CN116837812A - Seabed static sounding system and method based on seabed base plate - Google Patents
Seabed static sounding system and method based on seabed base plate Download PDFInfo
- Publication number
- CN116837812A CN116837812A CN202310214886.9A CN202310214886A CN116837812A CN 116837812 A CN116837812 A CN 116837812A CN 202310214886 A CN202310214886 A CN 202310214886A CN 116837812 A CN116837812 A CN 116837812A
- Authority
- CN
- China
- Prior art keywords
- static
- control unit
- seabed
- underwater
- probe
- 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.)
- Pending
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000523 sample Substances 0.000 claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000005259 measurement Methods 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 14
- 230000035515 penetration Effects 0.000 claims description 75
- 239000002131 composite material Substances 0.000 claims description 31
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 9
- 230000008054 signal transmission Effects 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 230000006837 decompression Effects 0.000 claims description 3
- 238000011835 investigation Methods 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 230000007246 mechanism Effects 0.000 abstract description 8
- 238000004064 recycling Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 description 13
- 230000006872 improvement Effects 0.000 description 8
- 239000013307 optical fiber Substances 0.000 description 8
- 238000005553 drilling Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Soil Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of ocean downhole static sounding, in particular to a seabed static sounding device and method based on a seabed base plate, comprising an on-water control unit, an underwater control unit and a data transmission system; the underwater control unit comprises a photoelectric measurement and control cabin and a static cone-in system, and the static cone-in system comprises a static cone-in probe connected with the photoelectric measurement and control cabin. According to the invention, the double-motor mechanism is adopted, the probe rod can be clamped through the double motors, and the penetrating or recycling effect of the probe rod is realized through the operation of the double motors, so that the penetrating and recycling of the probe rod are realized through the rotation of the motors, and meanwhile, the uniform-speed coning effect can be realized, and the situation that coning data are discontinuous due to excessive coning times in the prior art is avoided. Moreover, the arrangement of the double-motor mechanism can avoid the situation that the probe rod is shifted.
Description
Technical Field
The invention relates to the technical field of ocean static sounding, in particular to a seabed static sounding system and method based on a seabed base plate.
Background
Static sounding refers to a method for obtaining physical and mechanical properties of a soil layer by penetrating a probe rod into the deep part of the soil layer by using pressure equipment. The penetration modes of the conventional offshore static cone penetration device include underground type, lifting platform type, seabed type and the like. The underground type marine drilling machine needs to be matched with a large marine drilling machine for running a sleeve, and the cost is high; the lifting platform is suitable for environments with limited water depth, and has high requirements on stormy waves; the light seabed type penetration is insufficient, and is suitable for the construction of a submerged area.
At present, the marine static cone penetration operation adopts an open drilling process, has high operation cost and low efficiency, and adopts a mode of adding a drill rod and increasing the number of cone penetration times to reach a preset cone penetration horizon, so that cone penetration data is discontinuous.
In detail, in the prior art, a mode of adding drill rods and increasing the number of coning times is generally adopted to reach a predetermined coning level, when the number of drill rods added is excessive, the situation that the positions of the drill rods are deviated easily occurs, and the increase of the number of coning times can influence the continuity of coning data.
Therefore, there is a need for a seabed static sounding system and method based on a seabed base, which can solve the problems of high drilling cost, low efficiency and discontinuous coning data in the prior art.
Disclosure of Invention
The invention aims at: in order to solve the problems in the prior art, the invention provides a seabed static sounding device and method based on a seabed base plate.
In order to solve the problems existing in the prior art, the invention adopts the following technical scheme:
a seabed static sounding system based on a seabed base plate comprises an overwater control unit, an underwater control unit and a transmission system;
the water control unit is used for remotely controlling and communicating data with the underwater control unit;
the underwater control unit is used for underwater power supply and information acquisition;
the transmission system is respectively connected with the water control unit and the underwater control unit and is used for power supply and signal transmission between the water control unit and the underwater control unit;
the underwater control unit comprises a photoelectric measurement and control cabin and a static cone-in system, wherein the static cone-in system comprises a static cone-in probe connected with the photoelectric measurement and control cabin, and the static cone-in probe is used for information acquisition and transmitting acquired information back to the photoelectric measurement and control cabin.
As an improvement of the technical scheme of the seabed static cone penetration system based on the seabed base plate, the seabed static cone penetration system based on the seabed base plate comprises a static cone penetration device, the static cone penetration device comprises a static cone penetration probe and a centralizer, the static cone penetration probe is connected with a probe rod, and the static cone penetration probe is arranged in the centralizer and the seabed base plate in a penetrating mode through the probe rod.
As an improvement of the technical scheme of the seabed type static cone penetration system based on the seabed base plate, two motors which are arranged in opposite directions are arranged on the seabed base plate, the two motors are a first motor and a second motor respectively, a first friction wheel is arranged on a main shaft of the first motor, a second friction wheel is arranged on a main shaft of the second motor, the first friction wheel and the second friction wheel are symmetrically arranged, and the probe rod is clamped between the first friction wheel and the second friction wheel;
the guide sleeve is arranged below the first friction wheel and the second friction wheel, the guide sleeve is arranged above the sea base plate, and the probe rod is arranged in the guide sleeve in a penetrating mode.
As an improvement of the technical scheme of the seabed static cone penetration system based on the seabed base plate, the static cone penetration system further comprises a displacement sensor, a water depth sensor, a off-bottom altimeter and a posture meter which are respectively connected with the photoelectric measurement and control cabin.
As an improvement of the technical scheme of the seabed static sounding system based on the seabed base plate, the water control unit comprises a deck relay box, and a step-up transformer is arranged in the deck relay box;
the underwater control unit further comprises an underwater power supply unit, the photoelectric measurement and control cabin is respectively connected with the static cone-in system and the underwater power supply unit, and the underwater power supply unit comprises a step-down transformer;
the transmission system comprises an optoelectronic composite cable;
the ship is electrically connected into the deck relay box, and the ship is transmitted to the underwater control unit through the photoelectric composite cable after passing through the step-up transformer; and after passing through the decompression transformer in the underwater control unit, outputting power transmission to other electric equipment.
As an improvement of the technical scheme of the seabed static cone penetration system based on the seabed base plate, the transmission system further comprises a winch, wherein the winch is connected with the photoelectric composite cable and is used for controlling lifting of the photoelectric composite cable.
As an improvement of the technical scheme of the seabed type static cone penetration system based on the seabed base plate, the static cone penetration system comprises two high-voltage motors, a displacement sensor, a static cone penetration probe and a probe rod which are respectively connected with the photoelectric measurement and control cabin, wherein the upper end of the probe rod is connected with an umbilical cable;
the static cone penetration probe comprises one or more of a cone tip resistance sensor, a side wall friction sensor, a pore water pressure sensor and an inclination sensor.
As an improvement of the technical scheme of the seabed static cone penetration system based on the seabed base plate, the water control unit is integrated in an instrument room; the water control unit further comprises a central control cabinet, wherein a computer is arranged in the central control cabinet, and the computer is internally provided with sea base monitoring software and static sounding data recording software; the static cone penetration data recording software is used for recording cone tip resistance, side wall friction force, pore water pressure and inclination, and probe coning depth and/or displacement data;
the central control cabinet is connected with the photoelectric measurement and control cabin, and data information detected by the static sounding probe is transmitted to the water control unit through the photoelectric measurement and control cabin.
As an improvement of the technical scheme of the seabed static cone penetration system based on the seabed base plate, the underwater control unit further comprises a photoelectric separation box and a motor control cabin, and the motor control cabin is further connected with the high-voltage motor.
A seabed static sounding method based on a seabed base plate comprises the following steps:
s1, after the investigation ship reaches a static sounding station, starting dynamic positioning.
S2, after dynamic positioning is stable, opening a moon pool cover, and stably lowering a static sounding device through a left-right constant tension winch to stop at the sea level position of the moon pool;
s3, installing a centralizer, closing a moon pool cover, standing by an operator on the moon pool cover to add a probe rod to the static cone penetration device, and gradually lowering the static cone penetration device; until a probe rod with enough length is added;
s4, stably lowering the static sounding device to the seabed through the left and right constant tension winches;
s5, the static cone penetration device starts power supply, and the probe rod starts to taper;
s6, coning to a preset depth, and stopping coning
And S7, stably recovering the static sounding device to the moon pool through the left and right constant tension winches.
The invention has the beneficial effects that:
1. by increasing the supply voltage and reducing the supply current, the loss of electrical energy on the cable is reduced.
2. The monitoring camera devices such as the illuminating lamp and the video recorder ensure that operators monitor the state of the submarine static cone penetration device, are favorable for observing the state of equipment in real time, evaluating the quality of acquired data and timely coping with emergency;
3. the umbilical cable is connected with the probe rod, the constant tension function of the centralizer and the umbilical cable ensures the vertical state of the probe rod, the centralizing mechanism of the probe rod is greatly simplified, and the length and the coning depth of the probe rod are increased;
4. through the dual-motor centre gripping probe rod, realize the penetration and the recovery of drive probe rod through the rotation of dual-motor, simultaneously, not only can realize the effect of uniform velocity coning, still avoided coning times too much like prior art, and lead to coning data discontinuous condition to appear.
Drawings
FIG. 1 is a block diagram of the electrical components of the seabed static sounding system based on the seabed base plate of the present invention;
FIG. 2 is a schematic view of an angle structure of a static cone penetration device in a seabed type static cone penetration system based on a seabed type base plate;
fig. 3 is a schematic view of two angle structures of a static cone penetration device in a seabed static cone penetration system based on a seabed base plate.
Reference numerals illustrate: 1-a central control cabinet; 2-deck trunking; 3-winch; 4-photoelectric composite cable; 5-a photoelectric measurement and control cabin; 6-static cone penetration probe; 7-a displacement sensor; 8-a water depth sensor; 9-off-bottom altimeter; 10-attitude instrument; 11-an underwater camera; 12-an underwater lighting lamp; 13-a photo separation cartridge; 14-an underwater power supply cabin; 15-a motor control switch compartment; 16-high voltage motor; 17-a subsea base plate; 18-a probe rod; 19-moon pool cover; 20-umbilical cord; 21-a guide wheel; 22-centralizer.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments of the present invention.
As shown in fig. 1 to 3, a seabed static sounding system based on a seabed base 17 comprises a water control unit, an underwater control unit and a transmission system;
the water control unit is used for remotely controlling and communicating data with the underwater control unit;
the underwater control unit is used for underwater power supply and information acquisition;
the transmission system is respectively connected with the water control unit and the underwater control unit and is used for power supply and signal transmission between the water control unit and the underwater control unit;
the underwater control unit comprises a photoelectric measurement and control cabin 5 and a static cone-in system, wherein the static cone-in system comprises a static cone-in probe 6 connected with the photoelectric measurement and control cabin 5, and the static cone-in probe 6 is used for information acquisition and transmitting the acquired information back to the photoelectric measurement and control cabin 5.
In detail, in the invention, information is acquired through the static cone penetration probe 6, and the acquired information is transmitted back to the photoelectric measurement and control cabin 5, namely, the effect of coning and obtaining coning data is realized through the static cone penetration probe 6.
Then, as the water control unit and the underwater control unit are connected through the transmission system, the coning data obtained by the static cone penetration probe 6 can be transmitted back to the water control unit, so that workers can know to obtain the coning data. The photoelectric measurement and control cabin 5 is used for receiving and executing control commands of the water control unit, or feeding back monitoring information obtained by various underwater devices into the water control unit.
The underwater control unit is used for remotely controlling and communicating data with the underwater control unit, and the underwater control unit is used for receiving and executing the control command of the underwater control unit or feeding back monitoring information of various underwater equipment to the underwater control unit. The transmission system is used for connecting the water control unit and the underwater control unit, so that the effects of data transmission, execution of control commands and the like can be realized between the water control unit and the underwater control unit.
The invention is based on the submarine basal disc 17 and comprises a static cone penetration device, wherein the static cone penetration device comprises a centralizer 22 and a static cone penetration probe 6, the static cone penetration probe 6 is connected with a probe rod 18, and the static cone penetration probe 6 is arranged in the centralizer 22 and the submarine basal disc 17 in a penetrating way through the probe rod 18;
the sea base plate 17 is provided with two high-voltage motors 16 which are arranged in opposite directions, the two high-voltage motors 16 are respectively a first motor and a second motor, a first friction wheel is arranged on a main shaft of the first motor, a second friction wheel is arranged on a main shaft of the second motor, the first friction wheel and the second friction wheel are symmetrically arranged, and the probe rod 18 is clamped between the first friction wheel and the second friction wheel.
In the invention, the double-motor mechanism is adopted, the probe rod 18 can be clamped through the double motors, and the penetrating or recycling effect of the probe rod 18 is realized through the operation of the double motors, so that the penetrating and recycling of the probe rod 18 are realized through the rotation of the motors, and meanwhile, the uniform-speed coning effect can be realized, and the condition that coning data are discontinuous due to excessive coning times in the prior art is avoided. Moreover, the arrangement of the double motor mechanism can avoid the situation that the probe rod 18 is shifted.
When the double-motor mechanism adopted in the invention is used, the two motors must act at the same speed, otherwise, uneven stress of the drill bit can be caused, and the condition of tilting or damaging the drill bit can occur; because the two motors are arranged in opposite directions, the rotation directions of the first friction wheel and the second friction wheel are opposite, and the effect of synchronously driving the penetration or recovery of the probe rod 18 is realized.
In the invention, the first motor and the second motor are servo motors, namely, the first friction wheel and the second friction wheel are driven by the servo motors, and the accuracy of the penetrating or recovering distance of the probe 18 is controlled by the servo motors.
In detail, the servo motor outputs an automatic control system whose controlled quantity can follow any change of an input target (or a given value). The servo is mainly positioned by the pulse, in short, the servo motor receives 1 pulse and rotates by an angle corresponding to 1 pulse, so that displacement is realized. Thus, the system can know the pulse number to the servo motor and the pulse number to be received, and can accurately control the rotation of the motor, thereby realizing accurate positioning and reaching 0.001mm. At present, an alternating current synchronous motor is generally used in motion control, and has a large power range and can achieve large power. Large inertia, and is suitable for low-speed stable operation. The servo motor is used as an executing element, and the performance of the servo motor is extremely important.
Furthermore, the guide sleeve is arranged below the first friction wheel and the second friction wheel and above the seabed base 17, the probe rod 18 is arranged in the guide sleeve in a penetrating mode, the position of the probe rod 18 is further limited through the guide sleeve, the situation that the probe rod 18 is shifted in the penetrating or recycling process is avoided, and the accuracy of coning data is prevented from being influenced due to the fact that the probe rod 18 is shifted in position.
The static sounding device further comprises the seabed base plate 17, a moon pool cover 19 and a plurality of guide wheels 21, the probe rod 18 is arranged in the centralizer in a penetrating mode, the lower end of the probe rod 18 is connected with the static sounding probe 6, the guide wheels 21 are arranged on the periphery of the seabed base plate 17, and the static sounding device with the centralizer 22, the probe rod 18 and the static sounding probe 6 can be lowered to the seabed through the constant tension winch. The upper end of the probe rod 18 is connected with an umbilical cable 20, the umbilical cable 20 is connected with the probe rod 18, the upright state of the probe rod is ensured by the constant tension function of the centralizer 22 and the umbilical cable 20, the centralizing mechanism of the probe rod is greatly simplified, and the length and the coning depth of the probe rod are increased.
The static coning system also comprises a displacement sensor 7, a water depth sensor 8, a bottom-off altimeter 9 and an attitude meter 10 which are respectively connected with the photoelectric measurement and control cabin 5. Further, the static cone-in system also comprises an underwater illuminating lamp 12 and an underwater camera 11,
the displacement sensor 7 is used for acquiring the penetration depth of the static cone penetration probe 6; the water depth sensor 8 is used for detecting the water depth of the position where the invention is positioned; the off-bottom altimeter 9 is used for measuring the height of the invention from the sea bottom; the attitude meter 10 is used for detecting the attitude of an underwater control unit, so that the situation that the probe rod 18 is shifted in position and the probe is inaccurate in detection is avoided.
The water control unit comprises a deck relay box 2, and a step-up transformer is arranged in the deck relay box 2; the underwater control unit further comprises an underwater power supply unit, the photoelectric measurement and control cabin 5 is respectively connected with the static cone-in system and the underwater power supply unit, and the underwater power supply unit comprises a step-down transformer; the transmission system comprises an opto-electronic composite cable 4.
The ship is electrically connected into the deck relay box 2, and is transmitted to an underwater control unit through the photoelectric composite cable 4 after passing through the step-up transformer; and after passing through the decompression transformer in the underwater control unit, outputting power transmission to other electric equipment.
In use, the central control cabinet 1 is connected to the deck trunk 2 through a surface optical cable assembly, enters power supply monitoring and control such as power supply on-off control and the like, and is connected to data optical fibers in the optical-electrical composite cable 4 for communication with an underwater control unit. Wherein the deck relay box 2 is positioned near the winch 3 of the photoelectric composite cable 4 or is arranged in the deck cabin of the plate-pushing machine. The ship electricity is connected into the deck relay box 2, passes through the step-up transformer and then is transmitted to the underwater control unit through the photoelectric composite cable 4.
As an example of this embodiment, the deck uses 2800V supply voltage to the subsea equipment end and then to 400V required for the drive motor. By increasing the supply voltage and reducing the supply current, the loss of electrical energy on the cable is reduced. According to the original power consumption of the system, 2800VAC supplied by a deck is reduced to 2700VAC, and an oil-filled underwater transformer with a pressure compensation function is used for reducing 2700VAC to 400VAC.
The three-phase 2800VAC high-voltage cable transmitted from the high-voltage distribution room on the ship passes through the high-voltage input wiring hole of the rear panel of the relay box, then enters the relay box, and three-phase lines A, B, C of the high-voltage cable are respectively connected to A, B, C of the high-voltage input wiring terminal in the relay box and are screwed by nuts. The high-voltage output adopts a cable with the model of CJPJ85/SC, three phase lines A, B, C of the cable are respectively connected to A, B, C of a high-voltage output wiring terminal in the relay box, are screwed by nuts, and are output to the winch 3 of the umbilical cable 20 through a rear panel high-voltage output wiring hole, and are correspondingly connected with 3 high-voltage wires of the photoelectric composite cable 4 of the winch 3 one by one.
The transmission system comprises the photoelectric composite cable 4 and the winch 3, wherein the winch 3 is connected with the photoelectric composite cable 4, and the winch 3 is used for controlling the lifting of the photoelectric composite cable 4. The two are matched with each other and used for power supply and signal transmission. The power supply monitoring collects the electrical parameters of the underwater equipment through the underwater photoelectric measurement and control cabin 5 and transmits the electrical parameters to the water control unit through the photoelectric composite cable 4. The signal transmission comprises static sounding data, control signals, video signals, equipment state information and the like, and the signal transmission is realized through optical fibers in the photoelectric composite cable 4.
Further, the underwater control unit further comprises a photoelectric separation box 13, an underwater power supply cabin 14 and a motor control switch cabin 15, and the motor control switch cabin 15 is further connected with a high-voltage motor 16. The photoelectric separation box 13 is used for separating the photoelectric composite cable 4 into watertight optical fibers and watertight cables. In connection with the above embodiment, when 2800VAC three-phase high voltage enters the underwater power supply cabin 14, the optical fiber communication signal enters the photoelectric measurement and control cabin 5.
The main function of the motor control switch cabin 15 is to control the on-off state of the three-phase 400VAC high voltage by the control voltage from the photoelectric measurement and control cabin 5, thereby achieving the purpose of controlling the operation of the high-voltage motor 16.
The internal unit of the subsea power pod 14 is mainly a step-down transformer. The three-phase high voltage 2800VAC separated from the photoelectric composite cable 4 is input to the underwater power supply cabin 14 through a high voltage transmission cable and a high voltage connector mounted on the cabin body. In the underwater power supply tank 14, two paths of voltages are separated: one path of voltage is three-phase high voltage 400VAC, and the three paths of voltage is directly output into the motor control switch cabin 15 through the three paths of watertight connectors HCBH4M of the cabin body without any step-down treatment; the other voltage is transformed into two-phase voltage 400VAC through a step-down transformer, and is output into the underwater photoelectric measurement and control cabin 15 through a watertight connector BH8M of the cabin body. In normal operation, the cabin is filled with transformer insulating oil.
The water control unit is connected with the underwater control unit through the photoelectric composite cable 4, and when the photoelectric composite cable 4 passes through the photoelectric separation box 13, the watertight cable and the watertight optical fiber are separated.
The underwater control unit comprises an underwater power supply unit, an underwater photoelectric measurement and control cabin 5, a high-voltage motor 16, a static sounding probe 6, various monitoring equipment devices, hydraulic pipelines, watertight cables and the like, wherein the underwater photoelectric measurement and control cabin 5 is a core for information acquisition, control and communication.
The static cone penetration system comprises two high-voltage motors 16, a displacement sensor 7, a static cone penetration probe 6, a probe rod 18 and the like, and is connected to the underwater photoelectric measurement and control cabin 5 and is monitored and controlled by the underwater photoelectric measurement and control cabin, wherein the static cone penetration probe 6 comprises a cone tip resistance sensor, a side wall friction sensor, a pore water pressure sensor and an inclination sensor. As one embodiment of the invention, the cone tip resistance sensor leads out 4 wires, the side wall friction force leads out 4 wires, and the pore water pressure sensor leads out 8 wires; a total of 16 wires are soldered to one terminal behind the main force transmission shaft, the terminal having a total of 18 contacts; a transmission rod is connected, and the tail part of the transmission rod is provided with another terminal which is provided with 4 contacts and a grounding contact; the terminals of the 18 contacts are connected with 16 wires (4 conical tip resistance sensors, 4 side wall friction sensors and 8 hole pressure sensors), a circuit board is arranged behind the terminals, analog-to-digital conversion (AD 7790 and AD 7730) is carried out on signals, the signals are noise-reduced and amplified, and finally the terminals of the 4 contacts at the tail ends of the four wires are led out to be connected, and digital signals are transmitted to the shore. Wherein the attitude gauge 10 is used for detecting the attitude of an underwater unit. The displacement sensor 7 is used to obtain the penetration depth of the probe.
The underwater control unit also comprises an equipment state monitoring component, wherein the equipment state monitoring component comprises a pressure water depth meter, a bottom-off altimeter 9, an underwater illuminating lamp 12, an underwater camera 11, an attitude instrument 10 and the like. The underwater camera 11 is matched with the underwater illuminating lamp 12 and used for submarine monitoring, and the state of the submarine static cone penetration device is monitored by an operator through the arrangement of the illuminating and monitoring camera device.
The power supply is to boost the voltage of the ship electricity access deck relay box 2 through a transformer in the ship electricity access deck relay box, then to be connected with the photoelectric composite cable 4 on the winch 3, to be transmitted to the water through the photoelectric composite cable 4, and then to separate watertight cables and watertight optical fibers through the photoelectric separation box 13. The watertight cable is connected to the underwater power supply unit of the submarine base 17, and transmits power to the pump station motor, and meanwhile, a step-down transformer is arranged, so that power is transmitted to other underwater electric equipment; the power supply monitoring collects the electrical parameters of the underwater equipment through the underwater photoelectric measurement and control cabin 5 and transmits the electrical parameters to the water control unit through the photoelectric composite cable 4. The signal transmission comprises static sounding data, control signals, video signals, equipment state information and the like, and the signal transmission is realized through optical fibers in the photoelectric composite cable 4.
The static cone penetration system comprises two high-voltage motors 16, a displacement sensor 7, a static cone penetration probe 6 and a probe rod 18 which are respectively connected with the photoelectric measurement and control cabin 5, and an umbilical cable 20 is connected to the upper end of the probe rod 18; the umbilical cable 20 is connected with the probe rod 18, the vertical state of the probe rod 18 is guaranteed through the constant tension function of the centralizer 22 and the umbilical cable 20, the centralizing mechanism of the probe rod 18 is greatly simplified, and the length of the probe rod 18 is increased.
The static cone penetration probe 6 comprises one or more of a cone tip resistance sensor, a side wall friction sensor, a pore water pressure sensor and an inclination sensor.
Further, the water control unit is integrated in the instrument room; the water control unit also comprises a central control cabinet 1, wherein a computer is arranged in the central control cabinet 1, and a sea base 17 monitoring software and a static sounding data recording software are operated in the computer; the static cone penetration data recording software is used for recording cone tip resistance, side wall friction, pore water pressure and inclination, and probe coning depth and/or displacement data;
the central control cabinet 1 is connected with the photoelectric measurement and control cabin 5, and data information detected by the static sounding probe 6 is transmitted to the water control unit through the photoelectric measurement and control cabin 5.
In detail, in the present invention, the water control unit is integrated in the instrument room. The water control unit comprises a central control cabinet 1 and a deck relay box 2, wherein the central control cabinet 1 is internally integrated with a direct-current power supply, an industrial flat-panel integrated computer, a panel management module, an operation panel, a water light terminal, a hard disk video recorder and the like.
The control panel comprises a high-voltage motor 16 action knob, power supply on-off knobs of various equipment components, alarm and indicator lights and the like; the hard disk video recorder can store a long-time working process monitoring video so as to be convenient for later viewing; running sea base plate 17 monitoring software and static sounding data recording software in an industrial computer; the static cone penetration data recording software is used for recording cone tip resistance, side wall friction, pore water pressure, inclination, probe coning depth and/or displacement and other data; the industrial computer is connected with an optical transceiver and a hard disk video recorder in the central control cabinet 1 to acquire data and video signals. The monitoring software is integrated with video monitoring images, real-time display of equipment working parameters and the like.
The central control cabinet 1 is connected to the deck trunk 2 through a water surface optical cable assembly to monitor and control water power supply, and is connected to a data optical fiber of the optical-electric composite cable 4 to communicate with an underwater control unit; the deck trunk 2 is located near the photoelectric composite cable 4 winch 3 or in the deck cabin and mainly comprises a step-up transformer, a power supply protection component, a detection component and the like. When the ship is used, ship electricity firstly accesses the deck trunk 2 and is connected with the photoelectric composite cable 4 after boosting power transformation, so that the effect of transmitting electric energy to the water is realized.
The invention also provides a seabed static sounding method based on the seabed base plate 17, which comprises the following steps:
s1, after the investigation ship reaches a static sounding station, starting dynamic positioning.
S2, after dynamic positioning is stable, opening a moon pool cover 19, and stably lowering a static sounding device through a left-right constant tension winch to stop at the sea water level position of the moon pool;
s3, installing a centralizer, closing the moon pool cover 19, standing the moon pool cover 19 by an operator, adding a probe rod 18 to the static cone penetration device, and gradually lowering the static cone penetration device; until a sufficient length of probe 18 is added;
s4, stably lowering the static sounding device to the seabed through the left and right constant tension winches;
s5, the static cone penetration device starts power supply, and the probe rod 18 starts to taper;
s6, coning to a preset depth, and stopping coning
And S7, stably recovering the static sounding device to the moon pool through the left and right constant tension winches.
In the seabed static sounding method based on the seabed base plate 17, the static sounding device comprises a static sounding probe 6 and a centralizer.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (10)
1. The seabed static sounding system based on the seabed base plate is characterized by comprising an overwater control unit, an underwater control unit and a transmission system;
the water control unit is used for remotely controlling and communicating data with the underwater control unit;
the underwater control unit is used for underwater power supply and information acquisition;
the transmission system is respectively connected with the water control unit and the underwater control unit and is used for power supply and signal transmission between the water control unit and the underwater control unit;
the underwater control unit comprises a photoelectric measurement and control cabin and a static cone-in system, wherein the static cone-in system comprises a static cone-in probe connected with the photoelectric measurement and control cabin, and the static cone-in probe is used for information acquisition and transmitting acquired information back to the photoelectric measurement and control cabin.
2. The seabed static cone penetration system based on the seabed base plate, which is disclosed in claim 1, comprises a static cone penetration device, wherein the static cone penetration device comprises a static cone penetration probe and a centralizer, the static cone penetration probe is connected with a probe rod, and the static cone penetration probe is arranged in the centralizer and the seabed base plate in a penetrating way through the probe rod.
3. The seabed static sounding system based on the seabed base plate according to claim 1, wherein two motors which are arranged in opposite directions are arranged on the seabed base plate, the two motors are a first motor and a second motor respectively, a first friction wheel is arranged on a main shaft of the first motor, a second friction wheel is arranged on a main shaft of the second motor, the first friction wheel and the second friction wheel are symmetrically arranged, and the probe rod is clamped between the first friction wheel and the second friction wheel;
the guide sleeve is arranged below the first friction wheel and the second friction wheel, the guide sleeve is arranged above the sea base plate, and the probe rod is arranged in the guide sleeve in a penetrating mode.
4. The seabed static cone penetration system based on the seabed base plate as claimed in claim 1, wherein the static cone penetration system further comprises a displacement sensor, a water depth sensor, a bottom-off altimeter and a posture meter which are respectively connected with the photoelectric measurement and control cabin.
5. The seabed static sounding system based on the seabed base plate as claimed in claim 1, wherein the water control unit comprises a deck relay box, wherein a step-up transformer is arranged in the deck relay box;
the underwater control unit further comprises an underwater power supply unit, the photoelectric measurement and control cabin is respectively connected with the static cone-in system and the underwater power supply unit, and the underwater power supply unit comprises a step-down transformer;
the transmission system comprises an optoelectronic composite cable;
the ship is electrically connected into the deck relay box, and the ship is transmitted to the underwater control unit through the photoelectric composite cable after passing through the step-up transformer; and after passing through the decompression transformer in the underwater control unit, outputting power transmission to other electric equipment.
6. The seabed static sounding system based on the seabed base as claimed in claim 5, wherein the transmission system further comprises a winch, the winch is connected with the photoelectric composite cable, and the winch is used for controlling the lifting of the photoelectric composite cable.
7. The seabed static cone penetration system based on the seabed base plate according to claim 1, wherein the static cone penetration system comprises two high-voltage motors, a displacement sensor, a static cone penetration probe and a probe rod which are respectively connected with the photoelectric measurement and control cabin, and an umbilical cable is connected to the upper end of the probe rod;
the static cone penetration probe comprises one or more of a cone tip resistance sensor, a side wall friction sensor, a pore water pressure sensor and an inclination sensor.
8. The subsea template based static sounding system of claim 7, wherein said water control unit is integrated within an instrument room; the water control unit further comprises a central control cabinet, wherein a computer is arranged in the central control cabinet, and the computer is internally provided with sea base monitoring software and static sounding data recording software; the static cone penetration data recording software is used for recording cone tip resistance, side wall friction force, pore water pressure and inclination, and probe coning depth and/or displacement data;
the central control cabinet is connected with the photoelectric measurement and control cabin, and data information detected by the static sounding probe is transmitted to the water control unit through the photoelectric measurement and control cabin.
9. The seabed static sounding system based on the seabed base as claimed in claim 7, wherein the underwater control unit further comprises a photoelectric separation box and a motor control cabin, wherein the motor control cabin is further connected with the high voltage motor.
10. The seabed static sounding method based on the seabed base plate is characterized by comprising the following steps of:
s1, after the investigation ship reaches a static sounding station, starting dynamic positioning.
S2, after dynamic positioning is stable, opening a moon pool cover, and stably lowering a static sounding device through a left-right constant tension winch to stop at the sea level position of the moon pool;
s3, installing a centralizer, closing a moon pool cover, standing by an operator on the moon pool cover to add a probe rod to the static cone penetration device, and gradually lowering the static cone penetration device; until a probe rod with enough length is added;
s4, stably lowering the static sounding device to the seabed through the left and right constant tension winches;
s5, the static cone penetration device starts power supply, and the probe rod starts to taper;
s6, coning to a preset depth, and stopping coning
And S7, stably recovering the static sounding device to the moon pool through the left and right constant tension winches.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310214886.9A CN116837812A (en) | 2023-03-07 | 2023-03-07 | Seabed static sounding system and method based on seabed base plate |
| PCT/CN2023/088833 WO2024021688A1 (en) | 2023-03-07 | 2023-04-28 | Seabed-type static cone penetration system and method based on seafloor template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310214886.9A CN116837812A (en) | 2023-03-07 | 2023-03-07 | Seabed static sounding system and method based on seabed base plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116837812A true CN116837812A (en) | 2023-10-03 |
Family
ID=88171329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310214886.9A Pending CN116837812A (en) | 2023-03-07 | 2023-03-07 | Seabed static sounding system and method based on seabed base plate |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116837812A (en) |
| WO (1) | WO2024021688A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4868362B2 (en) * | 2007-03-14 | 2012-02-01 | 清水建設株式会社 | Water-bottom cone penetration tester and its test method |
| CN109164205B (en) * | 2018-07-06 | 2024-06-14 | 覃楚倩 | Drilling well gas monitoring system and monitoring method based on seabed base plate |
| CN109061746B (en) * | 2018-09-12 | 2023-08-22 | 国家***第一海洋研究所 | Satellite transmission ocean magnetic force detection device |
| CN109883841B (en) * | 2019-03-06 | 2024-01-02 | 中国海洋大学 | Beach shallow sea sediment intensity in-situ test system |
| CN209894604U (en) * | 2019-03-06 | 2020-01-03 | 中国海洋大学 | Beach shallow sea sediment intensity in-situ test system |
| CN110117951B (en) * | 2019-05-15 | 2020-03-31 | 中国海洋大学 | Seabed static force penetration device and method based on ocean observation probe rod |
| CN112630859B (en) * | 2020-11-30 | 2022-09-23 | 浙江大学 | Seabed geotechnical in-situ multi-parameter detection system |
| CN112681277A (en) * | 2020-12-17 | 2021-04-20 | 浙江大学滨海产业技术研究院 | Seabed multi-point position static sounding equipment |
| CN113216127A (en) * | 2021-04-26 | 2021-08-06 | 浙江大学 | Shallow sea rising and sinking type static sounding equipment |
| CN115588276B (en) * | 2022-09-08 | 2023-11-14 | 中国海洋大学 | Marine geological disaster remote monitoring and early warning station and monitoring and early warning method |
| CN115522526B (en) * | 2022-11-07 | 2023-02-24 | 中交第四航务工程勘察设计院有限公司 | Seabed type static sounding penetration equipment and penetration method |
-
2023
- 2023-03-07 CN CN202310214886.9A patent/CN116837812A/en active Pending
- 2023-04-28 WO PCT/CN2023/088833 patent/WO2024021688A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024021688A1 (en) | 2024-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102565870B (en) | Deep-sea visual geochemical multi-parameter in-situ comprehensive detection system | |
| RU2596383C2 (en) | Ship device | |
| WO1985003269A1 (en) | Remotely operated underwater vehicle | |
| CN106093949B (en) | Photoelectric sensor assembly and integrated photoelectric detect operation device | |
| CN115598695B (en) | System for compatible acoustic longitudinal wave test of submarine sediment gravity sampler | |
| CA2913241C (en) | Power generating systems | |
| CN113709597B (en) | Real-time power supply and high-speed data transmission subsurface buoy device based on seabed observation network | |
| CN113447066A (en) | Seabed data monitoring device and system | |
| CN113552634B (en) | Chain type submarine earthquake monitoring device | |
| CN207867045U (en) | A kind of underwater sound array apparatus based on underwater movable platform | |
| CN104309765B (en) | Portable deep-sea multi-sensor carrying device | |
| CN116837812A (en) | Seabed static sounding system and method based on seabed base plate | |
| CN111207733B (en) | Recyclable underwater object attitude measurement sensor system | |
| CN204124318U (en) | A kind of portable deep-sea multisensor loading device | |
| CN114088066B (en) | Sea dynamic monitoring method and equipment used by same | |
| WO2022267133A1 (en) | Deployment apparatus and monitoring method for slip mass deep-integrated sensor | |
| CN216118035U (en) | Submarine earthquake monitoring device | |
| CN115290956A (en) | Submarine pipeline stray current detection device and detection method thereof | |
| CN203519529U (en) | Submarine pipeline detection device | |
| CN110834707B (en) | Underwater hybrid self-driving device for marine riser flaw detection | |
| CN219806950U (en) | Detection robot for offshore wind power sea cable | |
| CN219676285U (en) | Floating type pipeline detection probe | |
| CN113670656B (en) | Deep sea visual exploration sampling equipment | |
| CN210603766U (en) | Cavity infiltration monitoring devices | |
| CN112366531B (en) | Submarine operation distribution device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |