CN203078741U - In-situ detection device of strength of beach and shallow sea sediments - Google Patents
In-situ detection device of strength of beach and shallow sea sediments Download PDFInfo
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- CN203078741U CN203078741U CN 201320066893 CN201320066893U CN203078741U CN 203078741 U CN203078741 U CN 203078741U CN 201320066893 CN201320066893 CN 201320066893 CN 201320066893 U CN201320066893 U CN 201320066893U CN 203078741 U CN203078741 U CN 203078741U
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Abstract
The utility model provides an in-situ detection device of the strength of beach and shallow sea sediments. The in-situ detection device comprises a control boat provided with a vacuum generation device and an air inflation device, and a framework device provided with an injection device and a hydraulic device, wherein an air pressure cabin on the framework device is respectively connected with the air inflation device and the vacuum generation device. The air pressure cabin is a cylindrical leather bag with a circular cross section and is vertically arranged; the leather bag is further externally provided with a protective barrel; a water discharging hole is formed in the surface of the protective barrel; and the water discharging hole is oval, V-shaped or U-shaped. A method comprises the following steps of: pulling the framework device to a target point location by the boat to sink into the seabed by self gravity; testing the strength of the sediments below the seabed in a hydraulic injection manner, so as to obtain a contact probe strength testing parameter; dividing a test point stratum according to the strength value of each layer of soil and naming; and determining the bearing capacity and the modulus of beach and shallow sea foundation soil. According to the in-situ detection device disclosed by the utility model, the disadvantage that a large-sized surveying boat cannot drive into a beach and shallow sea zone to carry out in-situ test on the strength of the seabed sediments is overcome; and the in-situ detection device can repeatedly carry out geological examination on different seabed zones, so that the cost is greatly reduced and the efficiency is improved.
Description
Technical field
The utility model belongs to Marine Geology exploration field, relates in particular to a kind of beach neritic sediment intensity in situ detection device.
Background technology
The neritic area, beach mainly refers to coastal beach, intertidal zone and sublittoral, and depth of water scope is mainly at 0-10 rice, and it has important scientific research and economic value, has become the critical position of Oil Exploration in China exploitation at present.Beach neritic sediment intensity is carried out in situ test, can significantly reduce the quantity of boring in the ocean engineering prospecting, improve the quality and the precision of engineering investigation, economic benefit is obvious, and the marine engineering geology evaluation exploration cycle is also shortened dramatically.Along with exploitation marine oil and gas resource continue carry out, the sediment strength in-situ testing technique will be widely used in the engineering geological survey in oil and gas development district, shallow sea, beach.
At present, the marine bottom sediment intensity in-situ testing technique that is used for marine operation is very ripe abroad, and be widely used in the marine engineering field, mainly lean against and use static sounding equipment or combination probing to realize on the investigation ship of being furnished with crane or side gallows.But these seabed static sounding equipment having relatively high expectations to carrier (research vessel) and driling rig, the test equipment fitness for purpose that depth of invertigation is big is loaded on the large-tonnage research vessel or on the drilling platform, therefore sounding device is portable relatively poor, can't use in the neritic area, beach, and involving great expense of equipment, the use cost height.And at home, the sediment strength in-situ testing technique of marine operation also is not widely adopted, and main by buying or lease external instrument and equipment, and the equipment that is suitable for neritic area, beach sediment strength in situ test is then more rare.Therefore in order to understand neritic area, beach marine bottom sediment intensity and stratigraphic fluctuation situation, present stage generally adopts a large amount of probings, sampling and laboratory experiment to substitute, and reconnoitres needs with the engineering construction of satisfying growing shallow sea, the beach oil and gas development of China.
Find through existing technical literature retrieval, Chinese patent title: ground sounding device and ground exploitation method under water under water, number of patent application 200910244129.6, though this invention has proposed a kind ofly can carry out the static sounding equipment of ground under water of Geotechnical Engineering exploration and the exploitation method of ground under water that adopts this equipment in different scale deep water, the problem of the portable difference of sounding device when having solved seabed intensity in situ test to a certain extent.But the instrument volume that this method relates to is big, and weight is big, must load with big ship, is only applicable to the seabed engineering geologic prospect at deep-sea.So, aspect the neritic sediment intensity in-situ testing technique of beach, China does not still have the technology and equipment of own independent intellectual property rights at present, and this also is the bottleneck technical barrier in the engineering constructions such as cable laying, harbour, seashore Infrastructure under neritic area, China beach resource exploitation platform, transportation pipe line and the sea always.
Summary of the invention
The utility model provides a kind of beach neritic sediment intensity in situ detection device at the deficiencies in the prior art or defective, makes it carry out continuous injection strength test to marine bottom sediment under the neritic environment of beach.
A kind of beach neritic sediment intensity in situ detection device comprises the control ship that control setup is housed, and by the lower apron that the control ship is controlled, it is characterized in that also having gas filled device (7) and vacuum generating device on the described control ship;
Described lower apron comprises a frame mounting, and the bottom center of this frame mounting is provided with perforation device, center of top is provided with hydraulic efficiency gear; And also be provided with on the frame mounting and be used to make lower apron to shift to the air pressure cabin of the water surface from the bottom;
Described gas filled device is connected with the air pressure cabin respectively with vacuum generating device.
In addition, beach of the present utility model neritic sediment intensity in situ detection device also has at least one in the following additional technical feature:
Above-mentioned air pressure cabin is that cross-sectional plane is circular cylindric leather bag, and described cylindric leather bag vertically is arranged on the frame mounting.
Above-mentioned cylindric leather bag also is provided with the protection tube outward.
Above-mentioned protection tube surface is provided with drain gutter.
The percent opening of above-mentioned drain gutter on protection tube surface is that the surface of bottom 1/6 is 3/dm
2, top 1/6 the surface be 1/dm
2, the surperficial percent opening at 2/3 between bottom to the top is at 1～3/dm
2Between.
The said frame device is a rectangular frame, and described cylindric leather bag is arranged on four jiaos of rectangular frame, and each angle be provided with at least 4 cylindric leather bags; In before perhaps described rectangular frame is divided into back three sections, described cylindric leather bag is arranged on the leading portion and the back segment of rectangular frame, and the cylindric leather bag quantity of two sections of front and back equates.
Above-mentioned drain gutter be shaped as ellipse; And the oval first half is provided with towards protection tube in-to-in streamlined reefer housing.
Perhaps above-mentioned drain gutter is shaped as V-arrangement or U-shaped; And the drain gutter place of described V-arrangement or U-shaped is provided with towards described protection tube in-to-in streamlined reefer housing.
Above-mentioned perforation device, comprise that at least one can continue sounding rod, be used for to continue the sounding rod accommodation chamber that holds and lead of sounding rod, be used to advance the sounding rod propulsion module that can continue sounding rod, with holding device under the sounding rod that the sounding rod accommodation chamber is connected, with holding device on the sounding rod that the sounding rod propulsion module is connected, the contact probe that can continue the sounding rod lower end, and the displacement pickup that is used for the displacement data of sounding rod propulsion module accurately is uploaded to control setup, can continue the linear counting in good time of the actual depth of penetration set a distance of sounding rod sender with being used to, be uploaded to control setup, trigger the feeler inspection degree of depth signal transmitter of the acquisition and recording of intensive parameter.
Above-mentioned cylindric leather bag, inside is provided with pressure sensor, is used for the gasbag pressure data upload to control setup.
The front end of said frame device also is provided with a directional stream-guidance device.
The centre of buoyancy in above-mentioned air pressure cabin is higher than 1/2 of frame mounting height.
Utilize said apparatus that the beach neritic sediment is carried out the method for intensity in situ detection, it is characterized in that may further comprise the steps:
1) with crane frame mounting is hung in the water, by the air pressure cabin part of frame mounting more than 50% floated in the water, whole frame mounting links to each other with the control ship by hawser;
2) the control shipping agency is to first neritic sediment object point position, beach to be detected, according to operating depth be scheduled to reconnoitre the sediment depth situation and be connected and can continue sounding rod to requiring length;
3) on the control ship, start vacuum generating device,, make frame mounting utilization deadweight sink to the seabed by vacuumizing to the air pressure cabin;
4) on the control ship data line of lower apron is connected in control setup on the control ship through its communication interface, is finishing the program task of sensor inspection, initial value setting and affirmation;
5) on the control ship, pass through control setup primer fluid pressure device, by the hydraulic power effect realize sounding rod and contact probe continuously under pass through, the static point resistance sensor of contact probe, side friction sensor are exported the electric signal with static point resistance, side friction and the frictional ratio of change in depth continuously, be sent to the control setup that is positioned on the control ship in real time by data cable, divide the test point stratum and name according to the strength rating of each layer soil, and the bearing capacity and the modulus of shallow sea, definite beach foundation soil;
6) arrive to subscribe the degree of depth, pass through stopping under,, realize carrying on sounding rod and contact probe continuous, leave the sea bed face to contact probe by hydraulic power effect control sounding rod holding device and sounding rod propelling unit;
7) start gas filled device in control on the ship,, make the frame mounting come-up, float in the water to the part of single-piece more than 50% by to the inflation of air pressure cabin;
8) the control ship tows lower apron to next object point position, repeating step 2) to 7) until the detection of finishing all object point positions.
Compared with prior art, the utility model adopts a kind of beach neritic sediment intensity home position testing method, and this method can drag in situ test equipment and be the entire equipment power supply with ship in water.The described buoyancy life described frame mounting of device may command the rising and falling in water that disappear both can make entire equipment sink to the seabed and carry out static sounding, can after static sounding finishes entire equipment be emerged again.The utility model has overcome the existing simple machine that is used to detect the beach neritic sediment that can pull the plug can't adapt to the problem that high strength, high efficiency detect.Operating depth scope of the present utility model is 0 ~ 10m, uses method of the present utility model can carry out marine bottom sediment intensity in situ test at the beach neritic province domain that the large-scale investigation ship can't drive into, and can increase work efficiency greatly.Use method of the present utility model can also be repeatedly, repeat to carry out geological exploration at different sea-bed areas, greatly reduce the work total cost.Facts have proved the utility model be a kind of simple effectively and measuring accuracy shallow sea, beach home position testing method accurately and reliably, reconnoitring the test marine bottom sediment degree of depth is 10m, can satisfy the depth of exploration requirement in cable laying, harbour, the seashore infrastructure construction under neritic area, beach gas resource exploitation platform, transportation pipe line and the sea.
Description of drawings
Fig. 1 is an overall structure scheme drawing of the present utility model.
Fig. 2 is the structural representation of lower apron of the present utility model.
Fig. 3 is the birds-eye view (not containing perforation device and hydraulic efficiency gear among the figure) of lower apron of the present utility model.
Fig. 4 is the structural representation in air pressure of the present utility model cabin.
Fig. 5 is the structural representation of protection tube of the present utility model.
Fig. 6 is the scheme drawing of the drain gutter of protection tube of the present utility model;
Wherein, Fig. 6 A is oval drain gutter, and Fig. 6 B is the V-arrangement drain gutter, and Fig. 6 C is the U-shaped drain gutter.
Fig. 7 is the structural representation of perforation device of the present utility model.
Fig. 8 is the structured flowchart of control setup of the present utility model.
Fig. 9 is the FB(flow block) of method of inspection of the present utility model.
Figure 10 is a beach neritic sediment intensity in situ detection diagram of curves of the present utility model.
Wherein, 1, frame mounting, 2, the air pressure cabin, 21, inflation freeing pipe; 22, cylindric leather bag, 23, protection tube, 24, drain gutter, 25, streamlined reefer housing; 3, perforation device, 31, can continue sounding rod, 32, the sounding rod accommodation chamber; 33, holding device under the sounding rod, 34, holding device on the sounding rod, 35, the sounding rod propulsion module; 36, contact probe, 4, hydraulic efficiency gear, 5, control setup; 6, control ship, 7, gas filled device, 8, vacuum generating device.
The specific embodiment
As shown in Figure 1, beach of the present utility model neritic sediment intensity in situ detection device mainly comprises:
Described lower apron comprises frame mounting 1, is used to beach neritic sediment intensity in situ detection device that counter-force is provided and is towed in water by hull; Air pressure cabin 2 is arranged in the frame mounting 1, and is connected with vacuum generating device 8 with described gas filled device 7, is used to frame mounting 1 to provide and eliminate buoyancy, and whole lower apron is grown floating on water to the water surface from the bottom; Perforation device 3 is arranged in the frame mounting 1, is used for shallow sea, beach marine bottom sediment intensity is carried out original position injection test; Hydraulic efficiency gear 4 is arranged in the frame mounting 1, is used to described perforation device 3 that Clamping force and propulsive force are provided.Control setup 5 is provided with aboard ship, and the state that is used for described air pressure cabin 2, perforation device 3, hydraulic efficiency gear 4 shows and operation, and measures and handle the sediment strength parameter.
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
Shown in Fig. 1～8, beach of the present utility model neritic sediment intensity in situ detection device comprises above water and lower apron:
Above water---
(1) control setup 5, by the single-purpose computer that CPU, telltale, memory device, keyboard, mouse, chopping machine, communication interface and system program are formed, communication interface comprises the data communication interface of the cable insert row, connection underwater hydraulic device and the perforation device that connect the deck source of AC and is connected the data transmission interface of contact probe data line under water.
(2) gas filled device 7 is as air compressor.
(3) vacuum generating device 8 is as vacuum pump.
(4) control ship 6, the control ship 6 of the utility model embodiment only needs 120 ~ 240 horsepowers, can carry out submarine geology in the neritic area, beach of the following depth of water of 10m and reconnoitre, and set up the quantitative relationship of reconnoitring data and Rock soil Characteristics, the Geotechnical Engineering characteristic is carried out rational evaluation.
Lower apron (shown in Fig. 1～3)---
(1) frame mounting 1; can select the structure of steel product of high-strength corrosion-resisting for use; be used to hold and protect wherein air pressure cabin 2, perforation device 3 and hydraulic efficiency gear 4, and sit the end for whole lower apron enough counter-forces, the stability that reconnoitre in the enhancing seabed are provided when carrying out static sounding with the hydraulic pressure injection.Because frame mounting 1 need be convenient to vehicular transport, the weight of described frame mounting is 1～2t simultaneously.Therefore, in an example of the present utility model, frame mounting 1 is of a size of 2.5 * 2.2 * 2.0m, and conducting oneself with dignity is 1.5t.
(2) the air pressure cabin 2, and shown in Fig. 1～4, air pressure cabin 2 is provided with inflation freeing pipe 21, and described air compressor is inflated to predetermined pressure via inflation freeing pipe 21 to described air pressure cabin 2; Described vacuum pump is discharged the gas in air pressure cabin 2 via inflation freeing pipe 21.
Alternatively, air pressure cabin 2 can for cross-sectional plane be circular cylindric leather bag 22-as shown in Figure 4, and cylindric leather bag 22 vertically is arranged on the frame mounting 1, this structure makes when no matter inflating or can both make gas be positioned at the top in air pressure cabin 2 during exhaust, thereby the center of gravity that makes lower apron is in the lower part of frame mounting 1 all the time, stability in the time of can improving lower apron rising or decline has been avoided the rollover of lower apron in water with showing.Cylindric leather bag 22 inside also are provided with pressure sensor (not marking), are used for the gasbag pressure data upload to control setup 5.
As shown in Figure 5, air pressure cabin 2 also comprises protection tube 23, and on this protection tube 23 many drain gutters 24 is arranged, and is used for resisting the big differential water pressures and the draught head that form in the seabed.The percent opening of above-mentioned drain gutter 24 on protection tube 23 surfaces is that the surface of bottom 1/6 is 3/dm
2, top 1/6 the surface be 1/dm
2, the surface drainage porosity at 2/3 between bottom to the top is at 1～3/dm
2Between.Experiment shows, the percent opening structure of successively decreasing successively is better than the uniform structure of percent opening from bottom to top.
Shown in Fig. 6 a, above-mentioned drain gutter 24 be shaped as ellipse; And the oval first half is provided with towards protection tube 23 in-to-in streamlined reefer housings 25.
Perhaps as described in Fig. 6 b, Fig. 6 c, above-mentioned drain gutter 24 be shaped as V-arrangement or U-shaped; And drain gutter 24 places of described V-arrangement or U-shaped are provided with towards described protection tube 23 in-to-in streamlined reefer housings 25.Experiment shows that the structure that is provided with streamlined reefer housing 25 is better than the mono-perforation structure; And V-arrangement or U-shaped drain gutter and separately the streamlined reefer housing of shape be better than oval drain gutter and streamlined reefer housing thereof, the water conservancy diversion better effects if makes that the lower apron lifting is more stable, and be easier to processing.
In an embodiment of the present utility model, according to calculating, 24 cylindric leather bags 22 can provide the buoyancy of about 2 ~ 3t, can after the seabed static sounding finishes frame mounting 1 be emerged smoothly.This embodiment as shown in Figure 3, said frame device 1 is a rectangular frame, described rectangular frame be divided into before in back three sections, described cylindric leather bag 22 is arranged on the leading portion and the back segment of rectangular frame, and respectively there are 12 cylindric leather bags 22 front and back for two sections.Among this embodiment, inflation freeing pipe 21 is arranged at the top of cylindric leather bag 22, will inflate the side that freeing pipe 21 is shown in frame mounting 1 among the figure.
As described in Figure 2, the centre of buoyancy in described air pressure cabin 2 is higher than 1/2 of frame mounting 1 height, the stability with further enhancing frame mounting when floating at sea.
(3) perforation device 3, as shown in Figure 7, perforation device 3 comprises that at least one can continue under sounding rod 31, sounding rod accommodation chamber 32, the sounding rod holding device 34, sounding rod propulsion module 35, contact probe 36, displacement pickup (not marking) and feeler inspection degree of depth signal transmitter (not marking) on holding device 33, the sounding rod.
Wherein, sounding rod accommodation chamber 32 is used for continuing holding of sounding rod 31 and leads.Holding device 33 is connected with sounding rod accommodation chamber 32 under the sounding rod, is used for continuing sounding rod 31 clampings and makes the described sounding rod 31 that continues fixing with sounding rod accommodation chamber 32.Sounding rod propulsion module 35 is used for propelling can continue sounding rod 31.Holding device 34 is connected with sounding rod propulsion module 35 on the sounding rod, is used for continuing sounding rod 31 clampings and fixing with sounding rod propulsion module 35, for the described sounding rod 31 that continues provides Clamping force.Contact probe 36 with can continue sounding rod 31 and be connected, be used to gather the intensive parameter of marine bottom sediment.Displacement pickup (not marking) is used for the displacement data of sounding rod propulsion module 35 accurately is uploaded to control setup 5.Feeler inspection degree of depth signal transmitter (not marking) is used to the actual depth of penetration set a distance counting sender that can continue sounding rod 31, is uploaded to control setup 5, triggers the acquisition and recording of intensive parameter.
(4) hydraulic efficiency gear 4, and described hydraulic efficiency gear 4 and perforation device 3 adjacent settings are used to the hydraulic pressure injection that Clamping force and propulsive force are provided, and can simplify hydraulic tubing.In an embodiment of the present utility model, hydraulic efficiency gear 4 is arranged on the top of frame mounting 1, by holding device 33 under holding device 34 and the sounding rod on hydraulic tubing control sounding rod propulsion module 35, the sounding rod, thus control can continue sounding rod 31 and contact probe 36 following pass through and on carry.
For example, the process of passing through is under the hydraulic pressure: at first by control setup 5 primer fluid pressure devices 4, can continue sounding rod 31 by holding device 34 clampings on the hydraulic power control sounding rod fixes with sounding rod propulsion module 35, sounding rod lower fixture 33 is a releasing orientation, controls sounding rod propulsion module 35 then and drives and can continue extremely maximum advance distance of sounding rod 31 and contact probe 36 downward injection.Holding device 33 clamps that can to continue sounding rod 31 fixing with sounding rod accommodation chamber 32 under this moment sounding rod, holding device 34 unclamps on the sounding rod, control sounding rod propulsion module 35 then and return its initial position, repetition above-mentioned steps to displacement pickup is checked through and can continues sounding rod 31 and 36 times injection seabeds of contact probe desired depth.Can continue sounding rod 31 and contact probe 36 on to put forward process then opposite.
In addition, also comprise described hydraulic efficiency gear 4 is carried out the leak free sealing arrangement,, make hydraulic efficiency gear 4 under the environment of hermetically drying, to work under the pressure of seabed, to seal.
As shown in Figure 8, the single-purpose computer that control setup 5 is made up of CPU, telltale, memory device, communication interface, keyboard, mouse, chopping machine and system program, system program comprise system acting program, system's setting program, data acquisition program, data processor.Wherein the system acting program is mainly finished the disappear state of device, perforation device and hydraulic efficiency gear of buoyancy life and is shown and the relevant action instruction manipulation.System's setting program is mainly finished parameter such as engineering name, hole number, depth coefficient, measurement date, curve generation, the sensor coefficient of test document and is set.Data acquisition program is finished the record and the preservation of sensor inspection, initial value setting and intensity data.Data processor is mainly finished operations such as the moving of data file, copy, deletion, rename and mapping, printing.
Beach of the present utility model neritic sediment intensity in-situ detection method mainly comprises:
After lower apron is dragged to the object point position by ship, the seabed is sunk in 1 deadweight by frame mounting, test sedimental intensity below the sea bed in hydraulic pressure injection mode, because frame mounting 1 provides enough counter-forces for the hydraulic pressure injection of beach neritic sediment intensity in situ test equipment, thereby make beach neritic sediment intensity in situ detection device can carry out trouble free service in the seabed, and can obtain contact probe strength test parameter, thereby can divide the test point stratum and name, and the bearing capacity and the modulus of shallow sea, definite beach foundation soil according to the strength rating of each layer soil.
Below in conjunction with Fig. 9 the step of present embodiment is done following explanation:
(1) connect whole in situ test equipment, with crane frame mounting is hung in the water, by air pressure cabin 2 50% ~ 100% of frame mounting 1 is floated in the water, whole frame mounting 1 links to each other with hull by hawser.
(2) drag entire equipment to the target operation point with ship, be connected and continue sounding rod 31 with the predetermined sediment depth situation of reconnoitring to requiring length according to operating depth.
(3) start vacuum pump aboard ship, vacuumize, make equipment sit the end by deadweight by the air pressure cabin 2 of inflation freeing pipe 21 in frame mounting 1.
(4) aboard ship will be under water the sounding rod data line be connected in ship upper controller 5 through its communication interface, finish sensor inspection, initial value setting and confirm the supervisor task.
(5) start the underwater hydraulic device by control setup 5 aboard ship, change-over valve group by hydraulic power effect drive, the control sounding rod is holding device and sounding rod propelling unit up and down, realize sounding rod and contact probe continuously under pass through, the static point resistance sensor of contact probe, side friction sensor output continuously are sent to the control setup that is positioned on the ship in real time with the electric signal of static point resistance, side friction and the frictional ratio of change in depth by data cable; Divide the test point stratum and name according to the strength rating of each layer soil, and the bearing capacity and the modulus of shallow sea, definite beach foundation soil.
(6) to subscribing degree of depth 5m, pass through stopping under, drive the change-over valve group by the hydraulic power effect, the control sounding rod is holding device and sounding rod propelling unit up and down, realizes carrying on sounding rod and contact probe continuous, leaves the sea bed face to contact probe.
(7) start air compressor aboard ship,, make the frame mounting come-up, float in the water to single-piece 50% ~ 100% by the air pressure cabin inflation of inflation freeing pipe in frame mounting.
The utility model as required can repeating step (2)～(7) after step (7) finishes.
Accompanying drawing 10 be the foregoing description at depth of water 11m place, the intensity detection in the marine bottom sediment 5m scope is figure as a result, comprising static point resistance, side friction and frictional ratio with the change in depth curve.According to the result of a measurement of static point resistance, side friction and frictional ratio, can be five layers with the stratigraphic classification of this test point, each layer soil mechanics index is described below:
The 1. layer: 0～0.6m, bed thickness 60cm, average static point resistance is 0.2MPa, and average side friction is 2kPa, and frictional ratio is 1.0%.Bearing capacity of foundation is 0.09MPa, and compression modulus is 1.1MPa.Infer that this layer is a mucky silt.
The 2. layer: 0.6～1.1m, bed thickness 50cm, average static point resistance is 0.6MPa, and average side friction is 21.5kPa, and frictional ratio is 3.6%, and bearing capacity of foundation is 0.16MPa, compression modulus is 2.5MPa, infers that this layer is the chiltern crust layer.
The 3. layer: 1.1～3.1m, bed thickness 200cm, average static point resistance is 0.2MPa, and average side friction is 5kPa, and frictional ratio is 2.5%, and bearing capacity of foundation is 0.09MPa, compression modulus is 1.1MPa, infers that this layer is a mucky silt.
The 4. layer: 3.1～3.7m, bed thickness 60cm, average static point resistance is 0.7MPa, and average side friction is 6.0kPa, and frictional ratio is 0.9%, and bearing capacity of foundation is 0.15MPa, compression modulus is 2.8MPa, infers that this layer is the chiltern crust layer.
The 5. layer: 3.7～5.0m, bed thickness 130cm, average static point resistance is 0.1MPa, and average side friction is 4kPa, and frictional ratio is 4%, and bearing capacity of foundation is 0.07MPa, compression modulus is 0.7MPa, infers that this layer is a silty clay.
Can know by above analysis and to find out, the fine difference that can obviously reflect shallow sea, beach marine bottom sediment mechanical property according to the method for beach of the present utility model neritic sediment intensity in situ test, as the mucky silt of 1.1～3.1m and the silty clay of 3.7～5.0m, its measuring accuracy and reliability all are better than traditional probing alternative method.
Because beach of the present utility model neritic sediment intensity home position testing method can carry out the marine bottom sediment strength test and have the advantages that to walk the aerial survey examination continuously at the beach neritic province domain that large-scale scientific investigation ship can't drive into, the quantity of boring will can be reduced in its utilization and the prospecting of neritic area, beach ocean engineering, when increasing work efficiency, can also reduce the expense of engineering investigation greatly, under neritic area, beach gas resource exploitation platform, transportation pipe line and sea, have application value widely in the geologic prospect of cable laying, harbour, seashore infrastructure construction.
Claims (9)
1. beach neritic sediment intensity in situ detection device, comprise the control ship (6) that control setup (5) is housed, and, it is characterized in that described control ship (6) upward also has gas filled device (7) and vacuum generating device (8) by the lower apron that control ship (6) is controlled;
Described lower apron comprises a frame mounting (1), and the bottom center of this frame mounting (1) is provided with perforation device (3), center of top is provided with hydraulic efficiency gear (4); And also be provided with on the frame mounting (1) and be used to make lower apron to shift to the air pressure cabin (2) of the water surface from the bottom;
Described gas filled device (7) is connected with air pressure cabin (2) respectively with vacuum generating device (8).
2. beach as claimed in claim 1 neritic sediment intensity in situ detection device it is characterized in that described air pressure cabin (2) is that cross-sectional plane is circular cylindric leather bag (22), and described cylindric leather bag (22) is arranged on vertically on the frame mounting (1).
3. beach as claimed in claim 2 neritic sediment intensity in situ detection device is characterized in that the outer protection tube (23) that also is provided with of described cylindric leather bag (22).
4. beach as claimed in claim 3 neritic sediment intensity in situ detection device is characterized in that described protection tube (23) surface is provided with drain gutter (24).
5. beach as claimed in claim 2 neritic sediment intensity in situ detection device, it is characterized in that said frame device (1) is a rectangular frame, and described cylindric leather bag (22) is arranged on four jiaos of rectangular frame, and each angle be provided with at least 4 cylindric leather bags (22); In before perhaps described rectangular frame is divided into back three sections, described cylindric leather bag (22) is arranged on the leading portion and the back segment of rectangular frame, and cylindric leather bag (22) quantity of two sections of front and back equates.
6. beach as claimed in claim 4 neritic sediment intensity in situ detection device, what it is characterized in that above-mentioned drain gutter (24) is shaped as V-arrangement or U-shaped; And the drain gutter of described V-arrangement or U-shaped (24) is located to be provided with towards described protection tube (23) in-to-in streamlined reefer housing (25).
7. beach as claimed in claim 1 neritic sediment intensity in situ detection device, it is characterized in that described perforation device (3), comprise that at least one can continue sounding rod (31), be used for to continue the sounding rod accommodation chamber (32) that holds and lead of sounding rod (31), be used for advancing the sounding rod propulsion module (35) that can continue sounding rod (31), with holding device (33) under the sounding rod that sounding rod accommodation chamber (32) is connected, with holding device (34) on the sounding rod that sounding rod propulsion module (35) is connected, the contact probe (36) that can continue sounding rod (31) lower end, and the displacement pickup that is used for the displacement data of sounding rod propulsion module (35) accurately is uploaded to control setup (5), can continue the linear counting in good time of the actual depth of penetration set a distance of sounding rod (31) sender with being used to, be uploaded to control setup (5), trigger the feeler inspection degree of depth signal transmitter of the acquisition and recording of intensive parameter.
8. beach as claimed in claim 2 neritic sediment intensity in situ detection device is characterized in that described cylindric leather bag (22), and inside is provided with pressure sensor, is used for the gasbag pressure data upload to control setup (5).
9. beach as claimed in claim 1 neritic sediment intensity in situ detection device is characterized in that the centre of buoyancy in above-mentioned air pressure cabin (2) is higher than 1/2 of frame mounting (1) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201320066893 CN203078741U (en) | 2013-02-05 | 2013-02-05 | In-situ detection device of strength of beach and shallow sea sediments |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066893 CN203078741U (en) | 2013-02-05 | 2013-02-05 | In-situ detection device of strength of beach and shallow sea sediments |
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| CN203078741U true CN203078741U (en) | 2013-07-24 |
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| CN 201320066893 Expired - Fee Related CN203078741U (en) | 2013-02-05 | 2013-02-05 | In-situ detection device of strength of beach and shallow sea sediments |
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| CN (1) | CN203078741U (en) |
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| CN103144751A (en) * | 2013-02-05 | 2013-06-12 | 中国海洋大学 | Original-space detector and detection method for beach shallow sea sediment strength |
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| CN108387713A (en) * | 2018-02-27 | 2018-08-10 | 国家海洋局北海海洋工程勘察研究院 | A kind of bottom sediment test device, injection system and injection method |
| CN108891564A (en) * | 2018-08-01 | 2018-11-27 | 西安誉博机器人系统技术有限公司 | Radiation hardness underwater operation robot |
| CN109444981A (en) * | 2018-11-30 | 2019-03-08 | 天津大学 | A kind of aqueous vapor autocontrol sea floor exploration platform and exploitation method |
| WO2019237893A1 (en) * | 2018-06-14 | 2019-12-19 | 中国海洋大学 | In-situ long-term observation apparatus and method for deep-sea base engineering geological environment |
| CN111348159A (en) * | 2020-02-13 | 2020-06-30 | 中国海洋大学 | Device and method for arranging sensor array in horizontal direction of seabed |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103144751A (en) * | 2013-02-05 | 2013-06-12 | 中国海洋大学 | Original-space detector and detection method for beach shallow sea sediment strength |
| CN103144751B (en) * | 2013-02-05 | 2015-08-12 | 中国海洋大学 | A kind of beach shallow sea sediment strength in situ detection device and method |
| CN107632121A (en) * | 2017-10-18 | 2018-01-26 | 中国海洋大学 | A kind of subsea hydraulic perforation device and method |
| CN108387713A (en) * | 2018-02-27 | 2018-08-10 | 国家海洋局北海海洋工程勘察研究院 | A kind of bottom sediment test device, injection system and injection method |
| WO2019237893A1 (en) * | 2018-06-14 | 2019-12-19 | 中国海洋大学 | In-situ long-term observation apparatus and method for deep-sea base engineering geological environment |
| JP2020527221A (en) * | 2018-06-14 | 2020-09-03 | 中国海洋大学 | Deep-sea pedestal-type engineering geological environment in-situ long-term observation equipment and methods |
| US11499826B2 (en) * | 2018-06-14 | 2022-11-15 | Ocean University Of China | Long-term in-situ observing device and method for deep sea bottom- supported engineering geological environment |
| CN108891564A (en) * | 2018-08-01 | 2018-11-27 | 西安誉博机器人系统技术有限公司 | Radiation hardness underwater operation robot |
| CN109444981A (en) * | 2018-11-30 | 2019-03-08 | 天津大学 | A kind of aqueous vapor autocontrol sea floor exploration platform and exploitation method |
| CN111348159A (en) * | 2020-02-13 | 2020-06-30 | 中国海洋大学 | Device and method for arranging sensor array in horizontal direction of seabed |
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