CN207396068U - A kind of geomechanics model experimental provision of rock slope with along layer near cut stability - Google Patents
A kind of geomechanics model experimental provision of rock slope with along layer near cut stability Download PDFInfo
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- CN207396068U CN207396068U CN201721464671.9U CN201721464671U CN207396068U CN 207396068 U CN207396068 U CN 207396068U CN 201721464671 U CN201721464671 U CN 201721464671U CN 207396068 U CN207396068 U CN 207396068U
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Abstract
The utility model is a kind of geomechanics model experimental provision of rock slope with along layer near cut stability.It include main frame, support feet, sliding slot, jack, main frame by（It is multiple）Component, reinforcing plate, flanged plate and baffle composition, the component includes cross member and longitudinal member, it is connected between component using reinforcing plate with flanged plate, support feet is located at main frame lower member both sides, sliding slot includes horizontal concrete chute and the vertical chute, horizontal concrete chute and the vertical chute are located at upside and left and right sides inside main frame respectively, and jack includes horizontal jack and vertical jack, level jack and vertical jack are respectively placed in the vertical chute and horizontal concrete chute.The geomechanical model test of rock slope with along layer near cut stability is carried out using the device.Limiting Level load, limit vertical load and Limiting Level and the vertical load combination that rock slope with along layer near cut can be born can be obtained.
Description
Technical field
The utility model belongs to rock-soil mechanics experimental technique field, and in particular to a kind of ground of rock slope with along layer near cut stability
Matter mechanical model experimental provision, suitable for considering horizontal loading, Vertical Load and the horizontally and vertically rock of Combined Loads
Matter stability of slope Journal of Sex Research.
Background technology
With the implementation of the fast development of economic construction of China, particularly strategy to develop western regions, Southwest Mountainous Areas is public at a high speed
Road, railway and bridge construction are quickly grown.Engineering activity persistently increases, and the suffered disturbance of geological environment is more and more stronger, and come down calamity
The frequency that evil especially major landslip disaster occurs is higher and higher, and caused economic loss and casualties also continues to increase.
Compared with soil-slope, rock side slope since inside is there are no-continuous discontinuities such as substantial amounts of joint, cracks, failure mode and
Mechanism obtains extensive concern.Concordant rock landslip is not only the most important failure mode of rock side slope and China's history occurs
Major landslip in accounting example maximum Landslides, controlling sliding surface is most commonly seen with weak intercalated layer.
Popularity that concordant rock landslip is developed in China and its cause calamity seriousness determine concordant rock landslip into
Because mechanism study increasingly becomes research hotspot, particularly with it is common by single soft layer control under rock slope with along layer near cut,
The deformation of rock mass, failure mechanism and the research of unstability mechanism of Evolution are very few under its abutment load and earthquake load.In the prior art
It is not yet disclosed for the geomechanical model test under load effect outside rock slope with along layer near cut.
The content of the invention
In view of the problems of the existing technology and situation, the purpose of this utility model are to be the provision of one kind for testing
The geomechanical model test device of rock slope with along layer near cut stability, the device can be geomechanics model apply horizontal loading,
Vertical Load and horizontally and vertically combine load, simple in structure, easy to use, detachability is strong.
In order to realize above-mentioned purpose, the utility model uses following technical scheme：
A kind of geomechanical model test device for being used to test rock slope with along layer near cut stability,
It includes main frame, support feet, sliding slot, jack, and the component in main frame is connected with support feet, sliding slot and main frame
The member connecting plate of frame is connected, and main frame is made of horizontal and vertical component, reinforcing plate, flanged plate and baffle, wherein component by
I-steel and connecting plate are formed, and are connected between component using reinforcing plate with flanged plate, and reinforcing plate is connected with connecting plate, flanged plate point
It is not connected with I-steel, connecting plate, the flanged plate between two components is connected by screw bolts, and support feet is located at main frame lower part structure
Part both sides, sliding slot are made of horizontal concrete chute and the vertical chute, and horizontal concrete chute and the vertical chute are upper inside main frame respectively
Side and left and right sides, jack are made of level jack and vertical jack, and level jack and vertical jack are placed respectively
In the vertical chute and horizontal concrete chute.
Multiple cross members and longitudinal member quantity are 8-12.
Multiple reinforcing plate quantity are 4-6.
Multiple flanged plate quantity are 8-12.
The baffle number is 4.
The support feet quantity is 4.
Using the geomechanics model experimental method of the rock slope with along layer near cut stability of the device, step is：
(1) according to the construction situation of rock side slope of engineering project position and the likelihood ratio of indoor model test, by group
Into all kinds of structures and structural plane of side slope（Or weak intercalated layer）Analog simulation is carried out, prepares the physics of satisfaction and leiomyoma cells
All kinds of structures similar with mechanical property and structural plane（Or weak intercalated layer）Cast material；
（2）According to the simulation context and lineament of rock side slope, by ready all kinds of structures and structural plane（It is or soft
Weak interlayer）Cast material successively built by laying bricks or stones in the geomechanical model test device, until complete side slope model
Making；The slopes include overlying rock, structural plane or weak intercalated layer, horizon d, are structural plane or weakness in the middle part of slopes
Interlayer, lower part are horizon ds, and top is overlying rock, structural plane or the multigroup monitoring sensor of weak intercalated layer arranged on both sides, structure
Face or weak intercalated layer are connected respectively with horizon d, overlying rock, and horizon d is connected respectively with slopes, structural plane, overlying rock point
It is not connected with structural plane or weak intercalated layer, platform, is monitored in overlying rock and structural plane or weak intercalated layer equipped with arranged on both sides
Sensor, the strain and stress of structural plane or weak intercalated layer changes during monitoring test；
（3）After everything in readiness, you can the hydraulic jack in experimental rig is supplied by stability hydraulic system
Oil applies horizontally and vertically load, during experiment, using data acquisition system by the jacking of hydraulic jack to model
System records stress, the strain data of weak intercalated layer top and the bottom in time, and observes and records side slope simultaneously using continuous shooting camera and integrally break
Bad form and destructive process are tested until side slope overall collapse, are finally carried out according to test data Slope Stability comprehensive
Close evaluation.
Multigroup monitoring number of sensors is 4-10 groups, and monitoring sensor includes foil gauge and pressure cell.
The platform is that slope table is cut according to actual landform, and is built by laying bricks or stones in the position of vertical actual loading effect
Platform.
The utility model compared with prior art, has the following advantages and beneficial effect：
The rock slope with along layer near cut stability carried out with the experimental provision of the rock slope with along layer near cut stability of the utility model
Experimental method, the rock slope with along layer near cut that can measure horizontal loading, Vertical Load and horizontally and vertically Combined Loads are steady
Qualitative and failure mechanism；Can be able to be that geomechanics model applies horizontal loading, Vertical Load and level and erects according to experiment
Direct connection closes load, is further applied load to geomechanics model in border any position, ingenious in design simple in structure, easy to use,
Detachability is strong.The experimental method can also obtain the Limiting Level load that rock slope with along layer near cut can bear, limit vertical load and
Limiting Level and vertical load combination.
Description of the drawings
Fig. 1 is the geomechanics model experimental provision structure diagram of the rock slope with along layer near cut stability of the utility model
（Front view）.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is element cross-section schematic diagram in Fig. 1.
Fig. 4 is the experimental model slopes schematic diagram of the utility model.
Fig. 5 is that model test slopes schematic diagram is placed in the geomechanics model experimental provision structure of the utility model.
Wherein：1- main frames, 1-1- components, 1-1-1- I-steel, 1-1-2- connecting plates, 1-2- reinforcing plates, 1-
3- flanged plates, 1-4- baffles, 2- support feets, 3- sliding slots, 3-1- horizontal concrete chutes, 3-2- the vertical chutes, 4- jack
（Commonly）, 4-1- transverse directions jack, the vertical jack of 4-2-, 5- indoor models slopes, 6- overlying rocks, 7- structural planes
（Or weak intercalated layer）, 8- horizon ds, 9- monitoring sensor（BX120-50AA strain ga(u)ges, BW-0.5 type soil pressure cells）、
10- platforms.
Specific embodiment
The following example is merely to illustrate the utility model, and should not be regarded as limiting the scope of the utility model.Embodiment
In particular technique or condition person is not specified, according to the described technology of document in the art or condition or according to the description of product
Book carries out.Production firm person is not specified in instrument, and being can be by buying the conventional products obtained.
Embodiment 1：
According to Fig. 1-2, a kind of geomechanical model test device for testing rock slope with along layer near cut stability,
It includes main frame 1, support feet 2, sliding slot 3, jack 4, and the component 1-1 in main frame 1 is connected with support feet 2,
Sliding slot 3 is connected with the component 1-1 connecting plates 1-1-2 of main frame 1, main frame 1 by horizontal and vertical component 1-1, reinforcing plate 1-2,
Flanged plate 1-3 and baffle 1-4 is formed, and wherein component 1-1 is made of I-steel 1-1-1 and connecting plate 1-1-2, between component 1-1
Connected using reinforcing plate 1-2 with flanged plate 1-3, reinforcing plate 1-2 is connected with connecting plate 1-1-2, flanged plate 1-3 respectively with I-steel
1-1-1, connecting plate 1-1-2 are connected, and the flanged plate between two components is connected by screw bolts, and support feet 2 is located at 1 lower part of main frame
Component 1-1 both sides, sliding slot 3 are made of horizontal concrete chute 3-1 and the vertical chute 3-2, horizontal concrete chute 3-1 and the vertical chute 3-2 difference
Upside and left and right sides inside main frame 1, jack 4 are made of level jack 4-1 and vertical jack 4-2, horizontal
Jack 4-1 and vertical jack 4-2 are respectively placed in the vertical chute 3-1 and horizontal concrete chute 3-2.
Multiple horizontal and vertical component 1-1 quantity are 8-12.
Multiple reinforcing plate 1-2 quantity are 4-6.
Multiple flanged plate 1-3 quantity are 8-12.
The baffle 1-4 quantity is 4.
2 quantity of support feet is 4.
As shown in Figure 4,5, the method carried out with the geomechanics model experimental provision of rock slope with along layer near cut stability is as follows：
（1）It, will according to the construction situation of the rock side slope of engineering project position and the likelihood ratio of indoor model test
Form all kinds of structures and structural plane of side slope（Or weak intercalated layer）Analog simulation is carried out, prepares the object of satisfaction and leiomyoma cells
The reason all kinds of structures and structural plane similar with mechanical property（Or weak intercalated layer）Cast material；
（2）According to the simulation context and lineament of rock side slope, by ready all kinds of structures and structural plane（It is or soft
Weak interlayer）7 cast material is successively built by laying bricks or stones in 1 lower part of main frame in the geomechanical model test device, directly
To the making for completing side slope model, slopes 5 are formed.The slopes 5 are multilayered structures, and slopes 5 include overlying rock 6, structure
Face（Or weak intercalated layer）7th, horizon d 8,5 middle part of slopes is structural plane（Or weak intercalated layer）7, lower part is horizon d 8, on top is
Rock stratum 6.Structural plane（Or weak intercalated layer）The multigroup monitoring sensor 9 of 7 arranged on both sides.Structural plane（Or weak intercalated layer）7 respectively with
Horizon d 8, overlying rock 6 be connected, horizon d 8 respectively with slopes 5, structural plane（Or weak intercalated layer）7 are connected, and overlying rock 6 divides
Not and structural plane（Or weak intercalated layer）7th, platform 10 is connected, in overlying rock 6 and structural plane（Or weak intercalated layer）Both sides are housed in 7
Arrange multigroup monitoring sensor 9.The multigroup monitoring sensor 9 of the arranged on both sides has 5 groups, monitoring sensor include foil gauge and
Pressure cell（BX120-50AA strain ga(u)ges, BW-0.5 type soil pressure cells）.
The platform 10 is that slope table is cut according to actual landform, and is built in the position of vertical actual loading effect
The platform built.
(3) after everything in readiness, you can the hydraulic jack in experimental rig is supplied by stability hydraulic system
Oil applies horizontally and vertically load, during experiment, using data acquisition system by the jacking of hydraulic jack to model
System records stress, the strain data of weak intercalated layer top and the bottom in time, and observes and records side slope simultaneously using continuous shooting camera and integrally break
Bad form and destructive process are tested until side slope overall collapse, are finally carried out according to test data Slope Stability comprehensive
Close evaluation.
Example：
1st, the rock slope with along layer near cut stability analysis containing weak intercalated layer under vertical uniform load q：
Certain abutment rock side slope, field geology prospecting show that the weak intercalated layer of a connectivity is contained in Main Pier of Bridges lower part,
Analyze stability influence of the increase to rock side slope of vertical load.It is analyzed according to the inspection of the scene of a crime and covered court, determines interior
The geometric similarity ratio of model test uses iron powder for 200. overlying rocks 10 and horizon d 12：Huge sum of money mountain flour：Water：Cement=
30：10：3.5：1.4 proportional arrangement, weak intercalated layer are simulated using teflon material.The physical dimension of indoor model is
4.5m（Length）×2.25m（Highly）×0.4m（Highly）, platform size 0.2m × 0.3m.
Building by laying bricks or stones for above and below model rock stratum is carried out using the method for making prefabricated test block at 1 lower part of main frame, wherein soft
Weak interlayer is simulated using teflon material.Place after modelling is good in slope table vertical uniform load q is laid with platform.It will
Level jack 4-1 is moved at platform, is loaded using hydraulic way, log-on data acquisition system and continuous shooting camera.With
Relative deformation occurs for the increase of top of the slope load, the in vivo weak intercalated layer both sides rock mass in slope.
2nd, the rock slope with along layer near cut stability analysis containing weak intercalated layer under horizontal loads
Analysis is carried out using the engineering background of embodiment one.Using the method for making prefabricated test block at 1 lower part of main frame
It is built by laying bricks or stones rock stratum up and down to carry out model, wherein weak intercalated layer is simulated using teflon material.On slope after modelling is good
The place of table vertical uniform load q is laid with platform.Vertical jack 4-2 is moved into rock mass more than weak intercalated layer, using hydraulic pressure side
Formula is loaded by jack, log-on data acquisition system and continuous shooting camera.With the increase of horizontal loading, slope is in vivo soft
Relative deformation occurs for weak interlayer top rock mass.
Above-mentioned specific embodiment is used for illustrating the utility model rather than limiting the utility model,
In the spirit and scope of the claims of the utility model, to any modifications and changes that the utility model is made, all fall
Enter the scope of protection of the utility model.
Claims (5)
1. a kind of geomechanics model experimental provision of rock slope with along layer near cut stability, it is characterised in that：It includes main frame
（1）, support feet（2）, sliding slot（3）, jack（4）, main frame（1）In component（1-1）And support feet（2）It is connected, sliding slot（3）
With main frame（1）Component（1-1）Connecting plate（1-1-2）It is connected, main frame（1）By horizontal and vertical component（1-1）, strengthen
Plate（1-2）, flanged plate（1-3）And baffle（1-4）It forms, wherein component（1-1）By I-steel（1-1-1）And connecting plate（1-
1-2）It forms, component（1-1）Between use reinforcing plate（1-2）And flanged plate（1-3）Connection, reinforcing plate（1-2）With connecting plate（1-
1-2）It is connected, flanged plate（1-3）Respectively with I-steel（1-1-1）, connecting plate（1-1-2）It is connected, the flange between two components
Plate is connected by screw bolts, support feet（2）Positioned at main frame（1）Lower member（1-1）Both sides, sliding slot（3）By horizontal concrete chute（3-1）
And the vertical chute（3-2）It forms, horizontal concrete chute（3-1）And the vertical chute（3-2）It is located at main frame respectively（1）Internal upside and
Left and right sides, jack（4）By level jack（4-1）With vertical jack（4-2）It forms, level jack（4-1）With it is vertical
Jack（4-2）It is respectively placed in the vertical chute（3-1）And horizontal concrete chute（3-2）In.
2. the geomechanics model experimental provision of rock slope with along layer near cut stability according to claim 1, it is characterised in that：
The horizontal and vertical component（1-1）Quantity is 8-12.
3. the geomechanics model experimental provision of rock slope with along layer near cut stability according to claim 1, it is characterised in that：
The reinforcing plate（1-2）Quantity is 4-6.
4. the geomechanics model experimental provision of rock slope with along layer near cut stability according to claim 1, it is characterised in that：
The flanged plate（1-3）Quantity is 8-12.
5. the geomechanics model experimental provision of rock slope with along layer near cut stability according to claim 1, it is characterised in that：
The baffle（1-4）Quantity is 4, support feet（2）Quantity is 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721464671.9U CN207396068U (en) | 2017-11-06 | 2017-11-06 | A kind of geomechanics model experimental provision of rock slope with along layer near cut stability |
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| CN201721464671.9U CN207396068U (en) | 2017-11-06 | 2017-11-06 | A kind of geomechanics model experimental provision of rock slope with along layer near cut stability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727424A (en) * | 2017-11-06 | 2018-02-23 | 云南省交通规划设计研究院 | The geomechanics model experimental provision and method of a kind of rock slope with along layer near cut stability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727424A (en) * | 2017-11-06 | 2018-02-23 | 云南省交通规划设计研究院 | The geomechanics model experimental provision and method of a kind of rock slope with along layer near cut stability |
| CN107727424B (en) * | 2017-11-06 | 2023-09-26 | 云南省交通规划设计研究院 | Geomechanical model experimental device and method for stability of bedding rock slope |
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| CP01 | Change in the name or title of a patent holder |
Address after: No. 9, Shijia lane, Tuo Dong Road, Kunming, Yunnan Patentee after: Yunnan Transportation Planning & Design Research Institute Co., Ltd. Address before: No. 9, Shijia lane, Tuo Dong Road, Kunming, Yunnan Patentee before: Broadvision Engineering Consultants |
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