CN209117682U - Subgrade slope engineering model test box - Google Patents
Subgrade slope engineering model test box Download PDFInfo
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- CN209117682U CN209117682U CN201821699507.0U CN201821699507U CN209117682U CN 209117682 U CN209117682 U CN 209117682U CN 201821699507 U CN201821699507 U CN 201821699507U CN 209117682 U CN209117682 U CN 209117682U
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Abstract
The utility model belongs to technical field of civil engineering, is related to subgrade slope engineering modeling techniques.The utility model discloses a kind of subgrade slope engineering model test boxes, realize the research that the research for operating condition subgrade slope engineering problem of paddling and uneven settlement of foundation influence subgrade slope engineering.The subgrade slope engineering model test box of the utility model includes cabinet, and the cabinet is cuboid, and two opposite area maximum side at least one side tops of the cabinet are transparent configuration, and lower part is equipped with and draws digging structure；The digging structure of drawing is for digging out filler and leakage test case in chamber.The digging structure of drawing is arranged in two maximum side lowers of area of cabinet.The digging structure of drawing includes soil digging hole and its unloads sealing device.The model test box of the utility model, can be used for full-scale model test.Bottom setting, which is drawn digging structure and can be drawn, takes model bottom to banket, ground foundation simulation differential settlement operating condition.
Description
Technical field
The utility model belongs to technical field of civil engineering, is related to subgrade slope engineering modeling techniques, in particular to
A kind of subgrade slope engineering model test box.
Background technique
Indoor layer during similar model test is the common research method of subgrade slope engineering problem, due to the main ginseng of subjects
Number can according to research need flexible setting, protrusion to be studied a question leading factor, size than prototype reduce and save manpower with
Many advantages, such as material resources is always the method in the engineering researcies such as roadbed side slope with very important effect.
In the engineerings layer during similar model test such as current roadbed side slope, usually there are two typical cases about test model chamber
The problem of:
First, test model chamber at present generallys use the open rectangular box type structure in two sides, it is not sealed place
Reason can only be carried out without subgrade slope engineering problem experimental study under operating condition of paddling.However, frequently encountering roadbed in practical projects
The operating condition that side slope is paddled, especially flooding of rivers during flood season heavy rainfall in recent years, so that a large amount of roadbed side slopes are in water level
The operating condition of fast lifting.
Second, at present the main research model of subgrade slope engineering model test under load action the stress of engineering structure with
Problem on deformation, it is difficult to realize influence of the differential settlement of the ground foundation simulation soil body to engineering structure stress and deformation.In practice,
Foundation soil body differential settlement to the adverse effect of engineering structure be in subgrade engineering one in need of consideration it is particularly important because
Element.
Therefore, previous subgrade slope engineering model test, which cannot achieve, paddles and the operating conditions such as uneven settlement of foundation are ground
Study carefully.
In view of this, for above-mentioned two typical shortcomings, it can be to traditional subgrade slope engineering model test box
It improves, the research for operating condition subgrade slope engineering problem of paddling is realized by the sealing of model test box, by drawing modulus type
The lower part soil body carries out the research of uneven settlement of foundation influence, and chamber is made to have stronger applicability, can be widely applied to
In different types of subgrade slope engineering model test.
Utility model content
The main purpose of the utility model is to provide subgrade slope engineering model test boxes, realize operating condition roadbed side of paddling
The research that the research of slope engineering problem and uneven settlement of foundation influence subgrade slope engineering.
To achieve the goals above, according to the one aspect of specific embodiment of the present invention, a kind of roadbed is provided
Slope engineering model chamber includes cabinet, and the cabinet is cuboid, it is characterised in that:
Two opposite area maximum side at least one side tops of the cabinet are transparent configuration, and lower part, which is equipped with, draws digging knot
Structure；
The digging structure of drawing is for digging out filler and leakage test case in chamber.
Further, the digging structure of drawing is arranged in two maximum side lowers of area of cabinet.
Further, the digging structure of drawing includes soil digging hole and its unloads sealing device.
Further, the soil digging hole is rectangle soil digging hole or round soil digging hole.
Further, the removable seal device by vulcanie sealing-plug, fixation clip and is welded on cabinet
Fixing bolt and nut are constituted.
Further, the cabinet constitutes main body by the frame that fashioned iron is welded into, and inlays plate sealing therebetween and constitutes.
Further, the fashioned iron is rectangular steel pipe and/or channel steel.
Further, load counter-force bracket is provided on the crossbeam of the frame top surface.
Further, the plate material lamination is arranged, sealing strip is arranged between every layer.
Further, the transparent configuration is made of armorplate glass.
The utility model has the beneficial effects that this draw lower part soil body formula sealed transparent model test box, can be used for
Full-scale model test, thus avoid causing since model scale is too small model cannot really reflect practical roadbed side slope structure and
The problem of stress characteristic.Bottom setting, which is drawn digging structure and can be drawn, takes model bottom to banket, ground foundation simulation differential settlement operating condition.Case
The maximum side of bulk area uses transparent configuration, so that the test operation process after the completion of entirely filling process and banket is equal
With good visuality, roadbed model deformation behaviour is fully understanded convenient for intuitive.Complexity is being studied and solved to the utility model
It is of great significance in terms of practical subgrade slope engineering stress, deformation and stability problem under working condition.It is further improved
Technical solution, weld load counter-force bracket at top, can use hydraulic jack to loading at the top of model, simulate iron
The load that road or highway infrastructures and vehicle generate.Further improved technical solution, at model test box integral sealing
Sealing plate in reason and left and right side frame can be used as laterally solid when roadbed filling and compacting using the layering installation of muti-piece plate body
Deckle circle can will be filled the water and be drained into model test box after the plate body Piecemeal erection of top, and simulation roadbed side slope is paddled operating condition.
The utility model is described further with reference to the accompanying drawings and detailed description.The utility model is additional
Aspect and advantage will be set forth in part in the description, and partially will become apparent from the description below, or practical by this
Novel practice is recognized.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Specific embodiment, illustrative embodiments and their description are not constituted to the utility model not for explaining the utility model
Work as restriction.
Fig. 1 is 1 model test box overall structure diagram of embodiment；
Fig. 2 is to draw digging structure schematic diagram, in which:
Fig. 2 (a) is main view；
Fig. 2 (b) is top view；
Fig. 2 (c) is left view；
Fig. 3 is the lower part plate body schematic diagram for filling soil digging hole sealing device and left and right side frame；
Fig. 4 is installation left and right side frame upper sealing panel flow diagram；
Fig. 5 is left and right side frame upper sealing panel encapsulation process method schematic diagram；
Fig. 6 is filling roadbed side slope model schematic；
Fig. 7 is the model top-loaded schematic diagram that bankets；
Fig. 8 be roadbed side slope paddle operating condition water filling schematic diagram；
Fig. 9 is sealing device installation procedure schematic diagram；
Figure 10 is model test box under(-)chassis welding structure schematic diagram (half structure of symmetrical structure is only shown in figure),
In:
Figure 10 (a) is model test box under(-)chassis welding structure schematic diagram；
Figure 10 (b) is the 2-2 of Figure 10 (a)/Sectional view；
Figure 10 (c) is the 1-1 of Figure 10 (a)/Sectional view；
Figure 11 is model test box left and right side Welding frame structure schematic diagram, in which:
Figure 11 (a) is model test box left and right side Welding frame structure schematic diagram；
Figure 11 (b) is the 4-4 of Figure 11 (a)/Sectional view；
Figure 11 (c) is the 3-3 of Figure 11 (a)/Sectional view；
Figure 12 is model test box top frame welding structure schematic diagram (half structure of symmetrical structure is only shown in figure),
In:
Figure 12 (a) is model test box top frame welding structure schematic diagram；
Figure 12 (b) is the 6-6 of Figure 12 (a)/Sectional view；
Figure 12 (c) is the 7-7 of Figure 12 (a)/Sectional view；
Figure 12 (d) is the 5-5 of Figure 12 (a)/Sectional view；
Figure 13 is model test box front and back plate structural schematic diagram；
Figure 14 is the schematic diagram that region shown in dotted line frame 28 is amplified in Figure 13, in which:
Figure 14 (a) is the schematic diagram that region shown in dotted line frame 28 is amplified in Figure 13；
Figure 14 (b) is the 9-9 of Figure 14 (a)/Sectional view；
Figure 14 (c) is the 8-8 of Figure 14 (a)/Sectional view；
Figure 15 is monolithic sealing plate structure schematic diagram on the frame of left and right side, in which:
Figure 15 (a) is monolithic sealing plate structure schematic diagram on the frame of left and right side；
Figure 15 (b) is the 11-11 of Figure 15 (a)/Sectional view；
Figure 15 (c) is the 10-10 of Figure 15 (a)/Sectional view；
Figure 16 is the schematic diagram that region shown in dotted line frame 29 is amplified in Figure 13, in which:
Figure 16 (a) is the schematic diagram that region shown in dotted line frame 29 is amplified in Figure 13；
Figure 16 (b) is the 12-12 of Figure 16 (a)/Sectional view；
Figure 17 is the armorplate glass and its underpart steel plate sealed structural schematic diagram of model test box.
In attached drawing:
1- front-side frame；The back side 2- frame；3- armorplate glass；4- cabinet front, lower backside steel plate；5- is drawn
Native hole；6- soil digging hole sealing device；Sealing plate on the left of 7-；Sealing plate on the right side of 8-；9- reinforcing crossmember；10- loads counter-force
Bracket；11- vulcanie sealing-plug；12- fixing bolt；13- soil digging hole fixation clip；14- foundation soil；15- rubber
Item；16-body side frame side walls；The bottom of 17- body side sealed bottom plate supports；18- rubber membrane；19- handle
Hand；Monolithic plate body on 20- left and right side frame；21- stationary fixture；22- Roadbed Soil；23- roadbed top surface；24- is held
Pressing plate；25- hydraulic jack；26- water filling；27- tank floor steel plate；Position shown in 28- Figure 14；29- Figure 16 institute
The position shown；The thin steel bar of 30-；The main rectangular steel pipe of 31- box top；The front and back 32- vertically reinforces channel steel；33- cabinet bottom
Face time rectangular steel pipe；34- cabinet；The left side 35- frame；The right side 36- frame；The main rectangular steel pipe of 37- tank floor；38
The crossbeam of left and right side frame；The column of 39- left and right side frame；The front and back 40- transversely strengthening channel steel.
Specific embodiment
It should be noted that in the absence of conflict, specific embodiment, embodiment in the application and therein
Feature can be combined with each other.It lets us now refer to the figures and combines the following contents that the utility model is described in detail.
It is specific below in conjunction with the utility model in order to make those skilled in the art better understand the utility model
Attached drawing in embodiment, embodiment, to the technical solution in specific embodiment of the present invention, embodiment carry out it is clear,
Complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on specific embodiment, the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained, embodiment, all should belong to the range of the utility model protection under the premise of dynamic.
Embodiment
Chamber overall structure
This example subgrade slope engineering model test box structure as shown in Figure 1, include cabinet 34 and left and right side sealing plate 7,8,
Whole cabinet 34 is in cuboid.
The front and back of model test box is two maximum sides of area of cabinet 34.Entire model test box uses
The frame that fashioned iron is welded into constitutes main body, and transparent tempering glass is inlayed on the front-side frame 1 of model test box and the top of back side frame 2
Glass plate 3, lower weld steel plate 4.
4 soil digging holes 5 are respectively arranged in the intermediate position of the lower steel plate 4 of the front-side frame 1 and back side frame 2 of model test box
And its sealing device 6, the composition structure of filler and leakage test case in chamber, soil digging hole 5 and its sealing device 6 can be dug out
Part is as shown in Figure 2.
Sealing plate 7 and right side sealing plate 8 are assemblied to form by plurality of steel plates on the left of model test box.Model test box top
It is provided with rectangle steel tubular type reinforcing crossmember 9 and rectangle steel tubular type load counter-force bracket 10.
When progress roadbed side slope model test is banketed, first vulcanie sealing-plug 11 is placed in soil digging hole 5, with admittedly
Determine bolt 12 soil digging hole pressing plate 13 is fixed.Then, the lower part plate body of installation left side sealing plate 7 and right side sealing plate 8, makees
For the sidewise restraint boundary of foundation soil 14, as shown in Figure 3.
When roadbed side slope top surface 23 applies vertical load, hydraulic jack is placed on the bearing plate 24 placed above it
25, it is further applied load using the reaction force that load counter-force bracket 10 provides, as shown in Figure 7.
When progress roadbed side slope paddles Work condition analogue, according to process shown in Fig. 4, model test box left side frame 35 is installed
Remaining each piece of sealing plate 20 in right side frame 36, seals model test box.Then, 26 can be filled the water into model test box,
The immersion operating condition of roadbed side slope is simulated, as shown in Figure 8.
Soil digging hole and sealing device
Model test box front, the soil digging hole 5 on back side lower frame steel plate 4 and 6 structure of sealing device are as shown in Figure 2.
In the model test that research uneven settlement of foundation influences operating condition to roadbed side slope, start filled foundation soil 14 before by hard
Rubber seal plug 11 is fixed with pressing plate 13 and bolt 12；Filled foundation soil 14 and Roadbed Soil 22 after fixing seal is good,
Between by vibration is filled influenced to pay attention to that the sealing effect of observation vulcanie sealing-plug 11 passes through and reconciles pressing plate if there is loosening
Four nuts on 13 are reinforced；Pressing plate 13 and vulcanie sealing-plug 11 are removed, is dug out from soil digging hole 5 using tool
Part of the foundation soil 14；Vulcanie sealing-plug 11 and pressing plate 13 is sealed in replacement and fixation, as shown in Figure 6；And then ground can be carried out
The test dependent observation that differential settlement influences roadbed.Sealing device installation procedure is as shown in Figure 9.
The installation of side sealing plate
20 process of sealing plate on left and right side frame 35,36 is installed as shown in figure 4, first with sealed silicone by rubber strip
15 paste along the side wall 16 of left and right side frame 35,36, and rubber strip 15 chooses the rubber strip that section is rectangle, can effectively increase
Add the contact area with adhesion material, enhances sealing effect.Then, sealed silicone is smeared on rubber strip 15, selection one is complete
Whole rubber membrane 18 is covered on rubber strip 15, and sealing plate 20 is placed in sealing plate bottom support 17 and compresses rubber by holding handle 19
Glue film 18.Finally, with stationary fixture 21 along the 16 fixing seal plate 20 of side wall of left and right side frame 35,36.Encapsulation process method is shown
It is intended to as shown in Figure 5.After installing the bottom plate 20 sealing together of left and right side frame 35,36, remaining sealing plate of upper part with
This analogizes installation, it can be achieved that the whole of muti-piece sealing plate install on the frame of left and right side.Therebetween, install left and right side frame 35,
Filled foundation soil 14 and Roadbed Soil 22 in 36 sealing plate 20 and model test box, can be according to the work that bankets in practical case
The special case of industry is alternately flexibly implemented.The roadbed side slope model filled is as shown in Figure 6.
The chamber of the utility model the production method is as follows.
(1) suitable place is chosen in laboratory, according to the model test box bed-plate dimension of actual design, smooth location
And poured using the ordinary portland cement not less than No. 325, welding model is carried out after curing cycle to be achieved on the place
Test the operation of cabinet frame.
(2) two main main steel pipes 37 of rectangle are subjected to seamless welding with more rectangular steel pipes 33, paid attention to secondary rectangle steel
Pipe 33 is placed in main rectangular steel pipe 37 at regular intervals in the following, 33 both ends of secondary rectangular steel pipe are flushed with main 37 outer boundary of rectangular steel pipe
(being detailed in Figure 10), secondary 33 spacing of rectangular steel pipe distribution are as shown in Figure 10.
(3) choose four rectangular steel pipes, according to structure shown in Figure 11 arrangement welded, formed model test box a left side,
Right side frame 35,36 pays attention to putting for the long short side in rectangular steel pipe section, wherein the end section of two crossbeams 38 should be by two therebetween
The side wall of root post 40 blocks, and leaks after avoiding model test box water storage.
(4) left and right two side frames 35,36 lower parts are aligned with two main rectangular steel pipes 37 of the bottom of box and are welded
It connects, the end section of the main rectangular steel pipe 37 of two of bottom should be sealed by the side wall of the two root posts of left and right two side frames 35,36
It is stifled, it is leaked after avoiding model test box water storage.
(5) it chooses muti-piece rectangular steel plates 27 to be placed on two main rectangular steel pipes 37 of the bottom of box, along steel plate and cabinet bottom
Contact surface carries out seamless welding (as shown in Figure 10) between the main rectangular steel pipe 37 of two of portion, sends out after avoiding model test box water storage
Raw leakage.
(6) top that two main rectangular steel pipes 31 connect left and right two side frames 35,36 is chosen, main rectangular steel pipe 31
End section should block (as shown in figure 12) by the side wall of the two root posts 39 of left and right two side frames 35,36, and junction carries out nothing
Seam welding.
(7) reinforcing crossmember 9 of two rectangular steel pipes as fixed front and back frame 1,2 is chosen, two main rectangles are welded in
On steel pipe 31,9 position of reinforcing crossmember is as shown in figure 12, pays attention to putting for this two long short sides of rectangular steel pipe, makes the rectangular steel pipe
Top surface flushes with main 31 top surface of rectangular steel pipe and (is detailed in shown in Figure 12 (b)).
(8) two rectangular steel pipes are chosen as load counter-force bracket 10, are welded on two main rectangular steel pipes 31, load branch
Rack position is as shown in figure 12, pays attention to putting for two long short sides of rectangular steel pipe for loading counter-force bracket 10, makes the rectangular steel pipe
Short side is placed on main 31 top surface of rectangular steel pipe, is flushed and (is detailed in shown in Figure 12 (c)) on the outside of both ends and main rectangular steel pipe 31.
(9) strenthening member on model test box front and back frame 1,2 is with transverse channel steels 32,40 by being vertically welded,
As shown in figure 13.More channel steels are chosen in vertical strenthening member 32, be directly welded in box top and bottom surface main rectangular steel pipe 31,
On 37, transversely strengthening component 40 is welded on vertical reinforcing channel steel 32 by multistage channel steel, and specific arrangement is as shown in figure 14, figure
Demonstration is enclosed as shown in dotted line frame 28 in Figure 13.Since channel steel is different from rectangular steel pipe sectional dimension, when welding, will ensure that model tries
Tryoff inner wall is smooth, channel steel notch outwardly, as shown in Figure 14 (c), Figure 14 (b).
(10) each piece of plate body 20 of arranged on left and right sides sealing plate 7,8 is welded by steel plate and the reinforcing bar handle 19 being located at thereon
It connects, is divided into two part multistage plate bodys up and down, 20 structure of monolithic plate body is as shown in figure 15, and handle 19 is welded on outside plate body
Side, it is ensured that plate body medial surface is smooth.
(11) when installing the plate body 20 of left and right side sealing plate 7,8 upper and lower parts, with sealed silicone by rectangular section
Rubber strip 15 is pasted along model test box left and right side frame side wall 16 to be fixed, and sealed silicone is smeared on rubber strip 15, is selected
It takes a complete rubber membrane 18 to be covered on rubber strip 15, holds handle 19 for first piece of lower part sealing plate 20 and be placed in sealing plate
In support 17 and compress rubber membrane 18.Finally, with stationary fixture 21 along the side wall of model test box left and right side frame 35,36
16 fixing seal plate bodys 20.Remaining sealing plate body 20 of upper part and so on installation, is realized on left and right side frame 35,36
Whole installations of muti-piece sealing plate.Test model soak operating condition under, due to arranged on left and right sides sealing plate 7,8 lower part plate body by
To relatively large effect of water pressure, therefore, when arranging stationary fixture 21, suitably increase in arranged on left and right sides sealing plate 7,8 lower parts
It is fixed the quantity of fixture 21.
(12) in lower part (see Figure 16) welding steel 4 of model test box front and back frame 1,2, pay attention to 4 bottom end of steel plate with
Steel plate 27 at model test box bottom surface fits closely, and as shown in Figure 16 (b), carries out seamless welding.
(13) four rectangle soil diggings are respectively cut at the intermediate position of lower steel plate 4 of model test box front and back frame 1,2
Hole 5, specific arrangement as shown in figure 16, illustrate range as shown in dotted line frame 29 in Figure 13.Model is sealed before filling with vulcanie
Plug 11 blocks rectangle soil digging holes 5, is fixed in the outside of vulcanie sealing-plug 11 with keeper plate of steel 13, keeper plate of steel 13 with
It is welded in front and back frame 1, four fixing bolts 12 on the corresponding steel plate 4 in 2 lower parts carry out riveting fixation with nut.
(14) by (case in the grid vertically constituted with transverse channel steels 32,40 in model test box front and back frame 1,2
Interior side) armorplate glass 3 of corresponding size is inlayed, and carry out encapsulation process.Required tempered glass quantity is according to model test
Case length and height, which calculate, to be determined.The 4 thin steel bar of top seamless welding of lower steel plate of frame 1,2 in model test box front and back
30, width and 3 consistency of thickness of top armorplate glass avoid armorplate glass 3 and 4 upper surface of steel plate easily sliding when directly contacting
De- and generation stress raisers, cause glass breaking, as shown in figure 17.In 3 bottom surface of armorplate glass and thin 30 top surface of steel bar
The seamless closely connected connection of the two is realized using sealant.Armorplate glass 3 is fixed on front and back using hard seccotine or AB glue
By on the grid vertically constituted with transverse channel steels 32,40 in frame 1,2, it is ensured that the two is close to, and tempering is closed with sealant in outside
Gap between glass plate 3 and channel steel 32,40.Gap between adjacent two pieces of armorplate glasses 3 is filled with glass cement, is played close
Seal and prevent armorplate glass 3 from directly contacting the effect for causing stress raisers to lead to glass breaking.
Claims (10)
1. subgrade slope engineering model test box, including cabinet, the cabinet is cuboid, it is characterised in that:
Two opposite area maximum side at least one side tops of the cabinet are transparent configuration, and lower part is equipped with and draws digging structure；
The digging structure of drawing is for digging out filler and leakage test case in chamber.
2. subgrade slope engineering model test box according to claim 1, it is characterised in that:
The digging structure of drawing is arranged in two maximum side lowers of area of cabinet.
3. subgrade slope engineering model test box according to claim 1, it is characterised in that:
The digging structure of drawing includes soil digging hole and its sealing device.
4. subgrade slope engineering model test box according to claim 3, it is characterised in that:
The soil digging hole is rectangle soil digging hole or round soil digging hole.
5. subgrade slope engineering model test box according to claim 3, it is characterised in that:
The sealing device is made of vulcanie sealing-plug, fixation clip and the fixing bolt and nut being welded on cabinet.
6. subgrade slope engineering model test box according to claim 1, it is characterised in that:
The cabinet constitutes main body by the frame that fashioned iron is welded into, and inlays plate sealing therebetween and constitutes.
7. subgrade slope engineering model test box according to claim 6, it is characterised in that:
The fashioned iron is rectangular steel pipe and/or channel steel.
8. subgrade slope engineering model test box according to claim 6, it is characterised in that:
Load counter-force bracket is provided on the crossbeam of the frame top surface.
9. subgrade slope engineering model test box according to claim 6, it is characterised in that:
The plate material lamination is arranged, sealing strip is arranged between every layer.
10. subgrade slope engineering model test box according to claim 9, it is characterised in that:
The transparent configuration is made of armorplate glass.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109142685A (en) * | 2018-10-19 | 2019-01-04 | 西南交通大学 | Subgrade slope engineering model test box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109142685A (en) * | 2018-10-19 | 2019-01-04 | 西南交通大学 | Subgrade slope engineering model test box |
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