CN105525636B - Border on the sea foundation ditch dynamic response model experimental rig under simulated waves load action - Google Patents
Border on the sea foundation ditch dynamic response model experimental rig under simulated waves load action Download PDFInfo
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- CN105525636B CN105525636B CN201610066703.3A CN201610066703A CN105525636B CN 105525636 B CN105525636 B CN 105525636B CN 201610066703 A CN201610066703 A CN 201610066703A CN 105525636 B CN105525636 B CN 105525636B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Abstract
The invention discloses the foundation ditch dynamic response model experimental rig that bordered on the sea under a kind of simulated waves load action.The device includes model casing, supporting steel frame, drainage slope and measurement system.Model casing includes model cabinet frame, retaining wall, breakwater and sensor fixed support.Drainage slope includes slope frame, slope panel, poly (methyl methacrylate) plate and damping rod.Damping rod is supported between drainage slope and wave channel；Miniature soil pressure cell is embedded with retaining wall；Breakwater is placed in suspension wave height recorder in front of foundation ditch master end, breakwater；Sensor fixed support is placed on model casing bottom, by fixing based on pore pressure.Apparatus of the present invention can be simulated under different foundation ditch width, barricade embedded depth, the distance of breakwater to barricade and different element of wave effects, the response of the active and passive lateral earth pressure of foundation ditch and pore water pressure.The present invention can provide effective test data for the foundation ditch dynamic response Study on Problems that bordered on the sea under Wave Load and support, and provide help to theory analysis.
Description
Technical field
The present invention relates to the experimental rig that soil pressure, pore water pressure are measured in a kind of ocean base pit engineering, particularly relate to
And the model test apparatus of the border on the sea passive lateral earth pressure of foundation ditch master and the pore water pressure response of element of wave change, it can be used for
Measure different excavation of foundation pit width, different excavation of foundation pit depth, different barricade embedded depths and different barricades, breakwater spacing
Under border on the sea the passive lateral earth pressure value of foundation ditch master and pore water pressure force value.
Technical background
It is increasing skyscraper, underground space development project, Team roads over strait, over strait big as coastal cities are developed
The Important Projects such as bridge input is built, and the thing followed is the exploitation and construction of a large amount of coastal deep big foundation pits.Research finds that wave is made
With the pore water pressure in lower sea bed to engineering stress and the influence of deformation, the unstability of ocean buildings or structures and destruction and sea bed
Interior pore water pressure has very important association.In the presence of wave cycle load, border on the sea in deep basal pit surrounding soil
Produce the constantly pore water pressure accumulating and shake, the deformation of the fluctuation amplitude and cumulant of pore water pressure to the deep basal pit that borders on the sea
And stability has very important influence.But in the existing nearshore engineering construction design of China, only account for wave and directly transmit
To sea bed and the load of buildings or structures, and do not consider the pore water pressure in Potential of Seabed Under Wave Loading to engineering stress and deformation
Influence.This design of foundation pit that to border on the sea may tend to conservative compared with actual conditions and make it that cost of project implementation is high,
Probably due to have ignored pore pressure accumulation effect and so that there is potential safety hazard in engineering.
The content of the invention
In order to overcome the shortcomings of to have bordered on the sea on design of foundation pit, the invention provides can be to face under simulated waves load action
Sea base cheats dynamic response model experimental rig, realizes under the effect of different elements of wave, by controlling different excavation of foundation pit wide
Degree, different excavation of foundation pit depth, different barricade embedded depths and different retaining walls, breakwater spacing, study the foundation ditch master that borders on the sea
The Water And Earth Pressures response of passive side and rule.
The technical solution adopted for the present invention to solve the technical problems is：Border on the sea foundation ditch under a kind of simulated waves load action
Dynamic response model experimental rig, the device, which is placed in wave channel, to be tested, and the device includes model casing, supporting steel frame, drawn
Flow four parts in slope and measurement system；The measurement system includes miniature soil pressure cell, sensor for pore water pressure and wave height recorder；It is described
Model casing by model cabinet frame, model casing bottom plate, model casing left plate, model casing right plate, safety glass, suspension ring, retaining wall,
Breakwater and sensor fixed support composition；The model cabinet frame is welded by iron bar；The model casing bottom plate, model casing
Left plate and model casing right plate are made and are welded in model cabinet frame by iron plate；The model casing right plate and model casing
There is rectangular aperture between top；The safety glass is pasted onto in model cabinet frame by structure glue；The suspension ring are arranged on
On four angles of model cabinet frame, for lifting model casing；The retaining wall includes aluminium alloy plate, the both sides middle and lower part of aluminium alloy plate
Nylon sheet A, nylon sheet B are riveted respectively, and the top constant cross-section of aluminium alloy plate is the angle steel of L-shaped, and retaining wall is put by angle steel
Model casing frame roof is placed in, retaining wall and model casing left plate are connected by rigid support；The nylon sheet A and nylon sheet B
On be drilled with circular opening, the miniature soil pressure cell of placement in circular opening；The breakwater cross section is a right-angled trapezium, by having
Machine glass board material forms entirety by glass cement, is shelved on sea bed, and sea bed is filled by soil sample in model casing by design requirement
Form；The anti-ripple side of the shifting to an earlier date waters hangs wave height recorder；The sensor fixed support is welded to just by cylindrical elongate iron
Square sheet iron center, is positioned over the diverse location on model casing bottom plate, the sensor fixed support get on the bus it is fluted, it is recessed
Sensor for pore water pressure is disposed on groove；The supporting steel frame is welded by square steel, model casing bottom is placed on, for bolster model
Case；Installation suspension ring at screwed hole, screwed hole are drilled with the supporting steel frame；The drainage slope by slope frame, slope panel,
Two pieces of poly (methyl methacrylate) plates and damping rod composition；The slope frame is welded by iron block, iron bar；The slope panel is one
Monoblock iron plate, is welded on slope frame, with the horizontal 1:5~10 slope；The poly (methyl methacrylate) plate and slope frame riveting
Connect, be connected between two pieces of poly (methyl methacrylate) plates by connecting iron bar riveting；The damping rod is made up of damping rod main body and nylon cap,
2 centimeter length semicolumns are pruned in damping rod main body one end, for blocking poly (methyl methacrylate) plate, and the other end is connected with cylindrical nylon cap,
Wave channel is propped up, damping rod is used to stablize drainage slope, prevents drainage slope from producing shake when guiding wave；The model casing
There is rectangular aperture, the drainage slope is connected with model casing by rectangular aperture between at the top of right plate and model casing.
Further, it is provided with successively from top to bottom on the aluminium alloy plate with 2 rows 2 row as one group, totally three groups of one centimetre of depths
Hole, for assigning rigid support, can according to experiment need from different groups hole be used for simulate different bury
Depth, can also adjust the distance of retaining wall model casing left plate, the different excavation widths of simulation foundation ditch；
Further, the breakwater, which can be placed on sea bed diverse location, is used to study breakwater to retaining wall difference
Distance produce influence.
Further, it is drilled with array circular opening on the nylon sheet A and nylon sheet B.
Further, the miniature soil pressure cell and nylon sheet A and nylon sheet B consistency of thickness, miniature soil pressure cell letter
Number transmission line is drawn by the wire casing being carved with nylon sheet A and nylon sheet B, is connected to data collecting instrument and miniature soil pressure cell is supplied
On electric installation.
Further, the gap between the retaining wall and safety glass is sealed using glass cement, prevents water from passing through gap
From master end seepage flow to passive side；Aluminium alloy plate, nylon sheet A and nylon sheet B bottoms are sealed with glass cement, prevent water penetration to three
Gap between block plate, influence soil pressure cell work；Gap between the breakwater and safety glass is sealed using structure glue,
Inside preventing water on the outside of breakwater by gap penetration to breakwater.
Further, the sensor for pore water pressure outer diameter curvature is consistent with the groove curvature on sensor fixed support, passes through
Binding strap is fixed on sensor fixed support.The sensor for pore water pressure signal transmssion line is along sensor fixed support, model
Bottom plate, safety glass are sequentially connected on data collecting instrument and sensor for pore water pressure electric supply installation.
Further, the gap between the slope panel and model casing right plate and safety glass and poly (methyl methacrylate) plate
Between gap using polyester fiber film connection make transition processing.
The beneficial effects of the invention are as follows：
1st, the present invention can by adjust the different embedded depth of retaining wall, retaining wall distance model case left plate distance with
And rational excavation of foundation pit parameter under extraneous load (wave action) is unified in the distance research that retaining wall is carried apart from anti-ripple.
2nd, retaining wall of the present invention is made up of aluminium alloy plate and nylon sheet.Aluminium alloy plate provides retaining wall primary stiffness, simultaneously
Because aluminium alloy plate rigidity is larger, beneficial to the diminution of test model.Nylon sheet cavity preparation is convenient, cheap, can be according to earth-retaining
Wall difference embedded depth, designs the different embedding position of miniature soil pressure cell and the line of rabbet joint, by changing nylon sheet and non-aluminum is closed
Golden plate reduces experimental cost while experimental group number is ensured.
3rd, that soil pressure cell is embedded in into nylon sheet (thickness of slab and soil pressure cell consistency of thickness) in the present invention is interior, while by soil pressure
Power box signal transmssion line is also embedded in the line of rabbet joint of nylon back, then nylon plastic(s) plate is screwed in aluminium alloy plate
On.So processing one is that can ensure the surfacing of barricade, it is to avoid surface irregularity and the stress concentration phenomenon that occurs；Two are
The absolute rigidity at the soil pressure cell back side can be ensured.
4th, the present invention places on model casing bottom plate and the hole that quantity is not waited is placed on a series of sensor fixed supports, support
Pressure sensor, for measuring the passive side pore water pressure value of foundation ditch master under any time, and then the head line such as describes in seepage field
And streamline and study its changing rule.
Brief description of the drawings
Fig. 1 is the foundation ditch dynamic response model experimental rig front view that bordered on the sea under simulated waves load action；
Fig. 2 is model casing front view (a) and top view (b)；
Fig. 3 is drainage slope stereogram (a), front view (b) and top view (c)；
Fig. 4 is supporting steel frame front view (a), left view (b) and top view (c)；
Fig. 5 is retaining wall and rigid support front view (a) and top view (b)；
Fig. 6 is that nylon sheet A (a), nylon sheet B (b) and aluminium alloy plate (c) punch and wire casing figure；
Fig. 7 is damping rod sectional view (a), left view (b) and top view (c)；
Fig. 8 is breakwater stereogram；
Fig. 9 is sensor fixed support front view (a) and top view (b).
In figure：Model cabinet frame 1；Model casing bottom plate 2；Model casing left plate 3；Model casing right plate 4；Safety glass 5；Hang
Ring 6；Retaining wall 7；Aluminium alloy plate 7-1；Nylon sheet A7-2；Nylon sheet B7-3；Angle steel 7-4；Breakwater 8；Sensor fixed support
9；Miniature soil pressure cell 10；Sensor for pore water pressure 11；Supporting steel frame 12；Screwed hole 13；Slope frame 14；Slope panel 15；It is organic
Glass plate 16；Damping rod 17；Damping rod main body 17-1；Nylon cap 17-2；Rigid support 18；Wave height recorder 19；Connect iron bar 20.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in figure 1, the foundation ditch dynamic response model experimental rig that bordered on the sea under simulated waves load action of the present invention, including mould
Molding box, supporting steel frame 12, four parts in drainage slope and measurement system.
As shown in Fig. 2 the model casing is right by model cabinet frame 1, model casing bottom plate 2, model casing left plate 3, model casing
Side plate 4, safety glass 5, suspension ring 6, retaining wall 7, breakwater 8 and sensor fixed support 9 are constituted；The model cabinet frame 1 is by 8
Millimeters thick iron bar is welded the skeleton of whole model casing；On the right side of the model casing bottom plate 2, model casing left plate 3 and model casing
Plate 4 is made by 8 millimeters of iron plates and spot welding is connected on model casing framework 1；The capping model casing of model casing bottom plate 2 bottom surface；Model casing
Left plate 3 covers model casing left surface；The capping model casing right flank of model casing right plate 4 bottom, it is deep that its height is equal to sea bed
Degree is, it is necessary to calculate；Totally two pieces of safety glass 5, it is thick one centimetre, be pasted onto respectively with structure glue the leading flank of model cabinet frame 1 and
Trailing flank；It is made up of model cabinet frame 1, model casing bottom plate 2, model casing left plate 3, model casing right plate 4 and safety glass 5
Model casing is sealed except top surface and right flank upper opening, other parts；The suspension ring 6 are arranged on model casing by nut
On the screwed hole that 1 four angles of framework are drilled with advance, for lifting model casing；As shown in figure 5, the retaining wall 7 is by aluminium alloy plate
7-1, nylon sheet A7-2, nylon sheet B7-3 and angle steel 7-4 connect to form entirety by nut；The retaining wall 7 is held on model
The top diverse location of cabinet frame 1, for simulating the different excavation widths of foundation ditch；The aluminium alloy plate 7-1 is thick 2 centimeters；The nylon
Plate A7-2, nylon sheet B7-3 thickness and the height of miniature soil pressure cell 10 are consistent, and are 1 centimetre；As shown in fig. 6, the aluminium is closed
Golden plate 7-1 is provided with 2 rows 2 row as one group successively from top to bottom, the hole of totally three groups of one centimetre of depths, for assigning rigid support
19, it can be needed to be used to simulate different embedded depths from the hole of different groups according to experiment；The position that hole is dug
And depth can need to calculate adjustment according to experiment；Two pieces of nylon sheets are drilled with the row circular opening of 3 row 2, for disposing miniature soil
Pressure cell 10；The signal transmssion line of miniature soil pressure cell 10 is drawn by the wire casing being carved with nylon sheet A7-2 and nylon sheet B7-3
Go out, be connected on data collecting instrument and the electric supply installation of miniature soil pressure cell 10；The nylon sheet A7-2 and rigid support coincidence part
Hole is separated, for assigning rigid support；The rigid support 18 is four aluminium alloy cylinders, and diameter and length are required to
By calculating, its one end is connected by the corresponding hole dug on aluminium alloy plate 7-1 and nylon sheet A7-2 with retaining wall 7, another
End is against on model casing left plate 3；The aluminium alloy plate 7-1, nylon sheet A7-2 and nylon sheet B7-3 bottoms are entered using glass cement
Row sealing；Gap between the retaining wall 7 and safety glass 5 is sealed by lucite；As shown in figure 8, described anti-
The cross section of ripple dike 8 is a right-angled trapezium, is that 1 centimetre of methacrylate sheet forms entirety by glass cement by thickness, is shelved on sea
On bed；Gap between the breakwater 8 and safety glass 5 is sealed by lucite；The anti-ripple carries 8 front waters
Hang wave height recorder 19；The wave height recorder 19 is used to detect whether element of wave meets requirement of experiment；As shown in figure 9, the sensing
Device fixed support 9 is welded to square sheet iron center by cylindrical elongate iron, is positioned over model casing bottom diverse location, described
Sensor fixed support 9 is got on the bus fluted, and convenient placement sensor for pore water pressure 11, groove radian need to be protected with the radian of sensor for pore water pressure 11
Hold consistent, depending on position is in strict accordance with design.
As shown in figure 4, the supporting steel frame 12 is welded by square steel, model casing bottom is placed on, for bolster model
Case；The supporting steel frame, which is drilled with four screwed holes 13, to be used to install suspension ring.
As shown in figure 3, the drainage slope is by slope frame 14, slope panel 15, poly (methyl methacrylate) plate 16 and damping rod
17 compositions.The slope frame 14 is welded by 8 millimeters thick iron blocks, iron bar；The slope panel 15 is the millimeters thick of a monoblock 8
Iron plate, is welded on slope frame 14, with the horizontal 1:10 slope；The poly (methyl methacrylate) plate 16 passes through screw and slope frame
Frame 14 is riveted, and is connected between two pieces of poly (methyl methacrylate) plates by connecting the riveting of iron bar 20；The damping rod 17 is stuck in poly (methyl methacrylate) plate
Between 16 and wave channel, for stablizing drainage slope, prevent drainage slope from producing shake when guiding wave.As shown in fig. 7, institute
State damping rod 17 to be made up of damping rod main body 17-1 and nylon cap 17-2, damping rod main body 17-1 prunes 2 centimeter length semicircles in one end
Post, material is lucite, for blocking poly (methyl methacrylate) plate 16, and the other end is connected by screw with cylindrical nylon cap 17-2,
Prop up wave channel.
The measurement system includes miniature soil pressure cell 10, sensor for pore water pressure 11 and wave height recorder 20；The miniature soil pressure
Box 10 is embedded in the reserved holes of nylon sheet A and nylon sheet B, totally 12, the thickness and nylon sheet A of miniature soil pressure cell and
Nylon sheet B consistency of thickness, the signal transmssion line of miniature soil pressure cell 10 passes through wire casing reserved on nylon sheet A and nylon sheet B
Draw, be connected on data collecting instrument and the electric supply installation of miniature soil pressure cell 10, so processing ensure that soil pressure cell surface and
Retaining wall surface is flushed, so as to avoid stress concentration；The sensor for pore water pressure 11 is fixed installed in sensor using binding strap
On support 9；The side of sensor fixed support 9 is fluted, and its curvature is consistent with the curvature of sensor for pore water pressure 11；Wave height recorder 20 is hung
It is used to measure element of wave in the front of breakwater 8.
The course of work of the present invention is as follows：First, according to numbering, the sensor for pore water pressure 11 of each section is fixed on accordingly
On sensor fixed support 9, the sensor fixed support 9 of installation is laid in model bottom land according to the position of correspondence vertical section
On plate 2, by the signal transmssion line of sensor for pore water pressure 11 according to the suitable of 2-safety glass of sensor fixed support 9-model casing bottom plate 5
Sequence is directed to outside model casing；Miniature soil pressure cell 10 is placed in nylon sheet A7-2 and the corresponding holes of nylon sheet B7-3,
The miniature signal transmssion line of soil pressure cell 10 is drawn by the wire casing being carved with nylon sheet A7-2 and nylon sheet B7-3；By aluminium alloy
Plate 7-1, nylon sheet A7-2, nylon sheet B7-3 and angle steel 7-4 are connected by screw and reserved screw hole, in aluminium alloy plate 7-
1st, nylon sheet A7-2 and nylon sheet B7-3 bottoms are sealed using glass cement；Retaining wall 7 is arranged on to the position of design, in retaining wall
Rigid support 18 is assigned between 7 and model casing left plate, with glass cement by the gap sealing between retaining wall 7 and safety glass 5；
Ground is prepared using the Throwing methods of filling out under water, Throwing, which bankets, ensures about 5 centimetres of the depth of water in model casing before body, and shedding for the soil body should uniformly delay
Slowly, the soil body for completion being shed to every layer along tank axis with broom, which is uniformly pushed away, to be swept 2-3 times, reduces the closing gas of inside soil body
Bubble, when often filling 20 centimetres of soil bodys, stands 2 hours, during banketing, notes the protection to pore pressure meter；When the soil body is filled
During to hole bottom absolute altitude, the soil body stops filling inside foundation ditch；Continue to fill the soil body outside foundation ditch to sea bed height, breakwater 8 is pacified
Design attitude is placed on, the gap between breakwater 8 and safety glass 5 is sealed using glass cement；Continue to fill retaining wall 7 and anti-ripple
The soil body between dike 8 is to design height.
Supporting steel frame 12 is lifted to arrive in wave channel setting pot；Lifting model groove is placed on supporting steel frame 12；Lift drainage
Slope is interior parallel with model groove to wave channel, and transition is made in the utilization polyester fiber film connection between drainage slope and model groove
Processing；Damping rod 17 is stuck between poly (methyl methacrylate) plate 16 and wave channel；Wave height recorder 20 is hung to formulation position；By miniature soil pressure
The signal transmssion line of power box 10 and sensor for pore water pressure 11 is connected on corresponding Acquisition Instrument and electric supply installation；Finally open wave
Groove switch allows wave channel to start to make ripple, and collection is made miniature soil pressure cell 10 and sensor for pore water pressure 11 in the ripple period and spread out of each
Data.
So, one group of experiment is completed, and is more transformed Wave parameters, the embedded depth of retaining wall 7, retaining wall 7 and is arrived model groove left plate 3
Distance or the distance of breakwater 8 to retaining wall 7 repeat above step and complete all experiments.
Claims (8)
1. border on the sea foundation ditch dynamic response model experimental rig under a kind of simulated waves load action, the device is placed in wave channel
Row experiment, it is characterised in that the device includes model casing, supporting steel frame (12), four parts in drainage slope and measurement system；Institute
Stating measurement system includes miniature soil pressure cell (10), sensor for pore water pressure (11) and wave height recorder (19)；The model casing is by model casing
Framework (1), model casing bottom plate (2), model casing left plate (3), model casing right plate (4), safety glass (5), suspension ring (6), gear
Cob wall (7), breakwater (8) and sensor fixed support (9) composition；The model cabinet frame (1) is welded by iron bar；It is described
Model casing bottom plate (2), model casing left plate (3) and model casing right plate (4) are made by iron plate and are welded to model cabinet frame
(1) on；The safety glass (5) is pasted onto in model cabinet frame (1) by structure glue；The suspension ring (6) are arranged on model casing
On (1) four angle of framework；The retaining wall (7) includes aluminium alloy plate (7-1), and the both sides middle and lower part of aluminium alloy plate (7-1) is distinguished
Nylon sheet A (7-2), nylon sheet B (7-3) are riveted, the top constant cross-section of aluminium alloy plate (7-1) is the angle steel (7-4) of L-shaped,
Retaining wall (7) is held at the top of model cabinet frame (1) by angle steel (7-4), and retaining wall (7) and model casing left plate (3) pass through
Rigid support (18) is connected；Peace in circular opening, circular opening is drilled with the nylon sheet A (7-2) and nylon sheet B (7-3)
Put miniature soil pressure cell (10)；Breakwater (8) cross section is a right-angled trapezium, and glass cement shape is passed through by methacrylate sheet
It is integral, it is shelved on sea bed, sea bed is filled by design requirement in model casing by soil sample and formed；In front of the breakwater (8)
Waters suspension wave height recorder (19)；The sensor fixed support (9) is welded in square sheet iron by cylindrical elongate iron
Centre, is positioned over the diverse location on model casing bottom plate (2), and the sensor fixed support (9) is got on the bus fluted, is disposed on groove
Sensor for pore water pressure (11)；The supporting steel frame (12) is welded by square steel, is placed on model casing bottom；The supporting steel frame
(12) suspension ring are installed on top；The drainage slope by slope frame (14), slope panel (15), two pieces of poly (methyl methacrylate) plates (16) with
And damping rod (17) composition；The slope frame (14) is welded by iron block and iron bar；The slope panel (15) is one whole
Block iron plate, is welded on slope frame (14), with the horizontal 1:5~10 slope；The poly (methyl methacrylate) plate (16) and slope
Framework (14) is riveted, and is connected between two pieces of poly (methyl methacrylate) plates (16) by connecting iron bar (20) riveting；The damping rod (17) by
Damping rod main body (17-1) and nylon cap (17-2) composition, damping rod main body (17-1) one end is pruned 2 centimeter length semicolumns, is used for
Poly (methyl methacrylate) plate (16) is blocked, the other end is connected with cylindrical nylon cap (17-2), prop up wave channel, damping rod (17) is used for steady
Determine drainage slope, prevent drainage slope from producing shake when guiding wave；The model casing right plate (4) and model casing top
Between have rectangular aperture, the drainage slope is connected with model casing by rectangular aperture.
2. border on the sea foundation ditch dynamic response model experimental rig under a kind of simulated waves load action according to claim 1,
Characterized in that, be provided with successively from top to bottom on the aluminium alloy plate (7-1) with 2 rows 2 row as one group, totally three groups of one centimetre of depths
Hole, for assigning rigid support (18), needs to be used to simulate different depths of burying from the hole of different groups according to experiment
Degree, or regulation retaining wall (7) arrive the distance of model casing left plate (3), the different excavation widths of simulation foundation ditch.
3. border on the sea foundation ditch dynamic response model experimental rig under a kind of simulated waves load action according to claim 1,
Characterized in that, the breakwater (8), which can be placed on sea bed diverse location, is used to study breakwater (8) to retaining wall (7)
The influence that different distances is produced.
4. border on the sea foundation ditch dynamic response model experimental rig under a kind of simulated waves load action according to claim 1,
Characterized in that, being drilled with array circular opening on the nylon sheet A (7-2) and nylon sheet B (7-3).
5. border on the sea foundation ditch dynamic response model experimental rig under a kind of simulated waves load action according to claim 1,
Characterized in that, the miniature soil pressure cell (10) and nylon sheet A (7-2) and nylon sheet B (7-3) consistency of thickness, miniature soil
Pressure cell (10) signal transmssion line is drawn by the wire casing being carved with nylon sheet A (7-2) and nylon sheet B (7-3), is connected to data
On Acquisition Instrument and miniature soil pressure cell (10) electric supply installation.
6. border on the sea foundation ditch dynamic response model experimental rig under a kind of simulated waves load action according to claim 1,
Characterized in that, the gap between the retaining wall (7) and safety glass (5) is sealed using glass cement, prevent water from passing through gap
From master end seepage flow to passive side；Aluminium alloy plate (7-1), nylon sheet A (7-2) and nylon sheet B (7-3) bottom are close with glass cement
Envelope, prevents water penetration to the gap between three blocks of plates, influence soil pressure cell work；The breakwater (8) and safety glass (5) it
Between gap sealed using structure glue, prevent water on the outside of the breakwater by gap penetration to breakwater inside.
7. border on the sea foundation ditch dynamic response model experimental rig under a kind of simulated waves load action according to claim 1,
Characterized in that, sensor for pore water pressure (11) outer diameter curvature is consistent with the groove curvature on sensor fixed support (9), pass through
Binding strap is fixed on sensor fixed support (9)；Sensor for pore water pressure (11) signal transmssion line fixes branch along sensor
Frame (9), model casing bottom plate (2), safety glass (5) are sequentially connected to data collecting instrument and sensor for pore water pressure (11) electric supply installation
On.
8. border on the sea foundation ditch dynamic response model experimental rig under a kind of simulated waves load action according to claim 1,
Characterized in that, gap and safety glass (5) and organic glass between the slope panel (15) and model casing right plate (4)
Make transition processing using polyester fiber film connection in gap between glass plate (16).
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|---|---|---|---|---|
| CN101086494B (en) * | 2007-07-03 | 2010-05-26 | 浙江大学 | Foundation and slope engineering model test platform |
| WO2009131397A2 (en) * | 2008-04-24 | 2009-10-29 | Paik Kyu Ho | Vertical load-carrying test apparatus for piles which has a removable loading apparatus, and a vertical load-carrying test method using the same |
| CN201265164Y (en) * | 2008-09-28 | 2009-07-01 | 浙江大学 | Base pit engineering seepage failure model test apparatus |
| CN205382516U (en) * | 2016-01-29 | 2016-07-13 | 浙江大学 | Foundation ditch dynamic response model test device borders on sea under simulation wave load acts on |
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