Foundation pit sand content detection method, device and equipment and storage medium

Abstract

The embodiment of the invention discloses a foundation pit sand content detection method, device and equipment and a storage medium, and the detection method comprises the steps: obtaining boundary control point coordinates, boundary control point sand content, exploration hole coordinates and exploration hole sand content in a to-be-detected foundation pit based on a geological exploration report of the to-be-detected foundation pit; triangulation is carried out based on the boundary control points and the to-be-detected foundation pit, and an actual excavation triangular mesh in the to-be-detected foundation pit is obtained; according to the boundary control point coordinates, the boundary control point sand content, the survey hole coordinates and the survey hole sand content, the sub-sand content corresponding to each triangle in the actually excavated triangular mesh is calculated; and the total sand content of the foundation pit to be detected is obtained by integrating the sub-sand content corresponding to each triangle in the actually excavated triangular mesh. According to the scheme, the overall sand content of the foundation pit is calculated according to the soil test data of the survey hole in the geological survey report, and the technical problems that the planning consumption cost of existing foundation pit resource disposal is large, and environmental hazards are large are solved.

Description

Technical Field

[0001] The present application relates to the technical field of resource utilization, and specifically to a method, device, equipment and storage medium for detecting sand content in a foundation pit. Background Art

[0002] With the acceleration of urbanization, the output of foundation pit debris has increased rapidly. However, the treatment methods of foundation pit debris are relatively simple, mainly: transport to surrounding urban areas for land and sea landfill, local landfill and backfill at construction sites. However, some foundation pits may contain a large amount of sand, which is a valuable natural resource. If it can be disposed of as a resource, it will undoubtedly produce huge economic and environmental benefits.

[0003] When excavating existing foundation pits, resource disposal planning can only be carried out after the sand layer is exposed. At this time, the disposal method is limited to external transportation, screening and washing. The transportation process not only consumes a lot of costs, but also causes environmental damage. If the sand content in the foundation pit can be calculated before the foundation pit is excavated, and the resource disposal plan of the entire foundation pit can be planned in advance, the overall benefit of the resource disposal of the foundation pit will be significantly improved.

[0004] Therefore, providing a method for detecting the sand content in a foundation pit is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of this, the embodiments of the present application provide a method, device, equipment and storage medium for detecting the sand content in a foundation pit, which solves the problem that when excavating a foundation pit, the sand layer must be exposed before resource disposal can be planned. This disposal method is limited to external screening and washing, and the transportation process not only consumes a lot of costs, but also is accompanied by technical problems such as environmental damage.

[0006] The first aspect of the present application provides a method for detecting sand content in a foundation pit, comprising:

[0007] Based on the geological survey report of the foundation pit to be detected, the boundary control point coordinates and the boundary control point sand content of the boundary control point in the foundation pit to be detected, as well as the exploration hole coordinates and the exploration hole sand content of the exploration hole are obtained;

[0008] Perform triangulation based on the boundary control points and the foundation pit to be detected to obtain an actual excavation triangular mesh corresponding to an actual excavation area in the foundation pit to be detected;

[0009] Calculate the sand content corresponding to each triangle in the actual excavation triangular grid according to the boundary control point coordinates, the boundary control point sand content, the exploration hole coordinates and the exploration hole sand content;

[0010] The total sand content of the foundation pit to be inspected is obtained by comprehensively analyzing the sand content corresponding to each triangle in the actual excavation triangular grid.

[0011] Furthermore, the triangulation is performed based on the boundary control points and the foundation pit to be detected to obtain an actual excavation triangular mesh corresponding to the actual excavation area in the foundation pit to be detected, specifically including:

[0012] Taking the exploration hole as a triangle vertex, triangulating the excavation surface of the foundation pit to be inspected to obtain a first triangular mesh;

[0013] The excavation surface is triangulated with the exploration hole, the boundary control point and the first intersection point as triangle vertices to obtain a second triangular mesh, wherein the first intersection point is the intersection point of the excavation boundary of the foundation pit to be detected and the grid line in the first triangular mesh, and the excavation boundary is the boundary of the simply connected plane enclosed by the boundary control points;

[0014] The triangular mesh of the second triangular mesh outside the boundary control point and the first intersection point is deleted to obtain the actual excavation triangular mesh.

[0015] Further, the calculating of the sand content corresponding to each triangle in the actual excavation triangular grid according to the boundary control point coordinates, the boundary control point sand content, the exploration hole coordinates and the exploration hole sand content specifically includes:

[0016] Determine the sand content corresponding to each triangle in the actual excavation triangular grid according to the sand content of the boundary control point and the sand content of the exploration hole;

[0017] Determine the volume of the sand layer corresponding to each triangle in the actual excavation triangular grid according to the coordinates of the boundary control point and the coordinates of the exploration hole;

[0018] The sand content corresponding to each triangle in the actual excavation triangular grid is multiplied by the sand content and the volume of the sand layer to obtain the sand content corresponding to the triangle.

[0019] Furthermore, the step of determining the sand content corresponding to each triangle in the actual excavation triangular mesh according to the sand content of the boundary control point and the sand content of the exploration hole specifically includes:

[0020] Calculate the sand content of the triangle vertices of each triangle in the actual excavation triangular mesh according to the sand content of the boundary control point and the sand content of the exploration hole;

[0021] Based on the preset triangle sand content calculation formula, the sand content corresponding to the triangle is calculated using the triangle vertex sand content of each triangle in the actual excavation triangular mesh. The triangle sand content calculation formula is:

[0022] SR=α×SR1+β×SR2+γ×SR3

[0023] Among them, SR is the sand content corresponding to the triangle, SR1, SR2 and SR3 are the sand contents of the three vertices of the triangle respectively, α, β and γ are coefficients, and γ = 1-α-β.

[0024] Furthermore, the sand content of the triangle vertices of each triangle in the actual excavation triangular mesh is calculated according to the sand content of the boundary control point and the sand content of the exploration hole, specifically including:

[0025] When the triangle vertex in the actual excavation triangular mesh is the exploration hole, the sand content of the triangle vertex is equal to the exploration hole sand content of the corresponding exploration hole;

[0026] When a triangle vertex in the actual excavation triangular mesh is the boundary control point, the sand content of the triangle vertex is equal to the boundary control point sand content of the corresponding boundary control point;

[0027] When the triangle vertex in the actual excavation triangular mesh is the first intersection point, the sand content of the triangle vertex is equal to the intersection sand content of the corresponding first intersection point, and the intersection sand content is:

[0028]

[0029] Among them, SR yj is the sand content at the intersection, SR a and SR b are the sand contents of the exploration holes corresponding to the first endpoint and the second endpoint of the grid line in the first triangular grid where the first intersection is located, and A and B are the distances from the first intersection to the first endpoint and the second endpoint, respectively.

[0030] Furthermore, the determining of the volume of the sand layer corresponding to each triangle in the actual excavation triangular grid according to the coordinates of the boundary control point and the coordinates of the exploration hole specifically includes:

[0031] Based on the coordinates of the boundary control points and the coordinates of the exploration holes, determining the coordinates of the triangle vertices of each triangle in the actual excavation triangular mesh and the buried depth of the sand layer at the triangle vertices;

[0032] The volume of the sand layer of the corresponding triangle is determined according to the coordinates of the triangle vertices of each triangle in the actual excavation triangular grid and the buried depth of the sand layer at the triangle vertices.

[0033] Furthermore, the determining of the sand layer volume of the corresponding triangle according to the triangle vertex coordinates of each triangle in the actual excavation triangular mesh and the buried depth of the sand layer at the triangle vertex specifically includes:

[0034] Based on a preset sand layer volume calculation formula, the sand layer volume of the corresponding triangle is determined according to the triangle vertex coordinates of each triangle in the actual excavation triangular mesh and the buried depth of the triangle vertex sand layer. The sand layer volume calculation formula includes:

[0035]

[0036] Among them, V is the volume of the sand layer corresponding to the triangle, S is the area of ​​the triangle, and H x1 , H x2 and H x3 are the buried depths of the lower boundary points of the sand layer corresponding to the three vertices of the triangle; H s1 , H s2 and H s3 They are the buried depths of the dividing points on the sand layer corresponding to the three vertices of the triangle.

[0037] The second aspect of the present application provides a foundation pit sand content detection device, comprising:

[0038] A first acquisition unit is used to acquire boundary control point coordinates and boundary control point sand content of boundary control points in the foundation pit to be detected, as well as exploration hole coordinates and exploration hole sand content of the exploration hole based on the geological survey report of the foundation pit to be detected;

[0039] A triangulation unit, configured to perform triangulation based on the boundary control points and the foundation pit to be detected, to obtain an actual excavation triangular mesh corresponding to an actual excavation area in the foundation pit to be detected;

[0040] A first calculation unit is used to calculate the sand content corresponding to each triangle in the actual excavation triangular grid according to the boundary control point coordinates, the boundary control point sand content, the exploration hole coordinates and the exploration hole sand content;

[0041] The second calculation unit is used to obtain the total sand content of the foundation pit to be detected by comprehensively analyzing the sand content corresponding to each triangle in the actual excavation triangular grid.

[0042] A third aspect of the present application provides a foundation pit sand content detection device, the device comprising a processor and a memory;

[0043] The memory is used to store program code and transmit the program code to the processor;

[0044] The processor is used to execute any one of the foundation pit sand content detection methods described in the first aspect according to the instructions in the program code.

[0045] A fourth aspect of the present application provides a storage medium having computer program instructions stored thereon, and when the program instructions are executed by a processor, any one of the methods for detecting sand content in a foundation pit described in the first aspect is implemented.

[0046] One of the above technical solutions has the following advantages and effects:

[0047] A method for detecting the sand content of a foundation pit in the above scheme includes: based on the geological survey report of the foundation pit to be detected, obtaining the boundary control point coordinates and the boundary control point sand content of the boundary control point in the foundation pit to be detected, as well as the exploration hole coordinates and the exploration hole sand content of the exploration hole; triangulating based on the boundary control points and the foundation pit to be detected, and obtaining the actual excavation triangular mesh corresponding to the actual excavation area in the foundation pit to be detected; according to the boundary control point coordinates, the boundary control point sand content, the exploration hole coordinates and the exploration hole sand content, calculating the corresponding sand content of each triangle in the actual excavation triangular mesh; combining the corresponding sand content of each triangle in the actual excavation triangular mesh, the total sand content of the foundation pit to be detected is obtained. It can be seen from the above scheme that this application uses the geotechnical test data of the exploration hole in the geological survey report to calculate the overall sand content of the foundation pit, which solves the problem that when the existing foundation pit is excavated, the resource disposal planning must be carried out only after the sand layer is exposed. This disposal method is limited to external transportation screening and washing, and the transportation process not only consumes a lot of costs, but also is accompanied by technical problems of environmental harm. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0049] Figure 1 It is a method schematic diagram of Example 1 of a method for detecting sand content in a foundation pit provided in an embodiment of the present application;

[0050] Figure 2 This is a method schematic diagram of Example 2 of a method for detecting sand content in a foundation pit provided in an embodiment of the present application;

[0051] Figures 3 to 8 It is a schematic diagram of an application example of a method for detecting sand content in a foundation pit provided in an embodiment of the present application;

[0052] Fig. 9 This is a schematic diagram of the structure of an embodiment of a foundation pit sand content detection device provided in an embodiment of the present application. Figure 1 ;

[0053] Fig.10 It is a structural schematic diagram of an embodiment of a foundation pit sand content detection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0054] The embodiments of the present application provide a method, device, equipment and storage medium for detecting the sand content in a foundation pit, which solves the problem that when excavating a foundation pit, the sand layer must be exposed before resource disposal can be planned. This disposal method is limited to external transportation and screening and washing, and the transportation process not only consumes a lot of costs, but also has the technical problem of environmental damage.

[0055] The following will be combined with the drawings in this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of this application.

[0056] For easier understanding, see Figure 1 , Figure 1 This is a flow chart of a method for detecting the sand content in a foundation pit according to an embodiment of the present application. Figure 1 As shown, the method for detecting the sand content in the foundation pit in this embodiment specifically includes:

[0057] Step 101: Based on the geological survey report of the foundation pit to be detected, the boundary control point coordinates and the boundary control point sand content of the boundary control points in the foundation pit to be detected, as well as the survey hole coordinates and the survey hole sand content of the survey hole are obtained.

[0058] It should be noted that the geological survey report records the coordinates of the survey hole, soil layer information, geotechnical test data, and coordinates of the boundary control points, based on which the sand content of the boundary control points and the sand content of the survey holes can be calculated.

[0059] Step 102: triangulate based on the boundary control points and the foundation pit to be detected to obtain an actual excavation triangular mesh corresponding to the actual excavation area in the foundation pit to be detected.

[0060] It can be understood that the actual excavation triangular mesh corresponds to the actual excavation area in the foundation pit to be detected, that is, the actual excavation triangular mesh represents the actual excavation area in the foundation pit to be detected. Specifically, when the foundation pit to be detected is triangulated, the actual excavation triangular mesh is composed of multiple triangles, all of which cover the entire plane, and there is no overlap between the triangles.

[0061] Step 103: Calculate the sand content corresponding to each triangle in the actual excavation triangular grid according to the coordinates of the boundary control points, the sand content of the boundary control points, the coordinates of the survey holes, and the sand content of the survey holes.

[0062] After obtaining the coordinates of the boundary control points, the sand content of the boundary control points, the coordinates of the survey holes and the sand content of the survey holes, the sand content corresponding to each triangle in the actual excavation triangular grid can be calculated based on the coordinates of the boundary control points, the sand content of the boundary control points, the coordinates of the survey holes and the sand content of the survey holes.

[0063] Step 104: The total sand content of the foundation pit to be inspected is obtained by comprehensively analyzing the sand content corresponding to each triangle in the actual excavation triangular grid.

[0064] It should be noted that the actual excavation triangular mesh represents the actual excavation area in the foundation pit to be tested, and the actual excavation triangular mesh is composed of a number of non-overlapping triangles. Therefore, after obtaining the sand content corresponding to each triangle in the actual excavation triangular mesh, the total sand content of the foundation pit to be tested can be obtained by combining the sand content corresponding to each triangle. When calculating specifically, the total sand content corresponding to the foundation pit to be tested can be obtained by summing the sand content corresponding to each triangle in the actual excavation triangular mesh.

[0065] The sand content detection method of the foundation pit in this embodiment uses the geotechnical test data of the exploration hole in the geological survey report to calculate the sand content of the entire foundation pit, which solves the problem that when the existing foundation pit is excavated, the resource disposal planning can only be carried out after the sand layer is exposed. This disposal method is limited to external transportation and screening and washing, and the transportation process not only consumes a lot of costs, but also has the technical problem of environmental damage.

[0066] The above is the first embodiment of a method for detecting sand content in a foundation pit provided in an embodiment of the present application, and the following is the second embodiment of a method for detecting sand content in a foundation pit provided in an embodiment of the present application.

[0067] See also Figure 2 , Figure 2 Another method flow chart of a method for detecting sand content in a foundation pit in an embodiment of the present application is shown in FIG. Figure 2 As shown, the method for detecting the sand content in the foundation pit in this embodiment specifically includes:

[0068] Step 201: Based on the geological survey report of the foundation pit to be detected, the boundary control point coordinates and the boundary control point sand content of the boundary control points in the foundation pit to be detected, as well as the survey hole coordinates and the survey hole sand content of the survey hole are obtained.

[0069] It can be understood that the exploration holes include controlled exploration holes and uncontrolled exploration holes, and the sand content of the exploration holes includes: the sand content of the controlled exploration holes corresponding to the controlled exploration holes and the sand content of the uncontrolled exploration holes corresponding to the uncontrolled exploration holes. Correspondingly, when a sand layer is exposed in the controlled exploration holes, the sand content of the controlled exploration holes is equal to the sum of the proportions of particles with a diameter less than or equal to 5 mm in the geotechnical test report in the geological survey report, and when no sand layer is exposed in the controlled exploration holes, the sand content of the controlled exploration holes is equal to 0. When a sand layer is exposed in the uncontrolled exploration holes, the sand content of the uncontrolled exploration holes is equal to the average sand content of all the controlled exploration holes with exposed sand layers, and when no sand layer is exposed in the uncontrolled exploration holes, the sand content of the uncontrolled exploration holes is equal to 0.

[0070] Further, the sand content of the boundary control point is equal to the sand content of the survey hole that is closest to the boundary control point.

[0071] Step 202: triangulate the excavation surface of the foundation pit to be inspected with the exploration holes as triangle vertices to obtain a first triangular mesh.

[0072] like Figure 3 As shown, according to the coordinates of the boundary control points and the exploration hole coordinates in the geological survey report of the foundation pit to be inspected, the excavation surface of the foundation pit to be inspected can be known.

[0073] Specifically, when the excavation surface of the foundation pit to be inspected is triangulated to obtain the first triangular mesh, all triangles cover the entire plane and there is no overlapping between the triangles. Figure 3 The first triangular mesh obtained after triangulation of the excavation surface of the foundation pit to be inspected is as shown in Figure 4 shown.

[0074] Step 203, triangulate the excavation surface with the exploration hole, boundary control point and the first intersection point as triangle vertices to obtain a second triangular mesh, the first intersection point is the intersection point of the excavation boundary of the foundation pit to be detected and the grid line in the first triangular mesh, and the excavation boundary is the boundary of the simply connected plane enclosed by the boundary control points.

[0075] like Figure 5 As shown, after obtaining the first triangular mesh, the parameters related to the first intersection point and the excavation boundary of the foundation pit can be calculated.

[0076] Specifically, when the excavation surface of the foundation pit to be inspected is triangulated to obtain the second triangular mesh, all triangles cover the entire plane and there is no overlapping between the triangles. Figure 3 The excavation surface of the foundation pit to be inspected is triangulated, and the second triangular mesh obtained is as follows Figure 6 shown.

[0077] Step 204: Delete the triangular mesh of the second triangular mesh outside the boundary control point and the first intersection point to obtain the actual excavation triangular mesh.

[0078] The triangular mesh outside the boundary control point and the first intersection point in the second triangular mesh is not the excavation area of ​​the foundation pit to be detected. After removing this part, the remaining triangular mesh represents the actual excavation area of ​​the foundation pit to be detected. Figure 6 After deleting the triangular meshes outside the boundary control points and the first intersection point in the second triangular mesh shown in FIG. , the actual excavation triangular mesh is obtained as follows: Figure 7 shown.

[0079] Step 205: Determine the sand content corresponding to each triangle in the actual excavation triangular grid according to the sand content of the boundary control point and the sand content of the exploration hole.

[0080] Specifically, according to the sand content of the boundary control point and the sand content of the exploration hole, the sand content corresponding to each triangle in the actual excavation triangular grid is determined, including:

[0081] According to the sand content of the boundary control points and the sand content of the exploration holes, the sand content of the triangle vertices of each triangle in the actual excavation triangular grid is calculated;

[0082] Based on the preset triangle sand content calculation formula, the sand content of the triangle vertex of each triangle in the actual excavation triangular mesh is used to calculate the sand content corresponding to the triangle. The triangle sand content calculation formula is:

[0083] SR=α×SR1+β×SR2+γ×SR3

[0084] Among them, SR is the sand content corresponding to the triangle, SR1, SR2 and SR3 are the sand contents of the three vertices of the triangle respectively, α, β and γ are coefficients, and γ = 1-α-β.

[0085] Understandably,

[0086]

[0087] γ=1-α-β

[0088] Among them, x, x1, x2 and x3 are the x-coordinates of the centroid and the three vertices of the triangle respectively; y, y1, y2 and y3 are the y-coordinates of the centroid and the three vertices of the triangle respectively.

[0089] Further, in an optional implementation, the sand content of the triangle vertices of each triangle in the actual excavation triangular mesh is calculated according to the sand content of the boundary control point and the sand content of the exploration hole, specifically including:

[0090] When the triangle vertex in the actual excavation triangular mesh is an exploration hole, the sand content of the triangle vertex is equal to the exploration hole sand content of the corresponding exploration hole;

[0091] When a triangle vertex in the actual excavation triangular mesh is a boundary control point, the sand content of the triangle vertex is equal to the boundary control point sand content of the corresponding boundary control point;

[0092] When the vertex of the triangle in the actual excavation triangular grid is the first intersection, the sand content of the triangle vertex is equal to the sand content of the corresponding first intersection. The sand content of the intersection is:

[0093]

[0094] Among them, SR yj is the sand content at the intersection, SR a and SR b are the sand contents of the exploration holes corresponding to the first endpoint and the second endpoint of the grid line in the first triangular grid where the first intersection is located, and A and B are the distances from the first intersection to the first endpoint and the second endpoint, respectively.

[0095] Step 206: Determine the volume of the sand layer corresponding to each triangle in the actual excavation triangular grid according to the coordinates of the boundary control points and the coordinates of the exploration hole.

[0096] According to the coordinates of the boundary control points and the exploration hole coordinates, the volume of the sand layer corresponding to each triangle in the actual excavation triangular grid is determined, including:

[0097] Based on the coordinates of the boundary control points and the coordinates of the exploration holes, the coordinates of the triangle vertices of each triangle in the actual excavation triangular grid and the buried depth of the sand layer at the triangle vertices are determined;

[0098] According to the coordinates of the triangle vertices of each triangle in the actual excavation triangular grid and the buried depth of the sand layer at the triangle vertex, the volume of the sand layer corresponding to the triangle is determined.

[0099] In an optional implementation, the buried depth of the sand layer at the triangle vertex includes: the buried depth of the lower boundary point of the sand layer and the buried depth of the upper boundary point of the sand layer. According to the triangle vertex coordinates of each triangle in the actual excavation triangular mesh and the buried depth of the sand layer at the triangle vertex, the volume of the sand layer of the corresponding triangle is determined, specifically including:

[0100] Based on the preset sand layer volume calculation formula, the sand layer volume of the corresponding triangle is determined according to the triangle vertex coordinates of each triangle in the actual excavation triangular grid and the buried depth of the triangle vertex sand layer. The sand layer volume calculation formula includes:

[0101]

[0102] Among them, V is the volume of the sand layer corresponding to the triangle, S is the area of ​​the triangle, and H x1 , H x2 and H x3 are the buried depths of the lower boundary points of the sand layer corresponding to the three vertices of the triangle; Hs1 , H s2 and H s3 They are the buried depths of the dividing points on the sand layer corresponding to the three vertices of the triangle.

[0103] The configuration process of the buried depth of the upper boundary point of the sand layer and the buried depth of the lower boundary point of the sand layer corresponding to the triangle vertices in the third triangular mesh includes:

[0104] When the vertex of a triangle in the actual excavation triangular grid is an exploration hole and the exploration hole has a sand layer exposed, the upper boundary point burial depth and the lower boundary point burial depth of the sand layer are directly read from the geological exploration report;

[0105] When the vertex of the triangle in the actual excavation triangular grid is an exploration hole and no sand layer is exposed in the exploration hole, the buried depth of the upper boundary point of the sand layer is equal to the buried depth of the lower boundary point of the sand layer, and is equal to the buried depth of the lower boundary point of the stratum above the sand layer in the stratigraphic sequence in the geological exploration report. If the stratum above the sand layer is also not exposed, it is equal to the buried depth of the lower boundary point of the two strata above the sand layer, and so on;

[0106] When the vertex of a triangle in the actual excavation triangular grid is a boundary control point, the corresponding upper boundary point burial depth and lower boundary point burial depth of the sand layer are equal to the upper boundary point burial depth and lower boundary point burial depth of the sand layer of the exploration hole closest to the boundary control point;

[0107] When the vertex of the triangle in the actual excavation triangular mesh is the first intersection, the corresponding upper boundary point burial depth and lower boundary point burial depth of the sand layer are calculated by the following formula:

[0108]

[0109] Among them, H s and H x are the upper and lower boundary depths of the sand layer corresponding to the first intersection, respectively, sa and H xa are the upper boundary depth and the lower boundary depth of the sand layer corresponding to the first endpoint of the first triangular grid line where the first intersection point is located, respectively. sb and H xb They are respectively the buried depth of the upper boundary point of the sand layer and the buried depth of the lower boundary point of the sand layer corresponding to the second end point of the first triangular grid line where the first intersection point is located.

[0110] Step 207: multiply the sand content rate and the sand layer volume corresponding to each triangle in the actual excavation triangular grid to obtain the sand content corresponding to the triangle.

[0111] Step 208: The total sand content of the foundation pit to be inspected is obtained by comprehensively analyzing the sand content corresponding to each triangle in the actual excavation triangular grid.

[0112] like Figure 8As shown, after obtaining the sand content corresponding to each triangle in the actual excavation triangular grid, the total sand content of the foundation pit to be tested can be obtained by comprehensively combining the sand content corresponding to each triangle.

[0113] The sand content detection method of the foundation pit in this embodiment uses the geotechnical test data of the exploration hole in the geological survey report to calculate the sand content of the entire foundation pit, which solves the problem that when the existing foundation pit is excavated, the resource disposal planning must be carried out after the sand layer is exposed. This disposal method is limited to external transportation screening and washing, and the transportation process not only consumes a lot of costs, but also has the technical problem of environmental damage.

[0114] The above is the second embodiment of a method for detecting sand content in a foundation pit provided in an embodiment of the present application. The following is an embodiment of a device for detecting sand content in a foundation pit provided in an embodiment of the present application.

[0115] See also Fig. 9 In this embodiment, the embodiment of the foundation pit sand content detection device specifically includes:

[0116] The first acquisition unit 901 is used to acquire the boundary control point coordinates and the boundary control point sand content of the boundary control point in the foundation pit to be detected, and the exploration hole coordinates and the exploration hole sand content of the exploration hole based on the geological survey report of the foundation pit to be detected;

[0117] A triangulation unit 902 is used to perform triangulation based on the boundary control points and the foundation pit to be detected, and obtain an actual excavation triangular mesh corresponding to the actual excavation area in the foundation pit to be detected;

[0118] The first calculation unit 903 is used to calculate the sand content corresponding to each triangle in the actual excavation triangular grid according to the coordinates of the boundary control point, the sand content of the boundary control point, the coordinates of the exploration hole and the sand content of the exploration hole;

[0119] The second calculation unit 904 is used to obtain the total sand content of the foundation pit to be detected by comprehensively analyzing the sand content corresponding to each triangle in the actual excavation triangular grid.

[0120] The sand content detection device of the foundation pit in this embodiment uses the geotechnical test data of the exploration hole in the geological survey report to calculate the sand content of the entire foundation pit, which solves the problem that when the existing foundation pit is excavated, the resource disposal planning can only be carried out after the sand layer is exposed. This disposal method is limited to external transportation and screening and washing, and the transportation process not only consumes a lot of costs, but also has the technical problem of environmental damage.

[0121] See also Fig.10 The embodiment of the present application also provides a foundation pit sand content detection device, the device includes a processor 1001 and a memory 1002:

[0122] The memory 1002 is used to store program codes and transmit the program codes to the processor 601;

[0123] The processor 1001 is used to execute the steps of the method of the foundation pit sand content detection device in the above-mentioned embodiments according to the instructions in the program code.

[0124] An embodiment of the present application further provides a storage medium having computer program instructions stored thereon. When the program instructions are executed by a processor, the steps of the method for detecting sand content in a foundation pit of the aforementioned embodiments are implemented.

[0125] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0126] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0127] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0128] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0129] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0130] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0131] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (full name in English: Read-Only Memory, English abbreviation: ROM), random access memory (full name in English: Random Access Memory, English abbreviation: RAM), disk or optical disk and other media that can store program codes.

[0132] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for detecting sand content in a foundation pit, characterized in that: include: Based on the geological survey report of the foundation pit to be detected, the boundary control point coordinates and the boundary control point sand content of the boundary control point in the foundation pit to be detected, as well as the exploration hole coordinates and the exploration hole sand content of the exploration hole are obtained; Perform triangulation based on the boundary control points and the foundation pit to be detected to obtain an actual excavation triangular mesh corresponding to an actual excavation area in the foundation pit to be detected; Calculate the sand content corresponding to each triangle in the actual excavation triangular grid according to the boundary control point coordinates, the boundary control point sand content, the exploration hole coordinates and the exploration hole sand content; The total sand content of the foundation pit to be inspected is obtained by comprehensively analyzing the sand content corresponding to each triangle in the actual excavation triangular grid.

2. The method for detecting sand content in a foundation pit according to claim 1, characterized in that: The triangulation based on the boundary control points and the foundation pit to be detected is performed to obtain an actual excavation triangular mesh corresponding to the actual excavation area in the foundation pit to be detected, specifically comprising: Taking the exploration hole as a triangle vertex, triangulating the excavation surface of the foundation pit to be inspected to obtain a first triangular mesh; The excavation surface is triangulated with the exploration hole, the boundary control point and the first intersection point as triangle vertices to obtain a second triangular mesh, wherein the first intersection point is the intersection point of the excavation boundary of the foundation pit to be detected and the grid line in the first triangular mesh, and the excavation boundary is the boundary of the simply connected plane enclosed by the boundary control points; The triangular mesh of the second triangular mesh outside the boundary control point and the first intersection point is deleted to obtain the actual excavation triangular mesh.

3. The method for detecting sand content in a foundation pit according to claim 2, characterized in that: The step of calculating the sand content corresponding to each triangle in the actual excavation triangular grid according to the boundary control point coordinates, the boundary control point sand content, the exploration hole coordinates and the exploration hole sand content specifically includes: Determine the sand content corresponding to each triangle in the actual excavation triangular grid according to the sand content of the boundary control point and the sand content of the exploration hole; Determine the volume of the sand layer corresponding to each triangle in the actual excavation triangular grid according to the coordinates of the boundary control point and the coordinates of the exploration hole; The sand content corresponding to each triangle in the actual excavation triangular grid is multiplied by the sand content and the volume of the sand layer to obtain the sand content corresponding to the triangle.

4. The method for detecting sand content in a foundation pit according to claim 3, characterized in that: Determining the sand content corresponding to each triangle in the actual excavation triangular grid according to the sand content of the boundary control point and the sand content of the exploration hole specifically includes: Calculate the sand content of the triangle vertices of each triangle in the actual excavation triangular mesh according to the sand content of the boundary control point and the sand content of the exploration hole; Based on the preset triangle sand content calculation formula, the sand content corresponding to the triangle is calculated using the triangle vertex sand content of each triangle in the actual excavation triangular mesh. The triangle sand content calculation formula is: SR=α×SR1+β×SR2+γ×SR3 Among them, SR is the sand content corresponding to the triangle, SR1, SR2 and SR3 are the sand contents of the three vertices of the triangle respectively, α, β and γ are coefficients, and γ = 1-α-β.

5. The method for detecting sand content in a foundation pit according to claim 4, characterized in that: The step of calculating the sand content of the triangle vertices of each triangle in the actual excavation triangular mesh according to the sand content of the boundary control point and the sand content of the exploration hole specifically includes: When the triangle vertex in the actual excavation triangular mesh is the exploration hole, the sand content of the triangle vertex is equal to the exploration hole sand content of the corresponding exploration hole; When a triangle vertex in the actual excavation triangular mesh is the boundary control point, the sand content of the triangle vertex is equal to the boundary control point sand content of the corresponding boundary control point; When the triangle vertex in the actual excavation triangular mesh is the first intersection point, the sand content of the triangle vertex is equal to the intersection sand content of the corresponding first intersection point, and the intersection sand content is: Among them, SR yj is the sand content at the intersection, SR a and SR b are the sand contents of the exploration holes corresponding to the first endpoint and the second endpoint of the grid line in the first triangular grid where the first intersection is located, and A and B are the distances from the first intersection to the first endpoint and the second endpoint, respectively.

6. The method for detecting sand content in a foundation pit according to claim 3, characterized in that: Determining the volume of the sand layer corresponding to each triangle in the actual excavation triangular grid according to the boundary control point coordinates and the exploration hole coordinates specifically includes: Based on the coordinates of the boundary control points and the coordinates of the exploration holes, determining the coordinates of the triangle vertices of each triangle in the actual excavation triangular mesh and the buried depth of the sand layer at the triangle vertices; The volume of the sand layer of the corresponding triangle is determined according to the coordinates of the triangle vertices of each triangle in the actual excavation triangular grid and the buried depth of the sand layer at the triangle vertices.

7. The method for detecting sand content in a foundation pit according to claim 6, characterized in that: Determining the volume of the sand layer of the corresponding triangle according to the triangle vertex coordinates of each triangle in the actual excavation triangular mesh and the buried depth of the sand layer at the triangle vertex specifically includes: Based on a preset sand layer volume calculation formula, the sand layer volume of the corresponding triangle is determined according to the triangle vertex coordinates of each triangle in the actual excavation triangular mesh and the buried depth of the triangle vertex sand layer. The sand layer volume calculation formula includes: Among them, V is the volume of the sand layer corresponding to the triangle, S is the area of ​​the triangle, and H x1 , H x2 and H x3 are the buried depths of the lower boundary points of the sand layer corresponding to the three vertices of the triangle; H s1 , H s2 and H s3 They are the buried depths of the dividing points on the sand layer corresponding to the three vertices of the triangle.

8. A device for detecting sand content in a foundation pit, characterized in that: include: A first acquisition unit is used to acquire boundary control point coordinates and boundary control point sand content of boundary control points in the foundation pit to be detected, as well as exploration hole coordinates and exploration hole sand content of the exploration hole based on the geological survey report of the foundation pit to be detected; A triangulation unit, configured to perform triangulation based on the boundary control points and the foundation pit to be detected, to obtain an actual excavation triangular mesh corresponding to an actual excavation area in the foundation pit to be detected; A first calculation unit is used to calculate the sand content corresponding to each triangle in the actual excavation triangular grid according to the boundary control point coordinates, the boundary control point sand content, the exploration hole coordinates and the exploration hole sand content; The second calculation unit is used to obtain the total sand content of the foundation pit to be detected by comprehensively analyzing the sand content corresponding to each triangle in the actual excavation triangular grid.

9. A foundation pit sand content detection device, characterized in that: The device comprises a processor and a memory; The memory is used to store program code and transmit the program code to the processor; The processor is used to execute the foundation pit sand content detection method according to any one of claims 1 to 7 according to the instructions in the program code.

10. A storage medium, characterized in that: The storage medium stores computer program instructions, and when the program instructions are executed by the processor, the method for detecting the sand content in a foundation pit according to any one of claims 1 to 7 is implemented.

Images