CN201903348U - Monitoring device for soil displacement and pore water pressure of seabed - Google Patents
Monitoring device for soil displacement and pore water pressure of seabed Download PDFInfo
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- CN201903348U CN201903348U CN2010206179347U CN201020617934U CN201903348U CN 201903348 U CN201903348 U CN 201903348U CN 2010206179347 U CN2010206179347 U CN 2010206179347U CN 201020617934 U CN201020617934 U CN 201020617934U CN 201903348 U CN201903348 U CN 201903348U
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- water pressure
- wave
- seabed
- pore water
- soil displacement
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Abstract
The utility model discloses a monitoring device for soil displacement and pore water pressure of seabed, comprising a measuring bar and an automatic data acquisition device, wherein the measuring bar is formed by the connection of multiple segments of sleeves, positioned on the bottom of the sea and partially positioned below the mud line of the seabed; the automatic data acquisition device comprises pore water pressure meters, clinometers, current meters and a wave height meter, wherein the clinometers are respectively arranged in the middle parts of the sleeves of the measuring bar below the mud line of the seabed; and the pore water pressure meters are arranged on the joints at two ends of each sleeve of the measuring bar under the mud line of the sea bed respectively. The current meters are arranged at the water surface, the position of one-second water-depth, and the seabed surface respectively; and the wave height meter is positioned on the water surface and can fluctuate along with the water surface, and the movement range of the wave height meter is not smaller than the recorded maximum wave height of the sea surface. The monitoring device can measure not only the environment parameters of wave height, wave direction, wave period, water depth, flow velocity and the like, but also the changes of the soil displacement and the pore water pressure, and facilitate analyzing the influences of wave parameters on the stability of the soil of the seabed.
Description
Technical field
The utility model belongs to the oceanographic engineering field, relates to the measurement mechanism of a kind of ocean environment parameter and seabed soil displacement and pore water pressure.
Background technology
Wave can produce significant dynamic pressure on sea bed in communication process, dynamic pressure can cause the change of sea bed mesoporosity water pressure and effective stress again.Along with the increase of excess pore pressure and reducing of vertical effective stress, unstability may take place in the part sea bed, and when the effective stress of excess pore water pressure above the soil body, the soil body will liquefy.In case liquefy, soil particle just might be taken away by the bottom ocean current as fluid, or along with the quality of wave action generation is moved and moved.In the marine environment, the phenomenon of sea bed unstability happens occasionally.The sea bed unstability generally shows as the soil body and is subjected to displacement, and its limiting form is shear failure, liquefy and wash away.The variation that existing seabed soil body opening presses monitoring device can only measure the pore water pressure of the soil body under wave action, therefore the not variation of land movement under the energy measurement wave action, can't accurately disclose the influence of wave to seabed soil.
The utility model content
The purpose of this utility model is to provide a kind of seabed soil displacement and monitoring pore water pressure device, not only can monitor ocean environment parameter simultaneously, as wave height, wave direction, period of wave, the depth of water and ocean current flow velocity etc., and can monitor the displacement of the different depth soil body and the seabed soil displacement and the monitoring pore water pressure device of pore water pressure.And overcome the deficiency of prior art, made the ocean environment parameter that records can be used for the design of marine structure, simultaneously, the relation of comprehensive wave parameter and land movement and pore water pressure can disclose the relation of element of wave and seabed soil response.
For achieving the above object, solution of the present utility model is:
A kind of seabed soil displacement and monitoring pore water pressure device, it comprises measuring staff and automated data acquisition device, measuring staff is arranged in the seabed, and part is positioned under the sea bed mud line; This automated data acquisition device comprises pore pressure gauge, tiltmeter, current meter and wave-height gauge, and pore pressure gauge and tiltmeter are installed on the measuring staff of sea bed mud line bottom, and current meter and wave-height gauge are installed on the measuring staff on sea bed mud line top.
Described measuring staff is formed by connecting by the sleeve segmentation.
Described tiltmeter is arranged at the centre position of every section sleeve of the measuring staff of sea bed mud line bottom.
Described pore pressure gauge is arranged at the joint, two ends of every section sleeve of the measuring staff of sea bed mud line bottom.
Centre position, described sleeve top is provided with the signal cable hole, and the signal cable of automated data acquisition device passes in the middle of sleeve, passes through the signal cable hole and is connected to host computer.
The every segment length 1m of described sleeve.
Adopt between the described sleeve and be threaded.
The diameter of described sleeve is greater than the diameter of pore pressure cell.
Described current meter is provided with three, lays respectively at the water surface, 1/2 depth of water position and sea bed face position.
Described wave-height gauge is positioned at water surface site, and wave-height gauge can be with water surface dipping and heaving, and its scope of activities is not less than the historical maximum wave height on sea.
The utility model not only can be measured environmental parameters such as wave height, wave direction, period of wave, the depth of water, flow velocity in real time, can also monitor the variation of land movement of different depth place and pore water pressure, is convenient to analyze the influence of element of wave to seabed soil stability.
Owing to adopt such scheme, the utility model not only can be measured the variation of the pore water pressure of the soil body under wave action, the relation of all right comprehensive wave parameter and land movement and pore water pressure, embody the relation of element of wave and seabed soil response, thereby accurately disclose the influence of wave seabed soil.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing illustrated embodiment the utility model is further described.
The ocean environment parameter that seabed soil displacement of the present utility model and monitoring pore water pressure device record can be used for the design of marine structure, simultaneously, the relation of comprehensive wave parameter and land movement and pore water pressure can disclose the relation of element of wave and seabed soil response.
As shown in Figure 1, be structural representation of the present utility model.The utility model is made up of measuring staff 7 and automated data acquisition device, and measuring staff 7 is divided into sea bed face (being called mud line again) generally with top and the part below the sea bed face; Automated data acquisition device is arranged on the measuring staff, comprises pore pressure gauge 2, tiltmeter 3, wave-height gauge 5 and current meter 6, and prior art only comprises measuring staff 7 and pore pressure gauge 2.Measuring staff is connected by segmentation sleeve 1, and signal cable hole 8 is arranged at the centre position on upper sleeve top, and the signal cable of each measurement instrument passes in the middle of sleeve, passes through signal cable hole 8 and is connected to host computer; Be positioned at the measuring staff part of mud line below 4, the length of each section sleeve can require to determine, generally can be taken as 1m according to clay distribution situation and measuring accuracy; Sleeve two end connectors are provided with pore pressure gauge 2, and the sleeve centre position is provided with tiltmeter 3, and the diameter of sleeve can determine that general sleeve diameter is greater than the size of pore pressure cell according to the size of selected pore pressure gauge.Be positioned at the measuring staff part of mud line more than 4, three current meters 6 are set, be respectively top 61, middle part 62 and bottom 63, promptly near the water surface, three places settle three current meters respectively near 1/2 depth of water position and the sea bed face; Being provided with near the measuring staff water surface site can be with the wave-height gauge 5 of water surface dipping and heaving, and scope of activities must not be less than historical maximum wave height.
The utility model can be measured environmental parameter and land movement of different depth place and pore water pressures such as wave height, wave direction, period of wave, the depth of water, flow velocity in real time, parameters such as wave height, period of wave, wave direction and the depth of water can be recorded by wave-height gauge 5, flow velocity is then recorded by current meter 6, land movement is recorded by tiltmeter 3, and pore water pressure is recorded by pore pressure gauge 2.Obtained these parameters, just can analyze the influence of element of wave seabed soil stability.Instruments such as wave-height gauge, current meter and pore pressure gauge can be selected according to the requirement of measuring accuracy, and its concrete installation site is as the criterion conveniently to record parameters needed.
The above-mentioned description to embodiment is can understand and use the utility model for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the utility model is not limited to the embodiment here, and those skilled in the art should be within protection domain of the present utility model for improvement and modification that the utility model is made according to announcement of the present utility model.
Claims (10)
1. seabed soil displacement and monitoring pore water pressure device, it comprises measuring staff and automated data acquisition device, measuring staff is arranged in the seabed, and part is positioned under the sea bed mud line, it is characterized in that: this automated data acquisition device comprises pore pressure gauge, tiltmeter, current meter and wave-height gauge, pore pressure gauge and tiltmeter are installed on the measuring staff of sea bed mud line bottom, and current meter and wave-height gauge are installed on the measuring staff on sea bed mud line top.
2. seabed soil displacement as claimed in claim 1 and monitoring pore water pressure device is characterized in that: described measuring staff is formed by connecting by the sleeve segmentation.
3. seabed soil displacement as claimed in claim 2 and monitoring pore water pressure device is characterized in that: described tiltmeter is arranged at the centre position of every section sleeve of the measuring staff of sea bed mud line bottom.
4. seabed soil displacement as claimed in claim 2 and monitoring pore water pressure device is characterized in that: described pore pressure gauge is arranged at the joint, two ends of every section sleeve of the measuring staff of sea bed mud line bottom.
5. seabed soil displacement as claimed in claim 2 and monitoring pore water pressure device, it is characterized in that: centre position, described sleeve top is provided with the signal cable hole, the signal cable of automated data acquisition device passes in the middle of sleeve, passes through the signal cable hole and is connected to host computer.
6. seabed soil displacement as claimed in claim 2 and monitoring pore water pressure device is characterized in that: the every segment length 1m of described sleeve.
7. seabed soil displacement as claimed in claim 2 and monitoring pore water pressure device is characterized in that: adopt between the described sleeve to be threaded.
8. seabed soil displacement as claimed in claim 2 and monitoring pore water pressure device is characterized in that: the diameter of described sleeve is greater than the diameter of pore pressure cell.
9. seabed soil displacement as claimed in claim 2 and monitoring pore water pressure device is characterized in that: described current meter is provided with three, lays respectively at the water surface, 1/2 depth of water position and sea bed face position.
10. seabed soil displacement as claimed in claim 2 and monitoring pore water pressure device is characterized in that: described wave-height gauge is positioned at water surface site, and wave-height gauge is with water surface dipping and heaving, and its scope of activities is not less than the historical maximum wave height on sea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206179347U CN201903348U (en) | 2010-11-22 | 2010-11-22 | Monitoring device for soil displacement and pore water pressure of seabed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206179347U CN201903348U (en) | 2010-11-22 | 2010-11-22 | Monitoring device for soil displacement and pore water pressure of seabed |
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| Publication Number | Publication Date |
|---|---|
| CN201903348U true CN201903348U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206179347U Expired - Fee Related CN201903348U (en) | 2010-11-22 | 2010-11-22 | Monitoring device for soil displacement and pore water pressure of seabed |
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| CN (1) | CN201903348U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435176A (en) * | 2011-11-14 | 2012-05-02 | 上海交通大学 | Device and method for measuring response to fluctuating pressure of wind generated wave lakebed of shallow lake |
| CN102953366A (en) * | 2012-11-27 | 2013-03-06 | 天津水运工程勘察设计院 | Monitoring device for foundation of floating hydraulic structure in shallow sea area |
| CN104165980A (en) * | 2014-06-16 | 2014-11-26 | 同济大学 | Experimental device with soil horizontal displacement and pressure integrated observation assembly |
| CN104990765A (en) * | 2015-07-10 | 2015-10-21 | 华南理工大学 | Instrument and method for monitoring inshore and estuary sedimentary layer pore water |
| CN105486348A (en) * | 2015-12-29 | 2016-04-13 | 中国船舶重工集团公司第七�三研究所 | Novel test member |
| CN106768847A (en) * | 2017-02-14 | 2017-05-31 | 华侨大学 | The analogy method and device of a kind of Potential of Seabed Under Wave Loading liquefaction water-jet depth |
| CN110047250A (en) * | 2019-05-24 | 2019-07-23 | 安徽工程大学 | A kind of landslide monitoring and early warning shearing lever apparatus and landslide monitoring method for early warning |
| CN112254864A (en) * | 2020-10-16 | 2021-01-22 | 中国海洋大学 | Device for in-situ real-time monitoring pore pressure of sediment and seabed deformation and distribution method |
| CN110047250B (en) * | 2019-05-24 | 2024-04-26 | 安徽工程大学 | Landslide monitoring and early warning shear bar device and landslide monitoring and early warning method |
-
2010
- 2010-11-22 CN CN2010206179347U patent/CN201903348U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435176A (en) * | 2011-11-14 | 2012-05-02 | 上海交通大学 | Device and method for measuring response to fluctuating pressure of wind generated wave lakebed of shallow lake |
| CN102435176B (en) * | 2011-11-14 | 2013-06-19 | 上海交通大学 | Device and method for measuring response to fluctuating pressure of wind generated wave lakebed of shallow lake |
| CN102953366A (en) * | 2012-11-27 | 2013-03-06 | 天津水运工程勘察设计院 | Monitoring device for foundation of floating hydraulic structure in shallow sea area |
| CN104165980A (en) * | 2014-06-16 | 2014-11-26 | 同济大学 | Experimental device with soil horizontal displacement and pressure integrated observation assembly |
| CN104165980B (en) * | 2014-06-16 | 2016-04-20 | 同济大学 | A kind of experimental provision observing assembly with earth horizontal displacement and pressure one |
| CN104990765A (en) * | 2015-07-10 | 2015-10-21 | 华南理工大学 | Instrument and method for monitoring inshore and estuary sedimentary layer pore water |
| CN105486348A (en) * | 2015-12-29 | 2016-04-13 | 中国船舶重工集团公司第七�三研究所 | Novel test member |
| CN106768847A (en) * | 2017-02-14 | 2017-05-31 | 华侨大学 | The analogy method and device of a kind of Potential of Seabed Under Wave Loading liquefaction water-jet depth |
| CN106768847B (en) * | 2017-02-14 | 2018-11-27 | 华侨大学 | A kind of analogy method and device of Potential of Seabed Under Wave Loading liquefaction water-jet depth |
| CN110047250A (en) * | 2019-05-24 | 2019-07-23 | 安徽工程大学 | A kind of landslide monitoring and early warning shearing lever apparatus and landslide monitoring method for early warning |
| CN110047250B (en) * | 2019-05-24 | 2024-04-26 | 安徽工程大学 | Landslide monitoring and early warning shear bar device and landslide monitoring and early warning method |
| CN112254864A (en) * | 2020-10-16 | 2021-01-22 | 中国海洋大学 | Device for in-situ real-time monitoring pore pressure of sediment and seabed deformation and distribution method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20141122 |
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| EXPY | Termination of patent right or utility model |