CN100516872C - In-situ monitoring device for liquefaction of seabed soil - Google Patents
In-situ monitoring device for liquefaction of seabed soil Download PDFInfo
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- CN100516872C CN100516872C CNB2005100453619A CN200510045361A CN100516872C CN 100516872 C CN100516872 C CN 100516872C CN B2005100453619 A CNB2005100453619 A CN B2005100453619A CN 200510045361 A CN200510045361 A CN 200510045361A CN 100516872 C CN100516872 C CN 100516872C
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Abstract
The invention discloses a monitor equipment of seabed soil mass liquefaction field in the sea detection technique domain, which comprises the following parts: direction wave observer, frame, reclamation cordage and float, wherein the frame connects the soil mechanics monitoring feeler lever in the boning rod stand, which is clamped by chuck; the boning rod stand connects on the cushion cap; one end of the working power consumption and data transmission line connects the waterborne control box and the other end connects in the underwater hydraulic power supplying mechanism through water-joint of feeler lever penetration equipment; the soil mass monitoring feeler lever is penetrated in the preset depth of the seabed soil through feeler lever penetration equipment. The invention can accomplish synchronizing monitor of soil mechanics parameter and hydrologic factor.
Description
(1) technical field
The present invention relates to a kind of can be under the severe sea condition condition on-the-spot use, can to seabed soil nature parameters and bottom hydrographic features carry out original position, synchronously, the monitoring device of Continuous Observation, belong to the marine survey technology field.Be a kind of in-situ monitoring device for liquefaction of seabed soil specifically.
(2) background technology
Along with the exploitation of offshore oil and gas resource, more offshore engineering facility has appearred in China mainland frame shallow water marine site.Under abominable sea conditions, the high strength hydrologic process can make seabed soil that serious liquefaction takes place, thereby has cut down its load-bearing capacity greatly, and can give sea bed like this is the various engineering workses of ground, the especially consequence of bringing on a disaster property of offshore platform.The native liquefaction problem of base is the serious challenge to the marine resources development engineering, how to take precautions against, and has become the important subject of ocean scientific research circle at present.
If can be under the severe sea condition condition, the dynamic response and the liquefaction property to seafloor soil under the wave action of unattended duty carry out marine on-the-spot actual observation, and then with these observation datas, set up the response pattern of the relative hydrodynamical particular of seabed sand body nature parameters, and deduce the liquefaction trend of the bed load body that goes to sea with this, then can be the oceanographic engineering structures, foundation stability in particular for exploitation of offshore oil and gas platform and pipe laying, provide and derive from field measurement, very valuable basic evaluation data, this has meaning to taking precautions against perils of the sea.
Desire is implemented such sea observation, just need a kind of cloth in advance to be placed on the high strength hydrologic process phase seabed, can be when severe sea condition occurs, to the physical quantity of two types of submarine soil mechanics parameter and bottom hydrographic features, carry out original position, synchronous, continuous recording monitoring device automatically.
Domestic and foreign literature by retrieval, domestic still do not have a similar device.Require close monitoring system to have two kinds abroad with above-mentioned observation: a kind of is the PP system of U.S.'s development, and another kind is the Lancelot system of Canada's development, and these two kinds of monitoring systems only can be surveyed the soil mechanics amount, and can not monitor hydrographic features simultaneously.In addition, these two kinds of equipment mainly are applicable to the environments such as subsea of Lu Po or bathyal soft sea bed.Their injection in soil layer, available freely falling body mode, only relying on self gravitation can prove effective.And for China mainland frame shallow water chiltern marine site, especially for the extensive hard sea area that is commonly called as " iron plate sand " that distributing, only make with the feeler lever self gravitation and go deep into soil layer, that's altogether beyond the reach of possibility.So in the research of taking precautions against the ground reduction, the said equipment not only has the deficiency on the function, also has the incompatibility on the environment for use.
(3) summary of the invention
The present invention seeks in order to overcome the deficiency in the above-mentioned technology, in seabed subsoil liquefaction research, the deficiency of existing marine recording geometry function: only can survey the soil mechanics amount, survey hydrographic features and can not hold concurrently simultaneously; Deficiency on the adaptability: the environments such as subsea that mainly is applicable to Lu Po or the soft sea bed of bathyal region, the invention provides a kind of in-situ monitoring device for liquefaction of seabed soil, soil mechanics monitoring feeler lever and hydrodynamics subsystem have been disposed, make it carry out original position, synchronous, continuous recording monitoring to measuring point soil layer parameters in soil mechanics and nearly measuring point seawater bottom hydrographic features; And can use measuring staff injection facility in the seabed self performance press the power of passing through, measuring staff slow at the uniform velocity pressure in the sea bed soil layer passed through, be adapted to similar China mainland frame shallow water chiltern marine site, especially be commonly called as the hard sea area sea bed of " iron plate sand ".
The object of the invention is realized by following technical scheme: this in-situ monitoring device for liquefaction of seabed soil, include the direction wave visualizer 2 that is suspended on framework 6 centres, framework connects ball float 9 by reclaiming rigging 7, it is characterized in that framework connects soil mechanics monitoring feeler lever 1 by high-intensity fiber rope 5, before soil mechanics monitoring feeler lever 1 lays, be placed in the measuring staff support 4, be fixedly clamped by the manual 10 that is welded on the measuring staff support 4, measuring staff support 4 usefulness right angle steel plates 31 and bolt are connected on the cushion cap 32 of feeler lever injection facility 3, the work electricity consumption of feeler lever injection facility 3 is connected control box waterborne with private cable 8 one ends that data line adopts, the other end is connected in the underwater hydraulic power supply mechanism 36 of feeler lever injection facility by watertight connector, before the monitoring, soil mechanics monitoring feeler lever 1 is pressed in the predetermined degree of depth of injection sea bed soil layer by feeler lever injection facility 3.
Static sounding (CPT) probe 15 is equipped with in the lower end of soil mechanics monitoring feeler lever 1, and the upper end is equipped with number and is adopted gas-tight silo 11, number adopt be connected with between gas-tight silo 11 and the static sounding probe 15 number save alternately measuring staff end connector 12 and the joint sleeve 13 of hollow.
For being threaded, also be threaded between static sounding probe 15 and the measuring staff end connector 12 between measuring staff end connector 12 alternately and the joint sleeve 13, measuring staff end connector 12 is adopted the bottom flange of gas-tight silo 11 for being welded to connect with number.
The two ends of measuring staff end connector 12 are cylindrical, on connecting thread 121 is arranged, the corresponding connection of internal thread with static sounding probe 15 links and joint sleeve 13 two ends has T shape seal groove 122 on the connecting thread limit of measuring staff end connector 12, T shape seal groove is embedded with sealing strip 16.Because the effect of sealing strip 16, the water of joint sleeve and measuring staff end connector outside can not enter the inner space.
Eccentric through-hole 124 is arranged in the measuring staff end connector 12, be linked to be the passage of lead with the through hole in the middle of the joint sleeve that is connected alternately 13, on the side wall surface relative on the measuring staff end connector, aperture 125 is arranged with eccentric through-hole, the aperture is equipped with permeable stone 17, O-ring seal 18 is housed between permeable stone and the aperture, the water of permeable stone outside can enter in the aperture 125 of permeable stone the inside thoroughly through permeable stone, and enters in the tubular space of aperture the inside, and other impurity can not enter aperture 125.Back-up ring 19 is equipped with in the permeable stone outside, and back-up ring places in the interior groove of aperture, blocks permeable stone and can not come off.Pore water pressure probe 110 is housed in the tubular space that is connected with aperture, the pressure of the water that advances thoroughly by permeable stone, adopt module by the number that pore water pressure probe 110 is adopted in the gas-tight silo 11 by probe wire plug 111 and lead number of ports, number is adopted module time recording, storage data.
There is a circle to be used for chuck 341 clampings on the outside wall surface of measuring staff end connector 12 to pressing down the holding tank 123 that passes through.Because each joint measuring staff end connector 12 all has a circle holding tank, feeler lever injection facility can the pointwise clamping feeler lever application of force pass through to pressing down, and feeler lever can be placed the position of the different depth that measurement needs, and feeler lever can be crooked and damages.
The warehouse 113 that number is adopted gas-tight silo and the storehouse of upper end lid 112 are connected by bolt, and the centre accompanies seal gasket 117, and the warehouse outside is equipped with and is lifted frame 118, and bracing frame 114 is installed in the warehouse, severally adopt module 116 and electric battery 115 places in the bracing frame respectively.Number is adopted gas-tight silo and is had good watertightness and anti-seawater corrosion ability, guarantees data acquisition, stores and normally carry out.
It is to serve as the control core with embedded Rabbit3000 type high-performance low-power-consumption single-chip microcomputer that number is adopted data acquisition system (DAS)s in the module 116, the design of employing modular construction, static sounding probe 15:CH01 is connected signal amplifier AD620 to carry out all being connected to the relay end points with pore water pressure probe 110:CH0 and CH1 behind the signal condition with CH11, insert A/D data converter ADS7870 input end by resistance R 0 and R1, pore water pressure probe CH2-CH7 directly inserts A/D data converter ADS7870 input end by resistance R 2-R7; A/D data converter ADS7870 data output end and order control end insert Rabbit3000 single-chip data control port by the Data Control bus; FLASH program storage 29LF020B and SRAM dynamic storage ZS62Y512B data input/output terminal and order control end insert Rabbit3000 single-chip data control port by the Data Control bus; The data input/output terminal of data transmission level translator ADM3321E and MAX232 also inserts Rabbit3000 single-chip data input/output port by data bus, carries out level conversion, connects outer PC and usb data memory module respectively; The control end of power-supply controller of electric MAX603 and relay inserts Rabbit3000 single-chip processor i/o Data Control port respectively; Electric battery inserts Rabbit3000 single-chip microcomputer, FLASH program storage, SRAM dynamic storage, pressure transducer, A/D data converter, signal amplifier, usb data memory module, power-supply controller of electric, and the power input V of parts such as data transmission level translator, relay respectively by voltage stabilizer LM7812 and MIC5236 output terminal
CWith earth terminal.
Feeler lever injection facility 3 comprise the ground anchorage 35 that is fixed on the injection facility base 31, and feeler lever is pressed and passed through oil cylinder 33, and the underwater hydraulic power supply mechanism 36 of sealing, cushion cap 32 are fixed on the injection facility base 31; Oil cylinder 33 is fixed on above the cushion cap 32, and the cylinder bar 331 of oil cylinder 33 connects intermittently lockset 34 of feeler lever, and feeler lever lockset 34 at intermittence is below cushion cap 32; Feeler lever lockset 34 at intermittence and cushion cap 32 have the through hole by feeler lever; The feeler lever intermittently chuck 341 of lockset 34 has circular arc clevis mouth, can be clamped in the holding tank 123 of soil mechanics monitoring feeler lever; The oil circuit of underwater hydraulic power supply mechanism 36 connects control oil cylinder and hydraulic motor, and its circuit is connected with the outer control desk of feeler lever injection facility.
Fixing oil cylinder 342 on the chassis 343 of feeler lever lockset 34 at intermittence, the cylinder bar of oil cylinder flexibly connects two groups of connecting rods, two groups of connecting rods flexibly connect relative chuck 341 respectively, or fixing two relative oil cylinders 342 on the chassis 343, the cylinder bar of oil cylinder connects chuck 341 respectively, and the guide rail on chuck and the chassis 343 is slidingly matched.
When the cylinder bar of oil cylinder 342 stretched, drive chuck 341 clamped and unclamps.Holding tank 123 no-floats of the circular arc of chuck folder mouthful and feeler lever, clamping is reliably firm, when having avoided the injection feeler lever, feeler lever slippage and abrading.
When starting working, oil cylinder 342 drives intermittently locksets 34 of feeler levers, and the holding tank 123 that makes the chuck 341 of feeler lever both sides align feeler lever clamps.Start oil cylinder 33, feeler lever is the just slow downwards uniform motion of feeler lever of lockset 34 clampings intermittently, when the cylinder bar 331 full journeys of oil cylinder 33 are stretched out, first passes through feeler lever native process and finishes, oil cylinder 342 make feeler lever intermittently lockset 34 unclamp feeler lever, make oil cylinder 33 backhauls after, can begin second of feeler lever and pass through native process.So repeat, feeler lever is passed through reach predetermined soil layer.Feeler lever is delayed by segmentation at the uniform velocity presses the injection sea bed, avoids the crooked and damage of feeler lever.
The screw anchor guide rod 352 of ground anchorage 35 is fixed on the base 31, and the output shaft of the hydraulic motor 357 of ground anchorage 35 connects the upper end of screw anchor anchor pole 351, and the screw anchor anchor sheet that passes base 31 is equipped with in the lower end of earth anchor anchor pole; Hydraulic motor 357 is fixed on the lower flange 356, and lower flange and guide rod 352 are slidingly matched.Ground anchorage 35 makes the stationary positioned of feeler lever injection facility 3 more reliable.
The fixedly connected upper plate 311 in guide rod 352 upper ends, the fixedly connected lower plate 353 in lower end, lower plate is fixed on the base 31; Hydraulic motor 355 is fixedly connected on the lower plate 353, can drive anchor pole anchor clamps 354 and clamp anchor pole 351.
Oil motor 357,355 adopts the dubbin pressure motors, between the front end of the bent axle of hydraulic motor 357,355 and hubcap " O " shape O-ring seal is arranged.
35 one-tenth equilateral triangles of ground anchorage are arranged, are fixed on the injection facility base 31; The earth anchor upper plate 311 of each ground anchorage 35 is fixedly connected by connecting link, becomes one.
Start by controlling hydraulic motor 357 forwards, the anchor sheet of anchor pole 351 lower ends is rotated, the gravity of feeler lever injection facility 3 has overcome soil layer to the reacting force of anchor sheet and the buoyancy of feeler lever injection facility.Hydraulic motor 357, lower flange 356, anchor pole 351 connect as one, along with going deep into of anchor sheet, next plays decline in guide rod 352 guiding, after dropping to preposition, turbine shutdown oil pressure motor 357 rotates, and starts the anchor pole that is fixed on the base 31 and clamps hydraulic motor 355, makes anchor pole anchor clamps 354 clamp anchor pole 351, anchor pole 351 firm being connected as a single entity with base 31, feeler lever injection facility 3 are firm is positioned in preposition.Oppositely start hydraulic motor 355, make anchor pole anchor clamps 354 unclamp anchor pole 351, hydraulic motor 357 backward rotation, the anchor sheet is raised, and can weigh anchor.
Device in the underwater hydraulic power supply mechanism 36 all is contained in the diving sealable tank, by drawing jar outer petroleum pipeline process tank wall place in the jar by the hydraulic seal joint sealing, connects hydraulic motor 357,355 and oil cylinder 33,342.
31 one-tenth hexagons of base, ground anchorage 35 are positioned at three alternate angles, and underwater hydraulic power supply mechanism 36 is positioned at another angle, and balance weight iron 312 is placed at all the other two angles.Balance weight iron makes feeler lever injection facility 3 that better stability be arranged.
Advantage of the present invention is rational in infrastructure, simple, and handled easily control does not need hydropexis location under the personnel, puts and receive the feeler lever operation; Owing to disposed soil mechanics monitoring feeler lever and hydrodynamics subsystem, make it can be to measuring point soil layer parameters in soil mechanics and nearly measuring point seawater bottom hydrographic features, carry out original position, synchronous, continuous recording monitoring, avoided that the cable data transmission range is long, signal noise many and drawback such as the fracture obliterated data that meets accident, is the measurement demand of intention to set up seabed sand body nature parameters to the response pattern of hydrodynamical particular, can be met; Can make measuring staff self bring into play enough pressures in the seabed and pass through power, segmentation in the sea bed soil layer, slow at the uniform velocity the pressure are passed through, in injection seabed soil process, reduced interference to the soil body, avoided the crooked and damage of elongated shape soil mechanics monitoring feeler lever, guaranteeing that equipment of the present invention can run through iron plate sand, thereby the present invention is being passed through on the native ability, be adapted to similar China mainland frame shallow water chiltern marine site, especially be commonly called as the hard sea area sea bed of " iron plate sand ".
(3) description of drawings
Fig. 1 is a kind of in-situ monitoring device for liquefaction of seabed soil structural representation,
Fig. 2 is that soil mechanics monitoring feeler lever 1 is contained in the synoptic diagram on the measuring staff support 4,
Fig. 3 is a kind of structural representation of soil mechanics monitoring feeler lever,
Fig. 4 be A to view,
Fig. 5 is the C partial enlarged drawing,
Fig. 6 is the B partial enlarged drawing,
Fig. 7 is a measuring staff end connector cut-open view,
Fig. 8 is that number is adopted the gas-tight silo structural representation,
Fig. 9 is that number is adopted the structural representation that gas-tight silo has broken section,
Figure 10 is the vertical view of Fig. 9,
Figure 11 is the A partial enlarged drawing,
Figure 12 is that number is adopted the circuit diagram of module,
Figure 13 is the front view of feeler lever injection facility;
Figure 14 is the side view of Fig. 1;
Figure 15 is the vertical view of Fig. 1;
Figure 16 is intermittently a kind of embodiment of lockset of feeler lever;
(5) embodiment
Embodiment of accompanying drawings.Fig. 1 represents a kind of in-situ monitoring device for liquefaction of seabed soil structural drawing.The present invention is mainly by soil mechanics monitoring feeler lever 1, hydrodynamics monitoring subsystem, and promptly the devices such as framework 6, recovery rigging 7, power/signal cable 8, ball float 9 and manual 10 that lay of the senior direction wave visualizer 2 of S4ADW, feeler lever injection facility 3, measuring staff support 4, high strength fibre rope 5, S4 are formed.Below the operation steps of present embodiment is done a summary, further specify its technical scheme with the Ji.
The operation steps of present embodiment substantially as:
1, at scene, tested point marine site, with the operation ship suspender, so that entry of the present invention, sit the end,
2, start the ground anchorage 35 of feeler lever injection facility 3, feeler lever injection facility 3 be anchored in the seabed,
3, the soil mechanics monitoring feeler lever 1 of startup feeler lever injection facility 3 is pressed to provide and is executed, and soil mechanics is monitored feeler lever 1 slow at the uniform velocity pressure in submarine soil layer pass through.In being pressed the process of injection soil, static sounding probe 15 is measured resistance of feeler inspection end and frictional resistance automatically,
4, after soil mechanics monitoring feeler lever 1 is arrived the predetermined depth in seabed by injection, release the special lockset between feeler lever injection facility 3 and the soil mechanics monitoring feeler lever, make the two separation, and hang independent recovery feeler lever injection facility 3 with ship, 1 of feeler lever of soil mechanics monitoring this moment is stayed in the sea bed soil layer, to treat that severe sea condition arrives, and measures the seabed soil mechanics parameter of strong hydrologic process phase automatically.
6, with the hydrodynamics monitoring subsystem, it is the senior direction wave visualizer of S4ADW, throw on the bed load at soil mechanics monitoring feeler lever 1 side side in the freely falling body mode, to treat measuring the marine site bottom hydrographic features of its position synchronously automatically with soil mechanics monitoring feeler lever 1.
7, after the strong hydrologic process phase process under the severe sea condition, operation ship reclaims soil mechanics monitoring feeler lever 1 and the senior direction wave visualizer of S4ADW, the two record data of gathering, storing of playback subsequently.
The senior direction wave visualizer of S4ADW is used for observing key elements such as place, seabed wave, ocean current, tide, temperature, salinity and the depth of water.
Measuring staff support 4 usefulness right angle steel plates 31 and bolt are connected on the cushion cap of feeler lever injection facility 3 32, as shown in Figure 2.
Soil mechanics monitoring feeler lever 1 is put in the measuring staff support 4, is fixedly clamped with the manual 10 that is welded on the measuring staff support 4.After using the injection clamp measuring staff on the feeler lever injection facility 3 then, the screw rod of the manual on the rotation measuring staff support 4 unclamps manual to maximum.
The work electricity consumption of feeler lever injection facility 3 and data line private cable 8 adopt the private cable of Tianjin angel company.Private cable one end connects control box waterborne, and the other end is connected in the underwater hydraulic power supply mechanism 36 of feeler lever injection facility by watertight connector.
Be connected to 3 Φ 25 wireropes on the suspension ring of three earth anchor upper plates 311 of feeler lever injection facility 3, be connected to then on the crane, sling and cloth is put into the seabed.
The senior direction wave visualizer 2 of S4ADW is spherical, and connecting hole is arranged up and down, is connected on the framework 6 that lays usefulness with Φ 16 stainless steel U type rings and Φ 16 stainless steel wireropes.Framework 6 is welded by channel-section steel and round steel bar.
Soil mechanics monitoring feeler lever 1 upper end is connected on the scopic framework of the senior direction wave of S4ADW 6 bottoms with stainless steel U type ring and the Φ 16 high-intensity fiber ropes 5 of Φ 25.
Two subsystems are realized integral point synchronous data collection storage by real-time clock separately.
Soil mechanics monitoring feeler lever 1, doube bridge static sounding (CPT) probe 15 of its lower end is the electrical measurement static sounding probe, gas-tight silo 11 is adopted for number in its upper end.Number adopt be connected with between gas-tight silo 11 and the static sounding probe 15 8 joints alternately measuring staff end connector 12 and 13,8 measuring staff end connectors of joint sleeve of hollow on 8 pore water pressures be housed altogether pop one's head in 110, as Fig. 3, Fig. 5, Fig. 6, shown in Figure 7.The spacing of pore water pressure probe measures downwards from the feeler lever upper end, is spaced apart 0.5 meter within 2 meters, is spaced apart 1 meter below 2 meters.The cylindrical of 70 millimeters of diameters is made at the two ends of measuring staff end connector 12, above the internal thread at connecting thread 121 and joint sleeve 13 two ends and the pop one's head in corresponding connection of internal thread of 15 links of feeler inspection, there are 3 road T shape seal grooves 122 on connecting thread next door at the measuring staff end connector, be embedded with sealing strip 16, as Fig. 5, shown in Figure 6.Pore water pressure probe 110 is contained in the tubular space that is connected with aperture 125, as Fig. 7, shown in Figure 4.Advance the pressure of the water in the aperture 125 thoroughly by permeable stone 17, adopt module by pore water pressure probe 110 through probe wire plugs 111 and lead number of ports, number is adopted module time recording data.O-ring seal 18 is housed between permeable stone and the aperture, and back-up ring 19 is equipped with in the permeable stone outside, blocks permeable stone and can not come off.Have a circle to be used for the anchor clamps clamping to pressing down the holding tank 123 that passes through on the outside wall surface of measuring staff end connector 12, make and pass through downwards when pressing, whole soil mechanics monitoring feeler lever 1 is slow at the uniform velocity downward, can be not crooked and damage, smoothly, the predetermined degree of depth arrives safe and sound.As Fig. 7, shown in.
The warehouse 113 that number is adopted gas-tight silo and the storehouse of upper end lid 112 are connected by bolt, and the centre accompanies seal gasket 117, and the warehouse outside is equipped with and is lifted frame 118, and bracing frame 114 is installed in the warehouse, severally adopt module 116 and electric battery 115 places in the bracing frame respectively.
It is to serve as the control core with embedded Rabbit3000 type high-performance low-power-consumption single-chip microcomputer that number is adopted data acquisition system (DAS)s in the module 16, the design of employing modular construction, system comprises single-chip microcomputer, FLASH program storage, SRAM dynamic storage, pressure transducer, A/D data converter, signal amplifier, usb data memory module, power-supply controller of electric, voltage stabilizer, reaches parts such as data transmission level translator, relay, by program command control mode switch pressure transducer power supply, realize the function of automatic data collection, storage, transmission.
The circuit that number is adopted module as shown in figure 10.Pore water pressure probe 10 is CH0-CH7 on circuit diagram, and static sounding probe 5 is CH01 and CH11 on circuit diagram.When data acquisition system (DAS) is worked, at first the Rabbit3000 single-chip microcomputer passes through, control bus sending controling instruction, order A/D data converter ADS7870 preliminary work, order power-supply controller of electric MAX603 to power up simultaneously, select acquisition channel and acquisition time according to program setting to sensor.When selecting the work of 2 passages, static sounding beachhead CH01 and CH11 are through signal amplifier AD620 and relay, insert A/D data converter ADS7870 by resistance R 0 and R1 and obtain the sampled signal data, during the work of 8 passages, pore water pressure probe CH0 and CH1 are that pore water pressure probe CH2-CH7 directly inserts A/D data converter ADS7870 by resistance R 2-R7 and obtains the sampled signal data by relay and resistance R 0 and R1 access A/D data converter.The Rabbit3000 single-chip microcomputer obtains the signal data row operation of going forward side by side by data bus and handles, and the result deposits in the SRAM 62Y5128B dynamic storage, judges simultaneously whether acquisition time finishes, and carries out continuous data collection, storage according to the time; Acquisition time finishes, order A/D data converter ADS7870 quits work, powered-down controller MAX603 opens serial data transmission level translator MAX232 and usb data memory module simultaneously to pore water pressure probe and static sounding probe outage, carries out data transmission; Behind the DTD, all control bus ports are closed in the order of Rabbit3000 single-chip microcomputer, and data acquisition system (DAS) changes the dormancy low power consumpting state over to, wait for that next working time state works on.
Be fixed with into three ground anchorages 35 of triangular arranged on the base 31 of feeler lever injection facility 3, underwater hydraulic power supply mechanism 36 presses and passes through the cushion cap 32 of mechanism.Cushion cap 32 is positioned at base 1 middle part.Two oil cylinders 33 are fixed on cushion cap 32 both sides.The cylinder bar 331 fixedly connected feeler levers of oil cylinder 33 are the chassis 343 of lockset 34 intermittently, there is the feeler lever through hole at chassis 343 and cushion cap 32 centers, the hole by feeler lever and the cylinder bar 331 of two oil cylinders 33 are point-blank, the feeler lever intermittently oil cylinder 342 of lockset 34 is fixed on the chassis 343, the cylinder bar of oil cylinder 342 flexibly connects two connecting rods 344, connecting rod 344 flexibly connects with connecting rod 345, two connecting rods 345 flexibly connect two chucks 341 of feeler lever through hole both sides respectively, chuck 341 cooperates with the guide rail on chassis 343, chuck 341 has circular arc folder mouth, can be clamped in the holding tank 123 of soil mechanics monitoring feeler lever 1.Feeler lever intermittently lockset 34 also can be another structure: fixing two relative oil cylinders 342 on the chassis 343, the cylinder bar of oil cylinder 342 connects chuck 341 respectively, and chuck 341 is slidingly matched with the guide rail on chassis 343.The earth anchor lower plate 353 of ground anchorage 35 is fixed on the base 31, screw anchor anchor sheet is equipped with in the lower end of screw anchor anchor pole 351, pass lower plate 353 and base 31, its upper end connects the output shaft of hydraulic motor 357 with joint, hydraulic motor 357 is fixed on the lower flange 356 between motor upper flange 358 and motor lower flange 356.The screw anchor guide rod 352 of both sides is slidingly matched with the sliding sleeve of lower flange 356, its upper end is fixed on the earth anchor upper plate 311, the lower end is fixed on down wins in succession on 353, hydraulic motor 355 is fixedly connected on the lower plate 353, can drive anchor pole anchor clamps 354 and clamp anchor pole 351, the A of underwater hydraulic power supply mechanism 36, B oil circuit connect A, the B oil circuit mouth of hydraulic motor 355.The upper plate 311 of three ground anchorages 35 is fixedly connected by connecting link, becomes one.Oil motor 357,355 adopts the dubbin pressure motors, between the front end of the bent axle of hydraulic motor 357,355 and hubcap " O " shape O-ring seal is arranged.The oil circuit of oil cylinder 33 and hydraulic motor 357 is connected underwater hydraulic power supply mechanism 36, is driven by it and controls, and the circuit of underwater hydraulic power supply mechanism 36 is connected with feeler lever injection facility 3 outer control desks.Devices in the underwater hydraulic power supply mechanism 36 all are contained in the diving sealable tank, by draw in the jar jar outer petroleum pipeline through the tank wall place by the hydraulic seal joint sealing, draw outside the jar by the electric wire that sealing adaptor will be dived under water in the sealable tank.31 one-tenth hexagons of base, ground anchorage 35 are positioned at three alternate angles, and underwater hydraulic power supply mechanism 36 is positioned at another angle, and counterweight is placed at all the other two angles.
Claims (16)
1, a kind of in-situ monitoring device for liquefaction of seabed soil, include and be suspended on the middle direction wave visualizer (2) of framework (6), framework connects ball float (9) by reclaiming rigging (7), it is characterized in that framework connects soil mechanics monitoring feeler lever (1) by high-intensity fiber rope (5), before soil mechanics monitoring feeler lever (1) lays, be placed in the measuring staff support (4), be fixedly clamped by the manual (10) that is welded on the measuring staff support (4), measuring staff support (4) is connected on the cushion cap (32) of feeler lever injection facility (3) with right angle steel plate (31) and bolt, the work electricity consumption of feeler lever injection facility (3) is connected control box waterborne with private cable (8) one ends that data line adopts, the other end is connected in the underwater hydraulic power supply mechanism (36) of feeler lever injection facility by watertight connector, before the monitoring, soil mechanics monitoring feeler lever (1) is pressed in the predetermined degree of depth of injection sea bed soil layer by feeler lever injection facility (3).
2, according to the described in-situ monitoring device for liquefaction of seabed soil of claim 1, static sounding (CPT) probe (15) is equipped with in the lower end that it is characterized in that soil mechanics monitoring feeler lever (1), the upper end is equipped with number and is adopted gas-tight silo (11), number adopt be connected with between gas-tight silo (11) and the static sounding probe (15) number save alternately measuring staff end connector (12) and the joint sleeve (13) of hollow.
3, according to the described in-situ monitoring device for liquefaction of seabed soil of claim 2, it is characterized in that between measuring staff end connector (12) and the joint sleeve (13) alternately for being threaded, also be threaded between static sounding probe (15) and the measuring staff end connector (12), measuring staff end connector (12) is adopted the bottom flange of gas-tight silo (11) for being welded to connect with number.
4, according to the described in-situ monitoring device for liquefaction of seabed soil of claim 2, the two ends that it is characterized in that measuring staff end connector (12) are cylindrical, on connecting thread (121) is arranged, the corresponding connection of internal thread with static sounding probe (15) link and joint sleeve (13) two ends, T shape seal groove (122) is arranged on the connecting thread limit of measuring staff end connector (12), and T shape seal groove is embedded with sealing strip (16).
5, according to the described in-situ monitoring device for liquefaction of seabed soil of claim 2, it is characterized in that eccentric through-hole (124) is arranged in the measuring staff end connector (12), be linked to be the passage of lead with the through hole in the middle of the joint sleeve that is connected alternately (13), on the side wall surface relative on the measuring staff end connector, aperture (125) is arranged with eccentric through-hole, the aperture is equipped with permeable stone (17), O-ring seal (18) is housed between permeable stone and the aperture, back-up ring (19) is equipped with in the permeable stone outside, pore water pressure probe (110) is housed in the tubular space that is connected with aperture, and its number of adopting in the gas-tight silo (11) by probe wire plug (111) and lead number of ports is adopted module.
6,, it is characterized in that having on the outside wall surface of measuring staff end connector (12) circle to be used for chuck (341) clamping to pressing down the holding tank (123) that passes through according to the described in-situ monitoring device for liquefaction of seabed soil of claim 2.
7, according to the described in-situ monitoring device for liquefaction of seabed soil of claim 2, it is characterized in that counting the warehouse (113) of adopting gas-tight silo is connected by bolt with the Cang Gai (112) of upper end, the centre accompanies seal gasket (117), the warehouse outside is equipped with and is lifted frame (118), bracing frame (114) is installed in the warehouse, and number adopts module (116) and electric battery (115) places in the bracing frame respectively.
8, according to the described in-situ monitoring device for liquefaction of seabed soil of claim 7, it is characterized in that it is to serve as the control core with embedded Rabbit3000 type high-performance low-power-consumption single-chip microcomputer that number is adopted data acquisition system (DAS)s in the module (116), the design of employing modular construction, static sounding probe (15) CH01 is connected signal amplifier AD620 to carry out all being connected to the relay end points with pore water pressure probe (110) CH0 and CH1 behind the signal condition with CH11, insert A/D data converter ADS7870 input end by resistance R 0 and R1, pore water pressure probe CH2-CH7 directly inserts A/D data converter ADS7870 input end by resistance R 2-R7; A/D data converter ADS7870 data output end and order control end insert Rabbit3000 single-chip data control port by the Data Control bus; FLASH program storage 29LF020B and SRAM dynamic storage ZS62Y512B data input/output terminal and order control end insert Rabbit3000 single-chip data control port by the Data Control bus; The data input/output terminal of data transmission level translator ADM3321E and MAX232 also inserts Rabbit3000 single-chip data input/output port by data bus, carries out level conversion, connects outer PC and usb data memory module respectively; The control end of power-supply controller of electric MAX603 and relay inserts Rabbit3000 single-chip processor i/o Data Control port respectively; Electric battery inserts Rabbit3000 single-chip microcomputer, FLASH program storage, SRAM dynamic storage, pressure transducer, A/D data converter, signal amplifier, usb data memory module, power-supply controller of electric, and the power input V and the earth terminal of parts such as data transmission level translator, relay respectively by voltage stabilizer LM7812 and MIC5236 output terminal.
9, according to the described in-situ monitoring device for liquefaction of seabed soil of claim 1, it is characterized in that feeler lever injection facility (3), comprise the ground anchorage (35) that is fixed on the injection facility base (31), feeler lever is pressed and is passed through oil cylinder (33), and the underwater hydraulic power supply mechanism (36) of sealing, cushion cap (32) are fixed on the injection facility base (31); Oil cylinder (33) is fixed on above the cushion cap (32), and the cylinder bar (331) of oil cylinder (33) connects intermittently lockset (34) of feeler lever, and feeler lever lockset at intermittence (34) is below cushion cap (32); Feeler lever lockset (34) at intermittence and cushion cap (32) have the through hole by feeler lever; The feeler lever intermittently chuck (341) of lockset (34) has circular arc clevis mouth, can be clamped in the holding tank (123) of soil mechanics monitoring feeler lever; The oil circuit of underwater hydraulic power supply mechanism (36) connects control oil cylinder and hydraulic motor, and its circuit is connected with the outer control desk of feeler lever injection facility.
10, in-situ monitoring device for liquefaction of seabed soil according to claim 9, it is characterized in that feeler lever intermittently fixing oil cylinder (342) on the chassis (343) of lockset (34), the cylinder bar of oil cylinder flexibly connects two groups of connecting rods, two groups of connecting rods flexibly connect relative chuck (341) respectively, or fixing relative two oil cylinders (342) on chassis (343), the cylinder bar of oil cylinder connects chuck (341) respectively, and the guide rail on chuck and chassis (343) is slidingly matched.
11, in-situ monitoring device for liquefaction of seabed soil according to claim 9, the screw anchor guide rod (352) that it is characterized in that ground anchorage (35) is fixed on the base (31), the output shaft of the hydraulic motor (357) of ground anchorage (35) connects the upper end of screw anchor anchor pole (351), and the screw anchor anchor sheet that passes base (31) is equipped with in the lower end of earth anchor anchor pole (351); Hydraulic motor (357) is fixed on the lower flange (356), and lower flange (356) and guide rod (352) are slidingly matched.
12, in-situ monitoring device for liquefaction of seabed soil according to claim 9 is characterized in that guide rod (352) upper end fixedly connected upper plate (311), and the fixedly connected lower plate in lower end (353), lower plate (353) are fixed on the base (31); Hydraulic motor (355) is fixedly connected on the lower plate (353), can drive anchor pole anchor clamps (354) and clamp anchor pole (351).
13, according to claim 9 or 12 described in-situ monitoring device for liquefaction of seabed soil, it is characterized in that oil motor (357), (355) adopt the dubbin pressure motor, between the front end of the bent axle of hydraulic motor (357), (355) and hubcap, " O " shape O-ring seal is arranged.
14, in-situ monitoring device for liquefaction of seabed soil according to claim 9 is characterized in that ground anchorage (35) becomes equilateral triangle to arrange, is fixed on the injection facility base (31); The earth anchor upper plate (311) of each ground anchorage (35) is fixedly connected by connecting link, becomes one.
15, in-situ monitoring device for liquefaction of seabed soil according to claim 9, it is characterized in that the device in the underwater hydraulic power supply mechanism (36) all is contained in the diving sealable tank, by drawing jar outer petroleum pipeline process tank wall place in the jar, connect oil motor (357), (355) and oil cylinder (33), (342) by the hydraulic seal joint sealing.
16, in-situ monitoring device for liquefaction of seabed soil according to claim 9, it is characterized in that base (31) becomes hexagon, ground anchorage (35) is positioned at three alternate angles, and underwater hydraulic power supply mechanism (36) is positioned at another angle, and balance weight iron (312) is placed at all the other two angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100453619A CN100516872C (en) | 2005-12-12 | 2005-12-12 | In-situ monitoring device for liquefaction of seabed soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100453619A CN100516872C (en) | 2005-12-12 | 2005-12-12 | In-situ monitoring device for liquefaction of seabed soil |
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| CN1790016A CN1790016A (en) | 2006-06-21 |
| CN100516872C true CN100516872C (en) | 2009-07-22 |
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| CNB2005100453619A Expired - Fee Related CN100516872C (en) | 2005-12-12 | 2005-12-12 | In-situ monitoring device for liquefaction of seabed soil |
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