CN103790189A - Site early warning method for pile slipping in oceanographic engineering piling process - Google Patents
Site early warning method for pile slipping in oceanographic engineering piling process Download PDFInfo
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Abstract
The invention relates to a site early warning method for pile slipping in the oceanographic engineering piling process. The site early warning method includes the following steps: a sensor is installed on a steel pipe pile and connected with a piling data collecting and analyzing device through a connector and a cable, the piling data collecting and analyzing device is debugged and prepared, and corresponding protection measures are taken to the connector of the sensor and the cable; when a pile hammer is used for piling, the steel pipe pile is tested, the site force and speed monitoring data collected by the piling data collecting and analyzing device are output to form a data file to be led into a computer, and meanwhile the singular point force and speed data are processed in the piling process to provide real-time warnings on pile slipping dangerous points, timely reduce the hammering frequency and the hammering energy of the piling hammer and control the single-hammer injection degree of the steel pipe pile. According to the site early warning method, whole-process monitoring and real-time early warning in the oceanographic engineering piling process can be achieved, and influences of the site environment and the construction condition on the piling process can be monitored in a real-time mode.
Description
Technical field
The present invention relates to slip the method for early warning of stake, relate in particular to a kind of on-the-spot method for early warning that slips stake in ocean engineering piling process.Belong to Offshore Engineering field.
Background technology
Install in piling process in ocean engineering, due to complexity and the polytropy of Marine Geology environment, in piling process, easily produce and slip the phenomenon of stake, that is: in certain section of depth of penetration of stake hammering number be zero or stake under deadweight or pile monkey compound action, there is excessive phenomenon in pile penetration.Bring great potential safety hazard to construction.Slip stake harm be mainly reflected in following several aspect:
(1) affect piling construction device security:
Occur often more suddenly owing to slipping stake, slip in a process, the subsidence velocity of piling bar is too fast, gently can thrust wire rope, causes de-hammer, breaks pile monkey control line, damages hydraulic hammer; Heavy cause pile monkey landing sea, the accident such as cause that pile monkey is scrapped.And owing to controlling pipeline more complicated under water, the control line that the stake of slipping causes is wound around and may damages underwater robot.Thus, installation may be stagnated for a long time, causes tremendous economic loss.
(2) affect the progress of piling construction:
If not at all do not prepared slipping stake, significantly slip after stake, if control improperly, easily cause the generation of de-hammer.And after de-hammer, just must re-start and recognize stake under water.Under ocean condition complicated situation, can have a strong impact on construction speed.
(3) cause the infringement of stake own:
If slipping stake occurs suddenly, because pile foundation sinking inertia is excessive, easily cause the bounce-back of a moment, this will make pile body produce very large tensile stress, easily cause pile foundation breakage, produce crack, broken pile even.
At present, for the problem of slipping occurring in piling process, conventionally, it is all the result according to geologic prospect, adopt bearing capacity of pile foundation theory to calculate the bearing capacity of pile foundation, then, then according to prediction bearing capacity and the stressing conditions of actual pile foundation contrast, in advance to slip stake produce a position predict.In ocean engineering piling process, its extraneous factor more complicated, cannot consider the impact of on-the-spot complex environment and execution conditions all sidedly, and adopts the computational methods of general significance, and its forecasting accuracy is generally lower.Therefore,, to slipping the giving warning in advance an of phenomenon, can build up smoothly equal tool for marine guidance piling construction and whole engineering and be of great significance.
Summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that prior art exists, in a kind of ocean engineering piling process, slip the on-the-spot method for early warning of stake and provide, it not only can carry out complete monitoring and real-time early warning to ocean engineering piling process, and, can the impact on piling process on the environment of real-time monitoring site and execution conditions, improve widely the accuracy of early warning, effectively avoided calculating and predicted the defect that cannot comprehensively consider on-the-spot complex conditions; Meanwhile, can also guide field constructor adjust timely pile hammer ability, hammering frequency and control the degree of depth of single pile injection, reduced and slipped the engineering risk that stake causes; To building up smoothly of marine guidance piling construction and whole engineering, provide technical support.
The object of the invention is to be realized by following technical scheme:
In ocean engineering piling process, slip stake an on-the-spot method for early warning, it is characterized in that: adopt following steps:
The first step: the steel pipe pile that needs are monitored carries out land preparation; Preparation comprises:
(1) several sensors are installed on steel pipe pile, and several sensors are connected with pile data acquisition and analysis device by joint and cable;
(2) piling equipment data acquisition analyzing is debugged and prepared;
(3) on sensor connector and cable, apply corresponding safeguard measure, to tackle complexity, severe marine environment;
Second step: in the time that pile hammer is driven piles, steel pipe pile is tested;
The concrete steps of test are as follows:
(1) power arriving by pile data acquisition and analysis device collection site driving monitoring, the data of speed;
(2) on-the-spot power pile data acquisition and analysis device being collected, the monitor data of speed are exported, and to form data file, and import computer;
(3) power by computer, piling being monitored, the data of speed are carried out real-time analysis, and the distinguished point power in piling process, the data of speed are processed, to slipping a dangerous spot proposition real-time early warning;
(4) reduce in time hammering frequency and the hammering energy of pile hammer, control single hammer pile penetration of steel pipe pile, reduce and slip the engineering risk of stake.
Described pile data acquisition and analysis device comprises: computer, the data collecting instrument, the pile driving analyzer that are connected with computer respectively.
In the described first step, on sensor connector and cable, apply safeguard measure and comprise: the hanger that attached cable is set on cable; Put protection bed course at covers disposed on sensor.
In described second step, in the time that pile hammer is driven piles, in the process that steel pipe pile is tested, if desired, need to there is underwater robot to coordinate field monitoring.
Beneficial effect of the present invention: the present invention is owing to adopting technique scheme, it not only can carry out complete monitoring and real-time early warning to ocean engineering piling process, and, can the impact on piling process on the environment of real-time monitoring site and execution conditions, improve widely the accuracy of early warning, effectively avoided calculating and predicted the defect that cannot comprehensively consider on-the-spot complex conditions; Meanwhile, can also guide field constructor adjust timely pile hammer ability, hammering frequency and control the degree of depth of single pile injection, reduced and slipped the engineering risk that stake causes; To building up smoothly of marine guidance piling construction and whole engineering, provide technical support.Accompanying drawing explanation
Fig. 1 is overall structure connection diagram of the present invention.
Fig. 2 is control flow chart of the present invention.
Fig. 3 A is field monitoring situation schematic diagram of the present invention.
Fig. 3 B is on-site data gathering schematic diagram of the present invention.
Fig. 4 A is the present invention's relatively schematic diagram of data of distinguished point power after treatment.
Fig. 4 B is the present invention's relatively schematic diagram of data of distinguished point speed after treatment.
Major label description in figure:
1. pile hammer, 2. steel pipe pile, 3. sensor, 4. pile data acquisition and analysis device, 5. joint, 6. cable.
The specific embodiment
As Fig. 1, shown in Fig. 2, the present invention adopts following steps:
The first step: the steel pipe pile 2 that needs are monitored carries out land preparation; Preparation mainly comprises:
(1) steel pipe pile 2 is carried out to scene boring, then, several sensors 3 are installed on steel pipe pile 2, and several sensors 3 are connected with pile data acquisition and analysis device 4 by joint 5 and cable 6; Wherein, pile data acquisition and analysis device 4 comprises: computer, the data collecting instrument, the pile driving analyzer that are connected with computer respectively;
(2) piling equipment data acquisition analyzing 4 is debugged and prepared;
(3) on sensor 3 joints 5 and cable 6, apply corresponding safeguard measure, to tackle complexity, severe marine environment; Wherein, safeguard measure mainly comprises, on cable 6, hanger is set, and in order to attached cable 6, prevents the swing of cable 6 in water, affects the work of sensor 3; Protection bed course is set on sensor 3, in order to protect sensor 6, prevents other facilities under water, as: the possible shock of underwater robot (ROV) etc. causes damage to sensor 6.
Second step: as shown in Fig. 3 A-Fig. 4 B, in the time that pile hammer 1 is driven piles, steel pipe pile 1 is tested; The concrete steps of test are:
(1) power arriving by pile data acquisition and analysis device 4 collection site driving monitoring, the data of speed;
(2) on-the-spot power pile data acquisition and analysis device 4 being collected, the monitor data of speed are exported, and to form data file, and import computer;
(3) power by computer, piling being monitored, the data of speed are carried out real-time analysis, and the distinguished point power in piling process, the data of speed are processed, to slipping a dangerous spot, propose real-time early warning, remind constructor to note;
(4) reduce in time hammering frequency and the hammering energy of pile hammer 1, control single hammer pile penetration of steel pipe pile 2, reduce and slip the engineering risk of stake.
Wherein, in the time that pile hammer is driven piles, in the process that steel pipe pile is tested, if desired, need to there is underwater robot (ROV) to coordinate field monitoring.Underwater robot (ROV) is made up of surface facilities and underwater installation; Move by propeller under water, and by operator's control & monitor on above water craft.The scope that utilizes underwater robot (ROV) as: video camera, camera, illuminating lamp etc. are monitored the driving depth of pile foundation, to in time the monitored data of returning is coordinated to contrast with notebook data acquisition system, to guarantee reliability and the accuracy of data.
The sensor, computer, data collecting instrument, pile driving analyzer, the artificial prior art of underwater, the technology of not specified (NS) is prior art.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. in ocean engineering piling process, slip stake an on-the-spot method for early warning, it is characterized in that: adopt following steps:
The first step: the steel pipe pile that needs are monitored carries out land preparation; Preparation comprises:
(1) several sensors are installed on steel pipe pile, and several sensors are connected with pile data acquisition and analysis device by joint and cable;
(2) piling equipment data acquisition analyzing is debugged and prepared;
(3) on sensor connector and cable, apply corresponding safeguard measure, to tackle complexity, severe marine environment;
Second step: in the time that pile hammer is driven piles, steel pipe pile is tested;
The concrete steps of test are as follows:
(1) power arriving by pile data acquisition and analysis device collection site driving monitoring, the data of speed;
(2) on-the-spot power pile data acquisition and analysis device being collected, the monitor data of speed are exported, and to form data file, and import computer;
(3) power by computer, piling being monitored, the data of speed are carried out real-time analysis, and the distinguished point power in piling process, the data of speed are processed, to slipping a dangerous spot proposition real-time early warning;
(4) reduce in time hammering frequency and the hammering energy of pile hammer, control single hammer pile penetration of steel pipe pile, reduce and slip the engineering risk of stake.
2. in ocean engineering piling process according to claim 1, slip the on-the-spot method for early warning of stake, it is characterized in that: described pile data acquisition and analysis device comprises: computer, the data collecting instrument, the pile driving analyzer that are connected with computer respectively.
3. in ocean engineering piling process according to claim 1, slip stake on-the-spot method for early warning, it is characterized in that: in the described first step, on sensor connector and cable, apply safeguard measure and comprise: the hanger that attached cable is set on cable; Put protection bed course at covers disposed on sensor.
4. in ocean engineering piling process according to claim 1, slip stake on-the-spot method for early warning, it is characterized in that: in described second step, in the time that pile hammer is driven piles, in the process that steel pipe pile is tested, if desired, need to there is underwater robot to coordinate field monitoring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410056503.0A CN103790189B (en) | 2014-02-19 | 2014-02-19 | The on-the-spot method for early warning of stake is slipped during ocean engineering piling |
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| CN201410056503.0A CN103790189B (en) | 2014-02-19 | 2014-02-19 | The on-the-spot method for early warning of stake is slipped during ocean engineering piling |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970958A (en) * | 2016-05-27 | 2016-09-28 | 王继忠 | Monitoring and protecting method for pre-cast pile construction |
| CN106522289A (en) * | 2016-12-13 | 2017-03-22 | 上海岩联工程技术有限公司 | Intelligent foundation pile detection device and detection method |
| CN109613939A (en) * | 2019-01-15 | 2019-04-12 | 山东科技大学 | Air pressure regulator in a kind of pile body of anti-slip stake |
| CN111042229A (en) * | 2019-12-26 | 2020-04-21 | 广东精铟海洋工程股份有限公司 | Real-time pile deviation detection and correction system and method |
| CN113668531A (en) * | 2021-09-15 | 2021-11-19 | 天津大学 | Anti-slip pile control device used in installation of ocean large-diameter tubular pile |
| CN113863307A (en) * | 2021-09-15 | 2021-12-31 | 天津大学 | Position-adjustable pile slipping control device used in installation of ocean large-diameter tubular pile |
| CN113882376A (en) * | 2021-09-17 | 2022-01-04 | 湖南铁甲智能技术有限公司 | Pile sinking construction method and construction structure of prestressed pipe pile |
| CN115127764A (en) * | 2022-06-29 | 2022-09-30 | 北京龙智数科科技服务有限公司 | Pile hammer dynamic sensing method, device, equipment and storage medium based on pile machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970958A (en) * | 2016-05-27 | 2016-09-28 | 王继忠 | Monitoring and protecting method for pre-cast pile construction |
| CN106522289A (en) * | 2016-12-13 | 2017-03-22 | 上海岩联工程技术有限公司 | Intelligent foundation pile detection device and detection method |
| CN109613939A (en) * | 2019-01-15 | 2019-04-12 | 山东科技大学 | Air pressure regulator in a kind of pile body of anti-slip stake |
| CN111042229A (en) * | 2019-12-26 | 2020-04-21 | 广东精铟海洋工程股份有限公司 | Real-time pile deviation detection and correction system and method |
| CN111042229B (en) * | 2019-12-26 | 2021-12-28 | 广东精铟海洋工程股份有限公司 | Real-time pile deviation detection and correction system and method |
| CN113668531A (en) * | 2021-09-15 | 2021-11-19 | 天津大学 | Anti-slip pile control device used in installation of ocean large-diameter tubular pile |
| CN113863307A (en) * | 2021-09-15 | 2021-12-31 | 天津大学 | Position-adjustable pile slipping control device used in installation of ocean large-diameter tubular pile |
| CN113882376A (en) * | 2021-09-17 | 2022-01-04 | 湖南铁甲智能技术有限公司 | Pile sinking construction method and construction structure of prestressed pipe pile |
| CN115127764A (en) * | 2022-06-29 | 2022-09-30 | 北京龙智数科科技服务有限公司 | Pile hammer dynamic sensing method, device, equipment and storage medium based on pile machine |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
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Granted publication date: 20160914 |