CN204510181U - A kind of phytal zone drilling platform - Google Patents
A kind of phytal zone drilling platform Download PDFInfo
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- CN204510181U CN204510181U CN201420836740.4U CN201420836740U CN204510181U CN 204510181 U CN204510181 U CN 204510181U CN 201420836740 U CN201420836740 U CN 201420836740U CN 204510181 U CN204510181 U CN 204510181U
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- 238000005553 drilling Methods 0.000 title claims abstract description 34
- RAFZYSUICBQABU-HMMYKYKNSA-N Phytal Chemical compound CC(C)CCCC(C)CCCC(C)CCC\C(C)=C\C=O RAFZYSUICBQABU-HMMYKYKNSA-N 0.000 title claims abstract description 26
- RAFZYSUICBQABU-QYLFUYDXSA-N Phytal Natural products CC(C)CCC[C@@H](C)CCC[C@@H](C)CCC\C(C)=C/C=O RAFZYSUICBQABU-QYLFUYDXSA-N 0.000 title claims abstract description 26
- RAFZYSUICBQABU-UHFFFAOYSA-N phytenal Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)=CC=O RAFZYSUICBQABU-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 99
- 239000010959 steel Substances 0.000 claims abstract description 99
- 238000010276 construction Methods 0.000 claims abstract description 80
- 239000002689 soil Substances 0.000 claims description 24
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 239000011230 binding agent Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 206010039203 Road traffic accident Diseases 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 239000004927 clay Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a kind of phytal zone drilling platform, comprise the fill platform being in phytal zone, several bearing pile and steel plate, described fill platform fills and also upwards surfaces on riverbed, described bearing pile is vertically arranged in fill platform, and be distributed in the both sides of bridge pile foundation, the bottom of described bearing pile is fixed in riverbed, its top then extends on the end face of fill platform, on the end face that described steel plate is laid on fill platform and the top being positioned at described bearing pile to form when bearing platform work for drilling construction facility support drilling construction facility to meet requirement for bearing capacity.The utility model construction technology is simple, saves construction cost, improves operating efficiency, construction safety risk reduces greatly, and follow-up binder, pier stud construction directly can carry out excavation, steel cofferdam need not be adopted to construct, save construction cost further.Steel pipe pile and steel plate can have enough to meet the need construction usage, improve stock utilization.
Description
Technical field
The utility model relates to phytal zone bridge pile foundation and substructure construction technology, particularly relates to a kind of phytal zone drilling platform.
Background technology
Phytal zone bridge pile foundation and substructure construction need on the water operation platform to carry out, and waterborne traffic accident will use operation at sea ship to set up, the process of specifically setting up of waterborne traffic accident is: first use pile driving barge inserted to play steel pipe pile in water, then use lift-on and lift-off ship, near steel pipe pile, load bearing cross beam and vertical, horizontal steel truss are installed on steel pipe pile, complete waterborne traffic accident load-carrying members to arrange, finally on load bearing cross beam, lay distribution beam, then lay steel plate in distribution beam.
There is following defect setting up in process in above-mentioned waterborne traffic accident: be (1) carry out operation on the water completely owing to setting up waterborne traffic accident, and construction ship belongs to floating system, so construction safety risk is very big, and difficulty of construction is also very large; (2) set up waterborne traffic accident and relate to the operations such as uncountable above-water hoisting, weld job, working procedure is numerous and diverse, and when removing waterborne traffic accident, needs equally to adopt the mode of operation at sea to remove, the operation of therefore removing is also very numerous and diverse, so that operating efficiency is lower; (3) set up in the process of waterborne traffic accident, due to operation at sea ship will be used to set up, particularly the lease expenses of pile driving barge and lift-on and lift-off ship is high, makes construction cost very high.
Building island cofferdam platform also can as the platform of over-water construction, and building island cofferdam platform is incline from side to opposite side to filling out rolling and placement material and carry out filling forming.Its advantage is: speed of application is fast, construct without the need to large-scale lifting appliance.But its shortcoming is: the material filling platform cannot have enough to meet the need, and platform bearer power is low, easy sinking, when particularly carrying out Bridge Pile Foundation Construction, because construction equipment is from great, platform can be caused to produce crack, differential settlement, and cause the sinking of pile foundation casing, serious off normal.When carrying out pile foundation construction away from bank or pioneer road side, due to casing, side is without constraint near water, and casing extrudes by the soil body, and off normal is obvious, causes useless hole, re-starts construction after need backfilling.
Utility model content
The purpose of this utility model be to provide a kind of constructs simple, greatly can reduce the phytal zone drilling platform that difficulty of construction and construction safety risk, construction cost are low, can increase substantially efficiency of construction, can requirement for bearing capacity be met, mainly be applicable to the depth of water 3.0 ~ 5.0m and silt depth is less than the inland shallow water district of 2.0m.
The purpose of this utility model realizes by the following technical solutions: a kind of phytal zone drilling platform, it is characterized in that: it comprises the fill platform being in phytal zone, several bearing pile and steel plate, described fill platform fills and also upwards surfaces on riverbed, described bearing pile is vertically arranged in fill platform, and be distributed in the both sides of bridge pile foundation, the bottom of described bearing pile is fixed in riverbed, its top then extends on the end face of fill platform, on the end face that described steel plate is laid on fill platform and the top being positioned at described bearing pile to form when bearing platform work for drilling construction facility support drilling construction facility to meet requirement for bearing capacity.
The utility model is waterbornely set up compared with steel platform with existing, and decrease the working procedure that over-water construction is numerous and diverse, construction technology is simple, does not need the heavy construction equipments such as Waterborne construction craft, and then saves construction cost, improve operating efficiency.From over-water construction become land construct, construction safety risk reduces greatly, and follow-up binder, pier stud construction directly can carry out excavation, steel cofferdam need not be adopted to construct, save construction cost further.Build island cofferdam platform compared to existing, improve bearing capacity, platform not easily produces crack and sedimentation, avoids the phenomenon of the sinking of pile foundation casing, off normal.In addition, steel pipe pile and steel plate can have enough to meet the need construction usage, improve stock utilization.Be proven, the single operation platform of the utility model can save nearly 100,000 yuan relative to steel pipe+shaped steel waterborne traffic accident, and overall construction cost drops into more economical, practical compared with steel pipe+shaped steel waterborne traffic accident, can promote the use of in the construction of phytal zone.
As a kind of embodiment of the present utility model, described bearing pile adopts timber or steel pipe pile.
As another kind of embodiment of the present utility model, described bearing pile adopts steel pipe pile and timber, between the bridge pile foundation that described steel pipe pile is adjacent at outermost bridge pile foundation, and be in the side of outermost bridge pile foundation, steel pipe pile is bearing on the outer end of steel plate respectively.Outermost bridge pile foundation refers to distance riverbank or pioneer road bridge pile foundation farthest; Described timber is array regular array, and is positioned at the inner side of steel pipe pile.
As further improvement of the utility model, the top of described timber and the top of steel pipe pile to be in same level to make described steel plate horizontal, can ensure the planeness that steel plate is laid; The top of described steel pipe pile is welded with the lower face of steel plate, and the top of described timber is bearing on the lower face of steel plate, and namely steel plate is directly supported on the top of timber.
Embodiment is recommended as one of the present utility model, described fill platform is made up of argillic horizon and the grey soil layer be positioned on argillic horizon end face, described argillic horizon surfaces, and the part that argillic horizon surfaces rolls through placement in layers and forms, and meets the demands to make bearing capacity.
The part every layer filling-up thickness that argillic horizon described in the utility model surfaces is 25 ~ 35cm, and described grey the thickness of the layer is 40 ~ 60cm, and in grey soil layer, lime content is 5 ~ 10% (mass ratioes).
When bridge pile foundation distance riverbank is nearer, fill platform described in the utility model is bulldozed to fill towards bridge pile foundation direction from the side on riverbank and is formed; When bridge pile foundation distance riverbank is far away, described fill platform is bulldozed to fill towards bridge pile foundation direction from the side of pioneer road and is formed, and described pioneer road fills from the side on riverbank to bulldoze with the direction that bridge location moves towards to parallel.
Compared with prior art, the utility model has following significant effect:
(1) the utility model is waterbornely set up compared with steel platform with existing, and decrease the working procedure that over-water construction is numerous and diverse, construction technology is simple, does not need the heavy construction equipments such as Waterborne construction craft, and then saves construction cost, improve operating efficiency.
From over-water construction become land construct, construction safety risk reduces greatly, and follow-up binder, pier stud construction directly can carry out excavation, steel cofferdam need not be adopted to construct, save construction cost further.
(3) build island cofferdam platform compared to existing, improve bearing capacity, platform not easily produces crack and sedimentation, avoids the phenomenon of the sinking of pile foundation casing, off normal.
(4), in work progress, steel pipe pile and steel plate all can have enough to meet the need construction and be suitable for, and improve stock utilization.
(5) be proven, the single operation platform of the utility model can save nearly 100,000 yuan relative to steel pipe+shaped steel waterborne traffic accident, and overall construction cost drops into more economical, practical compared with steel pipe+shaped steel waterborne traffic accident, can promote the use of in the construction of phytal zone.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is plan view of the present utility model;
Fig. 2 is elevation of the present utility model.
Detailed description of the invention
As Fig. 1, shown in 2, it is a kind of phytal zone of the utility model drilling platform, it comprises the fill platform 1 being in phytal zone, several bearing pile and steel plate 4, bearing pile adopts steel pipe pile 3 and timber 2, timber 2 adopts fir pile, fill platform 1 fills and also upwards surface 10 on riverbed, fill platform 1 is made up of argillic horizon and the grey soil layer be positioned on argillic horizon end face, argillic horizon surfaces, the part that argillic horizon surfaces rolls through placement in layers and forms, every layer of filling-up thickness is 25 ~ 35cm, ash the thickness of the layer is 40 ~ 60cm, in ash soil layer, lime content is 5 ~ 10%, argillic horizon surface part height be grey soil layer bottom absolute altitude and flood season peak level difference.Timber 2 and steel pipe pile 3 are all vertically arranged in fill platform 1, and be distributed in the both sides of bridge pile foundation respectively, the bottom of timber 2 and steel pipe pile 3 is fixed in riverbed 9, its top then extends on the end face of fill platform 1, on the end face that steel plate 4 is laid on the fill platform 1 and top being positioned at timber 2 and steel pipe pile 3 to form when bearing platform work for drilling construction facility support drilling construction facility to meet requirement for bearing capacity, the top of steel pipe pile 3 is welded with the lower face of steel plate 4, and the top of timber 2 is bearing on the lower face of steel plate 4.Steel pipe pile 3 is divided into the both sides of bridge pile foundation, and between the bridge pile foundation 5 be adjacent at outermost bridge pile foundation 6, and be in the side of outermost bridge pile foundation 6, be bearing in respectively on the outer end of steel plate 4.Timber 2 in array regular array, and is positioned at the inner side of steel pipe pile 3.The top of timber 2 and the top of steel pipe pile 3 are in make steel plate 4 horizontal in same level, ensure the planeness that steel plate 4 is laid.
A construction method for above-mentioned phytal zone drilling platform, specifically comprises the following steps:
(1) according to phytal zone bridge pile foundation and substructure situation, in conjunction with river course, site operation position situation, determine setting position and the size of fill platform, draw fill platform design drawing;
In the present embodiment, bridge pile foundation amounts to 678, and wherein have 152 pile bases to be positioned at the phytal zones such as local fish pond and River system, the depth of water is 3.5 ~ 4.5m, and pile foundation is the friction pile of diameter 1.5m, and stake is long is 35 ~ 45m.
Bridge location is located in THE LOWER YANGTZE VALLEY dense waterway net region, many rivers, lake, belongs to ChangJiang River, has abundant surface water resources.River course peak level mostly occurs in 7 ~ August, and Flood position exceeds field 4 ~ 6m in country fair, but pumping station discharging capacity is comparatively strong, can ensure that this location was not soaked and flooded rainy season.According to investigating, since broken country fair in 1954, there is not serious waterlogging phenomenon.
Bridge location district is the south of the lower reaches of the Yangtze River, spread all over paddy field, Duo Gou pool anabranch, relief is little, ground elevation is generally between 6.2m to 6.8m, bridge location place stratum geology is poor, and stratum is followed successively by constructing soil, lam, weak soil, lam (gently), fine sand, medium sand, land pebble, whetstone sand, circle gravel soil, coarse sand, clay from top to bottom.Two sides, river Soft Soil Layer is thicker, and thickness reaches 18m.The actual soil layer passed of pile foundation is weak soil, lam (gently), fine sand, circle gravel soil.Distributing position and soil thickness situation as shown in the table:
(table 1)
The construction operation space of 1.0m is respectively stayed according to bridge pile foundation structural plan size and both sides, add pile foundation both sides when bridge substructure is constructed and respectively stay the operating space of 3.0m, determine boring fill platform end face size, then, calculate fill platform base plane size according to the site operation position river degree of depth (fill platform periphery ratio of slope is pressed 1:0.5 and arranged), then draw fill platform design drawing.
According to bridge location district pile foundation geological condition, pile foundation adopts churning driven pore-forming technique, but drilling construction facility, from great (one borehole construction equipment is from weighing about 70T), require higher to pile foundation in water construction drill platform bearer power.
(2) calculate the working load of bridge pile foundation drilling construction facility;
(3) determine the arrangement of bearing pile, calculate the bearing capacity of single bearing pile, obtain the quantity of bearing pile according to the working load of drilling construction facility and the bearing capacity calculation of single bearing pile, to meet requirement for bearing capacity;
Specifically comprise:
1. the setting position of steel pipe pile is determined according to the front fulcrum of drilling construction facility during Bridge Pile Foundation Construction and the position of outermost bridge pile foundation;
2. calculate the bearing capacity of single steel pipe pile, obtain the quantity of steel pipe pile according to the working load of drilling construction facility and the bearing capacity calculation of single steel pipe pile;
3. according to the setting position of the position of bridge pile foundation and the width determination timber of drilling construction facility traveling crawler;
4. calculate the bearing capacity of single timber, obtain the quantity of timber according to the working load of drilling construction facility and the bearing capacity calculation of single timber;
Bearing capacity [the P of single steel pipe pile
steel] and the bearing capacity [P of single timber
wood] obtain by following formulae discovery:
[Ρ]=1/2 (U Σ α
il
iτ
i+ α A σ
r) formula (1)
In formula:
The bearing capacity of [Ρ]-stake, KN;
The girth of U-stake, m;
L
i-cushion cap bottom surface or the following soil thickness of local scour line, m;
τ
i-with l
icorresponding each soil layer and the limit frictional resistance of pile lining, kpa;
σ
rthe ultimate bearing capacity of-pile top place soil, kpa;
α
i, α-be respectively the influence coefficient of stake to bearing capacity at the bottom of each soil layer pile perimeter resistance and stake.
Select according to the supporting force (being calculated by the working load of drilling construction facility) of front fulcrum during drilling construction facility construction operation and having determined
(1) steel pipe pile calculates length and the quantity of steel pipe pile by formula, and steel pipe pile length is 8.0m as calculated, and steel pipe pile is 2;
Select the fir pile of diameter 15cm, long 5m, (1) single timber bearing capacity [Ρ] wood is calculated according to formula, the quantity of timber is obtained according to the working load of drilling construction facility and the bearing capacity calculation of single timber, fir pile horizontal spacing is set to 50cm according to wheel width, below every bar runway, each layout 2 row, amounts to 4 rows; Longitudinal pitch is arranged according to steel plate lower, planar size during driving by timber total quantity, is 80cm through its longitudinal pitch of fir pile length computation.
(4) start construction, according to fill platform design drawing, banket with propulsion mode gradually from the original position of fill platform towards bridge pile foundation direction and roll formation fill platform, in the present embodiment, bridge pile foundation distance riverbank is far away, the original position of fill platform 1 is the side of pioneer road 7, and pioneer road 7 is bulldozed fill from the side on riverbank 8 to move towards with bridge location direction that A parallels, and fill platform 1 is bulldozed to fill towards bridge pile foundation direction B by the side of pioneer road 7 to form.The filling material of fill platform selects clay and dirt, employing tipping lorry is toppled over, and bulldozer is rolling bulldozed mode and constructs, and clay requires dry, loose, become graininess, the clay large to water content is stopped to use, and after clay surfaces, the mode adopting placement in layers to roll is constructed, lift height controls at 30cm, platform top layer 50cm adopts dirt to fill, and lime content controls 5 ~ 10%, plays the effect of water proof.
(5) on fill platform, carry out the construction lofting of bridge pile foundation, timber and steel pipe pile, inserted to play timber and steel pipe pile in fill platform; Steel pipe pile uses 25T crane to coordinate 60 type vibrating hammers to carry out inserted to play construction, during inserted to play, inserted to play is carried out in strict accordance with design drawing position in steel pipe pile position, prevent steel pipe pile off normal from having a strong impact on later stage shield-tube embedment, steel pipe pile elevation of top and fir pile top are consistent, to ensure the planeness that top steel plate is laid.Fir pile uses hand fit's excavator to carry out inserted to play, checks before using to fir pile, surperficial free from insect pests, bending phenomenon, and requires that diameter is between 10 ~ 15cm.During inserted to play fir pile, suitably carry out sharpening process, be beneficial to carry out inserted to play bottom fir pile, will ensure that fir pile is vertical during inserted to play, to prevent the pile foundation shield-tube embedment construction of obliquity effects later stage, fir pile overhead height is consistent, and is beneficial to later stage steel plate and lays.During inserted to play timber, mainly utilize timber in inserted to play process due to the soil body around extruding, make the soil body become more closely knit, timber and the soil body act synergistically overall stressed.
(6) on the end face of fill platform, lay the thick steel plate of 16mm, and steel plate is positioned at the top of timber and steel pipe pile, the effect of steel plate increases construction equipment bearing capacity lifting surface area.Steel plate is transported to job site and lays in strict accordance with design attitude after back court carries out anti-skidding process.Steel plate has been laid and has been reused bulldozer to other regions of table top and flatten, roll afterwards, completes phytal zone drilling platform construction.Bury casing underground again, leave standstill and carry out Bridge Pile Foundation Construction after 10 ~ 15 days.
After bridge pile foundation and substructure construction complete, progressively use digging machine to coordinate tipping truck transport the soil body that fills to spoir place, complete river course and dredge and cleaning work.The bridge more to pier in the water of phytal zone, the soil body dug out, after airing, can be directly used in filling of next operation platform, plays the object that turnover utilizes.
Embodiment of the present utility model is not limited thereto, according to foregoing of the present utility model, according to ordinary technical knowledge and the customary means of this area, do not departing under the utility model above-mentioned fundamental technics thought prerequisite, the utility model bearing pile can also use the stake of other type, such as concrete pile; Timber also can adopt other timber to make; (1) steel pipe pile and the timber insertion depth in riverbed is calculated by formula, and namely the length of steel pipe pile or timber deducts the height of fill platform and get final product.Bridge pile foundation can be not only a row, can also be more than two rows, when for two rows above time, determine the arrangement mode of bearing pile according to the drilling construction facility of practice of construction situation and selection.In addition, bearing pile can only adopt timber or steel pipe pile, also can adopt timber and steel pipe pile with the use of, concrete use is determined according to practice of construction situation.Therefore, the utility model can also make the amendment of other various ways, replacement or change, all drops within the utility model rights protection scope.
Claims (6)
1. a phytal zone drilling platform, it is characterized in that: it comprises the fill platform being in phytal zone, several bearing pile and steel plate, described fill platform fills and also upwards surfaces on riverbed, described bearing pile is vertically arranged in fill platform, and be distributed in the both sides of bridge pile foundation, the bottom of described bearing pile is fixed in riverbed, its top then extends on the end face of fill platform, on the end face that described steel plate is laid on fill platform and the top being positioned at described bearing pile to form when bearing platform work for drilling construction facility support drilling construction facility to meet requirement for bearing capacity.
2. phytal zone according to claim 1 drilling platform, is characterized in that: described bearing pile adopts timber or steel pipe pile.
3. phytal zone according to claim 1 drilling platform, it is characterized in that: described bearing pile adopts steel pipe pile and timber, described steel pipe pile is divided into the both sides of bridge pile foundation, between the bridge pile foundation that steel pipe pile is adjacent at outermost bridge pile foundation, and be in the side of outermost bridge pile foundation, steel pipe pile is bearing on the outer end of steel plate, and described timber is array regular array, and is positioned at the inner side of steel pipe pile.
4. phytal zone according to claim 3 drilling platform, is characterized in that: the top of described timber and the top of steel pipe pile are in same level to make described steel plate horizontal; The top of described steel pipe pile is welded with the lower face of steel plate, and the top of described timber is bearing on the lower face of steel plate.
5. phytal zone according to claim 4 drilling platform, is characterized in that: described fill platform is made up of argillic horizon and the grey soil layer be positioned on argillic horizon end face, and described argillic horizon surfaces, and the part that argillic horizon surfaces rolls through placement in layers and forms.
6. the phytal zone drilling platform according to any one of Claims 1 to 5, is characterized in that: described fill platform is bulldozed to fill towards bridge pile foundation direction from the side on riverbank and formed; Or described fill platform is bulldozed to fill towards bridge pile foundation direction from the side of pioneer road and is formed, and described pioneer road fills from the side on riverbank to bulldoze with the direction that bridge location moves towards to parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420836740.4U CN204510181U (en) | 2014-12-24 | 2014-12-24 | A kind of phytal zone drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420836740.4U CN204510181U (en) | 2014-12-24 | 2014-12-24 | A kind of phytal zone drilling platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204510181U true CN204510181U (en) | 2015-07-29 |
Family
ID=53708173
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420836740.4U Expired - Fee Related CN204510181U (en) | 2014-12-24 | 2014-12-24 | A kind of phytal zone drilling platform |
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| Country | Link |
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| CN (1) | CN204510181U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563077A (en) * | 2014-12-24 | 2015-04-29 | 中交路桥华南工程有限公司 | Drilling platform in shallow water area and construction method thereof |
| CN109838211A (en) * | 2019-04-03 | 2019-06-04 | 华北水利水电大学 | A kind of underwater pile drilling operation platform |
-
2014
- 2014-12-24 CN CN201420836740.4U patent/CN204510181U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563077A (en) * | 2014-12-24 | 2015-04-29 | 中交路桥华南工程有限公司 | Drilling platform in shallow water area and construction method thereof |
| CN104563077B (en) * | 2014-12-24 | 2017-01-04 | 中交路桥华南工程有限公司 | A kind of phytal zone drilling platform and construction method thereof |
| CN109838211A (en) * | 2019-04-03 | 2019-06-04 | 华北水利水电大学 | A kind of underwater pile drilling operation platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 |