CN117966703A - Drilling assembly and method for exploration and sampling of foundation of building engineering - Google Patents
Drilling assembly and method for exploration and sampling of foundation of building engineering Download PDFInfo
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- CN117966703A CN117966703A CN202410384320.5A CN202410384320A CN117966703A CN 117966703 A CN117966703 A CN 117966703A CN 202410384320 A CN202410384320 A CN 202410384320A CN 117966703 A CN117966703 A CN 117966703A
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- 238000005553 drilling Methods 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000005070 sampling Methods 0.000 title claims abstract description 37
- 229920001971 elastomer Polymers 0.000 claims abstract description 65
- 238000012544 monitoring process Methods 0.000 claims abstract description 54
- 239000000806 elastomer Substances 0.000 claims abstract description 49
- 238000010276 construction Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 239000011435 rock Substances 0.000 claims abstract description 18
- 238000005527 soil sampling Methods 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims description 32
- 239000000523 sample Substances 0.000 claims description 24
- 238000012545 processing Methods 0.000 claims description 8
- 230000005641 tunneling Effects 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 23
- 239000004575 stone Substances 0.000 description 14
- 239000002184 metal Substances 0.000 description 12
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 10
- 235000017491 Bambusa tulda Nutrition 0.000 description 10
- 241001330002 Bambuseae Species 0.000 description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 10
- 239000011425 bamboo Substances 0.000 description 10
- 238000009825 accumulation Methods 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 230000035515 penetration Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/04—Sampling of soil
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Soil Sciences (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drilling assembly and a drilling method for exploration and sampling of a foundation of a building engineering, and belongs to the technical field of rock and soil drilling, wherein the drilling assembly comprises a drill bit assembly and a sleeve, and the drill bit assembly comprises a core barrel, a drill rod, a connecting barrel and a sleeve; the upper end of the connecting cylinder is provided with a first elastic body; the side wall of the sleeve is provided with a roller, and the sleeve is provided with a limiting piece; when the sleeve is arranged on the drill rod, the limiting piece prevents the sleeve from rotating around the drill rod, the sleeve can slide along the axial direction of the drill rod, and the wheel surface of the roller is supported on the outer surface of the drill rod; the bottom of the sleeve is provided with a supporting seat; the top side of the sleeve is connected with a second elastomer. The drilling method comprises a rock and soil sampling step in a drilling process realized based on the drilling assembly. The scheme can be used for monitoring the relative motion state of the drill rod and the sleeve, and can monitor the lower detection amount of the core barrel and reduce the drilling construction fault rate in the process of adopting the core barrel to perform exploration sampling.
Description
Technical Field
The invention relates to the technical field of geotechnical drilling, in particular to a drilling assembly and a drilling method for foundation exploration sampling of constructional engineering.
Background
In the prior art, in order to serve the construction engineering, geological conditions of the position where the construction engineering is located are explored by adopting a geological exploration technology before the construction engineering design and construction are carried out, wherein, the exploration is a conventional exploration method for acquiring geological characteristics of the position of the construction engineering, a movable or fixed drilling platform is generally adopted, exploration holes are obtained in a rotary drilling and impact drilling mode, soil samples, rock samples and the like with different stratum depths are acquired in the drilling process, and the characteristics of groundwater are acquired by utilizing the exploration holes.
In the drilling construction process, a sandy stratum with pebbles and broken stones and other components is a stratum with high drilling difficulty, in order to prevent the exploratory hole from collapsing, a sleeve with hole wall protection and isolation sealing functions is required to be installed in the process of drilling, when geological conditions and the structure of a drill bit assembly are not suitable for drilling by using a drill bit with a reamer, a hanging hammer is usually used for impacting the sleeve to complete the installation of the sleeve in the exploratory hole, due to collapse in the exploratory hole, the sleeve generally does not touch the bottom of the exploratory hole when hammering the sleeve, and the sleeve is kept at a specific position in the depth direction of the stratum under the action of bottom support and side direction.
In order to ensure smooth implementation of geological exploration of constructional engineering, the related technical scheme is necessary to be supplemented from the viewpoint of construction failure rate in the drilling process.
Disclosure of Invention
Aiming at the technical problems of ensuring smooth implementation of geological exploration of constructional engineering and supplementing related technical schemes, the invention provides a drilling assembly and a drilling method for exploration sampling of a foundation of the constructional engineering, wherein the drilling assembly and the drilling method can be used for monitoring the relative motion state of a drill rod and a sleeve.
The invention provides a drilling assembly and a drilling method for foundation exploration sampling of constructional engineering, which solve the problems through the following technical points: the drilling assembly comprises a drill bit assembly for drilling a stratum to obtain a probe hole, a sleeve for being embedded in the probe hole to protect the probe hole, a core barrel, a drill rod connected to the upper end of the core barrel, a connecting barrel and a sleeve, wherein the drill bit assembly comprises a drill rod, a drill rod and a drill rod, wherein the drill rod is used for drilling the stratum to obtain the probe hole;
The lower end of the connecting cylinder is provided with a connecting thread for connecting the connecting cylinder with the upper end of the sleeve in a threaded manner, and the upper end of the connecting cylinder is provided with a first elastomer;
the side wall of the sleeve is provided with a roller, the axial direction of the roller is perpendicular to the axial direction of the sleeve, the sleeve is sleeved on the outer side of the drill rod, and the sleeve is provided with a limiting piece for preventing the sleeve from rotating around the drill rod;
when the sleeve is arranged on the drill rod, the limiting piece prevents the sleeve from rotating around the drill rod, the sleeve can slide along the axial direction of the drill rod, and the wheel surface of the roller is supported on the outer surface of the drill rod;
The bottom of the sleeve is also provided with a supporting seat, and the sleeve can slide along the drill rod under the action of gravity until the supporting seat is supported on the first elastic body;
The top side of the sleeve is also connected with a second elastomer positioned above the sleeve.
In the prior art, when drilling and sampling for geological exploration of constructional engineering are performed by using a drill bit assembly for a core drill bit, when the drill bit assembly is applied to broken strata with pebbles, broken stones and other components, a casing tube with the collapse prevention protection function of a exploratory hole is embedded in the formed exploratory hole by using a hanging hammer, and then the formed exploratory hole is further drilled under the protection of the casing tube. However, due to collapse that has occurred, hard foreign matters such as pebbles or other types of gravels can enter the inner side of the drill rod in the process of casing embedding, and can be partially discharged through flushing water with the aid of the drill rod drill bit assembly, but the hard foreign matters cannot be guaranteed to be completely discharged, and when the drill rod assembly is required to be lifted to drill the exploratory hole further under the protection of the casing, the casing is generally kept at the original position of the exploratory hole, the drill bit assembly comprises a coring barrel and a drill rod joint, the longer coring barrel is as long as several meters, the size of the upper end of the drill rod joint is generally smaller than that of the coring barrel, a diameter-changing section on the drill rod joint is formed at the lower end of the drill rod joint, a gravels accumulation area is formed between the lower end of the casing and the diameter-changing section if the diameter-changing section stretches out relative to the casing in the process of moving down, when the drill rod assembly is required to sample substances in the coring barrel on the ground, the rock accumulation area is deposited on the rock accumulation area, the drill bit assembly cannot be normally lifted out of the exploratory hole, the drilling hole is caused, the drilling hole is prevented from being made to occur, and the drilling hole is prevented from being lifted by the bore hole, and the bore hole is not required to be completely broken down, and the bore hole is formed as the casing is required to be lifted.
Aiming at the problems, a construction scheme special for sampling different strata of geological exploration of constructional engineering is provided, which comprises the following concrete steps: in a rock and soil sampling stage in a drilling process, a sleeve is utilized for a probe hole which is easy to collapse, the sleeve is inlaid in the formed probe hole to avoid collapse of the probe hole, a drill bit assembly with a core barrel is used for drilling the probe hole, the drill bit assembly penetrates through the sleeve, the drill bit assembly rotates under the action of a motor or an oil extraction machine on a drill rod, the drill bit assembly further digs the probe hole under the action of a hydraulic mechanism, and the core barrel collects stratum rock samples and soil samples in the drilling process; in order to avoid that the core barrel is excessively lowered relative to the casing to form a broken stone accumulation area, so that the drill bit assembly cannot be lifted later, the drill bit assembly is limited by the supporting component in the process of lowering relative to the casing, when the maximum lowering amount is reached, the drill bit assembly is supported on the casing through the supporting component, the upper end of the core barrel is positioned in the casing, the inner supporting component is fixed on the inner side of the casing, the outer supporting component is fixed on the drill rod joint or the outer side of the drill rod above the core barrel, the inner supporting component is of course of a size which allows the core barrel to extend from the casing, the drill rod and the casing are usually required to be lengthened for a plurality of times according to needs in the process of exploratory drilling, and the core barrel and the drill bit at the lower end of the drill bit assembly are suitable for stratum drilling with different depths, the inner support member is preferably fixed to the lowermost sleeve, the outer support member is fixed to the drill rod structure or the lowermost drill rod, and when this is done, if the core barrel and drill bit are not replaced or the same core barrel and drill bit are reused in different drilling stages, lengthening of the drill rod and lengthening of the sleeve will not result in the need to reconfigure the support member, although the problem of excessive downward exploration of the core barrel is solved in the above manner, it is inconvenient to provide means for monitoring the supporting state of the inner support member to the outer support member inside the sleeve, and at the same time, the drill rod has lifting and downward inserting actions (not being pulled out) under the action of the driving mechanism during operation, and the drilling speed is relatively slow when the bottom drilled object is harder, and the sleeve is not clamped during drilling, and the sleeve may be automatically dropped down, based on the above, the scheme provides a drilling assembly suitable for geological exploration sampling, which is particularly suitable for the working condition that the core barrel needs to be repeatedly pulled out in the sampling stage.
It is easy to understand that, because flushing water, slurry or blowout overflows from the upper end of the casing during drilling, the related structure connected with the sleeve has a certain influence on the overflow of the casing, so that in the drilling assembly in the scheme, related components can be used in a complete set, and the sleeve, the supporting seat and other components are not required to be fixed on the drill rod all the time during the whole process of implementing exploration exploratory hole drilling. The specific principle of the scheme is as follows: the sleeve is synchronous with the rotation of the drill rod through the action of the limiting piece, the connecting cylinder is fixed at the upper end of the sleeve through the connecting threads, the drill rod moves relative to the sleeve along the axis of the sleeve in the process of downward probing and lifting the drill rod by the drill bit assembly, the supporting seat is supported on the first elastic body under the action of gravity at the moment, so that the drill rod moves relative to the sleeve when the axis moves, the friction force of the side wall of the drill rod to the roller wheel surface forces the roller to roll, after the drill bit assembly is supported on the sleeve, the drill bit assembly cannot further downward probing relative to the sleeve, the rolling condition of the roller is changed, in this way, in the tunneling probing process, the rolling condition of the roller is identified through manual observation or by utilizing the monitoring module, when the supporting seat is supported on the first elastic body and the rotating quantity of the roller in the set time is smaller than the set rotating quantity, the drill bit assembly is judged to reach the maximum downward probing quantity, at the moment, the drill bit assembly should be immediately stopped to drive the drill rod to avoid damaging the supporting part, and the sampling is carried out in the coring cylinder, or the embedding depth of the sleeve is further deepened and the probing hole is further to collect rock samples and soil samples.
In summary, this scheme provides an auxiliary stay part and uses according to the drill bit subassembly structural feature that has the core section of thick bamboo and to the operating characteristics of drill bit subassembly, specifically monitors the drilling rod through the roll characteristic of monitoring gyro wheel and surveys the volume for the sleeve pipe down, avoids taking the core section of thick bamboo too much downshifting and causing the core section of thick bamboo jam in the in-process that adopts the core section of thick bamboo to take the exploration sample to reduce the technical scheme of core section of thick bamboo jam fault rate purpose.
To the blowout problem that probably appears, this scheme sets up to still including first elastomer and second elastomer, the second elastomer is used for realizing: under the impact of the fluid ejected by the casing, the supporting seat and the sleeve structure can be separated from the first elastic body to move upwards and strike on a driving mechanism for driving the drill rod to rotate, and when the problem occurs, the second elastic body can relieve the striking force of related parts to achieve the purpose of protecting the related parts; when blowout disappears or impact force is reduced, the supporting seat and the sleeve structure fall back to be supported on the connecting cylinder, and the first elastic body can relieve the impact force of the relevant parts in falling contact so as to achieve the purpose of protecting the relevant parts.
The first elastomer provided also has the following characteristics: in the working process of the drilling assembly, the drill rod is generally provided with obvious vibration, and the sleeve is synchronous with the rotation of the drill rod, so that the vibration can be transmitted to the supporting seat, and the supporting of the supporting seat is flexible by using the first elastomer, so that the impact strength of a relevant acting surface can be effectively reduced by the first elastomer; when the supporting seat rotates synchronously with the sleeve, the supporting seat is in soft contact and can generate certain jump under the action of the first elastic body, so that the abrasion speed of the relevant acting surface can be effectively reduced.
The limiting piece has the following characteristics: the roller only needs to rotate around the wheel axle, and meanwhile, the roller does not need to bear larger sideslip force, so that the roller is protected and the structural design is simplified.
In the structural system, fluid sprayed out of the sleeve is not easy to directly act on the roller, and the monitoring module can be protected by observing the rolling of the roller. Further, the monitoring module can be fixed on the sleeve, and the monitoring signal is transmitted to an external receiving device through a wireless signal.
Further, the maximum impact force possibly received by the first elastomer in the use process is smaller than the maximum impact force possibly received by the second elastomer in the use process, and the first elastomer adopts a solid rubber column; when the second elastic body is of a non-closed annular cylinder structure, a rubber column with metal springs embedded inside is adopted, the metal springs are arranged in a wavy line shape, the lower ends of the metal springs are fixed on the sleeve, the upper ends of the metal springs are embedded in the rubber, and a plurality of metal springs are arranged at intervals along the circumferential direction of the sleeve; when the second elastic body is of a closed annular cylinder structure, the metal spring adopts a spiral spring with the lower end fixed with the sleeve and the upper end embedded in rubber.
Further, to reduce the resistance of the sleeve to movement relative to the drill pipe, the inner wall of the sleeve is spaced from the outer side of the drill pipe by rollers.
Further, for round drill rods, the side surface of the drill rod is usually provided with a strip-shaped groove extending along the axis of the drill rod, and for this type of drill rod, the limiting piece is a convex rib on the inner wall of the sleeve, and the convex rib is inserted into the strip-shaped groove to enable the sleeve to rotate synchronously with the drill rod; for square drill pipes, square sleeves and rollers can be used as the limiting pieces to prevent the sleeves from being synchronous with drilling holes of the drill pipes, but a better implementation mode is to arrange a plurality of rollers, and the tread of the rollers acts on different sides of the drill pipes so as to achieve the purpose of reducing lateral shaking of the sleeves and protecting the tread of the rollers.
Further, for the problem of influencing the ejection of the fluid at the upper end of the sleeve, as only the first elastic body is required to be arranged on the connecting cylinder, the influence of the structure of the connecting cylinder part on the ejection of the fluid is small, and in the whole drilling process, when the roller is not required or required to monitor the downward detection amount of the drill rod relative to the sleeve, the supporting seat and the second elastic body are conveniently assembled and disassembled on the drill rod, the sleeve is a spliced structure comprising two semi-rings, the two sides of each semi-ring are fixedly provided with connecting lug plates, and the two semi-rings are connected with each other through connecting bolts arranged on the connecting lug plates;
the support seat comprises two seat bodies, the bottom of each semi-ring is fixedly provided with one seat body, after the sleeve is fixed into a closed annular structure through the connecting bolt, the two seat bodies form a closed plate ring structure, and the bottom surface of the plate ring structure is perpendicular to the axis of the drill rod;
The upper end of each semi-ring is fixed with a second elastomer. When adopting this scheme, when needing to install sleeve isotructure, dismantle connecting bolt and make two semi-rings mutually separate, then follow the side of drilling rod with each semi-ring cladding on a pair of opposite sides of drilling rod, then fix two semi-rings through the engaging lug board, can establish relevant structure cover on the drilling rod, the sleeve of dismantling also accessible opposite process is accomplished, need not to install sleeve, supporting seat and second elastomer or accomplish the dismantlement of these parts on the drilling rod through the upper end of drilling rod like this. It is easy to understand that the bottom surface of the plate ring structure is a contact surface for contacting with the first elastic body, and when a plurality of supporting points located on a plane perpendicular to the axis of the drill rod are provided by the first elastic body, the sleeve and other structures have better stability in the working process. The upper ends of the semi-rings are all fixed with second elastic bodies for enabling the second elastic bodies to better relieve impact force of related parts in multiple directions.
Further, the better support of supporting seat receives sleeve pipe blowout fluid's influence on first elastomer in this drilling subassembly, so can set up balancing weight installation region on the up end of supporting seat to avoid appearing supporting seat, sleeve, second elastomer and can not well support the condition on first elastomer under stronger blowout condition.
Further, because the sleeve pipe upper end is required to have the fluid overflow ability under the normal operating mode, in order to avoid the supporting seat to break away from first elastomer for a long time and avoid first elastomer to drop under fluid washout, the quantity of first elastomer is a plurality of, and first elastomer is arranged along the circumference direction interval of connecting cylinder, and the lower extreme and the connecting cylinder fixed connection of first elastomer. In the scheme, a fluid discharge channel can be formed between the first elastic bodies, and the connecting cylinder is fixedly connected with the first elastic bodies, namely, the connecting cylinder is used for preventing the first elastic bodies from falling off under fluid flushing.
Further, in order to facilitate replacement of the first elastic body or disassembly of the first elastic body, the connecting cylinder comprises a cylinder body with an annular structure, the connecting screw thread is positioned at the lower end of the cylinder body, and the upper end of the cylinder body is provided with a first structure;
the connecting cylinder further comprises an arc-shaped rod, the radius of the arc-shaped rod is the same as that of the cylinder, the length of the arc-shaped rod is smaller than or equal to one half of the circumference of the cylinder, and the lower end of the arc-shaped rod is provided with a second structure;
one of the first structure and the second structure is a protrusion, and the other is a groove, and the protrusion can be embedded into the groove; one of the cylinder body and the arc-shaped rod is provided with a threaded hole, one end of the threaded hole is positioned on the outer surface of the one, and the other end of the threaded hole is intersected with the side wall of the groove; when the protrusions are embedded into the grooves, the threaded holes are used for installing locking bolts for realizing the mutual locking of the cylinder body and the arc-shaped rods;
The upper end of the arc-shaped rod is provided with a fixing seat, and the bottom of the first elastic body is fixed on the fixing seat. In this scheme, set up the connecting cylinder into barrel and the arc pole including dismantling the connection to set up the fixing base on the arc pole in order to fix first elastomer, utilize locking bolt installation barrel and arc pole interlock behind protruding embedding recess, can accomplish barrel and arc pole mutual separation after the locking bolt of slackening. The setting aim of this scheme is: when the first elastomer is damaged or the first elastomer needs to be connected or detached on the connecting cylinder, the protrusion is embedded into the groove and the locking bolt is installed, and then the arc-shaped rod and the first elastomer are installed on the cylinder; through separation arc pole and barrel behind the slackening locking bolt, then with arc pole and first elastomer again barrel on separate, the structural feature of this scheme is including implementing above operation and not receiving the influence of drilling rod, simultaneously, and the barrel of long-term reservation on the sleeve is equivalent to the sleeve pipe tandem structure of ordinary, and it can not influence sleeve pipe discharge fluid. However, when the sleeve is lengthened, the sleeve is lengthened after the cylinder is detached, and the cylinder is connected with a new upper sleeve.
Further, when the supporting seat rotates along with the sleeve, sliding friction exists between the first elastomer and the supporting seat, and particularly, when stone particles exist in fluid discharged by the sleeve, the damage to the upper end face of the first elastomer and the lower end face of the supporting seat is large, and for protecting related parts, the sleeve is rotatably connected with the supporting seat in a connection relation, and the rotatable connection is as follows: the sleeve is rotatable about an axis of the sleeve independent of the support base. In this scheme, the sleeve rotates for the supporting seat in step with the drilling rod, can effectively reduce the damage to first elastomer and supporting seat. Preferably, the rotatable connection is implemented in the following manner: the drilling machine further comprises a bearing seat provided with a central hole, wherein a rolling bearing is arranged in the bearing seat, the inner ring of the rolling bearing is exposed in the central hole, and the bearing seat is sleeved on the outer side of the drill rod through the central hole;
The lower end of the sleeve is fixed in the inner ring;
The supporting seat is fixedly connected with the bearing seat. In this scheme, antifriction bearing's outer lane is connected with the bearing frame interference, antifriction bearing's inner circle is connected with the sleeve interference to adopt antifriction bearing that the antifriction body both sides have the spacer ring, in order to prolong antifriction bearing's life. By adopting the scheme, the sleeve can rotate independently of the bearing seat and synchronously rotate with the drill rod, and sliding friction does not occur at the upper end position of the first elastic body.
Further, in order to realize the isolation of the sleeve and the drill rod by utilizing the plurality of rollers, the drill rod is provided with the rollers which are contacted with the side surface of the drill rod as much as possible when vibrating, so that the friction force between the rollers and the drill rod is utilized to monitor whether the sleeve can be further extended downwards, and the plurality of rollers are distributed at intervals along the circumferential direction of the sleeve;
Each roller is a rubber wheel surface, and after the sleeve is installed on the drill rod, each roller is restrained to generate elastic compression deformation for the rubber wheel surface. In this scheme, the rubber tread that is compressed is not only favorable to keeping the contact state of gyro wheel and drilling rod under the vibration operating mode, simultaneously, when drilling rod and sleeve have relative displacement for the gyro wheel obtains sufficient frictional force more easily in order to embody the rolling state that reflects the drilling rod motion.
Further, as an addition to monitoring the contact of the drill bit assembly with the casing, the device further comprises a first vibration monitoring sensor for being mounted on the sleeve, and a second vibration monitoring sensor for being mounted on the connecting cylinder;
The device further comprises a data processing module, wherein the data processing module receives detection data of the first vibration monitoring sensor and the second vibration monitoring sensor, and judges the vibration characteristic difference of the sleeve and the connecting cylinder according to the detection data. When the vibration on the drill bit assembly is transmitted to the sleeve through the rigid supporting component, the vibration on the drill bit assembly is transmitted to the sleeve through the first elastomer, the difference of vibration intensity between the sleeve and the sleeve is obvious, in the scheme, the detection signals of the first vibration monitoring sensor and the second vibration monitoring sensor can be used for analyzing the difference of vibration characteristics of the sleeve and the sleeve through the data processing module, so that the drill rod downward detection auxiliary scheme except for rolling detection is provided in the scheme.
The further application is as follows: when the monitoring module is adopted to realize rolling monitoring of the roller, if the first vibration monitoring sensor and the second vibration monitoring sensor detect that the drill bit assembly does not work, the sleeve and the drill rod judged by the monitoring module do not have relative movement at the moment and are not used as a judging basis for the maximum downward detection amount of the drill bit assembly.
Further, in order to realize the automatic identification of the rolling of the roller, the device also comprises a monitoring module for monitoring the rolling condition of the roller.
Furthermore, the scheme also discloses a drilling method for the exploration and sampling of the foundation of the constructional engineering, which comprises a rock and soil sampling step in the drilling process, wherein the rock and soil sampling step is realized by adopting the drilling assembly, and the drilling assembly is used for drilling the foundation of the constructional engineering;
the casing is embedded in the formed exploratory hole, the drill bit component penetrates through the casing, the drill bit component rotates under the action of the driving mechanism on the drill rod, the drill bit component further digs into the exploratory hole under the action of dead weight or the driving mechanism, and the coring barrel is used for rock sampling;
The drill bit assembly is limited by the support component in the process of descending relative to the casing, and when the maximum descending amount is reached, the drill bit assembly is supported on the casing by the support component, and the upper end of the coring barrel is positioned in the casing;
in the process of further tunneling the exploratory hole, the rolling condition of the roller is identified through a manual observation or monitoring module, when the supporting seat is supported on the first elastic body and the rotation amount of the roller in the set time is smaller than the set rotation amount, the drill bit component is judged to reach the maximum downward exploration amount, and the drill bit component is pulled out and sampled from the coring barrel or the embedded depth of the sleeve is further deepened, and the exploratory hole is further tunneling.
The invention has the following beneficial effects:
According to the technical scheme, the auxiliary supporting component is used according to the structural characteristics of the drill bit component with the core barrel and the operating characteristics of the drill bit component, specifically, the downward detection quantity of the drill rod relative to the sleeve is monitored through the rolling characteristics of the monitoring roller, and the problem that the core barrel is blocked due to excessive downward movement in the process of exploring and sampling by the core barrel is avoided, so that the blocking failure rate of the core barrel is reduced.
Aiming at the possible blowout problem, the scheme is set to further comprise a first elastomer and a second elastomer, so that the impact force of related components can be relieved, and the purpose of protecting the related components is achieved.
The first elastic body can effectively reduce the impact strength of the relevant acting surface; the first elastomer is effective to reduce the rate of wear of the associated active surface.
Drawings
FIG. 1 is a schematic illustration of the relative positional relationship of a casing and drill bit assembly in one embodiment;
FIG. 2 is a schematic structural view of one embodiment of a drilling assembly for use in the survey sampling of a foundation of a construction project according to the present disclosure;
fig. 3 is a schematic structural diagram of a drilling assembly for exploration and sampling of foundation of construction engineering according to an embodiment of the present invention, and the difference between the embodiment shown in fig. 2 and the embodiment shown in fig. 3 is that: the bearing seat is included in fig. 2, and the sleeve and the connecting cylinder in fig. 3 are all in a spliced structure;
FIG. 4 is a top view of the sleeve used in FIG. 3;
FIG. 5 is a top view of the cartridge employed in FIG. 3;
FIG. 6 is a bottom view of the arcuate lever employed in FIG. 3;
Fig. 7 is a top view of the arcuate lever of fig. 6.
Wherein, the reference numerals are respectively as follows: 1. the device comprises a sleeve, 2, a drill rod joint, 3, a broken stone accumulation area, 4, a core barrel, 5, a connecting barrel, 51, a barrel, 52, an arc-shaped rod, 53, a first structure, 54, a second structure, 55, a fixing seat, 56, a threaded hole, 6, a drill rod, 7, a reducing section, 8, a first elastomer, 9, a supporting seat, 10, a bearing seat, 11, a roller, 12, a sleeve, 121, a limiting piece, 122, a connecting lug plate, 13 and a second elastomer.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples:
Example 1:
As shown in fig. 1 to 7, a drilling assembly for exploration and sampling of a foundation of construction engineering comprises a drill bit assembly for drilling a stratum to obtain a exploratory hole, a sleeve 1 for being embedded in the exploratory hole to protect the exploratory hole, a core barrel 4, a drill rod 6 connected to the upper end of the core barrel 4, a connecting barrel 5 and a sleeve 12;
the lower end of the connecting cylinder 5 is provided with a connecting thread for connecting the connecting cylinder 5 with the upper end of the sleeve 1 in a threaded manner, and the upper end of the connecting cylinder 5 is provided with a first elastomer 8;
the side wall of the sleeve 12 is provided with a roller 11, the axial direction of the roller 11 is perpendicular to the axial direction of the sleeve 12, the sleeve 12 is used for being sleeved on the outer side of the drill rod 6, and the sleeve 12 is provided with a limiting piece 121 for preventing the sleeve 12 from rotating around the drill rod 6;
when the sleeve 12 is mounted on the drill rod 6, the limiting piece 121 prevents the sleeve 12 from rotating around the drill rod 6, the sleeve 12 can slide along the axial direction of the drill rod 6, and the tread of the roller 11 is supported on the outer surface of the drill rod 6;
the bottom of the sleeve 12 is also provided with a supporting seat 9, and the sleeve 12 can slide along the drill rod under the action of gravity until the supporting seat 9 is supported on the first elastic body 8;
The top side of the sleeve 12 is also connected with a second elastomer 13 located above the sleeve 12.
In the prior art, when drilling and sampling for geological exploration of construction engineering are performed by using a drill bit assembly for a core drill bit, when the drill bit assembly is applied to broken strata of sandy strata with pebbles and broken stones and other components, a casing pipe 1 with a collapse prevention protection function of a exploratory hole is embedded in the formed exploratory hole by using a hanging hammer, and then the formed exploratory hole is further drilled under the protection of the casing pipe 1. However, due to the collapse which has occurred, hard foreign substances such as pebbles or other types of crushed stone can enter the inside of the casing 1 during the insertion process, which can be partially discharged by flushing water with the aid of the drill rod 6 drill bit assembly, which is not guaranteed to be able to be completely discharged, and the casing 1 is generally kept in its original position when the borehole is drilled further under the protection of the casing 1, while the drill bit assembly comprises a coring barrel 4 and a drill rod adapter 2, the longer coring barrel 4 being up to several meters, the drill rod adapter 2 upper end being of a size generally smaller than the size of the coring barrel 4, a diameter-changing section 7 on the drill bit assembly being formed at the lower end of the drill rod adapter 2, which type of drill bit assembly, when used for drilling loose geological structures with pebbles or other crushed stone, if the diameter-changing section 7 is extended with respect to the casing 1 during the downward movement, a broken stone accumulation area 3 is formed between the lower end of the casing 1 and the variable diameter section 7, when the drill bit assembly needs to be lifted to sample substances in the coring barrel 4 on the ground, broken stone deposited in the area under the action of long-time stirring and collapse can not normally lift the drill bit assembly from the exploratory hole, so that drilling construction faults occur, for example, when a core tube integrated with the drill bit is used as the drill bit assembly or the drill bit assembly with the lower end being a coring bit and the upper end being a core tube, when the drill bit assembly needs to be lifted to extract rock and soil samples from the coring barrel 4, broken stone deposited above the broken stone accumulation area 3 is blocked by the lower end of the casing 1 to prevent the drill bit assembly from being lifted, such as violent lifting, even the casing 1 is lifted from the exploratory hole together with the drill bit assembly, the exploratory hole has great difficulty, and the exploratory hole has great hole collapse risk after the casing 1 is lifted, resulting in rejection of the formed probe hole.
Aiming at the problems, a construction scheme special for sampling different strata of geological exploration of constructional engineering is provided, which comprises the following concrete steps: in a rock and soil sampling stage in the drilling process, for a probe hole which is easy to collapse, a sleeve 1 is utilized, the sleeve 1 is inlaid in the formed probe hole to avoid the probe hole collapse, a drill bit assembly with a core barrel 4 is adopted for drilling the probe hole, the drill bit assembly penetrates through the sleeve 1, the drill bit assembly rotates under the action of a motor or an oil extraction machine on a drill rod 6, the drill bit assembly further digs the probe hole under the action of a hydraulic mechanism, and the core barrel 4 collects stratum rock samples and soil samples in the drilling process; in order to avoid that the drill bit assembly cannot be lifted later in the process of the drill bit assembly due to excessive downward penetration of the core barrel 4 relative to the casing 1 to form the crushed stone accumulation area 3, the drill bit assembly defines the maximum downward penetration of the drill bit assembly through the supporting member during the downward penetration relative to the casing 1, when the maximum downward penetration is reached, the drill bit assembly is supported on the casing 1 through the supporting member, the upper end of the core barrel 4 is positioned in the casing 1, it is easy to realize that an inner supporting member is fixed on the inner side of the casing 1, an outer supporting member is fixed on the drill rod joint 2 above the core barrel 4 or the outer side of the drill rod 6, of course, the inner supporting member should be sized to allow the core barrel 4 to extend from the casing 1, since during the exploration drilling, the drill rod 6 and the casing 1 usually need to be lengthened a plurality of times, and the core barrel 4 and the drill bit portion at the lower end of the drill bit assembly are suitable for drilling at different depths, it is therefore preferable to fix the inner support member to the lowermost sleeve 1 and the outer support member to the drill pipe 6, either in the structure of the drill pipe 6 or the lowermost drill pipe 6, and when this is done, if the core barrel 4 and the drill bit are not replaced or the same core barrel 4 and drill bit are reused in different drilling stages, lengthening the drill pipe 6 and lengthening the sleeve 1 will not result in the need to reconfigure the support member, which although solving the problem of excessive lowering of the core barrel 4, it is inconvenient to provide means for monitoring the support condition of the inner support member to the outer support member inside the sleeve 1, and at the same time, the drill pipe 6 is also lifted and lowered (not pulled out) under the action of the driving mechanism during operation, and the drilling speed is relatively slow when the bottom is harder, meanwhile, if the sleeve 1 is not clamped in the drilling process, the sleeve 1 can fall down automatically, and based on the above, the scheme provides a drilling assembly suitable for geological exploration sampling, and is particularly suitable for the working condition that the core barrel 4 needs to be drawn out repeatedly in the sampling stage.
It will be readily appreciated that the associated structure associated with the sleeve 12 has a certain effect on the fluid escaping from the casing 1, due to the flushing water, mud or blowout which may occur during the drilling process, and that the associated components of the drilling assembly of the present embodiment may be used in a complete set, without the need to fix the sleeve 12, the support seat 9, etc. to the drill rod 6 all the time during the whole process of performing the exploration probe drilling. The specific principle of the scheme is as follows: the sleeve 12 rotates synchronously with the drill rod 6 through the action of the limiting piece 121, the connecting barrel 5 is fixed at the upper end of the sleeve 1 through connecting threads, during the process of exploring and lifting the drill rod 6 by the drill bit assembly, the drill rod 6 moves relative to the sleeve 1 along the axis of the sleeve 1, at the moment, the sleeve 12 enables the supporting seat 9 to be supported on the first elastic body 8 under the action of gravity, so that the drill rod 6 moves relative to the sleeve 12 when the axis moves, at the moment, the friction force of the side wall of the drill rod 6 to the wheel surface of the roller 11 forces the roller 11 to roll, after the drill bit assembly is supported on the sleeve 1, the drill bit assembly cannot further explore relative to the sleeve 1, at the moment, the rolling condition of the roller 11 changes, in the process of exploratory boring is identified through manual observation or by utilizing the monitoring module, when the rotating quantity of the supporting seat 9 supported on the first elastic body 8 and the roller 11 in the set time is smaller than the set rotating quantity, at the moment, the drill bit assembly is judged to reach the maximum rock-down quantity, at the moment, the driving of the drill rod 6 should be stopped to avoid damaging the supporting part, at the moment, the drill bit assembly is lifted, and the sleeve 4 is further, or the sampling depth of the exploratory boring sample is further embedded in the sleeve 1, and the exploratory sample is further depth is collected.
In summary, this scheme provides an auxiliary stay part and uses according to the drill bit subassembly structural feature that has core section of thick bamboo 4 and to the operating characteristics of drill bit subassembly, specifically monitors drilling rod 6 through the roll characteristic monitoring gyro wheel 11 and descend the volume of surveying for sleeve pipe 1, avoids taking core section of thick bamboo 4 too much and moving down and causing core section of thick bamboo 4 jam in the in-process that adopts core section of thick bamboo 4 to take exploration and sampling to reduce the technical scheme of core section of thick bamboo 4 jam fault rate purpose.
For possible blowout problems, the solution is configured to further include a first elastomer 8 and a second elastomer 13, where the second elastomer 13 is configured to implement: under the impact of the fluid vigorously sprayed out of the casing pipe 1, the supporting seat 9 and the sleeve 12 can be separated from the first elastic body 8 to move upwards, and the supporting seat and the sleeve can strike on a driving mechanism for driving the drill rod 6 to rotate, when the problem occurs, the second elastic body 13 can relieve the striking force of related parts to achieve the purpose of protecting the related parts; when blowout disappears or the impact force is reduced, the supporting seat 9 and the sleeve 12 structure fall back to be supported on the connecting cylinder 5, and the first elastic body 8 can relieve the impact force of the falling contact of related parts so as to achieve the purpose of protecting the related parts.
The first elastomer 8 provided also has the following characteristics: in the working process of the drilling assembly, the drill rod 6 generally has obvious vibration, and the sleeve 1 rotates synchronously with the drill rod 6, so that the vibration can be transmitted to the supporting seat 9, and the supporting of the supporting seat 9 by the first elastomer 8 is flexible, so that the impact strength of a relevant acting surface can be effectively reduced by the first elastomer 8; when the support seat 9 rotates synchronously with the sleeve 12, the support seat 9 can generate a certain jump under the action of the first elastic body 8 due to soft contact, so that the abrasion speed of the relevant acting surface can be effectively reduced.
The limiting member 121 is provided with the following features: the roller 11 only needs to rotate around the wheel axle, and meanwhile, the roller 11 does not need to bear large sideslip force, so that the roller 11 is protected and the structural design is simplified.
In the structural system, the fluid sprayed out of the sleeve 1 is not easy to directly act on the roller, and the monitoring module can be protected by observing the rolling of the roller 11. Further, the monitoring module may be fixed to the sleeve 12, and the monitoring signal is transmitted to an external receiving device through a wireless signal.
Further, the maximum impact force possibly received by the first elastic body 8 in the use process is smaller than the maximum impact force possibly received by the second elastic body 13 in the use process, and the first elastic body 8 adopts a solid rubber column; when the second elastic body 13 is of a non-closed annular cylinder structure, a rubber column with metal springs embedded therein is adopted, the metal springs are arranged in a wavy line, the lower ends of the metal springs are fixed on the sleeve 12, the upper ends of the metal springs are embedded in rubber, and a plurality of metal springs are arranged at intervals along the circumferential direction of the sleeve 12; when the second elastic body 13 is in a closed annular cylinder structure, the metal spring adopts a coil spring with the lower end fixed with the sleeve 12 and the upper end embedded in rubber.
Further, to reduce the resistance of the sleeve 12 to movement relative to the drill rod 6, the inner wall of the sleeve 12 is spaced from the outer side of the drill rod 6 by rollers 11.
Further, for round drill rods 6, the sides of the drill rods 6 are typically provided with grooves extending along the axis of the drill rods 6, for this type of drill rods 6, the restriction 121 is a ridge on the inner wall of the sleeve 12, into which groove the ridge is inserted to allow the sleeve 12 to rotate in synchronism with the drill rods 6; for square drill rods 6, the square sleeve 12 and the rollers 11 can be used as the limiting members 121 to prevent the sleeve 12 from boring holes in the drill rod 6 synchronously, but a better implementation manner is to provide a plurality of rollers 11, wherein the tread surfaces of the rollers 11 act on different sides of the drill rod 6, so as to achieve the purpose of reducing lateral shaking of the sleeve 12 to protect the tread surfaces of the rollers 11.
Example 2:
this example was further refined on the basis of example 1:
For the problem of influencing the ejection of the fluid at the upper end of the casing 1, as only the first elastic body 8 is required to be arranged on the connecting cylinder 5, the influence of the structure of the connecting cylinder 5 on the ejection of the fluid is small, in the whole drilling process, when the roller 11 is not required or is required to monitor the downward detection amount of the drill rod 6 relative to the casing 1, in order to facilitate the disassembly and assembly of the sleeve 12, the supporting seat 9 and the second elastic body 13 on the drill rod 6, the sleeve 12 is a spliced structure comprising two semi-rings, the two sides of each semi-ring are fixedly provided with the connecting lug plates 122, and the two semi-rings are connected with each other through the connecting bolts arranged on the connecting lug plates 122;
The supporting seat 9 comprises two seat bodies, the bottom of each semi-ring is fixed with one seat body, after the sleeve 12 is fixed into a closed annular structure through a connecting bolt, the two seat bodies form a closed plate ring structure, and the bottom surface of the plate ring structure is perpendicular to the axis of the drill rod 6;
The upper end of each half ring is fixed with a second elastic body 13. When adopting this scheme, when needing to install sleeve 12 isotructure, dismantle connecting bolt and make two semi-rings mutually separate, then follow the side cladding of drilling rod 6 on a pair of opposite sides of each semi-ring, then fix two semi-rings through connecting otic placode 122, can establish relevant structure cover on drilling rod 6, the sleeve 12 of dismantling also can accomplish through the opposite process, need not to install sleeve 12, supporting seat 9 and second elastomer 13 or accomplish the dismantlement of these parts on the drilling rod 6 through the upper end of drilling rod 6 like this. It is easy to understand that the bottom surface of the plate ring structure is a contact surface for contacting with the first elastic body 8, and when a plurality of supporting points located on a plane perpendicular to the axis of the drill rod 6 are provided through the first elastic body 8, the sleeve 12 and other structures have better stability in the working process. The second elastic body 13 is fixed at the upper end of each half ring to enable the second elastic body 13 to better relieve impact force of related components in multiple directions.
Further, in the drilling assembly, the supporting seat 9 is better supported on the first elastic body 8 and is influenced by the fluid sprayed out by the sleeve 1, so that a balancing weight installation area can be arranged on the upper end surface of the supporting seat 9, and the situation that the supporting seat 9, the sleeve 12 and the second elastic body 13 cannot be well supported on the first elastic body 8 under the condition of stronger blowout is avoided.
Example 3:
this example was further refined on the basis of example 1:
Because the upper end of the sleeve 1 is required to have fluid overflow capability under normal working conditions, in order to avoid the support seat 9 from separating from the first elastic body 8 for a long time and to avoid the first elastic body 8 from falling off under fluid flushing, the number of the first elastic bodies 8 is multiple, the first elastic bodies 8 are distributed at intervals along the circumferential direction of the connecting cylinder 5, and the lower end of the first elastic body 8 is fixedly connected with the connecting cylinder 5. In this scheme, a fluid discharge channel can be formed between the first elastic bodies 8, and the connecting cylinder 5 is fixedly connected with the first elastic bodies 8, i.e. used for preventing the first elastic bodies 8 from falling off under fluid flushing.
Example 4:
This example was further refined on the basis of example 2:
In order to facilitate replacement of the first elastic body 8 or disassembly and assembly of the first elastic body 8, the connecting cylinder 5 comprises a cylinder body 51 with an annular structure, the connecting screw thread is positioned at the lower end of the cylinder body 51, and a first structure 53 is arranged at the upper end of the cylinder body 51;
The connecting cylinder 5 further comprises an arc-shaped rod 52, the radius of the arc-shaped rod 52 is the same as that of the cylinder 51, the length of the arc-shaped rod 52 is less than or equal to one half of the circumference of the cylinder 51, and the lower end of the arc-shaped rod 52 is provided with a second structure 54;
One of the first structure 53 and the second structure 54 is a protrusion, and the other is a groove, into which the protrusion can be embedded; one of the cylinder 51 and the arc-shaped rod 52, which is provided with the groove, is provided with a threaded hole 56, one end of the threaded hole 56 is positioned on the outer surface of the one, and the other end of the threaded hole intersects with the side wall of the groove; when the protrusions are embedded in the grooves, the threaded holes 56 are used for installing locking bolts for locking the barrel 51 and the arc-shaped rod 52 to each other;
The upper end of the arc-shaped rod 52 is provided with a fixing seat 55, and the bottom of the first elastic body 8 is fixed on the fixing seat 55. In this scheme, set up connecting cylinder 5 to barrel 51 and arc pole 52 including dismantling the connection to set up fixing base 55 in order to fix first elastomer 8 on arc pole 52, utilize locking bolt installation barrel 51 and arc pole 52 to lock each other after protruding embedding recess, can accomplish barrel 51 and arc pole 52 mutual separation after the locking bolt of slackening. The setting aim of this scheme is: when the first elastic body 8 is damaged or the first elastic body 8 needs to be connected or disconnected on the connecting cylinder 5, the arc-shaped rod 52 and the first elastic body 8 are installed on the cylinder 51 after the locking bolt is installed by embedding the protrusion into the groove; by loosening the locking bolt and then separating the arc rod 52 from the cylinder 51 and then separating the arc rod 52 and the first elastic body 8 from the cylinder 51, the structural characteristics of the scheme include that the above operation is implemented and is not affected by the drill rod 6, and meanwhile, the cylinder 51 which is kept on the sleeve 12 for a long time is equivalent to the common sleeve 1 series structure, and the sleeve 1 is not affected to discharge fluid. However, when the sleeve 1 is lengthened, it is necessary to separate the cylinder 51 and then lengthen the sleeve 1 and attach the cylinder 51 to a new upper end sleeve 1.
Example 5:
this example was further refined on the basis of example 1:
When the supporting seat 9 rotates along with the sleeve 12, sliding friction exists between the first elastic body 8 and the supporting seat 9, especially, when stone particles exist in fluid discharged by the sleeve 1, the damage to the upper end face of the first elastic body 8 and the lower end face of the supporting seat 9 is larger, and in order to protect related components, the connection relationship between the sleeve 12 and the supporting seat 9 is rotatable connection, and the rotatable connection is that: the sleeve 12 is rotatable about the axis of the sleeve 12 independently of the support seat 9. In this scheme, sleeve 12 rotates for supporting seat 9 in step with drilling rod 6, can effectively reduce the damage to first elastomer 8 and supporting seat 9. Preferably, the rotatable connection is implemented in the following manner: the drilling machine further comprises a bearing seat 10 provided with a central hole, wherein a rolling bearing is arranged in the bearing seat 10, the inner ring of the rolling bearing is exposed in the central hole, and the bearing seat 10 is sleeved on the outer side of the drill rod 6 through the central hole;
the lower end of the sleeve 12 is fixed in the inner ring;
the supporting seat 9 is fixedly connected with the bearing seat 10. In the scheme, the outer ring of the rolling bearing is in interference connection with the bearing seat 10, the inner ring of the rolling bearing is in interference connection with the sleeve 12, and the rolling bearing with the space rings on two sides of the rolling body is adopted, so that the service life of the rolling bearing is prolonged. By adopting the scheme, the sleeve 12 can rotate independently of the bearing seat 10 and synchronously rotate with the drill rod 6, and meanwhile, sliding friction does not occur at the upper end position of the first elastic body 8.
Example 6:
this example was further refined on the basis of example 1:
In order to isolate the sleeve 12 from the drill rod 6 by using a plurality of rollers 11, and simultaneously, the drill rod 6 is provided with the rollers 11 which are contacted with the side surface of the drill rod 6 as far as possible when vibrating, so that friction force between the rollers 11 and the drill rod 6 is used for monitoring whether the sleeve 1 can be further detected downwards, and the rollers 11 are a plurality and are distributed at intervals along the circumferential direction of the sleeve 12;
each roller 11 is a rubber wheel surface, and when the sleeve 12 is installed on the drill rod 6, each roller 11 is restrained to generate elastic compression deformation for the rubber wheel surface. In this scheme, the contact state of gyro wheel 11 and drilling rod 6 under vibration operating mode not only is favorable to keeping to be compressed rubber tread, simultaneously, when drilling rod 6 has relative displacement with sleeve 12 for gyro wheel 11 obtains sufficient frictional force more easily in order to embody rolling state.
Example 7:
this example was further refined on the basis of example 1:
in addition to monitoring the contact of the drill bit assembly with the casing 1, a first vibration monitoring sensor for mounting on the sleeve 12, and a second vibration monitoring sensor for mounting on the connection barrel 5;
The device further comprises a data processing module, wherein the data processing module receives detection data of the first vibration monitoring sensor and the second vibration monitoring sensor, and judges the vibration characteristic difference of the sleeve 12 and the connecting cylinder 5 according to the detection data. When the vibration on the drill bit assembly is transmitted to the sleeve 1 through the rigid supporting component, the vibration on the drill bit assembly is transmitted to the sleeve 1 through the first elastic body 8, the difference of vibration intensity between the sleeve 1 and the sleeve 12 is obvious, in the scheme, the detection signals of the first vibration monitoring sensor and the second vibration monitoring sensor can be utilized, and the difference of vibration characteristics of the sleeve 1 and the sleeve 12 can be analyzed by utilizing the data processing module, so that the scheme is provided with a drill rod 6 downward detection quantity monitoring auxiliary scheme except for rolling detection of the roller 11.
The further application is as follows: when the monitoring module is adopted to realize rolling monitoring of the roller 11, if the first vibration monitoring sensor and the second vibration monitoring sensor detect that the drill bit assembly does not work, the sleeve 12 and the drill rod 6 judged by the monitoring module do not have relative movement at the moment and are not used as a judging basis for the maximum downward detection amount of the drill bit assembly.
Example 8:
this example was further refined on the basis of example 1:
in order to realize the automatic rolling recognition of the roller 11, the automatic rolling recognition device further comprises a monitoring module for monitoring the rolling condition of the roller 11.
Example 9:
The embodiment provides a drilling method for exploration and sampling of a foundation of a building engineering on the basis of embodiment 1, wherein the method comprises a rock and soil sampling step in the drilling process, and the rock and soil sampling step is realized by adopting the drilling assembly in embodiment 1, wherein the drilling assembly is a drilling device;
The casing pipe 1 is embedded in an already formed exploratory hole, the drill bit assembly penetrates through the casing pipe 1, the drill bit assembly rotates under the action of the driving mechanism on the drill rod 6, the drill bit assembly further digs into the exploratory hole under the action of dead weight or the driving mechanism, and the coring barrel 4 is used for rock mass sampling;
In the process of downward exploration of the drill bit assembly relative to the casing pipe 1, limiting the maximum downward exploration amount of the drill bit assembly through the supporting component, and when the maximum downward exploration amount is reached, supporting the drill bit assembly on the casing pipe 1 through the supporting component, wherein the upper end of the coring barrel 4 is positioned in the casing pipe 1;
in the process of further tunneling the exploratory hole, the rolling condition of the roller 11 is identified through a manual observation or monitoring module, when the supporting seat 9 is supported on the first elastic body 8 and the rotation amount of the roller 11 in the set time is smaller than the set rotation amount, the drill bit assembly is judged to reach the maximum downward probing amount, and at the moment, the drill bit assembly is pulled out and the embedding depth of the sleeve pipe 1 is sampled or further deepened from the core barrel 4, and the exploratory hole is further tunneling.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and it is not intended that the invention be limited to these descriptions. Other embodiments of the invention, which are apparent to those skilled in the art to which the invention pertains without departing from its technical scope, shall be covered by the protection scope of the invention.
Claims (10)
1. A drilling assembly for exploration and sampling of a foundation of construction engineering, comprising a drill bit assembly for drilling a stratum to obtain a probe hole, and further comprising a sleeve (1) for being embedded in the probe hole to protect the probe hole, wherein the drill bit assembly comprises a core barrel (4) and a drill rod (6) connected to the upper end of the core barrel (4), and is characterized by further comprising a connecting barrel (5) and a sleeve (12);
The lower end of the connecting cylinder (5) is provided with a connecting thread for connecting the connecting cylinder (5) with the upper end of the sleeve (1) in a threaded manner, and the upper end of the connecting cylinder (5) is provided with a first elastomer (8);
The side wall of the sleeve (12) is provided with a roller (11), the axial direction of the roller (11) is perpendicular to the axial direction of the sleeve (12), the sleeve (12) is used for being sleeved on the outer side of the drill rod (6), and the sleeve (12) is provided with a limiting piece (121) for preventing the sleeve (12) from rotating around the drill rod (6);
When the sleeve (12) is mounted on the drill rod (6), the limiting piece (121) prevents the sleeve (12) from rotating around the drill rod (6), the sleeve (12) can slide along the axial direction of the drill rod (6), and the wheel surface of the roller (11) is supported on the outer surface of the drill rod (6);
the bottom of the sleeve (12) is also provided with a supporting seat (9), and the sleeve (12) can slide along the drill rod (6) under the action of gravity until the supporting seat (9) is supported on the first elastic body (8);
the top side of the sleeve (12) is also connected with a second elastomer (13) positioned above the sleeve (12).
2. The drilling assembly for exploration and sampling of a foundation of a building engineering according to claim 1, wherein the sleeve (12) is of a spliced structure comprising two half rings, two sides of each half ring are fixedly provided with connecting lug plates (122), and the two half rings are connected with each other through connecting bolts arranged on the connecting lug plates (122);
The supporting seat (9) comprises two seat bodies, the bottom of each semi-ring is fixedly provided with one seat body, after the sleeve (12) is fixed into a closed annular structure through a connecting bolt, the two seat bodies form a closed plate ring structure, and the bottom surface of the plate ring structure is perpendicular to the axis of the drill rod (6);
the upper end of each semi-ring is fixed with a second elastic body (13).
3. Drilling assembly for exploration and sampling of building engineering foundations according to claim 1 or 2, characterized in that the number of the first elastic bodies (8) is a plurality of, the first elastic bodies (8) are distributed at intervals along the circumferential direction of the connecting cylinder (5), and the lower end of the first elastic bodies (8) is fixedly connected with the connecting cylinder (5).
4. A drilling assembly for exploration sampling of the foundation of construction works according to claim 2, characterized in that the connecting cylinder (5) comprises a cylinder body (51) with annular structure, the connecting screw thread is positioned at the lower end of the cylinder body (51), and the upper end of the cylinder body (51) is provided with a first structure (53);
The connecting cylinder (5) further comprises an arc-shaped rod (52), the radius of the arc-shaped rod (52) is the same as that of the cylinder body (51), the length of the arc-shaped rod (52) is less than or equal to one half of the circumference of the cylinder body (51), and a second structure (54) is arranged at the lower end of the arc-shaped rod (52);
One of the first structure (53) and the second structure (54) is a protrusion, the other is a recess, the protrusion can be embedded in the recess; one of the cylinder body (51) and the arc-shaped rod (52) provided with the groove is provided with a threaded hole (56), one end of the threaded hole (56) is positioned on the outer surface of the one, and the other end of the threaded hole is intersected with the side wall of the groove; when the protrusion is embedded into the groove, the threaded hole (56) is used for installing a locking bolt for realizing the mutual locking of the cylinder (51) and the arc-shaped rod (52);
The upper end of the arc-shaped rod (52) is provided with a fixing seat (55), and the bottom of the first elastic body (8) is fixed on the fixing seat (55).
5. Drilling assembly for exploration sampling of the foundation of construction work according to claim 1, characterized in that the connection of the sleeve (12) to the support seat (9) is a rotatable connection, which is: the sleeve (12) is rotatable about the axis of the sleeve (12) independently of the support (9).
6. The drilling assembly for exploration and sampling of a foundation of a building engineering according to claim 5, further comprising a bearing seat (10) provided with a central hole, wherein a rolling bearing is arranged in the bearing seat (10), an inner ring of the rolling bearing is exposed in the central hole, and the bearing seat (10) is sleeved outside a drill rod (6) through the central hole;
The lower end of the sleeve (12) is fixed in the inner ring;
The supporting seat (9) is fixedly connected with the bearing seat (10).
7. Drilling assembly for exploration sampling of the foundation of construction works according to claim 1, characterized in that the number of said rollers (11) is a plurality and are spaced apart along the circumferential direction of the sleeve (12);
each roller (11) is a rubber wheel surface, and after the sleeve (12) is installed on the drill rod (6), each roller (11) is restrained to generate elastic compression deformation for the rubber wheel surface.
8. A drilling assembly for the exploration sampling of the foundation of construction work according to claim 1, characterized in that it further comprises a first vibration monitoring sensor for mounting on the sleeve (12), and a second vibration monitoring sensor for mounting on the connection barrel (5);
the vibration detection device further comprises a data processing module, wherein the data processing module receives detection data of the first vibration monitoring sensor and the second vibration monitoring sensor, and judges the vibration characteristic difference of the sleeve (12) and the connecting cylinder (5) according to the detection data.
9. A drilling assembly for use in the exploration sampling of the foundation of construction work according to claim 1, further comprising a monitoring module for monitoring the rolling condition of the roller (11).
10. A drilling method for exploration and sampling of a foundation of a building engineering, characterized in that the method comprises a rock-soil sampling step in the drilling process, wherein the rock-soil sampling step is realized by adopting the drilling assembly as claimed in any one of claims 1 to 9;
The casing (1) is embedded in an already formed exploratory hole, the drill bit assembly penetrates through the casing (1), the drill bit assembly rotates under the action of the driving mechanism on the drill rod (6), the drill bit assembly further digs into the exploratory hole under the action of dead weight or the driving mechanism, and the coring barrel (4) is used for rock mass sampling;
The drill bit assembly is limited by the support component in the process of downward exploration relative to the casing (1), and when the maximum downward exploration is reached, the drill bit assembly is supported on the casing (1) by the support component, and the upper end of the coring barrel (4) is positioned in the casing (1);
In the process of further tunneling the exploratory hole, the rolling condition of the roller (11) is identified through a manual observation or monitoring module, when the supporting seat (9) is supported on the first elastic body (8) and the rotation amount of the roller (11) in the set time is smaller than the set rotation amount, the drill bit assembly is judged to reach the maximum downward exploration amount, and at the moment, the drill bit assembly is pulled out and the embedded depth of the sleeve (1) is sampled or further deepened from the coring barrel (4) and the exploratory hole is further tunneling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410384320.5A CN117966703B (en) | 2024-04-01 | 2024-04-01 | Drilling assembly and method for exploration and sampling of foundation of building engineering |
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| CN202410384320.5A CN117966703B (en) | 2024-04-01 | 2024-04-01 | Drilling assembly and method for exploration and sampling of foundation of building engineering |
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| CN117966703A true CN117966703A (en) | 2024-05-03 |
| CN117966703B CN117966703B (en) | 2024-06-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118166839A (en) * | 2024-05-13 | 2024-06-11 | 成都工业职业技术学院 | Underground pipe gallery structure seam plugging device and method |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1744247A1 (en) * | 1990-01-15 | 1992-06-30 | С.В.Буданов | Sampler |
| US6691779B1 (en) * | 1997-06-02 | 2004-02-17 | Schlumberger Technology Corporation | Wellbore antennae system and method |
| DE602005011562D1 (en) * | 2004-12-23 | 2009-01-22 | Black & Decker Inc | power tool |
| CN112225018A (en) * | 2020-09-22 | 2021-01-15 | 长江大学 | Drill collar device capable of accessing cable inside and method for accessing cable inside drill collar |
| CN113513255A (en) * | 2021-07-27 | 2021-10-19 | 福建岩土工程勘察研究院有限公司 | Core drill for deep-ice bedrock |
| CN214886812U (en) * | 2021-05-21 | 2021-11-26 | 广东城华工程咨询有限公司 | Drilling rig for geological survey |
| CN215169854U (en) * | 2021-06-11 | 2021-12-14 | 中国地质大学（武汉） | Coaxial coring device of casing protection formula level directional drilling engineering geological survey |
| CN115749602A (en) * | 2022-11-10 | 2023-03-07 | 中冶武勘工程技术有限公司 | Geological survey drilling equipment for improving perpendicularity of drill hole and drilling sampling method thereof |
| CN115929198A (en) * | 2022-12-27 | 2023-04-07 | 赵海军 | Measuring device for geological exploration |
| CN116147967A (en) * | 2022-12-29 | 2023-05-23 | 昆山金田农业科技有限公司 | Soil detection equipment and detection method for deep soil |
| CN116291420A (en) * | 2023-03-13 | 2023-06-23 | 临沂市自然资源和规划局 | Feedback early warning device for geological survey and application method thereof |
| CN116429483A (en) * | 2023-03-30 | 2023-07-14 | 江苏通标环保科技发展有限公司 | Soil environment investigation soil sample collection device |
| CN117027651A (en) * | 2023-06-30 | 2023-11-10 | 南京助天中科科技发展有限公司 | Drilling control system of drilling machine and deviation detection device of drilling control system |
| CN220339713U (en) * | 2023-07-13 | 2024-01-12 | 四川省地质调查院 | Drilling sampling device for geological mineral exploration |
| CN117536545A (en) * | 2023-11-08 | 2024-02-09 | 成都工业职业技术学院 | Rotary drilling rig for building foundation construction |
| US20240085279A1 (en) * | 2022-11-02 | 2024-03-14 | Shandong Normal University | Method for monitoring forestry microenvironment |
| CN117739783A (en) * | 2024-01-16 | 2024-03-22 | 中国电建集团城市规划设计研究院有限公司 | Rock-soil geological investigation depth measurement equipment and application method thereof |
-
2024
- 2024-04-01 CN CN202410384320.5A patent/CN117966703B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1744247A1 (en) * | 1990-01-15 | 1992-06-30 | С.В.Буданов | Sampler |
| US6691779B1 (en) * | 1997-06-02 | 2004-02-17 | Schlumberger Technology Corporation | Wellbore antennae system and method |
| DE602005011562D1 (en) * | 2004-12-23 | 2009-01-22 | Black & Decker Inc | power tool |
| CN112225018A (en) * | 2020-09-22 | 2021-01-15 | 长江大学 | Drill collar device capable of accessing cable inside and method for accessing cable inside drill collar |
| CN214886812U (en) * | 2021-05-21 | 2021-11-26 | 广东城华工程咨询有限公司 | Drilling rig for geological survey |
| CN215169854U (en) * | 2021-06-11 | 2021-12-14 | 中国地质大学（武汉） | Coaxial coring device of casing protection formula level directional drilling engineering geological survey |
| CN113513255A (en) * | 2021-07-27 | 2021-10-19 | 福建岩土工程勘察研究院有限公司 | Core drill for deep-ice bedrock |
| US20240085279A1 (en) * | 2022-11-02 | 2024-03-14 | Shandong Normal University | Method for monitoring forestry microenvironment |
| CN115749602A (en) * | 2022-11-10 | 2023-03-07 | 中冶武勘工程技术有限公司 | Geological survey drilling equipment for improving perpendicularity of drill hole and drilling sampling method thereof |
| CN115929198A (en) * | 2022-12-27 | 2023-04-07 | 赵海军 | Measuring device for geological exploration |
| CN116147967A (en) * | 2022-12-29 | 2023-05-23 | 昆山金田农业科技有限公司 | Soil detection equipment and detection method for deep soil |
| CN116291420A (en) * | 2023-03-13 | 2023-06-23 | 临沂市自然资源和规划局 | Feedback early warning device for geological survey and application method thereof |
| CN116429483A (en) * | 2023-03-30 | 2023-07-14 | 江苏通标环保科技发展有限公司 | Soil environment investigation soil sample collection device |
| CN117027651A (en) * | 2023-06-30 | 2023-11-10 | 南京助天中科科技发展有限公司 | Drilling control system of drilling machine and deviation detection device of drilling control system |
| CN220339713U (en) * | 2023-07-13 | 2024-01-12 | 四川省地质调查院 | Drilling sampling device for geological mineral exploration |
| CN117536545A (en) * | 2023-11-08 | 2024-02-09 | 成都工业职业技术学院 | Rotary drilling rig for building foundation construction |
| CN117739783A (en) * | 2024-01-16 | 2024-03-22 | 中国电建集团城市规划设计研究院有限公司 | Rock-soil geological investigation depth measurement equipment and application method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 尹中山，张光大，刘金辉，古志文，叶恒: "川南地区龙潭组煤系气藏特征及地球物理勘探方法", 《石油物探》, vol. 62, no. 1, 25 January 2023 (2023-01-25), pages 56 - 67 * |
| 耿济世: "构造煤水平井多级扩孔下钻进特性及围岩变形演化规律研究", 《中国博士学位论文全文数据库工程科技Ⅰ辑》, 15 April 2022 (2022-04-15), pages 021 - 9 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118166839A (en) * | 2024-05-13 | 2024-06-11 | 成都工业职业技术学院 | Underground pipe gallery structure seam plugging device and method |
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