A real-time bearing monitoring method and system for foundation pit

Abstract

The present invention is applicable to the computer field, and provides a real-time bearing monitoring method and system for a foundation pit, the method comprising: obtaining detection information of a monitoring position of a foundation pit, the detection information at least comprising displacement information of a retaining structure and deformation information of the ground outside the pit; judging the detection information, judging the relationship between the detection information and a corresponding first change threshold, the first change threshold being less than a warning change threshold; when the detection information reaches the first change threshold but does not reach the warning change threshold, judging whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure based on the change relationship of the detection information over time. The beneficial effect of the present invention is that relevant prompts are given before the detection information reaches the warning change threshold, that is, relevant prompts are given in advance, so as to find a basis for the deformation of the ground outside the pit, thereby facilitating the maintenance of the corresponding retaining structure, and improving the safety of foundation pit construction and the stability of its surrounding structures.

Description

Technical Field

[0001] The invention belongs to the field of computers, and in particular relates to a real-time bearing monitoring method and system for a foundation pit. Background Art

[0002] The first task after the start of a construction project is to carry out foundation construction. There are two methods of foundation construction: forward method and reverse method. The forward method is widely used because it is intuitive, simple and inexpensive. The forward method must first dig a foundation pit. The foundation pit is a soil pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. Due to various reasons, foundation pit collapses occur from time to time, so it is necessary to monitor the bearing capacity of the foundation pit in real time.

[0003] In the prior art, the bearing capacity of the foundation pit is monitored by the limit state (SLS) monitoring method. The limit state design method refers to clearly dividing the limit state of the structure into the bearing capacity limit state and the normal use limit state. The ratio of the two is the safety factor. The change of the limit state (SLS) monitoring method can only reflect the change of the applied load, but is not directly related to the safety level of the structure. A large part of the bearing capacity of the foundation pit is reflected in the support of the foundation pit.

[0004] By implementing the above technology, it can be found that even if the limit state (SLS) monitoring method is used for monitoring, relevant warnings will only be issued when the safety factor is low. Therefore, its warning level is low and the warning has a certain lag. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a method and system for real-time bearing monitoring of a foundation pit, aiming to solve the problems raised in the above-mentioned background technology.

[0006] The embodiment of the present invention is implemented as follows: on the one hand, a method for real-time bearing monitoring of a foundation pit, the method comprising the following steps:

[0007] Acquire detection information of the monitoring position of the foundation pit, wherein the detection information at least includes displacement information of the retaining structure and deformation information of the ground outside the pit;

[0008] Judging the detection information, judging the relationship between the detection information and a corresponding first change threshold, the first change threshold being less than a warning change threshold;

[0009] When the detection information reaches the first change threshold but does not reach the warning change threshold, determining whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time;

[0010] If so, a prompt instruction and inspection reference information for inspecting the retaining structure are sent to the construction management end, where the inspection reference information is used to indicate the position of abnormal associated changes in the retaining structure.

[0011] As a further solution of the present invention, the acquisition of detection information of the monitoring position of the foundation pit, wherein the detection information at least includes displacement information of the retaining structure and deformation information of the ground outside the pit, specifically includes:

[0012] Get the settings of the collection cycle;

[0013] Collect monitoring data of the monitoring position of the foundation pit once every collection period, wherein the monitoring position is obtained by presetting;

[0014] The change information of the monitoring data is calculated to generate detection information of the monitoring position of the foundation pit, wherein the detection information includes displacement information of the supporting structure and deformation information of the ground outside the pit.

[0015] As a further solution of the present invention, the displacement information of the retaining structure includes vertical displacement information of the retaining structure and / or lateral displacement information of the retaining structure, and the deformation information of the ground outside the pit includes settlement information of the ground outside the pit and / or horizontal displacement information of the ground outside the pit.

[0016] As a further solution of the present invention, the judging of the detection information to judge the relationship between the detection information and the corresponding first change threshold, wherein the first change threshold is less than the warning change threshold, specifically includes:

[0017] Compare the individual data in the detection information with the corresponding first change threshold and the early warning change threshold respectively;

[0018] Determine whether there is at least one single data item that is greater than or equal to the corresponding first change threshold and less than the early warning change threshold, wherein the early warning change threshold is used to represent the single data item corresponding to the early warning instruction directly reported to the construction management end.

[0019] As a further solution of the present invention, when the detection information reaches the first change threshold but does not reach the warning change threshold, determining whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time specifically includes:

[0020] When at least one of the single data in the detection information reaches the first change threshold but does not reach the warning change threshold, the single data corresponding to the displacement information of the marking support structure is the first data, and the single data corresponding to the deformation information of the ground outside the pit is the second data;

[0021] Displaying the variation relationship between first data corresponding to the displacement information of the supporting structure and time in a coordinate system to generate a first variation relationship image;

[0022] Displaying the variation relationship between the second data corresponding to the deformation information of the ground outside the pit and time in the coordinate system to generate a second variation relationship image;

[0023] Intercepting a plurality of sub-images in the first change relationship image that are within the floating range of the corresponding first change threshold and satisfy the first calibration time length, and generating a plurality of first sub-images;

[0024] Intercepting a plurality of sub-images in the second change relationship image that are within the floating range of the corresponding first change threshold and satisfy the second calibration time length, and generating a plurality of second sub-images;

[0025] Identify the similarity between a number of first sub-images and a number of second sub-images corresponding to a preset change delay time. If the proportion of sub-images whose similarity reaches a similarity threshold is greater than a preset proportion, it is determined that there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the supporting structure; otherwise, it is determined that there is a non-positive correlation.

[0026] As a further solution of the present invention, the preset change delay time is the output delay time obtained by operating the input delay time through a delay function.

[0027] As a further embodiment of the present invention, the method further comprises:

[0028] determining changes in first-order derivatives and second-order derivatives of a plurality of first sub-images;

[0029] determining changes in first-order derivatives and second-order derivatives of a plurality of second sub-images;

[0030] When the first-order derivative of the first change relationship image is greater than 0 but the second-order derivative is less than or equal to 0, the first-order derivative of the second sub-image is greater than 0 but the second-order derivative is less than or equal to 0, generating three-level prompt information about the corresponding monitoring position;

[0031] When the first-order derivative of the first change relationship image is greater than 0 but the second-order derivative is less than or equal to 0, the first-order derivative of the second sub-image is greater than 0 and the second-order derivative is greater than 0, secondary prompt information about the corresponding monitoring position is generated;

[0032] When the first-order derivative of the first change relationship image is greater than 0 and the second-order derivative is greater than 0, the first-order derivative of the second sub-image is greater than 0 and the second-order derivative is greater than 0, primary prompt information about the corresponding monitoring position is generated.

[0033] As a further solution of the present invention, the prompt instruction and inspection reference information for inspecting the support structure are sent to the construction management end, wherein the inspection reference information is used to indicate the abnormal associated change position of the support structure and specifically includes:

[0034] Sending a prompt instruction to the construction management end to check the support structure, wherein the prompt instruction includes first-level prompt information, second-level prompt information and third-level prompt information;

[0035] The suspected bulge at the bottom of the foundation pit is located according to the first-level prompt information, and inspection reference information for inspecting the retaining structure is sent to the construction management end, wherein the inspection reference information of the retaining structure at least includes the suspected bulge at the bottom of the foundation pit.

[0036] As a further solution of the present invention, locating the suspicious bulge position at the bottom of the foundation pit according to the first-level prompt information specifically includes:

[0037] Locate the monitoring position corresponding to the first-level prompt information, and obtain leakage information of the grouting effect of the leakage position within the first preset range of the monitoring position, wherein the grouting leakage information at least includes the leakage amount;

[0038] Locating a leakage position where the leakage amount reaches a preset leakage amount threshold, and obtaining a primary bulge position within a second preset range of the leakage position where the leakage amount reaches the preset leakage amount threshold;

[0039] Identify whether the time period in which the uplift height change of the primary uplift position reaches a preset height threshold overlaps with the time period in which the warning change threshold is reached in the first-level prompt information. If so, mark the corresponding primary uplift position as a suspicious uplift position.

[0040] As a further solution of the present invention, on the other hand, a real-time bearing monitoring system for a foundation pit is provided, the system comprising:

[0041] An acquisition module, the acquisition module is used to: acquire detection information of the monitoring position of the foundation pit, the detection information at least including displacement information of the retaining structure and deformation information of the ground outside the pit;

[0042] A judgment module, the judgment module is used to: judge the detection information, judge the relationship between the detection information and the corresponding first change threshold, the first change threshold is less than the warning change threshold;

[0043] A correlation detection module, wherein the correlation detection module is used to: when the detection information reaches a first change threshold but does not reach a warning change threshold, determine whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time;

[0044] A prompt module, the prompt module is used to: if yes, send a prompt instruction and inspection reference information for inspecting the retaining structure to the construction management end, the inspection reference information is used to indicate the abnormal associated change position of the retaining structure.

[0045] A method and system for real-time bearing monitoring of a foundation pit provided by an embodiment of the present invention determines the relationship between the detection information and a corresponding first change threshold value by judging the detection information, wherein the first change threshold value is less than the early warning change threshold value. When the detection information reaches the first change threshold value but does not reach the early warning change threshold value, whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure is determined based on the change relationship of the detection information over time. If so, a prompt instruction and inspection reference information for inspecting the retaining structure are sent to the construction management end. The inspection reference information is used to indicate the abnormal associated change position of the retaining structure. Relevant prompts are made before the detection information reaches the early warning change threshold value, that is, relevant prompts are made in advance, and the inspection of the retaining structure can be indicated, as well as the abnormal associated change position of the retaining structure, thereby improving the monitoring effect and finding a basis for the deformation of the ground outside the pit, thereby facilitating the maintenance of the corresponding retaining structure and improving the safety of foundation pit construction and the stability of its surrounding structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a main flow chart of a real-time bearing monitoring method for a foundation pit.

[0047] Figure 2 The flowchart is for judging the detection information and judging the relationship between the detection information and the corresponding first change threshold.

[0048] Figure 3 It is a flow chart for determining whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure based on the relationship between the changes of the detection information over time.

[0049] Figure 4 The present invention is a flow chart of another embodiment of a method for real-time bearing monitoring of a foundation pit.

[0050] Figure 5 The present invention is a flow chart for locating the suspicious uplift position at the bottom of a foundation pit in a real-time bearing monitoring method of a foundation pit.

[0051] Figure 6 It is the main structural diagram of a foundation pit real-time load-bearing monitoring system. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0054] The present invention provides a foundation pit real-time bearing monitoring method and system, which solve the technical problems in the background technology.

[0055] like Figure 1 FIG. 1 is a main flow chart of a method for real-time monitoring of foundation pit bearing capacity provided by an embodiment of the present invention. The method for real-time monitoring of foundation pit bearing capacity includes:

[0056] Step S10: Acquire detection information of the monitoring position of the foundation pit, wherein the detection information at least includes displacement information of the retaining structure and deformation information of the ground outside the pit; a deep foundation pit for a building refers to a space excavated from the ground downwards with a depth greater than or equal to 5 m for the construction of the underground part of a building (structure) and the burial of underground facilities and equipment;

[0057] Step S11: judging the detection information, judging the relationship between the detection information and the corresponding first change threshold, the first change threshold being less than the warning change threshold;

[0058] Step S12: when the detection information reaches the first change threshold but does not reach the warning change threshold, determining whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time;

[0059] Step S13: If yes, a prompt instruction and inspection reference information for inspecting the retaining structure are sent to the construction management end, where the inspection reference information is used to indicate the position of abnormal associated changes in the retaining structure.

[0060] When this embodiment is applied, the relationship between the detection information and the corresponding first change threshold is judged by judging the detection information, and the first change threshold is less than the warning change threshold. When the detection information reaches the first change threshold but does not reach the warning change threshold, it is determined whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time. If so, a prompt instruction and inspection reference information for checking the retaining structure are sent to the construction management end. The inspection reference information is used to indicate the abnormal associated change position of the retaining structure. Relevant prompts are made before the detection information reaches the warning change threshold, that is, relevant prompts are made in advance, and instructions for checking the retaining structure and indicating the abnormal associated change position of the retaining structure can be given to improve the monitoring effect and find a basis for the deformation of the ground outside the pit, thereby facilitating the maintenance of the corresponding retaining structure and improving the safety of foundation pit construction and the stability of its surrounding structures.

[0061] As a preferred embodiment of the present invention, the acquisition of detection information of the monitoring position of the foundation pit, wherein the detection information at least includes displacement information of the retaining structure and deformation information of the ground outside the pit, specifically includes:

[0062] Step S101: obtaining the setting of the collection cycle;

[0063] Step S102: collecting monitoring data of a monitoring position of the foundation pit once every collection period, wherein the monitoring position is obtained by presetting;

[0064] Step S103: Calculate the change information of the monitoring data to generate detection information of the monitoring position of the foundation pit, wherein the detection information includes the displacement information of the supporting structure and the deformation information of the ground outside the pit.

[0065] It should be understood that the detection information is essentially a kind of change information of monitoring data, which can reflect the displacement of the supporting structure and the change of deformation of the ground outside the pit.

[0066] As a preferred embodiment of the present invention, the displacement information of the retaining structure includes the vertical displacement information of the retaining structure and / or the lateral displacement information of the retaining structure; the retaining structure includes but is not limited to the structure formed by the support, retaining wall and anchor rod; it should be noted that the arrangement position of the monitoring instrument of the foundation pit engineering instrument monitoring project can be implemented according to the "Technical Specifications for Process Monitoring of Construction Foundation Pit"; for example, the horizontal or vertical displacement monitoring points of the retaining wall should be arranged along the periphery of the foundation pit, and the monitoring points should be arranged in the middle of each side of the foundation pit, at the positive corner, and at the position adjacent to the protected object. The horizontal spacing between the monitoring points should not be greater than 20m, and the number of monitoring points on each side should not be less than three. The horizontal and vertical monitoring points should be common points, and the monitoring points should be arranged on the retaining wall, etc., which will not be described in detail here;

[0067] The deformation information of the ground outside the pit includes settlement information of the ground outside the pit and / or horizontal displacement information of the ground outside the pit, such as cracks and settlement of roads and other locations. The deformation information of the ground outside the pit may also include inclination and the like.

[0068] like Figure 2 As shown, as a preferred embodiment of the present invention, the judging of the detection information, judging the relationship between the detection information and the corresponding first change threshold, the first change threshold being less than the warning change threshold specifically includes:

[0069] Step S111: comparing the individual data in the detection information with the corresponding first change threshold and warning change threshold respectively;

[0070] Step S112: Determine whether there is at least one single item of data that is greater than or equal to the corresponding first change threshold and less than the early warning change threshold, wherein the early warning change threshold is used to represent the single item of data corresponding to the early warning instruction directly reported to the construction management end.

[0071] It should be understood that according to the Technical Specifications for Construction Pit Process Monitoring, the warning change threshold is generally set by the construction design party.

[0072] like Figure 3 As shown, as a preferred embodiment of the present invention, when the detection information reaches the first change threshold but does not reach the warning change threshold, determining whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time specifically includes:

[0073] Step S121: when at least one of the single data in the detection information reaches the first change threshold but does not reach the warning change threshold, the single data corresponding to the displacement information of the support structure is marked as the first data, and the single data corresponding to the deformation information of the ground outside the pit is marked as the second data;

[0074] Step S122: Displaying the variation relationship between the first data corresponding to the displacement information of the supporting structure and time in a coordinate system to generate a first variation relationship image;

[0075] Step S123: Displaying the variation relationship between the second data corresponding to the deformation information of the ground outside the pit and time in the coordinate system to generate a second variation relationship image;

[0076] Step S124: intercepting a plurality of sub-images in the first change relationship image that are within the floating range of the corresponding first change threshold and meet the first calibration time length, and generating a plurality of first sub-images;

[0077] Step S125: intercepting a plurality of sub-images in the second change relationship image that are within the floating range of the corresponding first change threshold and meet the second calibration time length, and generating a plurality of second sub-images;

[0078] The reason for setting the first change threshold above is that the correlation between the two will only initially appear before and after the displacement information of the supporting structure reaches the corresponding first change threshold or the deformation information of the ground outside the pit reaches the corresponding first change threshold, because the displacement of the supporting structure at the corresponding monitoring position is the main factor causing the deformation of the ground outside the pit, but other factors cannot be ruled out.

[0079] Step S126: Identify the similarity between a number of first sub-images and a number of second sub-images corresponding to a preset change delay time. If the proportion of sub-images whose similarity reaches the similarity threshold is greater than a preset proportion, it is determined that there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the supporting structure; otherwise, it is determined that there is a non-positive correlation.

[0080] When this embodiment is applied, the proportion of sub-images whose similarity reaches the similarity threshold is greater than the preset proportion, indicating that the situation where the first sub-image and the second sub-image are similar occupies a preset proportion. For example, the first sub-image and the second sub-image both change in a positive proportional function, or the deformation information of the ground outside the pit changes with time and the correlation coefficient of the deformation information of the ground outside the pit is very high, and there is a positive correlation between the two, and this positive correlation is manifested as a delayed effect due to the transmission effect of the geological structure.

[0081] As a preferred embodiment of the present invention, the preset change delay time is the output delay time obtained by operating the input delay time through a delay function. The input delay time can be set manually based on experience, for example, 1h. As the displacement of the retaining structure increases, the delay time can become shorter and shorter.

[0082] It can be understood that the delay function can be Y=KX, where 0<K≤1, indicating that the delay time can be shorter and shorter, indicating that the displacement of the retaining structure affects the deformation of the ground outside the pit more and more rapidly.

[0083] like Figure 4 As shown, as a preferred embodiment of the present invention, the method further includes:

[0084] Step S20: determining changes in first-order derivatives and second-order derivatives of a plurality of first sub-images;

[0085] Step S21: determining changes in first-order derivatives and second-order derivatives of a plurality of second sub-images;

[0086] Step S22: When the first-order derivative of the first change relationship image is greater than 0 but the second-order derivative is less than or equal to 0, and the first-order derivative of the second sub-image is greater than 0 but the second-order derivative is less than or equal to 0, a three-level prompt information about the corresponding monitoring position is generated; indicating that the increase in the displacement of the retaining structure is convergent, and the increase in the deformation of the ground outside the pit is also convergent, and this should be paid attention to;

[0087] Step S23: When the first-order derivative of the first change relationship image is greater than 0 but the second-order derivative is less than or equal to 0, the first-order derivative of the second sub-image is greater than 0 and the second-order derivative is greater than 0, a secondary prompt information about the corresponding monitoring position is generated; indicating that the increase in the displacement of the retaining structure is convergent, but the increase in the deformation of the ground outside the pit is not convergent, and there is a possibility that it will increase faster and faster, which should be given enough attention;

[0088] Step S24: When the first-order derivative of the first change relationship image is greater than 0 and the second-order derivative is greater than 0, and the first-order derivative of the second sub-image is greater than 0 and the second-order derivative is greater than 0, a first-level prompt information about the corresponding monitoring position is generated. This indicates that the increase in the displacement of the retaining structure is not convergent, but the increase in the deformation of the ground outside the pit is not convergent, and this should be taken seriously immediately;

[0089] When this embodiment is applied, the third-level prompt information, the second-level prompt information, and the first-level prompt information have gradually increasing prompt levels, which can represent different prompt levels and play a role in early warning.

[0090] As a preferred embodiment of the present invention, the prompt instruction and inspection reference information for inspecting the retaining structure are sent to the construction management end, wherein the inspection reference information is used to indicate the abnormal associated change position of the retaining structure and specifically includes:

[0091] Step S30: Sending a prompt instruction for checking the support structure to the construction management terminal, wherein the prompt instruction includes first-level prompt information, second-level prompt information, and third-level prompt information;

[0092] Step S31: Locate the suspected bulge at the bottom of the foundation pit according to the first-level prompt information, and send inspection reference information for inspecting the retaining structure to the construction management end, wherein the inspection reference information for the retaining structure at least includes the suspected bulge at the bottom of the foundation pit.

[0093] like Figure 5 As shown, in one case of this embodiment, locating the suspicious bulge position at the bottom of the foundation pit according to the first-level prompt information specifically includes:

[0094] Step S311: Locate the monitoring position corresponding to the first-level prompt information, and obtain the leakage information of the grouting effect of the leakage position within the first preset range of the monitoring position, wherein the grouting leakage information at least includes the leakage amount; the grouting leakage information indicates that leakage prevention is achieved through concrete grouting, etc.; the larger the leakage amount and the closer it is to the monitoring position, the more likely it is that the water body enters after the deformation and cracking of the ground outside the pit; the leakage amount can be input manually or automatically identified, and it does not require an accurate amount, but only requires the size of the leakage amount of the leakage position to be compared;

[0095] Step S312: Locate the leakage position where the leakage reaches the preset leakage threshold, and obtain the primary uplift position within the second preset range of the leakage position that reaches the preset leakage threshold; the leakage position indicates that it is very likely caused by the entry of water after deformation and cracking of the ground outside the pit. The leakage position can prove the influence of water on the foundation pit after deformation and cracking, such as leakage of the protective structure, and the primary uplift position is located precisely through grouting leakage;

[0096] Step S313: Identify whether the time period when the uplift height of the primary uplift position reaches the preset height threshold overlaps with the time period when the first-level prompt information reaches the warning change threshold. If so, mark the corresponding primary uplift position as a suspicious uplift position. Uplift is a gradual process. The time period of the preset height threshold overlaps with the time period of the first-level prompt information reaching the warning change threshold, indicating that it is due to the deformation and cracking of the ground outside the pit, the water body enters the foundation pit through the deformation and cracking, and the structure in the soil enters the foundation pit;

[0097] It is understandable that the main reasons for the uplift of the pit bottom include insufficient bearing capacity of the pit bottom foundation, large ground overload, and soil rebound during excavation and load reduction at the pit bottom. There is also an important direct reason that the soil layer absorbs water, resulting in creep deformation. The main hazards of the uplift of the pit bottom include being unfavorable to the construction of the main project, damaging the internal support structure, and causing the pre-constructed engineering piles to float. Therefore, by locating the monitoring position corresponding to the first-level prompt information, the suspicious uplift position is finally located, which can arouse the vigilance and attention of the construction management center, give corresponding warnings during specific construction, and prioritize internal inspections for the suspicious uplift positions, thereby playing a role in preventing problems before they occur.

[0098] like Figure 6 As shown, as another preferred embodiment of the present invention, on the other hand, a real-time bearing monitoring system for a foundation pit comprises:

[0099] An acquisition module 100, the acquisition module is used to: acquire detection information of a monitoring position of a foundation pit, the detection information at least including displacement information of a retaining structure and deformation information of the ground outside the pit;

[0100] A judgment module 200, the judgment module is used to: judge the detection information, judge the relationship between the detection information and the corresponding first change threshold, the first change threshold is less than the warning change threshold;

[0101] A correlation detection module 300, which is used to: when the detection information reaches a first change threshold but does not reach a warning change threshold, determine whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time;

[0102] Prompt module 400, the prompt module is used to: if yes, send a prompt instruction and inspection reference information for inspecting the retaining structure to the construction management end, the inspection reference information is used to indicate the abnormal associated change position of the retaining structure.

[0103] The above-mentioned embodiment of the present invention provides a real-time bearing monitoring method for a foundation pit, and based on the real-time bearing monitoring method for a foundation pit, provides a real-time bearing monitoring system for a foundation pit, by judging the detection information, judging the relationship between the detection information and the corresponding first change threshold, the first change threshold is less than the warning change threshold, when the detection information reaches the first change threshold but does not reach the warning change threshold, then according to the change relationship of the detection information over time, it is determined whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure, if so, a prompt instruction and inspection reference information for checking the retaining structure are sent to the construction management end, the inspection reference information is used to indicate the abnormal associated change position of the retaining structure, and relevant prompts are made before the detection information reaches the warning change threshold, that is, relevant prompts are made in advance, and the inspection of the retaining structure can be indicated, as well as the abnormal associated change position of the retaining structure, thereby improving the monitoring effect and finding a basis for the deformation of the ground outside the pit, thereby facilitating the maintenance of the corresponding retaining structure and improving the safety of foundation pit construction and the stability of its surrounding structures.

[0104] In order to load the above-mentioned method and system and enable it to run smoothly, the system, in addition to the various modules mentioned above, may also include more or fewer components than described above, or a combination of certain components, or different components, for example, it may include input and output devices, network access devices, buses, processors and memories, etc.

[0105] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the system, and various interfaces and lines are used to connect various parts.

[0106] The above-mentioned memory can be used to store computer and system programs and / or modules. The above-mentioned processor realizes the above-mentioned various functions by running or executing the computer programs and / or modules stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as an information collection template display function, a product information release function, etc.). The data storage area can store data created according to the use of the berth status display system (such as product information collection templates corresponding to different product types, product information that needs to be released by different product providers, etc.). In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SmartMediaCard, SMC), a secure digital (SecureDigital, SD) card, a flash card (FlashCard), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0107] It should be understood that, although each step in the flow chart of each embodiment of the present invention is shown in sequence according to the indication of the arrow, these steps are not necessarily performed in sequence according to the order indicated by the arrow. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be performed in other orders. Moreover, at least a portion of the steps in each embodiment may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these sub-steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0108] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0110] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A real-time bearing monitoring method for a foundation pit, characterized in that: The method comprises: Acquire detection information of the monitoring position of the foundation pit, wherein the detection information at least includes displacement information of the retaining structure and deformation information of the ground outside the pit; Judging the detection information, judging the relationship between the detection information and a corresponding first change threshold, the first change threshold being less than a warning change threshold; When the detection information reaches the first change threshold but does not reach the warning change threshold, determining whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time; If yes, a prompt instruction and inspection reference information for inspecting the retaining structure are sent to the construction management end, where the inspection reference information is used to indicate the abnormal associated change position of the retaining structure; The judging of the detection information to judge the relationship between the detection information and the corresponding first change threshold, wherein the first change threshold is less than the warning change threshold, specifically includes: Compare the individual data in the detection information with the corresponding first change threshold and the early warning change threshold respectively; Determine whether there is at least one single item of data that is greater than or equal to the corresponding first change threshold and less than the early warning change threshold, wherein the early warning change threshold is used to represent the single item of data corresponding to the early warning instruction directly reported to the construction management end; When the detection information reaches the first change threshold but does not reach the warning change threshold, determining whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time specifically includes: When at least one of the single data in the detection information reaches the first change threshold but does not reach the warning change threshold, the single data corresponding to the displacement information of the marking support structure is the first data, and the single data corresponding to the deformation information of the ground outside the pit is the second data; Displaying the variation relationship between first data corresponding to the displacement information of the supporting structure and time in a coordinate system to generate a first variation relationship image; Displaying the variation relationship between the second data corresponding to the deformation information of the ground outside the pit and time in the coordinate system to generate a second variation relationship image; Intercepting a plurality of sub-images in the first change relationship image that are within the floating range of the corresponding first change threshold and satisfy the first calibration time length, and generating a plurality of first sub-images; Intercepting a plurality of sub-images in the second change relationship image that are within the floating range of the corresponding first change threshold and satisfy the second calibration time length, and generating a plurality of second sub-images; Identify the similarity between a number of first sub-images and a number of second sub-images corresponding to a preset change delay time. If the proportion of sub-images whose similarity reaches a similarity threshold is greater than a preset proportion, it is determined that there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the supporting structure; otherwise, it is determined that there is a non-positive correlation.

2. The real-time bearing monitoring method for foundation pit according to claim 1 is characterized in that: The acquisition of detection information of the monitoring position of the foundation pit, wherein the detection information at least includes displacement information of the retaining structure and deformation information of the ground outside the pit, specifically includes: Get the settings of the collection cycle; Collect monitoring data of the monitoring position of the foundation pit once every collection period, wherein the monitoring position is obtained by presetting; The change information of the monitoring data is calculated to generate detection information of the monitoring position of the foundation pit, wherein the detection information includes displacement information of the supporting structure and deformation information of the ground outside the pit.

3. The real-time bearing monitoring method for foundation pit according to claim 2 is characterized in that: The displacement information of the retaining structure includes vertical displacement information of the retaining structure and / or lateral displacement information of the retaining structure, and the deformation information of the ground outside the pit includes settlement information of the ground outside the pit and / or horizontal displacement information of the ground outside the pit.

4. The real-time bearing monitoring method for foundation pit according to claim 1 is characterized in that: The preset change delay time is the output delay time obtained by operating the input delay time through a delay function.

5. The real-time bearing monitoring method for foundation pit according to claim 1 is characterized in that: The method further comprises: determining changes in first-order derivatives and second-order derivatives of a plurality of first sub-images; determining changes in first-order derivatives and second-order derivatives of a plurality of second sub-images; When the first-order derivative of the first change relationship image is greater than 0 but the second-order derivative is less than or equal to 0, the first-order derivative of the second sub-image is greater than 0 but the second-order derivative is less than or equal to 0, generating three-level prompt information about the corresponding monitoring position; When the first-order derivative of the first change relationship image is greater than 0 but the second-order derivative is less than or equal to 0, the first-order derivative of the second sub-image is greater than 0 and the second-order derivative is greater than 0, generating secondary prompt information about the corresponding monitoring position; When the first-order derivative of the first change relationship image is greater than 0 and the second-order derivative is greater than 0, the first-order derivative of the second sub-image is greater than 0 and the second-order derivative is greater than 0, primary prompt information about the corresponding monitoring position is generated.

6. The method for real-time foundation pit bearing monitoring according to claim 5, characterized in that: The sending of a prompt instruction and inspection reference information for inspecting the support structure to the construction management terminal, wherein the inspection reference information is used to indicate the abnormal associated change position of the support structure, specifically includes: Sending a prompt instruction to the construction management end to check the support structure, wherein the prompt instruction includes first-level prompt information, second-level prompt information and third-level prompt information; The suspected bulge at the bottom of the foundation pit is located according to the first-level prompt information, and inspection reference information for inspecting the retaining structure is sent to the construction management end, wherein the inspection reference information of the retaining structure at least includes the suspected bulge at the bottom of the foundation pit.

7. The method for real-time foundation pit bearing monitoring according to claim 5, characterized in that: The method of locating the suspicious bulge position at the bottom of the foundation pit according to the first-level prompt information specifically includes: Locate the monitoring position corresponding to the first-level prompt information, and obtain leakage information of the grouting effect of the leakage position within the first preset range of the monitoring position, wherein the grouting leakage information at least includes the leakage amount; Locating a leakage position where the leakage amount reaches a preset leakage amount threshold, and obtaining a primary bulge position within a second preset range of the leakage position where the leakage amount reaches the preset leakage amount threshold; Identify whether the time period in which the uplift height change of the primary uplift position reaches a preset height threshold overlaps with the time period in which the warning change threshold is reached in the first-level prompt information. If so, mark the corresponding primary uplift position as a suspicious uplift position.

8. A real-time bearing monitoring system for foundation pits, used to implement the method described in any one of claims 1 to 7, characterized in that: The system comprises: An acquisition module, the acquisition module is used to: acquire detection information of the monitoring position of the foundation pit, the detection information at least including displacement information of the retaining structure and deformation information of the ground outside the pit; A judgment module, the judgment module is used to: judge the detection information, judge the relationship between the detection information and the corresponding first change threshold, the first change threshold is less than the warning change threshold; A correlation detection module, wherein the correlation detection module is used to: when the detection information reaches a first change threshold but does not reach a warning change threshold, determine whether there is a positive correlation between the deformation information of the ground outside the pit and the displacement information of the retaining structure according to the change relationship of the detection information over time; A prompt module, the prompt module is used to: if yes, send a prompt instruction and inspection reference information for inspecting the retaining structure to the construction management end, the inspection reference information is used to indicate the abnormal associated change position of the retaining structure.

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