A full-cycle foundation pit structure distributed monitoring and early warning method and system

Abstract

The application discloses a kind of whole cycle foundation pit structure distributed monitoring and early warning method, comprising: after foundation pit is built, construct distributed foundation pit structure data sensor network, collect the real-time data of foundation pit structure;All sensor installation points in the foundation pit structure data sensor network are equipped with sensor communication module, and sensor communication transmission mechanism is established;Integrated computing service unit analyzes and processes the real-time data of the foundation pit structure, obtains the classification monitoring and overall monitoring result of foundation pit structure, and issues corresponding early warning information.The technical scheme can provide more comprehensive and accurate data.Using direct communication and indirect communication communication transmission mechanism can ensure timely transmission and accuracy of sensor data, reduce data transmission delay and the possibility of data transmission error.In addition, the acquisition of multiple monitoring results can better understand the state and change of foundation pit structure, so as to timely issue early warning information.

Description

Technical Field

[0001] This invention relates to the field of foundation pit structure monitoring technology, and more specifically to a distributed monitoring and early warning method and system for foundation pit structures throughout their entire lifecycle. Background Technology

[0002] Today, the foundation pit, as the basis and initial construction project of a building, is a crucial guarantee for the smooth and safe progress of subsequent construction work. The entire lifecycle refers to the entire period from the construction of the foundation pit until the building is completed and put into use, encompassing all processes from construction to demolition. The main purpose of full-lifecycle monitoring and early warning of the foundation pit structure is to continuously collect and evaluate data on the foundation pit structure, and to issue timely warnings when abnormal data is detected, thereby eliminating potential safety hazards related to the building's foundation pit.

[0003] Existing foundation pit structure monitoring solutions suffer from several drawbacks. First, sensor placement cannot be effectively integrated with the specific foundation pit structure. Second, a unified monitoring network cannot be formed for different types of monitoring data collection, resulting in a lack of comprehensive and accurate monitoring data. Third, the sensor communication transmission mechanism is simplistic. When a sensor communication failure occurs, the fault information cannot be obtained promptly and effectively resolved, compromising the reliable transmission of sensor data.

[0004] Furthermore, obtaining the status information of the foundation pit structure by only processing and analyzing data from a single type of sensor cannot guarantee the accuracy of foundation pit structure monitoring.

[0005] Therefore, how to design a distributed monitoring and early warning method for foundation pit structures throughout their entire life cycle, so as to better understand the state and changes of foundation pit structures, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides a distributed monitoring and early warning method for foundation pit structures throughout their entire life cycle, which can better understand the state and changes of foundation pit structures and issue early warning information in a timely manner.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] In a first aspect, the present invention provides a distributed monitoring and early warning method for foundation pit structures throughout their entire lifecycle, comprising:

[0009] Step 1: After the foundation pit is constructed, a distributed foundation pit structure data sensor network is built to collect real-time data of the foundation pit structure; the distributed foundation pit structure data sensor network includes groundwater level sensors, support axial force sensors and deep horizontal displacement sensors;

[0010] Step 2: Equip all sensor installation points in the foundation pit structure data sensor network with sensor communication modules to establish a sensor communication transmission mechanism; the sensor communication transmission mechanism includes direct communication and indirect communication;

[0011] Step 3: Based on the data sensor network and sensor communication transmission mechanism of the grid-like foundation pit structure, the integrated computing service unit analyzes and processes the real-time data of the foundation pit structure to obtain the classification monitoring and overall monitoring results of the foundation pit structure, and issues corresponding early warning information.

[0012] Preferably, in step one, constructing a distributed foundation pit structure data sensor network includes:

[0013] The data sensors for the foundation pit structure are arranged in a grid pattern, with the data sensors located at grid points. The grid lines are arranged along the load-bearing columns and walls of the foundation pit structure, and the grid can cover the entire foundation pit structure.

[0014] Preferably, in step two, establishing a sensor communication transmission mechanism includes:

[0015] Direct communication: All sensor communication modules establish a connection with the integrated computing service unit and transmit data;

[0016] Indirect communication: When communication between the sensor communication module and the integrated computing service unit is blocked, the blocked sensor communication module will select another sensor communication module with direct communication for data transmission. The sensor communication module with direct communication will then establish a connection with the integrated computing service unit and transmit data.

[0017] Preferably, in step three, the integrated computing service unit analyzes and processes the real-time data of the foundation pit structure to obtain the classification monitoring results of the foundation pit structure, including:

[0018] The integrated computing service unit classifies and summarizes the real-time data of the foundation pit structure, including: groundwater level, deep horizontal displacement and support axial force data in the foundation pit;

[0019] The real-time data of the foundation pit structure after classification and summarization are compared with the corresponding preset foundation pit structure safety standard data. When the value of a certain real-time data of the foundation pit structure reaches or exceeds the warning standard value, an early warning information is issued.

[0020] Preferably, the warning information includes: the location of the sensor exceeding the warning standard value, the data type collected by the sensor, the specific value exceeding the warning value, and corresponding adjustment measures.

[0021] Preferably, in step three, the integrated computing service unit analyzes and processes the real-time data of the foundation pit structure to obtain the overall monitoring results of the foundation pit structure, including:

[0022] The safety factor of the foundation pit structure is derived from the data of groundwater level, deep horizontal displacement, and support axial force in the foundation pit structure. The calculation formula is as follows:

[0023]

[0024] Where, N S N represents the number of groundwater level sensors. F To support the number of axial force sensors, N W r represents the number of deep horizontal displacement sensors. s r is the normalized value of the groundwater level. F To support the normalized value of the axial force, r w The values ​​are normalized values ​​from the deep horizontal displacement sensor.

[0025] Groundwater level normalization formula:

[0026]

[0027] Where s is the groundwater level sensor data at that moment;

[0028] Normalized formula for support axial force:

[0029]

[0030] Where F is the supporting axial force, ZL1 is the data obtained from the measurement of the first enclosure, and ZL2 is the data obtained from the measurement of the second enclosure;

[0031] Normalized formula for deep horizontal displacement:

[0032]

[0033] Where w represents the data from the deep horizontal displacement sensor;

[0034] Based on a pre-defined standard for classifying the safety factor of a building foundation pit, the safety factor level of the foundation pit is determined, and an early warning message is issued.

[0035] Preferably, the integrated computing service unit adjusts the sampling time interval of the distributed foundation pit structure data sensor network based on the stage of foundation pit structure construction and the circumstances causing a decrease in the stability of the foundation pit structure.

[0036] Secondly, the present invention provides a distributed monitoring and early warning system for the entire life cycle foundation pit structure, used to implement the above-mentioned distributed monitoring and early warning method for the entire life cycle foundation pit structure.

[0037] As can be seen from the above technical solutions, compared with the prior art, the technical solutions of the present invention have the following advantages:

[0038] Beneficial effects:

[0039] This technical solution provides more comprehensive and accurate data. Employing both direct and indirect communication mechanisms ensures timely and accurate transmission of sensor data, reducing data transmission latency and the possibility of errors. Furthermore, acquiring multiple monitoring results allows for a better understanding of the foundation pit structure's condition and changes, enabling timely issuance of early warning information. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0041] Figure 1 The flowchart of the distributed monitoring and early warning method for the entire life cycle foundation pit structure provided by the present invention is shown below.

[0042] Figure 2 This is a diagram of the distributed foundation pit structure data sensor network structure provided by the present invention;

[0043] Figure 3 The diagram shows the structure of the distributed monitoring and early warning system for the entire life cycle foundation pit structure provided by this invention. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1;

[0046] like Figure 1 As shown, this embodiment provides a distributed monitoring and early warning method for foundation pit structures throughout their entire lifecycle, including:

[0047] Step 1: After the foundation pit is constructed, a distributed foundation pit structure data sensor network is built to collect real-time data of the foundation pit structure; the distributed foundation pit structure data sensor network includes groundwater level sensors, support axial force sensors and deep horizontal displacement sensors;

[0048] Step 2: Equip all sensor installation points in the foundation pit structure data sensor network with sensor communication modules to establish a sensor communication transmission mechanism; the sensor communication transmission mechanism includes direct communication and indirect communication;

[0049] Step 3: Based on the data sensor network and sensor communication transmission mechanism of the grid-like foundation pit structure, the integrated computing service unit analyzes and processes the real-time data of the foundation pit structure to obtain the classification monitoring and overall monitoring results of the foundation pit structure, and issues corresponding early warning information.

[0050] This technical solution provides more comprehensive and accurate data. Employing both direct and indirect communication mechanisms ensures timely and accurate transmission of sensor data, reducing data transmission latency and the possibility of errors. Furthermore, acquiring multiple monitoring results allows for a better understanding of the foundation pit structure's condition and changes, enabling timely issuance of early warning information.

[0051] The following provides a further detailed explanation of each of the above steps:

[0052] In step one, as Figure 2 As shown, a distributed foundation pit structure data sensor network is constructed, including:

[0053] The data sensors for the foundation pit structure are arranged in a grid pattern, with the data sensors located at grid points. The grid lines are arranged along the load-bearing columns and walls of the foundation pit structure, and the grid can cover the entire foundation pit structure.

[0054] In this embodiment, the entire distributed sensor monitoring grid should be slightly larger than the overall building structure, with its length and width dimensions being 110% of the length and width dimensions of the foundation pit building.

[0055] In step two, a sensor communication transmission mechanism is established, including:

[0056] Direct communication: All sensor communication modules establish a connection with the integrated computing service unit and transmit data;

[0057] Indirect communication: When communication between the sensor communication module and the integrated computing service unit is blocked, the blocked sensor communication module will select another sensor communication module with direct communication for data transmission. The sensor communication module with direct communication will then establish a connection with the integrated computing service unit and transmit data.

[0058] In this embodiment, the indirect communication method between the sensor and the integrated computing service unit specifically includes:

[0059] The communication overhead of the sensor communication node whose communication is blocked is recorded as 0, the communication overhead with other sensor communication nodes is recorded as infinite, and all communication nodes are marked as unvisited.

[0060] Select the sensor communication node with the lowest communication cost that is closest to the sensor communication node whose communication is blocked from the unvisited sensor communication node as the current node, and mark it as visited.

[0061] For all neighboring sensor communication nodes of the current node, calculate the communication cost from the starting communication blocked node to this node (the neighboring communication node of the current node), which is the sum of the communication cost of the current node from the starting point and the communication cost between the two nodes (the current node and its neighboring sensor communication nodes). If the communication cost is less than the current communication cost of the node, update the communication cost of the node. Then repeat the above steps until all nodes have been visited or there are no nodes that can be visited.

[0062] Finally, starting from the integrated computing service unit, backtracking along the minimum cost path of each node to the starting point, until the starting point is reached, the initial sensor communication node establishes a connection with the integrated computing service unit through this optimal path.

[0063] In step three, the integrated computing service unit analyzes and processes the real-time data of the foundation pit structure to obtain the classification monitoring results of the foundation pit structure, including:

[0064] The integrated computing service unit classifies and summarizes the real-time data of the foundation pit structure, including: groundwater level, deep horizontal displacement and support axial force data in the foundation pit;

[0065] The real-time data of the foundation pit structure after classification and summarization are compared with the corresponding preset foundation pit structure safety standard data. When the value of a certain real-time data of the foundation pit structure reaches or exceeds the warning standard value, an early warning information is issued.

[0066] The warning information includes: the location of the sensor that exceeds the warning standard value, the data type collected by the sensor, the specific value exceeding the warning value, and the corresponding adjustment measures.

[0067] The integrated computing service unit analyzes and processes the real-time data of the foundation pit structure to obtain the overall monitoring results of the foundation pit structure, including:

[0068] The safety factor of the foundation pit structure is derived from the data of groundwater level, deep horizontal displacement, and support axial force in the foundation pit structure. The calculation formula is as follows:

[0069]

[0070] Where, N SN represents the number of groundwater level sensors. F To support the number of axial force sensors, N W r represents the number of deep horizontal displacement sensors. s r is the normalized value of the groundwater level. F To support the normalized value of the axial force, r w The values ​​are normalized values ​​from the deep horizontal displacement sensor.

[0071] Groundwater level normalization formula:

[0072]

[0073] Where s is the groundwater level sensor data at that moment;

[0074] Normalized formula for support axial force:

[0075]

[0076] Where F is the supporting axial force, ZL1 is the data obtained from the measurement of the first enclosure, and ZL2 is the data obtained from the measurement of the second enclosure;

[0077] Normalized formula for deep horizontal displacement:

[0078]

[0079] Where w represents the data from the deep horizontal displacement sensor;

[0080] Based on a pre-defined standard for classifying the safety factor of a building foundation pit, the safety factor level of the foundation pit is determined, and an early warning message is issued.

[0081] The integrated computing service unit adjusts the sampling time interval of the distributed foundation pit structure data sensor network based on the stage of foundation pit structure construction and the circumstances that cause a decrease in foundation pit structure stability.

[0082] In this embodiment, during the construction period, the data transmission interval is generally maintained at once every hour; after the construction is completed and the building is put into daily use, the data transmission interval is generally maintained at once every three hours; when encountering natural disasters or other situations that may cause a decrease in building stability during the construction and use process, the data transmission interval is generally maintained at once every ten minutes.

[0083] Furthermore, after the integrated computing service unit analyzes and processes the real-time data of the foundation pit structure to obtain the classification and overall monitoring results of the foundation pit structure and issues corresponding early warning information, the sampling time interval of the distributed foundation pit structure data sensor network will be appropriately reduced. The reduction range depends on the degree to which the warning standard is exceeded; the greater the degree to which the warning standard is exceeded, the shorter the sensor sampling time period will be.

[0084] Example 2;

[0085] like Figure 3 As shown, this invention provides a distributed monitoring and early warning system for full-cycle foundation pit structures, used to implement the aforementioned distributed monitoring and early warning method for full-cycle foundation pit structures, comprising:

[0086] Data sensors for foundation pit structure, sensor communication modules, and integrated computing service units;

[0087] The foundation pit structure data sensor is used to construct a distributed foundation pit structure data sensor network to collect real-time data of the foundation pit structure.

[0088] The sensor communication module is used to establish a sensor communication transmission mechanism; the sensor communication transmission mechanism includes direct communication and indirect communication.

[0089] The integrated computing service unit is used to analyze and process the real-time data of the foundation pit structure, obtain the classification monitoring and overall monitoring results of the foundation pit structure, and issue corresponding early warning information.

[0090] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to the method section.

[0091] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A distributed monitoring and early warning method for foundation pit structures throughout their entire lifecycle, characterized in that, include: Step 1: After the foundation pit is constructed, a distributed foundation pit structure data sensor network is built to collect real-time data of the foundation pit structure; The distributed foundation pit structure data sensor network includes groundwater level sensors, support axial force sensors, and deep horizontal displacement sensors. Step 2: Equip all sensor installation points in the distributed foundation pit structure data sensor network with sensor communication modules to establish a sensor communication transmission mechanism; the sensor communication transmission mechanism includes direct communication and indirect communication; Step 3: Based on the distributed foundation pit structure data sensor network and sensor communication transmission mechanism, the integrated computing service unit analyzes and processes the real-time data of the foundation pit structure to obtain the classification monitoring and overall monitoring results of the foundation pit structure, and issues corresponding early warning information; including: The safety factor of the foundation pit structure is derived from the data of groundwater level, deep horizontal displacement, and support axial force in the foundation pit structure. The calculation formula is as follows: in, This refers to the number of groundwater level sensors. To support the number of axial force sensors, The number of deep horizontal displacement sensors. This is the normalized value of the groundwater level. To support the normalized value of the axial force, The values ​​are normalized values ​​from the deep horizontal displacement sensor. Groundwater level normalization formula: Where s is the groundwater level sensor data at the real-time data acquisition moment; Normalized formula for support axial force: Where F is the supporting axial force, ZL1 is the data obtained from the measurement of the first enclosure, and ZL2 is the data obtained from the measurement of the second enclosure; Normalized formula for deep horizontal displacement: Where w represents the data from the deep horizontal displacement sensor; Based on the pre-set safety factor grading standards for foundation pits, the safety factor level of the foundation pit is determined, and an early warning message is issued.

2. The distributed monitoring and early warning method for full-cycle foundation pit structures according to claim 1, characterized in that, In step one, constructing a distributed foundation pit structure data sensor network includes: The data sensors for the foundation pit structure are arranged in a grid pattern, with the data sensors located at grid points. The grid lines are arranged along the load-bearing columns and walls of the foundation pit structure, and the grid can cover the entire foundation pit structure.

3. The method for distributed monitoring and early warning of foundation pit structures throughout their entire lifecycle, as described in claim 1, is characterized in that... In step two, establishing a sensor communication transmission mechanism includes: Direct communication: All sensor communication modules establish a connection with the integrated computing service unit and transmit data; Indirect communication: When communication between a sensor communication module and the integrated computing service unit is blocked, the blocked sensor communication module will select other sensor communication modules that communicate directly to transmit data. The other sensor communication modules that communicate directly will then establish a connection with the integrated computing service unit and transmit data.

4. The distributed monitoring and early warning method for full-cycle foundation pit structures according to claim 1, characterized in that, In step three, the integrated computing service unit analyzes and processes the real-time data of the foundation pit structure to obtain the classification monitoring results of the foundation pit structure, including: The integrated computing service unit classifies and summarizes the real-time data of the foundation pit structure, including: groundwater level, deep horizontal displacement and support axial force data in the foundation pit; The real-time data of the foundation pit structure after classification and summarization are compared with the corresponding preset foundation pit structure safety standard data. When the value of a certain real-time data of the foundation pit structure reaches or exceeds the warning standard value, an early warning information is issued.

5. The distributed monitoring and early warning method for full-cycle foundation pit structures according to claim 4, characterized in that, The warning information includes: the location of the sensor that exceeds the warning standard value, the data type collected by the sensor, the specific value exceeding the warning value, and the corresponding adjustment measures.

6. The distributed monitoring and early warning method for full-cycle foundation pit structures according to claim 1, characterized in that, The integrated computing service unit adjusts the sampling time interval of the distributed foundation pit structure data sensor network based on the stage of foundation pit structure construction and the circumstances that cause a decrease in the stability of the foundation pit structure.

7. A distributed monitoring and early warning system for full-cycle foundation pit structures, used to implement the distributed monitoring and early warning method for full-cycle foundation pit structures as described in any one of claims 1-6.

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