CN203977401U - A kind of sand pile machine for dark soft base construction - Google Patents
A kind of sand pile machine for dark soft base construction Download PDFInfo
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- CN203977401U CN203977401U CN201420312947.1U CN201420312947U CN203977401U CN 203977401 U CN203977401 U CN 203977401U CN 201420312947 U CN201420312947 U CN 201420312947U CN 203977401 U CN203977401 U CN 203977401U
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Abstract
The utility model discloses a kind of sand pile machine for dark soft base construction, comprise platform, mast, immersed tube, immersed tube hoisting system, be positioned at immersed tube top vibrating hammer and can be to the hopper of immersed tube back-up sand, immersed tube hoisting system comprises main winch and the secondary hoist engine be located on platform, main winch is walked around mast upper end by the first wire rope and is connected with vibrating hammer, secondary hoist engine is walked around mast lower end by the first wire rope and is connected with vibrating hammer, also comprise depth registration system, depth registration system comprises the depth transducer be located on mast and the transmission rope of transmission depth transducer, the two ends of transmission rope are connected with vibrating hammer by elastic component after walking around respectively the top and bottom of mast.Design according to this, by depth registration system independently, makes depth transducer vibration little, data record is accurate, spare and accessory parts loss is low, avoids prior art work progress middle pulley rotational response slow or do not rotate, cause depth transducer damage seriously cannot image data etc. the generation of problem.
Description
Technical field
The utility model, for construction equipment field, particularly relates to a kind of sand pile machine for dark soft base construction.
Background technology
In road construction, smooth for physical features along the line, river embankment gathers, groundwater table is higher, the following geology in earth's surface consists of clay grain, sand, grey gravel and with the residual clay of plant, when the poor road construction of geological condition, need to adopt a large amount of draining sand drains, sand compaction pile to carry out treatment of soft foundation.Wherein, sand compaction pile construction mainly completes by sand pile machine.Existing sand pile machine generally comprises platform, mast, immersed tube, immersed tube hoisting system, vibrating hammer and can be to the hopper of back-up sand in immersed tube.When construction, first by vibrating hammer and immersed tube hoisting system, immersed tube is sunk to target sand pile position, then by hopper to back-up sand in immersed tube, and the making of simultaneously immersed tube having been extracted to sand pile.In whole construction, need by sand pile machine recorder monitoring sand compaction pile formation of pile, to ensure sand compaction pile pile quality.Its essential record parameter has sand face duration curve, formation of pile medium sand flow duration curve, formation of pile middle sleeve path real-time curve and electric current----time plot etc. in the pile degree of depth, pile sand amount, construction beginning and ending time, atmospheric pressure value and sleeve pipe.Sand pile machine recorder is made up of two cover systems, is respectively depth registration system and sand amount sand planar survey system.Depth registration system is used for recording the practice of construction process pile degree of depth and back-pressure process; Sand amount sand planar survey system is for measuring sand amount and the lower sand amount of formation of pile of adding.
Existing sand pile machine sand amount sand planar survey system, in the time that measurement adds sand amount, adopts plummet to measure the height of sand face in immersed tube, records sand face and the last relative relief of surveying sand in pipe by plummet, and then through calculating.But because coarse sand is subject to the impact of immersed tube internal gas pressure, sand face is loose and unstable, plummet can accurately not measured the actual sand side's amount that adds.Simultaneously, plummet needs to be manually promoted to immersed tube top adding at every turn in sand process, after filling it up with sand, again plummet is down to sand face, the valuable engineering time of waste, and workman does not slightly note just there will be plummet to be buried, the accidents such as wire rope is pulled off, waste a large amount of wire rope and plummet, and sand planar survey system need consuming time that again more renew 40～60 minutes; Draw the sensor signal control interval that the motor of plummet adopts too large simultaneously, make motor control slow in reacting, often produce the control time to incur loss through delay, reaction truth that can not be promptly and accurately, makes a big impact to normal construction.
In addition, existing sand pile machine depth registration system is in the time recording in practice of construction process the pile degree of depth, depth encoder is directly by the wire rope gearing of immersed tube hoisting system, in vibrating hammer start-up course, vibrations are larger, life-span impact on depth encoder is larger, simultaneously in work progress, easily occurring skidding pulley, cause can not the accurate recording degree of depth.
Utility model content
For addressing the above problem, the utility model provides a kind of improvement to add sand amount and depth registration systematic survey accuracy, avoids plummet to be buried, and extends the sand pile machine for dark soft base construction in depth encoder life-span.
The utility model solves the technical scheme that its technical problem adopts: a kind of sand pile machine for dark soft base construction, comprise platform, mast, immersed tube, immersed tube hoisting system, be positioned at immersed tube top vibrating hammer and can be to the hopper of immersed tube back-up sand, immersed tube hoisting system comprises main winch and the secondary hoist engine be located on platform, main winch is walked around mast upper end by the first wire rope and is connected with vibrating hammer, secondary hoist engine is walked around mast lower end by the first wire rope and is connected with vibrating hammer, also comprise depth registration system, depth registration system comprises the depth transducer be located on mast and the transmission rope of transmission depth transducer, the two ends of transmission rope are connected with vibrating hammer by elastic component after walking around respectively the top and bottom of mast.
Be further used as the improvement of technical solutions of the utility model, also comprise sand planar survey system, sand planar survey system comprises motor, sand face sensor, the second wire rope and the plummet hanging down in immersed tube, and the second wire rope is walked around respectively sand face sensor and with mast upper end, motor is connected with plummet.
Be further used as the improvement of technical solutions of the utility model, sand planar survey system also comprises the first fixed pulley of being located on platform, the second fixed pulley, be positioned between the first fixed pulley and the second fixed pulley and be provided with the slide of vertical chute and be positioned at the movable pulley of vertical chute, movable pulley is connected with the top of slide by extension spring, the inherent vertical chute of slide upper, lower two ends are equipped with travel switch, the second wire rope is drawn by motor, and successively from sand face sensor, the first fixed pulley below, movable pulley top, the second fixed pulley below, mast upper end is walked around rear introducing immersed tube and is connected with plummet, the second wire rope is at the first fixed pulley, between movable pulley and the second fixed pulley, be W shape trend.
Be further used as the improvement of technical solutions of the utility model, also comprise filling system, offside at mast on immersed tube is provided with material inlet port, the 3rd wire rope being connected with hopper after filling system comprises the skip hoist be located on platform and drawn and walked around mast upper end by skip hoist, is serially connected with LOAD CELLS on the 3rd wire rope.
Be further used as the improvement of technical solutions of the utility model, hopper comprises the casing that upper end is uncovered, the bottom sidewall of casing forms material mouth and at discharging opening place, hatch door is set, and casing is provided with the cylinder that drives hatch door folding, and the base plate of casing is to discharging opening lopsidedness and be provided at an outer portion with vibrator.
Be further used as the improvement of technical solutions of the utility model, also comprise the air compressor machine arranging with platform split, the outer wall of immersed tube is provided with some air flues that vertically extend to immersed tube lower end, each air flue all forms gas port at the lower end of immersed tube tube wall, and air compressor machine is by the airtight connection of upper end port of tracheae and each air flue.
Be further used as the improvement of technical solutions of the utility model, air flue arranges three altogether, and three air flues are uniformly distributed at the outer wall of immersed tube, and the distance of the lower end of three air flues and immersed tube lower end is respectively 1m, 3m and 6m.
Be further used as the improvement of technical solutions of the utility model, immersed tube is Q345B steel pipe.
Be further used as the improvement of technical solutions of the utility model, mast is provided with guide rail in the side near vibrating hammer, and vibrating hammer is provided with the guide wheel that can slide up and down along guide rail.
Be further used as the improvement of technical solutions of the utility model, the lower end of mast is connected with platform by bearing pin, and platform is provided with some support oil cylinders and supports the brace of mast.
The beneficial effects of the utility model: this is for the sand pile machine of dark soft base construction, be provided for specially the transmission rope of transmission depth transducer, the two ends of transmission rope are fixed on the upper and lower end of vibrating hammer by elastic component, make depth transducer vibration little, data record is accurate, and spare and accessory parts loss is low.The utility model designs according to this, by depth registration system independently, avoid in prior art, utilize the lifting direct-drive depth transducer of the first wire rope to rotate, the vibration that brings is large, cause pulley to deviate from the first wire rope, uses for a long time pulley serious wear, and vibration simultaneously causes greatly holding screw loosening, cause work progress middle pulley rotational response slow or do not rotate, cause depth transducer damage seriously cannot image data etc. the generation of problem.
In addition, the utility model is also provided with sand planar survey system, and plummet is in decline process, and movable pulley moves down, and extension spring is in tension state, but the travel switch below can not contacting.In the time adding sand, plummet is subject to adding the impact force of sand, and the pulling force of feedback on the second wire rope increases, and movable pulley touches the travel switch of below, plummet is promoted, thereby while avoiding adding sand, bury hammer; In the time that plummet touches sand face in decline process, the second steel wire rope looseness, extension spring retraction, now movable pulley can touch the travel switch of top, and plummet is promoted.The utility model is by installing travel switch additional, control timely and effectively the lifting of plummet, avoid burying the generation of hammer and disconnected wire rope accident, guarantee the reliability of record data, effectively controlled construction quality, facts have proved that this kind of scheme promoted efficiency greatly, fault rate has reduced by 90%, taking the sand compaction pile that completes a 31m as example, can save time 5 minutes, raise the efficiency 9.5%.
Moreover, the utility model is by installing LOAD CELLS additional on the 3rd wire rope promoting hopper, LOAD CELLS tension after bunker lift, thereby directly quality signal is changed into measurable signal of telecommunication output, feed back quality by internal processes, the sandstone specific gravity factor recording by experiment, can be exchanged into the sand side's amount that adds.The utility model is by above-mentioned design, avoid using in prior art plummet to survey sand and caused the inaccurate situation of the side of measurement amount, shortened the time that plummet consumes because of lifting survey sand face simultaneously, taking the sand compaction pile that completes a 31m as example, can save time 7 minutes, raise the efficiency 13.5%.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model embodiment overall structure schematic diagram;
Fig. 2 is the utility model embodiment depth registration system architecture schematic diagram;
Fig. 3 is the utility model embodiment sand planar survey system architecture schematic diagram;
Fig. 4 is A place partial enlarged drawing in Fig. 3;
Fig. 5 is the utility model embodiment immersed tunnel structure schematic diagram;
Fig. 6 is B-B place sectional view in Fig. 5;
Fig. 7 is the utility model embodiment hopper construction schematic diagram.
Detailed description of the invention
With reference to Fig. 1～Fig. 7, the utility model provides a kind of sand pile machine for dark soft base construction, comprise platform 1, mast 2, immersed tube 3, immersed tube hoisting system, be positioned at immersed tube 3 tops vibrating hammer 4 and can be to the hopper 5 of immersed tube 3 back-up sands, the lower end of mast 2 is connected with platform 1 by bearing pin, platform 1 is provided with some support oil cylinders 11 and supports the brace 12 of mast 2, mast 2 is provided with guide rail in the side near vibrating hammer 4, and vibrating hammer 4 is provided with the guide wheel 41 that can slide up and down along guide rail.Immersed tube hoisting system comprises main winch 13 and the secondary hoist engine 14 be located on platform 1, main winch 13 is walked around mast 2 upper ends by the first wire rope 15 and is connected with vibrating hammer 4, secondary hoist engine 14 is walked around mast 2 lower ends by the first wire rope 15 and is connected with vibrating hammer 4, also comprise depth registration system, depth registration system comprises the depth transducer 61 be located on mast 2 and the transmission rope 62 of transmission depth transducer 61, and the two ends of transmission rope 62 are connected with vibrating hammer 4 by elastic component 63 after walking around respectively the top and bottom of mast 2.
Before construction, platform 1 be positioned over to target sand pile operating position and support by support oil cylinder 11, holding up mast 2, preparing construction.When construction, first by vibrating hammer 4 and secondary hoist engine 14, immersed tube 3 is sunk to target sand pile position along mast 2 guide rails, then pass through hopper 5 to the interior back-up sand of immersed tube 3, and the making of simultaneously by main winch 13, immersed tube 3 upwards having been extracted to sand pile.
This is provided for the transmission rope 62 of transmission depth transducer 61 specially for the sand pile machine of dark soft base construction, and transmission rope 62 can be selected the wire rope of 4mm, and depth transducer 61 is disk light beam encoder.The two ends of transmission rope 62 are fixed on the upper and lower end of vibrating hammer 4 by spring, vibrating hammer 4, moving up and down in process, drives disk light beam encoder to rotate by transmission rope 62, thereby realize, the displacement on turning cylinder is converted to pulse or digital quantity.The utility model designs according to this, by depth registration system independently, avoid in prior art, utilize the lifting direct-drive depth transducer 61 of the first wire rope 15 to rotate, the vibration that brings is large, cause pulley to deviate from the first wire rope 15, uses for a long time pulley serious wear, and vibration simultaneously causes greatly holding screw loosening, cause work progress middle pulley rotational response slow or do not rotate, cause depth transducer damage seriously cannot image data etc. the generation of problem.Whole work progress depth transducer 61 vibrates little, and data record is accurate, and spare and accessory parts loss is low.
As the utility model preferred embodiment, the utility model also comprises sand planar survey system, sand planar survey system comprises that motor 71, sand face sensor 72(select disk light beam encoder equally), the second wire rope 73 and plummet 74, the second wire rope 73 that hang down in immersed tube 3 walk around respectively sand face sensor 72 and with mast 2 upper ends, motor 71 are connected with plummet 74.Sand planar survey system also comprises the first fixed pulley 75 of being located on platform 1, the second fixed pulley 76, be positioned between the first fixed pulley 75 and the second fixed pulley 76 and be provided with the slide 78 of vertical chute 77 and be positioned at the movable pulley 79 of vertical chute 77, movable pulley 79 is connected with the top of slide 78 by extension spring 70, the inherent vertical chutes 77 of slide 78 upper, lower two ends are equipped with travel switch 771, the second wire rope 73 is drawn by motor 71, and successively from sand face sensor 72, the first fixed pulley 75 belows, movable pulley 79 tops, the second fixed pulley 76 belows, mast 2 upper ends are walked around rear introducing immersed tube 3 and are connected with plummet 74, the second wire rope 73 is at the first fixed pulley 75, between movable pulley 79 and the second fixed pulley 76, be W shape trend.
When sand planar survey system works, plummet 74 is in decline process, and movable pulley 79 moves down, and extension spring 70 is in tension state, but the travel switch 771 below can not contacting.In the time adding sand, plummet 74 is subject to adding the impact force of sand, and the pulling force of feedback on the second wire rope 73 increases, and movable pulley 79 touches the travel switch 771 of below, and motor 71 promotes plummet 74, thereby buries hammer while avoiding adding sand; In the time that plummet 74 touches sand face in decline process, the second steel wire 73 ropes are lax, and extension spring 70 bounces back, and now movable pulley 79 can touch the travel switch 771 of top, and motor 71 promotes plummet 74.The utility model is by installing travel switch 771 additional, control timely and effectively the lifting of plummet 74, avoid burying the generation of hammer and disconnected wire rope accident, guarantee the reliability of record data, effectively controlled construction quality, facts have proved that this kind of scheme promoted efficiency greatly, fault rate has reduced by 90%, taking the sand compaction pile that completes a 31m as example, can save time 5 minutes, raise the efficiency 9.5%.
As the utility model preferred embodiment, the utility model also comprises filling system, on immersed tube 3, be provided with material inlet port 31 at the offside of mast 2, on the 3rd wire rope 82, the three wire rope 82 that are connected with hopper 5 after filling system comprises the skip hoist 81 be located on platform 1 and drawn and walked around mast 2 upper ends by skip hoist 81, be serially connected with S type drawing and pressing type LOAD CELLS 83.
In construction, skip hoist 81 draws hopper 5 by the 3rd wire rope 82 and endlessly sand material is inserted in immersed tube 3.The utility model installs S type drawing and pressing type LOAD CELLS 83 additional on the 3rd wire rope 82 that promotes hopper 5, LOAD CELLS tension after skip hoist 81 drives hopper 5 to promote, STRESS VARIATION is converted to voltage change by internal resistance foil gauge, thereby directly quality signal is changed into measurable signal of telecommunication output, feed back quality by internal processes, the sandstone specific gravity factor recording by experiment, can be exchanged into the sand side's amount that adds.The utility model is by above-mentioned design, avoid using in prior art plummet 74 to survey sand and caused the inaccurate situation of the side's of measurement amount, shortened plummet 74 simultaneously and surveyed the time that sand face consumes because of lifting, taking the sand compaction pile that completes a 31m as example, can save time 7 minutes, raise the efficiency 13.5%.
Hopper in existing equipment is horizontal hopper, hopper hatch door is manually opened, need two workman's compounding practices, a workman operates the lifting of hopper, another workman takes manual method opening and closing hopper hatch door, the too numerous and diverse and inefficiency of operating aspect, and hopper hatch door is in the time opening, easily occur that hopper door cannot be opened or can only be half-open, the situation such as cannot close.For addressing the above problem, as the utility model proposes following technical scheme, hopper 5 comprises the uncovered casing in upper end 51, the bottom sidewall of casing 51 forms material mouth 52 and at discharging opening 52 places, hatch door 53 is set, casing 51 is provided with the cylinder 54 that drives hatch door 53 foldings, and the base plate of casing 51 is to discharging opening 52 lopsidedness and be provided at an outer portion with vibrator 55.
By above-mentioned design, hatch door 53, by the original pneumatic door that manually makes into, for accelerating lower sand, and has installed the vibrator 55 of attaching additional in hopper discharging opening 52 positions.In opened door 53, vibrator 55 can be opened simultaneously, and hopper 5 is produced to larger vibrations, to accelerate lower sand, and prevents that sand from producing clogging at discharging opening 52.Contrast original horizontal hopper, the vertical hopper 5 after improvement has been realized semi-automatic control, and it is fast to have lower sand, easy to operate simple, saves manually, and rate of breakdown is lower, and efficiency of construction improves nearly one times than original horizontal hopper.
In prior art, air compressor machine 9 is located on platform 1, because the vibrations of sand pile machine are excessive; often there is sensor action shutdown in air compressor machine 9; air compressor machine 9 cooling fluid metal oil conduit boosters cause leakage of oil, and circuit part control panel and contactor are burnt, thereby cause the sand pile machine cannot normal construction.For reducing the excessive fault that air compressor machine 9 is caused of sand pile machine vibrations, the utility model is air compressor machine 9 and platform 1 split setting just, make it away from vibration source, consider that gas outlet tube and power line are lengthened to the length that is beneficial to construction to be considered after air compressor machine 9 is unloaded down and may cause the front and back weight of sand pile machine 9 can produce unbalanced problem simultaneously, on platform, the installation site of former air compressor machine 9 installs the iron case 16 that volume is 1m3 additional, and in iron case 16, sand loading is as counterweight.Through Construction practices, due to not vibrations, all there is not any fault in the air compressor machine 9 that sand pile machine configures, and the anterior-posterior balance problem of sand pile machine has also obtained good solution.
In order to ensure that sand is when 3 li of immersed tube can arrive down in stake hole smoothly, compactness can reach designing requirement, the outer wall of immersed tube 3 is provided with three air flues 32 that vertically extend to immersed tube 3 lower ends, the caliber of each air flue 32 is 32mm, each air flue 32 all forms gas port 33 at the lower end of immersed tube 3 tube wall, and air compressor machine 9 is the airtight connection of upper end port with each air flue 32 by tracheae 91.Article three, air flue 32 is uniformly distributed at the outer wall of immersed tube 3, and the distance of the lower end of three air flues 32 and immersed tube 3 lower ends is respectively 1m, 3m and 6m.
By hopper 5, when adding sand in immersed tube 3, air compressor machine 9 is worked, and gas enters immersed tube 3 by the gas outlet 33 of immersed tube 3 lower ends, makes sand in immersed tube 3 in the state of seething, thereby after ensureing that immersed tube 3 is extracted, can form closely knit sand pile.
As the utility model preferred embodiment, immersed tube 3 is Q345B steel pipe.Q345B steel pipe yield value reaches 345MPa, doubles than existing material, has greatly improved abrasion resistance, intensity and the impact resistance of immersed tube.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (10)
1. the sand pile machine for dark soft base construction, it is characterized in that: comprise platform, mast, immersed tube, immersed tube hoisting system, be positioned at immersed tube top vibrating hammer and can be to the hopper of immersed tube back-up sand, described immersed tube hoisting system comprises main winch and the secondary hoist engine be located on platform, described main winch is walked around mast upper end by the first wire rope and is connected with vibrating hammer, secondary hoist engine is walked around mast lower end by the first wire rope and is connected with vibrating hammer, also comprise depth registration system, described depth registration system comprises the transmission rope of depth transducer described in the depth transducer be located on mast and transmission, the two ends of described transmission rope are connected with vibrating hammer by elastic component after walking around respectively the top and bottom of mast.
2. the sand pile machine for dark soft base construction according to claim 1, it is characterized in that: also comprise sand planar survey system, described sand planar survey system comprises motor, sand face sensor, the second wire rope and the plummet hanging down in immersed tube, and described the second wire rope is walked around respectively sand face sensor and with mast upper end, motor is connected with plummet.
3. the sand pile machine for dark soft base construction according to claim 2, it is characterized in that: described sand planar survey system also comprises the first fixed pulley of being located on platform, the second fixed pulley, be positioned between described the first fixed pulley and the second fixed pulley and be provided with the slide of vertical chute and be positioned at the movable pulley of described vertical chute, described movable pulley is connected with the top of slide by extension spring, the inherent vertical chute of described slide upper, lower two ends are equipped with travel switch, described the second wire rope is drawn by motor, and successively from sand face sensor, the first fixed pulley below, movable pulley top, the second fixed pulley below, mast upper end is walked around rear introducing immersed tube and is connected with plummet, the second wire rope is at the first fixed pulley, between movable pulley and the second fixed pulley, be W shape trend.
4. according to the sand pile machine for dark soft base construction described in claim 1,2 or 3, it is characterized in that: also comprise filling system, offside at mast on described immersed tube is provided with material inlet port, the 3rd wire rope being connected with hopper after described filling system comprises the skip hoist be located on platform and drawn and walked around mast upper end by skip hoist, is serially connected with LOAD CELLS on described the 3rd wire rope.
5. the sand pile machine for dark soft base construction according to claim 4, it is characterized in that: described hopper comprises the casing that upper end is uncovered, the bottom sidewall of described casing forms material mouth and at discharging opening place, hatch door is set, casing is provided with the cylinder that drives hatch door folding, and the base plate of described casing is to discharging opening lopsidedness and be provided at an outer portion with vibrator.
6. according to the sand pile machine for dark soft base construction described in claim 1,2 or 3, it is characterized in that: also comprise the air compressor machine arranging with platform split, the outer wall of described immersed tube is provided with some air flues that vertically extend to immersed tube lower end, each air flue all forms gas port at the lower end of immersed tube tube wall, and described air compressor machine is by the airtight connection of upper end port of tracheae and each air flue.
7. the sand pile machine for dark soft base construction according to claim 6, is characterized in that: described air flue arranges three altogether, and three air flues are uniformly distributed at the outer wall of immersed tube, and the distance of the lower end of three air flues and immersed tube lower end is respectively 1m, 3m and 6m.
8. according to the sand pile machine for dark soft base construction described in claim 1,2 or 3, it is characterized in that: described immersed tube is Q345B steel pipe.
9. according to the sand pile machine for dark soft base construction described in claim 1,2 or 3, it is characterized in that: described mast is provided with guide rail in the side near vibrating hammer, and described vibrating hammer is provided with the guide wheel that can slide up and down along described guide rail.
10. the sand pile machine for dark soft base construction according to claim 8, is characterized in that: the lower end of described mast is connected with platform by bearing pin, and described platform is provided with some support oil cylinders and supports the brace of mast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312947.1U CN203977401U (en) | 2014-06-12 | 2014-06-12 | A kind of sand pile machine for dark soft base construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312947.1U CN203977401U (en) | 2014-06-12 | 2014-06-12 | A kind of sand pile machine for dark soft base construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203977401U true CN203977401U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420312947.1U Withdrawn - After Issue CN203977401U (en) | 2014-06-12 | 2014-06-12 | A kind of sand pile machine for dark soft base construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN203977401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088271A (en) * | 2014-06-12 | 2014-10-08 | 广东长大海外工程有限公司 | Sand pile machine for deep soft foundation construction |
| CN106638548A (en) * | 2016-10-24 | 2017-05-10 | 中国民航机场建设集团公司 | Sinking tubular gravel pile machine |
-
2014
- 2014-06-12 CN CN201420312947.1U patent/CN203977401U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088271A (en) * | 2014-06-12 | 2014-10-08 | 广东长大海外工程有限公司 | Sand pile machine for deep soft foundation construction |
| CN104088271B (en) * | 2014-06-12 | 2015-12-23 | 广东长大海外工程有限公司 | A kind of sand pile machine for dark soft base construction |
| CN106638548A (en) * | 2016-10-24 | 2017-05-10 | 中国民航机场建设集团公司 | Sinking tubular gravel pile machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20151223 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |