the wear-resistant rotating chassis 605, and meanwhile, the core drill cutting head 297 is driven to rotate, drill and cut into the stratum by utilizing the embedded sliding connection between the outer side of the central rotating shaft 601 and the high-strength hollow central framework 603.

When the device is extremely easy to collapse in a water-rich soft and hard stratum and needs to be subjected to freezing construction for emergency treatment, the high-strength drill cutting heads are controlled to longitudinally extend into a preset depth through the flank drilling and cutting system, then the high-strength drill cutting heads are retracted to control the stroke to be zero, and freezing liquid in the annular freezing liquid storage chamber is injected into the pretreated water-rich stratum through controlling a plurality of freezing guns which sequentially correspond to the freezing switches; refrigerating fluid in the annular refrigerating fluid storage chamber 521 is injected into a water-rich stratum at the bottom of the wear-resistant rotary chassis 605 through a first central refrigerating fluid conveying pipe 517, a second central refrigerating fluid conveying pipe 518, a third central refrigerating fluid conveying pipe 519 and a fourth central refrigerating fluid conveying pipe 520 in sequence in a vertical direction.

A first sludge discharge pipe 101, a second sludge discharge pipe 102, a third sludge discharge pipe 103 and a fourth sludge discharge pipe 104 in the multi-pipe sludge discharge system 1 are all connected with an external centrifugal sludge discharge machine 105 through bolts, wherein the sludge discharge pipes are made of high-strength wear-resistant stainless steel materials, so that smooth sludge discharge is ensured; the centrifugal mud extractor 105 has the advantage of efficiently discharging the mud from the rock debris in the hole.

The core cutting head 297 in the variable drill system 2 seats the bottom center of the wear resistant rotating chassis 605. The drilling and cutting head control door is made of stainless steel, has extremely strong sealing performance, and has the functions of controlling the drilling and cutting head to lift and switching the cutter head; the thread drill bit is made of high-strength alloy and has extremely strong capability of breaking rocks; the pentagon drill bit is made of high-strength alloy and has extremely strong ground breaking capacity; the core drill cutting head is made of high-strength alloy, and has extremely high strength and corrosion resistance.

The circular side wing drilling device in the side wing drilling and cutting system 3 is used for processing and sending instructions, and has the advantages of sensitive response and interference resistance; the drilling cabin is made of stainless steel materials, and has the advantages of corrosion resistance and good stability; the telescopic arm is made of high-strength alloy and has the advantages of free telescopic and high strength; the high-strength drill cutting head is made of high-strength alloy and has the advantage of quickly drilling and cutting soft and hard rock-soil bodies.

First drain pipe 401, second drain pipe 402, third drain pipe 403, fourth drain pipe 404 all with outside pump 405 bolted connection in multitube drainage system 4, the shell is made by alloy material to the drain pipe, and the inner bag is made to flexible material, has the advantage that intensity is high, the water delivery is fast, outside pump water ability in a large amount of pumping holes water source, ponding in the discharge hole fast.

The annular refrigerating fluid storage chamber in the refrigerating system 5 is a shell made of high-strength alloy, and an inner container made of anti-freezing heat-insulating material has excellent safety, heat-insulating property and storability; the freezing fluid input pipe is made of high-strength alloy into a shell, and the freezing-resistant heat-insulating material is made into an inner container, so that the freezing fluid input pipe has the advantages of high conveying speed and safety; the freezing switch independently controls the freezing state and has the characteristic of independently processing information; the freezing gun is made of a shell made of high-strength alloy, and an inner container made of an anti-freezing heat-insulating material plays a role in launching freezing liquid to the hole; the freezing bin is made of high-strength anti-freezing alloy, and is safe, anti-freezing and corrosion-resistant.

The central rotating shaft in the main supporting system 6 is made of high-strength alloy and plays a role in power transmission; the high-strength hollow central framework is made of high-strength alloy and plays a role in internal protection; the rotary sealing disc is made of sealing materials and alloy, and has the advantages of strong sealing performance, strong frost resistance and strong strength; the lower wear-resistant shell is made of high-strength alloy and anti-freezing material, and is corrosion-resistant, wear-resistant and extremely cold-resistant.

The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. A wing-vertical combined type multi-dimensional freezing drilling and cutting method for soft and hard strata is characterized by comprising the following steps:

side wing-vertical combined type multi-dimensional freezing drilling and cutting device for soft and hard stratum

The device comprises a multi-pipe sludge discharge system 1, a variable drilling and cutting system 2, a flank drilling and cutting system 3, a multi-pipe drainage system 4, a refrigeration system 5, a main support system 6 and a stratum system 7;

the multi-pipe sludge discharge system 1 comprises a first sludge discharge pipe 101, a second sludge discharge pipe 102, a third sludge discharge pipe 103, a fourth sludge discharge pipe 104 and a centrifugal sludge discharge machine 105;

the variable drilling and cutting system 2 comprises a first drilling and cutting head control gate 201, a second drilling and cutting head control gate 202, a third drilling and cutting head control gate 203, a fourth drilling and cutting head control gate 204, a fifth drilling and cutting head control gate 205, a sixth drilling and cutting head control gate 206, a seventh drilling and cutting head control gate 207, an eighth cutting head control gate 208, a ninth drilling and cutting head control gate 209, a tenth drilling and cutting head control gate 210, an eleventh drilling and cutting head control gate 211, a twelfth drilling and cutting head control gate 212, a thirteenth drilling and cutting head control gate 213, a fourteenth drilling and cutting head control gate 214, a fifteenth drilling and cutting head control gate 215, a sixteenth drilling and cutting head control gate 216, a seventeenth drilling and cutting head control gate 217, an eighteenth drilling and cutting head control gate 218, a nineteenth drilling and cutting head control gate 219, a twentieth drilling and cutting head control gate 220, a twenty-first drilling and cutting head control gate 221, a twenty-second drilling and cutting head control gate 222, a twentieth drilling and cutting head control gate 223, a fourth cutting head control gate 224, Twenty-fifth drill and cutter control gate 225, twenty-sixth drill and cutter control gate 226, twenty-seventh drill and cutter control gate 227, twenty-eighth drill and cutter control gate 228, twenty-ninth drill and cutter control gate 229, thirty-sixth drill and cutter control gate 230, thirty-eleventh drill and cutter control gate 231, thirty-second drill and cutter control gate 232, thirty-third drill and cutter control gate 233, thirty-fourth drill and cutter control gate 234, thirty-fifth drill and cutter control gate 235, thirty-sixth drill and cutter control gate 236, thirty-seventh drill and cutter control gate 237, thirty-eighth drill and cutter control gate 238, thirty-ninth drill and cutter control gate 239, forty-fourth drill and cutter control gate 240, first drill and cutter control gate 241, forty-second drill and cutter control gate 242, forty-third drill and cutter control gate 243, fourth drill and forty cutter control gate 244, forty-fifth drill and cutter control gate 245, and forty-sixth drill and cutter control gate 246, A forty-seventh bit gate 247, a forty-eighth bit gate 248, a first bur bit 249, a second bur bit 250, a third bur bit 251, a fourth bur bit 252, a fifth bur bit 253, a sixth bur bit 254, a seventh bur bit 255, an eighth bur bit 256, a ninth bur bit 257, a tenth bur bit 258, an eleventh bur bit 259, a twelfth bur bit 260, a thirteenth bur bit 261, a fourteenth bur bit 262, a fifteenth bur bit 263, a sixteenth bur bit 264, a seventeenth bur bit 265, an eighteenth bur bit 266, a nineteenth bur bit 267, a twentieth bur bit 268, a twenty-first bur bit 269, a twenty-second bur bit 270, a twenty-third bur bit 271, a twenty-fourth bur bit 272, First pentagonal drill bit 273, second pentagonal drill bit 274, third pentagonal drill bit 275, fourth pentagonal drill bit 276, fifth pentagonal drill bit 277, sixth pentagonal drill bit 278, seventh pentagonal drill bit 279, eighth pentagonal drill bit 280, ninth pentagonal drill bit 281, fifteenth drill bit 282, eleventh pentagonal drill bit 283, twelfth pentagonal drill bit 284, thirteenth pentagonal drill bit 285, fourteenth pentagonal drill bit 286, fifteenth drill bit 287, sixteenth drill bit 288, seventeenth pentagonal drill bit 289, eighteenth pentagonal drill bit 290, nineteenth pentagonal drill bit 291, twenty-fifth drill bit 292, twenty-first pentagonal drill bit 293, twenty-second pentagonal drill bit 294, twenty-third drill bit 295, twenty-fourth drill bit 296, twenty-fourth drill bit 297, and eighth pentagonal drill bit 297;

the flank drilling and cutting system 3 comprises a first high-strength drilling and cutting head 301, a second high-strength drilling and cutting head 302, a third high-strength drilling and cutting head 303, a fourth high-strength drilling and cutting head 304, a fifth high-strength drilling and cutting head 305, a sixth high-strength drilling and cutting head 306, a seventh high-strength drilling and cutting head 307, an eighth high-strength drilling and cutting head 308, a first telescopic arm 309, a second telescopic arm 310, a third telescopic arm 311, a fourth telescopic arm 312, a fifth telescopic arm 313, a sixth telescopic arm 314, a seventh telescopic arm 315, an eighth telescopic arm 316, a circular flank drilling controller 317 and a drilling cabin 318;

a multi-pipe drainage system 4 including a first drainage pipe 401, a second drainage pipe 402, a third drainage pipe 403, a fourth drainage pipe 404, and an external water pump 405;

the refrigeration system 5 comprises a first freezing gun 501, a second freezing gun 502, a third freezing gun 503, a fourth freezing gun 504, a fifth freezing gun 505, a sixth freezing gun 506, a seventh freezing gun 507, an eighth freezing gun 508, a first freezing switch 509, a second freezing switch 510, a third freezing switch 511, a fourth freezing switch 512, a fifth freezing switch 513, a sixth freezing switch 514, a seventh freezing switch 515, an eighth freezing switch 516, a first central refrigerating fluid delivery pipe 517, a second central refrigerating fluid delivery pipe 518, a third central refrigerating fluid delivery pipe 519, a fourth central refrigerating fluid delivery pipe 520, an annular refrigerating fluid storage chamber 521, a refrigerating fluid input pipe 522 and a freezing chamber 523;

the main support system 6 comprises a central rotating shaft 601, a rotating sealing disc 602, a high-strength hollow central skeleton 603, a wear-resistant shell 604 and a wear-resistant rotating chassis 605;

second, drill and cut