CN206891921U - The experimental rig of simulation tunnel draining seepage state - Google Patents
The experimental rig of simulation tunnel draining seepage state Download PDFInfo
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- CN206891921U CN206891921U CN201720543538.6U CN201720543538U CN206891921U CN 206891921 U CN206891921 U CN 206891921U CN 201720543538 U CN201720543538 U CN 201720543538U CN 206891921 U CN206891921 U CN 206891921U
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Abstract
It the utility model is related to tunnel drainage engineering technology, it is desirable to provide a kind of experimental rig of simulation tunnel draining seepage state.The device includes tunnel model casing, precipitation spray system, drainage system and monitoring system；Wherein, tunnel model casing is open-topped rectangular box body, and the bottom of casing front-rear side walls is arranged with perforate, runs through through hole by what upper arcuate plate and lower raft collectively constituted simulation tunnel shape between two perforates；Housing interior volume is used to load the soil body；Discharge pipe line is fixed on through hole, and discharge pipe line is made up of oblique drainpipe, vertical collector pipe and the flexible pipe for connecting both.The utility model can intuitively under the influence of simulation difference drainage system in tunnel surrounding model Analysis of Ground-water Seepage Field situation of change, and the result of the test of seepage action of ground water state can be passed through, tunnel surrounding seepage action of ground water rule under drainage is obtained, tunnel groundwater seepage state is efficiently solved and recognizes unclear, live the problem of being not easy to monitor.
Description
Technical field
The utility model belongs to tunnel drainage engineering technology.More particularly to a kind of experiment of simulation tunnel draining seepage state
Device.
Background technology
In recent years, highway in China communication is fast-developing, and the quantity and mileage of vcehicular tunnel are continuously increased.By intricately
The influence of matter environment and hydrogeologic condition, construction and the operation process in tunnel still face many engineering disease problems at present.Its
In, the water leakage defect in tunnel is exactly the problem of a puzzlement tunnel operation and maintenance.
It is one of current important means for administering Tunnel Water Leakage to set pumping equipment in tunnel internal.Study tunnel surrounding
The changing rule of the underground water in area seepage field under the effect of different drainage measures, discloses Tunnel Engineering under different condition of raining,
The situation of change of water-carrying capacity is discharged in tunnel, can provide important evidence for the laying mode of the specific pumping equipment of actual tunnel engineering.
Because tunnel belongs to concealed work, tunnel drainage facility is typically embedded in country rock, and current technology means are difficult to realize engineering
Technical staff has to the distribution situation of tunnel surrounding seepage field at the scene to be more apparent from.In addition, though rainfall gauge can be in real time
The rainfall intensity change of tunnel near zone is monitored, but the flow of tunnel drainage measure discharge can only be by setting the side such as triangular-notch weir
Formula is estimated, the Simultaneous Monitoring of rainfall and displacement is difficult to realize, so as to obtain the phase between rainfall intensity and displacement
Pass relation.
Therefore, the utility model is solved the above problems by proposing the experimental rig of simulation tunnel draining seepage state.
Indoor model test can be by Tunnel Engineering scaled down, and by indoor test technology and method, analysis tunnel is made in draining
It is actual tunnel engineering drainage scheme with the dependency relation between the situation of change and rainfall intensity and drain discharge of lower seepage field
Selection provide reference frame.
Utility model content
The utility model main purpose is overcome the deficiencies in the prior art, there is provided a kind of simulation tunnel draining seepage state
Experimental rig.
To solve technical problem, solution of the present utility model is：
A kind of experimental rig of simulation tunnel draining seepage state, including tunnel model casing, in addition to precipitation spray are provided
Leaching system, drainage system and monitoring system；Wherein,
The tunnel model casing is open-topped rectangular box body, and the bottom of casing front-rear side walls is arranged with out
Hole, run through through hole by what upper arcuate plate and lower raft collectively constituted simulation tunnel shape between two perforates；Tunnel model
The inner space of casing be used to loading the soil body (can load the soil body with different Penetration Signatures for different tests, for example, sand,
Silt etc.)；
The precipitation spray system includes water inlet pipe and multiple equally distributed spray throwers, and spray thrower is located at the top of casing
Opening；
The drainage system includes at least one discharge pipe line being fixed on through hole, and discharge pipe line is by oblique draining
Pipe, vertical collector pipe and for connect both flexible pipe form；Wherein, oblique drainpipe and horizontal direction are in 25 ° of angles, and it is pushed up
Portion openend is fixed on the outer wall of arc, oblique can be stretched in sand；The upper semisection of oblique drainpipe is diversion
Section, its tube wall lay multiple priming holes for diversion, the outside parcel filter paper of diversion section；The lower semisection of oblique drainpipe is storage
Water section, its tube wall not perforate and bottom end closure；Perforate on vertical collector pipe partial insertion to bottom plate is to realize fixation, its top
Opening, bottom sealing and middle part set the horizontal drainage channel of horizontal direction；One end of the flexible pipe inserts oblique drainpipe until bottom
End, the other end inserts vertical collector pipe up to bottom, for realizing oblique drainpipe to vertical collector pipe draining；Oblique drainpipe
Bottom is located in same horizontal line with vertical collector pipe bottom, and the horizontal level of the water-stored section peak of oblique drainpipe will height
In the horizontal level of the horizontal drainage channel of vertical collector pipe, to prevent from stopping in drainage procedure；
The monitoring system includes computer and two turbine flowmeters；Wherein, the first turbine flowmeter is connected to precipitation
On the water inlet pipe of spray system, for monitoring precipitation flow；Second turbine flowmeter passes through outlet pipe and the water of vertical collector pipe
Flat raft water hole connects, for detecting drain discharge；Two turbine flowmeters are connected by signal wire with computer respectively.
In the utility model, the monitoring system also includes multichannel pressure-measuring pipe；One end of pressure-measuring pipe is connected to tunnel model case
The pressure tap of body bottom, pressure tap, which is sentenced filter paper and blocked, prevents sandstone from entering；The another of pressure-measuring pipe is terminated at tunnel model casing
Lateral opening hole, will not be seeped water to pressure-measuring pipe at the lateral opening hole.
In the utility model, one overflowing water hole is set on the top of tunnel model body side, the height of spillway hole is less than
The lateral opening hole of the tunnel model casing.
In the utility model, the multichannel pressure-measuring pipe is is set up in parallel, and pressure-measuring pipe is transparent hose, the case by pressure-measuring pipe
Body side surface is provided with the scale for being used for reading height of water level in pressure-measuring pipe.
In the utility model, the discharge pipe line has multiple, and the horizontal drainage channel of vertical collector pipe is equal in each discharge pipe line
Second turbine flowmeter is connected to by outlet pipe；Each two discharge pipe line is one group, is symmetricly set in running through for tunnel-shaped
Through hole both sides, arranged in spacing between every two groups of discharge pipe lines.
In the utility model, the groove parallel through the setting of the lower raft both sides of through hole of the tunnel-shaped is described
In the grooves, the vertical collector pipe is fixed in the perforate of groove for perforate on bottom plate.
In the utility model, the precipitation spray system includes the length that polylith is overlapped on tunnel model case opening at equal intervals
Bar shaped aluminium sheet, circular hole is opened up on aluminium sheet, the branch line of water inlet pipe is each passed through each circular hole, is connected to the spray being fixed on below aluminium sheet
Drench device；Or the precipitation spray system includes one block of aluminium sheet for being placed in tunnel model case opening, is opened up on aluminium sheet multiple
The circular hole being equidistantly spaced from, the branch line of water inlet pipe are each passed through each circular hole, are connected to the spray thrower being fixed on below aluminium sheet.
In the utility model, the bottom of the tunnel model case, side wall, and tunnel-shaped run through the upper arcuate of through hole
Plate and lower raft, it is transparent poly (methyl methacrylate) plate；The oblique drainpipe and vertical collector pipe are lucite tube, soft
Manage as PU flexible pipes.
In the utility model, the bottom of the tunnel model casing is provided with the steelframe for supporting box.
In the utility model, the junction of oblique drainpipe and arc outer wall, and the company of vertical collector pipe and bottom plate
The place of connecing is to be tightly connected.
The beneficial effects of the utility model are mainly manifested in：
1st, the utility model can be intuitively under the influence of simulation difference drainage system, seepage action of ground water in tunnel surrounding model
The situation of change of field, and can obtain tunnel surrounding underground water under drainage by the result of the test of seepage action of ground water state and ooze
Flow rule.Efficiently solve the problem of tunnel groundwater seepage state understanding is unclear, and scene is not easy to monitor.
2nd, the utility model can directly control precipitation flow, monitor tunnel drainage flow in real time, and can synchronously obtain
To the correlation rule between precipitation flow and drain discharge.It is difficult with displacement Monitoring Data to solve Tunnel Engineering scene rainfall monitoring
With it is synchronous the problem of.
3rd, the utility model can change the type of tunnel surrounding and the cloth setting parameter of drainage measure, simulate different tunnels and enclose
The drainage effect of rock condition and different draining layout schemes, reference frame is provided for the Water drainage system design in Practical Project.
Brief description of the drawings
Fig. 1 is the front-view schematic diagram of tunnel drainage experimental rig；
Fig. 2 is the close-up schematic view of part A in Fig. 1；
Fig. 3 is the close-up schematic view of part B in Fig. 1；
Fig. 4 is the left view schematic diagram of tunnel drainage experimental rig；
Fig. 5 is the schematic top plan view of tunnel drainage experimental rig.
In figure：First turbine flowmeter 1, aluminium sheet 2, water inlet pipe 3, spray thrower 4, pressure-measuring pipe 5, sand 6, through through hole 7, soft
Pipe 8, oblique round hole 9, oblique drainpipe 10, diversion section 11, water-stored section 12, groove 13, horizontal apopore 14, vertical collector pipe
15th, outlet pipe 16, the second turbine flowmeter 17, steelframe 18, priming hole 19, pressure tap 20.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1~5, the experimental rig of simulation tunnel draining seepage state provided by the utility model, including tunnel
Model casing, precipitation spray system, drainage system and monitoring system；Wherein,
Tunnel model casing is open-topped rectangular box body, and the bottom of casing is provided with the steelframe for supporting box,
The inner space of tunnel model casing is used to load sand 6.The bottom of casing front-rear side walls is arranged with perforate, two perforates it
Between by what upper arcuate plate and lower raft collectively constituted simulation tunnel shape run through through hole 7；Lower raft both sides set parallel
Groove 13 (section is rectangle), perforate is set in the groove 13.The bottom of tunnel model case, side wall, and tunnel-type
Shape runs through the upper arcuate plate and lower raft of through hole 7, is transparent poly (methyl methacrylate) plate, is easy to observe.
Precipitation spray system includes polylith and is overlapped on the strip aluminium sheet 2 of tunnel model case opening at equal intervals, on aluminium sheet 2
Circular hole is opened up, the branch line of water inlet pipe 3 is each passed through each circular hole, is connected to the spray thrower 4 for being fixed on the lower section of aluminium sheet 2；Or make
For another alternative, aluminium sheet 2 is a monoblock sheet material for being placed in tunnel model case opening, is opened up on aluminium sheet 2 multiple etc.
Spaced apart circular hole, the branch line of water inlet pipe 3 are each passed through each circular hole, are connected to the spray thrower 4 for being fixed on the lower section of aluminium sheet 2.
Drainage system includes multiple discharge pipe lines being fixed on through hole, and each two discharge pipe line is one group, symmetrically
Be arranged at tunnel-shaped runs through through hole both sides, is arranged between every two groups of discharge pipe lines in spacing.Each discharge pipe line is by oblique
Formed to drainpipe 10, vertical collector pipe 15 and the flexible pipe 8 for connecting both；Wherein, oblique drainpipe 10 and horizontal direction
In 25 ° of angles, its open top end is fixed on the outer wall of arc, oblique can be stretched in sand 6；Oblique drainpipe
10 upper semisection is diversion section 11, and its tube wall lays multiple priming holes 19 for diversion, the outside parcel filter paper of diversion section 11；
The lower semisection of oblique drainpipe 10 is water-stored section 12, its tube wall not perforate and bottom end closure；The vertical partial insertion of collector pipe 15 is extremely
To realize fixation, its top end opening, bottom sealing and middle part set the horizontal drainage channel of horizontal direction for perforate in groove 13
14；One end of flexible pipe 8 inserts oblique drainpipe 10 until bottom, the other end inserts vertical collector pipe 15 up to bottom, for reality
Show oblique drainpipe 10 to the vertical draining of collector pipe 15；Oblique drainpipe 10 and vertical collector pipe 15 are lucite tube, soft
Pipe 8 is PU flexible pipes.The junction of oblique drainpipe 10 and arc outer wall, and the junction of vertical collector pipe 15 and bottom plate are equal
To be tightly connected, prevent from seeping water.The oblique bottom of drainpipe 10 is located in same horizontal line with the vertical bottom of collector pipe 15, and oblique
The horizontal level of the peak of water-stored section 12 of drainpipe 10 is higher than the horizontal level of the horizontal drainage channel 14 of vertical collector pipe 15,
To prevent from stopping in drainage procedure；
Monitoring system includes computer, two turbine flowmeters and multichannel pressure-measuring pipe；Wherein, the first turbine flowmeter 1 connects
It is connected on the water inlet pipe 3 of precipitation spray system, for monitoring precipitation flow；Second turbine flowmeter 17 is by outlet pipe 16 and respectively
The horizontal drainage channel 14 of vertical collector pipe 15 connects in discharge pipe line, for detecting drain discharge；Two turbine flowmeter difference
It is connected by signal wire with computer.
Pressure-measuring pipe 5 is transparent hose, has multichannel and is set up in parallel.One end of pressure-measuring pipe 5 is connected to tunnel model bottom half
Pressure tap 20, pressure tap 20, which is sentenced filter paper and blocked, prevents sandstone from entering；Another tunnel model casing of being terminated at of pressure-measuring pipe 5
Lateral opening hole.One overflowing water hole is set on the top of body side, and the height of spillway hole is less than the side to connect with pressure-measuring pipe 5 and opened
Hole, avoid from being seeped water into pressure-measuring pipe 5 at lateral opening hole.It is provided with the body side on the side of pressure-measuring pipe 5 and is used to read water in pipe
The scale of position height.
Concrete application example：
In the present embodiment, tunnel-shaped is 30cm through the length of through hole 7, and two are symmetrical arranged at left and right sides of the bottom plate of its underpart
Bar width 2cm, depth 2cm, length 30cm cuboid groove 13, the bottom of groove 13 set symmetrical round hole two-by-two.On
The left and right sides of portion's arc symmetrically opens up oblique round hole 9, for through flexible pipe 8 and with the top end opening of oblique drainpipe 10
Docking.
Oblique drainpipe 10 is internal diameter 1cm, long 16.5cm lucite tube, its water-stored section 12 length 7cm, remainder
For diversion section 11.Vertical collector pipe 15 is internal diameter 1cm, long 4cm lucite tube, and vertical collector pipe 15 is opened in the circle of groove 13
Insertion depth in hole is 2cm.
Sand is loaded in tunnel model casing and is used as country rock model, sand is by adjusting the grain composition of sand, control hole
Than simulating the country rock with different permeability, pile up and highly locate full of tunnel model casing to 40cm.What casing right side wall was set
Spillway hole can maintain the head in case below certain height.Tunnel model bottom half has 16 equi-spaced apart arrangements
Into the pressure tap 20 of square, the top of pressure tap 20, which covers one layer of filter paper, prevents sand grains from blocking pipeline.Pressure-measuring pipe 5 is 4mm
The flexible pipe of internal diameter, can be by being attached to height of water level in the chi readout tube on the outside of left wall, so as to obtain tunnel model case during experiment
Internal actual head height.
The range ability of first turbine flowmeter 1 is 0.1m3/ h~0.6m3/ h, the range ability of the second turbine flowmeter 17
For 0.04m3/ h~0.25m3/ h, the computer are notebook computer (also optional industrial computer), and notebook computer can be remembered in real time
The data received are recorded, and generate the tendency chart that precipitation changes over time with draining instantaneous delivery.
In the utility model, experiment the data obtained can reflect the characteristics of seepage field of tunnel model and white-out water-carrying capacity it
Between rule, these test datas can obtain the hydrologic parameter of tunnel surrounding after the analysis of theoretical sum value with inverting.In addition,
Result of the test of the tunnel drainage measure under different layout schemes can provide reference frame for the engineering of reality.
Above-described is only specific embodiment of the utility model, all in this reality not to limit the utility model
With new spiritual and any modification within principle, made, equivalence replacement etc., protection model of the present utility model should be included in
Within enclosing.
Claims (10)
1. the experimental rig of simulation tunnel draining seepage state, including tunnel model casing, it is characterised in that also sprayed including precipitation
Leaching system, drainage system and monitoring system；Wherein,
The tunnel model casing is open-topped rectangular box body, and the bottoms of casing front-rear side walls is arranged with perforate, two
Run through through hole by what upper arcuate plate and lower raft collectively constituted simulation tunnel shape between individual perforate；Tunnel model casing
Inner space is used to load the soil body；
The precipitation spray system includes water inlet pipe and multiple equally distributed spray throwers, and spray thrower is located at the open top of casing
Place；
The drainage system includes at least one discharge pipe line being fixed on through hole, discharge pipe line by oblique drainpipe,
Vertical collector pipe and formed for connecting both flexible pipes；Wherein, oblique drainpipe and horizontal direction are in 25 ° of angles, its top
Openend is fixed on the outer wall of arc, oblique can be stretched in sand；The upper semisection of oblique drainpipe is diversion section,
Its tube wall lays multiple priming holes for diversion, the outside parcel filter paper of diversion section；The lower semisection of oblique drainpipe is water storage
Section, its tube wall not perforate and bottom end closure；To realize fixation, its top is opened for perforate on vertical collector pipe partial insertion to bottom plate
Mouth, bottom sealing and middle part set the horizontal drainage channel of horizontal direction；One end of the flexible pipe inserts oblique drainpipe until bottom,
The other end inserts vertical collector pipe up to bottom, for realizing oblique drainpipe to vertical collector pipe draining；Oblique drainpipe bottom
End is located in same horizontal line with vertical collector pipe bottom, and the horizontal level of the water-stored section peak of oblique drainpipe is higher than
The horizontal level of the horizontal drainage channel of vertical collector pipe, to prevent from stopping in drainage procedure；
The monitoring system includes computer and two turbine flowmeters；Wherein, the first turbine flowmeter is connected to precipitation spray
On the water inlet pipe of system, for monitoring precipitation flow；Second turbine flowmeter passes through outlet pipe and the horizontal row of vertical collector pipe
Water hole connects, for detecting drain discharge；Two turbine flowmeters are connected by signal wire with computer respectively.
2. device according to claim 1, it is characterised in that the monitoring system also includes multichannel pressure-measuring pipe；Pressure-measuring pipe
An end be connected to the pressure tap of tunnel model bottom half, pressure tap, which is sentenced filter paper and blocked, prevents sandstone from entering；Pressure-measuring pipe it is another
One end is connected to the lateral opening hole of tunnel model casing, will not be seeped water at the lateral opening hole to pressure-measuring pipe.
3. device according to claim 2, it is characterised in that one overflowing water is set on the top of tunnel model body side
Hole, the height of spillway hole are less than the lateral opening hole of the tunnel model casing.
4. device according to claim 2, it is characterised in that to be set up in parallel, pressure-measuring pipe is the multichannel pressure-measuring pipe
Bright flexible pipe, the scale for being used for reading height of water level in pressure-measuring pipe is provided with the body side by pressure-measuring pipe.
5. according to the device described in Claims 1-4 any one, it is characterised in that the discharge pipe line has multiple, each row
The horizontal drainage channel of vertical collector pipe is connected to the second turbine flowmeter by outlet pipe in water lines；Each two discharge pipe line
For one group, be symmetricly set in tunnel-shaped runs through through hole both sides, is arranged between every two groups of discharge pipe lines in spacing.
6. according to the device described in Claims 1-4 any one, it is characterised in that the tunnel-shaped runs through through hole
Lower raft both sides parallel groove is set, in the grooves, the vertical collector pipe is fixed on the perforate on the bottom plate
In the perforate of groove.
7. according to the device described in Claims 1-4 any one, it is characterised in that the precipitation spray system includes more
Block is overlapped on the strip aluminium sheet of tunnel model case opening at equal intervals, and circular hole, the branch line point of water inlet pipe are opened up on aluminium sheet
Not Chuan Guo each circular hole, be connected to the spray thrower being fixed on below aluminium sheet；Or the precipitation spray system is placed in tunnel including one piece
The aluminium sheet of road model casing opening, multiple circular holes being equidistantly spaced from is opened up on aluminium sheet, the branch line of water inlet pipe is each passed through
Each circular hole, it is connected to the spray thrower being fixed on below aluminium sheet.
8. according to the device described in Claims 1-4 any one, it is characterised in that bottom, the side of the tunnel model case
Wall, and tunnel-shaped run through the upper arcuate plate and lower raft of through hole, are transparent poly (methyl methacrylate) plate；The oblique row
Water pipe and vertical collector pipe are lucite tube, and flexible pipe is PU flexible pipes.
9. according to the device described in Claims 1-4 any one, it is characterised in that the bottom of the tunnel model casing
Provided with the steelframe for supporting box.
10. according to the device described in Claims 1-4 any one, it is characterised in that oblique drainpipe and arc outer wall
Junction, and the junction of vertical collector pipe and bottom plate is to be tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720543538.6U CN206891921U (en) | 2017-05-16 | 2017-05-16 | The experimental rig of simulation tunnel draining seepage state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720543538.6U CN206891921U (en) | 2017-05-16 | 2017-05-16 | The experimental rig of simulation tunnel draining seepage state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206891921U true CN206891921U (en) | 2018-01-16 |
Family
ID=61342377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720543538.6U Withdrawn - After Issue CN206891921U (en) | 2017-05-16 | 2017-05-16 | The experimental rig of simulation tunnel draining seepage state |
Country Status (1)
| Country | Link |
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| CN (1) | CN206891921U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421866A (en) * | 2017-05-16 | 2017-12-01 | 浙江大学 | A kind of experimental rig of simulation tunnel draining seepage state |
| CN113865843A (en) * | 2021-09-17 | 2021-12-31 | 交通运输部公路科学研究所 | Drain pipe performance test detection device and use method |
| CN116242757A (en) * | 2023-01-06 | 2023-06-09 | 中山大学 | Method and system for simulating service environment of shield tunnel by considering water effect |
-
2017
- 2017-05-16 CN CN201720543538.6U patent/CN206891921U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421866A (en) * | 2017-05-16 | 2017-12-01 | 浙江大学 | A kind of experimental rig of simulation tunnel draining seepage state |
| CN107421866B (en) * | 2017-05-16 | 2023-05-09 | 浙江大学 | Test device for simulating drainage seepage state of tunnel |
| CN113865843A (en) * | 2021-09-17 | 2021-12-31 | 交通运输部公路科学研究所 | Drain pipe performance test detection device and use method |
| CN113865843B (en) * | 2021-09-17 | 2022-06-14 | 交通运输部公路科学研究所 | Drain pipe performance test detection device and use method |
| CN116242757A (en) * | 2023-01-06 | 2023-06-09 | 中山大学 | Method and system for simulating service environment of shield tunnel by considering water effect |
| CN116242757B (en) * | 2023-01-06 | 2024-02-02 | 中山大学 | Method and system for simulating service environment of shield tunnel by considering water effect |
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