Method and system for evaluating suitability of underground space development and utilization in highly developed area

Abstract

The application provides a highly built area underground space development and utilization suitability evaluation method and system, and relates to the technical field of underground space development and utilization. The method comprises the following steps: obtaining house census data and construction project quantity of multiple areas of a city of a highly built area; determining resource potential scores of underground spaces of the multiple areas; obtaining ground data of the multiple areas; determining development potential scores of the underground spaces of the multiple areas; obtaining remote sensing images of the multiple areas; determining development risk scores of the underground spaces of the multiple areas according to the remote sensing images; determining underground space development and utilization suitability scores of the multiple areas; and averaging the underground space development and utilization suitability scores of the multiple areas to obtain an underground space development and utilization suitability score of the highly built area. According to the application, the suitability of underground space development and utilization can be comprehensively evaluated according to the resource potential, development potential and development risk of the underground space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground space development and utilization, and particularly relates to a method and system for evaluating the suitability of underground space development in highly developed areas. BACKGROUND

[0002] In the related art, CN117933530A relates to a method for evaluating urban geological survey, comprising: constructing an underground space resource potential evaluation model for a valley-type city, evaluating the underground space resource potential of the valley-type city according to the underground space resource potential evaluation model, and obtaining a plurality of underground space regions with optimal resource potential; setting suitability evaluation indexes, constructing a suitability evaluation model for underground space development, and evaluating the suitability of the underground space regions based on the suitability evaluation model to obtain the most suitable development region. This scheme can quickly obtain the suitability evaluation result of underground space development, and has strong practicality in actual application.

[0003] CN112508399A proposes a method and system for evaluating the suitability of underground space development. The method establishes a three-dimensional voxel coordinate system ∑0 for the evaluation region, finds the coordinates of the origin of the coordinate system ∑0 in the coordinate system ∑1 in the 2000 national geodetic coordinate system ∑1, and establishes an affine transformation relationship between the coordinate system ∑0 and the coordinate system ∑1. A two-dimensional surface grid coordinate system ∑s is established, and a grid set G is formed in the evaluation region, denoted as grid g(x,y)∈G, and the underground space voxel constitutes a set Vxy. Based on g(x,y), a data structure T(x,y,I) is established to describe the evaluation index data of the underground space voxel set Vxy. The evaluation indexes are classified into general indexes and sensitive indexes according to their sensitivity. The general indexes are evaluated by quantitative indexes and qualitative indexes, and the evaluation value of the general indexes is calculated. The weight of the index with a too low or too high evaluation value is increased, and the comprehensive evaluation value of the evaluation unit is adjusted, and the underground space suitability evaluation grade is divided according to the value. This method realizes three-dimensional fine evaluation of underground space development suitability.

[0004] Therefore, in the related art, although the suitability of underground space development and utilization can be evaluated, the related art does not consider the influence of resource potential, development potential and development risk of underground space on the suitability of underground space development and utilization, that is, the suitability of underground space development and utilization cannot be comprehensively evaluated according to the resource potential, development potential and development risk of underground space.

[0005] The information disclosed in the background section of this application is only intended to deepen the understanding of the general background of the application, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. SUMMARY

[0006] The application provides a highly built-up area underground space development and utilization suitability evaluation method and system, which can solve the technical problem that related technologies cannot comprehensively evaluate the suitability of underground space development and utilization according to resource potential, development potential and development risk of underground space.

[0007] According to a first aspect of the application, a highly built-up area underground space development and utilization suitability evaluation method is provided, comprising:

[0008] On the current date, obtain house census data and construction project quantity of multiple regions of a city of the highly built-up area;

[0009] According to the house census data and the construction project quantity, determine resource potential scores of underground spaces of the multiple regions;

[0010] Obtain ground data of the multiple regions on the current date;

[0011] According to the ground data, determine development potential scores of underground spaces of the multiple regions;

[0012] Obtain remote sensing images of the multiple regions on the current date;

[0013] According to the remote sensing images, determine development risk scores of underground spaces of the multiple regions;

[0014] According to the resource potential scores, the development potential scores and the development risk scores, determine underground space development and utilization suitability scores of the multiple regions;

[0015] Average the underground space development and utilization suitability scores of the multiple regions to obtain a highly built-up area underground space development and utilization suitability score.

[0016] Further, the house census data includes construction years, underground floor numbers and underground space areas of built underground spaces, and the construction project quantity is a project quantity of underground spaces under construction.

[0017] Further, according to the house census data and the construction project quantity, the resource potential scores of underground spaces of the multiple regions are determined, comprising:

[0018] According to the house census data, determine inherent resource scores of underground spaces of the multiple regions;

[0019] According to the construction project quantity, determine updated resource scores of underground spaces of the multiple regions;

[0020] Weighted average the inherent resource scores and the updated resource scores to determine the resource potential scores of underground spaces of the multiple regions.

[0021] Further, according to the housing census data, the inherent resource score of the underground space of a plurality of regions is determined, comprising:

[0022] If the construction year is greater than or equal to the first year, the year resource score is valued at 1;

[0023] If the construction year is less than the first year and greater than the second year, the year resource score is valued at 0.5;

[0024] If the construction year is less than or equal to the second year, the year resource score is valued at 0;

[0025] If the number of underground floors is greater than or equal to the first number of floors, the number of floors resource score is valued at 1;

[0026] If the number of underground floors is less than the first number of floors and greater than the second number of floors, the number of floors resource score is valued at 0.5;

[0027] If the number of underground floors is less than or equal to the second number of floors, the number of floors resource score is valued at 0;

[0028] If the underground space area is greater than or equal to the first underground space area, the underground space area resource score is valued at 1;

[0029] If the underground space area is less than the first underground space area and greater than the second underground space area, the underground space area resource score is valued at 0.5;

[0030] If the underground space area is less than or equal to the second underground space area, the underground space area resource score is valued at 0;

[0031] The year resource score, the number of floors resource score and the underground space area resource score are weighted and summed to determine the inherent resource score of the underground space of a plurality of regions.

[0032] Further, according to the number of construction projects, the update resource score of the underground space of a plurality of regions is determined, comprising:

[0033] If the number of construction projects is greater than or equal to the preset number of construction projects, the update resource score is valued at 1;

[0034] If the number of construction projects is less than the preset number of construction projects, the update resource score is valued at 0.

[0035] Further, the aboveground data includes land price, population density and volume rate;

[0036] According to the aboveground data, the development potential score of the underground space of a plurality of regions is determined, comprising:

[0037] set the highest land price, the maximum population density and the highest volume rate of the plurality of regions in the city as a preset land price, a preset population density and a preset volume rate;

[0038] determine an above-ground state vector according to the land price, the population density and the volume rate;

[0039] determine an above-ground preset state vector according to the preset land price, the preset population density and the preset volume rate;

[0040] calculate the cosine similarity of the above-ground state vector and the above-ground preset state vector to determine the development potential score of the underground space of the plurality of regions.

[0041] Further, according to the remote sensing image, a development risk score of the underground space of the plurality of regions is determined, comprising:

[0042] determine the historical and cultural area and the lake park area of the plurality of regions in the remote sensing image;

[0043] obtain the area of each region according to the remote sensing image;

[0044] add the historical and cultural area and the lake park area, and divide by the value of the area of the region to determine the protection score;

[0045] randomly set a plurality of sampling regions in the unconstructed area of each region, and obtain the thickness, compressive strength and shear strength of the rock stratum of the sampling region;

[0046] determine the mechanical score of the underground rock and soil of the plurality of regions according to the thickness, compressive strength and shear strength of the rock stratum;

[0047] weight and sum the protection score and the value of 1 minus the mechanical score of the underground rock and soil to determine the development risk score of the underground space of the plurality of regions.

[0048] Further, according to the thickness, compressive strength and shear strength of the rock stratum, the mechanical score of the underground rock and soil of the plurality of regions is determined, comprising:

[0049] according to the formula

[0050]

[0051] determine the mechanical score F of the underground rock and soil of the i-th region i , wherein h i,j is the thickness of the rock stratum of the j-th sampling region of the i-th region, USC i,j is the compressive strength of the j-th sampling region of the i-th region, USC p is the compressive strength threshold, τi,j is the shear strength of the i-th region and the j-th sampling area, τ p is a shear strength threshold, N is the number of sampling areas, j≤N, and i, j and N are positive integers, max is a maximum function, and min is a minimum function.

[0052] Further, according to the resource potential score, the development potential score and the development risk score, a score of suitability of underground space development and utilization of multiple regions is determined, comprising:

[0053] The resource potential score, the development potential score and 1 minus the development risk score are weighted and summed to determine a score of suitability of underground space development and utilization of multiple regions.

[0054] According to a second aspect of the present application, a system for evaluating suitability of underground space development and utilization of highly built-up areas is provided, comprising:

[0055] A housing census data and construction project quantity module is configured to obtain housing census data and construction project quantities of multiple regions of a city of a highly built-up area at a current date;

[0056] A resource potential score module is configured to determine resource potential scores of underground spaces of the multiple regions according to the housing census data and the construction project quantities;

[0057] An above-ground data module is configured to obtain above-ground data of the multiple regions at the current date;

[0058] A development potential score module is configured to determine development potential scores of underground spaces of the multiple regions according to the above-ground data;

[0059] A remote sensing image module is configured to obtain remote sensing images of the multiple regions at the current date;

[0060] A development risk score module is configured to determine development risk scores of underground spaces of the multiple regions according to the remote sensing images;

[0061] A region underground space development and utilization suitability score module is configured to determine a score of suitability of underground space development and utilization of the multiple regions according to the resource potential scores, the development potential scores and the development risk scores;

[0062] A highly built-up area underground space development and utilization suitability score module is configured to average the scores of suitability of underground space development and utilization of the multiple regions to obtain a score of suitability of underground space development and utilization of the highly built-up area.

[0063] Technical effects: According to the present application, by means of housing census data, construction project quantity, ground data and remote sensing images and other information sources, a comprehensive evaluation perspective is provided for the development and utilization of underground space, which helps to more accurately reflect the resource potential, development potential and development risk of underground space in various regions, so as to make more reasonable decisions. Through quantifying the resource potential score, the development potential score and the development risk score, the underground space development and utilization suitability score of the highly developed area can be obtained, which helps to better grasp the overall trend and risk of underground space development and improve the management efficiency of the highly developed area. When determining the resource potential score of the underground space, the inherent resource value of the underground space and the resource increment brought by the renovation can be comprehensively and carefully evaluated through the housing census data and the construction project quantity, so as to determine the resource potential score of the underground space. Through the evaluation of the present situation and future development potential of the underground space, it is helpful to more accurately understand the actual situation of the underground space in various regions and improve the comprehensiveness, reliability and scientificity of the resource potential score. When determining the development potential score of the underground space, the cosine similarity between the ground state vector and the ground preset state vector can be calculated to determine the development potential score of the underground space. By comprehensively considering the land price, population density and volume rate, the development degree of the ground space can be reflected, so as to more comprehensively and accurately evaluate the development potential of the underground space and realize the saving and efficient use of land resources. When determining the mechanical score of the underground rock and soil, the thickness, compressive strength and shear strength of the rock layer can be comprehensively reflected, and the mechanical properties of the underground rock and soil can be evaluated to better identify the potential geological risk and improve the accuracy and reliability of the mechanical score of the underground rock and soil.

[0064] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, but not limiting the present application. Other features and aspects of the present application will be more apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0065] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other embodiments from these drawings without creative labor;

[0066] Figure 1 Exemplarily, a flowchart of a highly developed area underground space development and utilization suitability evaluation method according to an embodiment of the present application is shown;

[0067] Figure 2A flow chart of the computing resource potential score according to an embodiment of the present application is exemplarily shown;

[0068] Figure 3 A flow chart of the computing development potential score according to an embodiment of the present application is exemplarily shown;

[0069] Figure 4 A flow chart of the computing development risk score according to an embodiment of the present application is exemplarily shown;

[0070] Figure 5 A block diagram of the underground space development and utilization suitability evaluation system of the highly built-up area according to an embodiment of the present application is exemplarily shown. DETAILED DESCRIPTION

[0071] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0072] The technical solutions of the present application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in some embodiments.

[0073] Figure 1 A flow chart of the underground space development and utilization suitability evaluation method of the highly built-up area according to an embodiment of the present application is exemplarily shown, and the method comprises:

[0074] Step S1, obtaining house census data and construction project quantity of multiple regions of a city of a highly built-up area on a current date;

[0075] Step S2, determining resource potential scores of underground spaces of the multiple regions according to the house census data and the construction project quantity;

[0076] Step S3, obtaining above-ground data of the multiple regions on the current date;

[0077] Step S4, determining development potential scores of underground spaces of the multiple regions according to the above-ground data;

[0078] Step S5, obtaining remote sensing images of the multiple regions on the current date;

[0079] Step S6, determining development risk scores of underground spaces of the multiple regions according to the remote sensing images;

[0080] Step S7, determining the underground space development and utilization suitability score of the multiple regions according to the resource potential score, the development potential score and the development risk score;

[0081] Step S8, averaging the underground space development and utilization suitability scores of the multiple regions to obtain the underground space development and utilization suitability score of the highly built-up area.

[0082] The underground space development and utilization suitability evaluation method for a highly built-up area according to the embodiment of the present application provides a comprehensive evaluation perspective for the development and utilization of underground space through various information sources such as housing census data, construction project quantity, ground data and remote sensing images, which helps to more accurately reflect the resource potential, development potential and development risk of underground space in each region, so as to make more reasonable decisions. By quantifying the resource potential score, the development potential score and the development risk score, the underground space development and utilization suitability score of the highly built-up area can be obtained, which helps to better grasp the overall trend and risk of underground space development and improve the management efficiency of the highly built-up area.

[0083] According to an embodiment of the present application, in step S1, the highly built-up area is a region with high urbanization degree and dense buildings, and the highly built-up area is facing the problem of land resource shortage, so the development and utilization of underground space is particularly important. The city of the highly built-up area includes multiple regions, which can be county towns, towns or other geographical division units, and the housing census data and the construction project quantity of each region are obtained.

[0084] According to an embodiment of the present application, the housing census data includes the construction year, the number of underground floors and the area of underground space of the built underground space, and the construction project quantity is the number of projects of the underground space under construction. The construction year is the construction time of the underground space, and the technical level of the underground space construction in different years is different and the use condition is also different. The number of underground floors is the number of floors of the underground space, which reflects the depth and scale of the underground space development. The area of underground space is the total area of the underground space, which is an important indicator to measure the degree of development and utilization of underground space, and helps to understand the actual use condition and potential development space of the underground space. The construction project includes the projects of the underground space under construction, such as the demolition and reconstruction, the expansion and reconstruction, the addition of underground functional facilities and the new construction of underground space on the basis of the original underground space main body, and the construction project quantity reflects the current underground space construction activity condition and the updating and development demand of the region.

[0085] According to an embodiment of the present application, in step S2, the resource potential score of the underground space of the multiple regions is determined according to the housing census data and the construction project quantity.

[0086] Figure 2An exemplary flow chart of the calculation of the resource potential score of the underground space according to an embodiment of the present application is shown.

[0087] According to an embodiment of the present application, the step S2 comprises: a step S21 of determining the self-resource score of the underground space in the plurality of regions according to the housing census data; a step S22 of determining the updated resource score of the underground space in the plurality of regions according to the construction project quantity; and a step S23 of determining the resource potential score of the underground space in the plurality of regions by weighted averaging the self-resource score and the updated resource score.

[0088] According to an embodiment of the present application, in the step S21, the self-resource score of the underground space in the plurality of regions can be calculated based on the housing census data, which is an evaluation of the resources possessed by the underground space in the plurality of regions, and measures the inherent resource value of the underground space in each region.

[0089] According to an embodiment of the present application, in the step S22, the updated resource score of the underground space in the plurality of regions can be calculated based on the construction project quantity, which is an evaluation of the renovation of the underground space in the plurality of regions, and reflects the resource value added by the renovation of the underground space in each region.

[0090] According to an embodiment of the present application, in the step S23, the self-resource score and the updated resource score are processed by weighted averaging, for example, the self-resource score is given a lower weight of 0.4, and the updated resource score is given a higher weight of 0.6, so as to comprehensively consider the resource basis of the underground space itself and the resource value added by the renovation, thereby obtaining the resource potential score. The greater the resource potential score is, the greater the resource potential of the underground space is, and the more suitable the region is for the development and utilization of the underground space.

[0091] According to one embodiment of the present application, step S21 comprises: step S211, if the construction year is greater than or equal to a first year, the year resource score is 1; step S212, if the construction year is less than the first year and greater than a second year, the year resource score is 0.5; step S213, if the construction year is less than or equal to the second year, the year resource score is 0; step S214, if the number of underground floors is greater than or equal to a first number of floors, the number of floors resource score is 1; step S215, if the number of underground floors is less than the first number of floors and greater than a second number of floors, the number of floors resource score is 0.5; step S216, if the number of underground floors is less than or equal to the second number of floors, the number of floors resource score is 0; step S217, if the underground space area is greater than or equal to a first underground space area, the underground space area resource score is 1; step S218, if the underground space area is less than the first underground space area and greater than a second underground space area, the underground space area resource score is 0.5; step S219, if the underground space area is less than or equal to the second underground space area, the underground space area resource score is 0; step S2110, the year resource score, the number of floors resource score and the underground space area resource score are weighted and summed to determine the inherent resource score of the underground space of a plurality of regions.

[0092] According to one embodiment of the present application, the inherent resource score of the underground space is determined based on three dimensions (construction year, number of underground floors and underground space area), each dimension has three different score levels (1, 0.5, 0). If the construction year of the underground space is greater than or equal to a preset first year (for example, 2005), the year resource score is 1, if the construction year is less than the first year but greater than a second year (for example, 1985), the year resource score is 0.5, if the construction year is less than or equal to the second year, the year resource score is 0. The construction year of the underground space before the first year is relatively new, the construction technology level is high and the use condition is good, therefore, the year resource score is high. If the number of underground floors is greater than or equal to a preset first number of floors (for example, 3 floors), the number of floors resource score is 1, if the number of underground floors is less than the first number of floors but greater than a second number of floors (for example, 1 floor), the number of floors resource score is 0.5, if the number of underground floors is less than or equal to the second number of floors, the number of floors resource score is 0. The depth of the underground space above the second number of floors is deep, and the functions are more (for example, commercial service floor, entertainment and sports floor, parking floor), therefore, the number of floors resource score is high. If the underground space area is greater than or equal to a preset first underground space area (for example, 5000m 2), the underground space area resource score is set to 1, if the underground space area is less than the first underground space area but greater than the second underground space area (for example, 1000m 2 ), the underground space area resource score is set to 0.5, and if the underground space area is less than or equal to the second underground space area, the underground space area resource score is set to 0. The greater the underground space area, the greater the building scale, and therefore, the higher the underground space area resource score. The age resource score, the number of layers resource score and the underground space area resource score are weighted and summed to determine the inherent resource score of the underground space in the plurality of regions. For example, the age resource score is assigned a weight value of 0.4, the number of layers resource score is assigned a weight value of 0.3, and the underground space area resource score is assigned a weight value of 0.3. The greater the inherent resource score, the greater the inherent resource value of the underground space.

[0093] According to an embodiment of the present application, step S22 comprises: step S221, if the number of construction projects is greater than or equal to the preset number of construction projects, the update resource score is set to 1; and step S222, if the number of construction projects is less than the preset number of construction projects, the update resource score is set to 0.

[0094] According to an embodiment of the present application, the number of construction projects is compared with the preset number of construction projects (for example, 1) to determine the size relationship. If the number of construction projects is greater than or equal to the preset number of construction projects, the update resource score is set to 1, indicating that there are construction projects in progress in the underground space in the region, i.e., the region can bring resource value-added through the update and reconstruction of the underground space. If the number of construction projects is less than the preset number of construction projects, the update resource score is set to 0, indicating that there are no construction projects in progress in the underground space in the region, i.e., the region cannot bring resource value-added through the update and reconstruction of the underground space. Therefore, the greater the update resource score, the greater the resource value-added of the underground space.

[0095] In this way, the inherent resource value and the resource value-added brought by the update and reconstruction of the underground space can be comprehensively and meticulously evaluated through the housing census data and the number of construction projects, so as to determine the resource potential score of the underground space. Through the evaluation of the current resources and future development potential of the underground space, it is helpful to more accurately understand the actual situation of the underground space in each region and improve the comprehensiveness, reliability and scientificity of the resource potential score.

[0096] According to one embodiment of the present application, in step S3, the above-ground data of multiple regions in the current date is obtained, wherein the above-ground data comprises land price, population density and volume rate. The land price reflects the economic value of the land, the higher the land price, the more prosperous the above-ground of the region, and the more need to develop and utilize the underground space. The land price can be obtained from the official website of the local natural resources and planning bureau. The population density reflects the degree of population aggregation in the region, the greater the population density, the greater the flow of people on the ground of the region, and the more need to develop and utilize the underground space. The population density can be obtained from the national statistical bureau. The volume rate reflects the intensity of land development, that is, the ratio of the total building area of the building to the area of the plot, the greater the volume rate, the greater the intensity of land development on the ground of the region, and the more need to develop and utilize the underground space. The volume rate can be obtained by referring to the latest volume rate published by the local urban planning department or construction department.

[0097] According to one embodiment of the present application, in step S4, the development potential score of the underground space of multiple regions is determined according to the above-ground data.

[0098] Figure 3 An exemplary flow chart of calculating the development potential score according to an embodiment of the present application is shown.

[0099] According to one embodiment of the present application, step S4 comprises: step S41, setting the highest land price, the maximum population density and the highest volume rate of multiple regions in the city as a preset land price, a preset population density and a preset volume rate; step S42, determining an above-ground state vector according to the land price, the population density and the volume rate; step S43, determining an above-ground preset state vector according to the preset land price, the preset population density and the preset volume rate; and step S44, calculating the cosine similarity of the above-ground state vector and the above-ground preset state vector to determine the development potential score of the underground space of multiple regions.

[0100] According to one embodiment of the present application, in step S41, the preset land price, the preset population density and the preset volume rate are set, and the preset values represent the expectation or standard of the development state of the above-ground space of the region. The highest land price, the maximum population density and the highest volume rate in multiple regions are taken as the corresponding preset values.

[0101] According to one embodiment of the present application, in step S42, the actual land price, the population density and the volume rate of each region are converted into an above-ground state vector which can be quantified and can comprehensively reflect the development state of the above-ground space of the region.

[0102] According to one embodiment of the present application, in step S43, the preset land price, the preset population density and the preset volume rate are converted into an above-ground preset state vector which represents the expectation or standard of the development state of the above-ground space of the region.

[0103] According to one embodiment of the present application, in step S44, by calculating the cosine similarity between the aboveground state vector and the aboveground preset state vector, the development degree of the aboveground space can be reflected, and the development potential of the underground space can be further reflected, so as to determine the development potential score of the underground space.

[0104] According to one embodiment of the present application, the cosine similarity between the aboveground state vector and the aboveground preset state vector is calculated to determine the development potential score of the underground space in the plurality of regions, comprising: determining the development potential score D i ,

[0105]

[0106] wherein L i is the land price of the i-th region, L [ is the preset land price, ρ i is the population density of the i-th region, ρ p is the preset population density, R i is the volume rate of the i-th region, R p is the preset volume rate, is the aboveground state vector, is the transpose vector of , is the aboveground preset state vector.

[0107] According to one embodiment of the present application, in formula (1), is the cosine similarity between the aboveground state vector and the aboveground preset state vector, that is, represents the development potential score of the underground space. The higher the development potential score, the closer the actual development state of the aboveground space in the region to the expected state, and the greater the development potential of the underground space. Conversely, the lower the development potential score, the smaller the development potential of the underground space.

[0108] In this way, the cosine similarity between the aboveground state vector and the aboveground preset state vector can be calculated to determine the development potential score of the underground space. By comprehensively considering the land price, population density and volume rate, the development degree of the aboveground space can be reflected, so as to more comprehensively and accurately evaluate the development potential of the underground space, and realize the saving and efficient use of land resources.

[0109] According to one embodiment of the present application, in step S5, the remote sensing images of the plurality of regions are acquired by a remote sensing sensor carried on a remote sensing platform (such as a satellite, an airplane, etc.).

[0110] According to one embodiment of the present application, in step S6, according to the remote sensing images, the development risk score of the underground space in the plurality of regions is determined.

[0111] Figure 4 An exemplary flow chart of calculating the development risk score according to an embodiment of the present application is shown.

[0112] According to one embodiment of the present application, step S6 comprises: step S61, determining the historical and cultural area and the lake park area in the remote sensing image; step S62, obtaining the area of each region according to the remote sensing image; step S63, adding the historical and cultural area and the lake park area, and dividing by the value of the area of the region to determine the protection score; step S64, randomly setting a plurality of sampling regions in the unconstructed area of each region, and obtaining the thickness, compressive strength and shear strength of the rock stratum of the sampling region; step S65, determining the mechanical score of the underground rock and soil of the plurality of regions according to the thickness, compressive strength and shear strength of the rock stratum; and step S66, weighting and summing the protection score and the value of 1 minus the mechanical score of the underground rock and soil to determine the development risk score of the underground space of the plurality of regions.

[0113] According to one embodiment of the present application, in step S61, the historical and cultural area and the lake park area of the plurality of regions are accurately identified and measured by remote sensing image technology.

[0114] According to one embodiment of the present application, in step S62, the overall range of each region is defined by remote sensing image, and the area of the region is calculated.

[0115] According to one embodiment of the present application, in step S63, the historical and cultural area and the lake park area are added and divided by the area of the region, and the result is the protection score. The protection score reflects the relative level of historical and cultural and natural environment protection in the region. The greater the protection score, the greater the range that needs to be protected in the region, and the more limited the development of the underground space. Therefore, the development of the underground space is more likely to damage the protected area, and thus the development risk of the underground space is higher.

[0116] According to one embodiment of the present application, in step S64, a plurality of sampling regions are randomly selected and set in the unconstructed area of each region, and the key parameters of the thickness, compressive strength and shear strength of the rock stratum are obtained by exploration of the sampling region. The thickness of the rock stratum reflects the continuity and stability of the rock stratum (which can be obtained by a geological radar), the compressive strength reflects the bearing capacity of the rock (which can be obtained by a point load test), and the shear strength reflects the shear resistance of the rock and soil (which can be obtained by a direct shear test or a triaxial test).

[0117] According to one embodiment of the present application, in step S65, the mechanical score of the underground rock and soil of the plurality of regions is determined according to the thickness, compressive strength and shear strength of the rock stratum.

[0118] According to one embodiment of the present application, in step S66, the protection score and the result of 1 minus the underground rock-soil mechanics score are weighted and summed, and the obtained value is the development risk score of the underground space of the plurality of regions, for example, the protection score is assigned a weight value of 0.4, and the result of 1 minus the underground rock-soil mechanics score is assigned a weight value of 0.6, the higher the development risk score, the greater the development risk of the underground space of the region, and the development risk score comprehensively considers multiple factors such as the historical and cultural protection of the region, the natural environment condition, and the mechanical properties of the underground rock-soil, thereby improving the comprehensiveness of the development risk score.

[0119] According to one embodiment of the present application, the mechanical score of the underground rock-soil of the plurality of regions is determined according to the thickness, the compressive strength and the shear strength of the rock layer, comprising: determining the mechanical score F i ,

[0120]

[0121] wherein h i,j is the thickness of the rock layer of the jth sampling area of the ith region, USC i,j is the compressive strength of the jth sampling area of the ith region, USC p is the compressive strength threshold, τ i,j is the shear strength of the jth sampling area of the ith region, τ p is the shear strength threshold, N is the number of sampling areas, j≤N, and i, j and N are positive integers, max is the maximum value function, and min is the minimum value function.

[0122] According to one embodiment of the present application, in formula (2), is the average value of the thickness of the rock layer of the plurality of sampling areas of the ith region, is the difference between the maximum value of the thickness of the rock layer of the plurality of sampling areas of the ith region and the minimum value of the thickness of the rock layer of the plurality of sampling areas, and the ratio of the difference to the average value of the thickness of the rock layer of the plurality of sampling areas of the ith region, the larger the ratio, the more uneven the thickness of the rock layer of the ith region, is the result of 1 minus the ratio, the larger the result, the more uniform the thickness of the rock layer of the ith region. is the relative difference between the compressive strength of the jth sampling area of the ith region and the compressive strength threshold, the larger the relative difference, the smaller the compressive strength of the sampling area, and the more prone to deformation of the underground rock-soil, wherein the compressive strength threshold is the maximum value of the compressive strength of the plurality of sampling areas of the plurality of regions. A relative difference between the shear strength of the i-th region and the j-th sampling area and a shear strength threshold value, the greater the relative difference, the smaller the shear strength of the sampling area, and the more easily broken the underground rock and soil, wherein the shear strength threshold value is the maximum value of the shear strength of the multiple regions and multiple sampling areas. A value of an average of a product of a relative difference between the compressive strength of the i-th region and multiple sampling areas and a compressive strength threshold value minus 1 and a relative difference between the shear strength and the shear strength threshold value, the greater the value, the greater the compressive strength and shear strength of the region, that is, the underground rock and soil of the region is not easy to deform and break. The value is And Multiplying, the mechanical score of the underground rock and soil of the i-th region is obtained, the greater the mechanical score of the underground rock and soil, the more uniform the geology of the region and the more suitable for the development of underground space.

[0123] In this way, based on the thickness, compressive strength and shear strength of the rock stratum, the thickness uniformity and strength stability of the underground rock and soil can be comprehensively reflected, and by evaluating the mechanical properties of the underground rock and soil, potential geological risks can be better identified, and the accuracy and reliability of the mechanical score of the underground rock and soil can be improved.

[0124] According to one embodiment of the present application, in step S7, the underground space development and utilization suitability score of the multiple regions is determined according to the resource potential score, the development potential score and the development risk score.

[0125] According to one embodiment of the present application, step S7 comprises: step S71, weighted sum of the resource potential score, the development potential score and 1 minus the development risk score to determine the underground space development and utilization suitability score of the multiple regions.

[0126] According to one embodiment of the present application, in step S71, the resource potential score reflects the value of the resources of the underground space itself and the updated resources, the development potential score measures the development feasibility of the underground space in the economic aspect, and the development risk score evaluates various risks and challenges that the underground space development may encounter. Weighted sum of the resource potential score, the development potential score and 1 minus the development risk score can obtain the underground space development and utilization suitability score of the multiple regions, for example, the resource potential score is assigned a weight value of 1 / 3, the development potential score is assigned a weight value of 1 / 3, and the result of 1 minus the development risk score is assigned a weight value of 1 / 3, the higher the underground space development and utilization suitability score, the more suitable the region for the development and utilization of underground space.

[0127] According to one embodiment of the present application, in step S8, the underground space development and utilization suitability scores of the plurality of regions are averaged to obtain the underground space development and utilization suitability score of the highly developed region, and the higher the underground space development and utilization suitability score of the highly developed region, the more suitable the highly developed region is for the development and utilization of underground space.

[0128] The underground space development and utilization suitability evaluation method for highly developed regions according to the embodiment of the present application provides a comprehensive evaluation perspective for the development and utilization of underground space through various information sources such as housing census data, construction project quantity, ground data, and remote sensing images, which helps to more accurately reflect the resource potential, development potential, and development risk of underground space in each region, so as to make more reasonable decisions. By quantifying the resource potential score, the development potential score, and the development risk score, the underground space development and utilization suitability score of the highly developed region can be obtained, which helps to better grasp the overall trend and risk of underground space development and improve the management efficiency of the highly developed region. When determining the resource potential score of underground space, the inherent resource value of underground space and the resource value-added brought by renovation and reconstruction can be comprehensively and meticulously evaluated through housing census data and construction project quantity, so as to determine the resource potential score of underground space. By evaluating the current resources and future development potential of underground space, it is helpful to more accurately understand the actual situation of underground space in each region and improve the comprehensiveness, reliability, and scientificity of the resource potential score. When determining the development potential score of underground space, the cosine similarity between the ground state vector and the ground preset state vector can be calculated to determine the development potential score of underground space. By comprehensively considering land price, population density, and volume rate, the development degree of ground space can be reflected, so as to more comprehensively and accurately evaluate the development potential of underground space and realize the saving and efficient use of land resources. When determining the mechanical score of underground rock and soil, the thickness, compressive strength, and shear strength of the rock layer can be comprehensively reflected, and the mechanical properties of underground rock and soil can be evaluated to better identify potential geological risks and improve the accuracy and reliability of the mechanical score of underground rock and soil.

[0129] Figure 5 An exemplary block diagram of an underground space development and utilization suitability evaluation system for highly developed regions according to an embodiment of the present application is shown, which comprises:

[0130] A housing census data and construction project quantity module is configured to obtain housing census data and construction project quantity of a plurality of regions of a city of the highly developed region at a current date.

[0131] A resource potential score module is configured to determine resource potential scores of underground space of the plurality of regions according to the housing census data and the construction project quantity.

[0132] An above-ground data module is configured to obtain above-ground data of a plurality of regions on a current date;

[0133] A development potential score module is configured to determine development potential scores of underground spaces of the plurality of regions according to the above-ground data;

[0134] A remote sensing image module is configured to obtain remote sensing images of the plurality of regions on the current date;

[0135] A development risk score module is configured to determine development risk scores of the underground spaces of the plurality of regions according to the remote sensing images;

[0136] A region underground space development and utilization suitability score module is configured to determine underground space development and utilization suitability scores of the plurality of regions according to the resource potential scores, the development potential scores and the development risk scores;

[0137] A highly built-up region underground space development and utilization suitability score module is configured to average the underground space development and utilization suitability scores of the plurality of regions to obtain a highly built-up region underground space development and utilization suitability score.

[0138] The present application can be a method, an apparatus, a system and / or a computer program product. The computer program product can include a computer readable storage medium having computer readable program instructions embodied therewith, wherein the computer readable program instructions are configured to cause a processor to perform various aspects of the present application.

[0139] Those skilled in the art should understand that the above-described embodiments of the present application shown in the description and drawings are only used as examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The functional and structural principles of the present application have been shown and described in the embodiments, and the embodiments of the present application can be modified or changed in any form without departing from the principles.

Claims

1. A method for evaluating the suitability of underground space development and utilization in highly built-up areas, characterized in that, include: On the current date, obtain housing census data and the number of construction projects for multiple areas in a highly developed city. Based on the housing census data and the number of construction projects, resource potential scores for underground space in multiple regions were determined. Obtain above-ground data for multiple regions as of the current date, wherein the above-ground data includes land price, population density, and plot ratio; Based on the above-ground data, the development potential scores of underground space in multiple regions were determined, including: Set the highest land price, maximum population density, and maximum plot ratio for multiple areas of the city as preset land price, preset population density, and preset plot ratio; The above-ground state vector is determined based on the land price, the population density, and the plot ratio; Based on the preset land price, the preset population density, and the preset plot ratio, determine the preset above-ground state vector; Calculate the cosine similarity between the above-ground state vector and the above-ground preset state vector to determine the development potential score of underground space in multiple regions; Acquire remote sensing images of multiple regions on the current date; Based on the remote sensing images, the development risk scores of underground space in multiple regions are determined, including: determining the area of ​​historical and cultural areas and the area of ​​lake parks in multiple regions in the remote sensing images; Based on the remote sensing images, obtain the area of ​​each region; The protection score is determined by adding the area of ​​the historical and cultural area to the area of ​​the lake park and dividing by the area of ​​the region. Multiple sampling areas were randomly set up in the undeveloped areas of each region to obtain the thickness, compressive strength and shear strength of the rock strata in the sampling areas. Based on the thickness of the rock strata, the compressive strength, and the shear strength, the mechanical scores of underground soil and rock in multiple regions are determined; The protection score is weighted and summed with the value of 1 minus the mechanical score of the underground soil and rock to determine the development risk score of underground space in multiple regions. Based on the resource potential score, the development potential score, and the development risk score, the suitability scores for underground space development and utilization in multiple regions are determined. The suitability scores for underground space development and utilization in the multiple regions are averaged to obtain the suitability scores for underground space development and utilization in highly developed areas.

2. The method for evaluating the suitability of underground space development and utilization in highly built-up areas according to claim 1, characterized in that, The housing census data includes the construction year, number of underground floors, and area of ​​existing underground spaces, while the number of construction projects refers to the number of underground space projects currently under construction.

3. The method for evaluating the suitability of underground space development and utilization in highly built-up areas according to claim 2, characterized in that, Based on the aforementioned housing census data and the number of construction projects, resource potential scores for underground space in multiple regions were determined, including: Based on the aforementioned housing census data, the inherent resource scores of underground spaces in multiple regions were determined; Based on the number of construction projects, the resource scores for the renewal of underground space in multiple regions are determined; The resource potential score of underground space in multiple regions is determined by weighted averaging of the intrinsic resource score and the updated resource score.

4. The method for evaluating the suitability of underground space development and utilization in highly built-up areas according to claim 3, characterized in that, Based on the aforementioned housing census data, the inherent resource scores of underground space in multiple areas were determined, including: If the construction year is greater than or equal to the first year, the year resource score is 1. If the construction year is less than the first year but greater than the second year, the year resource score is 0.

5. If the construction year is less than or equal to the second year, the year resource score is 0; If the number of underground layers is greater than or equal to the number of the first layer, the layer resource score is 1. If the number of underground floors is less than the first number of underground floors but greater than the second number of underground floors, then the floor resource score is 0.

5. If the number of underground floors is less than or equal to the number of the second underground floors, the floor resource score is 0. If the area of ​​the underground space is greater than or equal to the area of ​​the first underground space, the resource score for the underground space area is 1. If the area of ​​the underground space is smaller than the area of ​​the first underground space but larger than the area of ​​the second underground space, then the resource score for the underground space area is 0.

5. If the area of ​​the underground space is less than or equal to the area of ​​the second underground space, the resource score for the underground space area is 0. The resource scores for underground spaces in multiple regions are determined by weighted summation of the resource scores for the age, the number of layers, and the area of ​​underground space.

5. The method for evaluating the suitability of underground space development and utilization in highly built-up areas according to claim 3, characterized in that, Based on the number of construction projects, resource scores for the renewal of underground space in multiple regions are determined, including: If the number of construction projects is greater than or equal to the preset number of construction projects, the updated resource score is set to 1. If the number of construction projects is less than the preset number of construction projects, the updated resource score will be 0.

6. The method for evaluating the suitability of underground space development and utilization in highly built-up areas according to claim 1, characterized in that, Based on the thickness of the rock strata, the compressive strength, and the shear strength, the mechanical scores of underground soil and rock in multiple regions are determined, including: According to the formula Determine the mechanical score of the underground soil and rock in the i-th region. ,in, Let be the thickness of the rock strata in the j-th sampling area of ​​the i-th region. Let the compressive strength be the value of the j-th sampling area in the i-th region. The compressive strength threshold, Let be the shear strength of the j-th sampling area in the i-th region. is the shear strength threshold, N is the number of sampling regions, j≤N, and i, j and N are all positive integers, max is the function to take the maximum value, and min is the function to take the minimum value.

7. The method for evaluating the suitability of underground space development and utilization in highly built-up areas according to claim 1, characterized in that, Based on the resource potential score, the development potential score, and the development risk score, suitability scores for underground space development and utilization in multiple regions are determined, including: The resource potential score, the development potential score, and 1 minus the development risk score are weighted and summed to determine the suitability score for underground space development and utilization in multiple regions.

8. A suitability assessment system for underground space development and utilization in highly built-up areas, used to perform the suitability assessment method for underground space development and utilization in highly built-up areas as described in any one of claims 1-7, characterized in that, include: The Housing Census Data and Construction Project Quantity module is used to obtain housing census data and construction project quantities for multiple areas of a highly developed city as of the current date. The resource potential scoring module is used to determine the resource potential scores of underground space in multiple regions based on the housing census data and the number of construction projects. The ground data module is used to acquire ground data from multiple regions for the current date. The development potential scoring module is used to determine the development potential score of underground space in multiple regions based on the above-ground data. The remote sensing image module is used to acquire remote sensing images of multiple regions on the current date. A risk scoring module was developed to determine the development risk score of underground space in multiple regions based on the remote sensing images. The underground space development and utilization suitability scoring module is used to determine the underground space development and utilization suitability scores of multiple regions based on the resource potential score, the development potential score, and the development risk score. The underground space development and utilization suitability scoring module for highly developed areas is used to average the underground space development and utilization suitability scores of the multiple areas to obtain the underground space development and utilization suitability score for highly developed areas.

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