Closed-loop monitoring system and monitoring method for whole process of pile foundation construction

Abstract

The invention relates to a pile foundation construction whole process closed-loop monitoring system and monitoring method, and the monitoring system comprises a sensing layer which is used for collecting construction information during pile foundation construction and is installed on a pile machine; the terminal layer is used for receiving the construction information acquired by the sensing layer and preprocessing the construction information, and the terminal layer is connected to the sensing layer; the platform layer is used for receiving the construction information preprocessed by the terminal layer, analyzing the construction information to obtain a corresponding construction instruction and feeding back the construction instruction to a constructor so that the constructor can control a pile machine according to the construction instruction, and the platform layer is connected to the terminal layer. Through cooperation of the sensing layer, the terminal layer and the platform layer, data during construction can be obtained in real time, the obtained data are analyzed, feedback is conducted to constructors in real time, and pile foundation construction is guided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, in particular to a pile foundation construction whole-process closed-loop monitoring system and a monitoring method. BACKGROUND

[0002] In pile foundation construction, the traditional construction quality control method mainly depends on the technical level and experience of construction personnel, combined with part of manual measurement and post-record. This method has strong subjectivity, incomplete data record, poor real-time performance, and cannot trace back to the whole process. SUMMARY

[0003] The pile foundation construction whole-process closed-loop monitoring system and the monitoring method can obtain the data in real time during construction, analyze the obtained data, and feed back to the construction personnel in real time to guide the pile foundation construction, by monitoring the real-time data during pile foundation construction through the sensing layer, pre-processing the real-time data through the terminal layer, and issuing corresponding construction instructions according to the implementation data during construction through the platform layer.

[0004] The pile foundation construction whole-process closed-loop monitoring system comprises: a sensing layer for collecting construction information during pile foundation construction, the sensing layer being installed on a pile machine; a terminal layer for receiving the construction information obtained by the sensing layer and pre-processing the construction information, the terminal layer being connected to the sensing layer; and a platform layer for receiving the construction information pre-processed by the terminal layer, analyzing the construction information to obtain corresponding construction instructions, and feeding back the construction instructions to construction personnel for the construction personnel to control the pile machine according to the construction instructions, the platform layer being connected to the terminal layer.

[0005] The further improvement of the present application is that the sensing layer comprises a depth detection sensor for detecting the drilling depth and the pile bottom elevation, and the depth detection sensor is installed at the winch of the pile machine.

[0006] The further improvement of the present application is that the terminal layer comprises a display, and the platform layer sends the feedback of the construction instructions to the terminal layer and displays through the display.

[0007] The further improvement of the present application is that the sensing layer further comprises a flow monitoring sensor for detecting the grouting amount of slurry.

[0008] The further improvement of the present application is that the sensing layer comprises a current monitoring sensor for monitoring the drilling motor current to monitor the change of the shear strength of the stratum.

[0009] The further improvement of the present application is that the sensor comprises a dual-axis angle monitoring sensor for monitoring the perpendicularity of the drill bit in the pile foundation process.

[0010] The further improvement of the present application is that the platform layer comprises a graphic report module for integrating the construction information into a graphic report and feeding back to the construction personnel.

[0011] The monitoring method of the pile foundation construction whole-process closed-loop monitoring system comprises the following steps: S1, collecting construction information during pile foundation construction through the sensing layer; S2, transmitting the construction information to the terminal layer, and pre-processing the construction information by the terminal layer; S3, transmitting the pre-processed construction information to the platform layer, analyzing the construction information by the platform layer to obtain corresponding construction instructions, and feeding back the obtained construction instructions to the construction personnel, and the construction personnel operates the pile machine according to the construction instructions.

[0012] The further improvement of the present application is that the sensing layer comprises a current monitoring sensor, and the platform layer specifically comprises the following steps when analyzing the construction information and issuing construction instructions: S31, in the drilling stage, the current monitoring sensor detects the drilling motor current in real time, and the platform layer is pre-set with a current threshold value, when the value of the drilling motor current received by the platform layer meets the current threshold value, the platform layer issues a final hole instruction to the construction personnel.

[0013] The further improvement of the present application is that the sensing layer comprises a flow monitoring sensor, and the platform layer specifically comprises the following steps when analyzing the construction information and issuing construction instructions: S32, in the pouring stage, the flow monitoring sensor detects the flow information of the pouring slurry in real time, and the platform layer calculates the real-time filling coefficient of the pouring pile according to the ratio of the flow information of the pouring slurry to the designed pouring amount, and when the real-time filling coefficient is abnormal, the platform layer issues an alarm information to the construction personnel.

[0014] The pile foundation construction whole-process closed-loop monitoring system and monitoring method can obtain the data during construction in real time, analyze the obtained data, and feed back to the construction personnel in real time to guide the pile foundation construction. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The figure is a system overall architecture diagram of the present application; Figure 2 The figure is a pile foundation construction flow chart of the present application DETAILED DESCRIPTION

[0016] As Figure 1、 Figure 2 As shown in the drawings, the pile foundation construction whole-process closed-loop monitoring system of the present application comprises: a sensing layer for collecting construction information during pile foundation construction, which is installed on a pile machine; a terminal layer for receiving the construction information obtained by the sensing layer and pre-processing the construction information, which is connected to the sensing layer; a platform layer for accepting the construction information pre-processed by the terminal layer, analyzing the construction information to obtain corresponding construction instructions, and feeding back the construction instructions to construction personnel for the construction personnel to control the pile machine according to the construction instructions, which is connected to the terminal layer.

[0017] Preferably, as shown in Figure 1 、 Figure 2 In the embodiment, the sensing layer comprises a depth detection sensor for detecting drilling depth and pile bottom elevation, which is installed at the winch of the pile machine; the depth detection sensor in the embodiment adopts the principle of encoder, with a measurement accuracy of ≤10 cm and a resolution of ≤5 cm, for detecting drilling depth and pile bottom elevation.

[0018] Preferably, as shown in Figure 1 、 Figure 2 The terminal layer comprises a display, and the platform layer sends the construction instructions to the terminal layer for feedback and display through the display; preferably, in the embodiment, the terminal layer is an industrial tablet computer, which is installed in the cab of the pile machine, with a hardware configuration including a quad-core 1.2 GHz processor, 2G RAM and 16G ROM, running Linux, Windows or Android operating system, and performing the following core functions: Data aggregation and preprocessing: receiving and preliminarily processing all sensor data; Real-time visualization guidance: dynamically displaying the construction instructions given by the platform layer and the relevant construction information collected by the sensors, including the deviation of design coordinates and real-time drill bit center position, real-time data and graphical inclination indication of drill pipe verticality, comparison of current drilling depth and design depth, etc.; Intelligent alarm and guidance: when any parameter is out of limit, sound and light alarm is given immediately, and graphical vector correction guidance is provided for verticality deviation; Process parameter interaction: receiving and displaying intelligent decision suggestions (such as final hole suggestion) issued by the platform for confirmation and execution by the operator.

[0019] Preferably, as shown in Figure 1 、 Figure 2 The sensing layer further comprises a flow monitoring sensor for detecting the grouting volume of slurry, with a protection level not less than IP67.

[0020] Preferably, as shown in Figure 1 ,Figure 2 As shown in the figure, the sensing layer includes a current monitoring sensor for monitoring the drilling motor current to monitor the shear strength change of the stratum, the range of the current monitoring sensor in the embodiment is 0-1200A, the accuracy level is 0.5, and the current monitoring sensor is used to monitor the drilling motor current, and the shear strength change of the stratum is reflected by the size of the current.

[0021] Preferably, as shown in Figure 1 , Figure 2 The sensing layer in the embodiment also includes a GNSS positioning sensor, the GNSS positioning sensor adopts a channel number greater than 404, can track BDS, GPS, GLONASS, and Galileo signals, and combines a strapdown inertial navigation algorithm to calculate the positioning result from an antenna phase center to a drill bit center in real time and high precision through a fixed base station or network differential technology.

[0022] Preferably, as shown in Figure 1 , Figure 2 In the embodiment, the sensing layer also includes a dual-axis angle monitoring sensor: installed on a derrick mast, a measurement range is greater than or equal to ±60°, an accuracy is 0.5%FS, a resolution is 0.01°, and the dual-axis angle monitoring sensor is used to monitor the inclination of a drill pipe in real time and calculate the perpendicularity.

[0023] Preferably, as shown in Figure 1 , Figure 2 In the embodiment, the platform layer also includes a cloud service system connected with the terminal layer in a remote mode.

[0024] As shown in Figure 1 , Figure 2 The platform layer includes an intelligent judgment module for judging the final hole opportunity of the derrick, and the intelligent judgment module is preset with a current threshold value, when the current value detected by the current detection sensor meets the current threshold value, the intelligent judgment module sends a final hole instruction to a construction personnel.

[0025] Preferably, as shown in Figure 1 The platform layer includes a graphic report module for integrating the construction information into a graphic report and feeding back to the construction personnel, for example, the graphic report module can generate a construction depth distribution graph, a construction equipment distribution graph, and the like.

[0026] Preferably, as shown in Figure 1 The platform layer includes a data tracing module for recording the construction data and corresponding construction instructions.

[0027] Preferably, in the embodiment, the tracing module can be associated with a lightweight BIM model to realize visualized and traceable management of quality data.

[0028] Preferably, as shown in Figure 1 , Figure 2As shown, in the embodiment, the platform layer further comprises a construction planning module: for setting the construction area range, construction point position data, construction depth standard, and construction spacing standard.

[0029] Preferably, in the embodiment, the platform layer further comprises a pile area and pile point management module: which supports the input of pile point horizontal and vertical spacing, designed pile length, designed pile point number, and designed pile diameter, and supports the batch import of CAD pile point coordinates.

[0030] Preferably, in the embodiment, the platform layer further comprises a statistical analysis module, which can automatically count the total number of roots, the number of meters, the construction density, and the average construction depth of each machine per day.

[0031] Preferably, the monitoring method of the pile foundation construction whole-process closed-loop monitoring system comprises the following steps: S1, collecting construction information during the pile foundation construction through the sensing layer; S2, transmitting the construction information to the terminal layer, and preprocessing the construction information by the terminal layer; S3, transmitting the preprocessed construction information to the platform layer, analyzing the construction information by the platform layer to obtain corresponding construction instructions, and feeding back the obtained construction instructions to the construction personnel, and the construction personnel operating the pile machine according to the construction instructions.

[0032] As Figure 2 shown, the sensing layer comprises a current monitoring sensor and a flow monitoring sensor, the platform layer comprises an intelligent judgment module, and the platform layer analyzes the construction information and issues construction instructions, specifically comprising the following steps: S31, in the drilling phase, the current detection sensor detects the drilling motor current in real time, and the platform layer is pre-set with a current threshold value, when the value of the drilling motor current received by the platform layer meets the current threshold value, the platform layer issues a final hole instruction to the construction personnel; S32, in the pouring phase, the flow monitoring sensor detects the flow information of the pouring slurry in real time, and the platform layer calculates the real-time filling coefficient of the pouring pile according to the ratio of the flow information of the pouring slurry to the designed pouring volume, when the real-time filling coefficient is abnormal, the platform layer issues an alarm information to the construction personnel.

[0033] Preferably, after the pouring is completed, the construction personnel clicks complete, and all data in the construction process will be archived.

[0034] In the embodiment, the determination of the current threshold value and the filling coefficient is performed by the intelligent judgment module.

[0035] Preferably, as Figure 2As shown, before the drilling stage, the platform layer first acquires the position of the drill bit through the GNSS sensor, and judges the position of the drill bit, when the position of the drill bit is consistent with the preset drilling position, that is, the deviation value is less than the threshold value, the subsequent drilling operation is carried out; if the position of the drill bit is inconsistent with the preset drilling position, that is, the deviation value is greater than the threshold value, the command for the drill bit to move is judged according to the design drawing, and the command is fed back to the construction personnel, and the construction personnel adjusts the position of the drill bit according to the command, and then starts drilling after the position of the brick is correct, preferably, the design drawing can be obtained by directly importing the CAD design coordinates.

[0036] Preferably, as Figure 2 As shown, during the drilling process, the platform layer accepts the drilling angle data given by the dual-axis angle monitoring sensor, and if the drilling angle is shown to be kept vertical, drilling continues; if the detection hole angle is kept vertical, a graphical command is issued. The construction personnel adjusts the drill bit according to the command.

[0037] Preferably, in the embodiment, the monitoring system is arranged and specifically includes the following steps: Sensor layer installation: strictly according to the equipment parameter selection in the technical scheme. Installation on the pile machine: GNSS positioning and directional antenna are welded on the upper part of the mast; depth encoding sensor is installed near the winch; dual-axis inclination sensor is installed on the mast together with the GNSS antenna workpiece; current sensor is connected to the main circuit of the drilling machine. All sensors are connected according to the IP67 protection level requirement.

[0038] Terminal layer and platform layer configuration: the industrial flat terminal is fixed on the front windshield of the cab through the glass suction cup. Create a project in the cloud platform, set up the construction area through the "pile area management" module, set the pile spacing to 2.5 meters, and design the pile length to 25 meters. Through the "pile point import" function, the CAD coordinate file provided by the design institute is batch imported to generate all the to-be-constructed pile positions in the platform electronic map.

[0039] The present application includes the following advantages: 1. Quality improvement: from passive "monitoring" to active "control", through multiple intelligent closed loops, the construction quality is fine and standardized, and the quality dispersion is greatly reduced.

[0040] 2. Efficiency improvement: through accurate guidance and intelligent decision-making (such as automatic end-hole judgment), the repeated work, point-finding time and waste pile rate are significantly reduced, and the overall construction efficiency is improved.

[0041] 3. Cost reduction: avoid material waste and unnecessary rework caused by over-drilling, under-drilling, deviation, etc., effectively reduce the comprehensive cost.

[0042] 4. The management is completed sublimation: make project management from "experience driven" to "data driven", realize the whole process of modernization, traceability, for big data analysis and process optimization lay the foundation.

[0043] Finally, it should be noted that: the above is only the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A closed-loop monitoring system for the entire process of pile foundation construction, characterized in that, include: A sensing layer for collecting construction information during pile foundation construction, the sensing layer being installed on the pile driver; a terminal layer for receiving the construction information acquired by the sensing layer and preprocessing the construction information, the terminal layer being connected to the sensing layer; and a platform layer for receiving the preprocessed construction information from the terminal layer, analyzing the construction information to obtain corresponding construction instructions, and feeding back the construction instructions to the construction personnel so that the construction personnel can operate the pile driver according to the construction instructions, the platform layer being connected to the terminal layer.

2. The closed-loop monitoring system for the entire pile foundation construction process as described in claim 1, characterized in that, The sensing layer includes a depth sensor for detecting borehole depth and pile bottom elevation, and the depth sensor is installed at the winch of the pile driver.

3. The closed-loop monitoring system and method for the entire pile foundation construction process as described in claim 1, characterized in that, The terminal layer includes a display, and the platform layer sends the construction instructions back to the terminal layer and displays them on the display.

4. The closed-loop monitoring system for the entire pile foundation construction process as described in claim 1, characterized in that, The sensing layer also includes a flow monitoring sensor for monitoring the injection volume of slurry.

5. The closed-loop monitoring system for the entire pile foundation construction process as described in claim 1, characterized in that, The sensing layer includes a current monitoring sensor for monitoring the drilling motor current in order to monitor changes in the formation shear strength.

6. The closed-loop monitoring system for the entire pile foundation construction process as described in claim 1, characterized in that, The sensing layer includes a biaxial angle monitoring sensor for monitoring the verticality of the drill bit during the pile foundation process.

7. The closed-loop monitoring system for the entire pile foundation construction process as described in claim 1, characterized in that, The platform layer includes a graphical reporting module for integrating the construction information into graphical reports and feeding them back to the construction personnel.

8. A monitoring method for a closed-loop monitoring system for the entire pile foundation construction process as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Collect construction information during the pile foundation construction through the sensing layer; S2. The construction information is transmitted to the terminal layer, and the terminal layer preprocesses the construction information. S3. The preprocessed construction information is transmitted to the platform layer. The platform layer analyzes the construction information to obtain corresponding construction instructions and feeds back the obtained construction instructions to the construction personnel. The construction personnel operate the pile driver according to the construction instructions.

9. The monitoring method of the closed-loop monitoring system for the entire pile foundation construction process as described in claim 8, characterized in that, The sensing layer includes a current monitoring sensor. The platform layer analyzes the construction information and issues construction instructions, specifically including the following steps: S31. During the drilling stage, the current monitoring sensor monitors the drilling motor current in real time. The platform layer has a preset current threshold. When the value of the drilling motor current received by the platform layer meets the current threshold, the platform layer issues a hole-ending command to the construction personnel.

10. The monitoring method of the closed-loop monitoring system for the entire pile foundation construction process as described in claim 8, characterized in that, The sensing layer includes a flow monitoring sensor. The platform layer analyzes the construction information and issues construction instructions, specifically including the following steps: S32. During the grouting stage, the flow monitoring sensor monitors the flow information of the grout in real time. The platform layer calculates the real-time filling coefficient of the grouting pile based on the ratio of the flow information of the grout to the designed grouting volume. When the real-time filling coefficient is abnormal, the platform layer sends an alarm message to the construction personnel.

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