Automatic lime-soil compaction pile monitoring system

Abstract

The utility model discloses an automatic monitoring system for a lime-soil compaction pile. The monitoring system is established based on an existing monitoring terminal, a signal communication base station, a monitoring server and a host, through the scheme, during practical operation, a high-precision Beidou positioning antenna is installed on a compaction pile machine for hole site lofting, the centimeter-level positioning precision is obtained, it is guaranteed that site sites are accurate and cannot be damaged, and drivers find sites rapidly; during hole depth detection, a depth sensor is installed on the compaction pile machine, the depth change of the current hole position is recorded in real time in the construction process, and a depth curve is obtained; during perpendicularity control, a high-precision double-shaft tilt angle sensor is installed on a pile frame of the compaction pile machine, the perpendicularity condition of the current pile frame is obtained in real time, a perpendicularity change curve is obtained, and it is ensured that the perpendicularity of formed holes meets the requirement. During backfilling and hole tamping, the hole tamping position is automatically positioned through positioning equipment installed on the tamping machine, indexes such as the soil feeding frequency, the soil feeding duration, the soil feeding interval and the tamping frequency are recorded through a sensor, the backfilling quality of each tamping hole is recorded, and therefore the purpose of tamping quality management is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the lime-soil compaction pile construction technical field, specifically to be a kind of lime-soil compaction pile automation monitoring system. BACKGROUND

[0002] Lime-soil compaction pile is the lateral extrusion of the hole formation to make the soil between piles compacted, and then layered ramming is filled with lime-soil. It belongs to artificial composite foundation, and the upper load is borne by the pile body and the soil between piles, with the characteristics of in-situ solution, deep compaction and soil control. It can improve the bearing capacity of foundation, water stability and eliminate the collapsibility of foundation. It is suitable for solving collapsible loess foundation with large thickness, and is widely used in northwest and north China at present. However, lime-soil compaction pile has the characteristics of large engineering quantity, high concealment, fast construction speed and complicated post-detection. If the construction quality is unqualified, it will cause the bearing capacity of foundation to not meet the design requirements, thereby causing uneven settlement of the upper structure. Therefore, pile foundation construction quality control is a key and difficult problem in construction management. SUMMARY

[0003] Therefore, in order to solve the above problems, the utility model provides a kind of lime-soil compaction pile automation monitoring system;It is suitable for lime-soil compaction pile construction, and the technology uses wireless signal transmission, which can realize real-time and continuous monitoring of data all day long, reduce the number of monitoring personnel and field operation quantity, and facilitate the purpose of ramming quality management.

[0004] The utility model is realized as follows: a kind of lime-soil compaction pile automation monitoring system is constructed, and the composition of the system includes data monitoring system, data monitoring terminal, signal communication base station, monitoring server and host capable of realizing information transmission;The output end of high-precision Beidou positioning antenna, depth sensor, high-precision double-shaft inclination sensor, positioning device and soil delivery detection sensor of data monitoring system is respectively communicated with data monitoring terminal;

[0005] The high-precision Beidou positioning antenna is installed on the compaction pile machine, and the positioning accuracy is centimeter level, so that the site point is accurate, cannot be damaged and the driver can quickly find the point.

[0006] The depth sensor is installed on the compaction pile machine, and is used for hole depth detection. In the construction process, the depth change of current hole position is recorded in real time, and depth curve is obtained.

[0007] The high-precision double-shaft inclination sensor is installed on the pile frame of compaction pile machine, verticality control is realized, the verticality of current pile frame is obtained in real time, verticality change curve is obtained, and the verticality of hole formation is ensured to meet the requirements.

[0008] The positioning device is installed on the rammer, and the position of the ramming hole is automatically positioned when backfilling the ramming hole;

[0009] The soil feeding detection sensor is installed on the rammer, and records the indexes such as the number of soil feeding, the soil feeding time, the soil feeding interval, the number of ramming, and the backfill quality of each ramming hole, so as to realize the purpose of quality management of ramming.

[0010] The technology adopts wireless signal transmission, can continuously monitor data in real time all day long, can reduce construction interference and manual measurement error, can improve the data collection frequency and accuracy, can ensure the quality of on-site construction, can greatly reduce the number of monitoring personnel and on-site operation amount, can effectively improve the professional health level of monitoring personnel, can reduce safety risks, and has a broad popularization and application prospect. The construction method has good application effect, is praised by the owner, design and supervision, and has achieved obvious social benefits.

[0011] Further, the tablet terminal is installed in the corresponding cab.

[0012] Further, the soil feeding camera is used to shoot the soil feeding process and the situation after soil feeding.

[0013] Further, the tablet terminal is installed through a tablet support, one end of the tablet support is fixed in the cab by a hoop or a self-tapping screw, and the other end is connected with the tablet.

[0014] Further, the positioning antenna is fixed at a suitable position of the power head, and the positioning antenna feeder is fixed along the pipeline by a strap; the directional antenna is installed on the top of the cab and fixed by a strap, and forms a central axis with the positioning antenna, and the directional antenna feeder extends to below the cab and is fixed by a strap to closely adhere to the cab.

[0015] Further, the inclination sensor is installed through a support, the support is welded to the bottom of the column of the extruded pile machine by electric welding, and the inclination sensor is fixed on the support by screws and nuts.

[0016] This utility model has the following advantages: The monitoring system is based on a monitoring terminal, a signal communication base station, a monitoring server, and a host computer; in practical operation, the above scheme achieves centimeter-level positioning accuracy by installing a high-precision Beidou positioning antenna on the compaction pile machine, ensuring accurate on-site positioning, preventing damage, and enabling the driver to quickly locate points; for hole depth detection, a depth sensor is installed on the compaction pile machine to record the depth change of the current hole position in real time during construction and obtain a depth curve; for verticality control, a high-precision dual-axis tilt sensor is installed on the pile frame of the compaction pile machine to obtain the verticality of the pile frame in real time. During backfilling and tamping, the positioning device installed on the tamping machine automatically positions the tamping hole, and sensors record indicators such as the number of soil deliveries, soil delivery time, soil delivery interval, and number of tamping blows, recording the backfilling quality of each tamping hole, thereby achieving the purpose of compaction quality management. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the implementation of the monitoring system in this application. Detailed Implementation

[0018] The following will be combined with the appendix Figure 1 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] This utility model provides an automated monitoring system for lime-soil compaction piles, such as... Figure 1 As shown, this application can be implemented in the following manner; the system comprises a data monitoring system 10 capable of information transmission, a data monitoring terminal 20, a signal communication base station 21, a monitoring server 22, and a host 23, characterized in that;

[0020] The data monitoring system 10 includes a high-precision Beidou positioning antenna 11, a depth sensor 12, a high-precision dual-axis tilt sensor 13, a positioning device 14, and a soil delivery detection sensor 15; the output terminals of the high-precision Beidou positioning antenna 11, depth sensor 12, high-precision dual-axis tilt sensor 13, positioning device 14, and soil delivery detection sensor 15 of the data monitoring system 10 communicate with the data monitoring terminal 20 respectively.

[0021] The high-precision Beidou positioning antenna 11 is installed on the compaction pile machine to achieve centimeter-level positioning accuracy, ensuring accurate on-site location, preventing damage, and enabling the driver to quickly locate the point.

[0022] The depth sensor 12 is installed on the compaction pile machine for hole depth detection, records the depth change of the current hole position in real time during the construction process, and obtains a depth curve;

[0023] The high-precision dual-axis inclination sensor 13 is installed on the pile frame of the compaction pile machine to realize verticality control, obtain the verticality of the current pile frame in real time, obtain a verticality change curve, and ensure that the verticality of the formed hole meets the requirements.

[0024] The positioning device 14 is installed on the rammer to automatically position the ramming hole position when backfilling the ramming hole.

[0025] The soil feeding detection sensor 15 is installed on the rammer to record the soil feeding frequency, soil feeding time, soil feeding interval, and ramming frequency, and record the backfill quality of each ramming hole, thereby achieving the purpose of ramming quality management.

[0026] In the implementation of the automatic monitoring system for lime-soil compaction piles described in the application, a tablet terminal 24 is installed in the corresponding cab.

[0027] In the implementation of the automatic monitoring system for lime-soil compaction piles described in the application, a soil feeding camera 16 is used to shoot the ramming process and the situation after ramming.

[0028] In the implementation of the automatic monitoring system for lime-soil compaction piles described in the application, the tablet terminal 24 is installed through a tablet support, one end of the tablet support is fixed in the cab by a hoop or self-tapping screw, and the other end is connected with the tablet.

[0029] In the implementation of the automatic monitoring system for lime-soil compaction piles described in the application, the positioning antenna 11 is fixed at a suitable position of the power head, and the positioning antenna feeder is fixed along the pipeline with a strap; the directional antenna is installed on the top of the cab and fixed with a strap, forming a central axis with the positioning antenna, and the directional antenna feeder extends to below the cab and is fixed with a strap close to the cab.

[0030] In the implementation of the automatic monitoring system for lime-soil compaction piles described in the application, the inclination sensor 13 is installed through a support, the support is welded at the bottom of the compaction pile machine column by electric welding, and the inclination sensor is fixed on the support by screws and nuts.

[0031] In the implementation of the automatic monitoring system for the lime-soil compaction pile described in the present application, the data acquisition process of the system is as follows: after the sensor wireless ad hoc network monitoring system is installed, the sensor transmission data is acquired by a computer, a cloud service platform and a professional software form a monitoring command system, the working conditions of each sensor and acquisition terminal are checked online on the cloud service platform to confirm whether they are online, and problems should be handled in a timely manner; through the platform operation, the real-time and historical acquisition data of each monitoring terminal can be viewed in the form of graphs and tables, and the acquisition frequency can be converted into intuitive monitoring results such as stress through the input of sensor calibration parameters; the monitoring results of each terminal can be downloaded by the cloud platform, which is convenient for preparing monitoring measurement reports.

[0032] According to the terminal display of each data, the deviation between the actual value and the design value is analyzed in a timely manner; during the hole forming operation, the pile point coordinates, pile body perpendicularity, drilling depth, equipment current and the like are monitored in real time, and during the ramming operation, the ramming time, point position, number of times, potential energy, amount of filling material, pile depth and the like are monitored in real time, and when the deviation value exceeds the allowable value, the construction personnel are prompted to start the deviation correction device for correction.

[0033] The principle of the lime-soil compaction pile construction monitoring process involved in the present technology is as follows: during the whole hole forming construction process, important construction parameters such as hole position, hole depth and perpendicularity are monitored synchronously by using automatic means, so that each link of the hole forming construction has a trace to follow. During the backfilling and ramming operation, the hole position is automatically positioned by the positioning equipment installed on the rammer, and the number of times of sending soil, the length of time of sending soil, the interval of sending soil, the number of times of ramming and the like are recorded by the sensor, so as to record the backfilling quality of each ramming hole and achieve the purpose of ramming quality management. Specifically embodied in:

[0034] 1. Hole position detection: before the compaction pile construction, the project department technician is responsible for dividing the construction area, after the division, the surveying team performs regional boundary point setting out, and the construction workers perform detailed point setting out by using a steel ruler and lime. This method has problems such as inaccurate point placement, easily damaged setting out point marking and driver finding point relying on the guidance of workers below and the like. In view of this situation, a high-precision Beidou positioning antenna is installed on the compaction pile machine to obtain centimeter-level positioning accuracy, so as to ensure accurate on-site point position, non-damage and rapid driver finding point.

[0035] 2. Hole depth detection: a depth sensor is installed on the compaction pile machine, and the depth change of the current hole position is recorded in real time during the construction process to obtain a depth curve.

[0036] 3. Perpendicularity detection: a high-precision dual-axis inclination sensor is installed on the pile frame of the compaction pile machine to obtain the perpendicularity of the current pile frame in real time, obtain a perpendicularity change curve and ensure that the perpendicularity of the hole forming meets the requirements.

[0037] 4, ramming hole position: the clamp lever hammer and the weight are responsible for backfilling the pile hole formed by the extrusion pile machine. In order to statistically analyze the backfilling data, high-precision Beidou positioning technology is used to obtain the current construction position when the hole is initially rammed and filled, and to automatically generate the ramming hole position.

[0038] 5, the number of times of sending soil: by detecting the start-stop condition of the clamp lever hammer and the weight conveyor belt, the total number of times of sending soil for each ramming hole position can be obtained.

[0039] 6, the length of time of sending soil: by detecting the start-stop condition of the clamp lever hammer and the weight conveyor belt, the length of time of sending soil for each time can be obtained.

[0040] 7, the interval of sending soil: by detecting the start-stop interval of the clamp lever hammer and the weight conveyor belt, the interval of sending soil between the previous and the next time can be obtained.

[0041] 8, the number of times of ramming: by detecting the start-stop condition of the eccentric wheel or the winch, the number of times of ramming after each time of sending soil can be obtained.

[0042] Data acquisition: after the sensor wireless ad hoc network monitoring system is installed, the sensor transmission data is collected by a computer, a cloud service platform and professional software form a monitoring command system, online login to the cloud service platform to check the working condition of each sensor and collection terminal, confirm whether it is online, and problems should be handled in time.

[0043] Data analysis and feedback on-site adjustment: according to the terminal display of each data, the actual value and the design value deviation are analyzed in time. In the process of hole forming operation, the pile point coordinates, pile body perpendicularity, drilling depth, equipment current and other parameters are monitored in real time, and in the process of ramming operation, the ramming time, point position, number of times, potential energy, filling amount, pile depth and other parameters are monitored in real time. When the deviation value exceeds the allowable value, the construction personnel are prompted to start the deviation correction device for correction.

[0044] Sichuan Highway Bridge Construction Group Co., Ltd. relies on the lime-soil compaction pile construction of the Huachi to Ershili Goukou section of the Jiaonan to Haiyan Highway project of G341 line, and forms the automatic monitoring and monitoring construction control technology in the hole forming stage and backfilling and ramming stage. When the hole is laid out, a high-precision Beidou positioning antenna is installed on the compaction pile machine to obtain centimeter-level positioning accuracy, ensuring accurate point positioning on site, which cannot be damaged and the driver can quickly find the point. When the hole depth is detected, a depth sensor is installed on the compaction pile machine. During the construction process, the depth change of the current hole position is recorded in real time, and the depth curve is obtained. When the verticality is controlled, a high-precision dual-axis inclination sensor is installed on the pile frame of the compaction pile machine to obtain the verticality of the current pile frame in real time, and the verticality change curve is obtained to ensure that the verticality of the hole meets the requirements. When backfilling and ramming, the positioning equipment installed on the rammer machine automatically positions the ramming position, and records the indexes such as the number of soil delivery, soil delivery time, soil delivery interval and ramming frequency, so as to record the backfilling quality of each ramming hole and achieve the purpose of ramming quality management.

[0045] The above-mentioned innovative construction control technology is summarized and formed into the automatic monitoring and monitoring construction method of lime-soil compaction pile, which is successfully applied in the lime-soil compaction pile construction of the Huachi to Ershili Goukou section of the Jiaonan to Haiyan Highway project of G341 line. The construction time is shortened from 75 days to 48 days, and the cost of detection personnel is reduced by 13,000 yuan and the salary of surveyors is reduced by 24,000 yuan, with a total economic benefit of 37,000 yuan and a shortened construction period of 27 days. The method is convenient to construct, has strong adaptability, wide application range, can achieve high-precision real-time monitoring, the monitoring data is accurate, the quality process control is accurate, has positive popularization significance, and has received consistent praise from the owner, the supervisor and other relevant units and departments.

[0046] The present application brings the following benefits, and the benefit analysis is as follows:

[0047] Economic benefit: The application of the technology can reduce the number of measurement personnel and the working hours of monitoring operation, and effectively reduce the wire length between monitoring elements. After the project is completed, the monitoring system can be reused, ensuring economic benefit while ensuring the construction quality of lime-soil compaction pile.

[0048] The construction time is shortened from 75 days to 48 days, and the cost of detection personnel is reduced by 13,000 yuan and the salary of surveyors is reduced by 24,000 yuan, with a total economic benefit of 37,000 yuan and a shortened construction period of 27 days.

[0049] Survey personnel: 12,000 lime-soil compaction piles, manual measurement time per root 0.03h, total measurement time 12,000 roots*0.03h / time / 8h / workday=45 workdays; manual measurement requires 2 technical personnel, each at a rate of 600 yuan / day, total labor cost 2 people*600 yuan / day*45 days=54,000 yuan.

[0050] The detection personnel: the automatic monitoring and detection of the lime-soil compaction pile saves 48 workdays, reduces the labor cost of the monitoring personnel by 48*600=28800 yuan, and saves 48 workdays in the detection period of the lime-soil compaction pile.

[0051] Social benefits: the technology uses wireless signal transmission to realize real-time and continuous monitoring of data throughout the day, reduces the interference of construction operations and the measurement error of manual measurement, improves the frequency and accuracy of data collection, ensures the quality of on-site construction, greatly reduces the number of monitoring personnel and the amount of on-site work, effectively improves the professional health level of the monitoring personnel, reduces the safety risk, and has a broad application prospect. The application effect of the method is good, and it has been praised by the owner, the designer, and the supervisor, and has achieved obvious social benefits.

[0052] Time benefits: the automatic monitoring and detection of the lime-soil compaction pile simplifies the overall construction process, has low construction difficulty, fast installation speed, saves the measurement time and process detection time of traditional monitoring and detection, speeds up the construction speed of the lime-soil compaction pile, and greatly shortens the construction period. The total work can save 27 days of construction period.

[0053] Quality benefits: through real-time comparison of data, the correction program is guided to realize automatic correction, intelligent installation with high precision, reduction of manual measurement error, real-time monitoring during the process, and ensuring of construction quality.

[0054] Application example: G341 line Jiaonan to Haiyan highway Hua Chi to Ershili ditch section highway project, construction unit: Gansu Huanhua highway Co., Ltd., construction unit: Sichuan highway bridge construction group Co., Ltd. The project is located in the collapsible loess area of Gansu Province, and the lime-soil compaction pile constructed this time totals 12000.

[0055] The technology is successfully applied in the automatic monitoring of the lime-soil compaction pile construction process. By installing a high-precision Beidou positioning antenna on the compaction pile machine, a centimeter-level positioning accuracy is obtained, ensuring accurate site positioning, no damage, and rapid driver point finding. During hole depth detection, a depth sensor is installed on the compaction pile machine, which records the depth change of the current hole in real time during the construction process and obtains the depth curve. During verticality control, a high-precision dual-axis inclination sensor is installed on the pile frame of the compaction pile machine to obtain the verticality of the current pile frame in real time and obtain the verticality change curve to ensure that the verticality of the hole meets the requirements. During backfill tamping, the positioning equipment installed on the tamping machine automatically positions the tamping hole position, records the tamping frequency, tamping time, tamping interval, and tamping frequency through the sensor, records the backfill quality of each tamping hole, and realizes the purpose of tamping quality management. The overall installation operation is convenient, the data collection is accurate, the adaptability is strong, the application scope is wide, the social and economic benefits are significant, and it has a good application prospect.

[0056] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended 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 lime-soil compaction pile automatic monitoring system, the composition of the system comprising a data monitoring system (10) capable of realizing information transmission, a data monitoring terminal (20), a signal communication base station (21), a monitoring server (22), a host (23), Characterized in that; The data monitoring system (10) comprises a high-precision Beidou positioning antenna (11), a depth sensor (12), a high-precision double-axis inclination sensor (13), a positioning device (14) and a soil feeding detection sensor (15); the output ends of the high-precision Beidou positioning antenna (11), the depth sensor (12), the high-precision double-axis inclination sensor (13), the positioning device (14) and the soil feeding detection sensor (15) of the data monitoring system (10) are respectively in communication with a data monitoring terminal (20); The high-precision Beidou positioning antenna (11) is installed on the extruded pile machine; The depth sensor (12) is installed on the extruded pile machine and is used for hole depth detection, and records the depth change of the current hole position in real time during the construction process; The high-precision double-axis inclination sensor (13) is installed on the pile frame of the extruded pile machine to realize verticality control; The positioning device (14) is installed on the rammer machine and automatically positions the rammer hole position when backfilling the rammer hole; The soil feeding detection sensor (15) is installed on the rammer machine and records the soil feeding frequency, soil feeding time length, soil feeding interval and ramming frequency indexes.

2. The automatic monitoring system for lime-soil compaction piles according to claim 1, characterized in that It also comprises a tablet terminal (24) installed in the corresponding cab.

3. The automatic monitoring system for lime-soil compaction piles according to claim 1, characterized in that; It also comprises a soil feeding camera (16) for shooting the soil ramming process and the situation after soil ramming.

4. The automatic monitoring system for lime-soil compaction piles according to claim 2, characterized in that; The tablet terminal (24) is installed through a tablet support, one end of the tablet support is fixed in the cab by a hoop or a self-tapping screw, and the other end is connected with the tablet.

5. The lime-soil ram-compaction pile automatic monitoring system according to claim 2, characterized in that; The positioning antenna (11) is fixed at a suitable position of the power head, and the positioning antenna feeder is fixed along the pipeline with a ribbon; the directional antenna is installed on the top of the cab and is fixed with a ribbon, forming a central axis with the positioning antenna; the directional antenna feeder extends below the cab and is fixed with a ribbon close to the cab.

6. The lime-soil ram-compaction pile automatic monitoring system according to claim 2, characterized in that; The inclination sensor (13) is installed through a support, the support is welded at the bottom of the extruded pile machine column by electric welding, and the inclination sensor is fixed on the support by screws and nuts.

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