A geological information collection system based on BIM

Abstract

The present invention relates to the field of geological model technology, and in particular to a geological information acquisition system based on BIM, comprising: an information acquisition module, a model construction module, a model analysis module, a model update module and an early warning module, wherein the information acquisition module periodically acquires geological modeling information of a target detection area and divides the area into a plurality of detection sub-areas, the model construction module constructs a fixed geological model and a variable geological model according to the detection result, the model analysis module dynamically monitors the change amount of the geological modeling information, the model update module dynamically adjusts the detection cycle and the model update frequency according to the geological type, and the early warning module issues early warning information according to the determination result of the update module; the system of the present invention monitors and analyzes various modeling information, and adaptively selects the updating mode of the model according to the analysis result, thereby reducing the computing power consumption of the overall updating model and saving system resources under the premise of ensuring reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of geological models, and in particular to a geological information acquisition system based on BIM. Background Art

[0002] By integrating advanced exploration tools, remote sensing technology, 3D laser scanning, GIS systems and a variety of sensors, more accurate and comprehensive geological data is provided for construction and infrastructure projects. Geological information collection based on BIM can enhance design and construction decision-making, optimize resource allocation, improve construction safety, and promote project efficiency.

[0003] Chinese patent publication number: CN109872391B, discloses a survey comprehensive BIM model modeling system, including: survey original information model modeling module, survey basic information model modeling module, stratum three-dimensional distribution model modeling module, survey professional attribute model modeling module, survey application model modeling module, the survey original information model modeling module includes: survey site original information model modeling submodule; drilling original information model modeling submodule; exploration trench and exploration cave original information model modeling submodule; physical and chemical exploration original information model modeling submodule; water body survey original information model modeling submodule, etc.; It can be seen that the survey comprehensive BIM model modeling system has the following problems: it does not consider that when updating the model, some geological information is firm and not easy to change, and does not need to be frequently collected and updated, which wastes system computing power. Summary of the invention

[0004] To this end, the present invention provides a geological information collection system based on BIM to overcome the problem in the prior art that some geological information is firm and not easy to change when the model is updated, and does not require frequent collection and update, which wastes system computing power.

[0005] To achieve the above object, the present invention provides a geological information acquisition system based on BIM, comprising:

[0006] An information acquisition module, which is used to periodically acquire all geological modeling information of a target detection area, and divide the target detection area into a plurality of detection sub-areas, wherein the geological modeling information includes stable geological information and dynamic geological information;

[0007] A model building module, which is connected to the information acquisition module, and is used to build a fixed geological model according to the stable geological information collected by the information acquisition module, to build a variable geological model according to the dynamic geological information, and to update and build the fixed geological model and the variable geological model;

[0008] A model analysis module, which is connected to the information acquisition module and the model construction module respectively, and is used to determine the geological type of each detection sub-area according to the change amount of the geological modeling information detected in adjacent detection cycles;

[0009] The model updating module is respectively connected with the information acquisition module, the model building module and the model analysis module to determine the model updating mode according to the geological type of each detection sub-area, and control the model building module to update the fixed geological model and the variable geological model. The model updating mode includes:

[0010] shortening the detection period of the information acquisition module according to the relative maximum change in the changes of each geological modeling information, obtaining the detection result of the adjusted detection period, determining whether to issue early warning information for the detection sub-area, and determining the update frequency of each geological model according to the adjusted detection period;

[0011] Or, determining the amount of change in modeling information of each of the geological modeling information within a predetermined detection period, and determining whether a repeated acquisition condition is met according to the amount of change in modeling information, so as to extend the detection period of the geological modeling information of the detection sub-area and the update frequency of the corresponding fixed geological model and the variable geological model;

[0012] An early warning module is connected to the model updating module and is used to issue early warning information for the detection sub-area.

[0013] Furthermore, the information collection module includes:

[0014] A stable geological information collection component, which is used to collect stable geological information, including a rock detection unit for collecting rock information, a structure detection unit for collecting structure information, and a soil detection unit for collecting soil information;

[0015] A terrain information collection component, which is used to collect dynamic geological information, including a water level collection unit for collecting groundwater information, a terrain detection unit for collecting terrain information, and a soil mechanics detection unit for detecting soil mechanics parameter information;

[0016] The stable geological information includes the rock information, the structural information and the soil information, and the dynamic geological information includes the groundwater information, the topographic information and the soil mechanics parameter information.

[0017] Furthermore, the model construction module constructs the fixed geological model according to the rock information and the structural information, and constructs the variable geological model according to the groundwater information and the terrain information.

[0018] Furthermore, the model analysis module determines the change amount of the geological modeling information according to the detection results of adjacent detection cycles, including:

[0019] The model analysis module obtains all the geological modeling information at the end of the previous detection cycle and the end of the current detection cycle for comparison, and records the difference in the comparison results of each geological modeling information as the modeling information change amount.

[0020] Furthermore, the model analysis module determines the geological type of each detection sub-area according to the change amount of the geological modeling information.

[0021] If the change amount of the geological information meets the stable geological conditions, the geological type of the sub-area of ​​the detection area is a stable geological type;

[0022] If the change amount of the geological information does not meet the stable geological conditions, the geological type of the sub-area of ​​the detection area is a variable geological type;

[0023] The stable geological condition is that the change amount of each geological modeling information is within the corresponding standard change range and the total change amount of each geological modeling information does not exceed the corresponding total change amount threshold.

[0024] Furthermore, the model updating module determines the model updating method according to the geological type of each detection sub-area, including:

[0025] If the geological type of the sub-region of the detection area is a changeable geological type, shorten the detection period of the information acquisition module according to the relative maximum change amount among the changes of each of the geological modeling information, obtain the detection result of the adjusted detection period, and determine whether to issue early warning information for the detection sub-region;

[0026] If the geological type of the sub-area of ​​the detection zone is the same as the stable geological type, the detection period of the information acquisition module is shortened according to the relative maximum change in the change of each geological modeling information, the detection result of the adjusted detection period is obtained, and it is determined whether to issue early warning information for the detection sub-area, and the update frequency of each geological model is determined according to the adjusted detection period.

[0027] Furthermore, the model updating module shortens the detection cycle of the information acquisition module according to the relative maximum change amount among the changes in the geological modeling information, including:

[0028] The model updating module determines the corresponding information change rate according to the change amount of each geological modeling information and the maximum value of the corresponding standard change range;

[0029] Determine the shortening amount of the detection period according to the maximum information change rate and the initial detection period;

[0030] The shortening amount of the detection period is positively correlated with the maximum information change rate, and the relative maximum change amount in the changes corresponds to the maximum information change rate.

[0031] Further, the model updating module determines whether to issue warning information for the detection sub-area according to the detection result of the adjusted detection period and the adjusted standard variation range;

[0032] If there is a detection result of the adjusted detection cycle that exceeds the adjusted standard variation range, it is determined to issue a warning information for the detection sub-area;

[0033] Among them, the adjusted standard change range is determined based on the original standard change range and the maximum information change rate.

[0034] Furthermore, the model determines whether the repeated acquisition condition is met according to the change amount of the modeling information of each geological modeling information within a predetermined detection period.

[0035] If the modeling information change amount of each of the geological modeling information within the predetermined detection period is less than the corresponding preset modeling information change amount, it is determined that the repeated acquisition condition is met.

[0036] Furthermore, the early warning module issues early warning information for the detection sub-area according to the determination result of the model updating module.

[0037] Compared with the prior art, the beneficial effect of the present invention is that the present invention periodically obtains the geological modeling information of the target detection area through the information acquisition module, and divides it into several detection sub-areas. The model construction module constructs a fixed geological model and a variable geological model according to the detection results. The model analysis module dynamically monitors the change amount of geological modeling information, evaluates geological stability in real time, effectively identifies variable geological areas and takes preventive measures to reduce construction risks. The model update module dynamically adjusts the detection cycle according to the geological type, optimizes the resource allocation of system modeling, and improves the response speed and data timeliness. The early warning module issues early warning information according to the judgment results of the update module to strengthen risk management. The system uses historical detection data to set the change amount threshold and standard change range to ensure the accuracy and reliability of the evaluation. At the same time, it can be adjusted according to different geological conditions and project requirements, reducing unnecessary construction activities, saving resources, and improving construction safety.

[0038] Furthermore, in the present invention, when modeling the target detection area, the model is divided into two categories according to the type of modeled data: fixed geological model because its modeling data source is relatively stable and the degree of change under the influence of factors such as construction is small, while the modeling data source of variable geological model is easily affected by external factors and changes, and the degree and frequency of change are relatively large.

[0039] Furthermore, in the present invention, the model analysis module can evaluate geological stability in real time by dynamically monitoring and analyzing the change amount of geological modeling information, thereby identifying the changeable geological areas in advance and taking preventive measures to effectively reduce construction risks. The use of historical detection data to set the change amount threshold and standard change range ensures the accuracy and reliability of the evaluation. At the same time, it is also highly flexible and adaptable and can be adjusted according to different geological conditions and project requirements. In addition, this method saves resources and improves the safety of construction by reducing unnecessary construction activities.

[0040] Furthermore, in the present invention, the model update module effectively improves the response speed and data timeliness to changeable geological types by monitoring the change amount of geological modeling information and dynamically adjusting the detection cycle according to the relative maximum change amount. This method optimizes resource allocation, enhances risk management capabilities, and reduces uncertainty through data-driven decision-making. The flexibility and adaptability enable it to cope with various geological conditions.

[0041] Furthermore, in the present invention, the model update module dynamically adjusts the standard variation range and determines whether to issue warning information based on the latest detection results, thereby improving the accuracy and response speed of the warning system, thereby strengthening risk management and optimizing resource allocation. It can accurately identify potential unstable factors, reduce false alarms, and improve construction safety. At the same time, it also reflects technological advancement and environmental adaptability, ensures cost-effectiveness, and provides a scientific, effective and responsive strategy for geological monitoring and risk prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of a geological information acquisition system based on BIM according to an embodiment of the present invention;

[0043] Figure 2 This is a schematic diagram of the structure of the information collection module according to an embodiment of the present invention;

[0044] Figure 3 A logic diagram for determining the geological type of each detection sub-area for an embodiment of the present invention;

[0045] Figure 4 This is a logic diagram of the early warning module issuing early warning information according to an embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0048] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0049] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] See also Figure 1 As shown, it is a structural schematic diagram of a geological information collection system based on BIM according to an embodiment of the present invention; the present invention provides a geological information collection system based on BIM, including:

[0051] An information acquisition module, which is used to periodically acquire all geological modeling information of a target detection area, and divide the target detection area into a plurality of detection sub-areas, wherein the geological modeling information includes stable geological information and dynamic geological information;

[0052] A model building module, which is connected to the information acquisition module, and is used to build a fixed geological model according to the stable geological information collected by the information acquisition module, to build a variable geological model according to the dynamic geological information, and to update and build the fixed geological model and the variable geological model;

[0053] A model analysis module, which is connected to the information acquisition module and the model construction module respectively, and is used to determine the geological type of each of the detection sub-areas according to the change amount of the geological modeling information detected in adjacent detection cycles;

[0054] The model updating module is respectively connected with the information acquisition module, the model building module and the model analysis module to determine the model updating mode according to the geological type of each detection sub-area, and controls the model building module to update the fixed geological model and the variable geological model. The model updating mode includes:

[0055] shortening the detection period of the information acquisition module according to the relative maximum change in the changes of each geological modeling information, obtaining the detection result of the adjusted detection period, determining whether to issue early warning information for the detection sub-area, and determining the update frequency of each geological model according to the adjusted detection period;

[0056] Or, determining the amount of change in modeling information of each of the geological modeling information within a predetermined detection period, and determining whether a repeated acquisition condition is met according to the amount of change in modeling information, so as to extend the detection period of the geological modeling information of the detection sub-area and the update frequency of the corresponding fixed geological model and the variable geological model;

[0057] An early warning module is connected to the model updating module and is used to issue early warning information for the detection sub-area.

[0058] In implementation, the information collection module divides the target detection area into a number of detection sub-areas of the same size, and the number of the detection sub-areas is between 20 and 50.

[0059] The present invention periodically acquires geological modeling information of the target detection area through the information acquisition module, and divides it into several detection sub-areas. The model construction module constructs a fixed geological model and a variable geological model according to the detection results. The model analysis module dynamically monitors the change amount of geological modeling information, evaluates geological stability in real time, effectively identifies variable geological areas and takes preventive measures to reduce construction risks. The model update module dynamically adjusts the detection cycle according to the geological type, optimizes the resource allocation of the system modeling, and improves the response speed and data timeliness. The early warning module issues early warning information according to the judgment results of the update module to strengthen risk management. The system uses historical detection data to set the change amount threshold and standard change range to ensure the accuracy and reliability of the evaluation. At the same time, it can be adjusted according to different geological conditions and project requirements, reducing unnecessary construction activities, saving resources, and improving construction safety.

[0060] See also Figure 2 As shown, it is a schematic diagram of the structure of the information collection module of an embodiment of the present invention, and the information collection module includes:

[0061] A stable geological information collection component, which is used to collect stable geological information, including a rock detection unit for collecting rock information, a structure detection unit for collecting structure information, and a soil detection unit for collecting soil information;

[0062] A terrain information collection component, which is used to collect dynamic geological information, including a water level collection unit for collecting groundwater information, a terrain detection unit for collecting terrain information, and a soil mechanics detection unit for detecting soil mechanics parameter information;

[0063] The stable geological information includes the rock information, the structural information and the soil information, and the dynamic geological information includes the groundwater information, the topographic information and the soil mechanics parameter information.

[0064] In practice, the composition and structure of rocks are analyzed through core sampling or geological radar and electromagnetic detection of rock information, such as granite, limestone, etc.;

[0065] Combining field surveys with remote sensing technology to obtain structural information, as well as cross-section analysis at specific locations to obtain geological structures such as faults, folds, and joints;

[0066] Soil type and physical properties can be obtained through in-situ testing, such as standard penetration test (SPT) and cone penetration test (CPT), or by taking samples and sending them to a laboratory for particle size analysis (such as sieve test), density measurement, moisture content test, pH test, etc.;

[0067] By installing water level meters, obtaining groundwater level information regularly, analyzing water level data at different time points, observing the changing trend of groundwater levels, and conducting tracking tests to monitor flow rate and direction by adding markers to groundwater;

[0068] Use satellite images and aerial photography to obtain large-scale terrain information, such as using satellite-acquired elevation data (such as SRTM) to generate DEM, or use laser radar (LIDAR) technology to perform high-precision terrain measurement to generate DEM, use ArcGIS, QGIS and other software to process and analyze DEM data, generate three-dimensional terrain models, and obtain terrain information;

[0069] Soil mechanics parameter information determines the bearing capacity of soil by conducting soil physical and mechanical property tests, such as shear strength and compression tests.

[0070] It is understood that groundwater levels, flow direction and velocity may change due to construction activities (e.g. excavation, drainage); soil mechanics parameters: such as bearing capacity, compressibility and permeability, which vary due to soil disturbance, compaction or moisture changes.

[0071] For topographic data, the actual topography may change due to earthwork and landform transformation caused by construction, while other data such as soil type and rock layer generally remain relatively stable during the construction process.

[0072] Specifically, the model building module builds the fixed geological model according to the rock information and the structural information, and builds the variable geological model according to the groundwater information and the terrain information.

[0073] In the present invention, when modeling the target detection area, the model is divided into two categories according to the type of modeling data: fixed geological model because its modeling data source is relatively stable, and the degree of change under the influence of factors such as construction is small, while the modeling data source of variable geological model is easily affected by external factors and changes, and the degree and frequency of change are relatively large.

[0074] See also Figure 3 As shown, it is a logic diagram for determining the geological type of each detection sub-area in an embodiment of the present invention. The model analysis module determines the change amount of the geological modeling information according to the detection results of adjacent detection cycles, including:

[0075] The model analysis module obtains all the geological modeling information at the end of the previous detection cycle and the end of the current detection cycle for comparison, and records the difference in the comparison results of each geological modeling information as the modeling information change amount.

[0076] It is understandable that different geological information detection results are presented in different ways. For example, the water level height can be directly compared by numerical values ​​to obtain the change, while for terrain information, a large-area comparison is required to calculate the height difference between the DEMs at two time points to generate a change map, or to calculate the volume of the changed area to evaluate the increase or decrease in earthwork volume.

[0077] Specifically, the model analysis module determines the geological type of each detection sub-area according to the change amount of the geological modeling information.

[0078] If the change amount of the geological information meets the stable geological conditions, the geological type of the sub-area of ​​the detection area is a stable geological type;

[0079] If the change amount of the geological information does not meet the stable geological conditions, the geological type of the sub-area of ​​the detection area is a variable geological type;

[0080] The stable geological condition is that the change amount of each geological modeling information is within the corresponding standard change range and the total change amount of each geological modeling information does not exceed the corresponding total change amount threshold.

[0081] In implementation, the total change threshold of each geological modeling information is determined based on the difference in the change of each geological modeling information in the inspection data corresponding to the reinforcement without geological work and accidents in the historical inspection data, that is, the difference between the final value and the initial value of each geological modeling information during the construction process;

[0082] The standard variation range of each of the geological modeling information is determined by determining the historical detection data within 10% of the initial geological modeling information and the initial geological modeling information of the target detection area, and then screening out the historical detection data without accidents and the corresponding initial detection cycle time, determining the total number of initial detection cycles based on the engineering time and the initial detection cycle time, and determining the corresponding standard variation range of each geological modeling information based on the total change threshold of each geological modeling information and the total number of initial detection cycles.

[0083] In the present invention, the model analysis module can evaluate geological stability in real time by dynamically monitoring and analyzing the change amount of geological modeling information, thereby identifying the changeable geological areas in advance and taking preventive measures to effectively reduce construction risks. The use of historical detection data to set the change amount threshold and standard change range ensures the accuracy and reliability of the evaluation. At the same time, it is also highly flexible and adaptable and can be adjusted according to different geological conditions and project requirements. In addition, this method saves resources and improves the safety of construction by reducing unnecessary construction activities.

[0084] Specifically, the model updating module determines the model updating method according to the geological type of each detection sub-area, including:

[0085] If the geological type of the sub-region of the detection area is a changeable geological type, shorten the detection period of the information acquisition module according to the relative maximum change amount among the changes in the geological modeling information, obtain the detection result of the adjusted detection period, determine whether to issue early warning information for the detection sub-region, and determine the update frequency of each geological model according to the adjusted detection period;

[0086] If the geological type of the sub-area of ​​the detection zone is the same as the stable geological type, the change amount of the modeling information of each geological modeling information within the predetermined detection period is determined, and whether the repeated acquisition condition is met is determined according to the change amount of the modeling information, so as to extend the detection period of the geological modeling information of the detection sub-area and the update frequency of the corresponding fixed geological model and the changing geological model.

[0087] Specifically, the model updating module shortens the detection cycle of the information acquisition module according to the relative maximum change amount among the changes in the geological modeling information, including:

[0088] The model updating module determines the corresponding information change rate according to the change amount of each geological modeling information and the maximum value of the corresponding standard change range;

[0089] Determine the shortening amount of the detection period according to the maximum information change rate and the initial detection period;

[0090] The shortening amount of the detection period is positively correlated with the maximum information change rate, and the relative maximum change amount in the changes corresponds to the maximum information change rate.

[0091] In implementation, this update method corresponds to variable geological types, so there must be geological modeling information with an information change rate greater than 1. Because the dimensions of each geological information are different and the values ​​of the changes are different, the relative changes in each geological modeling information are represented by calculating the change rate, which can better reflect the changes in each geological modeling information.

[0092] The shortening amount of the detection period △T=(Y-1) / Y0×T0, Y is the maximum information change rate, T0 is the initial detection period, the initial detection period is selected in the interval [7d, 10d], and the adjusted detection period T'=T0-△T.

[0093] In the present invention, the model update module effectively improves the response speed and data timeliness to changeable geological types by monitoring the change amount of geological modeling information and dynamically adjusting the detection cycle according to the relative maximum change amount. This method optimizes resource allocation, enhances risk management capabilities, and reduces uncertainty through data-driven decision-making. The flexibility and adaptability enable it to cope with various geological conditions.

[0094] Specifically, the model updating module determines whether to issue warning information for the detection sub-area according to the detection result of the adjusted detection cycle and the adjusted standard variation range;

[0095] If there is a detection result of the adjusted detection cycle that exceeds the adjusted standard variation range, it is determined to issue a warning information for the detection sub-area;

[0096] Among them, the adjusted standard change range is determined based on the original standard change range and the maximum information change rate.

[0097] In implementation, the standard variation range after adjustment of each geological modeling information is obtained by comparing the maximum value of the original standard variation range with the maximum information change rate.

[0098] It is understandable that when updating the model, if the information change rate of the geological modeling information of the corresponding fixed geological model in the variable geological type is less than 1, it is not necessary to update synchronously with the variable geological model and use the original frequency for updating.

[0099] In the present invention, the model update module dynamically adjusts the standard variation range and determines whether to issue warning information based on the latest detection results, thereby improving the accuracy and response speed of the warning system, thereby strengthening risk management and optimizing resource allocation. It can accurately identify potential unstable factors, reduce false alarms, and improve construction safety. At the same time, it also embodies technological advancement and environmental adaptability, ensures cost-effectiveness, and provides a scientific, effective and responsive strategy for geological monitoring and risk prevention.

[0100] Specifically, the model determines whether the repeated acquisition condition is met according to the change amount of the modeling information of each geological modeling information within a predetermined detection period.

[0101] If the modeling information change amount of each of the geological modeling information within the predetermined detection period is less than the corresponding preset modeling information change amount, it is determined that the repeated acquisition condition is met.

[0102] In implementation, the change amount of each preset modeling information is 0.1 times the initial value of the corresponding geological modeling information; the preset detection period is preferably 3.

[0103] The extension amount of the detection cycle is determined according to the minimum value of the detection cycle that meets the repeated acquisition conditions. That is, if the geological modeling information with a change amount greater than the preset modeling information appears in the fifth detection cycle, the detection cycle is extended to three times the original one, and the update frequency becomes 1 / 3 of the original one. In this update mode, the fixed geological model and the changing geological model are updated synchronously.

[0104] See also Figure 4 As shown, it is a logic diagram of the early warning module issuing early warning information according to an embodiment of the present invention. The early warning module issues early warning information for the detection sub-area according to the determination result of the model updating module.

[0105] In implementation, the content of the early warning information can be the fixed geological model and the variable geological model of the corresponding detection sub-area, which is convenient for predicting geological disaster risks in areas with large changes.

[0106] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0107] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A geological information collection system based on BIM, characterized in that: include: An information acquisition module, which is used to periodically acquire all geological modeling information of a target detection area, and divide the target detection area into a plurality of detection sub-areas, wherein the geological modeling information includes stable geological information and dynamic geological information, wherein the stable geological information includes the rock information, the structural information and the soil information, and the dynamic geological information includes the groundwater information, the terrain information and the soil mechanics parameter information; A model building module, which is connected to the information acquisition module, and is used to build a fixed geological model according to the rock information and the structural information, to build a variable geological model according to the groundwater information and the terrain information, and to update the fixed geological model and the variable geological model; A model analysis module, which is connected to the information acquisition module and the model construction module respectively, and is used to determine the geological type of each detection sub-area according to the change amount of the geological modeling information detected in adjacent detection cycles; wherein, if the change amount of the geological information meets the stable geological condition, the geological type of the detection sub-area is a stable geological type; if the change amount of the geological information does not meet the stable geological condition, the geological type of the detection sub-area is a variable geological type, and the stable geological condition is that the change amount of each geological modeling information is within the corresponding standard change range and the total change amount of each geological modeling information does not exceed the corresponding total change amount threshold; The model updating module is respectively connected with the information acquisition module, the model building module and the model analysis module to determine the model updating mode according to the geological type of each detection sub-area, and controls the model building module to update the fixed geological model and the variable geological model. The model updating mode includes: If the geological type of the detection sub-area is a variable geological type, the detection period of the information acquisition module is shortened according to the relative maximum change amount among the changes in the geological modeling information, the detection result of the adjusted detection period is obtained, and it is determined whether to issue early warning information for the detection sub-area, and the update frequency of each geological model is determined according to the adjusted detection period, wherein, when updating the model, if the information change rate of the geological modeling information of the fixed geological model corresponding to the variable geological type is less than 1, it is not updated synchronously with the variable geological model, and the original frequency is used for updating; If the geological type of the detection sub-area is a stable geological type, then determining the amount of change in modeling information of each of the geological modeling information within a predetermined detection period, and judging whether the repeated acquisition condition is met according to the amount of change in modeling information, so as to extend the detection period of the geological modeling information of the detection sub-area and correspondingly determine the update frequency of the fixed geological model and the changing geological model, and the fixed geological model and the changing geological model are updated synchronously; An early warning module is connected to the model updating module and is used to issue early warning information for the detection sub-area.

2. The BIM-based geological information acquisition system according to claim 1, characterized in that: The information collection module includes: A stable geological information collection component, which is used to collect stable geological information, including a rock detection unit for collecting rock information, a structure detection unit for collecting structure information, and a soil detection unit for collecting soil information; A terrain information collection component, which is used to collect dynamic geological information, including a water level collection unit for collecting groundwater information, a terrain detection unit for collecting terrain information, and a soil mechanics detection unit for detecting soil mechanics parameter information; The stable geological information includes the rock information, the structural information and the soil information, and the dynamic geological information includes the groundwater information, the topographic information and the soil mechanics parameter information.

3. The BIM-based geological information acquisition system according to claim 2, characterized in that: The model analysis module determines the change amount of the geological modeling information according to the detection results of adjacent detection cycles, including: The model analysis module obtains all the geological modeling information at the end of the previous detection cycle and the end of the current detection cycle for comparison, and records the difference in the comparison results of each geological modeling information as the change in modeling information.

4. The BIM-based geological information acquisition system according to claim 3 is characterized in that: The model updating module shortens the detection cycle of the information acquisition module according to the relative maximum change amount among the changes in the geological modeling information, including: The model updating module determines the corresponding information change rate according to the change amount of each geological modeling information and the maximum value of the corresponding standard change range; Determine the shortening amount of the detection period according to the maximum information change rate and the initial detection period; The shortening amount of the detection period is positively correlated with the maximum information change rate, and the relative maximum change amount in the changes corresponds to the maximum information change rate.

5. The BIM-based geological information acquisition system according to claim 4, characterized in that: The model updating module determines whether to issue warning information for the detection sub-area according to the detection result of the adjusted detection period and the adjusted standard variation range; If there is a detection result of the adjusted detection cycle that exceeds the adjusted standard variation range, it is determined to issue a warning information for the detection sub-area; Among them, the adjusted standard change range is determined based on the original standard change range and the maximum information change rate.

6. The BIM-based geological information acquisition system according to claim 5, characterized in that: The model determines whether the repeated acquisition condition is met according to the change amount of the modeling information of each geological modeling information within a predetermined detection period, If the modeling information change amount of each of the geological modeling information within the predetermined detection period is less than the corresponding preset modeling information change amount, it is determined that the repeated acquisition condition is met.

7. The BIM-based geological information acquisition system according to claim 6, characterized in that: The early warning module issues early warning information for the detection sub-area according to the determination result of the model updating module.

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