CN113914783A - Dual-purpose engineering investigation water drilling platform and use method thereof - Google Patents
Dual-purpose engineering investigation water drilling platform and use method thereof Download PDFInfo
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- CN113914783A CN113914783A CN202111211679.5A CN202111211679A CN113914783A CN 113914783 A CN113914783 A CN 113914783A CN 202111211679 A CN202111211679 A CN 202111211679A CN 113914783 A CN113914783 A CN 113914783A
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- 238000005553 drilling Methods 0.000 title claims abstract description 139
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000011835 investigation Methods 0.000 title claims description 15
- 239000002002 slurry Substances 0.000 claims abstract description 18
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- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/02—Supports for the drilling machine, e.g. derricks or masts specially adapted for underwater drilling
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- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/001—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor specially adapted for underwater drilling
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Abstract
The invention belongs to the technical field of geological exploration, and discloses a dual-purpose engineering exploration water drilling platform and a using method thereof, wherein the dual-purpose engineering exploration water drilling platform comprises a drilling machine, a mud pump, corresponding materials, an environment-friendly mud circulating pool and a groove, wherein the drilling machine, the mud pump and the corresponding materials are positioned on the upper side of the platform; a drilling hole is formed in the middle of the platform close to the front, and a drilling machine, a slurry pump, corresponding materials, an environment-friendly slurry circulating pool and a groove are sequentially arranged at the drilling hole backwards along the central axis direction of the platform; four buoyancy adjusting cylinders and web-shaped supporting legs are welded at four corners of the platform, and a hydraulic oil cylinder is connected with the web-shaped supporting legs; and a ship body or a floating body is fixed in the middle of the lower side of the platform. The invention overcomes the difficulty that the general floating platform on water can not carry out drilling under the near-shore environment that the water level is shallow and the draught of the platform can not be met; 2. the structure wholeness is strong, does not have the heaviness of general framework type platform, and transportation, installation, adjustment, maintenance and operation are all very nimble, and it is high to creep into work efficiency.
Description
Technical Field
The invention belongs to the technical field of geological exploration, and particularly relates to a dual-purpose engineering exploration overwater drilling platform and a using method thereof.
Background
At present: for engineering purposes and geological science research targets, when water conservancy and hydropower project engineering construction, hydrogeological investigation, road and bridge construction and the like are developed in water areas such as rivers, lakes and seas, drilling and sampling work needs to be carried out on riverbed cover layer deposits and underburden under the water surface to obtain geological material data, so that scientific bases are provided for engineering design, construction and hydrogeological investigation.
In the drilling and coring operation, in order to ensure that underground material data can be accurately and fully obtained, the position of a drilled ground surface opening needs to be accurately measured and positioned; the geological condition below the ground is invisible, the coring operation from the ground surface to the underground deep position has greater risk, in the operation, a drill bit and a drill rod for coring form a rod piece whole body with a large slenderness ratio in appearance, the rod piece whole body is subjected to the action of complex forces from the bottom and the wall of a drilling hole to generate vibration with different degrees, and at the moment, the stability and the vertical drilling of a ground surface drilling machine are required to be ensured so as to avoid accidents such as thread failure, drill rod breakage and the like; in addition, generally, mud is used to flush the borehole and carry away rock debris generated during the drilling and pore-forming process, and the mud waste liquid needs to be recycled and stored properly due to the requirement of green investigation.
In the above-mentioned drilling operation, the drilling machine and the riverbed covering layer are isolated by the water body, the drilling hole site is usually far from the bank, and in order to meet the above-mentioned requirements of accurately measuring the position of the positioning hole and keeping the drilling machine stable and green reconnaissance, the drilling machine and related equipment are usually mounted on an above-water floating platform, or supported at the bottom by a support, a truss type platform is mounted, and the drilling machine is erected and separated from the water surface. Because the above-water drilling platform is impacted by water flow, frictional resistance of water and wind, and the platform space is limited, the platform should satisfy the following conditions:
(1) the rig should be sufficiently buoyant to bear the weight of the rig, drilling tools and their associated equipment. And to maintain a good draft of the platform.
(2) The drilling platform should have good stability, be convenient for when the drilling keep the stability of rig, guarantee the angle of drilling.
(3) The drilling platform should have good mobility, be convenient for drilling platform's mobile location.
(4) The drilling platform should have sufficient strength to avoid damage due to unavoidable collisions such as reef touch.
(5) The drilling platform needs to have enough space to facilitate drilling construction.
(6) The drilling platform has reasonable structure, strong integrity, convenient assembly and disassembly and convenient later transportation.
From a practical point of view, water drilling has the following characteristics:
(1) in the construction process, the above-water drilling platform is easily moved or collided under the influence of natural conditions such as water level, flow velocity, season, weather, stormy waves, tidal water, geology and the like and the influence of sailing ships, so that the sleeve is bent and broken, and sometimes threatened by flood.
(3) A safety drilling facility equipped on the water surface uses a ship or a floating tool having a certain area load as an above-water drilling platform.
(2) Is more complex in terms of equipment or operation than drilling on land. Such as anchoring, positioning, anchoring and casing running of a drilling platform are influenced by deepwater torrent and water level fluctuation.
(4) In order to isolate the influence of flowing water on drilling work, protective sleeves with certain depth are firstly put into the hole sites, and the protective sleeves are guaranteed to be put into the bottom of a river along the vertical direction, so that the process is complex and heavy.
(5) The water for drilling on water is rich and convenient.
The wooden ship drilling platform is generally applied to river sections or rivers with low flow velocity, and can also be used for water drilling in sea areas which are close to offshore and have water depths within 30 m. Its advantages are on-site renting wooden ship, easy installation and simple arrangement of drilling site. Because of its good stability, catamarans are generally used.
In general, constructors live on the land, so that the load of crew and life materials on the drilling ship do not need to be considered. The carrying capacity of the wood drilling ship is selected according to factors such as flow velocity, water flow impact force, wind wave height, drilling mechanical equipment, pipe quality and the like, and when the flow velocity is less than 3m/s in a general river, the carrying capacity of a single ship is 25-40 t, the length is 20m, and the width is about 3.5 m. Two ships are assembled into a catamaran. If the flow velocity is large or the construction is carried out in offshore areas, two single ships of 50-60 t can be assembled into a catamaran. The ship length is 30m, and the width is 8-9 m. The load capacity of the catamaran is 100-120 t.
When the drilling ship is installed, round wood or square wood can be used, and I-shaped steel can also be used for keeping the firmness of the catamaran. The weight, length and width of the two ships are approximately equal, the ship types are the same or similar, and the structure is firm. The two wooden boats are arranged in parallel, and the middle of the wooden boats is separated by about 1 m. 10-12 round timbers with the diameter of 15-20 cm or square timbers with the section of 200mmX200mm are transversely arranged on the surface of the bin. The distance between the round wood and the square wood is 0.8-1.0 m. And the two wooden boats are firmly connected in parallel to form a whole by hooping the boat bottom with a steel wire rope with the diameter of 9.5 mm. The disadvantages of a wooden vessel rig are as follows:
(1) the possibility of sinking of the ship due to leakage or excessive accumulated water is that water pumping equipment is required to be equipped to drain the accumulated water in the cabin;
(2) sometimes, due to the factors of insufficient water depth or tide, the drilling ship cannot move under the influence of the draught level to cause a worker-engaging phenomenon, and drilling work cannot be carried out in a shallow water area which cannot meet the draught level of the ship;
(3) the assembly material and operation requirements of the ship working platform are high, and the special drilling cost is increased along with the time extension;
(4) seasickness is easily caused to the operators on the ship.
Oil drum type drilling platform
A series of oil drums with the same specification and model are spliced and fixed, an overwater floating platform with certain bearing capacity is formed by utilizing buoyancy of an empty drum, then machine bench is built above the oil drums, and corresponding equipment such as a drilling machine and a drilling tower is installed. The draught level is shallower than that of a ship, the method is suitable for shallow water areas, and the assembly operation is simple and convenient.
The disadvantages are that:
(1) the bearing capacity of the platform is reduced due to leakage of the oil drum, and potential safety hazards exist;
(2) the iron oil barrel can be corroded in seawater to cause strength reduction, the service time is not suitable to be too long, the repeated utilization rate is low, and the disposable cost is high;
(3) the bearing capacity and the safety coefficient are low, and the movement is difficult;
(4) the firmness is poor, and the safety is low when the water depth and the flow speed are large.
Strut type platform
A plurality of timber piles or steel support columns are vertically driven into a water bottom covering layer for a certain depth, and then a platform is built at the top or the middle proper position of each support column and used for installing a drilling machine and other related equipment. The platform is not easily influenced by water level change, wind waves and the like, the platform is stable, and the phenomenon of seasickness and the like cannot occur to operators.
The disadvantages are that:
(1) the working platform needs to be erected in water, and the operation is difficult;
(2) each drilling machine is generally additionally provided with a working platform for standby displacement of the drilling machine;
(3) when the number of the drill holes on the water is large, the working platform needs to carry out multiple component installation, disassembly and transportation, and the drilling machine also needs to be moved to be installed in place for multiple times;
(4) the auxiliary preparation work time of drilling is too long, the pure drilling time is reduced, and the drilling work efficiency is influenced;
(5) the special cost increases with the increase of the number of holes, and the economic benefit is restricted.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) the general floating platform on water has difficulty in drilling under the near-shore environment that the water level is shallow and the draught of the platform cannot be met;
(2) the mounting and dismounting of the strut type platform are difficult, and a large number of exploration holes cannot be efficiently constructed;
(3) the drilling platform has limited bearing capacity, the platform bearing capacity is designed after the total engineering load capacity needs to be estimated, the capacity of coping with the engineering emergency is limited, and certain risk exists;
(4) when the water level changes greatly, drilling is difficult to achieve;
(5) the drilling mud is discharged at will, causing environmental pollution;
(6) the pillar type platform needs will be squeezed into the submarine overburden certain degree of depth with the pillar, for the platform provides enough holding power, wastes time and energy, influences the engineering investigation progress.
(7) When the protective sleeve is hammered and tamped, the manual labor intensity of workers is high, and safety risks exist.
The difficulty in solving the above problems and defects is:
(1) under the near-shore environment that the water level is shallow and the draught of the platform cannot be met, the above-water drilling platform is various and simple in form and has no uniform form, and researchers of the drilling platform are too few;
(2) a water drilling platform which is adaptive to multiple areas and strong in adaptability is lacked;
(3) the invention overcomes the difficulty that the general floating platform on water can not carry out drilling under the near-shore environment that the water level is shallow and the draught of the platform can not be met;
the general framework type platform is heavy, and complex in transportation, installation, adjustment, maintenance and operation;
(4) the existing water floating platform cannot be directly applied to the near-shore shallow water sludge environment; the cost of strut platforms is far higher than that of water floating platforms.
The significance of solving the problems and the defects is as follows:
(1) the general floating platform on water has difficulty in drilling under the near-shore environment that the water level is shallow and the draught of the platform cannot be met;
(2) the mounting and dismounting of the strut type platform are difficult, and a large number of exploration holes cannot be efficiently constructed;
(3) the drilling platform has enough bearing capacity, can cope with engineering emergency conditions, and ensures the construction safety;
(4) the construction environment requirement when the water level change is large can be met;
(5) the adverse effect of environmental pollution caused by random discharge of drilling mud is avoided, so that the environment is protected;
(6) the auxiliary operation time is reduced, and the drilling efficiency is improved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a dual-purpose engineering investigation water drilling platform.
The invention is realized in this way, a dual-purpose engineering investigation water drilling platform comprises a drilling machine, a slurry pump, corresponding materials, an environment-friendly slurry circulating pool and a tank which are positioned on the upper side of the platform;
a drilling hole is formed in the middle of the platform close to the front, and a drilling machine, a slurry pump, corresponding materials, an environment-friendly slurry circulating pool and a groove are sequentially arranged at the drilling hole backwards along the central axis direction of the platform;
four buoyancy adjusting cylinders and web-shaped supporting legs are welded at four corners of the platform, and a hydraulic oil cylinder is connected with the web-shaped supporting legs;
and a ship body or a floating body is fixed in the middle of the lower side of the platform.
Furthermore, mooring bollards are arranged at the upper ends of the four corners of the platform, steel wire ropes are twisted on the mooring bollards, and the other ends of the steel wire ropes are connected with anchor chains and anchors and used for accurately positioning holes.
Further, the welding of platform downside has the connector, the welding of connector lower extreme has the hoop, a buoyancy is adjusted a section of thick bamboo and is fixed through the hoop.
Furthermore, the buoyancy adjusting cylinder is mostly immersed in water, the water level inside the buoyancy adjusting cylinder is pumped and adjusted by a water pump through a rubber tube, and the upper part of the buoyancy adjusting cylinder is provided with a hole.
Furthermore, the webbed landing leg is provided with a webbed base, the upper end of the webbed base is connected with the lower end of the hydraulic oil cylinder through a hinge ball joint, the bottom of the webbed base is hinged with 5 webbed palms, the webbed palms can freely swing up and down, and a ribbed check ring is arranged above the webbed palms.
Furthermore, the appearance of each web palm is an isosceles trapezoid, and the area is determined after reasonable specific pressure and the adhesion force to be overcome during pulling are calculated according to the actual load capacity and the physical and mechanical properties of a riverbed sludge covering layer.
Furthermore, the platform is rectangular, 10 meters long and 6.5 meters wide, and is long along the water flow direction and short in the direction perpendicular to the river bank.
Another object of the present invention is to provide a method for using a dual-purpose engineering investigation water drilling platform, which comprises:
towing the drilling platform to a target area by a towing ship and an anchor throwing ship, throwing the anchor at a proper position, and hinging the anchor with a mooring pile through a steel wire rope to reliably and accurately fix the position of a drilling hole;
a drilling machine descends a protective sleeve to a riverbed covering layer through a drilling hole, after the protective sleeve is lowered, drilling operation is started, a pump is started to convey slurry, environment-friendly slurry is adopted, the slurry is taken by water on site, the slurry returns to an overwater drilling platform after passing through a pipe cavity of a drill rod and an annular space in the hole, flows into a circulating pool and is discharged into the water after being treated;
when the water level changes greatly or is shallow, and normal drilling work is influenced, the webbed supporting legs are descended through the hydraulic oil cylinder, the webbed supporting legs are placed to the bottom of the riverbed, the webbed palms contact silt at the bottom of the riverbed and turn upwards, and the stop is realized when the webbed palms collide with the ribbed retaining ring; when the riverbed is not flat, the webbed supporting legs rotate through the spherical hinged joints, and the supporting force is transmitted to the supporting columns, so that the bearing force is effectively provided for the platform;
when the hole needs to be moved and the position needs to be changed, the hydraulic oil cylinder goes upwards, the web palm is pulled up at one side, the web palm overcomes the cohesive force of the palm and rotates and retracts around the hinged ball joint, so that the covering layer of the riverbed is separated, and the operation of the next hole position is facilitated.
Further, the method for inserting the protective sleeve comprises the following steps:
the buoyancy adjusting cylinder pumps water through the water pump, the water level inside the buoyancy adjusting cylinder descends, the buoyancy rises, the draught of the drilling platform is reduced, at the moment, a single sleeve is connected and then goes down to a riverbed covering layer, then the drilling machine clamps the sleeve, the water pump is used for delivering water to the buoyancy adjusting cylinder, the buoyancy is reduced, the drilling platform sinks, the protective sleeve is pressed into the covering layer in a static pressure mode, the process is repeated, and the protective sleeve is pressed into the target depth.
By combining all the technical schemes, the invention has the advantages and positive effects that:
1. the invention overcomes the difficulty that the general floating platform on water can not carry out drilling under the near-shore environment that the water level is shallow and the draught of the platform can not be met;
2. the structure integrity is strong, the structure is not heavy as a common framework type platform, the transportation, the installation, the adjustment, the maintenance and the operation are flexible, and the drilling work efficiency is high;
3. the bearing capacity of the platform can be spontaneously adjusted according to the actual load situation, and the platform is high in flexibility;
4. the device is suitable for the environment with large water level change;
5. the drilling mud is properly treated, and the water body is not polluted;
6. the duck web-shaped supporting legs can be well adsorbed on the bed of the muddy river and provide enough bearing capacity. The supporting column does not need to be driven into the underwater covering layer for a certain depth any more, the auxiliary working time of drilling is saved, and the efficiency is improved. Meanwhile, the area is flexibly determined, and the river bottom cohesive force required to be overcome is small by adopting single-side pulling.
7. The static force is pressed into the protective sleeve, so that the safety and the reliability are realized.
8. The invention is innovative in extending the environmental adaptability of the water floating platform, namely the platform can be continuously used in the near-shore sludge environment, namely, the invention is embodied in a dual-purpose mode, and belongs to the structural innovation. If the simulation is carried out, the balance analysis is mainly carried out on the duck web-shaped supporting legs of the platform, and the specific pressure is calculated; and analyzing the recovery principle of the web palm in a sludge environment and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a perspective view of a dual-purpose engineering survey water rig provided in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a dual-purpose engineering survey water rig provided by an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a buoyancy regulating cylinder according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a side of a dual-purpose engineering survey water rig provided by an embodiment of the present invention.
Fig. 5 is a schematic structural view of a webbed leg provided by an embodiment of the present invention.
In the figure: 1. a drilling machine; 2. slurry pumps and corresponding materials; 3. an environment-friendly slurry circulation tank and a tank; 4. drilling a hole; 5. a platform; 6. a hull or float; 7. a buoyancy adjusting cylinder; 8. mooring bollards; 9. a wire rope; 10. a hydraulic cylinder; 11. web-shaped support legs; 12. an iron hoop; 13. a hinge ball joint; 14. a ribbed retainer ring; 15. web palm; 16. a connector.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In view of the problems of the prior art, the present invention provides a dual-purpose engineering investigation water drilling platform, which is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the dual-purpose engineering exploration water drilling platform provided by the embodiment of the invention is rectangular, 10 meters long and 6.5 meters wide, and is long along the water flow direction and short in the direction vertical to the river bank. The drilling hole 4 is arranged in the middle of the platform and close to the front, and the drilling hole 4 is sequentially provided with a drilling machine 1, a mud pump, a corresponding material 2 and an environment-friendly mud circulating pool and groove 3 backwards along the central axis direction of the platform, and the drilling machine, the mud pump, the corresponding material 2 and the environment-friendly mud circulating pool and groove are surface equipment required by drilling sampling. Mooring bollards 8 are arranged in the four corners of the platform, steel wire ropes 9 are twisted on the mooring bollards, and the other ends of the steel wire ropes are connected with anchor chains and anchors and used for accurately positioning holes. Four buoyancy adjusting cylinders 7 and web-shaped supporting legs 11 are welded at four corners of the platform, and a hydraulic oil cylinder 10 is connected with the supporting legs. The 10-meter stroke of the hydraulic oil cylinder is 3 meters, the thrust is 190KN, and the tension is 150 KN.
The lower end of the platform 1 is welded with an iron hoop 8 through a connecting body 7, the fixed buoyancy adjusting cylinder 3 is fixed by the iron hoop 8, the buoy is mostly immersed in water, the internal water level is adjusted by pumping the water through a rubber pipe, the upper part of the buoy is provided with a hole, and the diameter and the length of each buoy are 1 meter and 1.5 meters. The lower part of the supporting leg is connected with a web-shaped base through a hinge ball joint 13; the bottom of the webbed base is hinged with 5 webbed palms 6, the webbed palms 6 can freely swing up and down, ribbed check rings 5 are arranged above the webbed palms, the appearance of each webbed palm is isosceles trapezoid, and the reasonable specific pressure and the adhesion force to be overcome after pulling are calculated according to the actual load and the physical and mechanical properties of a riverbed sludge covering layer.
The drilling platform is towed to a target area by a towing ship and an anchor handling ship, the anchor is handled at a proper position, the anchor is hinged with the mooring bollard through the steel wire rope, and the position of the hole is reliably and accurately fixed.
The drilling machine is used for downwards protecting the sleeve pipe to the riverbed covering layer through the drilling hole, the downward entering mode is as follows, the buoyancy adjusting cylinder pumps water through the water pump, the internal water level descends, the buoyancy rises, the draught of the drilling platform is reduced, at the moment, a single sleeve pipe is connected and then downwards enters the riverbed covering layer, then the drilling machine clamps the sleeve pipe, the water is sent to the buoyancy adjusting cylinder through the water pump, the buoyancy is reduced, the drilling platform sinks, the protecting sleeve pipe is pressed into the covering layer in a static pressure mode, the process is repeated, and the protecting sleeve pipe is pressed into the target depth.
After the protective sleeve is lowered, drilling operation is started, the pump is started to convey mud, environment-friendly mud is adopted, mud water is used on the spot, the mud returns to the above-water drilling platform after passing through the pipe cavity of the drill rod and the annular space in the hole, flows into the circulating pool, is discharged into the water after being treated, and cannot pollute the environment due to the adoption of the environment-friendly mud.
When the water level changes greatly or is shallow, and normal drilling work is influenced, the web-shaped supporting legs are placed to the bottom of the riverbed through the oil cylinder, the web palm contacts sludge at the bottom of the riverbed and turns upwards, and the web palm stops when colliding with the baffle; when the riverbed is uneven, the webbed supporting legs rotate through the ball hinges, and the supporting force is transmitted to the supporting columns, so that the bearing force is effectively provided for the platform. When the hole needs to be moved and the position needs to be changed, the oil cylinder goes upwards, the web palm is pulled up at one side, the web palm overcomes the cohesive force of the palm and rotates around the hinged head to be recovered, so that the web palm is separated from the riverbed covering layer, and the operation of the next hole position is facilitated.
The positive effects of the present invention will be further described with reference to specific application examples.
Carrying out hydrogeological drilling sampling operation on a lake by a certain unit, and uniformly arranging a series of shallow holes radially from the center of the lake to a bank according to geological requirements, wherein the depth of the drilled hole is between 0.3m and 15 m; the water area environment is mild, and the influence of factors such as wind, waves and flow is avoided. In order to quickly move holes and change positions on water, improve efficiency and overcome the adverse effect of large water depth change, the dual-purpose engineering exploration water drilling platform is selected.
The platform assembly components are transported to the construction water area accessories, the platform assembly components are completely assembled on the ground, and the deck is lifted into the water by a crane. When the operation is carried out in a region with larger water depth, such as the center of a lake, the platform adopts a floating posture on water, and is connected with an onshore anchoring point through a steel wire rope after measurement and positioning, so that the platform is ensured to be safely and stably fixed at a target point position; when the operation is carried out in shallow areas with water depth such as near shore, auxiliary tools such as drill rods on a deck are conveyed to an auxiliary ship, the platform is moved right above the drilling hole positions under the cooperation of a crane, the supporting legs are lowered, and the platform is separated from the water surface for operation.
The dual-purpose engineering exploration overwater drilling platform constructs 60 drill holes in a target water area, the hole forming rate is 100%, in actual construction, the conversion among different hole sites is flexible, the connection between a deep water environment and a shallow water environment is smooth, and the field reflection is good.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A dual-purpose engineering investigation water drilling platform is characterized by comprising a drilling machine, a mud pump, corresponding materials, an environment-friendly mud circulating pool and a groove, wherein the drilling machine, the mud pump and the corresponding materials are positioned on the upper side of the platform;
a drilling hole is formed in the middle of the platform close to the front, and a drilling machine, a slurry pump, corresponding materials, an environment-friendly slurry circulating pool and a groove are sequentially arranged at the drilling hole backwards along the central axis direction of the platform;
four buoyancy adjusting cylinders and web-shaped supporting legs are welded at four corners of the platform, and a hydraulic oil cylinder is connected with the web-shaped supporting legs;
and a ship body or a floating body is fixed in the middle of the lower side of the platform.
2. The dual-purpose engineering investigation water drilling platform of claim 1, wherein the upper ends of the four corners of the platform are provided with mooring bollards, the mooring bollards are twisted with steel wire ropes, and the other ends of the steel wire ropes are connected with anchor chains and anchors for accurate positioning of holes.
3. The dual-purpose engineering investigation water drilling platform of claim 1, wherein a connecting body is welded on the lower side of the platform, an iron hoop is welded on the lower end of the connecting body, and the buoyancy adjusting cylinder is fixed through the iron hoop.
4. The dual-purpose engineering survey water drilling platform of claim 1, wherein the buoyancy adjusting cylinder is largely submerged, the internal water level is adjusted by hose pumping, and the upper portion is perforated.
5. The dual-purpose engineering investigation water drilling platform of claim 1, wherein the webbed supporting leg is provided with a webbed base, the upper end of the webbed base is connected with the lower end of the hydraulic cylinder through a hinge ball joint, the bottom of the webbed base is hinged with 5 webbed palms, the webbed palms can freely swing up and down, and a ribbed check ring is arranged above the webbed palms.
6. The dual-purpose engineering investigation water drilling platform of claim 5, wherein each web palm is isosceles trapezoid in shape, and the area is determined by calculating reasonable specific pressure and the adhesion force to be overcome by pulling according to the actual load capacity and the physical and mechanical properties of the riverbed sludge blanket.
7. The dual use engineering survey water drilling platform of claim 1, wherein said platform is rectangular, 10 meters long and 6.5 meters wide, long in the direction of water flow and short in the direction perpendicular to the river bank.
8. A method of using the dual-purpose engineering survey water rig as claimed in any one of claims 1 to 7, the method comprising:
towing the drilling platform to a target area by a towing ship and an anchor throwing ship, throwing the anchor at a proper position, and hinging the anchor with a mooring pile through a steel wire rope to reliably and accurately fix the position of a drilling hole;
a drilling machine descends a protective sleeve to a riverbed covering layer through a drilling hole, after the protective sleeve is lowered, drilling operation is started, a pump is started to convey slurry, environment-friendly slurry is adopted, the slurry is taken by water on site, the slurry returns to an overwater drilling platform after passing through a pipe cavity of a drill rod and an annular space in the hole, flows into a circulating pool and is discharged into the water after being treated;
when the water level changes greatly or is shallow, and normal drilling work is influenced, the webbed supporting legs are descended through the hydraulic oil cylinder, the webbed supporting legs are placed to the bottom of the riverbed, the webbed palms contact silt at the bottom of the riverbed and turn upwards, and the stop is realized when the webbed palms collide with the ribbed retaining ring; when the riverbed is not flat, the webbed supporting legs rotate through the spherical hinged joints, and the supporting force is transmitted to the supporting columns, so that the bearing force is effectively provided for the platform;
when the hole needs to be moved and the position needs to be changed, the hydraulic oil cylinder goes upwards, the web palm is pulled up at one side, the web palm overcomes the cohesive force of the palm and rotates and retracts around the hinged ball joint, so that the covering layer of the riverbed is separated, and the operation of the next hole position is facilitated.
9. The method of using the dual use engineering survey water rig of claim 8, wherein the method of lowering the protective sleeve comprises:
the buoyancy adjusting cylinder pumps water through the water pump, the water level inside the buoyancy adjusting cylinder descends, the buoyancy rises, the draught of the drilling platform is reduced, at the moment, a single sleeve is connected and then goes down to a riverbed covering layer, then the drilling machine clamps the sleeve, the water pump is used for delivering water to the buoyancy adjusting cylinder, the buoyancy is reduced, the drilling platform sinks, the protective sleeve is pressed into the covering layer in a static pressure mode, the process is repeated, and the protective sleeve is pressed into the target depth.
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| CN202111211679.5A CN113914783A (en) | 2021-10-18 | 2021-10-18 | Dual-purpose engineering investigation water drilling platform and use method thereof |
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| CN202111211679.5A CN113914783A (en) | 2021-10-18 | 2021-10-18 | Dual-purpose engineering investigation water drilling platform and use method thereof |
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