An early warning system for the deformation risk of the diaphragm wall of an integrated utility tunnel

Abstract

The present invention discloses a deformation risk early warning system for the diaphragm wall of an integrated utility tunnel. The present invention relates to the technical field of diaphragm walls and includes a data acquisition module, a data analysis module, a risk early warning module, an external environment monitoring module, and a real-time monitoring module. The data analysis module is used to analyze the diaphragm wall data collected by the data acquisition module. The data analysis module includes a deformation prediction unit, a soil stress detection unit, and a deformation comprehensive evaluation unit. It is capable of predicting the deformation rate through the deformation prediction unit, and combining the soil pressure and the internal stress of the wall through the soil stress detection unit to conduct a quantitative analysis of the mechanical properties of the diaphragm wall, enabling the quantification of the interaction between the soil and the underground structure. Finally, a comprehensive evaluation is carried out through the deformation comprehensive evaluation unit, and different risk levels are set for the results to achieve the early warning effect, improve the quality of deformation risk early warning, and reduce the potential safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of diaphragm walls, and particularly to a deformation risk early warning system for the diaphragm wall of an integrated utility tunnel. Background Art

[0002] An urban integrated utility tunnel refers to a tunnel space built underground in a city, integrating various engineering pipelines such as electricity, communication, heating, and water supply. The above-ground attachments are facilities such as access ports and ventilation ports. The diaphragm wall is a foundation project that uses a grooving machine on the ground to excavate a long and narrow deep groove. After cleaning the groove, a steel reinforcement cage is hoisted into the groove, and then underwater concrete is poured by the reverse pouring method to form a unit groove section. In this way, it is carried out section by section to build a continuous reinforced concrete wall underground as a water cutoff, anti-seepage, load-bearing, and water retaining structure. The diaphragm wall is the most widely used form of foundation pit retaining structure, and monitoring the deformation of the diaphragm wall has also become an important part of foundation pit monitoring.

[0003] In actual construction, the measured value of the horizontal displacement of the diaphragm wall sometimes exceeds the design limit. It is difficult to accurately quantify the interaction between the soil and the underground structure, making the prediction of the deformation trend of the underground structure inaccurate. As a result, the assessment of the safety state of the diaphragm wall mostly relies on the construction experience of engineering technicians, lacking quantitative analysis of mechanical properties, reducing the quality of deformation risk early warning, and increasing potential safety hazards. Summary of the Invention

[0004] The purpose of the present invention is to provide a deformation risk early warning system for the diaphragm wall of an integrated utility tunnel, which solves the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A deformation risk early warning system for the diaphragm wall of an integrated utility tunnel, including a data acquisition module, a data analysis module, a risk early warning module, an external environment monitoring module, and a real-time monitoring module;

[0006] The data analysis module is used to analyze the diaphragm wall data collected by the data acquisition module and predict the risk situation of the diaphragm wall. The data analysis module includes a deformation prediction unit, a soil stress detection unit, and a deformation comprehensive evaluation unit;

[0007] The deformation prediction unit is used to analyze the diaphragm wall data to obtain the deformation rate V at time t + 1 t+1 , the soil stress detection unit obtains the diaphragm wall stress index S by combining the soil pressure and the internal stress of the wall, indicating the influence degree of the soil pressure on the wall. The deformation comprehensive evaluation unit is used to comprehensively evaluate the deformation risk of the diaphragm wall by combining the deformation prediction unit and the soil stress detection unit to obtain the comprehensive evaluation value R at time t + 1 t+1 , and according to the comprehensive evaluation value Rt+1 Set different risk levels to achieve the early warning effect;

[0008] The risk early warning module is used to send early warning information to on-site construction personnel and back-office management personnel according to the risk level.

[0009] Optionally, the external environment monitoring module obtains temperature, precipitation, and wind speed data through a weather forecast interface and obtains real-time vibration data through a seismic monitoring network.

[0010] Optionally, the deformation prediction unit predicts as follows:

[0011]

[0012] Where V t+1 is the deformation rate at time t+1;

[0013] V t is the deformation rate at the current time;

[0014] V t－1 is the deformation rate at time t−1;

[0015] α is the deformation rate influence coefficient, with a value of 0.7;

[0016] H t is the groundwater level at the current time, and H0 is the initial water level;

[0017] H t－1 is the groundwater level H at time t−1;

[0018] β is the groundwater level influence coefficient, with a value range of 0 to 1;

[0019] Specifically:

[0020] Where X t is the current wall displacement;

[0021] X t-1 is the wall displacement at time t−1;

[0022] Δt is the time interval;

[0023] By combining the historical deformation rate and the change in groundwater level, the deformation rate of the diaphragm wall in the future time is predicted.

[0024] Optionally, the soil stress detection unit calculates as follows:

[0025]

[0026] Where S t is the current diaphragm wall stress index;

[0027] P soil is the soil pressure;

[0028] A con is the contact area between the soil and the diaphragm wall;

[0029] P wall is the internal stress of the diaphragm wall;

[0030] A wall is the acting area of the internal stress of the diaphragm wall;

[0031] C wall is the bearing capacity of the diaphragm wall;

[0032] The stress index S of the diaphragm wall is used to quantify the interaction between the soil pressure and the internal stress of the diaphragm wall. When the stress index S of the diaphragm wall is high, it indicates that the interaction between the soil pressure and the internal stress of the diaphragm wall is strong, and the risk of wall deformation and failure increases.

[0033] Optionally, the deformation comprehensive evaluation unit evaluates as follows:

[0034]

[0035] where R t+1 is the comprehensive evaluation value at time t + 1, and R is the comprehensive evaluation value;

[0036] V t+1 is the deformation rate at time t + 1;

[0037] V limit is the maximum deformation rate;

[0038] W1 is the deformation rate weight, with a value of 0.4;

[0039] D is the deformation fluctuation value;

[0040] W2 is the deformation fluctuation weight, with a value of 0.3;

[0041] S t is the current stress index of the diaphragm wall;

[0042] S limit is the maximum stress of the diaphragm wall;

[0043] W3 is the stress weight of the diaphragm wall, with a value of 0.3;

[0044] Specifically:

[0045] where V i is the deformation rate at the i-th time point;

[0046] V avg is the average value of deformation rate at all time points;

[0047] N is the number of time points;

[0048] The deformation fluctuation value D indicates the fluctuation of the deformation rate of the underground continuous wall. The larger the deformation fluctuation value D is, the more drastic the deformation rate change is and the more unstable the deformation trend is. The comprehensive assessment value R indicates the current deformation risk of the underground continuous wall, and the risk level is set according to the comprehensive assessment value R, specifically:

[0049] When 0<R≤0.3, it is low risk;

[0050] When 0.3<R≤0.5, it is medium-low risk;

[0051] When 0.5<R≤0.7, it is medium risk;

[0052] When R>0.7, it is high risk;

[0053] By setting a risk level for the comprehensive assessment value R, timely response measures can be taken according to the predicted results of the underground continuous wall deformation risk.

[0054] Optionally, when 0.5<R≤0.7, it indicates that the underground continuous wall deformation risk warning system is at a higher risk level. At this time, the deformation rate of the wall is large and may accelerate. At this time, the deformation rate influence coefficient α in the deformation prediction unit is adjusted to respond to the underground continuous wall deformation risk more accurately and timely, specifically:

[0055] When 0.5<R≤0.7, by increasing the deformation rate influence coefficient α, it can be adjusted in real time according to the prediction results of the current underground continuous wall deformation risk.

[0056] Optionally, the risk warning module is used to send warning information to on-site construction personnel and back-end management personnel according to the set risk level. The on-site construction personnel can set up warning lights on site to provide reminders, and set different colors for the warning lights to correspond to different risk levels, so that the on-site construction personnel can quickly understand the current risk warning situation. At the same time, text messages are sent to the back-end management personnel's terminal devices according to different risk levels.

[0057] Optionally, the real-time monitoring module is used to visualize the data collected by the data acquisition module and the results of the data analysis module, and use a display device to display them in real time, and combine with video monitoring equipment to provide a real-time video stream of the on-site construction area.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] 1. The present invention analyzes the diaphragm wall data through a deformation prediction unit by combining the historical deformation rate and the change in the groundwater level to obtain the deformation rate V at time t+1 t+1 , thereby realizing the quantification of the future deformation rate of the diaphragm wall. Then, through the soil stress detection unit, by combining the soil pressure and the internal stress of the wall, the stress index S of the diaphragm wall is obtained, and the mechanical properties of the diaphragm wall are quantitatively analyzed, enabling the interaction between the soil and the underground structure to be quantified, improving the accuracy of predicting the deformation trend of the underground structure. Finally, through the deformation comprehensive evaluation unit, it is used to combine the deformation rate V at time t+1 t+1 , the stress index S of the diaphragm wall and other influencing factors to comprehensively evaluate the deformation risk of the diaphragm wall, and obtain the comprehensive evaluation value R at time t+1 t+1 , and by setting different risk levels for the comprehensive evaluation value R t+1 , corresponding measures are implemented according to different risk levels to achieve the early warning effect, avoid relying solely on the construction experience of engineering technicians, improve the quality of deformation risk early warning, and reduce potential safety hazards.

[0060] 2. When the comprehensive evaluation value R is at the medium risk level, the present invention increases the deformation rate influence coefficient α, enabling it to be adjusted in real time according to the prediction result of the current deformation risk of the diaphragm wall, improving the response sensitivity to the deformation of the diaphragm wall, being able to capture the sharp change in the deformation rate in a timely manner, and providing a more timely and effective early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 is the system module block diagram of the present invention;

[0062] Figure 2 is the data analysis module block diagram of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0064] In actual construction, the measured horizontal displacement value of the diaphragm wall sometimes exceeds the design limit, and it is difficult to accurately quantify the interaction between the soil and the underground structure, resulting in inaccurate prediction of the deformation trend of the underground structure, so that the assessment of the safety status of the diaphragm wall mostly relies on the construction experience of engineering technicians, lacking quantitative analysis of mechanical properties, reducing the quality of deformation risk early warning, and increasing potential safety hazards.

[0065] Example 1. Please refer to Figure 1 and Figure 2 . This embodiment provides a deformation risk early warning system for the diaphragm wall of an integrated pipe gallery, including a data acquisition module, a data analysis module, a risk early warning module, an external environment monitoring module, and a real-time monitoring module;

[0066] The data analysis module is used to analyze the diaphragm wall data collected by the data acquisition module and predict the risk situation of the diaphragm wall. The data analysis module includes a deformation prediction unit, a soil stress detection unit, and a deformation comprehensive evaluation unit;

[0067] The deformation prediction unit is used to analyze the diaphragm wall data to obtain the deformation rate V at time t + 1 t+1 . The soil stress detection unit combines the soil pressure and the internal stress of the wall to obtain the stress index S of the diaphragm wall, indicating the influence degree of the soil pressure on the wall. The deformation comprehensive evaluation unit is used to comprehensively evaluate the deformation risk of the diaphragm wall by combining the deformation prediction unit and the soil stress detection unit to obtain the comprehensive evaluation value R at time t + 1 t+1 , and different risk levels are set according to the comprehensive evaluation value R t+1 to achieve the early warning effect;

[0068] The risk early warning module is used to send early warning information to on-site construction personnel and back-end management personnel according to the risk level.

[0069] In this embodiment, the data acquisition module uses sensor devices to collect the diaphragm wall data of the integrated pipe gallery in real time, and the deformation prediction unit analyzes the diaphragm wall data to obtain the deformation rate V at time t + 1 t+1 , so as to quantify the deformation rate of the future diaphragm wall, which is convenient for construction technicians to predict the deformation of the diaphragm wall. Then, the soil stress detection unit combines the soil pressure and the internal stress of the wall to obtain the stress index S of the diaphragm wall. By quantitatively analyzing the mechanical properties of the diaphragm wall, the interaction between the soil and the underground structure can be quantified, improving the accuracy of predicting the deformation trend of the underground structure. Finally, the deformation comprehensive evaluation unit is used to combine the deformation rate V at time t + 1 t+1 , the stress index S of the diaphragm wall, and other influencing factors to comprehensively evaluate the deformation risk of the diaphragm wall to obtain the comprehensive evaluation value R at time t + 1 t+1 , and different risk levels are set according to the comprehensive evaluation value R t+1 , and corresponding measures are implemented according to different risk levels to achieve the early warning effect, thereby avoiding relying solely on the construction experience of engineering technicians, improving the quality of deformation risk early warning, and reducing potential safety hazards.

[0070] Further, the external environment monitoring module obtains temperature, precipitation, and wind speed data through the weather forecast interface and obtains real-time vibration data through the seismic monitoring network.

[0071] Specifically, since temperature changes can cause thermal expansion and contraction of materials, especially common building materials such as metals, concrete, and steel, if the temperature changes drastically, it may cause the building to shrink or expand, affecting the deformation rate of the wall. Too much or too little precipitation will change the humidity and structure of the soil, resulting in soil settlement or expansion, thus affecting the foundation deformation of the building. High wind speeds may impose additional mechanical loads on the building structure and may exacerbate wall deformation. Earthquake activities may cause a sharp change in the deformation trend of the building and may even distort the original predicted trend. Therefore, in actual construction, thresholds are set for the external environment according to the situation of the diaphragm wall. When the threshold is exceeded, information is sent to the management personnel in a timely manner for timely handling to reduce the harm to the diaphragm wall.

[0072] Further, the deformation prediction unit predicts as follows:

[0073]

[0074] Where V t+1 is the deformation rate at time t + 1;

[0075] V t is the deformation rate at the current time;

[0076] V t－1 is the deformation rate at time t - 1;

[0077] α is the deformation rate influence coefficient, and its value is 0.7;

[0078] H t is the groundwater level at the current time, and H0 is the initial water level;

[0079] H t－1 is the groundwater level H at time t - 1;

[0080] β is the groundwater level influence coefficient, and its value range is from 0 to 1;

[0081] Specifically:

[0082] Where X t is the current wall displacement;

[0083] X t-1 is the wall displacement at time t - 1;

[0084] Δt is the time interval;

[0085] Specifically, by combining the historical deformation rate and the change in the groundwater level, the deformation rate of the diaphragm wall in the future time is predicted to promptly detect abnormal deformation conditions and improve the response speed of engineering safety management.

[0086] Further, the calculation process of the soil stress detection unit is as follows:

[0087]

[0088] Where S t is the current stress index of the diaphragm wall;

[0089] P soil is the soil pressure;

[0090] A con is the contact area between the soil and the diaphragm wall;

[0091] P wall is the internal stress of the diaphragm wall;

[0092] A wall is the area of action of the internal stress of the diaphragm wall;

[0093] C wall is the bearing capacity of the diaphragm wall;

[0094] Specifically, the stress index S of the diaphragm wall is used to quantify the interaction between the soil pressure and the internal stress of the diaphragm wall. When the stress index S of the diaphragm wall is relatively high, it indicates that the interaction between the soil pressure and the internal stress of the diaphragm wall is relatively strong, and the risk of deformation and damage of the wall increases. By quantitatively analyzing the mechanical properties of the diaphragm wall and quantifying the results, it is convenient for the management personnel to quickly understand the current stress situation of the diaphragm wall, provides a basis for evaluating the deformation trend of the diaphragm wall, and improves the accuracy of predicting the deformation trend of the diaphragm wall.

[0095] Further, the evaluation process of the deformation comprehensive evaluation unit is as follows:

[0096]

[0097] Where R t+1 is the comprehensive evaluation value at time t + 1, and R is the comprehensive evaluation value;

[0098] V t+1 is the deformation rate at time t + 1;

[0099] V limit is the maximum deformation rate;

[0100] W1 is the deformation rate weight, with a value of 0.4;

[0101] D is the deformation fluctuation value;

[0102] W2 is the deformation fluctuation weight, which is 0.3;

[0103] S t is the current underground continuous wall stress index;

[0104] S limit is the maximum underground diaphragm wall stress;

[0105] W3 is the stress weight of underground continuous wall, which is 0.3;

[0106] Specific:

[0107] Where V i is the deformation rate at the i-th time point;

[0108] V avg is the average value of deformation rate at all time points;

[0109] N is the number of time points;

[0110] The deformation fluctuation value D indicates the fluctuation of the deformation rate of the underground continuous wall. The larger the deformation fluctuation value D is, the more drastic the deformation rate change is and the more unstable the deformation trend is. The comprehensive assessment value R indicates the current deformation risk of the underground continuous wall, and the risk level is set according to the comprehensive assessment value R, specifically:

[0111] When 0<R≤0.3, it is low risk;

[0112] Countermeasures: Maintain regular inspection and maintenance to ensure that construction activities do not have adverse effects on the wall and avoid external factors aggravating deformation;

[0113] When 0.3<R≤0.5, it is medium-low risk;

[0114] Countermeasures include increasing the monitoring time interval, reducing the intensity and speed of construction activities, and avoiding further disturbance of the wall by transient loads;

[0115] When 0.5<R≤0.7, it is medium risk;

[0116] Countermeasures: Add monitoring sensors to collect data in real time, especially the deformation rate of the wall and soil pressure, and handle abnormal data in a timely manner; locally reinforce the wall to enhance its stability;

[0117] When R>0.7, it is high risk;

[0118] Countermeasures: notify on-site staff to take emergency reinforcement measures, including temporary support, steel reinforcement, grouting, etc., stop all construction activities except emergency reinforcement measures, organize the evacuation of relevant personnel, and monitor the wall deformation in real time.

[0119] Specifically, by setting risk levels for the comprehensive evaluation value R, corresponding measures can be taken in a timely manner according to the prediction results of the deformation risk of the diaphragm wall, avoiding the expansion of damage.

[0120] Specifically, the deformation comprehensive evaluation unit is used to comprehensively evaluate the deformation risk of the diaphragm wall by combining the deformation rate V at time t+1 t+1 , the stress index S of the diaphragm wall, and the deformation fluctuation value D, and obtain the quantified comprehensive evaluation value R at time t+1 t+1 , and by setting different risk levels for the comprehensive evaluation value R t+1 , corresponding measures are implemented according to different risk levels to achieve the warning effect. Analyzing from actual data can avoid relying solely on the construction experience of engineering technicians, improve the quality of deformation risk warning, and reduce potential safety hazards.

[0121] Furthermore, when 0.5 < R ≤ 0.7, it indicates that the deformation risk warning system of the diaphragm wall is at a relatively high risk level. At this time, the deformation rate of the wall is relatively large and may accelerate. At this time, the influence coefficient α of the deformation rate in the deformation prediction unit is adjusted to more accurately and timely respond to the deformation risk of the diaphragm wall. Specifically:

[0122] When 0.5 < R ≤ 0.7, by increasing the influence coefficient α of the deformation rate, it can be adjusted in real time according to the prediction results of the current deformation risk of the diaphragm wall, improving the response sensitivity to the deformation of the diaphragm wall, being able to capture the sharp changes in the deformation rate in a timely manner, and providing a more timely and effective warning.

[0123] Furthermore, the risk warning module is used to send warning messages to on-site construction personnel and back-end management personnel according to the set risk levels. The on-site construction personnel set warning lights on-site for reminder, and different colors are set for the warning lights to correspond to different risk levels, enabling the on-site construction personnel to quickly understand the current risk warning situation. At the same time, text messages are sent to the terminal devices of the back-end management personnel according to different risk levels.

[0124] Specifically, the intuitive transmission of colors simplifies the information transmission process. Especially in the case of high noise on the construction site, the on-site construction personnel can intuitively understand the current risk level through the color change of the warning lights, quickly judge the safety status on-site, and take corresponding measures according to the situation to avoid the expansion of disasters and reduce casualties.

[0125] Furthermore, the real-time monitoring module is used to visually process the data collected by the data acquisition module and the results of the data analysis module, and display them in real time using a display device. In combination with a video monitoring device, a real-time video stream of the on-site construction area is provided.

[0126] Specifically, by visually processing the data collected by the data acquisition module and the results of the data analysis module, such as using a line chart, managers can more intuitively understand the deformation of the diaphragm wall, so that managers can take timely countermeasures.

[0127] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deformation risk early warning system for underground continuous walls of a comprehensive pipe gallery, characterized in that: It includes data collection module, data analysis module, risk warning module, external environment monitoring module and real-time monitoring module; The data analysis module is used to analyze the continuous wall data collected by the data acquisition module to predict the risk of the underground continuous wall. The data analysis module includes a deformation prediction unit, a soil stress detection unit and a deformation comprehensive evaluation unit; The deformation prediction unit is used to analyze the continuous wall data to obtain the deformation rate V at time t+1 t+1 The soil stress detection unit combines the soil pressure and the internal stress of the wall to obtain the underground continuous wall stress index S, which indicates the influence of the soil pressure on the wall. The deformation comprehensive evaluation unit is used to combine the deformation prediction unit and the soil stress detection unit to comprehensively evaluate the deformation risk of the underground continuous wall and obtain the comprehensive evaluation value R at time t+1. t+1 , and according to the comprehensive evaluation value R t+1 Set different risk levels to achieve early warning effects; The risk warning module is used to send warning information to on-site construction personnel and back-end management personnel according to the risk level; the external environment monitoring module obtains temperature, precipitation, and wind speed data through the weather forecast interface, and obtains real-time vibration data through the earthquake monitoring network; The prediction process of the deformation prediction unit is as follows: ; where V t+1 is the deformation rate at time t+1; V t is the deformation rate at the current time; V t－1 is the deformation rate at time t-1; α is the deformation rate influence coefficient, which is 0.7; H t is the groundwater level at the current time, H0 is the initial water level; H t－1 is the groundwater level H at time t-1; β is the groundwater level influence coefficient, ranging from 0 to 1; Specific: ; where X t is the current wall displacement; X t-1 is the wall displacement at time t-1; Δt is the time interval; By combining the historical deformation rate and groundwater level changes, the deformation rate of the underground continuous wall in the future is predicted; The calculation process of the soil stress detection unit is as follows: ; where S t is the current underground continuous wall stress index; P soil is soil pressure; A con is the contact area between soil and underground continuous wall; P wall is the internal stress of the underground continuous wall; A wall is the stress action area inside the underground continuous wall; C wall is the bearing capacity of underground continuous wall; The underground continuous wall stress index S is used to quantify the interaction between soil pressure and the internal stress of the underground continuous wall. When the underground continuous wall stress index S is high, it means that the interaction between soil pressure and the internal stress of the underground continuous wall is strong, and the risk of wall deformation and damage increases; The evaluation process of the deformation comprehensive evaluation unit is as follows: ; where R t+1 is the comprehensive evaluation value at time t+1, and R is the comprehensive evaluation value; V t+1 is the deformation rate at time t+1; V limit is the maximum deformation rate; W1 is the deformation rate weight, which is 0.4; D is the deformation fluctuation value; W2 is the deformation fluctuation weight, which is 0.3; S t is the current underground continuous wall stress index; S limit is the maximum diaphragm wall stress index; W3 is the stress weight of underground continuous wall, which is 0.3; Specific: ; where V i is the deformation rate at the i-th time point; V avg is the average value of deformation rate at all time points; N is the number of time points; The deformation fluctuation value D indicates the fluctuation of the deformation rate of the underground continuous wall. The larger the deformation fluctuation value D is, the more drastic the deformation rate change is and the more unstable the deformation trend is. The comprehensive assessment value R indicates the current deformation risk of the underground continuous wall, and the risk level is set according to the comprehensive assessment value R, specifically: When 0<R≤0.3, it is low risk; When 0.3<R≤0.5, it is medium-low risk; When 0.5<R≤0.7, it is medium risk; When R>0.7, it is high risk; By setting a risk level for the comprehensive assessment value R, timely response measures can be taken according to the predicted results of the underground continuous wall deformation risk.

2. The deformation risk early warning system for underground continuous wall of comprehensive pipe gallery according to claim 1 is characterized by: When 0.5<R≤0.7, it means that the underground continuous wall deformation risk warning system is at a high risk level. At this time, the deformation rate of the wall is large and may accelerate. At this time, the deformation rate influence coefficient α in the deformation prediction unit is adjusted to respond to the underground continuous wall deformation risk more accurately and timely. Specifically: ; When 0.5<R≤0.7, by increasing the deformation rate influence coefficient α, it can be adjusted in real time according to the prediction results of the current underground continuous wall deformation risk.

3. The deformation risk early warning system for underground continuous wall of comprehensive pipe gallery according to claim 2 is characterized by: The risk warning module is used to send warning information to on-site construction personnel and back-end management personnel according to the set risk level. On-site construction personnel set up warning lights on site to provide reminders, and set different colors for the warning lights to correspond to different risk levels, so that on-site construction personnel can quickly understand the current risk warning situation. At the same time, text messages are sent to the back-end management personnel's terminal devices according to different risk levels.

4. The deformation risk early warning system for underground continuous wall of comprehensive pipe gallery according to claim 1 is characterized by: The real-time monitoring module is used to visualize the data collected by the data acquisition module and the results of the data analysis module, and use a display device to display them in real time, and combine with video monitoring equipment to provide a real-time video stream of the on-site construction area.

Images