CN105931536A - Miniature constant resistance large-deformation anchor cable and constant resistance device thereof and monitoring system - Google Patents
Miniature constant resistance large-deformation anchor cable and constant resistance device thereof and monitoring system Download PDFInfo
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- CN105931536A CN105931536A CN201610274458.5A CN201610274458A CN105931536A CN 105931536 A CN105931536 A CN 105931536A CN 201610274458 A CN201610274458 A CN 201610274458A CN 105931536 A CN105931536 A CN 105931536A
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- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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Abstract
The invention discloses a miniature constant resistance large-deformation anchor cable and a constant resistance device thereof and a monitoring system. The constant resistance device comprises a sleeve pipe and a constant resistance body for connecting with a cable. The constant resistance device also comprises a lining and adjusters. The lining is arranged in the sleeve pipe, and one end of the inner wall of the lining is provided with a wedge-shape portion. An outer-end opening of the inner wall of the wedge-shape portion is larger than an inner-end opening. The constant resistance body is arranged at the inner side of the lining. The adjusters are arranged in the circumference direction of the constant resistance body, and the adjusters are positioned in the constant resistance body in a telescopic manner; the adjusters are abutted against the inner wall of the wedge-shape portion; the one, away from the adjusters, of the constant resistance body is connected with the cable; and constant resistance is adjusted by adjusting the telescopic length of each adjuster. The strength of each adjuster is larger than that of the lining, so that when the constant resistance body moves in the lining, the shape of the constant resistance body is unchanged, while the lining has plastic deformation to generate constant resistance. The constant resistance device is simple in structure and convening to use, and can adjust the constant resistance quickly and conveniently to adapt to different experiment environments.
Description
Technical field
This invention relates generally to a kind of small-sized constant resistance and large deformation anchor cable, little in particular to one
Type constant resistance and large deformation anchor cable and constant-resistance device thereof and monitoring system.
Background technology
Use the physical phenomenon on Landslide Model experimentation landslide at present, can help emphatically to solve landslide work
The theory and practice problem of Cheng Xuezhong.It can the overall process of the development of landslide being difficult in the wild observe,
Repeat analog information out the most in a short time.When landslide enters quick sliding, closing on observation has danger
Dangerous, and the deformation failure within gliding mass is also difficult to observation, uses Landslide Model experiment the most permissible
Effectively it is observed, so Landslide Model experiment is that research on landslide must indispensable means.Vegetarian rattan enlightening
The data statistic analysis recorded is tested in filial piety (Japan's sixties) by substantial amounts of Landslide Model, it is proposed that with
Rate of deformation is foundation, makees the forecast of landslide time of origin by secondary, three creep curves and empirical equation
It is successful.Afterwards, also obtain treated useful result in other countries and area this kind of method of application.Institute
With, Landslide Model tests the fundamental research for landslide engineering and applied research, particularly to cunning
The research of the various failure mechanisms on slope, the most very important.
Past in the research of process of landslides, to gliding mass internal modification destroy research, mainly pass through earth's surface
Displacement monitoring and the monitoring of deep anchor cable, found that application tradition prestress anchorage cable served as mechanics transmitting device later
Gliding mass internal modification is measured existing defects, such as the sliding force on sliding surface and fault plane exceedes pre-
During stress anchorage cable materials intensity, it may occur that anchor rope breakage, mechanical signal transmission system destruction, whole monitoring
The accident of thrashing, it is impossible to landslide overall process is continuously monitored.Have been developed for before applicant
Constant resistance and large deformation cable that field engineering is special and constant-resistance device thereof, and successful Application at the scene, but
Owing to its build is huge, heavier mass, it is not suitable with indoor physical model experiment demand the most completely.
It is only used for strengthening the reason of the background to the present invention in information above-mentioned disclosed in described background section
Solving, therefore it can include not constituting the information to prior art known to persons of ordinary skill in the art.
Summary of the invention
Introducing the concept of a series of reduced form in Summary, this will be in detailed description of the invention
Part further describes.Present invention part is not meant to attempt to limit required guarantor
The key feature of the technical scheme protected and essential features, more do not mean that attempt to determine claimed
The protection domain of technical scheme.
One main purpose of the present invention is to overcome at least one defect of above-mentioned prior art, it is provided that one
It is applicable to the small-sized constant resistance and large deformation anchor cable of indoor physical model experiment.
Another main purpose of the present invention is to overcome at least one defect of above-mentioned prior art, it is provided that
A kind of constant-resistance device of the small-sized constant resistance and large deformation anchor cable with large deformation characteristic.
For achieving the above object, the present invention adopts the following technical scheme that
According to an aspect of the invention, it is provided the constant-resistance device of a kind of small-sized constant resistance and large deformation anchor cable,
Including sleeve pipe with for connecting the constant-resistance body of cable, and a liner and actuator；Described liner is assembled in
In described sleeve pipe, and one end of described liner inwall is provided with wedge-shaped part, outside described wedge-shaped part inwall
End opening is more than interior end opening, and described constant-resistance body is assemblied in inside described liner；Institute is located at by described actuator
State constant-resistance body week side to, and described actuator is telescopic is positioned described constant-resistance body, with described tune
Joint device abuts described wedge-shaped part inwall, and described constant-resistance body connects cable in the one end away from described actuator,
Constant-resistance is regulated by adjusting the collapsing length of described actuator；The intensity of described actuator is more than described
The intensity of liner during so that described constant-resistance body moves in described liner, described actuator shape invariance and
Described liner generation plastic deformation and produce constant-resistance.
According to an embodiment of the present invention, wherein there is one end of described wedge-shaped part, institute at described liner
The outer wall stating liner is also convexly equipped with stopper section, and described stopper section is pressed against on described sleeve pipe end face.
According to an embodiment of the present invention, wherein said actuator includes sharp portion and regulation portion, institute
State sharp portion to be resisted against on the inwall of described liner；Described regulation portion is telescopic is positioned described constant-resistance body
On.
According to an embodiment of the present invention, wherein said actuator uses the mode that internal and external threads coordinates,
Telescopic it is positioned on described constant-resistance body.
According to an embodiment of the present invention, the top of wherein said constant-resistance body is provided with connecting portion, described cable
Rope is fixedly connected on described connecting portion.
According to an embodiment of the present invention, wherein said actuator is multiple, is distributed in described uniformly
All sides of constant-resistance body to.
According to an embodiment of the present invention, the material of wherein said liner is duroplasts.
According to an embodiment of the present invention, wherein said sleeve pipe and constant-resistance body are metal material, and
Described sleeve pipe and constant-resistance bluk recombination have anti-corrosion material.
According to a further aspect in the invention, it is provided that a kind of small-sized constant resistance and large deformation anchor cable, including anchorage and cable
Rope, also includes that constant-resistance device, described constant-resistance device include sleeve pipe and for connecting the constant-resistance body of cable, and
And also include a liner and actuator；
Described liner is assembled in described sleeve pipe, and one end of described liner inwall is provided with wedge-shaped part,
The outer end opening of described wedge-shaped part inwall is more than interior end opening, and described constant-resistance body is assemblied in inside described liner；
Described actuator be located at described constant-resistance body week side to, and described actuator is telescopic is positioned
Described constant-resistance body, abuts described wedge-shaped part inwall with described actuator, and described constant-resistance body is away from described tune
One end of joint device connects cable, regulates constant-resistance by adjusting the collapsing length of described actuator；
The intensity of described actuator is more than the intensity of described liner, so that described constant-resistance body is in described liner
Time mobile, described actuator shape invariance and described liner generation plastic deformation and produce constant-resistance；
The lower end of described cable is fixed on described constant-resistance body.
According to a further aspect in the invention, a kind of small-sized constant resistance and large deformation anchor cable monitoring system, including as above
Described small-sized constant resistance and large deformation anchor cable, also includes a mechanics sensor, data acquisition equipment and information
Processing terminal；Described mechanics sensor connects described cable, and the change that will detect by described anchorage
Graphic data sends to data acquisition equipment；The deformation data collected is sent extremely by described data acquisition equipment
The information processing terminal, deformation data is processed and analyzes by the described information processing terminal, it is achieved sliding to slip mass
The real-time monitoring of power.
As shown from the above technical solution, the one of the present invention small-sized constant resistance and large deformation anchor cable and constant-resistance device thereof,
The advantage of monitoring system and having the active effect that
The small-sized constant resistance and large deformation anchor cable of present invention offer and constant-resistance device thereof, owing to it uses miniaturization to set
Meter so that it is be more applicable for indoor physical model experiment, owing to having large deformation characteristic, draw and constantly make
It can solve the problem that insurmountable problem in prior art, then for experimentation that landslide engineering is special
Lay the foundation；Owing to it is provided with constant-resistance body, so that the present invention has the characteristic of large deformation, effectively
Reduce the probability of anchor rope breakage, thus can effectively avoid mechanical signal to transmit system destruction, whole monitoring
The accident of thrashing；It is provided with actuator on constant-resistance body, the constant-resistance of the present invention can be made to have wider
Scope, and the adjustment of constant-resistance is the most convenient, and due to constant-resistance wider range, can make
The present invention has the wide scope of application.
On the other hand the small-sized constant resistance and large deformation anchor cable monitoring system of the present invention, is that the landslide of complete set is complete
Process chamber physical simulation experiment deep mechanical quantity data acquisition unit, owing to having the merit of opposing large deformation
Can, it can be by the deformation data automatic filter monitored and drafting curve, it is achieved that slide slip mass
The real-time monitoring of power.It is achieved that to the landslide monitoring of overall process and early warning, can be prevented effectively from when draw
When power is more than the yield strength of cable, it is susceptible to the phenomenon of fracture.
Accompanying drawing explanation
By being considered in conjunction with the accompanying following the following detailed description of the embodiment of the present invention, the present invention's is each
Plant target, feature and advantage will become apparent from.Accompanying drawing is only the exemplary diagram of the present invention,
It is not necessarily drawn to scale.In the accompanying drawings, same reference represents same or similar all the time
Parts.Wherein:
Fig. 1 is the constant-resistance dress according to a kind of small-sized constant resistance and large deformation anchor cable shown in an illustrative embodiments
The schematic front view put.
Fig. 2 is the constant-resistance dress according to a kind of small-sized constant resistance and large deformation anchor cable shown in an illustrative embodiments
The elevational schematic view put.
Fig. 3 is the constant-resistance dress according to a kind of small-sized constant resistance and large deformation anchor cable shown in an illustrative embodiments
The left view schematic diagram put.
Fig. 4 is the constant-resistance dress according to a kind of small-sized constant resistance and large deformation anchor cable shown in an illustrative embodiments
The cross-sectional schematic put.
Fig. 5 is to monitor system according to the one small-sized constant resistance and large deformation anchor cable shown in an illustrative embodiments
General illustration.
Wherein, description of reference numerals is as follows:
1. sleeve pipe；2. constant-resistance body；21. connecting portions；3. liner；31. wedge-shaped parts；32. stopper sections；4. regulation
Device；41. sharp portions；42. regulation portions；5. cable；6. anchorage；7. slider bed；8. slip mass；The most potential slip
Face；100. small-sized constant resistance and large deformation anchor cables；200. mechanics sensor；300. data acquisition equipment；400 letters
Breath processing terminal；L. sliding force.
Detailed description of the invention
It is described more fully with example embodiment referring now to accompanying drawing.But, example embodiment can
Implement in a variety of forms, and be not understood as limited to embodiment set forth herein；On the contrary, it is provided that this
A little embodiments make the present invention will fully and completely, and the design of example embodiment are passed on all sidedly
To those skilled in the art.Reference identical in figure represents same or similar structure, thus will
Omit their detailed description.
Described feature, structure or characteristic can be combined in one or more reality in any suitable manner
Execute in mode.In the following description, it is provided that many details thus provide the embodiment party to the present invention
Fully understanding of formula.It will be appreciated, however, by one skilled in the art that the technical side of the present invention can be put into practice
Case and do not have in described specific detail one or more, or can use other method, assembly,
Material etc..In other cases, known features, material or operation are not shown in detail or describe to avoid
Fuzzy each aspect of the present invention.
According to an embodiment of the invention, the present invention provides the perseverance of a kind of small-sized constant resistance and large deformation anchor cable
Resistance device, it is mainly used in laboratory physical model experiment, and the big change of small-sized constant-resistance that the present invention provides
The constant-resistance device of shape anchor cable can use the material with NPR effect to make, say, that the present invention is permissible
Having Negative poisson's ratio, the constant-resistance device of certain present invention can not also have Negative poisson's ratio, this
The technical staff in field can be adjusted according to actual service condition.
The above-mentioned material with Negative poisson's ratio specifically refers to, and or the combined material of material own has negative
Poisson's ratio, negative poisson's ratio is defined as cross-direction shrinkage strain and the ratio of longitudinal tensile strain strain born, refers to that it is subject to
During stretching, material laterally expands in elastic range, and time by compression, laterally sending out on the contrary of material
Raw contraction.That is, during stretching it, the radial direction of the main body of material can expand
Phenomenon, by monitoring the deflection of its lateral expansion, thus draw the deflection that material itself is longitudinal.
The present invention uses the material with Negative poisson's ratio to make, and can be prevented effectively from landslide in current laboratory
During physical simulation experiment research, used tradition anchor cable can not adapt to slope rock mass constant resistance and large deformation and send out
Raw destruction, causes the phenomenon of the failure of an experiment.
The constant-resistance device of a kind of small-sized constant resistance and large deformation anchor cable that the present invention provides, it mainly can include set
Managing and for connecting the constant-resistance body of cable, during use, constant-resistance body can connect cable, and constant-resistance body is installed
In inside pipe casing, the further present invention can also include a liner and actuator.
Liner can be assembled in sleeve pipe, and one end of liner inwall can be provided with wedge-shaped part, wedge shape
The outer end opening of portion's inwall is more than interior end opening, and constant-resistance body is assemblied in inside liner, and constant-resistance body is permissible
It is assemblied in wedge-shaped part.
Actuator can be located at constant-resistance body week side to, and actuator can be one or more, this
Invention does not limit its concrete quantity.Actuator is telescopic to be positioned on constant-resistance body, and actuator
Can be connected to the inwall of wedge-shaped part, constant-resistance body connects cable in the one end away from actuator, by adjusting
The collapsing length of actuator regulates the constant-resistance of the present invention.
The intensity of actuator is more than the intensity of liner, say, that in the present invention, liner can use to be had
The material of Negative poisson's ratio is made.And in actual use, owing to sleeve pipe is extruded by surrounding ground
Effect and substantially stationary, constant-resistance body is under the traction of cable so that constant-resistance body moves in the liner of sleeve pipe,
The shape of constant-resistance body does not changes, and liner generation plastic deformation produces constant-resistance.
From said structure, the constant-resistance device of a kind of small-sized constant resistance and large deformation anchor cable that the present invention provides,
It is not only simple in structure easy to use.And the present invention has the characteristic of opposing large deformation, based on making this
Invention can realize the monitoring to landslide overall process and early warning, effectively prevent when pulling force bending more than cable
When taking intensity, it is susceptible to break the phenomenon with breaking test.And by said structure, this
Bright it is provided with actuator so that the present invention can adjust the size of constant-resistance very easily, so that this
The bright scope of application is relatively broad, can meet the demand of different indoor physical model experiments.
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is illustrated as follows:
Fig. 1 is the constant-resistance dress according to a kind of small-sized constant resistance and large deformation anchor cable shown in an illustrative embodiments
The schematic front view put.Fig. 2 is according to the small-sized constant resistance and large deformation of one shown in an illustrative embodiments
The elevational schematic view of the constant-resistance device of anchor cable.Fig. 3 is little according to the one shown in an illustrative embodiments
The left view schematic diagram of the constant-resistance device of type constant resistance and large deformation anchor cable.Fig. 4 is according to an illustrative embodiments
The cross-sectional schematic of the constant-resistance device of a kind of small-sized constant resistance and large deformation anchor cable illustrated.
As shown in Figures 1 to 4, the constant-resistance device of the small-sized constant resistance and large deformation anchor cable of the present embodiment, it is main
Sleeve pipe 1 to be included and for connecting the constant-resistance body 2 of cable, and also include a liner 3 and actuator 4.
Sleeve pipe 1 and constant-resistance body 2 can be formed by the metal material processing after preservative treatment, to extend this
Bright service life.It should be understood, however, that and all embodiments of non-invention all must use
Antiseptic metal material is made, and it can also use other metal material to make.Sleeve pipe 1 and perseverance
The concrete size of resistance body 2 can determine according to practical situation, and the present invention does not limit the tool both it
Body size.In one embodiment of the invention, sleeve pipe 1 specifically can use a diameter of 20mm, length
The tubular structure made for the metal material of 25mm.Constant-resistance body 2 specifically can use a length of 40mm
The cylindrical structural made of metal material, its diameter can use sizes, but its diameter selects
For being less than the aperture of sleeve pipe 1, so that constant-resistance body 2 can move freely in sleeve pipe 1.Certainly may be used
To be understood by, the concrete size in above-described embodiment is only for example use, to realize the effect of the present invention,
And and be not used to limit the present invention.
Liner 3 is assembled in sleeve pipe 1, and one end of liner 3 inwall is provided with wedge-shaped part 31, wedge shape
The outer end opening of portion 31 inwall is more than interior end opening, and constant-resistance body 2 is assemblied in inside liner 3.Liner 3
Duroplasts can be used to process, its purpose is to make its hardness be less than constant-resistance body 2, when constant-resistance body 2
When suffered external force is more than the frictional force between actuator 4 and liner 3, constant-resistance body 2 can be along interior
The lining 3 uniform constant-resistance frictional slip of generation, owing to liner 3 material is soft compared with constant-resistance body 2 material, friction is sliding
During shifting, constant-resistance body 2 will not wear and tear, thus causes the situation about being gradually reduced of constant-resistance to occur, and i.e. protects
Demonstrate,prove constant frictional resistance and designed.It will be appreciated by persons skilled in the art that the present invention does not limit
Determining the concrete material of liner 3, the material that those skilled in the art can use other quality similar is made.
But it should be noted that, the intensity of liner 3 should be less than the intensity of constant-resistance body 2.
Actuator 4 be located at 2 weeks sides of constant-resistance body to, and actuator 4 is telescopic is positioned constant-resistance body
2, actuator 4 can be connected to the inwall of wedge-shaped part 31, and constant-resistance body 2 is in the one end away from actuator 4
Connect cable 5, regulate constant-resistance by adjusting the collapsing length of actuator 4.Actuator 4 specifically comes
Saying and the material as sleeve pipe 1 can be used to make, it can also use the gold with anti-corrosion function certainly
Belong to material to make, to improve the service life of the present invention.The intensity of actuator 4 can with sleeve pipe 1 and
The intensity of constant-resistance body 2 is identical, or the intensity of actuator 4 is merely greater than the intensity of liner 3, so that
When constant-resistance body 2 moves in liner 3, constant-resistance body 2 shape invariance and liner 3 occurs plastic deformation to produce
Raw constant-resistance.
The material building side slope used by the physical simulation experiment of the most indoor landslide is different, so landslide
Sliding force difference in size during destruction is relatively big, and the constant-resistance adjusting the present invention the most quickly and easily becomes
It it is a problem anxious to be resolved.In one embodiment of the invention, actuator 4 can include sharp portion
41 and regulation portion 42, sharp portion 41 is resisted against on the inwall of liner 3；Regulation portion 42 is telescopic fixed
It is positioned on constant-resistance body 2.Actuator 4 can use the screw on a kind of pinnacle specifically, and its top is point
Thorn portion 41, bottom is regulation portion 42, and actuator 4 can be scalable in the way of using internal and external threads cooperation
Be positioned on constant-resistance body 2.Then by adjusting the extension elongation of actuator 4, constant-resistance can be controlled
Size.When actuator 4 overhang is bigger, the frictional force between constant-resistance body 2 and liner 3 strengthens,
Constant-resistance increases simultaneously；When actuator 4 overhang is less, the friction between constant-resistance body 2 and liner 3
Power reduces, and constant-resistance reduces the most accordingly simultaneously.Just can adjust quickly and easily by adjusting actuator 4
The size of constant-resistance, to meet the demand of physical model experiment in different chamber, logical said structure so that
The scope of application of the present invention is more extensive.The sharp portion 41 of actuator 4, from outer side-looking, can be circular, when
So it is alternatively chosn to non-circular, is such as set to outer polygon (rectangle or hexagon), in order to utilize spanner
Carry out reversing the overhang of regulation actuator 4 with sharp portion 41 form fit.It should be understood that non-circular
It is alternatively chosn to oval grade for other shape, reverses as long as engaging can be carried out with corresponding instrument.
It will be appreciated by those skilled in the art that actuator 4 can use various ways to be assemblied in
On constant-resistance body 2, and constant-resistance can be regulated the most easily.The most above-mentioned detailed description of the invention is not
In order to limit the present invention, and it is illustrative only use.
In another embodiment of the present invention, actuator 4 can be multiple, and it can be distributed in uniformly
All sides of constant-resistance body 2 to.This is used to design the ease for use mainly for improving the present invention, owing to having
Multiple actuators 4, the range of accommodation that can make the constant-resistance of the present invention is bigger, convenient suitable during use
More extensive by scope.The design of the most multiple actuators 4, it is also possible to make the present invention in reality
During use, stability is higher, thus can effectively avoid single actuator 4 to occur when pulling force is excessive
Fracture, thus caused the failure of an experiment.
As shown in Fig. 1 and Fig. 4, in one embodiment of the invention, at liner 3, there is wedge-shaped part 31
One end, the outer wall of liner 3 is additionally provided with stopper section 32, and stopper section 32 is pressed against the one of sleeve pipe 1
On end face.Specifically, stopper section 32 can use split-type design, preferred stopper section 32 and interior
Lining 3 can be made to use integrated mode, uses integrated mode can avoid actual and makes
During with, rupture in the junction of stopper section 32 and liner 3, so that the present invention can be suitable for
In the experimental situation that constant-resistance is bigger, to improve the scope of application of the present invention.
In one embodiment of the invention, the top of constant-resistance body 2 is provided with connecting portion 21, and cable 5 is fixing even
It is connected to connecting portion 21.Specifically, it can be the through hole arranged at constant-resistance body 2 to connecting portion 21,
Any one end for cable 5 passes, and is again connected on cable 5 and fixing connection.But
Cable 5 is not limited only to aforesaid way with the connected mode of connecting portion 21, and such as cable 5 can also be direct
The mode using welding is connected on connecting portion 21, and the present invention is not limiting as the connected mode that it is concrete.
Fig. 5 is to monitor system according to the one small-sized constant resistance and large deformation anchor cable shown in an illustrative embodiments
General illustration.
As it is shown in figure 5, the embodiment of the present invention also provides for a kind of small-sized constant resistance and large deformation anchor cable 100, it is main
Anchorage 6 to be included and cable 5, and the constant-resistance dress of the small-sized constant resistance and large deformation anchor cable in above-described embodiment
Put.Time actually used, the lower end of cable 5 is fixed on the connecting portion 21 on constant-resistance body 2, by liner
3 embed in sleeve pipe 1, and constant-resistance body 2 and cable 5 pass bottom sleeve pipe 1, then adjust actuator 4,
After actuator 4 has adjusted, using anchorage 6 to stretch fixing the upper end of cable 5, anchorage 6 can be pressed
It is butted on scar used during experiment, for measuring the real-time monitoring to slip mass sliding force.
As it is shown in figure 5, the embodiment of the present invention also provides for a kind of small-sized constant resistance and large deformation anchor cable monitoring system,
It mainly includes small-sized constant resistance and large deformation anchor cable 100 as above, mechanics sensor 200, data acquisition
Equipment 300 and the information processing terminal 400；Mechanics sensor 200 connects cable 5 by anchorage 6, and
And the deformation data detected is sent to data acquisition equipment 300；Data acquisition equipment 300 will gather
The deformation data arrived sends to the information processing terminal 400, and deformation data is processed by the information processing terminal 400
And analyze, it is achieved the real-time monitoring to slip mass sliding force.
System monitored by small-sized constant resistance and large deformation anchor cable to the present invention and concrete monitoring method illustrates such as below
Under: as it can be seen, indoor landslide physical divides two parts, a part to be slider beds 7, another part is
Slip mass 8.Slider bed 7 and slip mass 8 are split by potential water use 9, and potential water use 9 can be one
Individual sliding surface (width is ignored), it can also be a slip band (having one fixed width) certainly.
When landslide occurs, slip mass 8, along the downward sliding of potential water use 9, produces phase para-position with slider bed 7
Move.
Before the experiment, when building Landslide Model, can be by above-mentioned small-sized constant resistance and large deformation anchor cable group
Install, and adjust constant-resistance as desired.Then small-sized constant resistance and large deformation anchor cable is fixed on slider bed 7
Inside.Holing in slider bed 7 and slip mass 8, aperture can use 1cm to be advisable.Cable 5 passes through
Boring runs through slider bed 7 and slip mass 8, and is fixed by the connecting portion 21 of cable 5 lower end with constant-resistance body 2
Connecting, upper end can be fixed on mechanics sensor 200 by anchorage 6.Thus constitute one complete
Whole small-sized constant resistance and large deformation anchor cable monitoring system.
The operation principle of the small-sized constant resistance and large deformation anchor cable monitoring system of the present invention is: when sliding force L is more than
During skid resistance, slip mass 8 starts to glide, according to newton during downslide along potential water use 9
Second law, mechanical meaurement is due to displacement measurement, and therefore first active force acts on the cable 5, then
By cable 5, power is conducted to the mechanics sensor 200 on earth's surface, it is achieved that the measurement to deep sliding force.
When sliding force L is less than the frictional force between liner 3 and actuator 4, cable 5 produces elastic deformation；
When sliding force L is more than the frictional force between liner 3 and actuator 4, constant-resistance body 2 is along liner 3
Raw sliding, produces malformation.The purpose of do so is to prevent the excessive surrender exceeding cable 5 of external force strong
When spending, cable 5 is pulled off destruction.Therefore constant-resistance must be less than the yield strength of cable 5, it is ensured that
Cable 5 deforms in elastic range.The adjustment of constant-resistance fully relies on actuator 4 and realizes, by this
Structure can effectively prevent the fracture of cable 5, thus is prevented effectively from the failure of an experiment.
The connecting portion 21 of constant-resistance body 2 is to connect cable 5 and a kind of structure of constant-resistance body 2.Due to cable 5
Run through whole slip mass 8 by boring, when slip mass 8 occurs sliding along potential water use 9, produce
Raw active force is necessarily loaded on cable 5, and by the transmission of cable 5, active force is delivered to constant-resistance body
On 2.
Mechanics sensor 200 connects data acquisition equipment 300, after the sliding force data acquisition of deep,
Send to the information processing terminal 400 by carrying antenna.Data acquisition equipment 300 and the information processing terminal
Connection between 400 can transmit deformation data in the way of using wirelessly or non-wirelessly, such as, can use
The wireless networks such as zigbee, WIFI transmit deformation data.The information processing terminal 400 is embedded in data and divides
Analysis and process software, can be by the deformation data automatic filter monitored and drafting curve, it is achieved that to cunning
The real-time monitoring of slope body sliding force.
The small-sized constant resistance and large deformation anchor cable monitoring system of the present invention, is that the landslide overall process of complete set is indoor
Physical simulation experiment deep mechanical quantity data acquisition unit, owing to having the function of opposing large deformation, therefore
Achieve the monitoring to landslide overall process and early warning, can be prevented effectively from when pulling force is more than the surrender of cable 5
During intensity, it is susceptible to the phenomenon of fracture.
It should be appreciated that the present invention be not limited in its application to parts in this paper detailed construction and
Arrangement.The present invention can have other embodiments, and can realize in many ways and perform.
Aforesaid deformation form and modification fall within the scope of the present invention.It should be appreciated that disclosed herein and
The present invention limited extends to text and/or drawings and mentions or significantly two or more are the most special
The all alternative combination levied.All these different combinations constitute the multiple alternative aspect of the present invention.
Embodiment as herein described illustrates to become known for realizing the best mode of the present invention, and will make this area
Technical staff can utilize the present invention.
Although disclosing the present invention with reference to some embodiment, but without departing substantially from the scope of the present invention and
On the premise of category, described embodiment can be carried out multiple variants and modifications.It will therefore be appreciated that
The invention is not limited in illustrated embodiment, its protection domain should be by the content of claims
And the structure of equivalence and scheme limit.
Claims (10)
1. a constant-resistance device for small-sized constant resistance and large deformation anchor cable, including sleeve pipe with for connecting the constant-resistance of cable
Body, it is characterised in that also include a liner and actuator；
Described liner is assembled in described sleeve pipe, and one end of described liner inwall is provided with wedge-shaped part, institute
The outer end opening stating wedge-shaped part inwall is more than interior end opening, and described constant-resistance body is assemblied in inside described liner；
Described actuator be located at described constant-resistance body week side to, and described actuator is telescopic is positioned institute
Stating constant-resistance body, abut described wedge-shaped part inwall with described actuator, described constant-resistance body is away from described actuator
One end connect cable, by adjust described actuator collapsing length regulate constant-resistance；
The intensity of described actuator is more than the intensity of described liner, so that described constant-resistance body moves in described liner
Time dynamic, described actuator shape invariance and described liner generation plastic deformation and produce constant-resistance.
The constant-resistance device of small-sized constant resistance and large deformation anchor cable the most as claimed in claim 1, it is characterised in that
Described liner has one end of described wedge-shaped part, and the outer wall of described liner is also convexly equipped with stopper section, and described
Stopper section is pressed against on described sleeve pipe end face.
The constant-resistance device of small-sized constant resistance and large deformation anchor cable the most as claimed in claim 1, it is characterised in that institute
Stating actuator and include sharp portion and regulation portion, described sharp portion is resisted against on the inwall of described liner；Described
Regulation portion is telescopic to be positioned on described constant-resistance body.
The constant-resistance device of small-sized constant resistance and large deformation anchor cable the most as claimed in claim 1, it is characterised in that institute
State the mode that actuator uses internal and external threads to coordinate, telescopic be positioned on described constant-resistance body.
The constant-resistance device of small-sized constant resistance and large deformation anchor cable the most as claimed in claim 1, it is characterised in that institute
The top stating constant-resistance body is provided with connecting portion, and described cable is fixedly connected on described connecting portion.
The constant-resistance device of small-sized constant resistance and large deformation anchor cable the most as claimed in claim 1, it is characterised in that institute
It is multiple for stating actuator, be distributed in uniformly all sides of described constant-resistance body to.
7. the constant-resistance device of the small-sized constant resistance and large deformation anchor cable as described in any one of claim 1 to 6, it is special
Levying and be, the material of described liner is duroplasts.
8. the constant-resistance device of the small-sized constant resistance and large deformation anchor cable as described in any one of claim 1 to 6, it is special
Levying and be, described sleeve pipe and constant-resistance body are metal material, and described sleeve pipe and constant-resistance bluk recombination have anti-
Rotten material.
9. a small-sized constant resistance and large deformation anchor cable, including anchorage and cable, it is characterised in that also include constant-resistance
Device, described constant-resistance device includes sleeve pipe and for connecting the constant-resistance body of cable, and also is lined with in including one
And actuator；
Described liner is assembled in described sleeve pipe, and one end of described liner inwall is provided with wedge-shaped part, institute
The outer end opening stating wedge-shaped part inwall is more than interior end opening, and described constant-resistance body is assemblied in inside described liner；
Described actuator be located at described constant-resistance body week side to, and described actuator is telescopic is positioned institute
Stating constant-resistance body, abut described wedge-shaped part inwall with described actuator, described constant-resistance body is away from described actuator
One end connect cable, by adjust described actuator collapsing length regulate constant-resistance；
The intensity of described actuator is more than the intensity of described liner, so that described constant-resistance body moves in described liner
Time dynamic, described actuator shape invariance and described liner generation plastic deformation and produce constant-resistance；
The lower end of described cable is fixed on described constant-resistance body.
10. a small-sized constant resistance and large deformation anchor cable monitoring system, including small-sized perseverance as claimed in claim 9
Resistance large deformation anchor cable, it is characterised in that also include at a mechanics sensor, data acquisition equipment and information
Reason terminal；Described mechanics sensor connects described cable, and the deformation number that will detect by described anchorage
According to sending to data acquisition equipment；The deformation data collected is sent to information by described data acquisition equipment
Reason terminal, deformation data is processed and analyzes by the described information processing terminal, it is achieved the reality to slip mass sliding force
Time monitoring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610274458.5A CN105931536A (en) | 2016-04-28 | 2016-04-28 | Miniature constant resistance large-deformation anchor cable and constant resistance device thereof and monitoring system |
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| CN201610274458.5A CN105931536A (en) | 2016-04-28 | 2016-04-28 | Miniature constant resistance large-deformation anchor cable and constant resistance device thereof and monitoring system |
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| CN113294187A (en) * | 2021-05-24 | 2021-08-24 | 上海应用技术大学 | Telescopic anchor rod and construction method thereof |
| CN113482663A (en) * | 2021-08-05 | 2021-10-08 | 何满潮 | Double-isolation double-control tunnel structure and method for preventing and controlling large-deformation disasters of engineering rock mass |
| WO2022042761A1 (en) * | 2020-11-16 | 2022-03-03 | 中国矿业大学(北京) | Npr anchor rod monitoring and control system and method for rock slope collapse disaster |
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Application publication date: 20160907 |