CN209636877U - A kind of model casing of simulated sea bottom landslide impact seabed pile foundation - Google Patents
A kind of model casing of simulated sea bottom landslide impact seabed pile foundation Download PDFInfo
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- CN209636877U CN209636877U CN201920002373.0U CN201920002373U CN209636877U CN 209636877 U CN209636877 U CN 209636877U CN 201920002373 U CN201920002373 U CN 201920002373U CN 209636877 U CN209636877 U CN 209636877U
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Abstract
It comes down the utility model relates to a kind of simulated sea bottom and impacts the model casing of seabed pile foundation.The purpose of this utility model, which is intended to test by model casing, probes into mechanical behavior of the seabed pile foundation in seabed mud-stone flow disaster.The technical solution of the utility model is: the model casing has the model slot for containing water, is placed in model slot water level Model Pile below and slideway, and the monitoring device for monitoring model stake；The model trough floor is equipped with the opening-like soil around pile room in top, fills in soil around pile room and bankets and be inserted into the Model Pile in banketing；The side top side wall of the soil around pile room is flexibly connected the slideway of long plate shape, which connects the adjustment mechanism for adjusting slideway tilt angle；Described slideway one end is flexibly connected the soil around pile room, and mud pit is equipped with above the other end, and mud pit bottom is equipped with the discharge pipe of slideway downward and plasma discharge valve I is housed.The utility model is suitable for submarine landslide Disaster Study field.
Description
Technical field
It comes down the utility model relates to a kind of simulated sea bottom and impacts the model casing of seabed pile foundation.Suitable for submarine landslide disaster
Research field.
Background technique
Deeply developing and utilizing with Ocean energy, ocean engineering operation place and job facilities construction are gradually
Develop to profundal zone.The submarine geological hazard problem that the marine facilities such as ocean blower, submarine pipeline, submarine cable face simultaneously
It becomes increasingly complex, be highly prone to destroy and cause serious economic loss even casualties.Submarine landslide is used as in coastal waters three
Angle continent and a kind of common geological process of continental shelf range, it has also become to offshore engineering structure even human life's security threat
One of maximum geological disaster.
Submarine landslide is on the one hand even if clast stream in the case where terrain slope very little, formed there are two aspect
By " water skiing " effect, can high-speed slide it is remote to hundreds of kms, this high speed impact will likely give damaging property of submarine facility
It influences；The environmental effect of another aspect submarine landslide is in the water surface hereinafter, landslide Forming Mechanism and migration adjustment receive wave action
Be affected.
Seabed pile foundation can generate structural damage, and due to the depth of water after meeting with submarine landslide geological disaster to it
Larger, the rugged complexity of submarine geomorphy, the maintenance difficulty, maintenance cost after seafloor structure destruction are relatively large, or even can not
It repairs.
And it is very limited for research of the submarine landslide disaster for the effect of pile foundation at present, in order to guarantee that seabed pile foundation exists
Safety in mud-stone flow disaster can only amplify safety coefficient as far as possible, to produce huge unnecessary cost.
Summary of the invention
Technical problem to be solved by the utility model is: providing a kind of punching of simulated sea bottom landslide for above-mentioned there are problem
Hit the model casing of seabed pile foundation, it is intended to which stress machine of the seabed pile foundation in seabed mud-stone flow disaster is probed by model casing test
System.
The technical scheme adopted by the utility model is a kind of model casing of simulated sea bottom landslide impact seabed pile foundation,
It is characterized in that: there is the model slot for containing water, be placed in model slot water level Model Pile below and slideway, and be used for monitoring model
The monitoring device of stake；
The model trough floor is equipped with the opening-like soil around pile room in top, fills in soil around pile room and bankets and banketing
The middle insertion Model Pile；
The side top side wall of the soil around pile room is flexibly connected the slideway of long plate shape, which connects for adjusting slideway
The adjustment mechanism of tilt angle；
Described slideway one end is flexibly connected the soil around pile room, is equipped with mud pit above the other end, mud pit bottom is equipped with
Downward the discharge pipe of slideway and be equipped with plasma discharge valve I.
The adjustment mechanism includes that the slideway being fixed in model groove sidewall adjusts motor, and slideway adjusts motor through being around in it
The separate soil around pile room end of slideway described in wire rope suspensioning on output shaft.
The monitoring device includes at least one of following apparatus:
Two displacement meters, one of them is mounted on the top of the Model Pile, another, which is mounted on, exposes the soil around pile
The Model Pile middle section banketed in room；
Several foil gauges being pasted on the outside of the Model Pile, the conducting wire of foil gauge penetrate inside Model Pile from through-hole；
Mode, pressure sensor and the sensor for pore water pressure being installed on the outside of the Model Pile；
The PIV sensor being arranged on the outside of the model slot；
The high-definition camera and two high-speed cameras being arranged on the outside of the model slot, the wherein camera lens of high-definition camera
It is directed at the slideway, the camera lens of two high-speed cameras is respectively aligned to the slideway both ends.
The soil around pile room is surrounded by several vertical baffles being fixed in the model trough floor, wherein connecting the cunning
The baffle in road is higher than the baffle of the baffle opposite side.
The angle formed between the top line and horizontal plane of the baffle of the baffle and its opposite side that are connected with the slideway
Difference between the slideway tilt angle is less than or equal to 30 °.
The model slot be cuboid, top opening, the model trough floor be steel plate, surrounding side wall be poly (methyl methacrylate) plate simultaneously
There is the iron bar of hooping to reinforce.
The model slot is equipped with thick liquid discharge mouth and discharge outlet far from the side wall of slideway side, is furnished with plasma discharge valve in thick liquid discharge mouth
II, water discharging valve is housed, the discharge outlet is higher than thick liquid discharge mouth in discharge outlet.
The model trench bottom is equipped with the hydraulic jack for adjusting model groove height.
The mud pit is supported in ground through hoisting mechanism, and hoisting mechanism includes hoisting bracket and is installed on hoisting bracket
Mud pit adjust motor, mud pit adjusts motor and through suspension hook suspends the mud pit in midair.
The slideway upper surface is equipped with the groove from close to soil around pile room end to far from soil around pile room end, recess width
It is the 1/2 of chute width.
The beneficial effects of the utility model are: the utility model is using the slideway being placed in model casing and is placed in above slideway
Mud pit simulation mudflow generating device, using the Model Pile simulated sea bottom pile foundation being arranged in model casing in the room village Zhou Tu,
To simulated implementation impact condition of the submarine landslide to seabed pile foundation, seabed mudflow is furthermore achieved for seabed pile foundation institute
Generate stress and strain relationship, seabed mudflow for seabed piling strtucture failure mechanism and seabed mudflow for seabed pile foundation
The research of Disaster Prevention Measures.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of model casing in embodiment.
Fig. 2 is the hoisting bracket structural schematic diagram of mud pit in embodiment.
Specific embodiment
As shown in Figure 1, the present embodiment is a kind of model casing of simulated sea bottom landslide impact seabed pile foundation, has and contain water
Model slot 1 is placed in model slot water level Model Pile 4 below and slideway 5, and the monitoring device for monitoring model stake.
In this example, model slot 1 is cuboid, and top opening, which is steel plate, and surrounding side wall is organic glass
Plate simultaneously has the iron bar of hooping to reinforce；Model slot 1 is equipped with thick liquid discharge mouth 10 and discharge outlet 8, thick liquid discharge mouth 10 far from the side wall of 5 side of slideway
It is upper to be furnished with plasma discharge valve II 11, water discharging valve 9 is housed, discharge outlet 8 is higher than thick liquid discharge mouth 10 in discharge outlet 8；It is indicated on the outside of model slot 1
Scale and zero graduation position is positioned above at the 10cm of bottom, 1 bottom of model slot are equipped with the liquid for adjusting 1 height of model slot
Press jack.
The steel plate of 1 bottom of model slot is equipped with the opening-like soil around pile room 3 in top, filled in soil around pile room banket and
It bankets middle insertion Model Pile 4.Wherein several vertical baffles 31 on steel plate of the soil around pile room 3 by being fixed on 1 bottom of model slot enclose
At.
Slideway 5 is long plate shape, and is equipped with the groove parallel with slideway length direction, recess width in the upper surface of the slideway
It is the 1/2 of chute width.5 one end of slideway is fixing end, and by hinge or adjusts that bolt 12 is mobilizable is connected to soil around pile
31 top of baffle of 3 side of room, the other end are that adjustable side is connected with the adjustment mechanism for adjusting slideway tilt angle.Wherein connect
The baffle 31 for connecing slideway 5 is higher than the baffle of the baffle opposite side, and the baffle for the baffle 31 and its opposite side being connected with slideway 5
Top line and horizontal plane between difference between 5 tilt angle of the angle formed and slideway be not more than 30 °.
Inner wall of the model slot 1 close to the adjustable side of slideway 5 is equipped with the block 16 for shelving the slideway；The tune of slideway 5
It saves and is equipped with mud pit 6 above end, 6 bottom of mud pit is equipped with the discharge pipe 2 of slideway downward and plasma discharge valve I 7 is housed.
Mud pit 6 is supported in ground through hoisting mechanism, and hoisting mechanism includes 14 He of hoisting bracket that bottom is equipped with idler wheel
The mud pit being installed on hoisting bracket adjusts motor 15 (such as Fig. 2), and mud pit adjusts motor and suspends mud pit 6 in midair through suspension hook 13.
In this example, adjustment mechanism includes that the slideway being fixed on 1 side wall of model slot adjusts motor 17, and slideway adjusts motor 17
Separate 3 end of soil around pile room of wire rope suspensioning slideway 5 through being around on its output shaft, and slideway 5 is adjusted by rope traction
Tilt angle；Slideway adjusts 17 output end of motor and is equipped with reel or reel.
In this example, monitoring device is connected to the data collection system on computer by signal wire, including in following apparatus extremely
Few one kind:
Two displacement meters being displaced when being impacted for record cast stake 4 by mudflow, one of them is mounted on the top of Model Pile 4
End, two 1 are mounted on 4 middle part of Model Pile exposed and banketed in soil around pile room 3；
Multiple interval 8cm are pasted onto the foil gauge in 4 outside of Model Pile, and the conducting wire of foil gauge penetrates in Model Pile from through-hole
Portion, the data for being automatically recorded under mudflow continuous action at regular intervals；
It is installed on the mode, pressure sensor and sensor for pore water pressure in 4 outside of Model Pile, mode, pressure sensor is for recording
Lateral forces situation of the Model Pile 4 when being impacted by mudflow, sensor for pore water pressure are used for record cast stake stake week pore pressure；
It is arranged in the PIV sensor of 1 outside corresponding position of model slot, PIV sensor is for acquiring model in certain time
Field flow in slot 1；
It is arranged in the high-definition camera and two high-speed cameras of 1 outside corresponding position of model slot, wherein high-definition camera
Alignment lens slideway 5, the camera lens of two high-speed cameras is respectively aligned to 5 both ends of slideway；High-speed camera refers to can be with very high
The video camera that frame number is imaged, for the initial velocity of test record mudflow and by speed when colliding with Model Pile 4；
High-definition camera refers to the video camera that can be imaged with very high resolution ratio, for recording shape when mudflow is slided along slideway 5
State.
The specific implementation step of the present embodiment is as follows:
1, it bankets in soil around pile room 3, banket the sandy gravel stratum of point lower layer and the Soft Soil Layer on upper layer, fills the process of Soft Soil Layer
In, the 15~20cm that often bankets carries out uniform compaction, water filling and arranges sensor for pore water pressure, carries out next layer again after soil body saturation is static
Banket, every layer banket fill after the completion of the upper surface that guarantees to banket it is horizontal and shaving processing is carried out before filling next layer, avoid
Artificial layering；It wherein bankets as business kaolin or weak soil, the filling-up thickness of sandy gravel stratum and Soft Soil Layer is according to specific experiment side
Case is adjusted；
2, it is adjusted needed for tilt angle to the experiment of slideway 5 by adjusting the rope traction that motor 15 is connect with slideway
Angle, and sandy soil or clay are filled in the groove on slideway 5；
3, Model Pile 4 is inserted in banketing in soil around pile room 3, before Model Pile inserting, is first pasted in Model Pile outer surface
Foil gauge is coated with one layer of epoxy resin outside foil gauge and is protected and is pierced by its conducting wire out of Model Pile, then in model
Stake outside arrangement mode pressure sensor, top layout displacement meter, finally install a circular cone pullover in Model Pile bottom, are used for
Facilitate and Model Pile 4 is pressed into soil, and protects Model Pile inner lead；Wherein foil gauge, mode, pressure sensor and displacement meter
The data collection system being connected to by signal wire on computer；Model Pile 4 for analog study Practical Project uses steel pipe,
Its diameter and wall thickness are obtained according to Practical Project scaled down, Model Pile 4 deeply banket depth required according to actual tests it is true
Fixed, range is generally 5~20 times of Model Pile diameter；
4, Model Pile 4 fills the water in model slot 1 after the completion of arranging；
5, PIV sensor, high-definition camera and two high-speed cameras are arranged in 1 outside corresponding position of model slot, and will
PIV sensor, high-definition camera and two high-speed cameras pass through the data collection system that signal wire is connected on computer；Its
The alignment lens slideway 5 of middle high-definition camera, the camera lens of two high-speed cameras are respectively aligned to 5 both ends of slideway；
6, mud needed for being loaded into mud pit 6, after model slot 1 is risen to corresponding height using hydraulic jack, by mud
It starches above the adjustable side of the outlet of discharge pipe 2 alignment slideway 5 of case 6；
7, the plasma discharge valve I 7 on the discharge pipe 2 of mud pit 6 is opened, test data is recorded；
8, terminate experiment, and recovery models slot 1 and experiment soil after mud is flow to end in mud pit 6；
9, finally, processing experiment the data obtained.
Claims (10)
1. a kind of model casing of simulated sea bottom landslide impact seabed pile foundation, it is characterised in that: have contain water model slot (1),
It is placed in model slot water level Model Pile below (4) and slideway (5), and the monitoring device for monitoring model stake；
Model slot (1) bottom plate is equipped with the opening-like soil around pile room (3) in top, fills in soil around pile room and bankets and filling out
The Model Pile (4) are inserted into soil；
The side top side wall of the soil around pile room (3) is flexibly connected the slideway (5) of long plate shape, which connects for adjusting cunning
The adjustment mechanism of road tilt angle；
Described slideway (5) one end is flexibly connected the soil around pile room (3), is equipped with mud pit (6) above the other end, mud pit bottom
Discharge pipe (2) equipped with slideway downward is simultaneously equipped with plasma discharge valve I (7).
2. the model casing of impact seabed pile foundation in simulated sea bottom landslide according to claim 1, it is characterised in that: the adjustment
Mechanism includes that the slideway being fixed on model slot (1) side wall adjusts motor (17), and slideway adjusts motor and is around on its output shaft
Wire rope suspensioning described in slideway (5) separate soil around pile room (3) end.
3. the model casing of impact seabed pile foundation in simulated sea bottom landslide according to claim 1, it is characterised in that: the monitoring
Device includes at least one of following apparatus:
Two displacement meters, one of them is mounted on the top of the Model Pile (4), another, which is mounted on, exposes the soil around pile room
(3) Model Pile (4) middle section banketed in；
Several foil gauges being pasted on the outside of the Model Pile (4), the conducting wire of foil gauge penetrate inside Model Pile from through-hole；
The mode, pressure sensor and sensor for pore water pressure being installed on the outside of the Model Pile (4)；
The PIV sensor being arranged on the outside of the model slot (1)；
The high-definition camera and two high-speed cameras being arranged on the outside of the model slot (1), the wherein camera lens of high-definition camera
It is aligned the slideway (5), the camera lens of two high-speed cameras is respectively aligned to the slideway (5) both ends.
4. the model casing of impact seabed pile foundation in simulated sea bottom landslide according to claim 1, it is characterised in that: the stake week
Native room (3) is surrounded by several vertical baffles (31) being fixed on model slot (1) bottom plate, wherein connecting the slideway (5)
Baffle be higher than the baffle opposite side baffle.
5. the model casing of impact seabed pile foundation in simulated sea bottom landslide according to claim 4, it is characterised in that: with the cunning
The angle and the slideway formed between the top line and horizontal plane of the connected baffle (31) in road (5) and its baffle of opposite side
(5) difference between tilt angle is less than or equal to 30 °.
6. the model casing of impact seabed pile foundation in simulated sea bottom landslide according to claim 1, it is characterised in that: the model
Slot (1) is cuboid, and top opening, which is steel plate, and surrounding side wall is poly (methyl methacrylate) plate and the iron bar for having hooping
It reinforces.
7. the model casing of impact seabed pile foundation in simulated sea bottom landslide according to claim 1 or 6, it is characterised in that: described
Model slot (1) is equipped with thick liquid discharge mouth (10) and discharge outlet (8) far from the side wall of slideway side, is furnished with plasma discharge valve in thick liquid discharge mouth (10)
II (11) are equipped with water discharging valve (9) in discharge outlet (8), and the discharge outlet (8) is higher than thick liquid discharge mouth (10).
8. the model casing of impact seabed pile foundation in simulated sea bottom landslide according to claim 1, it is characterised in that: the model
Slot (1) bottom is equipped with the hydraulic jack for adjusting model groove height.
9. the model casing of impact seabed pile foundation in simulated sea bottom landslide according to claim 1, it is characterised in that: the mud
Case (6) is supported in ground through hoisting mechanism, and hoisting mechanism includes hoisting bracket (14) and the mud pit that is installed on hoisting bracket
It adjusts motor (15), mud pit adjusts motor and suspends the mud pit (6) in midair through suspension hook (13).
10. the model casing of impact seabed pile foundation in simulated sea bottom landslide according to claim 1, it is characterised in that: the cunning
Road (5) upper surface is equipped with from close to the soil around pile room (3) end to the groove far from soil around pile room end, and recess width is that slideway is wide
The 1/2 of degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920002373.0U CN209636877U (en) | 2019-01-02 | 2019-01-02 | A kind of model casing of simulated sea bottom landslide impact seabed pile foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920002373.0U CN209636877U (en) | 2019-01-02 | 2019-01-02 | A kind of model casing of simulated sea bottom landslide impact seabed pile foundation |
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| CN209636877U true CN209636877U (en) | 2019-11-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157699A (en) * | 2019-12-30 | 2020-05-15 | 浙江大学 | Indoor test-based submarine landslide evaluation method |
| CN113945683A (en) * | 2021-10-13 | 2022-01-18 | 中海石油(中国)有限公司湛江分公司 | Slope well construction experimental device and experimental method |
-
2019
- 2019-01-02 CN CN201920002373.0U patent/CN209636877U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157699A (en) * | 2019-12-30 | 2020-05-15 | 浙江大学 | Indoor test-based submarine landslide evaluation method |
| CN113945683A (en) * | 2021-10-13 | 2022-01-18 | 中海石油(中国)有限公司湛江分公司 | Slope well construction experimental device and experimental method |
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