A cement soil mixing pile construction process monitoring system and method

Abstract

The present invention discloses a cement-soil mixing pile construction process monitoring system and method, belonging to the technical field of cement-soil mixing pile quality monitoring. The system comprises a field data acquisition module, a signal transmission module, an intelligent monitoring platform and a remote monitoring client. The present invention solves the problems of low automation in cement-soil mixing pile construction, failure to add cement slurry according to actual soil layer conditions, lack of effective supervision during construction, and backward post-construction detection methods through information and intelligent technologies.

Description

Technical Field

[0001] The invention relates to the technical field of cement soil mixing pile quality monitoring, and more particularly to a cement soil mixing pile construction process monitoring system and method. Background Art

[0002] Cement-soil mixing piles have been widely used due to their distinct advantages. In recent years, although there have been some innovations in construction methods, which have significantly improved the methods of ensuring construction quality, the actual results are often unsatisfactory. At present, the main problems in monitoring the construction process of cement-soil mixing piles are as follows:

[0003] (1) Human factors have a great impact

[0004] The construction of mixing piles is mainly carried out by temporary teams, and the general contractor is generally less directly involved. The quality of the construction team varies, and it is difficult to control the quality of the piles. The construction of mixing piles generally requires on-site supervision by on-site supervisors, but it is difficult for on-site supervisors to monitor 24 hours a day.

[0005] (2) Existing instruments and equipment have limited monitoring capabilities

[0006] At present, there are relatively few parameters monitored by instruments, mainly cement slurry density, flow rate (total slurry volume, section slurry volume), depth and other indicators, and other parameters are basically out of control. Moreover, the monitoring of these parameters is quite arbitrary. For example, cement slurry density is generally achieved by random spot checks with a hydrometer, and flow meters and other equipment have not yet been fully adapted to stable products for cement slurry. Often, quality problems occur after a few days of use and the equipment cannot continue to operate, resulting in the monitoring being ineffective.

[0007] (3) Lagging detection methods

[0008] At present, the quality inspection of mixing piles is generally completed by coring or load testing within a certain age after the completion of construction. Although these measures have a positive effect, their purpose is to verify the construction quality and serve as a post-test, but they cannot effectively promote quality control during the construction process, and the human influence is still large.

[0009] (4) Low level of information construction

[0010] Soft foundation treatment construction represented by cement soil mixing piles is still mainly managed manually, but there are many uncertainties in manual management, making it difficult to monitor the construction process and construction quality in all aspects in real time, and it is impossible to make timely professional evaluations. This is mainly manifested in the inability to conduct timely, professional, and accurate evaluation and analysis of the quality of single piles, overall construction quality, and site conditions, and the low level of information construction.

[0011] Therefore, how to provide a cement-soil mixing pile construction process monitoring system and method that can solve the above-mentioned problems is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0012] In view of this, the present invention provides a cement-soil mixing pile construction process monitoring system and method to solve the technical problems existing in the above-mentioned prior art.

[0013] In order to achieve the above object, the present invention provides the following technical solutions:

[0014] A cement-soil mixing pile construction process monitoring system, comprising a field data acquisition module, a signal transmission module, an intelligent monitoring platform and a remote monitoring client;

[0015] Among them, the on-site data acquisition module collects pile-forming process data; the signal transmission module transmits the pile-forming process data to the intelligent monitoring platform; the intelligent monitoring platform analyzes and compares the transmitted pile-forming process data, generates a monitoring report, and outputs the monitoring report to the remote monitoring client.

[0016] Preferably, the field data acquisition module includes: collecting pile forming process data through wireless sensors, the wireless sensors include depth sensors, density sensors and flow sensors;

[0017] The pile construction process data include pile length, mud flow, drilling speed, water-cement ratio, total slurry volume, total ash volume, segment slurry volume, segment ash volume, construction process parameters and construction duration.

[0018] Preferably, the signal transmission module includes: a base station and a base station deployment unit, wherein the base station deployment unit collects the location of the wireless sensor, obtains the point coverage information, area coverage information and fence coverage information of the wireless sensor, and deploys the base station through an immune algorithm based on the point coverage information, area coverage information and fence coverage information.

[0019] Preferably, the intelligent monitoring platform includes a database, a server, an intelligent evaluation module and an intelligent control module;

[0020] The server is respectively connected to the base station, the database, the intelligent evaluation module and the intelligent control module; the server transmits the information output by the intelligent evaluation module and the intelligent control module to the remote monitoring client via the Internet.

[0021] Preferably, the database includes a distributed cache area.

[0022] Preferably, the intelligent assessment module includes:

[0023] A single pile quality assessment unit, which obtains a single pile quality assessment result according to the pile length, the mud flow rate, the drilling speed, and the water-cement ratio;

[0024] A pile test analysis unit is used to establish a pile test analysis model based on the single pile quality assessment result, calculate the fuzzy mathematical membership function, obtain a pile test analysis matrix, and linearly multiply the pile test analysis matrix with the weight coefficient of the corresponding single pile quality assessment score to obtain a pile test analysis result;

[0025] The overall site construction quality assessment unit, combined with the single pile quality assessment results, makes a qualitative evaluation report on the current overall and local construction quality, and makes an adjustment guidance report for the next step of construction;

[0026] The integration unit integrates the single pile quality assessment results, test pile analysis results, qualitative evaluation report and adjustment guidance report and outputs them as a monitoring report.

[0027] Preferably, the intelligent monitoring platform further comprises a monitoring display unit connected to the integration unit and configured to display output information of the monitoring report.

[0028] A method for monitoring the construction process of a cement-soil mixing pile, comprising:

[0029] S100: collecting data of the pile forming process;

[0030] S200: Transmitting the pile forming process data;

[0031] S300: Analyze and compare the transmitted pile formation process data, generate a monitoring report and output it.

[0032] It can be known from the above technical scheme that compared with the prior art, the present invention discloses a cement soil mixing pile construction process monitoring system and method, which solves the problems of low automation level of cement soil mixing pile construction, failure to add cement slurry according to actual soil layer conditions, lack of effective supervision during construction, backward post-construction detection methods, etc. through information and intelligent technology. Combined with intelligent hardware equipment at the construction site, key indicators such as mud flow, drilling speed, water-cement ratio, total slurry volume, total ash volume, segment slurry volume, segment ash volume, construction process parameters, and construction duration are collected in real time to achieve quality control of the entire construction process, and achieve visualization of the pile formation process, intelligent data collection, networking of information collection, and full-process traceability of pile body quality. The present invention has obvious competitive advantages in terms of expert resources, demand innovation, customer relations, and internal product management level and focus. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0034] Figure 1 is a system structure block diagram of the present invention;

[0035] Figure 2 It is a schematic diagram of the system structure of the present invention;

[0036] Figure 3 The figure is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-2 , the embodiment of the present invention discloses a cement soil mixing pile construction process monitoring system, including a field data acquisition module, a signal transmission module, an intelligent monitoring platform and a remote monitoring client;

[0039] Among them, the on-site data acquisition module collects pile-forming process data; the signal transmission module transmits the pile-forming process data to the intelligent monitoring platform; the intelligent monitoring platform analyzes and compares the transmitted pile-forming process data, generates a monitoring report, and outputs the monitoring report to the remote monitoring client.

[0040] In a specific embodiment, the field data acquisition module includes: collecting pile forming process data through wireless sensors, the wireless sensors including depth sensors, density sensors and flow sensors;

[0041] The pile construction process data include pile length, mud flow, drilling speed, water-cement ratio, total slurry volume, total ash volume, segment slurry volume, segment ash volume, construction process parameters and construction duration.

[0042] In a specific embodiment, the signal transmission module includes: a base station and a base station deployment unit, wherein the base station deployment unit collects the location of the wireless sensor, obtains the point coverage information, area coverage information and fence coverage information of the wireless sensor, and deploys the base station through an immune algorithm based on the point coverage information, area coverage information and fence coverage information.

[0043] Specifically, in the base station deployment problem of the wireless communication network, based on point coverage information (i.e., ensuring that specific points or locations are covered by signals), area coverage information (ensuring that all points in a certain area are covered), and fence coverage information (ensuring that there is sufficient signal coverage along a specific path or boundary), this embodiment can use an immune algorithm to optimize the deployment of base stations. The immune algorithm is an evolutionary algorithm that simulates the working mechanism of the biological immune system. It solves the optimization of complex problems by simulating processes such as antigen recognition, antibody production, and immune memory. In the base station deployment problem, the coverage requirements can be used as "antigens", and the location and number of base stations can be used as "antibodies". The optimal base station deployment plan can be found through iteration and optimization.

[0044] In a specific embodiment, the intelligent monitoring platform includes a database, a server, an intelligent evaluation module and an intelligent control module;

[0045] The server is respectively connected to the base station, the database, the intelligent evaluation module and the intelligent control module; the server transmits the information output by the intelligent evaluation module and the intelligent control module to the remote monitoring client via the Internet.

[0046] In a specific embodiment, the database includes a distributed cache.

[0047] In a specific embodiment, the intelligent assessment module includes:

[0048] A single pile quality assessment unit, which obtains a single pile quality assessment result according to the pile length, the mud flow rate, the drilling speed, and the water-cement ratio;

[0049] A pile test analysis unit is used to establish a pile test analysis model based on the single pile quality assessment result, calculate the fuzzy mathematical membership function, obtain a pile test analysis matrix, and linearly multiply the pile test analysis matrix with the weight coefficient of the corresponding single pile quality assessment score to obtain a pile test analysis result;

[0050] The overall site construction quality assessment unit, combined with the single pile quality assessment results, makes a qualitative evaluation report on the current overall and local construction quality, and makes an adjustment guidance report for the next step of construction;

[0051] The integration unit integrates the single pile quality assessment results, test pile analysis results, qualitative evaluation report and adjustment guidance report and outputs them as a monitoring report.

[0052] Specifically, the pile test analysis unit includes:

[0053] Build a test pile analysis model and calculate the fuzzy mathematical membership function:

[0054]

[0055] In the formula, Z xy is the membership degree of the x-single pile quality assessment score in the evaluation standard of the y-th evaluation level, where Z xy ∈[0, 1], N x,m is the quality assessment score of the xth single pile in the mth construction; R xy The x-th single pile quality assessment score corresponds to the evaluation standard of the y-th evaluation level, where x = 1, 2, ..., i; y = 1, 2, ..., j;

[0056] Calculate the pile test analysis matrix:

[0057]

[0058] Wherein, A is the pile test analysis matrix, and the pile test analysis matrix is ​​linearly multiplied with the weight coefficient of the corresponding single pile quality assessment score to obtain the pile test analysis result.

[0059] Specifically, the weight coefficient of the single pile quality assessment score can be obtained using the expert scoring method.

[0060] In a specific embodiment, the intelligent monitoring platform further includes a monitoring display unit connected to the integration unit and configured to display output information of the monitoring report.

[0061] Specifically, this embodiment is based on the Internet of Things soft foundation treatment engineering construction process monitoring platform. On the basis of using existing Internet technology and sensor technology, combined with a large number of rich experiments in geotechnical engineering, a monitoring and analysis system suitable for chemical consolidation soft foundation treatment has been developed. It not only provides reliable guarantee for the construction quality of cement soil mixing piles, high-pressure rotary jet piles, etc., promotes the further development of related technologies, but also can play a positive role in the construction management of various foundation treatment methods.

[0062] See also Figure 3 , a method for monitoring the construction process of cement soil mixing piles, comprising:

[0063] S100: collecting data of the pile forming process;

[0064] S200: Transmitting the pile forming process data;

[0065] S300: Analyze and compare the transmitted pile formation process data, generate a monitoring report and output it.

[0066] Specifically, intelligent alarms are issued based on the generated inspection reports, alarms and intelligent scoring are given for unqualified and non-standard construction, quality assessments of construction piles and pile position distribution maps are conducted, construction status renderings are displayed online in the system, and construction status is pushed via SMS and WeChat messages.

[0067] Specifically, this embodiment can implement comprehensive monitoring and control of the cement soil mixing pile construction process. The system includes a set of fully functional and economically feasible hardware systems and software platforms. Real-time data monitoring is achieved through the combination of software and hardware, and real-time monitoring and control of key parameters in the cement soil mixing pile construction process are performed. The hardware part is various instruments for on-site monitoring, including recorders, sensors and related accessories. The software part is composed of subsystems such as signal reception, data collation, comprehensive analysis, and results feedback. The hardware and software are connected in real time through wireless means.

[0068] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0069] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cement soil mixing pile construction process monitoring system, characterized in that: It includes field data acquisition module, signal transmission module, intelligent monitoring platform and remote monitoring client; The on-site data acquisition module acquires data of the pile-forming process; the signal transmission module transmits the data of the pile-forming process to the intelligent monitoring platform; the intelligent monitoring platform analyzes and compares the transmitted data of the pile-forming process, generates a monitoring report, and outputs the monitoring report to the remote monitoring client; The field data acquisition module includes: collecting pile forming process data through wireless sensors, the wireless sensors include depth sensors, density sensors and flow sensors; The pile construction process data includes pile length, mud flow, drilling speed, water-cement ratio, total slurry volume, total ash volume, segment slurry volume, segment ash volume, construction process parameters and construction duration; The signal transmission module includes: a base station and a base station deployment unit, wherein the base station deployment unit collects the position of the wireless sensor, obtains the point coverage information, the area coverage information and the fence coverage information of the wireless sensor, and deploys the base station through an immune algorithm based on the point coverage information, the area coverage information and the fence coverage information; The intelligent monitoring platform includes a database, a server, an intelligent evaluation module and an intelligent control module; The server is connected to the base station, the database, the intelligent evaluation module and the intelligent control module respectively; the server transmits the information output by the intelligent evaluation module and the intelligent control module to the remote monitoring client via the Internet; The database includes a distributed cache area; The intelligent evaluation module comprises: A single pile quality assessment unit, which obtains a single pile quality assessment result according to the pile length, the mud flow rate, the drilling speed, and the water-cement ratio; A pile test analysis unit is used to establish a pile test analysis model based on the single pile quality assessment result, calculate the fuzzy mathematical membership function, obtain a pile test analysis matrix, and linearly multiply the pile test analysis matrix with the weight coefficient of the corresponding single pile quality assessment score to obtain a pile test analysis result; The overall site construction quality assessment unit, combined with the single pile quality assessment results, makes a qualitative evaluation report on the current overall and local construction quality, and makes an adjustment guidance report for the next step of construction; The integration unit integrates the single pile quality assessment results, the test pile analysis results, the qualitative evaluation report and the adjustment guidance report and outputs them as a monitoring report; The pile test analysis unit specifically includes: Build a test pile analysis model and calculate the fuzzy mathematical membership function: In the formula, Z xy is the membership degree of the x-single pile quality assessment score in the evaluation standard of the y-th evaluation level, where Z xy ∈[0, 1], N x,m is the quality assessment score of the xth single pile in the mth construction; R xy The x-th single pile quality assessment score corresponds to the evaluation standard of the y-th evaluation level, where x = 1, 2, ..., i; y = 1, 2, ..., j; Calculate the pile test analysis matrix: Wherein, A is the pile test analysis matrix, and the pile test analysis matrix is ​​linearly multiplied with the weight coefficient of the corresponding single pile quality assessment score to obtain the pile test analysis result.

2. A cement-soil mixing pile construction process monitoring system according to claim 1, characterized in that: The intelligent monitoring platform also includes a monitoring display unit connected to the integration unit and used to display output information of the monitoring report.

3. A method for monitoring the construction process of a cement-soil mixing pile using the cement-soil mixing pile construction process monitoring system according to any one of claims 1 to 2, characterized in that: include: S100: collecting data of the pile forming process; S200: Transmitting the pile forming process data; S300: Analyze and compare the transmitted pile formation process data, generate a monitoring report and output it.

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