CN101737012A - Drilling bit for guiding horizontal roatatably-jetting construction and construction method thereof - Google Patents
Drilling bit for guiding horizontal roatatably-jetting construction and construction method thereof Download PDFInfo
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- CN101737012A CN101737012A CN200910311455A CN200910311455A CN101737012A CN 101737012 A CN101737012 A CN 101737012A CN 200910311455 A CN200910311455 A CN 200910311455A CN 200910311455 A CN200910311455 A CN 200910311455A CN 101737012 A CN101737012 A CN 101737012A
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Abstract
The invention discloses a drilling bit for guiding horizontal rotatably-jetting construction and a construction method thereof. The drilling bit comprises a drilling bit main body and a wedged plate which is fixedly connected to the head of the drilling bit main body; the side wall of the drilling bit main body is also provided with a groove; a probe is embedded in the groove and provided with a wireless transmitter; a signal transmitted by the wireless transmitter is acquired by a wireless data acquiring instrument which is in signal connection with a displayer through a high-frequency wireless transmitting module and an antenna; and the wireless data acquiring instrument is connected with the INTERNET through GPRS (Global Position System). The invention can determine the driving direction of the drilling bit and the concrete position of a spraying nozzle, can change the drilling direction, automatically rectify a deviation and carry out long-distance operation on a horizontal rotatably-jetting pile with high precision if necessary, can additionally jet in a specific direction according to the direction and ensure the safe construction of tunnels or other underground projects.
Description
Technical field
The present invention relates to drill bit and rotary-spraying construction method thereof that a kind of rotary-spraying construction is used.
Background technology
Horizontal jet grouting is a kind of novel rock-reinforcing technology that occurs in recent years, be that horizontal jet grouting is exactly a horizontal drilling and forming hole in the stratum by vertical churning development, or low-anglely bow, face upward and tiltedly creep into outward, it is closely horizontal that Grouting Pipe is, and nozzle carries out churning, slip casting from inside to outside.The formed horizontal consolidation body of horizontal jet grouting can well be strengthened the rigidity of structure, the supporting top soil body, and have the performance of certain antiseepage water proof, have more wide utilization prospect.But horizontal jet grouting is when carrying out drilling construction in the past, need first pore-forming and then carry out churning, and drilling depth has only tens meters, so caused cost of production height, inefficient shortcoming.
In addition, horizontal jet grouting limits to because of technology as soil body transformation of the place ahead, tunnel or advanced support method, and stake footpath is less relatively, and stake is long shorter, and general stake is long all in 18 meters, in the long interlock that is difficult to realize adjacent pile body when big of stake.And long shorter because of stake, need a plurality of circulations constructions, caused cost of production height, inefficient shortcoming, this is a very big restriction to the extensive use of horizontal jet grouting under the low situation of mechanization degree.
Summary of the invention
The drill bit and the job practices thereof that the purpose of this invention is to provide a kind of guiding horizontal rotary-spraying construction will solve traditional horizontal rotary-spraying construction cost of production height, low, the difficult technical problem of monitoring guiding of production efficiency; And the guiding that solves drill bit is crept into, the problem of automatic deviation correction and assurance tunnel or other underground construction safe construction.
For achieving the above object, the present invention adopts following technical scheme:
A kind of drill bit of guiding horizontal rotary-spraying construction, comprise drill main body and the wedge that is fixedly connected on the drill main body head, in drill main body, be furnished with water under high pressure passage and high mud jacking passage vertically, the water under high pressure channel side is to having water spout, high mud jacking channel side is characterized in that to having the whitewashing mouth:
Also have a groove on the described drill main body sidewall, the intrinsic probe of edge in the groove, this probe has wireless launcher, and the signal of this wireless launcher emission is gathered by the data acquisition instrument, the data acquisition instrument is connected with monitor signal by high frequency wireless transmitter module, antenna again, the data acquisition instrument also is connected with INTERNET by GPRS, realizes the construction remote monitoring.
A kind of job practices of using the drill bit of above-mentioned guiding horizontal rotary-spraying construction is characterized in that step is as follows:
Step 2, the drill bit of guiding horizontal rotary-spraying construction is connected with drilling rod, drilling rod is connected with the horizontal directional drilling machine unit head, mud tank is connected with water feeder on the horizontal directional drilling machine unit head by slush pump, adjust rig position, good hole;
Step 3, the pre-guide hole construction of horizontal jet grouting stake, promptly open slush pump, will the mud in mud tank transfer to high mud jacking passage and whitewashing mouth and ejection in the drill bit of guiding horizontal rotary-spraying construction, begin simultaneously to creep into, probe is constantly to display transmission drill bit direction and attitude and hole internal pressure simultaneously, and the tractor driver constantly adjusts the drill bit direction of guiding horizontal rotary-spraying construction according to the information that display shows, guarantee that drilling direction and planned course coincide, until drilling to completion;
Step 5, begin to retreat drilling rod, dual pipe churning simultaneously, promptly open cement slurrypump and high-pressure hydraulic pump, will the cement grout in slurry storing tank transfer to high mud jacking passage and whitewashing mouth and ejection in the drill bit of guiding horizontal rotary-spraying construction, water in the scuttlebutt is transported to the water under high pressure passage of drill bit and the water spout and the ejection of guiding horizontal rotary-spraying construction, formed the water under high pressure cutting soil and mixes the formation rotary churning pile with the soil body after the cutting;
Step 6, when water spout during apart from 0.5～3 meter on face, close high-pressure hydraulic pump, stop water spray, when whitewashing mouth during, close cement slurrypump apart from 0.5～3 meter on face, stop whitewashing;
Step 7, drilling rod all withdraw from, sealing of hole immediately then, and single jet grouting pile construction finishes.
Optimized technical scheme: described probe external surface is with sebific duct, and sebific duct is fastenedly connected by pipe collar and probe.
Be arranged with battery compartment in the described probe, probe CPU, wireless launcher, survey the temperature pick up of temperature of diamond bit, survey the tool angle sensor of drill bit position of rotation, survey the obliquity sensor at drill bit inclination angle and the pressure sensor of detection drill bit circumferential pressure, battery in the battery compartment and the power supply interface of probe CPU, the tool angle sensor, temperature pick up, obliquity sensor is connected with pressure sensor, temperature pick up, the tool angle sensor, the data wire of obliquity sensor and pressure sensor is connected with data input pin of probe CPU respectively, data output end of probe CPU is connected with wireless launcher again, and the signal that wireless launcher was handled probe CPU sends to the data acquisition instrument.
Described data acquisition instrument comprises battery, wireless receiving module, high frequency wireless transmitter module, GPRS and CPU, wherein wireless receiving module is by receiving the signal that wireless launcher sends, and signal passed to CPU, CPU is passed to the high frequency wireless transmitter module again after signal is handled, the high frequency wireless transmitter module sends to display by antenna with signal, CPU is handled the back packing with signal and is also sent GPRS to, can monitor construction anywhere by INTERNET and now establish working condition.
Described data acquisition instrument also is connected with the operating desk signal by high frequency wireless transmit or GPRS, and the signal that central processing unit for processing is crossed is uploaded to operating desk.
Described drilling rod can be dual pipe bit tool, and the water feeder on the described horizontal directional drilling machine unit head can be high-pressure water tap.
In the above-mentioned steps five, before the indication of the pressure meter of cement slurrypump and high-pressure hydraulic pump was lower than design pressure, the drill bit original place rotation of guiding horizontal rotary-spraying construction after the pressure meter indication for the treatment of cement slurrypump and high-pressure hydraulic pump reaches design pressure, began to retreat drilling rod.
In the above-mentioned steps five, after the pressure meter indication of cement slurrypump and high-pressure hydraulic pump reached design pressure, drilling rod at the uniform velocity rotated, and at the uniform velocity retreats.
Above-mentioned probe can be divided into three sections, in one section as battery compartment, its end connects the battery compartment lid, battery in the battery compartment is connected with the battery wiring board by circuit, the battery wiring board is fixed in the probe stage casing with epoxy resin, in another section of probe locating slot is arranged, and be mounted with sensor, realize being connected by the screw thread screw thread between three sections.
Compared with prior art the present invention has following characteristics and beneficial effect:
The present invention relates to a kind of drill bit apparatus that the guiding horizontal rotary-spraying construction is used; be mainly used in the guiding horizontal rotary-spraying construction; construction technology mainly is to solve at soft stratum (particularly rich water soft stratum; as mud, soil, sand, completely decomposed, backfill, zone of fracture, landslide accumulation body etc.) problem of high level of accuracy churning pore-forming in the supporting construction; and the high quality level induration of solution protection arch, tunnel or periphery formation sealing; the supporting top soil body plays impermeable arch shell protective effect.
The present invention mainly solves at soft stratum (particularly rich water soft stratum, as mud, soil, sand, completely decomposed, backfill, zone of fracture, landslide accumulation body etc.) during supporting construction, in the arch, tunnel or periphery form the ring-type high strength curtain body of sealing, the supporting top soil body, play effects such as impermeable, anti-deformation, anti-drift sand, guarantee the safe construction of tunnel or other underground construction.
The technical solution adopted in the present invention is special guide-localization sensor to be installed in order to determine the particular location that sets direction and nozzle of drill bit at drill bit internal, enable to change where necessary drilling direction, apply the horizontal jet grouting stake to high accuracy, long distance, and can add spray at specific direction as required.
Drill bit internal is made up of probe, water under high pressure passage, water spout, high pressure (or low pressure) cement paste passage, high pressure (or low pressure) cement paste nozzle and six parts of wedge, water under high pressure by being installed in drill bit internal and the dual nozzle on the water under high pressure mud passage, utilize high pressure slurry pump to make water and cement paste, in the soil body, form the column induration from nozzle mesohigh or low pressure ejection.And effectively control the quality that this kind drill bit sets, the guide-localization sensor is installed exactly in order to determine the particular location that sets direction and nozzle of drill bit at the drill bit position, enable to change where necessary drilling direction, thereby apply the horizontal jet grouting stake with reaching high accuracy, long distance.Mainly can be used for aspects such as the construction of engineerings such as tunnel, mine working, civil air defense constructions and installations, ground stabilization, ground anchorage and specially treated.
Drill bit among the present invention also has following beneficial effect:
(1) drill bit adopts package assembly, is convenient to change and clean.
(2) between the shower nozzle of drilling tool and the drill bit sensor is installed, can detects the drill bit azimuth, multiple parameters such as inclination angle and tool angle.
(3) drilling tool bonding strength height, good seal performance.Really reached and bored the spray one.
(5) effectively combine between shower nozzle and the drill bit, drill bit and wireless type sensor, the signal transmission is reliable, and transmitting range is long.
(5) construction creeps into precision height, distance.
(6) cost is low, production efficiency is high.
Job practices among the present invention also has following beneficial effect:
(1) realizes that high accuracy, long distance apply the horizontal jet grouting stake;
(2) fast rapid-result arch, impermeable, soil body improvement reach stagnant water effect and pay protective function in advance;
(3) can add local surrounding rock consolidation and soil body improvement such as spray, fixed spray to privileged site according to strata condition;
(4) cost is low, efficient is high, effective, safe and reliable.
(5) guarantee the interlock of adjacent pile body, in the Fu Shui stratum, reach stagnant water effect.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the drill bit of guiding horizontal rotary-spraying construction.
Fig. 2 is the schematic diagram that the drill bit of guiding horizontal rotary-spraying construction is connected with high-pressure water tap.
Fig. 3 provides the guiding horizontal rotary-spraying construction schematic representation of apparatus of mud.
Fig. 4 provides the guiding horizontal rotary-spraying construction schematic representation of apparatus of cement paste.
Fig. 5 provides the guiding horizontal rotary-spraying construction schematic representation of apparatus of clear water.
Fig. 6 is the principle schematic of probe.
Fig. 7 is the schematic diagram of annexation between probe, data acquisition instrument, display, the horizontal directional drilling machine.
Fig. 8 is the schematic diagram that probe is connected with drill main body.
Fig. 9 is the structural representation of probe embodiment.
Reference numeral: 1-probe, 2-water under high pressure passage, 3-water spout, the high mud jacking passage of 4-, 5-whitewashing mouth, 6-wedge, 7-high-pressure water tap, the dual pipe bit tool of 8-;
9-mud efferent duct, the defeated mud tube of 10-, 11-mud tank, 12-slush pump;
13-pulp-absorbing pipe, 14-pump for mortar transmission, 15-filter screen, 16-slurry storing tank, 17-feed pipe for mortar, 18-stir slurry tube, 19-cement slurrypump, 20-cement paste efferent duct, 21-threeway, 22-valve;
23-scuttlebutt, 24-high-pressure hydraulic pump, 25-water under high pressure efferent duct, 26-suction water pipe;
27-pipe collar, 28-sebific duct, 29-drill main body, 30-groove, 31-battery compartment lid, 32-battery compartment, 33-epoxy resin, 34-battery wiring board, 35-pressure sensor, 36-temperature pick up, 37-locating slot.
The specific embodiment
Embodiment is referring to Fig. 1, shown in Figure 2, the drill bit of this guiding horizontal rotary-spraying construction, comprise drill main body 29 and the wedge 6 that is fixedly connected on the drill main body head, in drill main body, be furnished with water under high pressure passage 2 and high mud jacking passage 4 vertically, water under high pressure passage 2 side direction have water spout 3, high mud jacking passage 4 side direction have whitewashing mouth 5, also have a groove 30 on the described drill main body sidewall, the intrinsic probe 1 of edge in the groove, referring to Fig. 8, probe 1 external surface is with sebific duct 28, and sebific duct is fastenedly connected by pipe collar 27 and probe.As shown in Figure 1, drill bit adopts concentric structure, is made up of 6 parts.Wedge 6 becomes one by welding and drill bit, leaving about Φ 8～12mm hydrophthalmia on the tube wall of water under high pressure passage 2 He on the outer tube wall, with an expansion bolt 2 holes is connected to become water spout 3; Leave the groove that probe 1 is installed in the middle part of drill bit; About Φ 8～12mm hydrophthalmia is left in the rear end of high mud jacking passage 4 and the rear end of drill bit, and 2 holes being connected (can vertically also can have angle to connect) with an expansion bolt becomes 5 whitewashings of whitewashing mouth.
Referring to Fig. 6, Fig. 7, probe 1 has wireless launcher, and the signal of this wireless launcher emission is gathered by the data acquisition instrument, the data acquisition instrument is connected with monitor signal by high frequency wireless transmitter module, antenna again, the data acquisition instrument also is connected with INTERNET by GPRS, realizes the construction remote monitoring.
Referring to Fig. 6, be arranged with battery compartment in the described probe 1, probe CPU, wireless launcher, survey the temperature pick up of temperature of diamond bit, survey the tool angle sensor of drill bit position of rotation, survey the obliquity sensor of drill bit and the pressure sensor of detection drill bit circumferential pressure, battery in the battery compartment and the power supply interface of probe CPU, the tool angle sensor, temperature pick up, obliquity sensor is connected with pressure sensor, temperature pick up, the tool angle sensor, the data wire of obliquity sensor and pressure sensor is connected with data input pin of probe CPU respectively, data output end of probe CPU is connected with wireless launcher again, and the signal that wireless launcher was handled probe CPU sends to the data acquisition instrument.
Referring to Fig. 7, described data acquisition instrument comprises battery, wireless receiving module, high frequency wireless transmitter module, GPRS and CPU, wherein wireless receiving module is by receiving the signal that wireless launcher sends, and signal passed to CPU, CPU is passed to the high frequency wireless transmitter module again after signal is handled, the high frequency wireless transmitter module sends to display by antenna with signal, CPU is handled the back packing with signal and is also sent GPRS to, can monitor construction anywhere by INTERNET and now establish working condition.Described data acquisition instrument also is connected with the operating desk signal by high frequency wireless transmit or GPRS, and the signal that central processing unit for processing is crossed is uploaded to operating desk.
Referring to Fig. 9, probe can be divided into three sections, in one section as battery compartment 32, its end connects battery compartment lid 31, battery in the battery compartment 32 is connected with battery wiring board 34 by circuit, and battery wiring board 34 usefulness epoxy resin 33 are fixed in the probe stage casing, in another section of probe locating slot 37 is arranged, and be mounted with between 36, three sections of pressure sensor 35 and the temperature pick ups and realize being connected by the screw thread screw thread.
Horizontal jet grouting pile driving construction equipment mainly is made up of two parts, i.e. foreground and backstage.The foreground mainly is made up of oil pump, power distribution cabinet, rig shelf, rig, drilling rod and guiding horizontal churning drill bit.The backstage can be referring to Fig. 3-5.
Referring to Fig. 3, mud tank 11 is connected with defeated mud tube 10 by valve 22, fails mud tube 10 and is communicated with the inlet of slush pump 12 again, and the outlet of slush pump 12 can be passed through mud efferent duct 9 and be connected with water feeder on the horizontal directional drilling machine unit head.
Referring to Fig. 4, in stirring slurry tube 18, prepare cement grout, to stir slurry tube 18 is connected with pulp-absorbing pipe 13 by valve, pulp-absorbing pipe 13 is communicated with the inlet of pump for mortar transmission 14 again, the outlet of pump for mortar transmission 14 is communicated with slurry storing tank 16 by feed pipe for mortar 17 and filter screen 15 again, slurry storing tank 16 is connected with another root pulp-absorbing pipe with valve by threeway 21 again, another root pulp-absorbing pipe is communicated with the inlet of cement slurrypump 19 again, and the outlet of cement slurrypump 19 can be connected with water feeder on the horizontal directional drilling machine unit head by cement paste efferent duct 20.
Referring to Fig. 5, scuttlebutt 23 is connected with suction water pipe 26 by valve, and suction water pipe 26 is communicated with the inlet of high-pressure hydraulic pump 24 again, and the outlet of high-pressure hydraulic pump 24 can be connected with water feeder on the horizontal directional drilling machine unit head by water under high pressure efferent duct 25.
The job practices of the drill bit of this guiding horizontal rotary-spraying construction, its step is as follows:
Step 2, the drill bit of guiding horizontal rotary-spraying construction is connected with drilling rod, drilling rod is connected with the horizontal directional drilling machine unit head, mud tank 11 is connected with water feeder on the horizontal directional drilling machine unit head by slush pump 12, the adjustment rig is to position, good hole; Described drilling rod is dual pipe bit tool 8, and the water feeder on the described horizontal directional drilling machine unit head is a high-pressure water tap 7.
Step 3, the pre-guide hole construction of horizontal jet grouting stake, promptly open slush pump 12, to transfer to high mud jacking passage 4 and whitewashing mouth 5 and ejection in the drill bit of guiding horizontal rotary-spraying construction at the mud in the mud tank 11, begin simultaneously to creep into, probe 1 is constantly to display transmission drill bit direction and attitude and hole internal pressure simultaneously, and the tractor driver constantly adjusts the drill bit direction of guiding horizontal rotary-spraying construction according to the information that display shows, guarantee that drilling direction and planned course coincide, until drilling to completion.
Before creeping into, at first prepare mud on the backstage.Slush pump 12 is connected with mud tank 11, mud efferent duct 9 is connected with water feeder on the drill power head again.In the drilling process, probe 1 is transmission drill bit direction of the display on board and information such as attitude and hole internal pressure constantly, have realized that tracking and monitoring drill bit direction, attitude change and hole internal pressure situation at any time.In case find that drill bit creeps into deviation in driction horizontal jet grouting stake design direction, just must rectify a deviation.Continue to creep into after the drill bit drilling direction adjusted to planned course, until drilling to completion.The monitoring holes internal pressure changes, and helps controlling the ground settlement situation of change, guarantees the safety of face of land structure.
Step 5, begin to retreat drilling rod, dual pipe churning simultaneously, promptly open cement slurrypump 19 and high-pressure hydraulic pump 24, to transfer to high mud jacking passage 4 and whitewashing mouth 5 and ejection in the drill bit of guiding horizontal rotary-spraying construction at the cement grout in the slurry storing tank 16, water in the scuttlebutt 23 is transported to the water under high pressure passage 2 of drill bit and the water spout 3 and the ejection of guiding horizontal rotary-spraying construction, formed the water under high pressure cutting soil and mixes the formation rotary churning pile with the soil body after the cutting;
Before the indication of the pressure meter of cement slurrypump 19 and high-pressure hydraulic pump 24 was lower than design pressure, the drill bit original place rotation of guiding horizontal rotary-spraying construction after the pressure meter indication for the treatment of cement slurrypump 19 and high-pressure hydraulic pump 24 reaches design pressure, began to retreat drilling rod.After the pressure meter indication of cement slurrypump 19 and high-pressure hydraulic pump 24 reached design pressure, drilling rod at the uniform velocity rotated, and at the uniform velocity retreats.
Step 6, when water spout 3 during near face (general 0.5-3 rice), close high-pressure hydraulic pump 24, stop water spray, when whitewashing mouth 5 during near face (general 0.5-3 rice), close cement slurrypump 19, stop whitewashing; Withdraw from drilling rod and clean drilling rod with water under high pressure.
Step 7, drilling rod all withdraw from, sealing of hole immediately then, and single jet grouting pile construction finishes.Rig is moved to next pile position constructs.
Above-mentioned high-pressure pump (bottom nozzle) can replace with the conventional mud pump, injects the scope that the cement paste after-teeming has been cut, and be common two-tube horizontal jet grouting this moment.
Aforementioned is two-tube pair of high-pressure horizontal churning, and the present invention also can be that drill bit internal only applies the horizontal jet grouting stake with single passage.
The special case of above-mentioned situation is to return when removing churning, only with single high-pressure pump the aforementioned pump that applies pre-guide hole is being stopped using, just becoming the single tube horizontal jet grouting at this moment.And bore pre-guide hole and adopt different passages with churning.Two-tube in addition also is a kind of special case as being simplified to single tube.
All diverse ways also may cause diameter and other characteristics of different rotary churning piles for different construction requirements and strata condition.Core of the present invention is to have increased guide function on different mode bases.
Operating principle of the present invention:
Utilize engineering driller, after the bit drills that will have a nozzle proceeds to the soil layer design attitude, with high-tension apparatus the injection stream of slurries is ejected from nozzle, the impact failure soil body, form the space of reservation shape, peel off a grogs part of getting off from the soil body with the injection stream ground of emerging, remainder mixes with the slurries that inject under the effects such as impact force, centrifugal force and gravity of injection stream, and rearrange regularly in certain puddled soil ratio and quality size, just in soil, form a induration after solidifying with certain intensity.
Because adopt guiding to advance churning with pipe bit, drill bit adopts and the isometrical wedge type drill bit of drilling rod, general wedge rotating diameter Φ≤127mm, wedge surface and the drilling tool angle of cut≤25 °.When drilling and forming hole, (drilling pipe is along straight ahead when the normal rotary drilling of drill bit for the probe that has special guide-localization sensor that install at the drill bit position.When drill bit departs from desired trajectory for a certain reason and is partial to a certain direction, just need rectify a deviation.Method is that the drill bit wedge surface is transferred to the direction of deflection, and rig stops to turn round afterburning jacking, and drill bit is because the effect on inclined-plane deflection is in the opposite direction adjusted the direction of creeping into this.Towards the skew direction towards with drill bit at angle all is by the guiding probe monitoring that is contained in the drill bit rear portion) determine the particular location that sets direction and nozzle of drill bit to change drilling direction where necessary, guarantee the high accuracy of constructing.The water of water under high pressure passage is under pressure and the soil body in the certain limit is cut, destroys with the injection stream of huge energy by the water spout that is installed in chisel edge when reaching rated pressure and flow, the slurries of high mud jacking passage and high mud jacking passage annular space are under pressure when reaching rated pressure and flow by being installed in the whitewashing mouth ejection slurries of drill bit rear end, force soil particle fully to mix with slurries, form the columnar water earth induration of approximate horizontal then, thereby construct high-precision purpose when reaching the guiding horizontal churning.
At chisel edge the clapboard of adjusting drilling direction is installed, special probe is installed at drill bit internal.Utilize the position and the attitude information of the drill bit that probe sends, display receives and shows drill bit inclination angle, azimuth, tool angle.(clapboard is 12 points up, as clock face).If set angle on the lower side, can be transferred to 12 points to drill bit, promptly clapboard up, directly jacking, be subjected to the power that makes progress because clapboard base plate inclined-plane area is big this moment, bit course will move up.In like manner can make bit course down 6 corrections, 9 points, 3 are respectively to be left and right correction direction.If angle is suitable, rig is rotary drilling at the uniform velocity, and this moment, the drilling rod track generally was straight.So drill bit is the key of rectifying a deviation up and down.In the pre-guide hole drilling process, find that borehole throw is excessive should in time rectify a deviation.
Concrete method for correcting error is as follows: the wedge surface of clapboard is transferred to the direction of deflection, and rig stops to turn round afterburning jacking, and drill bit is because the effect on inclined-plane deflection is in the opposite direction adjusted the direction of creeping into this.The skew direction towards with drill bit towards the angle all is to be monitored by the probe that is contained in the drill bit rear portion, by probe information such as drill bit inclination angle, azimuth and tool angle is transferred on the display of rig operating desk, and the tractor driver just can adjust drilling direction easily.
Return behind the drilling to completion and remove the drilling rod horizontal high voltage churning of going forward side by side, thereby the horizontal jet grouting stake that realizes high accuracy, long distance applies.
Claims (10)
1. the drill bit of a guiding horizontal rotary-spraying construction, comprise drill main body (29) and be fixedly connected on the wedge (6) of drill main body head, in drill main body, be furnished with water under high pressure passage (2) and high mud jacking passage (4) vertically, water under high pressure passage (2) side direction has water spout (3), high mud jacking passage (4) side direction has whitewashing mouth (5), it is characterized in that:
Also have a groove (30) on the described drill main body sidewall, edge intrinsic probe (1) in the groove, this probe (1) has wireless launcher, and the signal of this wireless launcher emission is gathered by the data acquisition instrument, the data acquisition instrument is connected with monitor signal by high frequency wireless transmitter module, antenna again, the data acquisition instrument also is connected with INTERNET by GPRS, realizes the construction remote monitoring.
2. the drill bit of guiding horizontal rotary-spraying construction according to claim 1 is characterized in that: described probe (1) external surface is with sebific duct (28), and sebific duct is fastenedly connected by pipe collar (27) and probe.
3. the drill bit of guiding horizontal rotary-spraying construction according to claim 1 and 2, it is characterized in that: described probe is arranged with battery compartment in (1), probe CPU, wireless launcher, survey the temperature pick up of temperature of diamond bit, survey the tool angle sensor of drill bit position of rotation, survey the obliquity sensor at drill bit inclination angle and the pressure sensor of detection drill bit circumferential pressure, battery in the battery compartment and the power supply interface of probe CPU, the tool angle sensor, temperature pick up, obliquity sensor is connected with pressure sensor, temperature pick up, the tool angle sensor, the data wire of obliquity sensor and pressure sensor is connected with data input pin of probe CPU respectively, data output end of probe CPU is connected with wireless launcher again, and the signal that wireless launcher was handled probe CPU sends to the data acquisition instrument.
4. the drill bit of guiding horizontal rotary-spraying construction according to claim 3, it is characterized in that: described data acquisition instrument comprises battery, wireless receiving module, the high frequency wireless transmitter module, GPRS and CPU, wherein wireless receiving module is by receiving the signal that wireless launcher sends, and signal passed to CPU, CPU is passed to the high frequency wireless transmitter module again after signal is handled, the high frequency wireless transmitter module sends to display by antenna with signal, CPU is handled the back packing with signal and is also sent GPRS to, can monitor construction anywhere by INTERNET and now establish working condition.
5. the drill bit of guiding horizontal rotary-spraying construction according to claim 4 is characterized in that: described data acquisition instrument also is connected with the operating desk signal by high frequency wireless transmit or GPRS, and the signal that central processing unit for processing is crossed is uploaded to operating desk.
6. job practices of using the drill bit of any described guiding horizontal rotary-spraying construction among the aforesaid right requirement 1-5 is characterized in that step is as follows:
Step 1, rig are in place, perforate and orifice tube is installed, and promptly use the opening bit perforate, and then orifice tube and sealing device are installed, and reinforce;
Step 2, the drill bit of guiding horizontal rotary-spraying construction is connected with drilling rod, drilling rod is connected with the horizontal directional drilling machine unit head, mud tank (11) is connected with water feeder on the horizontal directional drilling machine unit head by slush pump (12), the adjustment rig is to position, good hole;
Step 3, the pre-guide hole construction of horizontal jet grouting stake, promptly open slush pump (12), to transfer to high mud jacking passage (4) and whitewashing mouth (5) and ejection in the drill bit of guiding horizontal rotary-spraying construction at the mud in the mud tank (11), begin simultaneously to creep into, probe (1) is constantly to display transmission drill bit direction and attitude and hole internal pressure simultaneously, the information that the tractor driver shows according to display, constantly adjust the drill bit direction of guiding horizontal rotary-spraying construction, guarantee that drilling direction and planned course coincide, until drilling to completion;
Step 4, the water feeder on mud tank (11) and the horizontal directional drilling machine unit head is disconnected, slurry storing tank (16) is connected with water feeder on the horizontal directional drilling machine unit head by cement slurrypump (19), scuttlebutt (23) is passed through high-pressure hydraulic pump (24) be connected with water feeder on the horizontal directional drilling machine unit head;
Step 5, begin to retreat drilling rod, dual pipe churning simultaneously, promptly open cement slurrypump (19) and high-pressure hydraulic pump (24), to transfer to high mud jacking passage (4) and whitewashing mouth (5) and ejection in the drill bit of guiding horizontal rotary-spraying construction at the cement grout in the slurry storing tank (16), water in the scuttlebutt (23) is transported to the water under high pressure passage (2) of drill bit and the water spout (3) and the ejection of guiding horizontal rotary-spraying construction, formed the water under high pressure cutting soil and mixes the formation rotary churning pile with the soil body after the cutting;
Step 6, when water spout (3) during apart from 0.5～3 meter on face, close high-pressure hydraulic pump (24), stop water spray, when whitewashing mouth (5) during, close cement slurrypump (19) apart from 0.5～3 meter on face, stop whitewashing;
Step 7, drilling rod all withdraw from, sealing of hole immediately then, and single jet grouting pile construction finishes.
7. the job practices of the drill bit of guiding horizontal rotary-spraying construction according to claim 6 is characterized in that: described drilling rod is a dual pipe bit tool (8), and the water feeder on the described horizontal directional drilling machine unit head is high-pressure water tap (7).
8. the job practices of the drill bit of guiding horizontal rotary-spraying construction according to claim 6, it is characterized in that: in the above-mentioned steps five, before the pressure meter indication of cement slurrypump (19) and high-pressure hydraulic pump (24) is lower than design pressure, the drill bit original place rotation of guiding horizontal rotary-spraying construction, after the pressure meter indication for the treatment of cement slurrypump (19) and high-pressure hydraulic pump (24) reaches design pressure, begin to retreat drilling rod.
9. the job practices of the drill bit of guiding horizontal rotary-spraying construction according to claim 6, it is characterized in that: in the above-mentioned steps five, after the pressure meter indication of cement slurrypump (19) and high-pressure hydraulic pump (24) reached design pressure, drilling rod at the uniform velocity rotated, and at the uniform velocity retreats.
10. the job practices of the drill bit of guiding horizontal rotary-spraying construction according to claim 6, it is characterized in that: probe is divided into three sections, in one section as battery compartment (32), its end connects battery compartment lid (31), battery in the battery compartment (32) is connected with battery wiring board (34) by circuit, and battery wiring board (34) is fixed in the probe stage casing with epoxy resin (33), in another section of probe locating slot (37) is arranged, and be mounted with sensor, realize being connected by the screw thread screw thread between three sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN102287183A (en) * | 2011-06-24 | 2011-12-21 | 北京市三一重机有限公司 | Device and method for measuring drill hole inclination of rotary drilling rig |
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| CN104405332B (en) * | 2014-10-15 | 2016-08-31 | 中国地质大学（武汉） | A kind of two position switching valve devices for non-particulate slip casting |
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| CN104879141A (en) * | 2015-06-02 | 2015-09-02 | 杨积凯 | Tunnel bottom plugging structure and construction method thereof |
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| CN108590535A (en) * | 2018-04-20 | 2018-09-28 | 辽宁石油化工大学 | Monitor and obtain in real time the intelligent drill bit of each parameter in underground |
| CN109505519A (en) * | 2019-01-12 | 2019-03-22 | 江西理工大学 | A kind of sandblasting drilling machine |
| CN109505519B (en) * | 2019-01-12 | 2023-10-24 | 江西理工大学 | Sand blasting drilling machine |
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Denomination of invention: Drilling bit for guiding horizontal roatatably-jetting construction and construction method thereof Effective date of registration: 20120903 Granted publication date: 20120801 Pledgee: Bank of Communications Ltd Beijing Zhongguancun Park sub branch Pledgor: Beijing Shouer Engineering Technology Co., Ltd. Registration number: 2012990000487 |