CN113774908A - Construction method of multiple-stirring pile machine capable of breaking hardness and preventing cracking - Google Patents
Construction method of multiple-stirring pile machine capable of breaking hardness and preventing cracking Download PDFInfo
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- CN113774908A CN113774908A CN202111118239.5A CN202111118239A CN113774908A CN 113774908 A CN113774908 A CN 113774908A CN 202111118239 A CN202111118239 A CN 202111118239A CN 113774908 A CN113774908 A CN 113774908A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
- E21B44/06—Automatic control of the tool feed in response to the flow or pressure of the motive fluid of the drive
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/013—Devices specially adapted for supporting measuring instruments on drill bits
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/002—Drilling with diversely driven shafts extending into the borehole
Abstract
A multiple stirring breaks the construction method of the anti-cracking pile machine of the firm, carry on the mud to stir the process hierarchically through multiple stirring modes, make the mud more homogeneous, make the post-forming have local harmful crackle, prevent the local collapse of the hole wall of the pile; the regular rectangular interface can be manufactured, so that the diameter shrinkage phenomenon of the pile-formed structure is avoided; the drilling and pile-forming process is monitored by adopting a microcomputer monitoring mode, certain intelligence and convenience are realized, and the construction safety can be ensured; the telescopic vibration hardness breaking device is installed at the top of the traditional drill bit, so that hard rock can be rapidly crushed. The invention makes the slurry more uniform, prevents local harmful cracks after the pile is formed, and prevents the local collapse of the wall of the pile hole; has certain intelligence and convenience.
Description
Technical Field
The invention relates to a pile machine in the field of bridges and buildings, in particular to a construction method of a multiple-stirring pile machine capable of breaking the hard mass and preventing cracking.
Background
The SMW process diaphragm wall was published in 1976 in Japan. The SMW construction method is that a multi-shaft type drilling and digging mixer drills and digs at a certain depth on site, cement series reinforcer is sprayed out of a drill bit to be repeatedly mixed and stirred with foundation soil, overlapping construction is adopted among construction units, then H-shaped steel or steel plates are inserted into the cement soil mixture before the cement soil mixture is hardened to form a continuous and complete seamless underground wall body with certain strength and rigidity. The pile foundation constructed by the existing SMW method has the following problems: (1) at present, the SMW (soil mixing wall) construction method pile machine for constructing the underground diaphragm wall adopts a plurality of round stirring drill bits to drill and stir side by side, and then H-shaped steel is inserted, so that the formed diaphragm wall is a continuous side by side cylinder, and serious diameter shrinkage exists between the cylinder and the cylinder; (2) when a hard soil layer is encountered, the drill bit cannot effectively break the hard rock, the drill bit slips on the surface of the hard rock with probability, and the construction pile machine inclines, so that major accidents are caused; (3) the stirring mode of the existing SMW pile machine is relatively single, a better interface cannot be formed in the stirring process, and the local collapse of the wall of a pile hole is easy to occur when the pile machine is withdrawn; (4) the existing grouting mode is single, uneven in the grouting process, stones with large diameters can still appear, the pile is not easy to form, and the pile body is easy to crack locally; (5) in the working process of the existing pile machine, the traditional measuring mode is used and the drilling process is judged by experience, so that the process is not systematic, and the safety of the drilling process cannot be monitored visually.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a construction method of a multiple stirring hardness-breaking anti-cracking pile machine, which can carry out a layered stirring procedure on slurry in multiple stirring modes, so that the slurry is more uniform, no local harmful cracks appear after pile forming, and the local collapse of the wall of a pile hole is prevented; the regular rectangular interface can be manufactured, so that the diameter shrinkage phenomenon of the pile-formed structure is avoided; the drilling and pile-forming process is monitored by adopting a microcomputer monitoring mode, certain intelligence and convenience are realized, and the construction safety can be ensured; the telescopic vibration hardness breaking device is installed at the top of the traditional drill bit, so that hard rock can be rapidly crushed.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a construction method of a multiple-stirring pile machine capable of breaking the hard mass and preventing cracking comprises the following steps:
(1) the multiple stirring, hardness breaking and cracking preventing pile machine is transported to the site, and is arranged at the position to be drilled and formed into a pile after being assembled;
(2) firstly, digging a foundation pit with the depth of 0.5m at the position of a pile to be drilled, wherein the section range of the foundation pit is larger than that of the first platform;
(3) setting the rotating speeds of the first section of drill bit pipe, the second section of drill bit pipe and the third section of drill bit pipe, setting the rotating speed of the shield drill bit, the oil pressure speed and the stretching speed of the oil pressure stretching device, and setting a threshold value sensed by the pressure sensor;
(4) trial running the multiple-stirring hardness-breaking anti-cracking pile machine, and judging whether each device is normally operated;
(5) commanding the rotation speed of the first section of drill pipe, the second section of drill pipe, the third section of drill pipe and the shield drill bit and the oil feeding and stretching of the oil pressure stretching device;
(6) a first step of drilling: firstly, a shield drill bit contacts a soil body, drilling is started, a pressure sensor continuously monitors the pressure applied to the shield drill bit, when the shield drill bit encounters a rock, the value of the pressure sensor is larger than a set threshold value, a drill bit hydraulic device is instructed to start working, a wall breaking end is jacked, and the rock is broken through the wall breaking end in a vibration mode;
(7) and entering a second step of drilling: the grouting material stirring machine transmits the slurry to the front end of a drill hole through a through structure consisting of a slurry conveying pipe, a grouting pipe, a first section of drill bit pipe, a second section of drill bit pipe and a third section of drill bit pipe, and the slurry is mixed with broken rocks to form first-step slurry;
(8) entering a third drilling step: the second step of slurry flows upwards through the air outlet slurry outlet hole, then the second step of stirring of the second section of grinding pile head blade is carried out, the blocks are further refined to form third step of slurry, in the drilling process, the electric crawler belt and the crawler belt tooth mouth of the first platform continuously move, and the flatness of the cross section is trimmed;
(9) and entering a drilling fourth step: the third step, the slurry moves to a third section of drill bit blade, and the third step of slurry is fully stirred and mixed through the third section of drill bit blade to form uniform slurry;
(10) when the hole is drilled to the designed elevation, commanding the hydraulic control system to contract the oil pressure telescopic device to enable the pile machine to move upwards, and continuously stirring the shield drill bit, the first section drill bit blade, the second section grinding pile head blade and the third section drill bit blade in the second process;
(11) when the pile driver moves upwards to the pile hole, the hydraulic control system is instructed to extend the oil pressure telescopic device, so that the pile driver moves downwards, and the shield drill bit, the first section drill bit blade, the second section grinding pile head blade and the third section drill bit blade are continuously stirred in the second process;
(12) repeating the steps (10) and (11) for 3-5 times of circulation to form uniform slurry, withdrawing the pile machine, and inserting the section steel;
(13) and (5) repeating the steps (2) to (12) for the set times to complete the pile structure system of the SMW construction method.
Further, the multiple stirring, hardness breaking and cracking preventing pile machine comprises a first platform, a bottom integral fixed platform, an upper integral fixed platform, a hydraulic control system, a signal storage, transmission and receiving device, a support frame and a grouting material stirring machine, the bottom surface of the first platform is connected with a first section of drill pipe, the first platform is positioned below the bottom integral fixed platform, the bottom surface of the bottom integral fixing platform is connected with a second section of drill pipe, the bottom integral fixing platform is positioned below the upper integral fixing platform, the bottom surface of the upper integral fixing platform is connected with a third section of drill pipe, a grouting pipe penetrates through the first platform, the bottom integral fixing platform and the upper integral fixing platform from bottom to top, the upper end of the grouting pipe is connected with an upper integral fixing platform, the hydraulic control system is positioned above the upper integral fixing platform, and the signal storage, transmission and receiving device is arranged at the top of the hydraulic control system; the hydraulic control system is fixed on the support frame through a connecting arm, the grouting material stirring machine is connected with the grouting controller on the upper integral fixing platform through the grouting pipe, the grouting controller is communicated with the upper end of the grouting pipe, and the first section of drill pipe, the second section of drill pipe and the third section of drill pipe are of a communicated structure from bottom to top.
Still further, first section drill pipe is the main part of drill bit the bottom of first section drill pipe is provided with pressure sensor and shield structure drill bit the portion of first section drill pipe sets up drill bit hydraulic means and broken wall end the outer wall of first section drill pipe is gone up to distribute has first section drill bit blade.
The first platform is provided with an electric crawler, a crawler tooth mouth, a second section of drill pipe, a second section of grinding pile head blade and an air outlet and slurry outlet hole; the electric crawler is arranged on the side surface of the first platform and can rotate around the side surface of the first platform; the crawler belt tooth openings are arranged on the electric crawler belt and used for trimming and reinforcing the edges of the sections of the pile holes; the lower end of the second section of drill pipe is communicated with the upper end of the first section of drill pipe; the second section of grinding pile head blade is spirally wound on the outer pipe wall of the second section of drill pipe; the air outlet slurry outlet hole is formed in the first platform and can be used for allowing lower slurry, stones and gas to pass through.
The bottom integral fixing platform is used for fixing the second section of drill pipe and the third section of drill pipe, the upper end of the second section of drill pipe is communicated with the lower end of the third section of drill pipe, and the third section of drill blade is spirally wound on the outer pipe wall of the third section of drill pipe;
the upper integral fixing platform is used for fixing the upper part of the third section of drill pipe, the slurry conveying controller is mounted on the upper integral fixing platform and provided with a slurry conveying port, and the slurry conveying port is used for being connected with the slurry conveying pipe.
The hydraulic control system is connected with the upper integral fixing platform and comprises an oil pressure telescopic device and a connecting arm, and the connecting arm is used for fixing the hydraulic control system on the supporting frame; and the oil pressure telescopic device is connected with the upper end of the third section of drill pipe.
The signal storage transmitting and receiving device is arranged at the top of the hydraulic control system and comprises an antenna, and the antenna is used for enhancing the capacity of the signal storage transmitting and receiving device for receiving and transmitting signals.
The invention has the following beneficial effects: the mud is subjected to the layered stirring procedure by various stirring modes, so that the mud is more uniform, local harmful cracks are not generated after the pile is formed, and the local collapse of the wall of the pile hole is prevented; the regular rectangular interface can be manufactured, so that the diameter shrinkage phenomenon of the pile-formed structure is avoided; the drilling and pile-forming process is monitored by adopting a microcomputer monitoring mode, certain intelligence and convenience are realized, and the construction safety can be ensured; the telescopic vibration hardness breaking device is installed at the top of the traditional drill bit, so that hard rock can be rapidly crushed.
Drawings
FIG. 1 is a schematic perspective view of a multiple-stirring pile machine for breaking and preventing cracking;
FIG. 2 is a schematic view of a multiple-stirring pile driver for breaking and preventing cracking in situ;
FIG. 3 is a schematic diagram of an initial front side of a multiple-stirring pile machine for breaking and preventing cracking in site excavation;
FIG. 4 is a schematic front view of a multiple-stirring pile machine for breaking the hard lumps and preventing cracking during on-site excavation;
FIG. 5 is a schematic diagram of a multiple-stirring pile machine for breaking the hard lumps and preventing cracking after on-site excavation;
FIG. 6 is a schematic diagram of a multiple-stirring pile machine for breaking the hard lumps and preventing the cracking during the lifting and stirring;
FIG. 7 is a schematic view of a multiple-stirring pile machine for breaking the hard lumps and preventing cracking after sinking and stirring;
FIG. 8 is a schematic front view of a pile forming machine with multiple stirring functions for breaking the pile and preventing cracking;
FIG. 9 is a schematic top view of a pile forming machine with multiple stirring, breaking the pile and preventing cracking;
FIG. 10 is a schematic front view of a pile head of a multiple-stirring pile driver for breaking the hard lumps and preventing cracking from encountering rocks;
FIG. 11 is a schematic view of a pile head of a multiple-stirring pile driver for breaking and preventing cracking of the pile head;
fig. 12 is a schematic diagram of a broken-solid rear front side of a pile head of a multiple-stirring pile machine for breaking solid and preventing cracking.
In the figure: the device comprises a first section of drill pipe 1, a first section of drill blade 11, a pressure sensor 12, a shield drill 13, a drill hydraulic device 14, a broken wall end 15, a first platform 2, an electric crawler belt 21, a crawler belt tooth mouth 211, a second section of drill pipe 22, a second section of grinding pile head blade 23, an air outlet and grout outlet 24, a bottom integral fixed platform 3, a third section of drill pipe 4, a third section of drill blade 41, a grouting pipe 5, an upper integral fixed platform 6, a grout controller 61, a grout outlet 611, a hydraulic control system 7, an oil pressure telescopic device 71, a connecting arm 72, a signal storage transmitting and receiving device 8, an antenna 81, a supporting frame 9, a grouting mixer 10, a grouting pipe 101, a1, a2, A3 rock and a 4.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 12, a construction method of a multiple-stirring pile machine for breaking and preventing cracking includes the following steps:
(1) the multiple stirring, hardness breaking and cracking preventing pile machine is transported to the site, and is arranged at the position to be drilled and formed into a pile after being assembled;
(2) firstly, digging a foundation pit with the depth of 0.5 at the position of a pile to be drilled, wherein the section of the foundation pit is
The range is slightly larger than that of the first platform 2, and the size can be about 0.2m long;
(3) the first section of drill pipe 1 and the second section of drill pipe are arranged through software A1 of a microcomputer monitoring control device
The rotating speed of the second section of drill bit pipe 22 and the third section of drill bit pipe 4, the rotating speed of the shield drill bit 13, the oil pressure speed and the stretching speed of the oil pressure stretching device 71 and the like are set, and a threshold value sensed by the pressure sensor 12 and the like can be set;
(4) the microcomputer monitoring control device A1 transmits signals to test the operation structure and see the operation of each device
Whether the row is normal;
(5) transmitting signal to signal storage transmitting and receiving device by microcomputer monitoring control device A1
8, commanding the rotating speed of the first section of drill pipe 1, the second section of drill pipe 22, the third section of drill pipe 4 and the shield drill 13, and oil feeding, stretching and the like of the oil pressure stretching device 71;
(6) a first step of drilling: firstly, the shield bit 13 contacts the soil body, and starts to drill holes under the pressure
The sensor 12 continuously monitors the pressure applied to the shield bit 13, when the shield bit 13 encounters a hard object, namely rock A3, the value of the pressure sensor 12 is greater than a set threshold value, the current signal of the pressure sensor 12 is transmitted to the signal storage transmitting and receiving device 8, the current signal is transmitted to the microcomputer monitoring control device A1 through the antenna 81, meanwhile, the working information is transmitted to a microcomputer monitoring control device A1 worker through the signal storage transmitting and receiving device 8 and the antenna 81 by the first section of bit pipe 1, the second section of bit pipe 22, the third section of bit pipe 4, the rotation speed of the shield bit 13 and the oil pressure telescopic device 71, the worker can judge and determine the construction progress and solve the construction problem according to the returned information, if the value of the pressure sensor 12 is greater than the set threshold value, the worker can release the signal through the microcomputer monitoring control device A to command the hydraulic bit device 14 to start working, jacking up
Breaking the wall end 15, and breaking the rock A3 by using the wall end 15 in a vibration mode; (7) and entering a second step of drilling: the grouting material mixer 10 passes through the grout pipe 101 and the grouting pipe 5
And the through structure composed of the first section of drill pipe 1, the second section of drill pipe 22 and the third section of drill pipe 4 transfers the slurry A2 to the front end of the drill hole, and the slurry A2 is mixed with the broken rock A3 or other stones to form first-step slurry, and the first-step slurry is continuously crushed under the stirring of the first section of drill bit blade 11 to become second-step slurry;
(8) entering a third drilling step: the second step of slurry A2 flows upwards through the air outlet slurry outlet hole 24, then the second step of stirring of the second section of grinding pile head blade 23 is carried out, the blocks are further refined to form third step of slurry A2, in the process of drilling, the electric track 21 and the track tooth mouth 211 of the first platform 2 continuously move, the flatness of the cross section is maintained, and the wall of the drilled hole has certain strength;
(9) and entering a drilling fourth step: the third step of moving the slurry A2 to a third section of drill bit blade 41, and fully stirring and mixing the third step of slurry by the third section of drill bit blade 41 to form more uniform slurry A2;
(10) when the hole is drilled to the designed elevation, the microcomputer monitoring control device A1 transmits a signal to instruct the hydraulic control system 7 to contract the oil pressure telescopic device 71, so that the pile machine moves upwards, and the shield drill bit 13, the first section drill bit blade 11, the second section grinding pile head blade 23 and the third section drill bit blade 41 are continuously stirred in the second process;
(11) when the pile is moved upwards to the pile hole, a microcomputer monitoring control device A1 transmits a signal to instruct a hydraulic control system 7 to grow an oil pressure telescopic device 71, so that the pile machine moves downwards, and the shield drill bit 13, the first section drill bit blade 11, the second section grinding pile head blade 23 and the third section drill bit blade 41 are continuously stirred in the second process;
(12) repeating the steps (10) and (11) for 3-5 cycles to form uniform slurry A2, withdrawing the pile machine, and inserting section steel A4;
(13) and (5) repeating the steps (2) to (12) for a plurality of times to complete the pile structure system in the SMW construction method.
The multiple-stirring hardness-breaking anti-cracking pile machine comprises a first section of drill pipe 1, a first section of drill bit blade 11, a pressure sensor 12, a shield drill bit 13, a drill bit hydraulic device 14, a wall-breaking end 15, a first platform 2, an electric crawler 21, a crawler tooth mouth 211, a second section of drill pipe 22, a second section of grinding pile head blade 23, a gas slurry outlet hole 24, a bottom integral fixing platform 3, a third section of drill pipe 4, a third section of drill bit blade 41, a grouting pipe 5, an upper integral fixing platform 6, a slurry conveying controller 61, a slurry conveying mouth 611, a hydraulic control system 7, an oil pressure telescopic device 71, a connecting arm 72, a signal storage transmitting and receiving device 8, an antenna 81, a support frame 9, a grouting mixer 10, a slurry conveying pipe 101, a microcomputer monitoring control device A1, slurry A2, rock A3 and section steel A4. The first section of drill pipe 1 is connected to the bottom surface of the first platform 2, the first platform 2 is positioned below the bottom integral fixing platform 3, the lower end of the third section of drill pipe 4 is connected to the bottom integral fixing platform 3, the upper integral fixing platform 6 is connected to the upper end of the third section of drill pipe 4, the grouting pipe 5 penetrates through the first platform 2, the bottom integral fixing platform 3 and the upper integral fixing platform 6, the upper end of the grouting pipe 5 is connected to the upper integral fixing platform 6, the hydraulic control system 7 is positioned at the top of the structure and provides downward pressure for the structure, the signal storage, transmission and receiving device 8 is arranged at the top of the hydraulic control system 7, the pile machine main body is fixed on the support frame 9 through the connecting arm 72, and the grouting mixer 10 is connected with the upper integral fixing platform 6 through the grout conveying pipe 101, the microcomputer monitoring control device A1 transmits a signal to the signal storage transmitting and receiving device 8, so as to control the operation of the pile driver. The first section of drill pipe 1, the second section of drill pipe 22 and the third section of drill pipe 4 are in a communicated structure.
Further, the first section of drill pipe 1 is a main body of a drill, the bottom of the first section of drill pipe 1 is provided with a pressure sensor 12 and a shield drill 13, a drill hydraulic device 14 and a wall breaking end head 15 are arranged inside the first section of drill pipe 1, and the outer wall of the first section of drill pipe 1 is distributed with the first section of drill blades 11.
Preferably, the pressure sensor 12 can sense the pressure between the shield drill bit 13 and the soil body to be excavated during the piling process, so as to transmit the pressure information encountered by each shield drill bit 13 to the signal storage, transmission and receiving device 8 for storage, and transmit the information to the microcomputer monitoring and control device a 1; the first section of drill bit blade 11 is preferably made of high-strength alloy steel and is spirally formed around the outer wall of the first section of drill bit tube 1; the shield drill bit 13 is made of high-strength wear-resistant alloy steel, and the end head of the shield drill bit is preferably made of a tooth mouth form and is drilled firstly during rotation; the drill bit hydraulic device 14 adopts a current signal control mode and provides telescopic power for the wall breaking end head 15;
further, the first platform 2 is used for correcting the edge of the section of the drilled hole and ensuring the smoothness of the edge, so that the phenomena of serious diameter shrinkage and local collapse of the hole wall after pile forming are avoided, and the first platform comprises an electric crawler 21, a crawler tooth mouth 211, a second section of drill pipe 22, a second section of grinding pile head blade 23 and an air outlet and slurry outlet hole 24;
preferably, the electric crawler 21 is provided on the side surface of the first platform 2 to be rotatable around the side surface of the first platform 2; the caterpillar tooth mouth 211 is arranged on the electric caterpillar 21 and used for trimming and reinforcing the edge of the section of the pile hole; the second section of drill pipe 22 and the first section of drill pipe 1 are in a communicating structure; the second section grinding pile head blade 23 is preferably made of high-strength alloy steel and is made into a spiral shape to surround the outer pipe wall of the second section drill pipe 22; the gas outlet slurry outlet hole 24 is formed in the first platform 2 and can be used for allowing slurry, stones and gas at the lower part to pass through;
furthermore, the bottom integral fixing platform 3 is used for fixing the second section of drill pipe 22 and the third section of drill pipe 4, so that all the second section of drill pipe 22 and the third section of drill pipe 4 have excellent integrity;
further, the third section of drill pipe 4 is connected between the bottom integral fixing platform 3 and the upper integral fixing platform 6, is communicated with the second section of drill pipe 22, and comprises a third section of drill bit blade 41; the third section of drill tip 41 is preferably made of high strength alloy steel and is formed in a spiral shape to surround the outer wall of the third section of drill pipe 4.
Further, the grouting pipe 5 penetrates through the bottom overall fixed platform 3, the first platform 2 and the upper overall fixed platform 6, and is connected to the grout conveying controller 61;
the upper integral fixing platform 6 is used for fixing the third section of drill pipe 4, so that all the second section of drill pipe 22 and the third section of drill pipe 4 have excellent integrity, and comprises the slurry conveying controller 61 and the slurry conveying port 611;
preferably, the slurry conveying controller 61 can be controlled by a signal emitted by the microcomputer monitoring control device A1; the slurry conveying port 611 is used for connecting the slurry conveying pipe 101.
Further, the hydraulic control system 7 is connected to the upper integral fixing platform 6 and comprises the oil pressure telescopic device 71 and a connecting arm 72; the hydraulic expansion and contraction device 71 can be expanded and contracted under the control of the microcomputer monitoring control device A1; the connecting arm 72 is used for fixing the hydraulic control system 7 on the supporting frame 9;
the signal storage transmitting and receiving device 8 is arranged at the top of the hydraulic control system, and can receive and transmit data information, such as information of the pressure sensor 12, information of the oil pressure telescopic device 71, information of the oil pressure, information of the mud flow of the slurry conveying controller 61, and information of the rotating speed of the first section of drill pipe 1, the second section of drill pipe 22 and the third section of drill pipe 4, and comprises an antenna 81; the antenna 81 is used for enhancing the capability of the signal storage transmitting and receiving device 8 to receive and transmit signals;
further, the support frame 9 is used for fixing the whole pile machine and can be fixed on a firm steel structure platform or a vehicle;
further, the grouting material mixer 10 includes a slurry conveying pipe 101, which can mix cement or other grouting materials; the cement or other grouting material can be conveyed into the grouting pipe 5 through the grouting pipe 101.
The microcomputer monitoring control device A1 can transmit signals through software to monitor and control the whole process of pile hole construction; the microcomputer monitoring control device A1 can adopt a notebook computer, a desktop computer, a mobile phone and the like;
the mud A2 is a mixture of soil, sand and stone and cement; the rock A3 is a hard object encountered during drilling; the section steel A4 can improve the stress performance of the pile.
The manufacturing method of the multiple-stirring hardness-breaking and cracking-preventing pile machine comprises the following steps:
(1) preparing a high-strength alloy steel blank;
(2) manufacturing a first section of drill pipe 1, welding a plurality of first section of drill bit blades 11 on the first section of drill pipe 1, placing a drill bit hydraulic device 14 in the end head of the first section of drill pipe 1, connecting a wall breaking end head 15 to the top end of the drill bit hydraulic device 14, and sequentially connecting a pressure sensor 12 and a shield drill bit 13 to the top end of the first section of drill pipe 1 to finish the manufacturing of the first section of drill pipe 1;
(3) manufacturing a first platform 2, and forming holes which need to pass through a first section of drill pipe 1, a second section of drill pipe 22 and a grouting pipe 5; installing a motor in the first platform 2, connecting the motor of the first platform 2 with the electric crawler 21, enabling the electric crawler 21 to rotate around the first platform 2, firmly connecting the crawler tooth mouth 211 to the electric crawler 21, and forming an air outlet and slurry outlet hole 24 on the first platform 2 to finish the manufacturing of the first platform 2 main body;
(4) manufacturing a second section of drill pipe 22, and welding a second section of grinding pile head blade 23 on the second section of drill pipe 22 to finish the manufacturing of the second section of drill pipe 22;
(5) manufacturing a bottom integral fixing platform 3, and forming holes which need to pass through a second section of drill pipe 22, a third section of drill pipe 4 and a grouting pipe 5;
(6) a third section of drill pipe 4 is manufactured, a third section of drill tip 41 is welded on the third section of drill pipe 4,
(7) manufacturing a grouting pipe 5;
(8) manufacturing an upper integral fixing platform 6, arranging a motor in the upper integral fixing platform 6, and driving a first section of drill pipe 1, a second section of drill pipe 22 and a third section of drill pipe
4, rotating;
(9) a slurry conveying controller 61 is arranged on the upper integral fixed platform 6, and the slurry conveying controller
The device 61 is provided with a pulp conveying port 611;
(10) making a hydraulic control system 7 comprising a telescopic device 71 and a connecting arm 72
The pressure control system 7 is provided with a signal storage transmitting and receiving device 8 and an antenna 81, and the microcomputer monitoring control device A1 is matched with the signal storage transmitting and receiving device 8;
(11) manufacturing a support frame 9, a grouting material stirrer 10 and a grout conveying pipe 101;
(12) installing a manufacturing hydraulic control system 7 on the upper integral fixed platform 6, and filling
The slurry mixer 10 is connected with the upper integral fixed platform 6 through the slurry conveying pipe 101 and the slurry conveying port 611, and the signal storage, transmission and receiving device 8 is communicated with the slurry conveying controller 61 and a motor in the upper integral fixed platform 6, so that signals can be transmitted; then connecting a first section of drill pipe 1 and a second section of drill pipe 22 with a first platform 2, wherein the first section of drill pipe 1 and the second section of drill pipe 22 can freely rotate around the circle center line of the self section, the first section of drill pipe 1 and the second section of drill pipe 22 are in limit closed connection, the other end of the second section of drill pipe 22 and the third section of drill pipe 4 are in through connection with a bottom integral fixing platform 3, the connectivity and the free rotation performance between the other end of the second section of drill pipe 22 and the third section of drill pipe 4 are ensured, the other end of the second section of drill pipe 22 and the third section of drill pipe 4 are in limit closed connection, the other end of the third section of drill pipe 4 is connected with an upper integral fixing platform 6 into a whole, and the other end of the third section of drill pipe 22 is required to be effectively connected with a motor in the upper integral fixing platform 6 and can rotate along with the motor; the first section of drill pipe 1 is communicated with the signal storage, transmission and receiving device 8, so that signal transmission is facilitated; the grouting pipe 5 penetrates through the first platform 2, the bottom integral fixing platform 3 and the upper integral fixing platform 6 and is effectively connected with the grout conveying controller 61.
(13) And (4) mounting the structure in the step (12) on a support frame 9 to finish the manufacture of the main body part of the equipment.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, which are intended for purposes of illustration only. The scope of the present invention should not be construed as being limited to the particular forms set forth in the examples, but rather as being defined by the claims and the equivalents thereof which can occur to those skilled in the art upon consideration of the present inventive concept.
Claims (8)
1. A construction method of a multiple-stirring pile machine capable of breaking hard objects and preventing cracking is characterized by comprising the following steps:
(1) the multiple stirring, hardness breaking and cracking preventing pile machine is transported to the site, and is arranged at the position to be drilled and formed into a pile after being assembled;
(2) firstly, digging a foundation pit with the depth of 0.5m at the position of a pile to be drilled, wherein the section range of the foundation pit is larger than that of the first platform;
(3) setting the rotating speeds of the first section of drill bit pipe, the second section of drill bit pipe and the third section of drill bit pipe, setting the rotating speed of the shield drill bit, the oil pressure speed and the stretching speed of the oil pressure stretching device, and setting a threshold value sensed by the pressure sensor;
(4) trial running the multiple-stirring hardness-breaking anti-cracking pile machine, and judging whether each device is normally operated;
(5) commanding the rotation speed of the first section of drill pipe, the second section of drill pipe, the third section of drill pipe and the shield drill bit and the oil feeding and stretching of the oil pressure stretching device;
(6) a first step of drilling: firstly, a shield drill bit contacts a soil body, drilling is started, a pressure sensor continuously monitors the pressure applied to the shield drill bit, when the shield drill bit encounters a rock, the value of the pressure sensor is larger than a set threshold value, a drill bit hydraulic device is instructed to start working, a wall breaking end is jacked, and the rock is broken through the wall breaking end in a vibration mode;
(7) and entering a second step of drilling: the grouting material stirring machine transmits the slurry to the front end of a drill hole through a through structure consisting of a slurry conveying pipe, a grouting pipe, a first section of drill bit pipe, a second section of drill bit pipe and a third section of drill bit pipe, and the slurry is mixed with broken rocks to form first-step slurry;
(8) entering a third drilling step: the second step of slurry flows upwards through the air outlet slurry outlet hole, then the second step of stirring of the second section of grinding pile head blade is carried out, the blocks are further refined to form third step of slurry, in the drilling process, the electric crawler belt and the crawler belt tooth mouth of the first platform continuously move, and the flatness of the cross section is trimmed;
(9) and entering a drilling fourth step: the third step, the slurry moves to a third section of drill bit blade, and the third step of slurry is fully stirred and mixed through the third section of drill bit blade to form uniform slurry;
(10) when the hole is drilled to the designed elevation, commanding the hydraulic control system to contract the oil pressure telescopic device to enable the pile machine to move upwards, and continuously stirring the shield drill bit, the first section drill bit blade, the second section grinding pile head blade and the third section drill bit blade in the second process;
(11) when the pile driver moves upwards to the pile hole, the hydraulic control system is instructed to extend the oil pressure telescopic device, so that the pile driver moves downwards, and the shield drill bit, the first section drill bit blade, the second section grinding pile head blade and the third section drill bit blade are continuously stirred in the second process;
(12) repeating the steps (10) and (11) for 3-5 times of circulation to form uniform slurry, withdrawing the pile machine, and inserting the section steel;
(13) and (5) repeating the steps (2) to (12) for the set times to complete the pile structure system of the SMW construction method.
2. The construction method of the multiple stirring pile driver with the functions of breaking the hard lumps and preventing the pile from cracking as claimed in claim 1, wherein the multiple stirring pile driver with the functions of breaking the hard lumps and preventing the pile from cracking comprises a first platform, a bottom integrated fixed platform, an upper integrated fixed platform, a hydraulic control system, a signal storage, transmission and reception device, a support frame and a grouting mixer, wherein the bottom surface of the first platform is connected with a first section of drill pipe, the first platform is positioned below the bottom integrated fixed platform, the bottom surface of the bottom integrated fixed platform is connected with a second section of drill pipe, the bottom integrated fixed platform is positioned below the upper integrated fixed platform, the bottom surface of the upper integrated fixed platform is connected with a third section of drill pipe, the grouting pipe penetrates through the first platform, the bottom integrated fixed platform and the upper integrated fixed platform from bottom to top, and the upper end of the grouting pipe is connected with the upper integrated fixed platform, the hydraulic control system is positioned above the upper integral fixed platform, and the signal storage, transmission and receiving device is arranged at the top of the hydraulic control system; the hydraulic control system is fixed on the support frame through a connecting arm, the grouting material stirring machine is connected with the grouting controller on the upper integral fixing platform through the grouting pipe, the grouting controller is communicated with the upper end of the grouting pipe, and the first section of drill pipe, the second section of drill pipe and the third section of drill pipe are of a communicated structure from bottom to top.
3. The construction method of the multiple stirring hard breaking and cracking preventing pile machine as claimed in claim 2, wherein the first section of drill pipe is a main body of a drill, a pressure sensor and a shield drill are arranged at the bottom of the first section of drill pipe, a drill hydraulic device and a wall breaking end are arranged at the part of the first section of drill pipe, and the first section of drill blade is distributed on the outer wall of the first section of drill pipe.
4. The construction method of the multiple-stirring pile driver with the functions of breaking the hard lumps and preventing the cracking as claimed in claim 2 or 3, wherein the first platform is provided with an electric crawler, a crawler tooth mouth, a second section of drill pipe, a second section of grinding pile head blade and a gas outlet and slurry outlet hole; the electric crawler is arranged on the side surface of the first platform and can rotate around the side surface of the first platform; the crawler belt tooth openings are arranged on the electric crawler belt and used for trimming and reinforcing the edges of the sections of the pile holes; the lower end of the second section of drill pipe is communicated with the upper end of the first section of drill pipe; the second section of grinding pile head blade is spirally wound on the outer pipe wall of the second section of drill pipe; the air outlet slurry outlet hole is formed in the first platform and can be used for allowing lower slurry, stones and gas to pass through.
5. The construction method of the multiple stirring hardness-breaking and cracking-preventing pile machine as claimed in claim 2 or 3, wherein the bottom integrated fixing platform is used for fixing the second section of drill pipe and the third section of drill pipe, the upper end of the second section of drill pipe is communicated with the lower end of the third section of drill pipe, and the third section of drill blade spirally surrounds the outer pipe wall of the third section of drill pipe.
6. The construction method of the multiple-stirring hardness-breaking and cracking-preventing pile machine as claimed in claim 2 or 3, wherein the upper integral fixing platform is used for fixing the upper part of the third section of drill pipe, the slurry conveying controller is mounted on the upper integral fixing platform, and is provided with a slurry conveying port which is used for being connected with the slurry conveying pipe.
7. The construction method of the multiple-stirring pile driver with the functions of breaking and preventing the pile from cracking as claimed in claim 2 or 3, wherein the hydraulic control system is connected with the upper integral fixed platform, the hydraulic control system comprises an oil pressure telescopic device and a connecting arm, and the connecting arm is used for fixing the hydraulic control system on the supporting frame; and the oil pressure telescopic device is connected with the upper end of the third section of drill pipe.
8. The construction method of the multiple stirring pile driver with the functions of breaking and preventing cracking as claimed in claim 2 or 3, wherein the signal storage, transmission and receiving device is arranged at the top of the hydraulic control system, the signal storage, transmission and receiving device comprises an antenna, and the antenna is used for enhancing the capability of the signal storage, transmission and receiving device for receiving and transmitting signals.
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| CN117703259A (en) * | 2024-02-04 | 2024-03-15 | 山东科技大学 | Dust-raising-prevention drilling device and method for mining |
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| CN113774908B (en) | 2022-11-08 |
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