CN204461907U - There is the waters vane shear test platform on tub truss basis - Google Patents
There is the waters vane shear test platform on tub truss basis Download PDFInfo
- Publication number
- CN204461907U CN204461907U CN201520128692.8U CN201520128692U CN204461907U CN 204461907 U CN204461907 U CN 204461907U CN 201520128692 U CN201520128692 U CN 201520128692U CN 204461907 U CN204461907 U CN 204461907U
- Authority
- CN
- China
- Prior art keywords
- suction
- conduit
- platform
- shear test
- fixed frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a kind of vane shear test platform in waters with tub truss basis, comprise with lower part: the suction pedestal be made up of three suction buckets and a fixed frame, three summits of fixed frame are fixedly connected with the top of three suction buckets respectively; The top of each suction bucket is also provided with draining aspirating hole; Truss module, is positioned at the top of fixed frame; Conduit, upwards extends from the center vertical of suction pedestal, and formed by conduit box cupling serial connection by multiple conduit sections, one of them conduit sections is fixedly connected with truss module, and the top of conduit is provided with platform support; Job platform, is fixedly connected on platform support, and job platform is provided with drilling rod entrance.The utility model is connected with investigation vessel negative pressure ventilation system by suction bucket top draining aspirating hole, enforcement injection, has simple installation, low cost and the feature such as reusable, thus realizes coastal waters (river) vane shear test waterborne.
Description
Technical field
The utility model relates to a kind of coastal waters geotechnical engineering investigation job platform, can guarantee that vane-shear test event waterborne is normally carried out, and belongs to waters ground performance on-the-spot test basic platform specifically.
Background technology
Vane shear test (VST) is a kind of by applying torsion to the cross wrench inserting regulation shape and size in foundation soil, cross wrench constant speed in soil is reversed until the soil body cuts damage, the peak torque that when measuring rotation, periphery is formed simultaneously, thus conversing soil classifiction, its value is equivalent to the test degree of depth natural soil layer undrained shear strength under pressure consolidation in position.Vane shear test does not need to take soil sample, avoid the data distortion that sample structure disturbance and stress relief cause, compared with shop experiment intensity index, it more can reflect the actual strength of soft clay layer, become Foundation Design to exploit potentialities, reduce costs, carry the indispensable means of testing of high-quality one, GB " Code for investigation of geotechnical engineering " (GB 50021-2001, version in 2009), the specification such as rower " highway soft soil ground embankment design and operating technique detailed rules and regulations " (JTG/T D31-02-2013) and " Engineering Geological Location of Railway Direction in-situ test code " (TB l0018-2003) has all made detailed guidance.Cross plate shearing instrument is that Sweden scholar Mancur Olson (J.Olsson) proposed in nineteen twenty-eight, and China brought into use in 1954, had become a kind of home position testing method evaluated foundation soil and generally adopt at present.
At present, the most frequently used cross plate shearing instrument has mechanical type and electric measuring type two kinds, and for the marine deposit soft clay layer that offshore engineering is common, vane shear test can be used for measuring the undrained shear strength under in-situ stress condition; Determine sensitivity and the slope stability of soil; Calculate foundation bearing capacity, ultimate bearing capacity; Judge the parameters such as the consolidation state of soil.Vane shear test is very ripe in land-based area application, but the stable platform under the compound load action that counter-force etc. forms is crept in the level that operation at sea need rely on can bear vertical load, stormy waves causes and torsion load, test.
In prior art, VST test implemented by conventional ship borne type or fixed platform, cost is high and efficiency is low, and be subject to severe sea condition, the restriction of complicated landform and great number cost, VST test event is made to be difficult to popularity and application in marine traffic engineering, document " correlation research of saturated soft clay vane shear strength " (Wan Zhongxi, Liu Danzhong, marine traffic engineering, 2012, : 176-180.) and " application of vane shear test in the tunnel engineering investigation of Zhuhai and Macao bridge island, port " (Xie Yanyun (7), Wang Qiang, marine traffic engineering, 2013, : 39-42.) etc. (7) be all described.
Also the solution of part vane shear test waterborne is disclosed in prior art, the Chinese utility model patent being 200420020202.4 as the patent No. discloses one " Water area in-situ testing bottom suction type platform ", platform and integrally installs in advance, by working mother boat, platform is hung in water, this utility model is close to land-based area stationary platforms effect.But due to the restriction of this utility model podium level, there is operating water depth more shallow (≤15m), the verticality of complicated sea bed situation lower platform is difficult to ensure.
Chinese utility model patent CN201512098U discloses one " light self-elevating survey platform over rivers ", and platform is supported on riverbed by supporting leg and shoe, pulls the cucurbit at supporting leg top to realize lifting by manpower.Platform structure is simple, light, can meet the in-situ tests such as river, river, lake inner cross plate shearing.But platform is by the restriction of leg length, and the depth of water of adaptation is more shallow, wind resistance, wave, the ability such as to gush are lower, cannot meet the normal enforcement of the comparatively severe offshore waters four-bladed vane test event of environment.
Separately, pct international patent application " unconditional stability floating offshore platform " (PCT/US2011/0327262011.04.15), for offshore oil development provides the strong job platform of a kind of anti-overturning, but installation process needs more auxiliary equipment to coordinate, the cost of great number drops into the four-bladed vane test event demand that cannot adapt to low charge.
Along with the continuous expansion of the project scales such as coastal waters littoral waterwork, Oversea bridge, deep water wharf, man-made island tunnel, in Geotechnical Engineering basic engineering, more and more depend on the mechanics parameter that the in-situ tests such as four-bladed vane provide.Therefore, in the industry in the urgent need under one go, perpendicular surely, rise and get, and the repeatedly used offshore platform of the high and low cost of security, and the vane-shear device meeting Europe superscript (EU), American Standard (ASTM) or GB (GB) can be installed, meet marine traffic engineering Soft Clay Foundation design requirement.
Utility model content
Technology to be solved in the utility model is to provide a kind of vane shear test platform for offshore waters, for sea bed soft clay stratum and severe sea condition complex environment, vertical load that four-bladed vane test process is subject to, cutting torsion can be overcome, creep into the combined load impact that counter-force and horizontal wave load form.
In order to solve the problems of the technologies described above, the utility model is by the following technical solutions: a kind of vane shear test platform in waters with tub truss basis, comprise with lower component: suction pedestal, comprise three suction buckets and a fixed frame, described fixed frame is equilateral triangle, and three summits of fixed frame are fixedly connected with the top of described three suction buckets respectively; The top of each suction bucket is also provided with draining aspirating hole; Truss module, in regular triangular prism shaped, is positioned at the top of fixed frame, and three ribs of truss module are fixedly connected with the mid point on three limits of fixed frame respectively; Conduit, upwards extends from the center vertical of described suction pedestal, and formed by conduit box cupling serial connection by multiple conduit sections, one of them conduit sections is fixedly connected with described truss module, and the top of described conduit is provided with platform support; Job platform, be fixedly connected on described platform support, job platform is provided with drilling rod entrance.
Preferably, the bottom opening place of described suction bucket is provided with loaded filter.
More preferably, the bottom opening place of described suction bucket is also provided with spreading portion, and described loaded filter is fixed in described spreading portion.
Preferably, described truss module is fixed with balancing weight.
Preferably, described platform support comprises bottom plate, mounting plate, the many arc-shaped brackets radially upwards extended from bottom plate and the conduit sections be connected between upper and lower supporting plate.
Preferably, also Vib. is fixed with in each suction bucket.
The utility model also provides a kind of installation method of above-mentioned vane shear test platform, and the method comprises the following steps:
A, in investigation vessel, be pre-assembled suction pedestal, and connect water and gas conduit on the draining aspirating hole of each suction bucket, and truss module is arranged on fixed frame; According to the convenience of operation, some sections of conduit sections are installed in suction pedestal and truss module, form platform base;
B, on platform base, fix wire rope, utilize the suspension bracket in investigation vessel platform base is sling and progressively puts into water, simultaneously progressively spreading conduit in the process transferred, until suction bucket is located on underwater sea bed or riverbed; And surfaced certain altitude in conduit upper end;
C, platform base deadweight effect under, mud face certain depth can be sunk in the bottom of suction bucket, closed cavity is defined in suction bucket, then the upper end of water and gas conduit is connected with the negative-pressure ward system in investigation vessel, suction is carried out to the inside of suction bucket and forms negative pressure, make suction bucket overcome the resistance of the soil body, be constantly pressed in foundation soil, until designated depth;
D, platform support is fixed on conduit upper end, platform support fixes job platform again, four-bladed vane instrument can be installed on job platform, carry out vane shear test.
Preferably, in described step C, in conduit upper end, level meter is installed, is pressed in the process of foundation soil at suction bucket, according to the instruction of level meter, adjusts the swabbing pressure of each suction bucket at any time, make the end face maintenance level of conduit.
Preferably, in described step D, before carrying out vane shear test, cross wrench is arranged on drilling rod lower end, and enters opening's edge conduit from the drilling rod of job platform and insert downwards, during insertion, utilize drilling coupling extension arm section by section, then start four-bladed vane instrument, by the predetermined depth in cross wrench press-in soil, and carry out vane shear test.
More preferably, in order to ensure the verticality of drilling rod, circular guide plate is fixed with at drilling coupling place, the external diameter of guide plate is greater than the external diameter of drilling rod but is slightly less than the internal diameter of conduit, when drill-string in compression is tested, guide plate is subject to the restriction of duct wall, thus avoids drilling rod to bend.
Preferably, by setting up spreading portion in the bottom of suction bucket, the length-diameter ratio of suction bucket is adjusted.
Compared with prior art, the utility model has following beneficial effect:
(1) the utility model utilizes the negative pressure in suction bucket to implement injection, and penetration process, platform situation are all in controllable state, guarantee the verticality at complexity fluctuating sea bed or riverbed upper mounting plate;
(2) the utility model can utilize ready-made investigation vessel hoisting device, realizes the resource sharing of investigation vessel and test platform, significantly reduces the cost of exploration on water;
(3) the utility model adopts a kind of tub truss basis of Triangle-Profile, the test platform created thus has transport facility, simple installation, low cost, the feature that reusable and security is high, thus make original position field vane shear test rely on this utility model and extend to offshore waters, the requirement of all kinds of bad ground vane shear test of offshore engineering can be met;
(4) the utility model utilizes the adjustment of suction bucket length-diameter ratio (L/D), tub basis depth of penetration can be realized control, improve the stability on compound load action lower platform basis, thus significantly reduce wind, wave, the risk that complicated sea situation forms job platform such as to gush;
(5) in preferred version of the present utility model, the Design of Filter Layer bottom suction bucket, improves the quality of suction bucket basis injection under soft clay ~ sandy soil sea bed negative pressure; Vibrator designs in suction bucket, significantly improves and pulls out ability to rising of whole platform base.
Accompanying drawing explanation
Fig. 1 is a kind of one-piece construction schematic diagram with the waters vane shear test platform on tub truss basis of the utility model.
Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model vane shear test platform.
Fig. 3 is the structural representation of suction pedestal in the utility model.
Fig. 4 is the structural representation of truss module in the utility model.
Fig. 5 is the syndeton schematic diagram of job platform and platform support in the utility model.
Fig. 6 is the schematic diagram utilizing investigation vessel to install the utility model vane shear test platform.
In figure:
10 suction pedestals; 11 suction buckets; 12 reinforcements; 13 draining aspirating holes;
14 hangers; 15 spreading portions; 16 fixed frames; 17 loaded filters;
18 Vib.s; 20 screws; 30 truss modules; 31 support columns;
32 brace summers; 33 brace rods; 34 balancing weights; 40 conduits;
41 conduit sections; 42 conduit box cuplings; 50 platform supports; 51 bottom plates;
52 arc-shaped brackets; 53 mounting plates; 60 job platforms; 61 railings;
62 drilling rod entrances; 71 cross wrench; 72 drilling rods; 73 drilling couplings;
74 guide plates; 80 investigation vessel; 81 negative-pressure ward systems; 82 wire rope;
83 suspension brackets; 85 level meters; 86 water and gas conduits;
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.These embodiments only for illustration of the utility model, and are not limitation of the utility model.
As shown in Figure 1 and Figure 2, a kind of vane shear test platform in waters with tub truss basis of the utility model, comprises suction pedestal 10, truss module 30, conduit 40, platform support 50 and job platform 60.
Wherein, suction pedestal 10 comprises three suction buckets 11 and a fixed frame 16, the bottom opening of suction bucket 11, top seal.Described fixed frame 16 is in equilateral triangle, and three summits of fixed frame 16 are fixedly connected with respectively by the top of screw 20 with described three suction buckets 11; The top of each suction bucket 11 is also provided with draining aspirating hole 13.
Truss module 30 is in regular triangular prism shaped, and it is positioned at the top of fixed frame 16, and three ribs of truss module 30 are fixedly connected with the mid point on three limits of fixed frame 16 respectively.
Conduit 40 extends straight up from the center of suction pedestal 10 and truss module 30, and it is formed by conduit box cupling 42 serial connection by multiple conduit sections 41, and one of them conduit sections 41 is fixedly connected with described truss module 30.
Platform support 50 is fixed on the top of conduit; Job platform 60 is fixedly connected on platform support 50, and the surrounding of job platform 60 is provided with railing 61, and the center of job platform 60 is provided with drilling rod entrance 62, and drilling rod entrance 62 communicates with the inner chamber of conduit 40.
In order to strengthen globality and the stability of suction pedestal 10, be also connected with reinforcement 12 in the outside of any two suction buckets 11.For the ease of lifting suction pedestal 10, be provided with hanger 14 in the outside of each suction bucket 11.
As shown in Figure 5, described platform support 50 is made up of bottom plate 51, mounting plate 53, the many arc-shaped brackets 52 radially upwards extended from bottom plate and the conduit sections 41 be connected between upper and lower supporting plate, the upper end of mounting plate 53 and arc-shaped bracket 52 is used for being connected with the bottom surface of job platform 60, and can larger Area of bearing be formed, make job platform 60 more firm.
In order to understand the utility model further, introducing assembling, sinking, the operation of the utility model test platform referring to Fig. 2 and Fig. 6 and working the process of pulling out.
Preparatory stage: be pre-assembled suction pedestal in investigation vessel 80, and truss module 30 is arranged on fixed frame 16.As shown in Figure 4, truss module 30 is fixedly connected by support column 31, brace summer 32, brace rod 33 and one section of inner conduit sections 41 and forms.Preferably, sink to the initial depth of sea (river) bed in order to increase platform base, can install balancing weight 34 additional on truss module 30, balancing weight 34 can be fixed on the outside of brace summer 32.Further, as shown in Figure 3, spreading portion 15 can be set at the bottom opening place of suction bucket 11, spreading portion 15 is threaded connection the bottom at suction bucket 11, and multistage can be adopted to be connected in series, spreading portion 15 can increase the length (highly) of suction bucket entirety (comprising suction bucket body and spreading portion), the Best Size Ratio (ratio of length and diameter) of suction bucket can be set according to sea bed soil property situation, and realize the depth of penetration control of tub basis, realize the field vane shear test of different soil.Meanwhile, spreading portion 15 increases the length of suction bucket by the mode of assembling, and without the need to suction bucket body is done very long, is convenient to transport and installs.The internal diameter in spreading portion 15 can be a bit larger tham the internal diameter of suction bucket 11, in spreading portion 15, loaded filter 17 can also be set, described loaded filter 17 is fixed in spreading portion 15, the outside of loaded filter 17 is made up of geotextile, inside is particle, inner particle can be gravel, coarse sand or fine sand, can select according to the situation of sea (river) bed soil property.Loaded filter 17 can avoid the depth of penetration forming soil plug in follow-up aspiration procedure, affect suction bucket, thus significantly promotes the stability of whole platform.The draining aspirating hole 13 of each suction bucket 11 connects water and gas conduit 86, is preferably also provided with Vib. 18 in suction bucket 11, the power lead of Vib. 18 is also drawn from draining aspirating hole 13, and will draw position sealing.According to height and the operation facility of the suspension bracket 83 in investigation vessel 80, in suction pedestal and truss module, some sections of conduit sections are first installed, form platform base.
The lifting stage: wear wire rope 82 by hanger 14 on the above-mentioned platform base assembled, utilize the suspension bracket 83 in investigation vessel that platform base is sling, from the moon pool of investigation vessel or outside is outstanding is put in water, and progressively decline, simultaneously progressively spreading conduit 40 in the process transferred, until suction bucket 11 is located on underwater sea (river) bed; And surfaced certain altitude in conduit 40 upper end.
The injection stage: under the effect of platform base deadweight, certain depth in mud can be sunk in the bottom of suction bucket 11, and closed cavity is formed in suction bucket 11, the upper end of water and gas conduit 86 is connected with the negative-pressure ward system 81 in investigation vessel 80, the inside of suction bucket 11 is aspirated and forms negative pressure, make suction bucket 11 overcome the resistance of the soil body, be constantly pressed in foundation soil, until designated depth.
In the injection stage, preferably in the upper end of conduit 40, level meter 85 is installed, at suction bucket 11 by the process of injection foundation soil, according to the display of level meter 85, adjust the swabbing pressure of each suction bucket 11 at any time, when suction pedestal 10 arrives projected depth, make the end face maintenance level of conduit 40, in other words, the axis of conduit is made to keep vertically.
Implementation phase: first remove level meter 85, then platform support 50 is fixed on conduit 40 upper end, then with screw, job platform 60 is fixed on platform support 50.Then, on job platform 60, four-bladed vane instrument can be installed, carry out vane shear test.Before test, first cross wrench 71 is arranged on the lower end of drilling rod 72, and insert downwards from the drilling rod entrance 62 of job platform along conduit 40, during insertion, utilize drilling coupling 73 extension arm section by section, then start four-bladed vane instrument (not shown), cross wrench 71 is pressed into the predetermined depth in soil, then apply torsion by four-bladed vane instrument, measure the parameters such as soil classifiction, thus carry out vane shear test.In order to ensure the verticality of drilling rod 72, can fix circular guide plate 74 at drilling coupling 73 place, the external diameter of guide plate 74 is greater than the external diameter of drilling rod 72 but is slightly less than the internal diameter of conduit 40, when drill-string in compression is tested, guide plate 74 is subject to the restriction of conduit 40 sidewall, thus avoids drilling rod to bend.
Completion is reclaimed: after vane shear test completes, first unload job platform 60, platform support 50 and upper catheter etc.Start to start negative-pressure ward system 81, negative-pressure ward system 81 is made up of intelligent vacuum pump, pressure regulator valve, display panel, aqueous vapor conversion equipment etc., negative-pressure ward system 81 pressurizes (inflation) by water and gas conduit 86 pairs of suction buckets 11, form malleation after suction bucket 11 inner chamber is pressurizeed, produce buoyancy; Connect the power supply of Vib. 18, produce vibration, make to be adsorbed on barrel soil of wall surrounding and shake loose, reduction platform works bucket wall friction power when pulling out; Then utilize suspension bracket 83 tense wire rope in investigation vessel, started to pull out.The buoyancy of suction bucket 11, the vibration of Vib. 18 and the pulling force of wire rope, form powerful uplift force, and platform base hangs on investigation vessel the most at last, guarantees the utility model test platform " under go, surely perpendicular, rise and get ", and can reuse.
The utility model adopts field module assembling design, cost is low, installation is convenient, and can reuse and security high; Adopt negative pressure injection, whole platform base is stablized controlled; Adopt Design of Filter Layer, improve the quality of platform base injection under soft clay ~ sandy soil sea bed negative pressure; The design of Vib., contributes to reducing rising of whole platform base and pulls out friction force; Guarantee different water depth, the test degree of depth, four-bladed vane in-situ test normally carries out under complex working condition.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and replacement, these improve and replace and also should be considered as protection domain of the present utility model.
Claims (6)
1. there is the waters vane shear test platform on tub truss basis, it is characterized in that, comprise with lower component:
Suction pedestal (10), comprise three suction buckets (11) and a fixed frame (16), described fixed frame (16) is in equilateral triangle, and three summits of fixed frame (16) are fixedly connected with the top of described three suction buckets (11) respectively; The top of each suction bucket (11) is also provided with draining aspirating hole (13);
Truss module (30), in regular triangular prism shaped, is positioned at the top of fixed frame (16), and three ribs of truss module (30) are fixedly connected with the mid point on three limits of fixed frame (16) respectively;
Conduit (40), upwards extend from the center vertical of described suction pedestal (10), formed by conduit box cupling (42) serial connection by multiple conduit sections (41), one of them conduit sections (41) is fixedly connected with described truss module (30), and the top of described conduit (40) is provided with platform support (50);
Job platform (60), be fixedly connected on described platform support (50), job platform (60) is provided with drilling rod entrance (62).
2. vane shear test platform according to claim 1, is characterized in that, the bottom opening place of described suction bucket (11) is provided with loaded filter (17).
3. vane shear test platform according to claim 2, is characterized in that, the bottom opening place of described suction bucket is also provided with spreading portion (15), and described loaded filter (17) is fixed in described spreading portion (15).
4. vane shear test platform according to claim 1, is characterized in that, described truss module (30) is fixed with balancing weight (34).
5. vane shear test platform according to claim 1, it is characterized in that, described platform support (50) comprises bottom plate (51), mounting plate (53), the many arc-shaped brackets (52) radially upwards extended from bottom plate and the conduit sections (41) be connected between upper and lower supporting plate.
6. vane shear test platform according to claim 1, is characterized in that, is also fixed with Vib. (18) in each suction bucket (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128692.8U CN204461907U (en) | 2015-03-06 | 2015-03-06 | There is the waters vane shear test platform on tub truss basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128692.8U CN204461907U (en) | 2015-03-06 | 2015-03-06 | There is the waters vane shear test platform on tub truss basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204461907U true CN204461907U (en) | 2015-07-08 |
Family
ID=53668776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520128692.8U Withdrawn - After Issue CN204461907U (en) | 2015-03-06 | 2015-03-06 | There is the waters vane shear test platform on tub truss basis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204461907U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987850A (en) * | 2015-03-06 | 2016-10-05 | 中交第三航务工程勘察设计院有限公司 | Water area vane shear test platform with bucket truss and installation method |
| CN106087928A (en) * | 2016-07-27 | 2016-11-09 | 合肥学院 | A kind of axisymmetric barrel base list lower limb post production platform and construction method thereof |
| CN106437698A (en) * | 2016-09-29 | 2017-02-22 | 中交第三航务工程勘察设计院有限公司 | Underwater platform for exploration sampling or in-situ test and using method thereof |
-
2015
- 2015-03-06 CN CN201520128692.8U patent/CN204461907U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987850A (en) * | 2015-03-06 | 2016-10-05 | 中交第三航务工程勘察设计院有限公司 | Water area vane shear test platform with bucket truss and installation method |
| CN105987850B (en) * | 2015-03-06 | 2018-12-04 | 中交第三航务工程勘察设计院有限公司 | Waters vane shear test platform and installation method with tub truss basis |
| CN106087928A (en) * | 2016-07-27 | 2016-11-09 | 合肥学院 | A kind of axisymmetric barrel base list lower limb post production platform and construction method thereof |
| CN106437698A (en) * | 2016-09-29 | 2017-02-22 | 中交第三航务工程勘察设计院有限公司 | Underwater platform for exploration sampling or in-situ test and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105987850B (en) | Waters vane shear test platform and installation method with tub truss basis | |
| CN103741657B (en) | The construction method of large-sized multifunction waterborne traffic accident | |
| CN109629568A (en) | The process for sinking of the steady stake platform of offshore wind farm jacket foundation steel pipe pile floating | |
| CN104929144A (en) | Deepwater suction type barrel-shaped foundation intermittent penetration equipment and installation method | |
| CN110387884B (en) | Construction method for preventing inrush of ultra-deep foundation pit | |
| CN206205886U (en) | Underwater platform for exploring sampling or in-situ test | |
| CN106437698A (en) | Underwater platform for exploration sampling or in-situ test and using method thereof | |
| CN205917719U (en) | Marine anemometer tower of multi -bucket negative -pressure barrel formula | |
| CN204461907U (en) | There is the waters vane shear test platform on tub truss basis | |
| CN102953341A (en) | Overhead trestle structure built on non-covering steep bare rocks in deep rapids | |
| CN111851522B (en) | Stable sedimentation method for foundation pit construction | |
| CN102979039A (en) | Elevated trestle bridge construction method on covering-free steep bare rock in deepwater and rapid stream | |
| CN108532604A (en) | A kind of steady stake platform construction technique | |
| CN104250968B (en) | From installation suction pile formula moveable platform structure | |
| CN114673153A (en) | Construction method of complex stratum overlength large-diameter pile foundation casing structure | |
| CN110185059B (en) | Suction barrel jacket fan foundation and construction method thereof | |
| CN203373716U (en) | Self-installation suction pile type movable platform structure | |
| CN103374905B (en) | Movable self-installation platform | |
| CN103556972A (en) | Self-installed ocean floor drilling template and installation method thereof | |
| CN108149775A (en) | A kind of prefabricated Boosting pumping station of PE and its mounting process | |
| CN102704512B (en) | Immersed tube bottom jack type deviation rectifying fine adjusting system and adjusting technology | |
| CN102720211B (en) | Wedge type bottom-end deviation fine-rectifying system for immersed pipe and rectifying process of wedge type bottom-end deviation fine-rectifying system | |
| Sparrevik | Offshore wind turbine foundations state of the art | |
| CN110499791B (en) | Method for detecting pulling-resistant bearing capacity of suction bucket | |
| CN204199262U (en) | Simple and easy cylinder stake formula wellhead platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20181204 |
|
| AV01 | Patent right actively abandoned |