CN203629566U - Model test system for base layer sedimentation of immersed tube tunnel - Google Patents
Model test system for base layer sedimentation of immersed tube tunnel Download PDFInfo
- Publication number
- CN203629566U CN203629566U CN201320874808.3U CN201320874808U CN203629566U CN 203629566 U CN203629566 U CN 203629566U CN 201320874808 U CN201320874808 U CN 201320874808U CN 203629566 U CN203629566 U CN 203629566U
- Authority
- CN
- China
- Prior art keywords
- model
- sand
- water tank
- water
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a model test system for base layer sedimentation of an immersed tube tunnel. The model test system for the base layer sedimentation of the immersed tube tunnel comprises a model water tank, a tube section model, a gantry crane, a measuring frame, a dial indicator, a sand injecting machine, a water shut-off valve, a sand injecting tube, a cushion block and a jack, wherein the cushion block is arranged at the bottom of the model water tank, the jack is arranged on the cushion block, the tube section model is placed on the jack, the gantry crane and the measuring frame are arranged above the model water tank, the dial indicator is fixed on the measuring frame, the measuring head of the dial indicator props against the tube section model, a sand injecting hole is formed in the tube section model, the sand injecting hole is connected with the water shut-off valve, a valve is arranged on the sand injecting tube, and the sand injecting machine is connected with the water shut-off valve by virtue of the sand injecting tube. Compared with the prior art, the model test system for the base layer sedimentation of the immersed tube tunnel has the advantages and effects that structure is simple, a model test for the base layer sedimentation of the immersed tube tunnel can be completed; influence of sand water to sedimentation can be tested by injecting different sand water; influence of a back-silting layer to sedimentation can be tested by spraying back-silting solutions with different concentrations.
Description
Technical field
The utility model relates to a kind of structural model test system, particularly a kind of immersed tube tunnel basal layer deformation model test system.
Background technology
Lay under water in the process in tunnel, the method conventionally adopting is first to allow the accurate sinking of main body immersed segment casing in the foundation trench excavating in advance, the strengthening of foundation of recycling sand replacement method to immersed segment, and this method is applicable to the little building berth type pipeline section of bottom width.Due to the development of technology, model investigation about sand replacement method has also been made significant headway, wherein about emery disc propagation law and fill with the research of sand facies related parameters and all very ripe on filling with the impact research of sand about sand material proportioning, in correlation model test, also consider the impact of different operating modes, and draw relevant conclusion, the effective and feasible of sand replacement method affirmed in many research substantially, and these all provide valuable reference and foundation to design and the construction application of Practical Project.But, in the existing model test about sand replacement method, not to relating to the research to immersed tube tunnel sedimentation.Because the settlement factors of immersed tube tunnel lacks laboratory reference and the support of science, cause at present not determining very accurately its sedimentation size in the design of immersed tube tunnel, in construction, usually need, by a scope of estimating, tube coupling is carried out to certain raising in advance, cannot meet the application requirements of the immersed tube tunnel being showing improvement or progress day by day.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, can experimental enviroment parameter and the immersed tube tunnel basal layer deformation model test system of construction parameter to settlement influence.
The technical scheme in the invention for solving the above technical problem is: this immersed tube tunnel basal layer deformation model test system, it is characterized in that, comprise: model water tank, tube coupling model, transfer gantry, measurement bay, dial gauge, sand filler, water check valve, note sandpipe, cushion block and lifting jack, wherein cushion block is distributed in model water tank bottom, lifting jack is arranged on cushion block, tube coupling model is placed on lifting jack, transfer gantry and measurement bay are arranged on the top of model water tank, dial gauge is fixed on measurement bay, the measuring head of dial gauge withstands on tube coupling model, on tube coupling model, offer note sand hole, note sand hole connects water check valve, on note sandpipe, be provided with valve, sand filler connects water check valve by note sandpipe.
Model water tank described in the utility model is connected with cyclic water tank, and cyclic water tank is connected with water pump, and water pump is connected with sand filler.The water of model water tank can flow to cyclic water tank, utilizes water pump to put back to sand filler from extracting unnecessary water out in cyclic water tank;
The utility model compared with prior art, has the following advantages and effect:
1) simple in structure, can complete the model test of the basal layer sedimentation of immersed tube tunnel;
2) by injecting different sand water, can test sand water to settlement influence;
3) by spilling the variable concentrations solution that back-silts, can test the impact of layer on sedimentation of back-silting.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the partial structurtes schematic diagram of the utility model embodiment;
Fig. 3 is the dial gauge measurement point position view of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Referring to Fig. 1-Fig. 2, this immersed tube tunnel basal layer deformation model test system of the present embodiment, comprise: model water tank 1, tube coupling model 2, transfer gantry, measurement bay 4, dial gauge 5, sand filler 6, water check valve 7, note sandpipe 8, cushion block 9 and lifting jack 3, wherein cushion block 9 is distributed in model water tank 1 bottom, lifting jack 3 is arranged on cushion block 9, tube coupling model 2 is placed on lifting jack 3, transfer gantry and measurement bay 4 are arranged on the top of model water tank 1, dial gauge 5 is fixed on measurement bay 4, the measuring head of dial gauge 5 withstands on tube coupling model 2, on tube coupling model 2, offer note sand hole, note sand hole connects water check valve 7, on note sandpipe 8, be provided with valve, sand filler 6 connects water check valve 7 by note sandpipe 8.Model water tank 1 is connected with cyclic water tank 10, and cyclic water tank 10 is connected with water pump 11, and water pump 11 is connected with sand filler 6.
The method of operating of the present embodiment immersed tube tunnel basal layer deformation model test system, comprises the following steps
1) spread metalling 12 in model water tank 1 bottom, the rubble in cleaning upper four corners, model water tank 1 bottom, and place cushion block 9;
2) spill at metalling 12 surface uniforms the solution that back-silts, make the layer that back-silts of the metalling 12 upper formation in surface;
3) on cushion block 9, place lifting jack 3;
4) with transfer gantry, tube coupling model 2 is hung to lifting jack 3;
5) with lifting jack 3 jack-up tube coupling models 2, close whole water check valves 7;
6) around tube coupling model 2, use gravel mulch, make tube coupling model 2 bottoms form the space of an approximate sealing;
7) in model water tank 1, pour water, in the time that water level exceedes tube coupling model 2 bottom, stop pouring water;
8) note sandpipe 8 connects one of them water check valve 7, opens valve and the water check valve 7 of note sandpipe 8;
9) open the valve of sand filler 6 self-loopas, first carry out self-loopa, and in sand filler 6, pour a certain proportion of water and sand in the meantime;
10) close the valve of sand filler 6 self-loopas, note sand;
11), after noting sand a period of time, around tube coupling model 2 and near the position of water check valve 7, excavate rubble formation viewport;
12) treat that sand overflows viewport, first open the valve of sand filler 6 self-loopas, then close valve and the water check valve 7 of note sandpipe 8, sand filler 6 starts self-loopa;
13) note sandpipe 8 is unloaded from water check valve 7, be connected with the water check valve 7 of next one note sand hole;
14) repeat above-described step 9-13 until all to note sand hole note sand complete;
15) after note sand, clean note sandpipe 8, close the power supply of sand filler 6;
16) adjust dial gauge 5 to vertically, check that whether each dial gauge 5 is normal, record the now initial reading of dial gauge 5;
17) utilize transfer gantry that tube coupling model 2 is sling, take out lifting jack 3;
18) transfer gantry is placed on perfusion sand bedding course 13 by tube coupling model 2 and unloads power;
19) according to the load that should add and the relation of putting into the water yield, the tube coupling model 2 that discharges water, makes to pour into sand bedding course 13 and is loaded on a constant load, record dial gauge 5 readings now;
20) first 15 minutes, every 5 minutes readings, after 15 minutes every 15 minutes readings, until dial gauge 5 readings are constant; The position of dial gauge 5, as shown in circled positions in Fig. 3, is provided with 11 dial gauge 5 measurement points altogether in the present embodiment;
21) repeat above step 19,20 until be loaded on final load.Final load is arranged between 2.5kPa-4kPa.
Above content described in this instructions is only to the explanation of the utility model example.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment; only otherwise depart from the content of the utility model instructions or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (2)
1. an immersed tube tunnel basal layer deformation model test system, it is characterized in that, comprise: model water tank (1), tube coupling model (2), transfer gantry, measurement bay (4), dial gauge (5), sand filler (6), water check valve (7), note sandpipe (8), cushion block (9) and lifting jack (3), wherein cushion block (9) is distributed in model water tank (1) bottom, lifting jack (3) is arranged on cushion block (9), tube coupling model (2) is placed on lifting jack (3), transfer gantry and measurement bay (4) are arranged on the top of model water tank (1), dial gauge (5) is fixed on measurement bay (4), the measuring head of dial gauge (5) withstands on tube coupling model (2), tube coupling model offers note sand hole on (2), note sand hole connects water check valve (7), on note sandpipe (8), be provided with valve, sand filler (6) connects water check valve (7) by note sandpipe (8).
2. immersed tube tunnel basal layer deformation model test system according to claim 1, it is characterized in that: described model water tank (1) is connected with cyclic water tank (10), cyclic water tank (10) is connected with water pump (11), and water pump (11) is connected with sand filler (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874808.3U CN203629566U (en) | 2013-12-30 | 2013-12-30 | Model test system for base layer sedimentation of immersed tube tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874808.3U CN203629566U (en) | 2013-12-30 | 2013-12-30 | Model test system for base layer sedimentation of immersed tube tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629566U true CN203629566U (en) | 2014-06-04 |
Family
ID=50816032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320874808.3U Expired - Fee Related CN203629566U (en) | 2013-12-30 | 2013-12-30 | Model test system for base layer sedimentation of immersed tube tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629566U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759702A (en) * | 2013-12-30 | 2014-04-30 | 浙江大学城市学院 | Testing system for base layer sedimentation model of immersed tube tunnel and operation method of testing system |
| CN105548497A (en) * | 2016-01-25 | 2016-05-04 | 大连理工大学 | Immersed tunnel model test device for simulating hydraulic compression joint mode through rubber airbags |
| CN105649118A (en) * | 2016-01-25 | 2016-06-08 | 大连理工大学 | Pipe section model testing device simulating hydraulic power compression connection mode |
-
2013
- 2013-12-30 CN CN201320874808.3U patent/CN203629566U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759702A (en) * | 2013-12-30 | 2014-04-30 | 浙江大学城市学院 | Testing system for base layer sedimentation model of immersed tube tunnel and operation method of testing system |
| CN103759702B (en) * | 2013-12-30 | 2016-05-04 | 浙江大学城市学院 | A kind of immersed tube tunnel basal layer deformation model test system and method for operating thereof |
| CN105548497A (en) * | 2016-01-25 | 2016-05-04 | 大连理工大学 | Immersed tunnel model test device for simulating hydraulic compression joint mode through rubber airbags |
| CN105649118A (en) * | 2016-01-25 | 2016-06-08 | 大连理工大学 | Pipe section model testing device simulating hydraulic power compression connection mode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104831762B (en) | Deep basal pit artesian water precipitation dynamic monitoring system and monitoring method | |
| CN203981507U (en) | A kind of novel planar strain consolidation testing device | |
| CN102094432B (en) | Model for causing ground setting due to engineering environment effect and test method thereof | |
| CN106049557B (en) | Using the test method of the laboratory testing rig of simulation grout pile end follow-up grouting | |
| CN102912780B (en) | Sandy soil water-immersion testing method for loess collapsible deformation | |
| CN202433536U (en) | Physical model testing system for tunnel-penetrated ground crack zone | |
| CN105974088B (en) | Surface subsidence experimental rig and test method caused by a kind of water level Circularly liftable | |
| CN107436140B (en) | Settling column tester combining vacuum preloading and surcharge preloading and testing method | |
| CN203629566U (en) | Model test system for base layer sedimentation of immersed tube tunnel | |
| CN105973710A (en) | Complicated jointed rock mass hydraulic coupling field tri-axial testing system and method | |
| CN104900130B (en) | A kind of Foundation Pit Pouring demonstrator and its Foundation Pit Pouring experiment research | |
| CN104569341A (en) | Vacuum preloading and electroosmosis combined testing device and vacuum preloading and electroosmosis combined testing method | |
| CN204125898U (en) | The experimental rig of Dam Foundation Seepage under a kind of failure under earthquake action | |
| CN106400689A (en) | Sealed water bag prepressing construction technology | |
| CN103091471B (en) | A kind of model accelerating rinse fill consolidation and test method thereof | |
| CN104020092B (en) | One kind consolidation pore water pressure combined test device and method | |
| CN206470116U (en) | A kind of experimental rig for simulating the lower basement bottom board stress of artesian water effect | |
| CN203821294U (en) | Model test device for simulating reservoir earth dam seepage damage developing process | |
| CN103759702B (en) | A kind of immersed tube tunnel basal layer deformation model test system and method for operating thereof | |
| CN209745771U (en) | Be used for on-spot monocycle infiltration test device | |
| CN204301779U (en) | A kind of indoor deep hole grouting multi-parameter combined measuring instrument | |
| CN201649138U (en) | Negative friction resistance testing device of cast-in-place concrete pile in self weight collapse loess | |
| CN204374042U (en) | A kind of constant head apparatus for measuring permeability coefficient | |
| CN114151041B (en) | Weak-cementing hydrate reservoir simulated wellbore construction device and method | |
| CN205742300U (en) | Immersed tube tunnel basis fills sand equal proportion model test platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20171230 |