CN112446956B - Geological three-dimensional model construction method based on drilling data - Google Patents
Geological three-dimensional model construction method based on drilling data Download PDFInfo
- Publication number
- CN112446956B CN112446956B CN202110133009.XA CN202110133009A CN112446956B CN 112446956 B CN112446956 B CN 112446956B CN 202110133009 A CN202110133009 A CN 202110133009A CN 112446956 B CN112446956 B CN 112446956B
- Authority
- CN
- China
- Prior art keywords
- geological
- dimensional
- model
- drilling
- dimensional model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/05—Geographic models
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
- G06T17/205—Re-meshing
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Software Systems (AREA)
- Computer Graphics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a geological three-dimensional model construction method based on drilling data, which comprises the following steps of collecting drilling information of a geological body, establishing a drilling point plane area, and dividing a plane triangular mesh; the drilling device is divided into a plurality of triangles, the drilling central lines at two vertex positions of any triangle form a two-dimensional section, each triangle has three two-dimensional sections, and the three two-dimensional sections of the same triangle form a triangular prism; adopting curved surface lofting with contour lines as cross sections for the triangular prisms to generate a ground curved surface model; carrying out three-level division on geological strata on all the triangular two-dimensional sections, deducing two-dimensional development forms of the strata on each side surface, and establishing a geological two-dimensional model; establishing an independent three-dimensional model without a ground surface model for each triangular prism; and (3) cutting the independent three-dimensional model by using the ground surface model, and splicing all the cut independent three-dimensional models in the triangular mesh to construct a complete geological three-dimensional model.
Description
Technical Field
The invention belongs to the technical field of geological modeling, and particularly relates to a geological three-dimensional model construction method based on drilling data.
Background
The three-dimensional geological modeling technology is to informationize the spatial development morphology of geological units in a geological body in a specific spatial range and the combination relationship among the geological units, so that a virtual space provided by computer software can visually represent the real spatial relationship of the geological body in the real world. The techniques involved in this process are known as three-dimensional geological modeling techniques. In practice, since it is generally impossible to excavate a geologic body completely and to know its development form, a method of drilling a hole in the geologic body is usually adopted to find out the structure of the geologic body, which is called drilling. Specifically, a plurality of boreholes are drilled in the geologic body, and then the development conditions of the geologic body in each borehole are observed, and the spatial development forms of each geologic unit in the whole geologic body are estimated after summary analysis. However, the existing modeling method has the following problems that the existing modeling method does not rise to the stage of a geological three-dimensional model, does not reach the degree of two-dimensional or three-dimensional defined by computer graphics, can only be called as some schematic diagrams, and only stays at the stage of drawing a geological section.
The automatically generated geological profile is reasonable and correct only under the conditions of simple geological conditions, good stratigraphic layering and regular deposition rhythm, and the conditions of unreasonable stratigraphic lines, mutual intersection, overlapping or separation of the stratums and the like often occur due to the change of the stratums and slightly complex terrain change, so that the geological rules are not met in many times.
Disclosure of Invention
The invention aims to: the geological three-dimensional model construction method based on the drilling data is provided, the analysis work of a point-by-point estimation body is completed by a computer, an engineer is liberated from the lower-level analysis activity, and the problems of low efficiency, time consumption and labor consumption of manual analysis are solved.
The technical scheme of the invention is as follows:
a geological three-dimensional model construction method based on drilling data comprises the following steps,
s1: collecting drilling information of a geologic body, preprocessing the drilling information, and storing the preprocessed drilling information as data in a geological database;
s2: according to data in a geological database, establishing a drilling point plane area, and dividing a plane triangular mesh; the drilling device is divided into a plurality of triangles, the drilling central lines at two vertex positions of any triangle form a two-dimensional section, each triangle has three two-dimensional sections, and the three two-dimensional sections of the same triangle form a triangular prism;
s3: adopting curved surface lofting with contour lines as cross sections for the triangular prisms to generate a ground curved surface model;
s4: carrying out three-level division on geological strata on all the triangular two-dimensional sections, deducing two-dimensional development forms of the strata on each side surface, and establishing a geological two-dimensional model;
s5: for each triangular prism, determining the side surface, the upper surface and the lower surface of a geological three-dimensional entity according to a geological two-dimensional model with three side surfaces, deducing a three-dimensional development form in the geological three-dimensional entity, and establishing an independent three-dimensional model without a ground surface model;
s6: and (4) cutting the independent three-dimensional model in the S5 by using the ground surface model in the S3, and splicing all the cut independent three-dimensional models in the triangular mesh to construct a complete geological three-dimensional model.
Further, in S2, all points in the drilling information are extracted from the data in the geological database to form a planar area, and the planar area is divided into a plurality of triangles without overlapping areas.
Further, in S3, the process of building the ground surface model includes manually adjusting and building the ground surface model according to the measured contour topographic map, or automatically adjusting and building the ground surface model by generating the ground surface through cross-section lofting.
Further, in S4, the three-level dividing process of the geological formation includes the following steps:
s41: according to the geological age and the cause, grouping primary geological layers of the stratums of two adjacent drill holes, arranging the sequence of upper and lower layers of the primary geological layer according to the geological rule, and determining the boundary line between different primary geological layers;
s42: after the boundary line of the first-level geological formation is determined, dividing geology in the boundary line into a through second-level geological formation and a non-through second-level geological formation according to a through state, and determining the boundary line between the through second-level geological formation and the non-through second-level geological formation;
s43: after a boundary line between the run-through secondary geological formation and the non-run-through secondary geological formation is determined, stratigraphic layers which are identical in geotechnical engineering classification and have various physical and mechanical indexes within a range specified by geotechnical engineering investigation specifications in the boundary line of the run-through secondary geological formation are divided into three geological layers, and if the non-run-through secondary geological formation exists in the boundary line of the first geological formation, the boundary line between the non-run-through secondary geological formation and the three geological layers is determined.
Further, the method for determining the boundary line comprises the steps of starting a manual operation mode when the exposed position of the stratum on the ground and the shape of the bedrock line are calculated to have multi-solution, and adjusting the stratum layering condition according to the actual condition.
Further, in S41, when the upper and lower layer sequences of the first-order geological formation are arranged according to the geological rule, the weathering category is calculated in a partitioned manner for the rock formation.
Further, the step S5 specifically includes the following steps:
s51: determining the side surface of the geological three-dimensional entity, wherein each side surface of the triangular prism is subjected to geological two-dimensional modeling, so that the three side surfaces of the triangular prism are determined, when the side surface is calculated by the geological three-dimensional entity, any sub-layer and the triangular prism in the geological three-dimensional entity at least comprise two contact surfaces, and when the number of the contact surfaces is two, which indicates that the third side surface is pincered, the sub-layer only has two side surfaces and is determined; when the contact surface is three, determining three side surfaces of the sublayer, measuring the contact surfaces of all the sublayers and the triangular prism, and determining the side surface condition;
s52: determining the upper surface and the lower surface of the geological three-dimensional entity, wherein the boundary lines of the upper surface and the lower surface of the sub-layer on the side surface are already determined, and generating a curved surface taking the three boundary lines as boundaries by taking the three boundary lines as the boundaries, wherein the curved surface is the upper surface and the lower surface of the sub-layer; measuring the upper and lower surfaces of all the sublayers;
s53: and combining the side conditions of all the sub-layers in the S51 with the upper surface and the lower surface of all the sub-layers in the S52 to deduce the three-dimensional development form inside the geological three-dimensional entity, and establishing an independent three-dimensional model without a ground surface curved surface model.
The sub-layer, which is a term of art in the engineering geological exploration industry, may also be referred to as a "formation sub-layer" instead.
The sub-layer refers to civil engineering structures such as roads, railways, bridges and the like, and because all the structures are built in the geologic body, when the structures are designed, the spatial distribution of the geologic body and the physical and mechanical parameters of the geologic body need to be known, namely, the physical and mathematical model of the geologic body needs to be known. (ascertaining the physical-mathematical model of a geological body is done by an engineering geological survey unit.) an engineering geological survey unit divides a geological body into different cells during the survey according to the physical-mechanical properties of the geological body (since these cells are often layered, the term "stratigraphic" is generally used to denote a geological cell). Sometimes, due to the requirement of design on precision, one level is not enough for dividing the geological units, and the geological body of the foundation needs to be surveyed to develop sandy soil 0-5 m and pebbles 5-10 m below the surface of the geological body, so as to roughly divide the geological body into two units (two strata) for building a house, and then the sandy soil is found to be different and has more compact sandy soil and looser sandy soil, so that the sandy soil is further divided into loose sandy soil and compact sandy soil and pebbles, which are the same meaning of "sub-layer", namely the next level subdivision unit of the "stratum", which is called "stratum sub-layer". Such subdivision may have several layers, referred to as primary, secondary, tertiary, etc., according to engineering reconnaissance geological standards.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the analysis work of the 'point-by-point estimation body' is completed by a computer, an engineer is liberated from the lower-level analysis activity, the manual workload is reduced, the geological structure can be observed more visually through a geological three-dimensional model, the informatization and the intellectualization of the investigation work are realized, and the efficiency of the information processing work of the investigation work is improved.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a schematic flow chart of a geological three-dimensional model building method based on borehole data according to the present invention;
FIG. 2 is a schematic view of a plan view of a drilling site formed by the drilling sites of the present invention;
FIG. 3 is a schematic diagram of the planar triangular mesh of the planar area of the drilling point according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the invention are described in further detail below with reference to the examples and figure 1.
A geological three-dimensional model construction method based on borehole data as shown in fig. 1 comprises the following steps;
s1: collecting drilling information of a geologic body, preprocessing the drilling information, and storing the preprocessed drilling information as data in a geological database;
s2: according to data in a geological database, establishing a drilling point plane area, and dividing a plane triangular mesh; the drilling device is divided into a plurality of triangles, the drilling central lines at two vertex positions of any triangle form a two-dimensional section, each triangle has three two-dimensional sections, and the three two-dimensional sections of the same triangle form a triangular prism;
s3: adopting curved surface lofting with contour lines as cross sections for the triangular prisms to generate a ground curved surface model;
s4: carrying out three-level division on geological strata on all the triangular two-dimensional sections, deducing two-dimensional development forms of the strata on each side surface, and establishing a geological two-dimensional model;
s5: for each triangular prism, determining the side surface, the upper surface and the lower surface of a geological three-dimensional entity according to a geological two-dimensional model with three side surfaces, deducing a three-dimensional development form in the geological three-dimensional entity, and establishing an independent three-dimensional model without a ground surface model;
s6: and (4) cutting the independent three-dimensional model in the S5 by using the ground surface model in the S3, and splicing all the cut independent three-dimensional models in the triangular mesh to construct a complete geological three-dimensional model.
Further, in S2, all points in the drilling information are extracted from the data in the geological database to form a planar area, and the planar area is divided into a plurality of triangles without overlapping areas.
Further, in S3, the process of building the ground surface model includes manually adjusting and building the ground surface model according to the measured contour topographic map, or automatically adjusting and building the ground surface model by generating the ground surface through cross-section lofting.
Further, in S4, the three-level dividing process of the geological formation includes the following steps:
s41: according to the geological age and the cause, grouping primary geological layers of the stratums of two adjacent drill holes, arranging the sequence of upper and lower layers of the primary geological layer according to the geological rule, and determining the boundary line between different primary geological layers;
s42: after the boundary line of the first-level geological formation is determined, dividing geology in the boundary line into a through second-level geological formation and a non-through second-level geological formation according to a through state, and determining the boundary line between the through second-level geological formation and the non-through second-level geological formation;
s43: after a boundary line between the run-through secondary geological formation and the non-run-through secondary geological formation is determined, stratigraphic layers which are identical in geotechnical engineering classification and have various physical and mechanical indexes within a range specified by geotechnical engineering investigation specifications in the boundary line of the run-through secondary geological formation are divided into three geological layers, and if the non-run-through secondary geological formation exists in the boundary line of the first geological formation, the boundary line between the non-run-through secondary geological formation and the three geological layers is determined.
Further, the method for determining the boundary line comprises the steps of starting a manual operation mode when the exposed position of the stratum on the ground and the shape of the bedrock line are calculated to have multi-solution, and adjusting the stratum layering condition according to the actual condition.
Further, in S41, when the upper and lower layer sequences of the first-order geological formation are arranged according to the geological rule, the weathering category is calculated in a partitioned manner for the rock formation.
Further, the step S5 specifically includes the following steps:
s51: determining the side surface of the geological three-dimensional entity, wherein each side surface of the triangular prism is subjected to geological two-dimensional modeling, so that the three side surfaces of the triangular prism are determined, when the side surface is calculated by the geological three-dimensional entity, any sub-layer and the triangular prism in the geological three-dimensional entity at least comprise two contact surfaces, and when the number of the contact surfaces is two, which indicates that the third side surface is pincered, the sub-layer only has two side surfaces and is determined; when the contact surface is three, determining three side surfaces of the sublayer, measuring the contact surfaces of all the sublayers and the triangular prism, and determining the side surface condition;
s52: determining the upper surface and the lower surface of the geological three-dimensional entity, wherein the boundary lines of the upper surface and the lower surface of the sub-layer on the side surface are already determined, and generating a curved surface taking the three boundary lines as boundaries by taking the three boundary lines as the boundaries, wherein the curved surface is the upper surface and the lower surface of the sub-layer; measuring the upper and lower surfaces of all the sublayers;
s53: and combining the side conditions of all the sub-layers in the S51 with the upper surface and the lower surface of all the sub-layers in the S52 to deduce the three-dimensional development form inside the geological three-dimensional entity, and establishing an independent three-dimensional model without a ground surface curved surface model.
The working principle is as follows: drilling a plurality of drilling points in a space range to be measured, such as a drilling point plane area shown in fig. 2, refers to a group of points distributed on a plane, if the points are not collinear, that is, the points are not all on a straight line, a closed graph is drawn along the periphery of the points, and the closed graph obeys the following rules:
a. the closed figure is composed of a plurality of straight line segments which are all sent from one point in the group of points to the other point.
b. The straight line segments are connected end to form a closed area, and the straight line segments do not intersect with each other.
c. All points are inside the figure, or at the end points of straight line segments of the figure.
Dividing a plane grid, adopting N-edge type division, generating a ground surface by taking contour lines as a curved surface lofting of a cross section to complete ground modeling, judging according to stratum conditions in drilled holes at two ends, deducing a two-dimensional development form of the stratum on the plane, and establishing a geological two-dimensional model; and finally, cutting three-level geological layer three-dimensional models by using ground surface surfaces, splicing the three-dimensional models in the polyhedrons of the polygonal network, and constructing a complete three-dimensional model.
Dividing a plane area represented by the drilling points into small blocks, performing geological modeling on each small block, splicing each small block, and finally forming a three-dimensional model of the whole area. There are several schemes for dividing the plane area, in this embodiment, a triangular mesh division method is adopted,
according to the plane geometry principle, the plane area represented by the drilling points is divided into a plurality of triangles without overlapping areas formed by all the points, and a schematic diagram of the division of the plane triangular meshes in the plane area of the drilling points is shown in fig. 3.
After the plane is triangulated, for each triangle, the drilling holes at any two vertex positions form a two-dimensional section, one triangle has three such two-dimensional sections, and the three surfaces are spliced together to form a triangular prism. In the three side planes of the triangular prism, according to the stratum condition in the drilled holes at two ends, the two-dimensional development form of the stratum on the plane is deduced, a geological two-dimensional model is built, then according to the two-dimensional model of the three side planes of the triangular prism, the three-dimensional development form of the geologic body in the prism is deduced, and thus the three-dimensional model is built. After the three-dimensional model of the stratum is built, the ground of the stratum model is consistent with the ground of the actual condition, so the three-dimensional ground model consistent with the actual condition is also created.
The primary geological formation refers to all stratum secondary geological formations with the same formation reason and the same age of geological formation.
Secondary geological layers are subdivided into two categories: the through layer and the non-through layer are arranged in two adjacent drill holes, the geological age is the same, the geological cause is the same, the geotechnical engineering classification is the same, the engineering physical and mechanical properties are the same, the through layer is judged to belong to the same geotechnical engineering stratum, and the positions of the through layer and the non-through layer in the two drill holes meet a certain spatial relationship, so that the through layer can be judged to be mutually communicated strata. The non-through layers refer to strata separated by two levels of through layers in the same primary stratum group, and the through layers and the non-through layers always alternate from top to bottom. The non-through layers may be located in the same primary formation, above the through layers, between the through layers, and below the through layers.
The three-level geological layer refers to the minimum unit of stratum division in geotechnical engineering investigation, and represents the stratum with the same geological age, the same cause and the same geotechnical engineering classification, and all physical and mechanical indexes are within the range specified by geotechnical engineering investigation specifications.
Arranging the sequence of upper and lower layers of a first-level geological formation according to a geological rule, and determining a boundary line between different first-level geological formations, wherein the two layers are logically and inevitably judged to be communicated and belong to the same stratum if stratum data of two drilled holes are consistent in geotechnical engineering name assignment. If the names of the geotechnical engineering of the stratums on the two sides are inconsistent, but the horizons are close, the position of a boundary between the inconsistent stratums needs to be judged, and the problem that the stratum has who is above and who is below exists. Therefore, the first-level geological layers are grouped, the strata of the same geological age cause are divided into one group, the strata of different groups are sequenced firstly, the new strata in the front of the generation and the old strata in the back of the generation generate models, the models of the front strata are generated firstly, and the models of the rear strata are generated after the geological boundary of the front strata is determined, so that the definition of the strata boundary is ensured, the young strata are always on, the old strata are always on, and the strata layers are ensured to meet the geological rules. And finishing a secondary geological layer set according to the through layer and the non-through layer, and determining a boundary line between the through layer and the non-through layer.
The three-dimensional geometric model to be expressed by the invention is expressed by a computer graphic model provided by autocad of AUTODESK company.
For S3, adopting surface lofting with contour lines as cross sections for triangular prisms to generate a ground surface model, and creating a three-dimensional ground model consistent with the actual situation because the ground of the stratum model is consistent with the ground of the actual situation, wherein the ground model can be created by adopting the method of cross section lofting provided by autocad to generate a ground surface according to the actual contour line topographic map, and can be manually adjusted to create or manually adjust the automatically generated ground surface;
for the determination of the upper surface and the lower surface of the geological three-dimensional entity by the step S52, because the boundary lines of the upper surface and the lower surface of the sub-layer on the side surfaces are already determined, because all the side surfaces are already modeled, only three boundary lines are needed to be used as boundaries, and a method for generating a "ruled surface" in the autocad object programming library is used to generate a curved surface with the three boundary lines as boundaries, wherein the curved surface is the upper surface and the lower surface of the sub-layer.
For S53, combining the side conditions of all sub-layers in S51 with the upper and lower surfaces of all sub-layers in S52, deducing the three-dimensional development form inside the geological three-dimensional entity, establishing an independent three-dimensional model without a ground surface model, and generating the three-dimensional entity surrounded by the surfaces by using a method provided by an autocad object programming library.
And all project data of the user can be stored in the server (cloud end), if all geological prospecting personnel do the same, results of all the geological prospecting personnel are transmitted to the cloud end, and a foundation is laid for application of geological prospecting result big data and the like.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be made by those skilled in the art without inventive work within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (6)
1. A geological three-dimensional model construction method based on drilling data is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
s1, collecting the drilling information of the geologic body, preprocessing the drilling information, and storing the preprocessed drilling information as data in a geologic database;
s2, establishing a drilling point plane area according to the data in the geological database, and dividing a plane triangular mesh; the drilling device is divided into a plurality of triangles, the drilling central lines at two vertex positions of any triangle form a two-dimensional section, each triangle has three two-dimensional sections, and the three two-dimensional sections of the same triangle form a triangular prism;
s3, adopting curved surface lofting with contour lines as cross sections for the triangular prisms to generate a ground curved surface model;
s4, performing three-level division of geological strata on all triangular two-dimensional sections, deducing two-dimensional development forms of the strata on each side surface, and establishing a geological two-dimensional model;
s5, determining the side surface and the upper and lower surfaces of the geological three-dimensional entity according to the geological two-dimensional model of the three side surfaces, deducing the three-dimensional development form in the geological three-dimensional entity and establishing an independent three-dimensional model without a ground surface model for each triangular prism;
s6, cutting the independent three-dimensional model in the S5 by using the ground surface model in the S3, and splicing all the cut independent three-dimensional models in the triangular mesh to construct a complete geological three-dimensional model;
in S4, the three-level geological formation partitioning process includes the following steps:
s41, grouping the first-stage geological layers of the stratums of two adjacent drill holes according to the geological age and the cause, arranging the upper and lower layer sequence of the first-stage geological layer according to the geological rule, and determining the boundary line between different first-stage geological layers;
s42, after the boundary line of the first-level geological formation is determined, dividing geology in the boundary line into a through second-level geological formation and a non-through second-level geological formation according to a through state, and determining the boundary line between the through second-level geological formation and the non-through second-level geological formation;
and S43, after the boundary line between the through secondary geological formation and the non-through secondary geological formation is determined, stratigraphic layers which are the same in geotechnical engineering classification and have the physical and mechanical indexes within the range specified by the geotechnical engineering investigation standard in the boundary line of the through secondary geological formation are divided into three geological layers, and if the non-through secondary geological formation exists in the boundary line of the first geological formation, the boundary line between the non-through secondary geological formation and the three geological layers is determined.
2. The geological three-dimensional model construction method based on the borehole data as claimed in claim 1, characterized in that: in S2, all points in the drilling information are extracted from the data in the geological database to form a planar region, and the planar region is divided into a plurality of triangles without overlapping regions.
3. The geological three-dimensional model construction method based on the borehole data as claimed in claim 1, characterized in that: in S3, the process of building the ground surface model includes manually adjusting and building the ground surface model according to the measured contour topographic map, or automatically adjusting and building the ground surface model by generating the ground surface through cross-section lofting.
4. The geological three-dimensional model construction method based on the borehole data as claimed in claim 1, characterized in that: the method for determining the boundary line comprises the steps of starting a manual operation mode when the exposed position of the stratum on the ground and the shape of the bedrock line are calculated to have multiple solutions, and adjusting the stratum layering condition according to the actual condition.
5. The geological three-dimensional model construction method based on the borehole data as claimed in claim 1, characterized in that: and in the S41, when the sequence of the upper and lower layers of the first-level geological formation is arranged according to the geological rule, the weathering category is calculated in a partitioning manner for the rock formation.
6. The geological three-dimensional model construction method based on the borehole data as claimed in claim 1, characterized in that: the S5 specifically includes the following steps:
s51, determining the side surface of the geological three-dimensional entity, wherein the three side surfaces of the triangular prism are determined because geological two-dimensional modeling is completed on each side surface of the triangular prism, when the side surface is calculated by applying the side surface to the geological three-dimensional entity, any sub-layer and the triangular prism in the geological three-dimensional entity at least comprise two contact surfaces, and when the number of the contact surfaces is two, the third side surface is pointed, and the sub-layer only has two side surfaces and is determined; when the contact surface is three, determining three side surfaces of the sublayer, measuring the contact surfaces of all the sublayers and the triangular prism, and determining the side surface condition;
s52, determining the upper surface and the lower surface of the geological three-dimensional entity, wherein the boundary lines of the upper surface and the lower surface of the sub-layer on the side surface are already determined, and three boundary lines are taken as boundaries to generate a curved surface taking the three boundary lines as boundaries, and the curved surface is the upper surface and the lower surface of the sub-layer; measuring the upper and lower surfaces of all the sublayers;
and S53, combining the side conditions of all the sub-layers in the S51 with the upper surface and the lower surface of all the sub-layers in the S52, deducing the three-dimensional development form inside the geological three-dimensional entity, and establishing an independent three-dimensional model without a ground surface curved surface model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133009.XA CN112446956B (en) | 2021-02-01 | 2021-02-01 | Geological three-dimensional model construction method based on drilling data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133009.XA CN112446956B (en) | 2021-02-01 | 2021-02-01 | Geological three-dimensional model construction method based on drilling data |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112446956A CN112446956A (en) | 2021-03-05 |
| CN112446956B true CN112446956B (en) | 2021-04-23 |
Family
ID=74739748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110133009.XA Active CN112446956B (en) | 2021-02-01 | 2021-02-01 | Geological three-dimensional model construction method based on drilling data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112446956B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113902857A (en) * | 2021-08-24 | 2022-01-07 | 中铁第一勘察设计院集团有限公司 | Geologic body three-dimensional modeling method, device, computer equipment and medium |
| CN114842159B (en) * | 2022-04-29 | 2023-06-13 | 重庆地质矿产研究院 | Three-dimensional geologic model splicing method for complex structure of sedimentary stratum |
| CN115719411B (en) * | 2023-01-10 | 2023-04-18 | 东华理工大学南昌校区 | Three-dimensional geological modeling method, system, computer and readable storage medium |
| CN116630568B (en) * | 2023-07-24 | 2023-11-03 | 航天宏图信息技术股份有限公司 | Geological three-dimensional model generation method and device based on point, line and surface structures |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074027A (en) * | 2010-12-15 | 2011-05-25 | 中国石油集团川庆钻探工程有限公司 | Two-dimensional geological model agglomerating method |
| CN102279980A (en) * | 2010-06-13 | 2011-12-14 | 中国地质科学院矿产资源研究所 | Geological exploration ore body three-dimensional modeling method and device thereof |
| CN102651143A (en) * | 2011-02-25 | 2012-08-29 | 中冶沈勘工程技术有限公司 | Automatically generating method of pinchout geological body three-dimensional complex profile |
| CN103279986A (en) * | 2013-06-17 | 2013-09-04 | 陈超东 | Three-dimensional horizontal geological section map manufacturing method and applications thereof |
| CN106981093A (en) * | 2017-05-17 | 2017-07-25 | 上海同岩土木工程科技股份有限公司 | A kind of three-dimensional formation parallel modeling method of subregion constraint coupling |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129712A (en) * | 2011-03-10 | 2011-07-20 | 东南大学 | Triangular net model constructing method based on multi-stratum and three-dimensional quantity of earth work |
| CN102254349B (en) * | 2011-06-30 | 2012-11-28 | 华东师范大学 | Method for constructing three-dimensional physical model of sedimentary stratum system by using drilling data |
| CN110211232A (en) * | 2019-06-10 | 2019-09-06 | 山东高速科技发展集团有限公司 | A kind of triangular prism composition model method and system based on borehole data |
| CN110610539A (en) * | 2019-08-13 | 2019-12-24 | 北京中色地科测绘有限公司 | Stratum curved surface construction method, device, equipment and storage medium |
-
2021
- 2021-02-01 CN CN202110133009.XA patent/CN112446956B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279980A (en) * | 2010-06-13 | 2011-12-14 | 中国地质科学院矿产资源研究所 | Geological exploration ore body three-dimensional modeling method and device thereof |
| CN102074027A (en) * | 2010-12-15 | 2011-05-25 | 中国石油集团川庆钻探工程有限公司 | Two-dimensional geological model agglomerating method |
| CN102651143A (en) * | 2011-02-25 | 2012-08-29 | 中冶沈勘工程技术有限公司 | Automatically generating method of pinchout geological body three-dimensional complex profile |
| CN103279986A (en) * | 2013-06-17 | 2013-09-04 | 陈超东 | Three-dimensional horizontal geological section map manufacturing method and applications thereof |
| CN106981093A (en) * | 2017-05-17 | 2017-07-25 | 上海同岩土木工程科技股份有限公司 | A kind of three-dimensional formation parallel modeling method of subregion constraint coupling |
Non-Patent Citations (1)
| Title |
|---|
| 基于Kriging方法的三维地质体构建;高寿峰;《第十四届华东六省一市测绘学会学术交流会论文集江苏省测绘学会会议论文集》;20120620;170-173 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112446956A (en) | 2021-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112446956B (en) | Geological three-dimensional model construction method based on drilling data | |
| CN109147045B (en) | Topological partition based three-dimensional automatic modeling method for geology of urban area | |
| CN100478996C (en) | Three dimension uniform model construction method of water conservancy hydropower engineering geological information | |
| CN105469443B (en) | Based on geotraverse（PRB）The method that process Data fuse generates three-dimensional geological figure | |
| CN106023313B (en) | A kind of three-dimensional geological number exploration report generation method | |
| US8965745B2 (en) | Grid from depositional space | |
| Guo et al. | Three-dimensional geological modeling and spatial analysis from geotechnical borehole data using an implicit surface and marching tetrahedra algorithm | |
| CN112419500B (en) | Three-dimensional geological model modeling method | |
| US7340385B2 (en) | Method and program storage device for generating grids representing the architecture of fluvial reservoirs | |
| CN111079217B (en) | BIM-based geotechnical engineering comprehensive investigation information interpretation method and system | |
| CN108842821B (en) | Calculation method for reasonable buried depth of submarine tunnel constructed by drilling and blasting method | |
| CN111339691A (en) | Intelligent geotechnical engineering parameter three-dimensional analysis and evaluation system and method based on voxler software | |
| CN105321204B (en) | A kind of three-dimensional geological grid body Model construction method | |
| CN106709987B (en) | Dynamic construction method of three-dimensional geological profile model | |
| CN105320817A (en) | Method for determining flatness ratio of shallow and long-span city tunnel | |
| CN111006987A (en) | Reservoir fracture pore permeability parameter prediction method | |
| CN110705168A (en) | Simulation method of structural stress field | |
| He et al. | Three-dimensional hydrogeological modeling method and application based on TIN-GTP-TEN | |
| CN113536414B (en) | Rock slope stability analysis method, system and medium based on three-dimensional modeling | |
| US20110208499A1 (en) | Method for history matching of a geological model comprising a sub-seismic fault network | |
| CN107153730A (en) | Multi-source geologic data coupling modeling method under the constraint diagram of geologic division | |
| CN111859687A (en) | Mixed geological modeling method and system for depicting geological structure of uranium-bearing sand layer | |
| CN104462649B (en) | A kind of automatic update method of ore body block segment model reserves | |
| Jones | Solid modelling of earth masses for applications in geotechnical engineering | |
| Gao et al. | Mathematical Interpolation and Correction of Three-Dimensional Modelling of High-Speed Railway. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |