CN107545353A - A kind of quantitative evaluating method of geological disaster to highway communication influence degree - Google Patents
A kind of quantitative evaluating method of geological disaster to highway communication influence degree Download PDFInfo
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- CN107545353A CN107545353A CN201610989689.4A CN201610989689A CN107545353A CN 107545353 A CN107545353 A CN 107545353A CN 201610989689 A CN201610989689 A CN 201610989689A CN 107545353 A CN107545353 A CN 107545353A
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Abstract
A kind of quantitative evaluating method the invention discloses geological disaster to arrival tourist attractions highway communication influence degree, comprises the following steps：1）It is determined that have influence on the main Source market and scope of assessment up to tourist attractions highway communication；2）Calculate the highway communication accessibility that each main Source market passenger in area reaches sight spot；3）The weight of each geological disaster factor of influence in area is determined, selects key index and the classification of each factor of influence, geological hazard dangerous and subregion are calculated using GIS software；4）By the highway of geological hazard dangerous value imparting correspondent section in the range of the m of both sides of highway 200 as weight, and calculate the highway communication accessibility that each main Source market under this weight reaches sight spot；5）It will be divided by without the highway communication accessibility under the influence of geological disaster and the highway communication accessibility under being participated in geological disaster weighing factor, geological disaster is obtained to highway in scenic resort traffic impact index, so as to carry out quantitative assessment to tourist attraction highway communication influence degree to geological disaster.
Description
Technical field
A kind of method the present invention relates to geological disaster to highway communication influence degree qualitative assessment, is specifically namely based on friendship
Quantitative evaluating method of the tourist attraction geological disaster of logical accessibility to highway communication influence degree.
Background technology
The evaluation that Highway Geological Disaster influences is at present because the needs of engineering construction are a lot, but these evaluations are both for one
Certain section of development of bar highway Huo Yitiao highways, the result of evaluation is also to be divided according to the geological hazard dangerous size of highway
Section, and the size of harm or influence of the geological disaster on highway can only then pass through the ratio of high-risk section, geological disaster point
Density etc. carries out qualitative cognition, while is difficult to compare between different highways or even between the different sections of same highway.
The research of existing Highway Geological Disaster is to the research in terms of its hazard assessment and subregion, first, not to one mostly
Bar Huo Yiduan highways carry out the subregion of quantitative evaluation, only relative risk size, therefore highway is influenceed by geological disaster
Or extent of injury size is just difficult to the lateral comparison that has quantization, if carrying out unified can also carrying out horizontal ratio in terms of parameter selection certainly
Compared with, but be also substantially carried out qualitatively comparing；
Although disaster dot density is often used to characterize highway by geological disaster influence degree, because of geological disaster scale, frequency is broken out
The difference of rate etc. so that even the section of identical disaster dot density, it is not identical by disaster effect yet
, some even difference are very big.
In consideration of it, need it is a kind of can the method that is influenceed on highway communication of quantitative description geological disaster, can be to difference
Highway, different sections carry out quantization comparison, and more information is provided so as to route selection of being gone on a journey in the big data epoch to visitor.
The content of the invention
The present invention is directed to the problem of being not directed in the prior art to highway communication by geological disaster influence degree qualitative assessment,
A kind of quantitative evaluating method based on the geological disaster of traffic accessibility to highway communication influence degree is provided.The present invention is for public affairs
The quantitative assessment that road traffic is influenceed by geological disaster, the influence degree for quantitative response geological disaster to highway communication.
The present invention concrete scheme be：
Quantitative evaluating method based on the geological disaster of traffic accessibility to highway communication influence degree, methods described include following
Step：
1）It is determined that influence the main Source market of tourist attraction highway communication and assess area's scope；
2）Each main Source market highway communication passenger flow proportion is determined, as each main Source market passenger in weight calculation area
Reach the highway communication accessibility at sight spot；
3）The weight of each geological disaster factor of influence in area is determined, selects key index and the classification of each factor of influence, is utilized
GIS software calculates geological hazard dangerous and subregion；
4）Geological hazard dangerous value in the range of both sides of highway 200m is assigned to the highway of correspondent section, as weight, and in geology
The highway communication accessibility that each main Source market reaches sight spot is calculated under the conditions of disaster weighing factor is existing；
5）By the highway communication under being participated in without the highway communication accessibility under the influence of geological disaster and with geological disaster weighing factor
Accessibility is divided by, and obtains qualitative assessment value of the geological disaster to highway in scenic resort traffic impact degree, so as to geological disaster to trip
Swim highway in scenic resort traffic impact degree and carry out quantitative assessment.
Relative to prior art, the invention has the advantages that and effect：
1st, method provided by the invention is based on highway communication accessibility method, using highway by the geological hazard dangerous in area as power
Weight, so that the ratio of highway communication accessibility as parameter, carries out quantitatively evaluating in area before and after the influence for considering geological disaster；
2nd, method provided by the invention is carried out on the basis of traditional Regional Geological Hazard Risk Assessment method, and is somebody's turn to do
Method uses extensive, maturation；
3rd, compared with currently used for qualitative evaluating method of the highway by the disaster point distribution density of geological disaster influence degree, this is commented
Valency method has the characteristics of quantification, and influence journey of the geological disaster to highway communication can be just reflected by a parameter
Degree；
4th, this evaluation method also has the characteristics of can standardizing, using unified geological disaster hazard zonation method, most
The evaluating can standardization obtained afterwards, so as to carry out lateral comparison, this is that conventional evaluation method cannot accomplish
's.
Brief description of the drawings
Fig. 1 geological hazard dangerous is classified and assessing zonings step；
Fig. 2 does not consider the highway communication accessibility calculation procedure that geological disaster influences；
Highway communication accessibility calculation procedure under the influence of Fig. 3 geological disasters；
Calculation procedures of the Fig. 4 based on the geological disaster of traffic accessibility to highway communication disturbance degree.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Fig. 2 based on the geological disaster of traffic accessibility to the quantitative evaluating method bag of highway communication influence degree
Include following steps：
1）Investigated according to scenic spot visitor source, obtain the quantity of each main visitor source place visitor in area, wherein airport, railway station
Also the Source market of highway communication is considered, feelings are distributed according to primary highway in area by the domestic visitors that highway communication reaches more at a distance
Condition is estimated；
2）The domestic visitors ratio at scenic spot is reached as traveller's geological measuring, zoning by highway using each main visitor source place in area
Interior each Source market reaches the highway communication accessibility at scenic spot, and calculation formula is：
In formula,AFor the weighted mean travel time in each main Source market highway transportation network in area, its value is lower to be shown to reach
The time at sight spot is shorter, and accessibility is better；T i For the most short hourage of each Source market to sight spot,M i For the quality of each Source market,
The ratios of total domestic visitors is accounted for as weight using each Source market visitor quantity；
3）Pair determine scope of assessment carry out geological hazard dangerous subregion；
1. determining for describing the index for the regular factor for influenceing Development of Geological Hazards, and it is classified：
Influenceing the regular factor of geological disaster includes formation lithology, geological structure, neotectonics activity, landform, precipitation etc., and characterizes
The parameter of these features may have a variety of, influence intensity and mode of the correlation factor of combining closely to geological disaster, most can select
The following parameter of effect of these factors in geological disaster activity is characterized, and carries out scalar quantization, rank is more high then more favourable
In the formation and development of geological disaster：
Rock decay coefficient：General rock lithology is weaker, is more easy to weathering.Lithology is divided into hard, medium and weak three class.
Hard rock class using limestone, quartzite as representative is not easy weathering off.Soft rock class using the 4th system and mud shale, phyllite as representative,
Weathering is deep, block is tiny, and corrosion stability is poor, easily becomes the material source of geological disaster.With sandstone, granite, metamorphic rock class
Based on medium hard rock class its effect occupy between soft rock and hard rock.Assignment is carried out to different type rock respectively accordingly, it is soft
Rock class takes 10, and middle rock class takes 5, and hard rock class takes 3；
Tomography influences coefficient：The area passed through is generally broken, rock crushing, stress concentration, is advantageous to the generation of geological disaster, can
Influence of the Geologic Structure Feature to Development of Geological Hazards is characterized with the distribution and influence of fracture belt（Table 1）；
The coverage and value list of the different stage fracture belt of table 1
Neotectonics activity coefficient：Earthquake is the strong form of expression of neotectonic movement, its influence to earth's surface mainly using earthquake intensity as
Parameter is characterized, and earthquake motion peak acceleration is converted by earthquake intensity value to come, therefore available earthquake motion peak value accelerates
Spend to characterize influence of the seismic activity to earth's surface（Table 2）；
The seismic influence coefficient table of table 2
| Earthquake motion peak acceleration | >0.4 | 0.3 | 0.2 | 0.15 | 0.1 |
| Influence coefficient | 10 | 7 | 4 | 2 | 1 |
Influence of topography coefficient：Breaking topography, the area that cutting is strong, the steep ditch in slope is anxious, relative relief is big, can be provided for geological disaster
Sufficient energy condition.Orographic condition influences the generation of geological disaster at two aspects of relative relief and the gradient, and relative relief is
Geological disaster occurs to provide energy condition, and terrain slope is then the principal element that Rock And Soil potential energy converts to kinetic energy.The general gradient
Big local relative relief is also larger, so choosing this parameter of the gradient to characterize features of terrain（Table 3）；
The gradient criteria for classification of table 3 and assignment
Rainfall Influence coefficient：Precipitation is not only that the generation of geological disaster provides water condition, even more the geology calamity such as mud-rock flow, landslide
Harmful excitation condition.Root is it was found that the precipitation excited as liquid form of most of geological disasters, i.e. rainfall, therefore selects more
Mean annual precipitation total value is parameter（Table 4）；
The assignment of the mean annual precipitation of table 4
| Assignment | 3 | 5 | 7 | 9 | 10 |
| Mean annual precipitation | <300 | 300-450 | 450-600 | 600-750 | >750 |
2. calculating the weighted sum of geological disaster routine factor of influence, geological hazard dangerous value is drawnRc, and be classified：
Determined to influence the weight of each regular factor of geological disaster with analytic hierarchy process (AHP) firstW i （Table 5）；Then evaluation will be intended
Region division into grid, it is determined that in each grid each geological disaster factor of influence characterization parameter rank valueBc i , finally use
Equation below obtains the weighted sum of each grid：
The dangerous each factor of influence weight calculated of table 5
4）Geological hazard dangerous value in the range of the m of both sides of highway 200 is assigned to the highway of correspondent section, as weight, and in geology
The highway communication accessibility that each main Source market reaches sight spot is calculated under the conditions of disaster weighing factor is existing, calculation formula is：
In formula,A R For the highway communication accessibility in each main Source market highway transportation network in area under the influence of geological disaster；T i
For the most short hourage of each Source market to sight spot,M i For the quality of each Source market,C i For the geological hazard dangerous value of highway；
5）By without the highway communication accessibility under the influence of geological disaster（A）Handed over the highway under being participated in geological disaster weighing factor
Logical accessibility（A C ）It is divided by, obtains geological disaster to highway in scenic resort traffic impact index（R）, calculation formula is：
The physical significance of this value is highway communication accessibility under the influence of geological disaster（It is averaged hourage）It is no geological disaster
Under the influence of highway communication accessibility multiple.
Geological disaster is geological disaster to highway in scenic resort traffic impact index to tourist attractions highway communication influence degree
Quantitative assessment value, expression be under the influence of geological disaster, highway communication reach scenic spot average time compare equal conditions
The multiple of average time during lower no geological disaster, numerical value is higher, represents that geological disaster is bigger to the influence degree of highway communication, extremely
This completes the qualitative assessment based on the geological disaster of traffic accessibility to highway communication influence degree.
Quantitative evaluating method of the geological disaster to highway communication influence degree is provided according to the present invention, to tourist attractions by ground
Matter disaster influence degree is assessed.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than it is applied pending
Protection domain limitation, although the present invention is described in detail with reference to above-described embodiment, the common skill of art
Art personnel still can carry out various modifications or equivalent substitution to the embodiment of the present invention, and these are without departing from the present invention
Any modification of spirit and scope or equivalent substitution all should cover in the pending right of the application of the present invention
Within.
Claims (3)
1. geological disaster is to the quantitative evaluation method of tourist attraction highway communication influence degree, its feature be using it is conventional, into
Disasters danger subregion is held on ripe ground, and by Highway house in section pair geology calamity danger degree value as calculating highway communication accessibility
Weight, so as to calculate the highway communication accessibility that scenic spot is reached under the influence of geological disaster, by it with not considering that geological disaster influences
Sight spot highway communication accessibility be divided by, obtain geological disaster to reach sight spot highway communication Intrusion Index, thereby using this
One parameter expression geological disaster mainly includes the following steps that to the influence degree of highway communication：
1）It is determined that influence the main Source market and scope of assessment of tourist attraction highway communication；
2）Each main traveller area's highway communication passenger flow proportion is determined, as each main Source market passenger in weight calculation area
Reach the highway communication accessibility at sight spot；
3）The weight of each geological disaster factor of influence in area is determined, selects key index and the classification of each factor of influence, is utilized
GIS software calculates geological hazard dangerous and subregion；
4）Geological hazard dangerous value in the range of the m of both sides of highway 200 is assigned to the highway of correspondent section, as weight, and in geology
The highway communication accessibility that each main Source market reaches sight spot is calculated under the conditions of disaster weighing factor is existing；
5）By the highway communication under being participated in without the highway communication accessibility under the influence of geological disaster and with geological disaster weighing factor
Accessibility is divided by, and obtains geological disaster to highway in scenic resort traffic impact index；
The index that the geological disaster influences highway communication is Intrusion Index；
R= A
C
/ A
Wherein,RIt is geological disaster to highway in scenic resort traffic impact index,ATo be reachable without the highway communication under the influence of geological disaster
Property,A C Highway communication accessibility under being participated in for geological disaster weighing factor.
2. geological disaster as claimed in claim 1 is evaluated the Intrusion Index of highway communication, it is characterised in that step 4）It is middle to incite somebody to action
Step 3）Obtained geological hazard dangerous value gives corresponding highway division as weight, in bar existing for geological disaster weighing factor
The highway communication accessibility that each main Source market reaches sight spot is calculated under part.
3. evaluation method as claimed in claim 1, it is characterised in that step 5）Middle geological disaster is to highway communication Intrusion Index
Evaluation method be：By the public affairs under being participated in without the highway communication accessibility under the influence of geological disaster and with geological disaster weighing factor
Road traffic accessibility is divided by, and so as to obtain geological disaster to highway communication Intrusion Index, numerical value is higher, represents geological disaster to public affairs
The influence degree of road traffic is bigger.
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Cited By (2)
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| CN115796404A (en) * | 2022-11-10 | 2023-03-14 | 国网江苏省电力有限公司营销服务中心 | Power utilization prediction method and system for agent electricity purchasing users |
| CN117036136A (en) * | 2023-08-17 | 2023-11-10 | 应急管理部国家自然灾害防治研究院 | Emergency shelter accessibility determination method |
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| US20100174482A1 (en) * | 2007-06-27 | 2010-07-08 | Honda Motor Co., Ltd. | Navigation server |
| JP2013080272A (en) * | 2011-09-30 | 2013-05-02 | Sumitomo Electric Ind Ltd | Traffic evaluation device, computer program, and traffic evaluation method |
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| CN115796404A (en) * | 2022-11-10 | 2023-03-14 | 国网江苏省电力有限公司营销服务中心 | Power utilization prediction method and system for agent electricity purchasing users |
| CN117036136A (en) * | 2023-08-17 | 2023-11-10 | 应急管理部国家自然灾害防治研究院 | Emergency shelter accessibility determination method |
| CN117036136B (en) * | 2023-08-17 | 2024-02-20 | 应急管理部国家自然灾害防治研究院 | Emergency shelter accessibility determination method |
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