A safety evaluation model for high slope construction and a safety evaluation method

Abstract

The application provides a construction safety evaluation model for high slope and a construction safety evaluation method, and comprises the following steps: obtaining historical accident information corresponding to the high slope based on a preset high slope construction database, determining the accident type and the construction stage of the accident corresponding to the high slope based on the historical accident information corresponding to the high slope, determining the occurrence frequency of each type of accident in different construction stages of the high slope and determining the high-accident-construction stage of the high slope based on the accident type and the construction stage of the accident corresponding to the high slope, determining the accident-related index corresponding to the high-accident-construction stage of the high slope, the weight of the accident-related index and the risk score based on the working condition corresponding to the accident in the high-accident-construction stage of the high slope, and constructing the safety evaluation model for high slope construction based on the accident-related index corresponding to the high-accident-construction stage of the high slope, the weight of the accident-related index and the risk score, so that the accuracy and efficiency of the safety evaluation can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road engineering, and in particular to a construction and safety evaluation method of a safety evaluation model for high slope construction. BACKGROUND

[0002] High slope is a high-risk link in highway construction, and production safety accidents occur frequently, so a comprehensive risk assessment must be carried out before high slope construction to pre-control safety risks.

[0003] The current high slope construction safety evaluation scheme usually carries out overall risk assessment on the whole cutting high slope engineering of the construction project before construction, and on the basis of overall risk assessment, carries out risk identification, analysis, estimation and other special risk assessment processes on the cutting high slope reaching high risk and above, to quantitatively evaluate the major risk sources, divide the risk level, and then facilitate the subsequent development of accurate risk control measures.

[0004] Although the above scheme can realize the safety evaluation of high slope construction, the entire evaluation process is carried out before construction, and the actual construction conditions during construction may deviate from the expected conditions, so the safety evaluation results of the current high slope construction safety evaluation scheme are often not accurate enough, resulting in the occurrence of production safety accidents. At the same time, the current high slope construction safety evaluation scheme often carries out joint evaluation by multiple professional technicians, which not only consumes manpower and material resources, but also causes delay in construction progress due to the complex calculation and argumentation required in the evaluation process. SUMMARY

[0005] The present application provides a construction and safety evaluation method of a safety evaluation model for high slope construction, to solve the problem of inaccurate safety evaluation results and low evaluation efficiency of the current high slope construction safety evaluation scheme.

[0006] In one aspect, the present application provides a construction method of a safety evaluation model for high slope construction, comprising:

[0007] Based on the preset high slope construction database, historical accident information corresponding to different height high slopes is obtained, and based on the historical accident information corresponding to different height high slopes, the accident types and the construction stages of accident occurrence corresponding to different height high slopes are determined;

[0008] Based on the accident types and the construction stages of accident occurrence corresponding to different height high slopes, the occurrence frequency of each type of accident in different construction stages of different height high slopes is determined;

[0009] Based on the occurrence frequency of each type of accident in different construction stages of different height high slopes, the high-incident construction stages of different height high slopes are determined;

[0010] determine the accident-related indexes corresponding to the accident-prone construction stage of the high slope with different heights, the weights of each accident-related index, and the risk scores corresponding to the state of each accident-related index based on the working conditions corresponding to each type of accident in the accident-prone construction stage of the high slope with different heights;

[0011] construct a safety evaluation model for high slope construction based on the accident-related indexes corresponding to the accident-prone construction stage of the high slope with different heights, the weights of each accident-related index, and the risk scores corresponding to the state of each accident-related index.

[0012] In an optional embodiment of the present application, the safety evaluation model for high slope construction is used to determine the accident-related indexes corresponding to the current construction stage of the target high slope construction node based on the height of the target high slope construction node, the current construction stage, and the accident-related indexes corresponding to the accident-prone construction stage of the high slope with different heights.

[0013] determine the current risk score of the accident-related indexes corresponding to the current construction stage of the target high slope construction node based on the current state of the accident-related indexes corresponding to the current construction stage of the target high slope construction node and the risk scores corresponding to the state of each accident-related index.

[0014] determine the current accident possibility value of the target high slope construction node based on the weights of the accident-related indexes corresponding to the current construction stage of the target high slope construction node and the current risk score.

[0015] In an optional embodiment of the present application, the determination of the current accident possibility value of the target high slope construction node based on the weights of the accident-related indexes corresponding to the current construction stage of the target high slope construction node and the current risk score includes:

[0016] determine the accident contribution degree value of each accident-related index corresponding to the current construction stage of the target high slope construction node based on the weights of the accident-related indexes corresponding to the current construction stage of the target high slope construction node and the current risk score; for any target accident-related index, the accident contribution degree value of the target accident-related index is the product of the weight of the target accident-related index and the current risk score.

[0017] sum the accident contribution degree values of each accident-related index corresponding to the current construction stage of the target high slope construction node to obtain the current accident possibility value of the target high slope construction node.

[0018] In an optional embodiment of the present application, the historical accident information includes indication information of the accident type, the construction stage of the accident, and the working conditions corresponding to the accident.

[0019] In an optional embodiment of the present application, the accident types include slope instability, landslides, slope diseases and falling from a height; and the construction stages include a slope excavation stage, a surface drainage system setting stage, an anti-slide retaining wall setting stage, an anti-slide pile setting stage, a prestressed anchoring engineering setting stage, a soil nailing wall setting stage, a grouting reinforcement stage, an underground drainage tunnel setting stage, a slope plant protection stage and a slope skeleton protection stage.

[0020] In an optional embodiment of the present application, the determining of the accident-prone construction stage of the high slope of different heights based on the occurrence frequencies of each type of accident in different construction stages of the high slope of different heights comprises:

[0021] For the high slope of the target height, the sequence of the accident frequencies corresponding to different construction stages of the high slope of the target height is determined based on the sum of the occurrence frequencies of each type of accident in the target construction stage of the high slope of the target height.

[0022] The accident-prone construction stage of the high slope of the target height is determined based on the sequence of the accident frequencies corresponding to different construction stages of the high slope of the target height and a preset frequency threshold.

[0023] In an optional embodiment of the present application, the accident-prone construction stage is the slope excavation stage, the anti-slide retaining wall setting stage, the anti-slide pile setting stage, the prestressed anchoring engineering setting stage, the grouting reinforcement stage and the underground drainage tunnel setting stage.

[0024] In an optional embodiment of the present application, the determining of the accident-related index corresponding to the accident-prone construction stage of the high slope of different heights, the weight of each accident-related index and the risk score corresponding to the state of each accident-related index based on the working condition corresponding to the occurrence of each type of accident in the accident-prone construction stage of the high slope of different heights comprises:

[0025] The accident-related index corresponding to the accident-prone construction stage of the high slope of different heights is selected from the working condition corresponding to the occurrence of each type of accident in the accident-prone construction stage of the high slope of different heights based on the ReliefF algorithm.

[0026] The weight of each accident-related index corresponding to the accident-prone construction stage of the high slope of different heights and the risk score corresponding to the state of each accident-related index are determined based on the special risk assessment results of the accident-related index corresponding to the accident-prone construction stage of the high slope of different heights in the high slope construction database.

[0027] In an optional embodiment of the present application, the working condition includes geological conditions, environmental conditions, meteorological conditions and construction conditions.

[0028] Correspondingly, the accident-related indicators corresponding to the slope excavation stage are: slope ratio, excavation method, process connection mode, lithology change, slope structure change, groundwater change, construction weather and construction surrounding environment;

[0029] The accident-related indicators corresponding to the anti-slide retaining wall setting stage are: wall height, structure type, foundation burial depth, foundation stratum condition, bearing stratum geological compliance, groundwater condition, excavation segmentation method, scaffold height and surrounding environment;

[0030] The accident-related indicators corresponding to the anti-slide pile setting stage are: pile length, pile type, stratum condition, topographic condition, groundwater condition, pile hole construction method, jump construction method, harmful gas state, surrounding environment and ventilation lighting state;

[0031] The accident-related indicators corresponding to the prestressed anchoring engineering setting stage are: operation height, operation slope, drilling depth, anchoring structure type, anchoring return structure, anchoring segment stratum, groundwater level, process connection mode, drilling method, scaffold height, surrounding environment, construction weather and wind force condition;

[0032] The accident-related indicators corresponding to the grouting reinforcement stage are: micro pile diameter, slope topographic condition, slope stability state, grouting method, grouting pressure, construction site environment and surrounding environment;

[0033] The accident-related indicators corresponding to the underground drainage tunnel setting stage are: maximum internal diameter of tunnel body section, stratum condition, geological condition compliance, groundwater, one-time blasting progress, excavation method, support method and surrounding environment.

[0034] In a second aspect, the present application further provides a safety evaluation method of a safety evaluation model for high slope construction, which is applied to the safety evaluation model for high slope construction constructed by the method as described above, and comprises:

[0035] Based on the height of the target high slope construction node, the current construction stage and the accident-related indicators corresponding to the high-accident construction stage of different height high slopes, the accident-related indicators corresponding to the current construction stage of the target high slope construction node are determined;

[0036] Based on the current state of the accident-related indicators corresponding to the current construction stage of the target high slope construction node and the risk scores corresponding to the states of the accident-related indicators, the current risk score of the accident-related indicators corresponding to the current construction stage of the target high slope construction node is determined;

[0037] Based on the weight and the current risk score of the accident-related indicators corresponding to the current construction stage of the target high slope construction node, the current accident possibility value of the target high slope construction node is determined;

[0038] The current status of the accident-related indicators corresponding to the current construction stage of the target high slope construction node is obtained based on the monitoring equipment set at the target high slope construction node.

[0039] This invention provides a safety evaluation model and method for high slope construction. It obtains historical accident information corresponding to high slopes of different heights from a pre-set high slope construction database, and determines the accident types and construction stages corresponding to different high slope heights based on this information. Based on the accident types and construction stages, it determines the frequency of each type of accident at different construction stages for high slopes of different heights. Based on the frequency of each type of accident at different construction stages for high slopes of different heights, it identifies the high-incidence construction stages for accidents at different high slope heights. Finally, it determines the impact of each type of accident on the construction performance during the high-incidence construction stages for high slopes of different heights. Under appropriate working conditions, this study determines the accident-related indicators, weights, and risk scores corresponding to the states of high-risk construction stages of high-slopes at different heights. Based on these indicators, a safety evaluation model for high-slope construction is constructed. This model can quickly and accurately build a safety evaluation model for high-slope construction based on historical accident information. Furthermore, it enables rapid safety assessment of high-slope construction, solving the problems of inaccurate and inefficient safety assessment results in current high-slope construction safety assessment schemes. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 A flowchart illustrating a method for constructing a safety evaluation model for high slope construction provided by the present invention;

[0042] Figure 2 A flowchart for determining the construction phase with a high incidence of accidents, provided by this invention;

[0043] Figure 3 This is a schematic diagram illustrating the process for determining accident-related indicators, their weights, and risk scores, as provided by this invention.

[0044] Figure 4A flowchart of a safety evaluation method of a safety evaluation model for high slope construction provided by the present application is shown in the figure. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described below in connection with the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0046] Figure 1 A flowchart of a construction method of a safety evaluation model for high slope construction provided by the present application is shown in the figure. Figure 1 As shown in the figure, the method can include:

[0047] In step 101, based on a preset high slope construction database, historical accident information corresponding to high slopes of different heights is obtained, and based on the historical accident information corresponding to high slopes of different heights, accident types and construction stages of accidents corresponding to high slopes of different heights are determined.

[0048] Specifically, based on the foregoing, it can be known that although the existing high slope construction safety evaluation scheme can realize high slope construction safety evaluation, since the entire evaluation process is performed before construction, the actual construction conditions during construction may deviate from the expectations, and therefore the evaluation result of the existing high slope construction safety evaluation scheme for safety is often not accurate enough, leading to the fact that production safety accidents still occur from time to time. At the same time, the existing high slope construction safety evaluation scheme often jointly evaluates by multiple professional technicians, which not only consumes manpower and material resources, but also often causes construction progress delay due to the need for complex calculation and argumentation in the evaluation process. Based on this, the present application embodiments propose a construction method of a safety evaluation model for high slope construction, and the safety evaluation model for high slope construction constructed by the method can accurately and efficiently evaluate the safety of high slope construction.

[0049] More specifically, this embodiment of the application pre-collects historical accident information corresponding to high slopes of different heights through a big data system to form a high slope construction database. The historical accident information includes the accident type, the construction stage at which the accident occurred, and indications of the corresponding working conditions at the time of the accident. Based on this, this embodiment of the application can quickly determine the accident type and construction stage corresponding to high slopes of different heights based on the high slope construction database. It is understood that the accident types include: slope instability, collapse, slope damage, and falls from height; the construction stages include: slope excavation stage, surface drainage system installation stage, anti-slide retaining wall installation stage, anti-slide pile installation stage, prestressed anchoring engineering installation stage, soil nailing wall installation stage, grouting reinforcement stage, underground drainage tunnel installation stage, slope vegetation protection stage, and slope skeleton protection stage. Based on this, the comprehensiveness and accuracy of the accident data can be guaranteed, thereby ensuring the accuracy of the evaluation results of the subsequently constructed high slope construction safety evaluation model.

[0050] Step 102: Based on the accident types corresponding to high slopes of different heights and the construction stages in which the accidents occur, determine the frequency of occurrence of each type of accident at different construction stages for high slopes of different heights.

[0051] Specifically, since the construction of high slopes is carried out in stages, the working conditions faced at different stages are different, resulting in different accident types and frequencies. Therefore, this application, after determining the accident types and construction stages corresponding to different heights of high slopes, further determines the frequency of each type of accident at different construction stages for high slopes of different heights based on these accident types and construction stages. This allows for accurate determination of the frequency of each type of accident at different construction stages for high slopes of different heights, thereby eliminating construction stages with low accident frequencies, reducing the computational workload of high slope construction safety assessment, and improving assessment efficiency.

[0052] Step 103: Based on the frequency of various types of accidents at different construction stages of high slopes of different heights, determine the high-incidence construction stages of accidents for high slopes of different heights.

[0053] Specifically, Figure 2 The flowchart for determining the high-accident-prone construction phase provided by this invention is as follows: Figure 2 As shown, the high-incidence construction stages for accidents on high slopes of different heights are determined based on the frequency of various types of accidents at different construction stages, including:

[0054] Step 1031: For a high slope at a target height, based on the sum of the occurrence frequencies of each type of accident during the target construction stage of the high slope at the target height, determine the accident frequency sequence corresponding to different construction stages of the high slope at the target height.

[0055] In step 1032, based on the accident frequency sequence corresponding to different construction stages of the high slope of the target height and the preset frequency threshold, the high-accident construction stage of the high slope of the target height is determined.

[0056] It can be understood that the high slope generally refers to a soil slope higher than 20m or a rock slope higher than 30m. Since the historical accident information sample of the rock slope is less, the embodiment of the present application mainly performs construction safety evaluation on the soil slope. Based on this, the target height can be any value higher than 20m. Since the accident types corresponding to the target construction stage of the high slope of the target height can be multiple, and the ultimate goal of the embodiment of the present application is to avoid safety risks, the sum of the occurrence frequencies of each type of accident of the target construction stage of the high slope of the target height is taken as the accident frequency corresponding to the target construction stage of the high slope of the target height, and then the accident frequency sequence corresponding to different construction stages of the high slope of the target height can be determined. Based on this, it is possible to maximize the omission of possible safety accidents in the safety evaluation process.

[0057] Based on the above, based on the accident frequency sequence corresponding to different construction stages of the high slope of the target height and the preset frequency threshold, the high-accident construction stage of the high slope of the target height can be determined. It can be understood that the preset frequency threshold can be determined based on the requirement of safety, which is not specifically limited in the embodiment of the present application. The high-accident construction stage finally determined by the embodiment of the present application is the slope excavation stage, the anti-slide retaining wall setting stage, the anti-slide pile setting stage, the prestressed anchoring engineering setting stage, the grouting reinforcement stage and the underground drainage tunnel setting stage.

[0058] In step 104, based on the working condition corresponding to the occurrence of each type of accident in the high-accident construction stage of the high slope of different heights, the accident-related index corresponding to the high-accident construction stage of the high slope of different heights, the weight of each accident-related index and the risk score corresponding to the state of each accident-related index are determined.

[0059] Specifically, it is worth noting that the historical accident information also includes working condition indication information corresponding to the occurrence of the accident, and the working condition includes geological condition, environmental condition, meteorological condition and construction condition. Based on this, the embodiment of the present application can quickly determine the accident-related index based on the working condition indication information corresponding to the occurrence of the accident, and then maximize the accuracy of the safety evaluation result while avoiding the analysis and processing of a large number of indexes. More specifically, Figure 3 is the determination process diagram of the accident-related index, the weight of the accident-related index and the risk score provided by the present application, as shown in Figure 3As shown, the corresponding working conditions of each type of accident occurring in the construction phase of the high slope with different heights are determined, the accident-related indicators corresponding to the construction phase of the high slope with different heights, the weights of each accident-related indicator, and the risk scores corresponding to the state of each accident-related indicator are determined, and specifically include:

[0060] Step 1041, based on the ReliefF algorithm, the accident-related indicators corresponding to the construction phase of the high slope with different heights are selected from the corresponding working conditions of each type of accident occurring in the construction phase of the high slope with different heights.

[0061] Step 1042, based on the special risk assessment results of the accident-related indicators corresponding to the construction phase of the high slope with different heights in the high slope construction database, the weights of each accident-related indicator corresponding to the construction phase of the high slope with different heights and the risk scores corresponding to the state of each accident-related indicator are determined.

[0062] The ReliefF algorithm is a mature feature selection algorithm. Based on the ReliefF algorithm, the embodiment of the present application can quickly and accurately select the accident-related indicators corresponding to the construction phase of the high slope with different heights from the corresponding working conditions of each type of accident occurring in the construction phase of the high slope with different heights. At the same time, it is worth noting that the current high slope construction safety assessment scheme stipulates that special risk assessment of the construction process is required when a production safety accident occurs. Based on this, it can be understood that the historical accident information of the present application also includes the special risk assessment results corresponding to the accident. The special risk assessment is obtained by comprehensive evaluation of multiple technical experts, and the turning risk assessment results include the evaluation results of the accident-related indicators, the weights of the accident-related indicators, and the risk scores corresponding to the state of the accident-related indicators. Based on this, the embodiment of the present application can determine the weights of each accident-related indicator corresponding to the construction phase of the high slope with different heights and the risk scores (percentage) corresponding to the state of each accident-related indicator based on the special risk assessment results of the accident-related indicators corresponding to the construction phase of the high slope with different heights in the high slope construction database.

[0063] It is worth noting that, generally, the accident-related indicators corresponding to the high-slope accident-prone construction stage obtained based on the ReliefF algorithm are consistent with the special risk assessment results related to accidents. However, in the actual assessment process, due to human assessment negligence, the number of accident-related indicators corresponding to the high-slope accident-prone construction stage obtained based on the ReliefF algorithm is more than the special risk assessment results related to accidents. When facing this situation, the embodiment of the application will take the accident-related indicators obtained by the ReliefF algorithm as the standard, and determine the weight values of the accident-related indicators based on the importance ranking method. That is, the accident-related indicators are ranked according to importance, and the weight values are determined according to the same difference between adjacent indicators. Based on this, the accuracy and efficiency of safety evaluation can be considered.

[0064] The accident-related indicators corresponding to the slope excavation stage finally determined by the embodiment of the application are: slope ratio (that is, the value of the cutting slope exceeding the comparative slope gradient value of the natural slope where it is located, the larger the value, the higher the score), excavation method (different methods are assigned different risk scores), process connection mode (different process connection modes are assigned different risk scores), lithology change (based on the difference between the weathering category of the exposed bedrock and the pre-judgment, different risk scores are assigned), slope structure change (based on the continuity and filling condition of the exposed structure surface, and the difference between the pre-judgment, different risk scores are assigned), groundwater change (different risk scores are assigned according to the type of groundwater, the distribution of aquifer, and the size of water content), construction weather (different risk scores are assigned according to the rainfall level of the area where the slope is located), and construction surrounding environment (different risk scores are assigned based on the distance between the surface buildings, underground buried objects, high-voltage line towers, water facilities and the slope top excavation line);

[0065] The accident-related indicators corresponding to the anti-slide retaining wall setting stage are: wall height, structure type, foundation burial depth, foundation stratum condition (different risk scores are assigned based on the stratum soil type), bearing stratum geological compliance (different risk scores are assigned based on the compliance degree), groundwater condition (different risk scores are assigned according to the distance of the foundation below the groundwater level), excavation segmentation mode, scaffold height, and surrounding environment (different risk scores are assigned based on whether there are landslide bodies, rivers, and lakes around the pile position);

[0066] The accident-related indexes corresponding to the setting stage of the anti-slide pile are: pile length, pile type, stratum condition (different risk scores are assigned according to whether wall shrinkage, hole collapse, and sudden mud gushing will occur during excavation), terrain condition (different risk scores are assigned based on terrain slope), groundwater condition (different risk scores are assigned based on the presence of groundwater at the construction site), pile hole construction method, jump construction method, harmful gas state (different risk scores are assigned according to the content of hydrogen sulfide, gas, carbon monoxide, and carbon dioxide), surrounding environment (different risk scores are assigned based on whether there are landslide bodies, rivers, and lakes around the pile site), and ventilation and lighting state (different risk scores are assigned according to the ventilation and lighting conditions at the site);

[0067] The accident-related indexes corresponding to the setting stage of the prestressed anchoring engineering are: operation height (different risk scores are assigned based on the height of the operation area), operation slope (different risk scores are assigned based on the operation slope), drilling depth (different risk scores are assigned based on the drilling depth), anchoring structure type, anchoring return structure, anchoring segment stratum (different risk scores are assigned according to the difficulty of hole formation), groundwater level (different risk scores are assigned according to the groundwater pressure range of the anchoring segment during construction), process connection method, drilling method, scaffold height, surrounding environment (different risk scores are assigned according to the underground and surface engineering grades within the drilling depth range), construction weather (different risk scores are assigned based on rain, fog, snow, frost, and freezing weather), and wind force condition;

[0068] The accident-related indexes corresponding to the grouting reinforcement stage are: micro-pile diameter, slope terrain condition (different risk scores are assigned based on softness, fragmentation, and water abundance), slope stability state, grouting method, grouting pressure, construction site environment (different risk scores are assigned according to visibility and noise conditions), and surrounding environment (different risk scores are assigned according to the height and hydraulic connectivity of water bodies such as rivers and lakes near the grouting area);

[0069] The accident-related indexes corresponding to the setting stage of the underground drainage tunnel are: maximum internal diameter of the tunnel body section, stratum condition (different risk scores are assigned according to the surrounding rock type), geological condition compliance, groundwater (different risk scores are assigned based on the presence of groundwater at the construction site), one-time blasting progress, excavation method, support method, and surrounding environment (different risk scores are assigned based on whether there are landslide bodies, rivers, and lakes around the pile site).

[0070] It can be understood that the specific risk score development strategies of the above-mentioned accident-related indexes can directly adopt the strategies in the special risk assessment results of the accident-related indexes.

[0071] In step 105, based on the accident-related indexes corresponding to the high-slope accident-prone construction stage of different heights, the weights of each accident-related index, and the risk scores corresponding to the state of each accident-related index, a safety evaluation model for high-slope construction is constructed.

[0072] Specifically, based on the determined accident-related indicators corresponding to the construction stages with high accident rates of high slopes of different heights, the weights of the accident-related indicators, and the risk scores corresponding to the states of the accident-related indicators, the safety evaluation model for high slope construction is constructed. More specifically, the safety evaluation model for high slope construction is used to determine the accident-related indicators corresponding to the current construction stage of the target high slope construction node based on the height of the high slope of the target high slope construction node, the current construction stage, and the accident-related indicators corresponding to the construction stages with high accident rates of high slopes of different heights.

[0073] Based on the current state of the accident-related indicators corresponding to the current construction stage of the target high slope construction node and the risk scores corresponding to the states of the accident-related indicators, the current risk score of the accident-related indicators corresponding to the current construction stage of the target high slope construction node is determined.

[0074] Based on the weights and current risk scores of the accident-related indicators corresponding to the current construction stage of the target high slope construction node, the current accident possibility value of the target high slope construction node is determined.

[0075] The determination of the current accident possibility value of the target high slope construction node based on the weights and current risk scores of the accident-related indicators corresponding to the current construction stage of the target high slope construction node includes:

[0076] Based on the weights and current risk scores of the accident-related indicators corresponding to the current construction stage of the target high slope construction node, the accident contribution degree values of the accident-related indicators corresponding to the current construction stage of the target high slope construction node are determined. For any target accident-related indicator, the accident contribution degree value of the target accident-related indicator is the product of the weight and current risk score of the target accident-related indicator.

[0077] The accident contribution degree values of the accident-related indicators corresponding to the current construction stage of the target high slope construction node are summed to obtain the current accident possibility value of the target high slope construction node.

[0078] It is worth noting that the current state of the accident-related indicators corresponding to the current construction stage of the target high slope construction node is obtained based on the monitoring equipment set in the target high slope construction node. Based on this, the safety evaluation model for high slope construction constructed by the embodiments of the present application can perform real-time evaluation of construction safety during the construction process, thereby maximizing the efficiency and accuracy of safety evaluation.

[0079] The scheme provided by the application obtains historical accident information corresponding to high slopes of different heights based on a preset high slope construction database, and determines accident types and construction stages in which accidents occur corresponding to high slopes of different heights based on the historical accident information corresponding to high slopes of different heights; determines the occurrence frequency of each type of accident in different construction stages of high slopes of different heights based on the accident types and the construction stages in which accidents occur corresponding to high slopes of different heights; determines the high-accident-construction stage of high slopes of different heights based on the occurrence frequency of each type of accident in different construction stages of high slopes of different heights; determines the accident-related index corresponding to the high-accident-construction stage of high slopes of different heights, the weight of each accident-related index, and the risk score corresponding to the state of each accident-related index based on the working condition corresponding to the occurrence of each type of accident in the high-accident-construction stage of high slopes of different heights; and constructs a safety evaluation model for high slope construction based on the accident-related index corresponding to the high-accident-construction stage of high slopes of different heights, the weight of each accident-related index, and the risk score corresponding to the state of each accident-related index. The safety evaluation model for high slope construction can quickly and accurately construct a safety evaluation model for high slope construction based on historical accident information of high slopes, and can quickly evaluate the safety of high slope construction through the safety evaluation model for high slope construction, thereby solving the problems of inaccurate safety evaluation results and low evaluation efficiency of the current high slope construction safety evaluation scheme.

[0080] Figure 4 The flowchart of the safety evaluation method of the safety evaluation model for high slope construction provided by the application is shown in Figure 4 The method is applied to the safety evaluation model for high slope construction constructed by the foregoing method, and includes the following steps.

[0081] In step 201, the accident-related index corresponding to the current construction stage of the target high slope construction node is determined based on the height of the high slope of the target high slope construction node, the current construction stage, and the accident-related index corresponding to the high-accident-construction stage of high slopes of different heights.

[0082] In step 202, the current risk score of the accident-related index corresponding to the current construction stage of the target high slope construction node is determined based on the current state of the accident-related index corresponding to the current construction stage of the target high slope construction node and the risk score corresponding to the state of each accident-related index.

[0083] In step 203, the current accident possibility value of the target high slope construction node is determined based on the weight of the accident-related index corresponding to the current construction stage of the target high slope construction node and the current risk score.

[0084] The current state of the accident-related index corresponding to the current construction stage of the target high slope construction node is obtained based on the monitoring equipment arranged at the target high slope construction node.

[0085] The specific principles have been discussed in the foregoing embodiments, and will not be repeated here.

[0086] The scheme provided by the present application determines the accident correlation index corresponding to the current construction stage of the target high slope construction node based on the height of the high slope of the target high slope construction node, the current construction stage, and the accident correlation index corresponding to the high-accident-prone construction stage of different height high slopes. The current risk score of the accident correlation index corresponding to the current construction stage of the target high slope construction node is determined based on the current state of the accident correlation index corresponding to the current construction stage of the target high slope construction node and the risk score corresponding to the state of each accident correlation index. The current accident possibility value of the target high slope construction node is determined based on the weight and the current risk score of the accident correlation index corresponding to the current construction stage of the target high slope construction node. The current state of the accident correlation index corresponding to the current construction stage of the target high slope construction node is obtained based on the monitoring equipment arranged at the target high slope construction node. The safety during the high slope construction process can be accurately and efficiently evaluated, and the safety risk can be determined in a timely and accurate manner.

[0087] The device embodiments described above are only schematic, wherein the units shown as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e., they can be located in one place, or distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the present embodiment scheme. Those skilled in the art can understand and implement without creative labor.

[0088] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be realized by means of software and the necessary general hardware platform, and of course, it can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, server, or network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0089] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for constructing a safety evaluation model for high slope construction, characterized in that, The method comprises the following steps: obtaining historical accident information corresponding to high slopes of different heights based on a preset high slope construction database, and determining accident types and construction stages of accidents corresponding to high slopes of different heights based on the historical accident information corresponding to high slopes of different heights; determining the occurrence frequency of each type of accident in different construction stages of high slopes of different heights based on the accident types and the construction stages of accidents corresponding to high slopes of different heights; determining the high-accident-construction stage of high slopes of different heights based on the occurrence frequency of each type of accident in different construction stages of high slopes of different heights; determining the accident-related indicators corresponding to the high-accident-construction stage of high slopes of different heights, the weights of each accident-related indicator, and the risk scores corresponding to the state of each accident-related indicator based on the working conditions corresponding to the occurrence of each type of accident in the high-accident-construction stage of high slopes of different heights; constructing a safety evaluation model for high slope construction based on the accident-related indicators corresponding to the high-accident-construction stage of high slopes of different heights, the weights of each accident-related indicator, and the risk scores corresponding to the state of each accident-related indicator; determining the high-accident-construction stage of high slopes of different heights based on the occurrence frequency of each type of accident in different construction stages of high slopes of different heights, which comprises the following steps: for a high slope of a target height, determining the accident frequency sequence corresponding to different construction stages of the high slope of the target height based on the sum of the occurrence frequency of each type of accident in the target construction stage of the high slope of the target height; determining the high-accident-construction stage of the high slope of the target height based on the accident frequency sequence corresponding to different construction stages of the high slope of the target height and a preset frequency threshold; determining the accident-related indicators corresponding to the high-accident-construction stage of high slopes of different heights, the weights of each accident-related indicator, and the risk scores corresponding to the state of each accident-related indicator based on the working conditions corresponding to the occurrence of each type of accident in the high-accident-construction stage of high slopes of different heights, which comprises the following steps: screening the accident-related indicators corresponding to the high-accident-construction stage of high slopes of different heights from the working conditions corresponding to the occurrence of each type of accident in the high-accident-construction stage of high slopes of different heights based on the ReliefF algorithm; determining the weights of each accident-related indicator corresponding to the high-accident-construction stage of high slopes of different heights and the risk scores corresponding to the state of each accident-related indicator based on the special risk assessment results of the accident-related indicators corresponding to the high-accident-construction stage of high slopes of different heights in the high slope construction database; The historical accident information includes the indication information of the accident type, the construction stage of the accident, and the working conditions corresponding to the occurrence of the accident, and the working conditions include the geological conditions, the environmental conditions, the meteorological conditions, and the construction conditions.

2. The method of claim 1, wherein, The safety evaluation model for high slope construction is used to determine the accident-related indicators corresponding to the current construction stage of the target high slope construction node based on the height of the target high slope construction node, the current construction stage, and the accident-related indicators corresponding to the high-accident-construction stage of high slopes of different heights. determine a current risk score of the accident-related index corresponding to the current construction stage of the target high-slope construction node based on the current state of the accident-related index corresponding to the current construction stage of the target high-slope construction node and the risk score corresponding to the state of each accident-related index; determine a current accident possibility value of the target high-slope construction node based on the weight and the current risk score of the accident-related index corresponding to the current construction stage of the target high-slope construction node.

3. The method of claim 2, wherein, The determination of the current accident possibility value of the target high-slope construction node based on the weight and the current risk score of the accident-related index corresponding to the current construction stage of the target high-slope construction node comprises: determine an accident contribution degree value of each accident-related index corresponding to the current construction stage of the target high-slope construction node based on the weight and the current risk score of the accident-related index corresponding to the current construction stage of the target high-slope construction node; for any target accident-related index, the accident contribution degree value of the target accident-related index is the product of the weight and the current risk score of the target accident-related index; sum the accident contribution degree values of each accident-related index corresponding to the current construction stage of the target high-slope construction node to obtain the current accident possibility value of the target high-slope construction node.

4. The method of claim 3, wherein, The accident types include slope instability, collapse, slope disease, and falling from a high place; and the construction stages include a slope excavation stage, a surface drainage system setting stage, an anti-slide retaining wall setting stage, an anti-slide pile setting stage, a prestressed anchoring engineering setting stage, a soil nailing wall setting stage, a grouting reinforcement stage, an underground drainage tunnel setting stage, a slope plant protection stage, and a slope skeleton protection stage.

5. The method of claim 4, wherein, The accident-prone construction stages are the slope excavation stage, the anti-slide retaining wall setting stage, the anti-slide pile setting stage, the prestressed anchoring engineering setting stage, the grouting reinforcement stage, and the underground drainage tunnel setting stage.

6. The method of claim 5, wherein, The accident-related indexes corresponding to the slope excavation stage are slope ratio, excavation method, process connection mode, lithology change, slope structure change, underground water change, construction weather, and construction surrounding environment; The accident-related indexes corresponding to the anti-slide retaining wall setting stage are wall height, structure type, foundation burying depth, foundation stratum condition, bearing stratum geological compliance, underground water condition, excavation segmentation mode, scaffold height, and surrounding environment; The accident-related indexes corresponding to the anti-slide pile setting stage are pile length, pile type, stratum condition, terrain condition, underground water condition, pile hole construction method, jump construction method, harmful gas state, surrounding environment, and ventilation and lighting state; The accident-related indexes corresponding to the prestressed anchoring engineering setting stage are operation height, operation slope, drilling depth, anchoring structure type, anchoring return force structure, anchoring segment stratum, underground water level, process connection mode, drilling method, scaffold height, surrounding environment, construction weather, and wind force condition; The accident-related indexes corresponding to the grouting reinforcement stage are micro pile diameter, slope terrain condition, slope stability state, grouting method, grouting pressure, construction site environment, and surrounding environment; The accident-related indexes corresponding to the setting stage of the underground drainage tunnel are: the maximum inner diameter of the tunnel section, stratum conditions, geological condition compliance, underground water, primary blasting progress, excavation methods, support methods, and surrounding environment.

7. A safety evaluation method of a safety evaluation model for high slope construction, characterized by, The method is applied to a safety evaluation model for high-slope construction obtained by using the method of claim 6, and comprises the following steps: determining the accident-related indexes corresponding to the current construction stage of the target high-slope construction node based on the height of the target high-slope construction node, the current construction stage, and the accident-related indexes corresponding to the high-accident-prone construction stage of different heights of high slopes; determining the current risk score of the accident-related indexes corresponding to the current construction stage of the target high-slope construction node based on the current state of the accident-related indexes corresponding to the current construction stage of the target high-slope construction node and the risk scores corresponding to the states of the accident-related indexes; determining the current accident possibility value of the target high-slope construction node based on the weight and the current risk score of the accident-related indexes corresponding to the current construction stage of the target high-slope construction node; wherein the current state of the accident-related indexes corresponding to the current construction stage of the target high-slope construction node is obtained based on the monitoring equipment arranged at the target high-slope construction node.

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