CN105068113B - Judge the method for side slope danger float stone - Google Patents
Judge the method for side slope danger float stone Download PDFInfo
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- CN105068113B CN105068113B CN201510431464.2A CN201510431464A CN105068113B CN 105068113 B CN105068113 B CN 105068113B CN 201510431464 A CN201510431464 A CN 201510431464A CN 105068113 B CN105068113 B CN 105068113B
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Abstract
The present invention relates to the method for judging side slope danger float stone.This method comprises the following steps, step 1：The excellent frequency value of multiple float stones, and the effective amplitude ratio of multiple float stones are obtained, and judges whether the plurality of float stone is dangerous float stone；Step 2：Excellent frequency value and effective amplitude ratio based on multiple dangerous float stones establish the judgement area of side slope danger float stone；Step 3：When the excellent frequency value of the float stone judged and effective amplitude ratio are in judgement area, float stone is dangerous float stone.The method according to the invention, it will determine that the index of float stone risk factor carries out quantifying the risk factor for judging float stone later.This avoids the subjectivity of staff, and judged result is also very accurate.
Description
Technical field
The present invention relates to field of civil engineering, more particularly to a kind of method for judging side slope danger float stone.
Background technology
Side slope float stone is, for example, that the part being scattered on the slopes such as highway, railway (i.e. side slope) is imbedded in soil layer, portion
Divide the rock for exposing earth's surface.Float stone, particularly huge float stone have the risk tumbled from side slope.Once float stone rolls down to public affairs
On road or railway, significant damage is inevitably caused.Therefore, or even before repairing the roads it should just judge that side slope float stone tumbles
Risk factor.
In the prior art, judging the most frequently used method of side slope danger float stone is：First to the current of soil layer and float stone
Situation is scored, and is divided into unstable, somewhat unstable, stably.Then topographic and geologic exploration, topographic map are recycled and is taken photo by plane
The investigation result that the landform such as photo judge etc. further determines.So, given a mark according to each survey item, pass through fraction
Additional mode implements risk factor judgement.However, this method relies primarily on the micro-judgment for judging staff, subjectivity is non-
Chang great, judged result result are inaccurate.
The content of the invention
In view of the above-mentioned problems, the present invention proposes a kind of method for judging side slope danger float stone.The method according to the invention,
It will determine that the index of float stone risk factor carries out quantifying the risk factor for judging float stone later.This avoids the subjectivity of staff,
Judged result is also very accurate.
Comprised the following steps according to the method for the judgement side slope danger float stone of the present invention, step 1：Obtain multiple float stones
Excellent frequency value, and the effective amplitude ratio of multiple float stones, and judge whether multiple float stones are dangerous float stone；Step 2：
Excellent frequency value and effective amplitude ratio based on multiple dangerous float stones establish the judgement area of side slope danger float stone；Step 3：
When the excellent frequency value of the float stone judged and effective amplitude ratio are in judgement area, float stone is dangerous float stone.
The excellent frequency value of float stone can characterize float stone relative to side slope or the degree of the vibration speed of ground.Effective amplitude ratio
Value can characterize float stone relative to side slope or the size of foundation vibration amplitude.It is found by the applicant that：Using float stone excellent frequency value and
Effective amplitude ratio can comprehensively characterize float stone relative to side slope or the vibration state of ground, therefore also mean that float stone
Risk factor.The method according to the invention, by the way that the excellent frequency value and effective amplitude ratio of multiple float stones will be measured, from statistics
The judgement area based on the plurality of excellent frequency value and the foundation of effective amplitude ratio can must be controlled in meaning has good representativeness.This
Sample, it is possible to judge the float stone whether in danger by means of measuring excellent frequency value and the effective amplitude ratio of float stone undetermined
State.Thus, quantified to judge completely float stone whether dangerous index, avoid the subjectivity of staff, judged result
Also it is very accurate.
In one embodiment, this method also includes the compactness for obtaining the ground of each in multiple float stones, in step
In rapid two, it will judge that dividing into more height judges area based on resulting multiple compactness, in step 3, when to be judged floats
The compactness of the excellent frequency value of stone, effective amplitude ratio and its ground be in more height judge one in area it is interior when, should
Float stone to be judged is dangerous float stone.It has been found that the compactness of side slope also can greatly influence the risk factor of float stone, this be by
It is larger to the holding capacity of float stone in the larger side slope of compactness, and the less side slope of compactness to the holding capacity of float stone more
It is small.Thus, judgement zoning described above is creatively divided into multiple sub- judgements by applicant using the compactness in side slope region
Area, this is just segmented to different types of float stone situation, thus, it is possible to judge more accurately and more accurately float stone whether be
Dangerous or safety.
In one embodiment, compactness is corresponding with effective amplitude ratio, wherein, low effective amplitude ratio corresponds to low
Compactness, high effective amplitude ratio correspond to high solidity.In another embodiment, in more height judge area, by low close
The son that solidity defines judges that the maximum figure value of the excellent frequency in area is less than the remarkable frequency that the son defined by high solidity judges area
The maximum figure value of rate.It has been found that the compactness in side slope region is smaller, the side slope region is got over to the holding capacity of float stone
Small, the shaking amplitude of float stone will be correspondingly bigger.Therefore, applicant has creatively divided effective amplitude ratio different
Section, different sections represent different ground compactness.Material is thus formed more height to judge area.This little Zhuo for judging area
More frequency values, effective amplitude ratio differ, thus, it is possible to the excellent frequency value based on float stone and effective amplitude ratio by its
Categorizedly it is grouped into different sons to judge in area, accurately judges that whether float stone is dangerous or safe so as to realize.
In one embodiment, compactness can also be represented by the coefficient of subgrade reaction of float stone.Coefficient of subgrade reaction is this
Known to the technical staff in field, its preparation method repeats no more here.In a specific embodiment, subgrade reaction system
Number is 0-50MN/m2For subgrade；Coefficient of subgrade reaction is 50-140MN/m2For middle hardness ground；Coefficient of subgrade reaction is more than
140MN/m2It is then hard place base.Here, MN is the unit of power, m2For the unit of area.
In a specific embodiment, side slope region includes：Effective amplitude ratio is more than or equal to 2.5 and less than or equal to 4
First kind region, effective amplitude ratio be more than 4 and less than or equal to 6 the second class region, and effective amplitude ratio be more than 6 and
The 3rd class region less than or equal to 8, corresponding first son in first kind region judge area, and corresponding second son in the second class region judges area,
Corresponding 3rd son in 3rd class region judges area.In another specific embodiment, the first son judges the excellent frequency in area most
Big boundary value is 60Hz, and the second son judges that the maximum figure value of the excellent frequency in area is 80Hz, and the 3rd son judges the remarkable frequency in area
The maximum figure value of rate is 120Hz.
In this application, term " excellent frequency " can be obtained by analyzing the vibration collection of illustrative plates of float stone, and this is this area
Technical staff known to, repeat no more here.For fixed object, excellent frequency is fixed value.Term " effectively shakes
Amplitude ratio value " refers to the ratio of the root-mean-square value of float stone amplitude and the root-mean-square value of ground amplitude.
Compared with prior art, it is the advantages of the application：It is method according to the invention it is possible to undetermined floating by means of measuring
The excellent frequency value of stone and effective amplitude ratio judge whether the float stone is in the hole.Thus, quantified to judge completely
Float stone whether dangerous index, avoid the subjectivity of staff, judged result is also very accurate.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 shows the schematic diagram of float stone.
Fig. 2 shows the step schematic diagram for implementing the method according to the invention.
Fig. 3 shows that the son of the side slope danger float stone obtained according to an embodiment of the invention judges area.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not according to the ratio of reality.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 schematically shows the situation of float stone.As shown in figure 1, float stone 1 is typically found in inclined side slope 2.
Float stone 1 occurs under vibrations or other situations, and float stone 1 may be tumbled and caused the accident along side slope 2.Therefore, it is necessary to judge to float
Whether stone 1 is dangerous float stone.
Fig. 2 schematically shows the step of implementing the method according to the invention.As shown in Fig. 2 the method bag of the present invention
Include following steps：
Step 21：The excellent frequency value of multiple float stones, and multiple float stones and the effective amplitude ratio of corresponding side slope are obtained,
And judge whether the plurality of float stone is dangerous float stone.
Step 22：Excellent frequency value and effective amplitude ratio based on multiple dangerous float stones establish side slope danger float stone
Judge area.
Step 23：When wait the excellent frequency value of the float stone judged and effective amplitude ratio be in judge in area when, the float stone
For dangerous float stone.
In step 21, excellent frequency value can be obtained by following mode.By taking the float stone 1 shown in Fig. 1 as an example, in float stone 1
Upper setting vibrating sensor 3.Float stone 1 is tapped by using external object such as hammer, vibrating sensor 3 can detect float stone
1 vibration frequency.After corresponding analytical instrument analysis vibration frequency, so that it may obtain the excellent frequency value of float stone 1.Vibration
Sensor 3 and corresponding analytical instrument are well known to the skilled artisan in the art, are repeated no more here.
Effective amplitude ratio can be obtained by following mode.Again according to Fig. 1, shaken even if not applying from outer bound pair float stone 1
Energy, vibrating sensor 3 can also measure the amplitude of itself of float stone 1.In the region of the side slope 2 residing for float stone 1, vibration is set
Sensor 4, it is derived from the amplitude of the ground of float stone 1.Effective amplitude ratio is then the root mean square and ground amplitude of the amplitude of float stone 1
Root-mean-square value ratio.The calculating formula of effective amplitude ratio is as shown in Equation 1：
Formula 1,
In formula 1, R is effective amplitude ratio, and Y is the amplitude of float stone, and X is ground or the amplitude of side slope, and i is the number of amplitude
Amount.
Table 1 schematically shows excellent frequency value, effective amplitude ratio and its ground of the multiple float stones detected
Soft or hard degree.For float stone, it is generally recognized that：When the float stone unit mass limit pushes down power and is less than 3.5N/Kg, it can determine that floating
Stone is unstable.
Table 1
In step 22, can be using effective amplitude ratio as abscissa, using excellent frequency value as ordinate, in rectangular co-ordinate
The judgement area of side slope danger float stone is drawn out in system.
In a preferred embodiment, also it will judge that Division is not multiple using the compactness of the different zones of side slope 2
Son judges area.Because compactness and effective amplitude ratio are mutually tackled, it is preferred that effective amplitude ratio can be divided into difference
Section, these sections correspond to different sons and judge area.It should be noted that low effective amplitude ratio corresponds to low compactness,
High effective amplitude ratio corresponds to high solidity.Fig. 3 schematically shows that this seed judges area.As can be seen from Figure 3：By low
The son that compactness defines judges that the maximum figure value of the excellent frequency in area is less than the brilliance that the son defined by high solidity judges area
The maximum figure value of frequency.For example, son judges that the effective amplitude ratio in area 31 is more than or equal to 2.5 and less than or equal to 4, and son judges
The effective amplitude ratio in area 32 is more than 4 and less than or equal to 6, and son judges that the effective amplitude ratio in area 33 is more than 6 and is less than or equal to
8.Son judges that the maximum figure value of the excellent frequency in area 31 is 60Hz, and the maximum figure value of the excellent frequency in sub- judgement area 32 is
80Hz, the maximum figure value of the excellent frequency in sub- judgement area 33 is 120Hz.
Thus, area can be judged to judge the risk factor of other float stones by means of the son shown in Fig. 3.Table 2 is shown using root
The result of determination in area is judged according to the son shown in Fig. 3.As shown in Table 2, whether float stone can be judged according to the method for invention exactly
It is stable.
Table 2
Although by reference to preferred embodiment, invention has been described, the items being previously mentioned in various embodiments
Technical characteristic can combine in any way.The invention is not limited in specific embodiment disclosed herein, but including
All technical schemes fallen within the scope of the appended claims.
Claims (6)
1. a kind of method for judging side slope danger float stone, comprises the following steps,
Step 1：Obtain the excellent frequency values of multiple float stones, the effective amplitude ratio of the multiple float stone and its ground and more
The compactness of the ground of each in individual float stone, and judge whether the multiple float stone is dangerous float stone；
Step 2：Excellent frequency value and effective amplitude ratio based on multiple dangerous float stones establish the judgement of side slope danger float stone
Area, more height are divided into the judgement based on resulting multiple compactness and judge area；
Step 3：It is described floating when when the excellent frequency value of the float stone judged and effective amplitude ratio are in the judgement area
Stone is dangerous float stone, at the compactness of the excellent frequency value of the float stone to be judged, effective amplitude ratio and its ground
One in the multiple sub- judgement area it is interior when, the float stone to be judged is dangerous float stone.
2. according to the method for claim 1, it is characterised in that in the multiple sub- judgement area, defined by low compactness
Son judge area excellent frequency maximum figure value be less than by high solidity define son judge area excellent frequency maximum
Boundary value.
3. according to the method for claim 2, it is characterised in that the compactness is corresponding with the effective amplitude ratio,
Wherein, low effective amplitude ratio corresponds to the low compactness, and high effective amplitude ratio corresponds to the high solidity.
4. according to the method for claim 1, it is characterised in that the compactness is by the coefficient of subgrade reaction of float stone come table
Show.
5. according to the method for claim 3, it is characterised in that the side slope region includes：Effective amplitude ratio be more than etc.
It is more than 4 and the second class region less than or equal to 6, Yi Jiyou in 2.5 and the first kind region less than or equal to 4, effective amplitude ratio
Imitate quotient of amplitudes and be more than 6 and the 3rd class region less than or equal to 8,
Corresponding first son in the first kind region judges area, and corresponding second son in the second class region judges area, the 3rd class
Corresponding 3rd son in region judges area.
6. according to the method for claim 5, it is characterised in that first son judges the maximum figure of the excellent frequency in area
It is worth and judges that the maximum figure value of the excellent frequency in area is 80Hz for 60Hz, second son, the 3rd son judges the brilliance in area
The maximum figure value of frequency is 120Hz.
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| CN108204929B (en) * | 2017-12-31 | 2023-11-21 | 中国中元国际工程有限公司 | Technology for rapidly judging engineering application conditions of polyurethane vibration isolator |
| CN109374444B (en) * | 2018-11-15 | 2021-01-22 | 山东理工大学 | Intelligent pumice detection device and method |
| CN110471108A (en) * | 2019-07-15 | 2019-11-19 | 姚国专 | The remote contactless method for differentiating stability of unstable rock |
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| CN102505965B (en) * | 2011-11-11 | 2013-10-23 | 中国矿业大学(北京) | Method for identifying rock mass failure instability early warning |
| CN103135128B (en) * | 2013-01-31 | 2015-07-01 | 重庆大学 | Three-dimensional slope stability prediction method under earthquake load effect |
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