CN108919339A - It is a kind of simulation meizoseismal area side slope by lateral impact load dynamic response test device and test method - Google Patents
It is a kind of simulation meizoseismal area side slope by lateral impact load dynamic response test device and test method Download PDFInfo
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Abstract
The invention discloses a kind of simulation meizoseismal area side slopes by the dynamic response test device of lateral impact load, including reaction frame, chamber, spring, sliding slot, bracket；Side slope model is provided in the chamber, the side slope model includes the side slope for being placed in the embankment of chamber bottom and being placed on embankment, the side slope section is right-angled trapezium shape, it tests upper box part and side slope inclined-plane and embankment corresponding part is opening setting, the chamber antetheca is equipped with watch window, and side slope model inclined-plane side is towards watch window.The present invention truly reproduces meizoseismal area side slope by lateral impact load power action response process and response mode, provides for Structural Design, geological hazards prediction etc. and accurately and reliably suggests；The configuration of the present invention is simple is easy to be made, is easy to operate, and test method is simple, economical, repeatable.
Description
Technical field
The invention belongs to Geotechnical Engineering field, the dynamic response test device and survey of especially a kind of meizoseismal area side slope
Method for testing.
Background technique
Earthquake is vibration caused by during earth's crust quick release of energy, during which can generate a kind of naturally existing of seismic wave
As.Seismic wave is divided into three types by circulation way：Longitudinal wave, shear wave and surface wave.Longitudinal wave is translatory wave, and spread speed is in the earth's crust
5.5~7,000 meter per seconds reach earthquake centre, also known as P wave at first, it vibrates up and down ground, destructive weaker.Shear wave is shearing
Wave, the spread speed in the earth's crust are 3.2~4.0 thousand meter per seconds, second arrival earthquake centre, also known as S wave, before ground occurs in it
Afterwards, left and right shake, it is destructive stronger.Surface wave is also known as L wave, is the mixing for exciting generation after earth's surface is met by longitudinal wave and shear wave
Wave.Its wavelength is big, amplitude is strong, can only propagate along ground surface, is the principal element for causing building to destroy strongly.Damage Epicenter vibration
Dynamic most strong, the area destroyed than also most serious is known as meizoseismal area, and when earthquake occurs, most basic phenomenon is the continuous vibration on ground
Dynamic, mainly apparent to shake, the people of meizoseismal area feels to move up and down, i.e. longitudinal wave first sometimes before the shaking for feeling big
It arrives first at, followed by double swerve caused by shear wave, followed by shaking big caused by surface wave.
Tunnel portal side slope refers to the slope surface with certain slope that tunnel portal two sides are made into.Southwestern China portion area is
The multiple area of high-intensity earthquake, and building or proposed large-scale hydroelectric project and the more emphasis of geotechnical engineering subterranean tunnel group
Region.The slope instability of earthquake-induced can directly threaten the people's lives and property safety, therefore seismic stability of slopes is studied
It is significant.However, earthquake-induced slope instability has very big uncertainty, this uncertainty is mainly from side slope itself property
Shape and potential complications act on two aspects, and side slope itself character belongs to the easy clockwork spring part of seismic slope unstability, including slope ground
Body structure and physico-mechanical properties and side slope geometry；Potential complications act on the risk factor for belonging to slope instability.For
One specific side slope, it is believed that itself character of side slope determines relatively, main uncertain from following earthquake
Effect, that is, risk factor.Dynamic seismic effect is summarized as the intensity of earthquake motion, frequency and continued by Traditional project seismology
It is time, i.e., so-called " three essential of earthquake motions ", but to the earthquake motive force mode of action (that is, dynamic seismic effect direction and effect
Property) consideration of this element is not enough.
Dynamic seismic effect is sufficiently complex, is simulated in research frequently with numerical method at present, while mostly using vibration
The full-scale model tests such as platform test and Dynamic Centrifugal Model Test carry out failure under earthquake action, however rarely have and be related to simply shaking
The test device of the simulation of power can be reproduced in the response of varying strength seismic wave shear wave power effect slope.Therefore, it needs to grind
A kind of dynamic response test device that can simulate meizoseismal area side slope by lateral impact load is produced, realizes testing equipment production
Convenient, test method is simple, economical, repeatable.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of production of testing equipment is convenient, test method is simple, it is economical,
Repeatable simulation meizoseismal area side slope is geological disaster by the dynamic response test device and test method of lateral impact load
Prediction offer is designed according to reference, for the structure in geotechnical engineering and optimization provides reliable parameter recommendation.
The technical solution adopted by the present invention to solve the technical problems is：A kind of simulation meizoseismal area side slope is by lateral impact
The dynamic response test device of load, including reaction frame, chamber, spring, sliding slot, bracket；It is provided in the chamber
Side slope model, the side slope model include the side slope for being placed in the embankment of chamber bottom and being placed on embankment, and the side slope is cut
Face is right-angled trapezium shape, tests upper box part and side slope inclined-plane and embankment corresponding part for opening setting, on the chamber antetheca
Equipped with watch window, side slope model inclined-plane side is towards watch window；The chamber is placed in reaction frame, described anti-
Top, bottom, left side and the right side of power frame are equipped with steel plate, the reaction frame top and side slope inclined-plane and embankment corresponding part
For opening setting, reaction frame right side steel plate is equipped with collision rectangular aperture；
The test upper box part, left side wall and right side wall pass through top, left side and the right side steel plate of spring and reaction frame
It is correspondingly connected with, steel that can be free to slide to level along left and right sides is provided between the chamber and reaction frame bottom steel plate
It is corresponding for accommodating steel to being provided with along left and right sides on the inside of ball, the chamber bottom outside and reaction frame bottom steel plate
The sliding rail of ball；
The sliding slot is divided into vertical accelerating sections, arc accelerating sections, horizontal linear section and horizontal arc and hits section, the level
The arc inflection point that arc hits section passes through collision rectangular aperture and is fixed at the centroid of chamber right side wall；The sliding slot bottom is set
There is at least one bracket to fixed chute.
Preferably, the vertical accelerating sections of the sliding slot is height-adjustable, the sliding slot be equipped with lifting platform, it is described can
Hoistable platform is equipped with the sulculus that bead can be allowed to slide, the vertical accelerating sections connection of described sulculus one end and sliding slot.
Preferably, it is in mirror that the horizontal arc of the sliding slot, which hits section by symmetry axis of normal at the centroid of chamber right side wall,
As symmetrical.
Preferably, the angle that the horizontal arc of the sliding slot hits normal at section and the centroid of chamber right side wall is θ,
30°≤θ≤60°。
Preferably, between test upper box part and the top steel plate of reaction frame, chamber left side wall and reaction frame
Between the steel plate of left side, on the right side of chamber right side wall and reaction frame between steel plate, the bottom steel of chamber bottom and reaction frame
The spring number N in each face is obtained by the following formula between plate：
Wherein K is the elasticity resisting coefficient of side slope, k0For the coefficient of elasticity of single spring.
A kind of simulation meizoseismal area side slope includes the following steps by the dynamic response test method of lateral impact load,
(a) a kind of simulation meizoseismal area side slope described in any of the above embodiments is provided to survey by the dynamic response of lateral impact load
Trial assembly is set, and rational proportion is carried out to test soil sample according to the parameter of the side slope in testing program, by test soil sample and side slope model
It is placed in chamber；
(b) bead is discharged on lifting platform, bead successively accelerates by vertical accelerating sections, arc in sliding slot
Section, horizontal linear section and horizontal arc hit section, then pass through the collision rectangular aperture of reaction frame right side wall in horizontal arc
The arc inflection point bump test case of section is hit, the mechanical response of side slope model is observed；
(c) by periodically discharging bead bump test case, simulation acts on slope model in meizoseismal area secondary wave
Dynamic response.
Preferably, the average impact force of the medium and small ball impact chamber of the step (b)It is obtained by the following formula：
Wherein M is the quality of bead, unit kg；For the speed after bead bump test case,For bead bump test
Speed before case,Unit is m/s；Δ t is the time of bead bump test case, unit s；As simulation earthquake is horizontal
Wave acts on the active force of side slope model；
WhereinIt is obtained by the following formula：
h1For the vertical range between bead point of release and rum point, unit m；G=9.8m/s2。
Preferably, when considering the effect of single secondary wave, in the same position of the vertical accelerating sections of sliding slot, by different
Time interval discharges bead.
Preferably, when considering the effect of varying strength secondary wave, in the different location of the vertical accelerating sections of sliding slot, by not
Same time interval discharges bead.
The beneficial effects of the invention are as follows：A kind of simulation meizoseismal area side slope of the invention is rung by the power of lateral impact load
Test device is answered, potential energy is kinetic energy, periodic bump test case, and starting by bead by the bead to fall from sliding slot
The different time intervals of height, release bead when whereabouts, to simulate meizoseismal area different earthquake shear wave intensity, various durations
It is tested with tunnel slope Dynamic response to earthquake under the conditions of different cycles, truly reproduces meizoseismal area tunnel slope secondary wave power
Action response process and response mode provide for Structural Design, geological hazards prediction etc. and accurately and reliably suggest, to engineering
Construction is provided fortification against earthquakes；
Bead potential energy not only can be kinetic energy, but also adjustable small direction of bowl bump test case by four sections of designs of sliding slot
Simulate seismic wave, and bead recycling is convenient, can successively recycle, to realize the successive shock of bead；
The configuration of the present invention is simple is easy to be made, is easy to operate, and test method is simple, economical, repeatable.
Detailed description of the invention
Fig. 1 is a kind of signal of the simulation meizoseismal area side slope of the present invention by the dynamic response test device of lateral impact load
Figure；
Fig. 2 is that a kind of simulation meizoseismal area side slope of the present invention is faced by the dynamic response test device of lateral impact load
Figure；
Fig. 3 is a kind of right view of the simulation meizoseismal area side slope of the present invention by the dynamic response test device of lateral impact load
Figure；
Fig. 4 is a kind of vertical view of the simulation meizoseismal area side slope of the present invention by the dynamic response test device of lateral impact load
Figure；
Fig. 5 is a kind of side slope of the simulation meizoseismal area side slope of the present invention by the dynamic response test device of lateral impact load
The right view of model；
In figure label for：1- chamber, 2- side slope model, 3- embankment, 4- steel ball, 5- spring, 6- sliding slot, 61- add vertically
The horizontal arc of fast section, 62- arc accelerating sections, 63- horizontal linear section, 64-, which hits section, 65- arc inflection point, 7- bracket, 8-, to be risen
Drop platform, 9- bead, 10- spring installation point, 11- collision rectangular aperture, 12- bead recovery end, 13- rum point, 14- bead enter
Penetrate end, 15- reaction frame, 16- steel plate, θ-incident direction of bead bump test case and normal at the centroid of chamber right side wall
Angle.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, Fig. 5, a kind of simulation meizoseismal area side slope of the invention is by lateral impact load
Dynamic response test device, including reaction frame 15, chamber 1, spring 5, sliding slot 6, bracket 7；Setting in the chamber 1
There is side slope model 2, the side slope model 2 includes the side slope for being placed in the embankment 3 of 1 bottom of chamber and being placed on embankment 3, described
Side slope section is right-angled trapezium shape, 1 top of chamber and side slope inclined-plane and 3 corresponding part of embankment is opening setting, the test
1 antetheca of case is equipped with watch window, and the 2 inclined-plane side of side slope model is towards watch window；The chamber 1 is placed in counter-force frame
In frame 15, top, bottom, left side and the right side of the reaction frame 15 are equipped with steel plate 16,15 top of reaction frame and side
Slope inclined-plane and 3 corresponding part of embankment are opening setting, and the 15 right side steel plate 16 of reaction frame is equipped with collision rectangular aperture 11；
2 bottom of side slope model is equipped with embankment 3, simulates the time of day of side slope, and the right side section of side slope is right-angled trapezium,
The upper bottom of right-angled trapezium and the upper contact of chamber 1, the lower contacts of bottom and chamber 1, a face at right angle and test
The contact of case rear wall, spring simulate the actual elastic drag in the face that side slope is artificially truncated, and the top of chamber 1 is that opening is set
It sets, top does not have load action, and there are free faces for side slope, and under Far-Field Earthquake, seismic wave is propagated through in the horizontal direction to be come,
Equably active force is applied in side slope by steel plate, side slope may dish out under geological process, collapse, and sliding etc. is broken
It is bad.
1 top of chamber, left side wall and right side wall pass through top, left side and the right side of spring 5 and reaction frame 15
Steel plate is correspondingly connected with, be provided between 15 bottom steel plate 16 of the chamber 1 and reaction frame can along left and right sides to level from
By the steel ball 4 slided, the diameter of the steel ball is 2cm, in 15 bottom steel plate 16 of 1 bottom outside of chamber and reaction frame
Lateral edge left and right sides are corresponding for accommodating the sliding rail of steel ball 4 to being provided with；
The sliding slot 6, which divides, hits section for vertical accelerating sections 61, arc accelerating sections 62, horizontal linear section 63 and horizontal arc
64, the arc inflection point 65 that the horizontal arc hits section 64 passes through the shape that collision rectangular aperture 11 is fixed on 1 right side wall of chamber
At the heart；6 bottom of sliding slot is equipped at least one bracket 7 to fixed chute 6；The bracket 7 is arranged every a distance,
With fixed chute 6, prevent sliding slot 6 from tilting or toppling over.
The vertical accelerating sections 61 of the sliding slot 6 is height-adjustable, and the sliding slot 6 is equipped with lifting platform 8, described to rise
Drop platform 8 is equipped with the sulculus that bead can be allowed to slide, and described sulculus one end is connect with the vertical accelerating sections 61 of sliding slot 6.Described is small
Slot one end is high, one end is low, and lower one end is connect with vertical accelerating sections 61, for guiding bead to roll to the vertical accelerating sections 61.
It is in mirror image that the horizontal arc of the sliding slot 6, which hits section 64 by symmetry axis of normal at the centroid of 1 right side wall of chamber,
Symmetrically.
The angle that the horizontal arc of the sliding slot 6 hits normal at section 64 and the centroid of 1 right side wall of chamber is θ, 30 °≤
θ≤60°.Angle theta is smaller, and lateral impact power is bigger, but when θ can cause bead to pop up less than 30 ° is possible to attached in rum point
Closely hit repeatedly, cause seismic wave intensity inaccuracy, thus the tunnel surrounding dynamic response observed also just and actual conditions
There are deviations；θ is unfavorable for the recycling of bead less than 30 °, to influence continuous, the periodically shock of bead；And θ be greater than 60 ° when
It is too small to the impact force of chamber in the horizontal direction, the height of bead point of release must be improved for biggish seismic wave intensity,
To improve test difficulty.It is obtained by Physical Experiment result, when pipeline is 100cm diameter, and bead is 60cm diameter, is hit
When to hit angle be 45 °, lateral impact power is big, and bead recycling is convenient, can continuously hit to simulate the ground of different cycles, varying strength
Seismic wave.
Between test upper box part and the top steel plate of reaction frame, steel plate on the left of chamber left side wall and reaction frame
Between, on the right side of chamber right side wall and reaction frame between steel plate, it is every between chamber bottom and the bottom steel plate of reaction frame
The spring number N in a face is obtained by the following formula：
Wherein K is the elasticity resisting coefficient of side slope, k0For the coefficient of elasticity of single spring.
Equally distributed 9 bullets in the same size are used between 1 top of chamber and the top steel plate of reaction frame 15
Spring connection.
Equally distributed 36 in the same size are used between 1 right side wall of chamber and the right side steel plate of reaction frame 15
Spring connection；In the same size equally distributed 36 are used between 1 left side wall of chamber and the left side steel plate of reaction frame 15
The connection of root spring.
A kind of simulation meizoseismal area side slope includes the following steps by the dynamic response test method of lateral impact load,
(a) a kind of simulation meizoseismal area side slope described in any of the above embodiments is provided to survey by the dynamic response of lateral impact load
Trial assembly is set, and rational proportion is carried out to test soil sample according to the parameter of the side slope in testing program, by test soil sample and side slope model 2
It is placed in chamber 1；
(b) bead is discharged on lifting platform, bead successively adds by vertical accelerating sections 61, arc in sliding slot 6
Fast section 62, horizontal linear section 63 and horizontal arc hit section 64, then pass through the collision rectangular aperture of 15 right side wall of reaction frame
11 hit the 65 bump test case 1 of arc inflection point of section 64 in horizontal arc, observe the mechanical response of side slope model 2；
(c) by periodically discharging bead bump test case 1, simulation acts on slope model in meizoseismal area secondary wave
2 dynamic response.
The average impact force of the medium and small ball impact chamber of step (b)It is obtained by the following formula：
Wherein M is the quality of bead, unit kg；For the speed after bead bump test case,For bead bump test
Speed before case,Unit is m/s；Δ t is the time of bead bump test case, unit s；As simulation earthquake is horizontal
Wave acts on the active force of side slope model 2；
WhereinIt is obtained by the following formula：
h1For the vertical range between bead point of release and rum point, unit m；G=9.8m/s2。
When considering the effect of single secondary wave, in the fixed same position of the vertical accelerating sections 61 of sliding slot 6, by different
Time interval discharges bead 9, and bead 9 is in identical speed and impact force bump test case 1,1 inner tunnel model 2 of chamber
In homogeneous formation, under the effect of single earthquake intensity, Stress relief will occur for tunnel support structure and tunnel surrounding 3, or even produce
It is raw to destroy, the deformation of tunnel support structure and tunnel surrounding 3 can be observed directly from 1 watch window of chamber；
When considering the effect of varying strength secondary wave, in the fixed different location of the vertical accelerating sections 61 of sliding slot 6, by not
Same time interval discharges bead 9, and bead will strike chamber 1 with different kinetic energy and impact force, by adjusting releasing
The height of the quantity, release bead dropped shot discharges the time interval of bead to realize simulation, observation one earthquake spectral action
The mechanical response of lower meizoseismal area tunnel surrounding.
Embodiment：
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, Fig. 5, a kind of simulation meizoseismal area side slope of the invention is installed by lateral impact
The dynamic response test device of load, as shown in Figure 1, by the soil sample of side slope model 2 loaded in chamber 1；On 1 antetheca of chamber
Organic glass observation window is installed, to observe the deformation of side slope in chamber 1.
After device installs, lifting platform is adjusted to h1Position, the bead that diameter is 3cm, quality is 887.81g is being risen
It is discharged on drop platform.Make bead along 6 bump test right wall of box of sliding slot, hits section 64 along horizontal arc after shock and pop up, it is sliding
The angle theta that the horizontal arc of slot 6 hits normal at section 64 and the centroid of 1 right side wall of chamber is 45 °.
The speed v before bead slides to bump test case is calculated according to kinetic energy equation1：
Average impact force in knockout process is calculated by the equation of momentum
Wherein M is the quality of bead, unit kg；For the speed after bead bump test case,For bead bump test
Speed before case,Unit is m/s；Δ t is the time of bead bump test case, unit s；As simulation earthquake is horizontal
Wave acts on the active force of side slope model 2；h1For the vertical range between bead point of release and rum point, unit m；G=
9.8m/s2。
Wherein, the speed after the speed of bead bump test case 1Collision time Δ t is measured by velocity radar, Δ t
Unit be s；As simulate the active force that secondary wave acts on 3 soil sample of tunnel surrounding；
I.e. in P Δ t=M (v2+v1)cos45°
After discharging first bead, lifting platform height h is adjusted immediately1, interval time Δ tsSecond bead is discharged,
Repeat aforesaid operations；
After discharging multiple beads, seismic wave is simulated to the effect of soil layer and the response of tunnels in soil.
Through the deformation of organic glass observation window observation side slope, the Mechanism of Deformation And Failure of side slope is probed into.Work as h1Occur
When variation, bead energy obtained will also change, h1Bigger, energy is bigger；When highly smaller, side slope only has part
Chip off-falling phenomenon occurs；And when height increases to a certain extent, side slope just starts to generate that part slides or overall collapse shows
As.
Claims (9)
1. a kind of simulation meizoseismal area side slope is by the dynamic response test device of lateral impact load, it is characterised in that：Including anti-
Power frame, chamber, spring, sliding slot, bracket；Side slope model is provided in the chamber, the side slope model includes placing
Embankment in chamber bottom and the side slope that is placed on embankment, the side slope section are right-angled trapezium shape, test upper box part and side
Slope inclined-plane and embankment corresponding part are opening setting, and the chamber antetheca is equipped with watch window, side slope model inclined-plane
Side is towards watch window；The chamber is placed in reaction frame, top, bottom, left side and the right side of the reaction frame
Equipped with steel plate, the reaction frame top and side slope inclined-plane and embankment corresponding part are opening setting, the reaction frame right side
Steel plate is equipped with collision rectangular aperture；
Test upper box part, left side wall and the right side wall are corresponding with the top of reaction frame, left side and right side steel plate by spring
Connection is provided with steel ball that can be free to slide to level along left and right sides between the chamber and reaction frame bottom steel plate,
It is corresponding for accommodating steel ball to being provided with along left and right sides on the inside of the chamber bottom outside and reaction frame bottom steel plate
Sliding rail；
The sliding slot is divided into vertical accelerating sections, arc accelerating sections, horizontal linear section and horizontal arc and hits section, the horizontal arc
The arc inflection point for hitting section passes through collision rectangular aperture and is fixed at the centroid of chamber right side wall；The sliding slot bottom is equipped with extremely
A few bracket to fixed chute.
2. a kind of simulation meizoseismal area side slope according to claim 1 tests dress by the dynamic response of lateral impact load
It sets, it is characterised in that：The vertical accelerating sections of the sliding slot is height-adjustable, the sliding slot be equipped with lifting platform, it is described can
Hoistable platform is equipped with the sulculus that bead can be allowed to slide, the vertical accelerating sections connection of described sulculus one end and sliding slot.
3. a kind of simulation meizoseismal area side slope according to claim 1 tests dress by the dynamic response of lateral impact load
It sets, it is characterised in that：It is in mirror that the horizontal arc of the sliding slot, which hits section by symmetry axis of normal at the centroid of chamber right side wall,
As symmetrical.
4. according to claim 2-3 it is described in any item it is a kind of simulation meizoseismal area side slope by lateral impact load dynamic response
Test device, it is characterised in that：The horizontal arc of the sliding slot hits the angle of normal at section and the centroid of chamber right side wall
For θ, 30 °≤θ≤60 °.
5. a kind of simulation meizoseismal area side slope according to claim 1 tests dress by the dynamic response of lateral impact load
It sets, it is characterised in that：Between test upper box part and the top steel plate of reaction frame, chamber left side wall and reaction frame it is left
Between the steel plate of side, on the right side of chamber right side wall and reaction frame between steel plate, the bottom steel plate of chamber bottom and reaction frame
Between the spring number N in each face be obtained by the following formula：
Wherein K is the elasticity resisting coefficient of side slope, k0For the coefficient of elasticity of single spring.
6. a kind of simulation meizoseismal area side slope is by the dynamic response test method of lateral impact load, it is characterised in that：Including with
Lower step,
(a) a kind of simulation meizoseismal area side slope as described in any one in claim 1-5 is provided by the power of lateral impact load
Response test device carries out rational proportion to test soil sample according to the parameter of the side slope in testing program, by test soil sample and side
Slope model is placed in chamber；
(b) bead is discharged on lifting platform, bead successively passes through vertical accelerating sections, arc accelerating sections, water in sliding slot
Flat level and horizontal arc hit section, and the collision rectangular aperture for then passing through reaction frame right side wall hits section in horizontal arc
Arc inflection point bump test case, observe side slope model mechanical response；
(c) it by periodically discharging bead bump test case, simulates in the dynamic of meizoseismal area secondary wave effect slope model
Force-responsive.
7. a kind of simulation meizoseismal area side slope according to claim 6 is by the dynamic response test side of lateral impact load
Method, it is characterised in that：The average impact force of the medium and small ball impact chamber of step (b)It is obtained by the following formula：
Wherein M is the quality of bead, unit kg；For the speed after bead bump test case,Before bead bump test case
Speed,Unit is m/s；Δ t is the time of bead bump test case, unit s；As simulation secondary wave is made
Used in the active force of side slope model；
WhereinIt is obtained by the following formula：
h1For the vertical range between bead point of release and rum point, unit m；G=9.8m/s2。
8. a kind of simulation meizoseismal area side slope according to claim 6 or 7 is tested by the dynamic response of lateral impact load
Method, it is characterised in that：When considering the effect of single secondary wave, in the same position of the vertical accelerating sections of sliding slot, by difference
Time interval discharge bead.
9. a kind of simulation meizoseismal area side slope according to claim 6 or 7 is tested by the dynamic response of lateral impact load
Method, it is characterised in that：Different location, process when considering the effect of varying strength secondary wave, in the vertical accelerating sections of sliding slot
Different time intervals discharges bead.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117783491A (en) * | 2024-02-27 | 2024-03-29 | 中国地质调查局成都地质调查中心（西南地质科技创新中心） | Physical simulation test device for soil landslide |
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