CN115048700B - Construction project construction feasibility analysis and assessment method based on multidimensional data - Google Patents
Construction project construction feasibility analysis and assessment method based on multidimensional data Download PDFInfo
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Abstract
The invention discloses a construction project engineering construction feasibility analysis and assessment method based on multi-dimensional data.
Description
Technical Field
The invention relates to the field of engineering construction safety evaluation, in particular to a construction project engineering construction feasibility analysis and evaluation method based on multidimensional data.
Background
With the rapid development of economy, urban traffic problems are becoming an increasing focus of attention as urban population increases greatly, so that many cities build viaducts in areas with traffic congestion in order to alleviate driving pressure. However, when the viaduct is erected, the bridge pier is required to be firstly constructed to jack up the bridge. Therefore, before the construction of the viaduct, the feasibility of bridge pier construction in the viaduct needs to be analyzed, so that the safety of the construction quality of the viaduct can be ensured to the greatest extent.
At present, the existing viaduct pier construction feasibility analysis method only carries out single-dimensional analysis on traffic data of a region to be constructed, influences of soil geological conditions and climatic environment conditions of the region to be constructed on the viaduct pier construction feasibility are ignored, for the soil geological conditions, soil settlement of the region to be constructed can cause potential quality hazards of later-stage road viaducts, for the climatic environment conditions, the higher frequency of the designated wind power level in the region to be constructed is, the greater the influence on stability of the piers is, and therefore the worse the soil geological conditions and the climatic environment conditions of the region to be constructed are, the viaduct pier construction feasibility analysis method of the single-dimensional viaduct pier cannot realize comprehensive analysis on the viaduct pier construction feasibility, so that accuracy and reliability of the viaduct pier construction feasibility analysis result are reduced, the potential quality safety of later-stage road viaducts is further greatly threatened, public property loss is further caused, even serious traffic accidents are caused, the potential safety hazards of the viaduct are greatly reduced, and the problem of great quality and physical construction engineering can be greatly damaged is solved, and the construction feasibility is estimated based on the large-dimensional data of the viaduct pier construction engineering construction feasibility is greatly.
Disclosure of Invention
In view of the problems in the prior art, the invention provides a method for analyzing and evaluating the feasibility of construction project engineering based on multi-dimensional data, which solves the problems in the background art.
In order to achieve the above and other objects, the present invention adopts the following technical scheme:
a method for analyzing and evaluating the feasibility of construction of a foundation project based on multi-dimensional data comprises the following steps:
s1, acquiring a soil settlement index of a pre-construction area: the soil settlement values of each historical age in the pre-construction area of each pier in the pre-construction road viaduct are obtained from the regional historical soil investigation database, and soil settlement indexes corresponding to the pre-construction area of each pier in the pre-construction road viaduct are obtained;
s2, analyzing soil influence weights of the pre-construction areas: detecting soil parameters in a pre-construction area of each pier in the pre-construction road viaduct, and analyzing soil influence weight coefficients of the corresponding pre-construction area of each pier in the pre-construction road viaduct;
s3, statistics of historical driving vehicle data: extracting historical driving vehicle data of each pier corresponding to a target construction area in the pre-built road viaduct in the last year, and counting the maximum vehicle flow of each pier corresponding to the target construction area in the pre-built road viaduct in the last year and the average driving quantity ratio of each type of vehicle every day;
s4, analyzing traffic influence weights of the target construction areas: obtaining the estimated load capacity corresponding to each pier in the pre-constructed road viaduct according to the standard nuclear load capacity of the preset vehicles of various types, and analyzing the traffic influence weight coefficient of each pier in the pre-constructed road viaduct corresponding to the target construction area;
s5, extracting historical wind power grade data: extracting occurrence frequency of each wind power level in the history period in the area where the pre-constructed road viaduct is located, screening and analyzing occurrence frequency of each appointed wind power level in the history period in the area where the pre-constructed road viaduct is located;
s6, analyzing environmental impact weights of the target construction areas: acquiring the planned construction height and the planned construction cross-sectional area of each pier in the pre-constructed road viaduct according to the project engineering construction plan of the road viaduct, and analyzing the environmental impact weight coefficient of each pier in the pre-constructed road viaduct corresponding to the target construction area;
s7, evaluating a pier construction feasibility index: and evaluating the comprehensive construction feasibility index of each pier in the pre-constructed road viaduct, and carrying out corresponding treatment according to the comparison analysis result.
In one possible design, the step S1 obtains a soil settlement index corresponding to a pre-construction area of each pier in the pre-construction road viaduct, and specifically includes the following steps:
acquiring a pre-construction area of each pier in the pre-constructed road viaduct according to a project engineering construction plan of the road viaduct, adjusting soil settlement values of each history period in the pre-construction area of each pier in the pre-constructed road viaduct from a regional history soil investigation database, and marking the soil settlement values of each history period in the pre-construction area of each pier in the pre-constructed road viaduct as c i t j I=1, 2,..n, i is denoted as the i-th pier, j=1, 2,..m, j is denoted as the j-th history age;
analyzing soil sedimentation index epsilon corresponding to pre-construction area of each pier in pre-construction road viaduct i Wherein each pier in the road viaduct is pre-constructedThe soil sedimentation index calculation formula corresponding to the pre-construction area is as follows
Mu is expressed as soil settlement index influence factor, m is expressed as total history period of retrieval, c Label (C) Expressed as a preset safe soil settlement value.
In one possible design, the soil parameters in the pre-construction area of each pier in the pre-construction road viaduct are detected in the step S2, and the specific detection mode is as follows:
collecting images of pre-construction areas of the piers in the pre-construction road viaduct, comparing to obtain soil types in the pre-construction areas of the piers in the pre-construction road viaduct, extracting preset influence indexes corresponding to the soil types of all types, screening the influence indexes corresponding to the soil types in the pre-construction areas of the piers in the pre-construction road viaduct, and recording the influence indexes corresponding to the soil types in the pre-construction areas of the piers in the pre-construction road viaduct as delta i a 1 ；
Detecting the water content of soil in the pre-construction area of each pier in the pre-construction road viaduct, and marking the water content of soil in the pre-construction area of each pier in the pre-construction road viaduct as p i a 2 ；
Detecting the soil bearing capacity in the pre-construction area of each pier in the pre-construction road viaduct, and marking the soil bearing capacity in the pre-construction area of each pier in the pre-construction road viaduct as p i a 3 。
In one possible design, the step S2 is to analyze a soil influence weight coefficient of each pier corresponding to the pre-construction area in the pre-construction road viaduct, and the specific analysis method is as follows:
substituting soil sedimentation indexes and soil parameters corresponding to pre-construction areas of all piers in a pre-construction road viaduct into a formula
Obtaining soil influence weight coefficient xi of each pier corresponding to the pre-construction area in the pre-construction road viaduct i Wherein gamma is 1 、γ 2 、γ 3 、γ 4 Respectively expressed as preset influence factors corresponding to soil sedimentation, soil type, soil water content and soil bearing capacity, p Label (C) a 2 And p Label (C) a 3 Respectively expressed as the preset standard soil moisture content and standard soil bearing capacity delta p' a in the construction area of the bridge pier of the viaduct 2 And Δp' a 3 Respectively expressed as a preset soil moisture content allowable error value and a preset soil bearing capacity allowable error value.
In one possible design, the specific detailed steps corresponding to the step S3 are as follows:
acquiring a pre-construction area where each pier is located in a pre-construction road viaduct according to a project engineering construction plan of the road viaduct, marking the pre-construction area where each pier is located in the pre-construction road viaduct as a target construction area, extracting historical driving vehicle data of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct from an area historical traffic database, counting the vehicle flow of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct, screening the maximum vehicle flow of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct, and marking the maximum vehicle flow of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct as L max b i ；
According to historical driving vehicle data of each pier corresponding to a target construction area in the viaduct of the pre-constructed road in each day of the last year, the driving quantity of each type of vehicle in each pier corresponding to the target construction area in the viaduct of the pre-constructed road in each day of the last year is counted, the average driving quantity proportion of each type of vehicle in each pier corresponding to the target construction area in the viaduct of the pre-constructed road in each day of the last year is obtained through an average value calculation formula, and the average driving quantity proportion of each type of vehicle in each pier corresponding to the target construction area in the viaduct of the pre-constructed road in each day of the last year is marked as
f＝1,V, f is denoted as type f vehicle.
In one possible design, the step S4 is to analyze a traffic impact weight coefficient of each pier corresponding to the target construction area in the pre-constructed viaduct, and specifically includes:
extracting standard nuclear load capacity of preset vehicles of various types, substituting maximum traffic flow and average running number ratio of vehicles of various types in each pier corresponding to a target construction area in a pre-built road viaduct into a formula in nearly one year
Obtaining the estimated load capacity g corresponding to the pre-built road overhead bridge Estimation of b i θ is the load capacity compensation coefficient of the road overhead bridge, G' f Standard nuclear load capacity, denoted as f-type vehicle;
analyzing traffic influence weight coefficient of corresponding target construction area of each pier in pre-constructed road viaduct
β 1 And beta 2 Respectively expressed as preset traffic influencing factors, I Presetting And g Presetting The preset maximum traffic flow and the preset safety nuclear load capacity of the pre-built road viaduct in the project engineering construction plan of the road viaduct are respectively represented, and the preset traffic flow allowable error value and the preset nuclear load capacity allowable error value are respectively represented by delta I 'and delta g'.
In one possible design, the specific detailed steps corresponding to the step S5 are as follows:
extracting the occurrence frequency of each wind power grade in the history of the area where the pre-constructed road viaduct is located from a regional history meteorological database, recording the wind power grade which is larger than the preset safety wind power grade as a designated wind power grade, comparing and screening the occurrence frequency of each designated wind power grade in the history of the area where the pre-constructed road viaduct is located, and analyzing according to a frequency calculation formula to obtain the occurrence frequency phi of each designated wind power grade in the history of the area where the pre-constructed road viaduct is located r ，r＝1Y, r is denoted as the r-th designated wind rating.
In one possible design, the step S6 is to analyze the environmental impact weight coefficient of each pier corresponding to the target construction area in the pre-constructed viaduct, and the specific analysis method is as follows:
acquiring the planned construction height of each pier in the pre-constructed road viaduct according to the project engineering construction plan of the road viaduct, and marking the planned construction height of each pier in the pre-constructed road viaduct as h i ；
Acquiring the planned construction cross-sectional area of each pier in the pre-constructed road viaduct according to the project engineering construction plan of the road viaduct, and marking the planned construction cross-sectional area of each pier in the pre-constructed road viaduct as s i ；
Analyzing environmental impact weight coefficients of corresponding target construction areas of piers in pre-constructed road viaduct
λ r Expressed as a safety impact index, sigma, corresponding to the r-th specified wind level 1 Sum sigma 2 Respectively expressed as preset environmental impact factors, H r ' is expressed as the preset overhead pier safety height corresponding to the r-th designated wind power level, S r ' is expressed as the preset overhead pier safety cross-sectional area corresponding to the r-th designated wind power level.
In one possible design, the step S7 evaluates the comprehensive construction feasibility index of each pier in the pre-constructed viaduct, specifically by the following evaluation method:
soil influence weight coefficient xi of each pier corresponding to pre-construction area in pre-construction road viaduct i Traffic influence weight coefficient of each pier corresponding to target construction area
Environmental impact weight coefficient of each pier corresponding to target construction area
Substitution evaluationFormula->
Obtaining the comprehensive construction feasibility index omega of each pier in the viaduct of the pre-constructed road i Wherein eta 1 、η 2 、η 3 Respectively expressed as a preset construction feasibility influence factor.
In one possible design, the step S7 performs corresponding processing according to the comparison analysis result, and specifically includes:
comparing the comprehensive construction feasibility index of each pier in the pre-constructed road viaduct with a preset threshold value of the construction feasibility index of the viaduct, and if the comprehensive construction feasibility index of a pier in the pre-constructed road viaduct is smaller than the preset threshold value of the construction feasibility index of the viaduct, indicating that the construction feasibility of the pier in the pre-constructed road viaduct does not meet the standard, and carrying out corresponding early warning reminding.
As described above, the method for analyzing and evaluating the feasibility of the project construction of the foundation project based on the multidimensional data has the following advantages:
according to the construction project engineering construction feasibility analysis and assessment method based on the multidimensional data, the construction feasibility index of each pier in the pre-construction road viaduct is assessed according to the soil influence weight coefficient, the traffic influence weight coefficient and the environment influence weight coefficient of each pier corresponding to the pre-construction region in the pre-construction road viaduct and is correspondingly processed according to the comparison analysis result, so that the construction feasibility of the viaduct pier is comprehensively analyzed by the multidimensional data, the accuracy and the reliability of the construction feasibility analysis result of the viaduct pier are further improved, the quality safety of the later-stage road viaduct is guaranteed, the service life of the viaduct is greatly guaranteed, the loss of public property is further avoided, meanwhile, important traffic accidents caused by the construction can be effectively avoided, the potential safety hazard of the later stage is reduced, and the physical and mental health of people is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of the method of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 shows a method for evaluating feasibility of construction project engineering based on multidimensional data, which comprises the following steps:
s1, acquiring a soil settlement index of a pre-construction area: and (3) the soil settlement values of each historical age in the pre-construction area of each pier in the pre-construction road viaduct are obtained from the regional historical soil investigation database, and the soil settlement index corresponding to the pre-construction area of each pier in the pre-construction road viaduct is obtained.
In the preferred technical scheme of the application, the soil settlement index corresponding to the pre-construction area of each pier in the pre-construction road viaduct is obtained in the step S1, and the specific detailed steps are as follows:
acquiring a pre-construction area of each pier in the pre-constructed road viaduct according to a project engineering construction plan of the road viaduct, adjusting soil settlement values of each history period in the pre-construction area of each pier in the pre-constructed road viaduct from a regional history soil investigation database, and marking the soil settlement values of each history period in the pre-construction area of each pier in the pre-constructed road viaduct as c i t j ，i＝1,2,...,nI is denoted as the i-th pier, j=1, 2,..m, j is denoted as the j-th history age;
analyzing soil sedimentation index epsilon corresponding to pre-construction area of each pier in pre-construction road viaduct i Wherein the calculation formula of the soil settlement index corresponding to the pre-construction area of each pier in the pre-construction road viaduct is as follows
Mu is expressed as soil settlement index influence factor, m is expressed as total history period of retrieval, c Label (C) Expressed as a preset safe soil settlement value.
S2, analyzing soil influence weights of the pre-construction areas: and detecting and obtaining soil parameters in the pre-construction area of each pier in the pre-construction road viaduct, and analyzing soil influence weight coefficients of the corresponding pre-construction area of each pier in the pre-construction road viaduct.
In the preferred technical scheme of the application, the soil parameters in the pre-construction area of each pier in the pre-construction road viaduct are detected in the step S2, and the specific detection mode is as follows:
image acquisition is carried out on the pre-construction area of each pier in the pre-construction road viaduct through a high-definition camera to obtain soil images in the pre-construction area of each pier in the pre-construction road viaduct, the soil types in the pre-construction area of each pier in the pre-construction road viaduct are obtained through comparison, the influence indexes corresponding to the preset soil types are extracted, the influence indexes corresponding to the soil types in the pre-construction area of each pier in the pre-construction road viaduct are screened, and the influence indexes corresponding to the soil types in the pre-construction area of each pier in the pre-construction road viaduct are recorded as delta i a 1 ；
Detecting the water content of soil in the pre-construction area of each pier in the pre-construction road viaduct by a soil water content detector, and marking the water content of soil in the pre-construction area of each pier in the pre-construction road viaduct as p i a 2 ；
Soil bearing capacity in a pre-construction area of each pier in a pre-construction road viaduct is detected through a foundation bearing capacity detector, and the pre-construction is performedLet the soil bearing capacity in the pre-construction area of each pier in the road viaduct be p i a 3 。
Further, the obtaining the soil type in the pre-construction area of each pier in the pre-construction road viaduct by the medium contrast specifically comprises the following steps:
comparing the soil image in the pre-construction area of each pier in the pre-construction road viaduct with the standard image corresponding to the preset soil of each type, counting the similarity of the soil image in the pre-construction area of each pier in the pre-construction road viaduct and the standard image corresponding to the soil of each type, comparing and screening the soil type with the highest similarity of the soil image in the pre-construction area of each pier in the pre-construction road viaduct, and marking the soil type as the soil type in the pre-construction area of each pier in the pre-construction road viaduct.
In the preferred technical scheme of the application, in the step S2, soil influence weight coefficients of the pre-construction areas corresponding to the piers in the pre-construction road viaduct are analyzed, and the concrete analysis mode is as follows:
substituting soil sedimentation indexes and soil parameters corresponding to pre-construction areas of all piers in a pre-construction road viaduct into a formula
Obtaining soil influence weight coefficient xi of each pier corresponding to the pre-construction area in the pre-construction road viaduct i Wherein gamma is 1 、γ 2 、γ 3 、γ 4 Respectively expressed as preset influence factors corresponding to soil sedimentation, soil type, soil water content and soil bearing capacity, p Label (C) a 2 And p Label (C) a 3 Respectively expressed as the preset standard soil moisture content and standard soil bearing capacity delta p' a in the construction area of the bridge pier of the viaduct 2 And Δp' a 3 Respectively expressed as a preset soil moisture content allowable error value and a preset soil bearing capacity allowable error value.
S3, statistics of historical driving vehicle data: and extracting historical driving vehicle data of each pier corresponding to a target construction area in the pre-constructed road viaduct in the last year, and counting the maximum vehicle flow of each pier corresponding to the target construction area in the pre-constructed road viaduct in the last year and the average driving quantity ratio of each type of vehicle every day.
In a preferred technical solution of the present application, the specific detailed steps corresponding to the step S3 are as follows:
acquiring a pre-construction area where each pier is located in a pre-construction road viaduct according to a project engineering construction plan of the road viaduct, marking the pre-construction area where each pier is located in the pre-construction road viaduct as a target construction area, extracting historical driving vehicle data of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct from an area historical traffic database, counting the vehicle flow of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct, screening the maximum vehicle flow of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct, and marking the maximum vehicle flow of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct as L max b i ；
According to historical driving vehicle data of each pier corresponding to a target construction area in the viaduct of the pre-constructed road in each day of the last year, the driving quantity of each type of vehicle in each pier corresponding to the target construction area in the viaduct of the pre-constructed road in each day of the last year is counted, the average driving quantity proportion of each type of vehicle in each pier corresponding to the target construction area in the viaduct of the pre-constructed road in each day of the last year is obtained through an average value calculation formula, and the average driving quantity proportion of each type of vehicle in each pier corresponding to the target construction area in the viaduct of the pre-constructed road in each day of the last year is marked as
f=1, 2.
Further, the above-mentioned types of vehicles include, but are not limited to: large passenger vehicles, traction trucks, city buses, medium passenger buses, heavy trucks, medium trucks and small passenger vehicles.
S4, analyzing traffic influence weights of the target construction areas: and obtaining the estimated load capacity corresponding to each pier in the pre-constructed road viaduct according to the standard nuclear load capacity of the preset vehicles of various types, and analyzing the traffic influence weight coefficient of each pier in the pre-constructed road viaduct corresponding to the target construction area.
In the preferred technical scheme of the present application, the step S4 of analyzing the traffic influence weight coefficient of each pier corresponding to the target construction area in the pre-constructed road viaduct specifically includes:
extracting standard nuclear load capacity of preset vehicles of various types, substituting maximum traffic flow and average running number ratio of vehicles of various types in each pier corresponding to a target construction area in a pre-built road viaduct into a formula in nearly one year
Obtaining the estimated load capacity g corresponding to the pre-built road overhead bridge Estimation of b i θ is the load capacity compensation coefficient of the road overhead bridge, G' f Standard nuclear load capacity, denoted as f-type vehicle;
analyzing traffic influence weight coefficient of corresponding target construction area of each pier in pre-constructed road viaduct
β 1 And beta 2 Respectively expressed as preset traffic influencing factors, I Presetting And g Presetting The preset maximum traffic flow and the preset safety nuclear load capacity of the pre-built road viaduct in the project engineering construction plan of the road viaduct are respectively represented, and the preset traffic flow allowable error value and the preset nuclear load capacity allowable error value are respectively represented by delta I 'and delta g'.
S5, extracting historical wind power grade data: the occurrence frequency of each wind power grade in the history period of the area where the pre-constructed road viaduct is located is extracted, and the occurrence frequency of each appointed wind power grade in the history period of the area where the pre-constructed road viaduct is located is screened and analyzed.
In a preferred technical solution of the present application, the specific detailed steps corresponding to the step S5 are as follows:
extracting the occurrence frequency of each wind power grade in the history of the area where the pre-constructed road viaduct is located from a regional history meteorological database, recording the wind power grade which is larger than the preset safety wind power grade as a designated wind power grade, comparing and screening the occurrence frequency of each designated wind power grade in the history of the area where the pre-constructed road viaduct is located, and analyzing according to a frequency calculation formula to obtain the occurrence frequency phi of each designated wind power grade in the history of the area where the pre-constructed road viaduct is located r R=1, 2,..y, r is denoted as the r-th designated wind level.
Further, the historical years of the area where the pre-constructed road viaduct is located are the historical years of the last ten years.
Further, the frequency of occurrence calculation formula of each appointed wind power grade in the history years in the area where the pre-built road viaduct is located is as follows
Wherein x is r The occurrence frequency of the r-th specified wind power level in the history period is expressed in the area where the pre-constructed road viaduct is located.
S6, analyzing environmental impact weights of the target construction areas: and acquiring the planned construction height and the planned construction cross-sectional area of each pier in the pre-constructed road viaduct according to the project engineering construction plan of the road viaduct, and analyzing the environmental impact weight coefficient of each pier in the pre-constructed road viaduct corresponding to the target construction area.
In the preferred technical scheme of the application, the step S6 is to analyze the environmental impact weight coefficient of each pier corresponding to the target construction area in the pre-constructed viaduct, and the specific analysis mode is as follows:
acquiring the planned construction height of each pier in the pre-constructed road viaduct according to the project engineering construction plan of the road viaduct, and marking the planned construction height of each pier in the pre-constructed road viaduct as h i ；
Acquiring planned construction cross-sectional areas of all piers in the pre-constructed viaduct according to project engineering construction plans of the viaductMarking the planned construction cross-sectional area of each pier in the pre-constructed road viaduct as s i ；
Analyzing environmental impact weight coefficients of corresponding target construction areas of piers in pre-constructed road viaduct
λ r Expressed as a safety impact index, sigma, corresponding to the r-th specified wind level 1 Sum sigma 2 Respectively expressed as preset environmental impact factors, H r ' is expressed as the preset overhead pier safety height corresponding to the r-th designated wind power level, S r ' is expressed as the preset overhead pier safety cross-sectional area corresponding to the r-th designated wind power level.
S7, evaluating a pier construction feasibility index: and evaluating the comprehensive construction feasibility index of each pier in the pre-constructed road viaduct, and carrying out corresponding treatment according to the comparison analysis result.
In the preferred technical scheme of the application, the step S7 evaluates the comprehensive construction feasibility index of each pier in the pre-constructed road viaduct in a specific evaluation mode as follows:
soil influence weight coefficient xi of each pier corresponding to pre-construction area in pre-construction road viaduct i Traffic influence weight coefficient of each pier corresponding to target construction area
Environmental impact weight coefficient of each pier corresponding to target construction area
Substitution evaluation formula +.>
Obtaining the comprehensive construction feasibility index omega of each pier in the viaduct of the pre-constructed road i Wherein eta 1 、η 2 、η 3 Respectively expressed as a preset construction feasibility influence factor.
In a preferred technical solution of the present application, the step S7 performs corresponding processing according to a comparison analysis result, and specifically includes:
comparing the comprehensive construction feasibility index of each pier in the pre-constructed road viaduct with a preset threshold value of the construction feasibility index of the viaduct, and if the comprehensive construction feasibility index of a pier in the pre-constructed road viaduct is smaller than the preset threshold value of the construction feasibility index of the viaduct, indicating that the construction feasibility of the pier in the pre-constructed road viaduct does not meet the standard, and carrying out corresponding early warning reminding.
In the embodiment, the construction feasibility index of each pier in the pre-constructed road viaduct is estimated according to the soil influence weight coefficient, the traffic influence weight coefficient and the environment influence weight coefficient of each pier corresponding to the pre-constructed region in the pre-constructed road viaduct and is correspondingly processed according to the comparison analysis result, so that the construction feasibility of the viaduct pier is comprehensively analyzed by multi-dimensional data, the accuracy and the reliability of the construction feasibility analysis result of the viaduct pier are further improved, the quality safety of the later-stage road viaduct is guaranteed, the service life of the viaduct is greatly guaranteed, the loss of public property is further avoided, meanwhile, important traffic accidents are effectively avoided, the trip safety hidden danger of later stages is reduced, and the physical and psychological health of people is guaranteed.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.
Claims (4)
1. The method for analyzing and evaluating the feasibility of the construction of the foundation project based on the multidimensional data is characterized by comprising the following steps:
s1, acquiring a soil settlement index of a pre-construction area: the soil settlement values of each historical age in the pre-construction area of each pier in the pre-construction road viaduct are obtained from the regional historical soil investigation database, and soil settlement indexes corresponding to the pre-construction area of each pier in the pre-construction road viaduct are obtained;
in the step S1, soil settlement indexes corresponding to pre-construction areas of all piers in the pre-construction road viaduct are obtained, and the concrete steps are as follows:
acquiring a pre-construction area of each pier in the pre-constructed road viaduct according to a project engineering construction plan of the road viaduct, adjusting soil settlement values of each history period in the pre-construction area of each pier in the pre-constructed road viaduct from a regional history soil investigation database, and marking the soil settlement values of each history period in the pre-construction area of each pier in the pre-constructed road viaduct as c i t j I=1, 2,..n, i is denoted as the i-th pier, j=1, 2,..m, j is denoted as the j-th history age;
analyzing soil sedimentation index epsilon corresponding to pre-construction area of each pier in pre-construction road viaduct i Wherein the calculation formula of the soil settlement index corresponding to the pre-construction area of each pier in the pre-construction road viaduct is as follows
Mu is expressed as soil settlement index influence factor, m is expressed as total history period of retrieval, c Label (C) Expressed as a preset safe soil settlement value;
s2, analyzing soil influence weights of the pre-construction areas: detecting soil parameters in a pre-construction area of each pier in the pre-construction road viaduct, and analyzing soil influence weight coefficients of the corresponding pre-construction area of each pier in the pre-construction road viaduct;
and S2, detecting soil parameters in a pre-construction area of each pier in the pre-construction road viaduct, wherein the concrete detection mode is as follows:
collecting images of pre-construction areas of the piers in the pre-construction road viaduct, comparing to obtain soil types in the pre-construction areas of the piers in the pre-construction road viaduct, extracting influence indexes corresponding to preset soil types, and screening the piers in the pre-construction road viaductThe influence index corresponding to the soil type in the pre-construction area of each pier in the pre-construction road viaduct is marked as delta i a 1 ；
Detecting the water content of soil in the pre-construction area of each pier in the pre-construction road viaduct, and marking the water content of soil in the pre-construction area of each pier in the pre-construction road viaduct as p i a 2 ；
Detecting the soil bearing capacity in the pre-construction area of each pier in the pre-construction road viaduct, and marking the soil bearing capacity in the pre-construction area of each pier in the pre-construction road viaduct as p i a 3 ；
In the step S2, soil influence weight coefficients of the bridge piers in the pre-construction road viaduct corresponding to the pre-construction area are analyzed, and the concrete analysis mode is as follows:
substituting soil sedimentation indexes and soil parameters corresponding to pre-construction areas of all piers in a pre-construction road viaduct into a formula
Obtaining soil influence weight coefficient xi of each pier corresponding to the pre-construction area in the pre-construction road viaduct i Wherein gamma is 1 、γ 2 、γ 3 、γ 4 Respectively expressed as preset influence factors corresponding to soil sedimentation, soil type, soil water content and soil bearing capacity, p Label (C) a 2 And p Label (C) a 3 Respectively expressed as the preset standard soil moisture content and standard soil bearing capacity delta p' a in the construction area of the bridge pier of the viaduct 2 And Δp' a 3 Respectively representing a preset soil water content allowable error value and a preset soil bearing capacity allowable error value; />
S3, statistics of historical driving vehicle data: extracting historical driving vehicle data of each pier corresponding to a target construction area in the pre-built road viaduct in the last year, and counting the maximum vehicle flow of each pier corresponding to the target construction area in the pre-built road viaduct in the last year and the average driving quantity ratio of each type of vehicle every day;
s4, analyzing traffic influence weights of the target construction areas: obtaining the estimated load capacity corresponding to each pier in the pre-constructed road viaduct according to the standard nuclear load capacity of the preset vehicles of various types, and analyzing the traffic influence weight coefficient of each pier in the pre-constructed road viaduct corresponding to the target construction area;
and S4, analyzing traffic influence weight coefficients of the corresponding target construction areas of the piers in the pre-constructed road viaduct, wherein the method specifically comprises the following steps:
extracting standard nuclear load capacity of preset vehicles of various types, substituting maximum traffic flow and average running number ratio of vehicles of various types in each pier corresponding to a target construction area in a pre-built road viaduct into a formula in nearly one year
Obtaining the estimated load capacity g corresponding to the pre-built road overhead bridge Estimation of b i θ is the load capacity compensation coefficient of the road overhead bridge, G' f Standard nuclear load capacity, denoted as f-type vehicle;
analyzing traffic influence weight coefficient of corresponding target construction area of each pier in pre-constructed road viaduct
β 1 And beta 2 Respectively expressed as preset traffic influencing factors, I Presetting And g Presetting Respectively representing a preset maximum traffic flow and a preset safety nuclear load capacity of a pre-built road viaduct in a project engineering construction plan of the road viaduct, wherein DeltaI 'and Deltag' respectively represent a preset traffic flow allowable error value and a preset nuclear load capacity allowable error value;
s5, extracting historical wind power grade data: extracting occurrence frequency of each wind power level in the history period in the area where the pre-constructed road viaduct is located, screening and analyzing occurrence frequency of each appointed wind power level in the history period in the area where the pre-constructed road viaduct is located;
s6, analyzing environmental impact weights of the target construction areas: acquiring the planned construction height and the planned construction cross-sectional area of each pier in the pre-constructed road viaduct according to the project engineering construction plan of the road viaduct, and analyzing the environmental impact weight coefficient of each pier in the pre-constructed road viaduct corresponding to the target construction area;
in the step S6, environmental impact weight coefficients of the corresponding target construction areas of the piers in the pre-built road viaduct are analyzed, and the concrete analysis mode is as follows:
acquiring the planned construction height of each pier in the pre-constructed road viaduct according to the project engineering construction plan of the road viaduct, and marking the planned construction height of each pier in the pre-constructed road viaduct as h i ；
Acquiring the planned construction cross-sectional area of each pier in the pre-constructed road viaduct according to the project engineering construction plan of the road viaduct, and marking the planned construction cross-sectional area of each pier in the pre-constructed road viaduct as s i ；
Analyzing environmental impact weight coefficients of corresponding target construction areas of piers in pre-constructed road viaduct
λ r Expressed as a safety impact index, sigma, corresponding to the r-th specified wind level 1 Sum sigma 2 Respectively expressed as preset environmental impact factors, H' r The preset overhead pier safety height corresponding to the r specified wind power level is represented as S' r The safety cross section area of the preset overhead pier corresponding to the r-th designated wind power level is shown;
s7, evaluating a pier construction feasibility index: evaluating the comprehensive construction feasibility index of each pier in the pre-constructed road viaduct, and carrying out corresponding treatment according to the comparison analysis result;
and S7, evaluating the comprehensive construction feasibility index of each pier in the pre-constructed road viaduct in the step of evaluating the comprehensive construction feasibility index, wherein the specific evaluation mode is as follows:
soil influence weight coefficient xi of each pier corresponding to pre-construction area in pre-construction road viaduct i Traffic influence weight coefficient of each pier corresponding to target construction area
Environment influence weight coefficient of each pier corresponding to target construction area +.>
Substitution evaluation formula +.>
Obtaining the comprehensive construction feasibility index omega of each pier in the viaduct of the pre-constructed road i Wherein eta 1 、η 2 、η 3 Respectively expressed as a preset construction feasibility influence factor.
2. The method for evaluating the feasibility of construction project engineering based on multi-dimensional data according to claim 1, wherein the method comprises the following steps: the specific detailed steps corresponding to the step S3 are as follows:
acquiring a pre-construction area where each pier is located in a pre-construction road viaduct according to a project engineering construction plan of the road viaduct, marking the pre-construction area where each pier is located in the pre-construction road viaduct as a target construction area, extracting historical driving vehicle data of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct from an area historical traffic database, counting the vehicle flow of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct, screening the maximum vehicle flow of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct, and marking the maximum vehicle flow of each day in the near year of the target construction area corresponding to each pier in the pre-construction road viaduct as L max b i ；
According to the historical driving vehicle data of each bridge pier corresponding to the target construction area in the pre-construction road viaduct in each day of the year, the driving quantity of each type of vehicle of each bridge pier corresponding to the target construction area in the pre-construction road viaduct in each day of the year is counted, and the bridge pier pairs in the pre-construction road viaduct are obtained through an average value calculation formulaThe running number proportion of each type of vehicle in the target construction area in the near year is marked as
f is denoted as the f-th type of vehicle.
3. The method for evaluating the feasibility of construction project engineering based on multi-dimensional data according to claim 1, wherein the method comprises the following steps: the specific detailed steps corresponding to the step S5 are as follows:
extracting the occurrence frequency of each wind power grade in the history of the area where the pre-constructed road viaduct is located from a regional history meteorological database, recording the wind power grade which is larger than the preset safety wind power grade as a designated wind power grade, comparing and screening the occurrence frequency of each designated wind power grade in the history of the area where the pre-constructed road viaduct is located, and analyzing according to a frequency calculation formula to obtain the occurrence frequency phi of each designated wind power grade in the history of the area where the pre-constructed road viaduct is located r R=1, 2,..y, r is denoted as the r-th designated wind level.
4. The method for evaluating the feasibility of construction project engineering based on multi-dimensional data according to claim 1, wherein the method comprises the following steps: and in the step S7, corresponding processing is carried out according to the comparison analysis result, and the method specifically comprises the following steps:
comparing the comprehensive construction feasibility index of each pier in the pre-constructed road viaduct with a preset threshold value of the construction feasibility index of the viaduct, and if the comprehensive construction feasibility index of a pier in the pre-constructed road viaduct is smaller than the preset threshold value of the construction feasibility index of the viaduct, indicating that the construction feasibility of the pier in the pre-constructed road viaduct does not meet the standard, and carrying out corresponding early warning reminding.
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