CN115158568A - Foam plastic raft type drilling platform suitable for water drilling in low-water area - Google Patents
Foam plastic raft type drilling platform suitable for water drilling in low-water area Download PDFInfo
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- 238000005553 drilling Methods 0.000 title claims abstract description 98
- 239000006260 foam Substances 0.000 title claims abstract description 78
- 239000004033 plastic Substances 0.000 title claims abstract description 64
- 229920003023 plastic Polymers 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000005192 partition Methods 0.000 claims abstract description 20
- 239000011425 bamboo Substances 0.000 claims abstract description 17
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 16
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 16
- 241001330002 Bambuseae Species 0.000 claims abstract description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 62
- 239000010959 steel Substances 0.000 claims description 62
- 239000007788 liquid Substances 0.000 claims description 31
- 208000019206 urinary tract infection Diseases 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 238000004873 anchoring Methods 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002984 plastic foam Substances 0.000 claims description 4
- 230000002411 adverse Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B75/00—Building or assembling floating offshore structures, e.g. semi-submersible platforms, SPAR platforms or wind turbine platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B2021/505—Methods for installation or mooring of floating offshore platforms on site
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Abstract
The invention relates to a foam plastic raft type drilling platform suitable for water drilling in a low water flow area, which comprises a foam plastic raft type box body (1), a bamboo springboard (2), an anti-skid net partition board (3) and an oil absorption felt (4). The invention has the beneficial effects that 1) the invention is suitable for water drilling in a water area with working water depth of 0.4-5 m and small flow velocity, and has the characteristics of low cost, convenient manufacture, assembly and mobility. 2) The construction method of the platform is meticulous in logic and considers the perfect; considering not only the designed structural content but also the practical standard, and finally obtaining the number of the foam plastic blocks required by the platform through the construction step; 3) The invention provides objective theoretical support in practical use and is effective; the safety of human body and national property is ensured.
Description
Technical Field
The invention belongs to the technical field of geological exploration, and particularly relates to a foam plastic raft type drilling platform suitable for water drilling in a low-water-flow area and a construction and use method thereof.
Background
With the continuous development of hydropower development, hydraulic engineering construction and urban construction, various projects for passing through water areas, such as railways, roads, bridges, ports, docks, reservoirs, hydropower stations and other projects, the early drilling of the water areas is an indispensable engineering investigation means. Whether the engineering objective or the scientific research objective is achieved, the water conservancy and hydropower project engineering construction, the hydrogeological investigation, the road and bridge construction, the water area management and the like are developed in the water area environments such as rivers, lakes and seas, and the like, and drilling and sampling work needs to be carried out on a covering layer and underlying bedrock below the water surface to obtain geological material data and provide first-hand data for engineering design.
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 is sufficiently buoyant to bear the weight of the drilling rig, drilling tool and its associated equipment. And to maintain the platform's draft and stability.
(2) The drilling platform should have good stability, so as to maintain the stability of the drilling machine when drilling and ensure the drilling angle.
(3) The drilling platform should have good mobility, be convenient for drilling platform's mobile location.
(4) The rig should be sufficiently strong.
(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.
(7) The platform floor should be 1.5 times higher than the highest tide level during exploration plus the maximum wave height.
According to the applicant's practice of water drilling for many years, water drilling mainly has the following characteristics:
(1) A vessel or other vessel having a certain area and load capacity, on which the drilling equipment is installed, must be equipped on the water surface as an offshore drilling platform.
(2) In order to isolate the influence of flowing water on drilling work, a protective sleeve with a certain depth is firstly put into the hole position, and the protective sleeve is guaranteed to be put into the water bottom along the vertical direction, so that the process is complex and tedious.
(3) In the drilling process, a drilling ship is often influenced by the water level, the flow speed, the wind power or a sailing ship of a river (a river or a lake or a reservoir), and the position of the ship is easy to move or be collided, so that the casing pipe is bent and broken. Sometimes threatened by flooding.
(4) Is more complex in terms of equipment or operation than drilling on land. Such as anchoring, positioning, anchoring and lower protection sleeve of a drilling ship and the influence of deepwater torrent, special attention should be paid to safety to prevent various accidents.
(5) The water source for water drilling is abundant and convenient.
(6) The water drilling environment protection is particularly important.
In some water area surveys, because land transportation is inconvenient, a conventional iron barge cannot be transported, and the type of an exploration platform needs to be selected according to traffic conditions, the flow rate and the water depth of an operation water area, water regime, exploration depth, exploration equipment type, the length of the time of an exploration point exposed to the water surface, total load capacity and the like.
Disclosure of Invention
The invention aims to provide an overwater drilling platform which is simple in structure, low in manufacturing cost and convenient to transport. The platform is simple, low in cost and convenient and fast to assemble, and is suitable for shallow water areas near the bank such as rivers, reservoirs, ponds, lakes and the like.
The invention is realized by adopting the following technical scheme.
The invention relates to a foam plastic raft type drilling platform suitable for water drilling in a low-water-flow area, which comprises a foam plastic raft type box body 1, a bamboo springboard 2, an anti-skid net clapboard 3 and an oil absorption felt 4;
the foam plastic raft type box body 1 comprises a foam plastic block 11 and a box body framework 12, wherein the foam plastic block 11 is arranged inside the box body framework 12; the foam plastic blocks 11 are arranged into a plurality of groups; a plurality of foam plastic blocks 11 are fixed into a combination 16 through an angle steel bar framework, and the combination 16 is spliced and connected through a vertical longitudinal channel steel 161 and a horizontal transverse channel steel 162;
the bamboo gangplank 2 is laid on the upper surface of the foam plastic raft type box body 1; the bamboo springboard 2 is provided with a drill hole 5;
the upper surface of the bamboo springboard 2 is provided with a frequent activity area; laying an anti-skid net partition plate 3 on a frequent activity area;
the periphery of each assembly 16 is provided with an angle steel bar frame for fixing; the combined bodies 16 are welded and connected by channel steel in the horizontal direction; the vertical direction is tightly connected through a pair of through screws 163;
the oil absorption felt 4 is arranged on the upper part of the bamboo springboard 2; is connected with the antiskid net clapboard 3 in an abutting way. The oil absorption felt 4 is used for absorbing oil stains and preventing water body pollution.
The box body framework 12 comprises angle steel and bolts; the angle steel is provided with a plurality of angle steels, and a connecting hole is formed in the end or the middle of each angle steel; the angle steels are fixedly connected through bolts arranged in the connecting holes; a plurality of angle steels form a frame structure, and the frame structure is a box body framework 12.
The box body framework 12 is arranged into a plurality of groups; the steel plates are fixedly connected through a plurality of longitudinal and transverse channel steel.
The through screw 163 of the present invention is disposed between the channel steels disposed on the top and bottom of the plastic foam raft-type drilling platform.
The foam plastic raft type drilling platform comprises a safety protection railing 13; the safety protection railing 13 is arranged around the box body framework 12.
The foam plastic raft type drilling platform comprises an inclined strut 15; the inclined strut 15 is arranged inside the box body framework 12, and two ends of the inclined strut 15 are fixedly connected with the end or the middle of a channel steel arranged inside the box body framework 12 respectively.
The foam plastic raft type drilling platform comprises an anchoring steel pipe 14; the anchoring steel pipe 14 is vertically arranged at the lower part of the box body framework 12.
The foam plastic raft type drilling platform comprises an inclined rod 17; the inclined rod 17 is arranged on the side part of the box body framework 12, and is beneficial to enhancing the overall stability.
The antiskid net partition plate 3 is formed by arranging a plurality of antiskid net partition plates with the side length of 1m in a longitudinal and transverse mode; the antiskid net partition plate 3 is formed by connecting a framework shaped like a Chinese character 'ri' and a steel net.
The construction method of the foam plastic raft type drilling platform comprises the following steps:
the method comprises the following steps: analysis of stress conditions
The construction points of the drilling platform during design comprise: 1) A vertically directed force; 2) The rotation moment taking the drill hole as the center is not considered;
step two: deadweight analysis
The materials for building the foam plastic raft type drilling platform comprise a foam plastic block, angle steel, channel steel, a connecting fastener and an anti-skid net partition plate; besides the dead weight of the platform, the platform also comprises the dead weight of a drilling machine, a drill rod, a slurry pump, tools and instruments and drilling and cataloguing personnel;
step three: buoyancy calculation
According to the Archimedes principle, an object immersed in a liquid is subjected to an upward buoyancy equal to the weight of the object on the liquid, i.e. F Floating body ＝G Liquid drainage ＝ρ Liquid for treating urinary tract infection gV Row board ；
In the formula rho Liquid for treating urinary tract infection Represents the density of the liquid; v Row board Representing the volume of liquid displaced by the object; g is the gravity acceleration, and 9.8 is taken;
when the object floats, F Floating body ＞G Article (A) And ρ Article (A) ＜ρ Liquid for treating urinary tract infection ；
When the object sinks, F Floating body ＜G Article (A) And ρ Article (A) ＞ρ Liquid for treating urinary tract infection ；
When the object is in suspension, F Floating body ＝G Article (A) And ρ Article (A) ＝ρ Liquid for treating urinary tract infection ；
In order to meet the water area exploration safety regulation of geotechnical engineering exploration safety standard (GB 50585-2019), the minimum foam plastic block required by the drilling platform in a floating state under the condition of maximum load is calculated;
in the formula: n is a radical of min soaking device The foam plastic block meets the normal and safe production requirements;
G article (A) The self weight of the oil drum raft type drilling platform = the self weight of equipment, tools and personnel of the drilling platform;
G failure of the product The maximum pull-up force under adverse working conditions;
V single foam block Is the volume of a single oil barrel;
g is gravity acceleration, and is 9.8m/s 2 ；
Step four: load factor of safety calculation
According to the water area exploration safety regulation of geotechnical engineering exploration safety standard (GB 50585-2019), the total load capacity safety coefficient K borne by the built raft type exploration platform is more than 3 when the water area exploration is carried out on non-navigable rivers, lakes, reservoirs and the like with the flow rate of less than 1.0m/s and the wave height of less than 0.1 m;
number of foam plastic blocks meeting load requirement
Step five: determining the number of foam blocks
The number of the actually built foam plastic blocks is N load and N min soaking device The maximum value of the oil tanks is integral multiple of 2 when the drilling platform is built.
The invention has the beneficial effects that 1) the invention is suitable for water drilling in a water area with working water depth of 0.4-5 m and small flow velocity, and has the characteristics of low cost, convenient manufacture, assembly and mobility. 2) The construction method of the platform is meticulous in logic and considers the perfect; the number of the foam plastic blocks required by the platform is obtained through the construction steps by considering not only the designed structural content but also the practical standard; 3) The invention provides objective theoretical support in practical use and is effective; the safety of human body and national property is ensured.
The invention is further explained below with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a schematic view of a gas-water separation tee joint of the present invention.
FIG. 2 is a side view of the present invention.
Fig. 3 is an enlarged structural schematic diagram of the positions of the anti-slip net partition (3) and the oil absorption felt (4) of the invention.
The numbers in the figures of the invention are marked as: 1-foam plastic raft type box body, 2-bamboo springboard, 3-anti-skidding net partition board, 4-oil absorption felt, 5-drilling hole, 11-foam plastic block, 12-box body framework, 13-safety protection railing, 14-anchoring steel pipe, 15-inclined strut, 16-assembly, 161-longitudinal channel steel, 162-transverse channel steel, 163-opposite-penetrating screw rod and 17-inclined rod.
Detailed Description
See fig. 1, 2, 3.
The invention relates to a foam plastic raft type drilling platform suitable for water drilling in a low-water area, which comprises a foam plastic raft type box body 1, bamboo springboards 2, anti-skidding net partition boards 3 and an oil absorption felt 4;
the foam plastic raft type box body 1 comprises a foam plastic block 11 and a box body framework 12, wherein the foam plastic block 11 is arranged inside the box body framework 12; the foam plastic blocks 11 are arranged into a plurality of groups; a plurality of foam plastic blocks 11 are fixed into a combination 16 through an angle steel bar framework, and the combination 16 is spliced and connected through a vertical longitudinal channel steel 161 and a horizontal transverse channel steel 162;
the bamboo gangplank 2 is laid on the upper surface of the foam plastic raft type box body 1; the bamboo springboard 2 is provided with a drill hole 5;
the upper surface of the bamboo springboard 2 is provided with a frequent activity area; laying an anti-skid net partition plate 3 on a frequent activity area;
the periphery of each combined body 16 is provided with an angle steel bar frame for fixing; the combined bodies 16 are welded and connected by channel steel in the horizontal direction; the vertical direction is tightly connected through a pair of through screws 163;
the oil absorption felt 4 is arranged on the upper part of the bamboo springboard 2; is connected with the antiskid net clapboard 3 in an abutting way. The oil absorption felt 4 is used for absorbing oil stains and preventing water body pollution.
The box body framework 12 comprises angle steel and bolts; the angle steel is provided with a plurality of angle steels, and a connecting hole is formed in the end or the middle of each angle steel; the angle steels are fixedly connected through bolts arranged in the connecting holes; a plurality of angle steels form a frame structure, and the frame structure is a box body framework 12.
The box body framework 12 is arranged into a plurality of groups; the steel plates are fixedly connected through a plurality of longitudinal and transverse channel steel.
The through screw 163 of the present invention is disposed between the channel steels disposed on the top surface and the bottom surface of the foam raft type drilling platform.
The foam plastic raft type drilling platform comprises a safety protection railing 13; the safety protection guardrail 13 is arranged around the box body framework 12.
The foam plastic raft type drilling platform comprises an inclined strut 15; the inclined strut 15 is arranged inside the box body framework 12, and two ends of the inclined strut 15 are fixedly connected with the end or the middle of a channel steel arranged inside the box body framework 12 respectively.
The foam plastic raft type drilling platform comprises an anchoring steel pipe 14; the anchoring steel pipe 14 is vertically arranged at the lower part of the box body framework 12.
The foam plastic raft type drilling platform comprises an inclined rod 17; the diagonal rod 17 is arranged on the side part of the box body framework 12, and is favorable for enhancing the overall stability.
The antiskid net partition plate 3 is formed by arranging a plurality of antiskid net partition plates with the side length of 1m in a longitudinal and transverse mode; the antiskid net partition plate 3 is formed by connecting a framework shaped like a Chinese character 'ri' and a steel net.
The construction method of the foam plastic raft type drilling platform comprises the following steps:
the method comprises the following steps: analysis of stress conditions
The construction points of the drilling platform during design comprise: 1) A vertically directed force; 2) The rotation moment taking the drill hole as the center is not considered;
step two: deadweight analysis
The materials for building the foam plastic raft type drilling platform comprise a foam plastic block, angle steel, channel steel, a connecting fastener and an anti-skid net partition plate; besides the self weight of the platform, the platform also comprises the self weight of a drilling machine, a drill rod, a slurry pump, tools and instruments and drilling and cataloging personnel;
step three: buoyancy calculation
According to the Archimedes principle, an object immersed in a liquid is subjected to an upward buoyancy equal to the weight of the object on the liquid, i.e. F Floating body ＝G Liquid drainage ＝ρ Liquid for treating urinary tract infection gV Row board ；
Where ρ is Liquid for medical purpose Represents the density of the liquid; v Row board Representing the volume of liquid displaced by the object; g is gravity acceleration, and 9.8 is taken;
when the object floats, F Floating body ＞G Article (A) And ρ Article (A) ＜ρ Liquid for treating urinary tract infection ；
When the object sinks, F Floating body ＜G Article (A) And ρ Article (A) ＞ρ Liquid for medical purpose ；
When the object is in suspension, F Floating body ＝G Article (A) And ρ Article (A) ＝ρ Liquid for treating urinary tract infection ；
In order to meet the water area exploration safety regulation of geotechnical engineering exploration safety standard (GB 50585-2019), the minimum foam plastic block required by the drilling platform in a floating state under the condition of maximum load is calculated;
in the formula: n is a radical of min bubble A foam block for meeting normal and safe production requirements;
G article (A) The method is characterized in that the method is that the dead weight of a bucket raft type drilling platform = the dead weight of equipment, tools and personnel of the drilling platform;
G failure of the product The maximum uplift force under adverse working conditions;
V single foam block Is the volume of a single oil drum;
g is gravity acceleration, and is 9.8m/s 2 ；
Step four: load factor of safety calculation
According to the water area exploration safety regulation of geotechnical engineering exploration safety standard (GB 50585-2019), the total load capacity safety coefficient K borne by the built raft type exploration platform is more than 3 when the water area exploration is carried out on non-navigable rivers, lakes, reservoirs and the like with the flow rate of less than 1.0m/s and the wave height of less than 0.1 m;
number of foam plastic blocks meeting load requirement
Step five: determining the number of foam blocks
The number of the actually built foam plastic blocks is N load and N min bubble The maximum value in (2) is integral multiple of the oil barrel number when the drilling platform is built.
Figure 1 shows an example of 8 assemblies, each comprising 5 foam blocks 11 (foam buns), for a total of 40 foam buns. Exemplary foam blocks are 1.6m long, 0.8m wide, 0.6m high,
V single foam block Is 0.768m 3 ，
G Total buoyancy ＝ρ Liquid for medical purpose gV Row board ＝1000×9.8×0.768×40＝301056N＝301.06KN，
G Total gravity ＝G Total buoyancy ÷3＝100.35KN，
Namely, the self weight of the oil drum raft type drilling platform is below 10.24t, and the water area exploration safety regulation of geotechnical engineering exploration safety standard (GB 50585-2019) is met.
The foregoing is only a part of the specific embodiments of the present invention and specific details or common general knowledge in the schemes have not been described herein in more detail. It should be noted that the above-mentioned embodiments do not limit the present invention in any way, and it is obvious for those skilled in the art that all the technical solutions obtained by using the equivalent substitution or the equivalent change fall within the protection scope of the present invention. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A foam plastic raft type drilling platform suitable for water drilling in a low-water area is characterized by comprising a foam plastic raft type box body (1), bamboo springboards (2), anti-skid net partition plates (3) and an oil absorption felt (4);
the foam plastic raft type box body (1) comprises a foam plastic block (11) and a box body framework (12), wherein the foam plastic block (11) is arranged inside the box body framework (12); the foam plastic blocks (11) are arranged into a plurality of groups; a plurality of foam plastic blocks (11) are fixed into a combination body (16) through an angle steel rod framework, and the combination bodies (16) are spliced and connected through vertical longitudinal channel steel (161) and horizontal transverse channel steel (162);
the bamboo gangplank (2) is laid on the upper surface of the foam plastic raft type box body (1); the bamboo gangplank (2) is provided with a drill hole (5);
the upper surface of the bamboo springboard (2) is provided with a frequent activity area; paving an anti-skid net partition plate (3) on a frequent activity area;
the periphery of each combined body (16) is provided with an angle steel bar frame for fixing; the combined bodies (16) are welded and connected by channel steel in the horizontal direction; the vertical direction is tightly connected through a pair of through screws (163);
the oil absorption felt (4) is arranged on the upper part of the bamboo springboard (2); is connected with the antiskid net clapboard (3) in an abutting way.
2. The foam plastic raft type drilling platform suitable for water drilling in low-flow areas according to claim 1, wherein the box frame (12) comprises angle steel, bolts; the angle steel is provided with a plurality of angle steels, and a connecting hole is formed in the end or the middle of each angle steel; the angle steels are fixedly connected through bolts arranged in the connecting holes; a plurality of angle steels form a frame structure which is a box body framework (12).
3. The foam plastic raft type drilling platform suitable for water drilling in low-flow areas as claimed in claim 2, wherein the box frameworks (12) are arranged in a plurality of groups; the steel plates are fixedly connected through a plurality of longitudinal and transverse channel steel.
4. The raft drilling platform of claim 1, wherein said screws (163) are disposed between channels disposed on the top and bottom surfaces of the raft drilling platform.
5. A plastic foam raft drilling platform suitable for water drilling in low-flow areas according to claim 1, characterised in that it comprises safety guard rails (13); the safety protection railing (13) is arranged around the box body framework (12).
6. A foam raft drilling platform adapted for water drilling in low-flow areas according to claim 1, characterised in that it comprises diagonal braces (15); bracing (15) set up inside box skeleton (12), the both ends of bracing (15) are respectively at the end or the middle part position fixed connection of the inside channel-section steel that sets up of box skeleton (12).
7. A plastic foam raft drilling platform adapted for use in water drilling in low-flow areas, according to claim 1, wherein the plastic foam raft drilling platform comprises an anchored steel pipe (14); the anchoring steel pipe (14) is vertically arranged at the lower part of the box body framework (12).
8. A raft drilling platform of foamed plastics suitable for drilling on water in low-current areas, according to claim 1, characterised in that it comprises a diagonal (17); the inclined rod (17) is arranged on the side part of the box body framework (12).
9. The foam plastic raft type drilling platform suitable for water drilling in low-flow areas according to claim 1, wherein the anti-skid net partition plates (3) are composed of a plurality of anti-skid net partition plates with the side length of 1m which are arranged vertically and horizontally; the anti-skid net partition plate (3) is formed by connecting a framework shaped like a Chinese character 'ri' and a steel net.
10. The method of constructing a foam raft drilling platform of claim 1, comprising the steps of: the method comprises the following steps: analysis of stress conditions
The construction points of the drilling platform during design comprise: 1) A vertically directed force; 2) The rotation moment taking the drill hole as the center is not considered;
step two: deadweight analysis
The materials for building the foam plastic raft type drilling platform comprise a foam plastic block, angle steel, channel steel, a connecting fastener and an anti-skid net partition plate; besides the dead weight of the platform, the platform also comprises the dead weight of a drilling machine, a drill rod, a slurry pump, tools and instruments and drilling and cataloguing personnel;
step three: buoyancy calculation
According to the Archimedes principle, an object immersed in a liquid is subjected to an upward buoyancy equal to the weight of the object on the liquid, i.e. F Floating body ＝G Liquid drainage ＝ρ Liquid for medical purpose gV Row board ；
In the formula rho Liquid for medical purpose Represents the density of the liquid; v Row board Representing the volume of liquid displaced by the object; g is the gravity acceleration, and 9.8 is taken;
when the object floats, F Floating body ＞G Article (A) And ρ Article (A) ＜ρ Liquid for treating urinary tract infection ；
When the object sinks, F Floating body ＜G Article (A) And ρ Article (A) ＞ρ Liquid for treating urinary tract infection ；
When the object is in suspension, F Floating body ＝G Article (A) And ρ Article (A) ＝ρ Liquid for treating urinary tract infection ；
In order to meet the water area exploration safety regulation of geotechnical engineering exploration safety standard (GB 50585-2019), the minimum foam plastic block required by the drilling platform in a floating state under the condition of maximum load is calculated;
in the formula, N min soaking device The foam plastic block meets the normal and safe production requirements;
G article (A) The self weight of the oil drum raft type drilling platform = the self weight of equipment, tools and personnel of the drilling platform;
G failure of the product The maximum pull-up force under adverse working conditions;
V single foam block Is the volume of a single oil barrel;
g is gravity acceleration, and is 9.8m/s 2 ；
Step four: load factor of safety calculation
According to the water area exploration safety regulation of geotechnical engineering exploration safety standard (GB 50585-2019), the total load capacity safety coefficient K borne by the raft-type exploration platform constructed by carrying out water area exploration on non-navigable rivers, lakes, reservoirs and the like with the flow speed of less than 1.0m/s and the wave height of less than 0.1m is greater than 3;
number of foam plastic blocks meeting load requirement
Step five: determining the number of foam blocks
The number of the actually built foam plastic blocks is N load and N min The maximum value in the bubble is integral multiple of 2 when the drilling platform is built.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210833865.0A CN115158568A (en) | 2022-07-14 | 2022-07-14 | Foam plastic raft type drilling platform suitable for water drilling in low-water area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210833865.0A CN115158568A (en) | 2022-07-14 | 2022-07-14 | Foam plastic raft type drilling platform suitable for water drilling in low-water area |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116017A (en) * | 2011-01-04 | 2011-07-06 | 广西电力工业勘察设计研究院 | Foam platform for drilling on waterways |
| CN207328771U (en) * | 2017-08-02 | 2018-05-08 | 化学工业岩土工程有限公司 | A kind of detachable raft formula shallow water drilling platform |
| CN217706214U (en) * | 2022-07-14 | 2022-11-01 | 中国电建集团昆明勘测设计研究院有限公司 | Foam plastic raft type drilling platform suitable for water drilling in low-water area |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116017A (en) * | 2011-01-04 | 2011-07-06 | 广西电力工业勘察设计研究院 | Foam platform for drilling on waterways |
| CN207328771U (en) * | 2017-08-02 | 2018-05-08 | 化学工业岩土工程有限公司 | A kind of detachable raft formula shallow water drilling platform |
| CN217706214U (en) * | 2022-07-14 | 2022-11-01 | 中国电建集团昆明勘测设计研究院有限公司 | Foam plastic raft type drilling platform suitable for water drilling in low-water area |
Non-Patent Citations (2)
| Title |
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| 中华人民共和国住房和城乡建设部: "《岩土工程勘察安全标准》", 31 December 2019 * |
| 胡飞;王亚凤;夏勇;张重皓;: "油桶筏式钻探平台在水域工程勘察项目中的应用", 资源环境与工程, no. 06, pages 995 - 998 * |
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