CN-121977632-A - Pile forming quality detection device and pile forming quality detection method

CN121977632ACN 121977632 ACN121977632 ACN 121977632ACN-121977632-A

Abstract

The invention provides a pile quality detection device and a pile quality detection method, wherein the pile quality detection device comprises an automatic winding and unwinding component, a guy cable, a measurement component, a signal sending component, a power supply, a site fixing device and a rear end analysis platform, the automatic winding and unwinding component comprises a wire coil, a driving component and a control component, a tension sensor is arranged at the head of the guy cable, the measurement component comprises a metal protective shell, an infrared ranging device and a wire weight, the signal sending device is arranged on the shell of the automatic winding and unwinding component, the rear end analysis platform is a cloud platform and is used for receiving the travel distance, the ranging information and the tension information of the guy cable and carrying out pile quality detection analysis through professional software, the site fixing device comprises a heavy tripod, a sliding disc and a fixed tray, the fixed tray is arranged at the top of the heavy tripod and is connected with the heavy tripod through bolts, the center of the fixed tray is provided with a through hole for the guy cable to pass, the sliding disc is positioned on the fixed tray, the automatic winding and unwinding component is arranged on the sliding disc, and the sliding disc is reserved at the center of the sliding disc for the guy cable to pass.

Inventors

CHENG ZICONG
SHEN WEN
SHEN RONG
ZHOU QUANJI

Assignees

上海建工集团股份有限公司

Dates

Publication Date: 20260505
Application Date: 20251112

Claims (7)

1. The pile forming quality detection device is characterized by comprising an automatic take-up and pay-off component, a pull rope, a measurement component, a signal transmission component, a power supply, a site fixing device and a rear end analysis platform, wherein the automatic take-up and pay-off component can automatically complete the taking-up and release of the pull rope according to a specified stroke, the pile forming quality detection device comprises a wire coil, a driving component and a control component, a tension sensor is arranged at the head of the pull rope, two ends of the tension sensor are respectively connected with the pull rope and the measurement component and used for measuring and calculating lower tension, the measurement component comprises a metal protective shell, an infrared ranging device and a wire weight, the signal transmission device is arranged on the shell of the automatic take-up and pay-off component and connected with a controller, the pull rope stroke, the ranging information and the tension information are transmitted to the cloud platform through a 4g transmission module, the rear end analysis platform is the cloud platform, the pull rope stroke, the ranging information and the tension information are received, quality detection and analysis are carried out through professional software, the site fixing device comprises a heavy tripod, a sliding tray and a fixed tray, the fixed tray is arranged at the top of the heavy tripod and is connected with a through a bolt, and the fixed tray, and the center of the fixed tray is provided with a through hole.
2. A pile quality detection method, characterized in that the pile quality detection device according to claim 1 is used, the detection method comprising the steps of: step S1, instrument installation: The heavy tripod with the anti-skid foot pad is placed around the hole, the center of the heavy tripod is enabled to be basically aligned with the center of the hole, the heavy tripod is adjusted to adjust the height of the heavy tripod, the top of the heavy tripod is enabled to be basically horizontal, and the heavy tripod is locked and fixed; The second step, the fixed tray and the movable tray are installed, the fixed tray is installed through a bolt at the top of the heavy tripod, and the movable tray is installed on the fixed tray; Thirdly, position calibration, namely adjusting the screwing process of a bolt at the top of the heavy tripod according to the position of the round level bubble, ensuring that the level bubble is horizontally adjusted at the center of a circle, and based on the X-axis position of the track adjustment sliding disc on the fixed tray and the Y-axis position of the disc body of the sliding disc, ensuring that a reserved hole of the sliding disc is at the position of the pile center, and finishing position adjustment; measuring and calculating the elevation of the reserved hole of the sliding disc from the ground surface by using a tape measure; fifthly, installing an automatic winding and unwinding component, namely fixing the automatic winding and unwinding component on a sliding disc, ensuring that a guy cable can vertically pass through the hole, and tying a rope pendant; Sixthly, installing a measuring component, namely installing an infrared ranging device and a wire pendant to ensure that the wire pendant is not shielded; step S2, instrument measurement: the first step of parameter setting, namely electrifying an automatic pay-off and take-up component, and setting a manual input pay-off and take-up speed, a pay-off length each time, a pay-off pause interval time, a guy cable tension threshold value and a recovery limit value; Secondly, automatic measurement, namely automatically starting paying-off measurement according to a built-in program, controlling a micro motor and an infrared transmitter to start by an MCU (micro control unit) when paying-off is stopped each time, measuring the distance from an infrared distance measuring device to the pile hole wall and the distance from the infrared distance measuring device to the pile bottom while rotating by 360 degrees, calculating the measured data by the MCU, transmitting the calculated measured data to an automatic paying-off component controller, and transmitting the calculated data to a cloud platform by a 4g transmission module; thirdly, when the pulling force detected by the inhaul cable detection device is only the dead weight of the infrared ranging device, the automatic wire winding and unwinding component controller stops paying off and starts to recover wires to a specified limit value; and S3, carrying out intelligent analysis by the platform, wherein the platform carries out pile foundation quality detection analysis according to the received infrared ranging information, the received stay wire travel and the received tension information.
3. The method of claim 2, wherein the pile quality inspection analysis includes hole depth calculation, hole diameter analysis, pile hole perpendicularity, and sediment thickness.
4. The method according to claim 3, wherein the calculation of the hole depth comprises the following steps of according to the on-site installation elevation h 1 of the automatic wire winding and unwinding component, the pulling force measured by the cable detection device is only the wire unwinding stroke h 2max when the infrared ranging device is self-weight, and the calculation formula of the hole depth is: h=h 2max +h 3 +h 4 -h 1 -h z , wherein h z is the difference in elevation between the paying-off opening and the sliding disc, h 3 is the height of the measuring part, h 4 is the length of the line drop connecting line, and both are fixed values in meters.
5. The method according to claim 3, wherein the pore diameter analysis comprises calculating the pore diameter by fitting a quadratic function to a circle based on 360 DEG ranging data obtained by an infrared ranging device on the side of the cylinder every time the line is put out and stopped.
6. The method of claim 3, wherein the perpendicularity of the pile hole comprises calculating a deviation of a center of a circle relative to a position of the hole opening based on a circle formed by fitting the infrared ranging information of the position of the pile bottom, thereby calculating the deviation of the pile hole in x and y directions, and calculating the perpendicularity.
7. The method according to claim 3, wherein the sediment thickness comprises a distance h 5 obtained by an infrared distance measuring device at the bottom of the cylinder, a paying-off stroke h 2 in the process, and a sediment surface depth h' =h 2 +h 3 +h 5 -h 1 -h z , so as to obtain sediment thickness h Slag of ＝h-h'＝h 2max +h 4 -h 2 -h 5 , wherein the units are m.

Description

Pile forming quality detection device and pile forming quality detection method Technical Field The invention belongs to the technical field of underground engineering, and particularly relates to a pile forming quality detection device and a pile forming quality detection method. Background The pile hole forming quality is a key link for ensuring the bearing capacity and the structural safety of the pile foundation, and the detection content mainly comprises indexes such as aperture, hole depth, verticality, sediment thickness and the like. The hole depth is typically measured directly using a measuring rope (with a weight) or a steel tape. The method comprises the steps of tying a heavy hammer at one end of a measuring rope, slowly placing the heavy hammer into a hole to the bottom of the hole, reading the scale of the measuring rope, slowly placing an aperture gauge (the diameter is slightly smaller than the designed aperture) into the hole, moving up and down to check whether the aperture is stuck or not, judging whether the aperture meets the design requirement or not, and detecting verticality by using a plumb line method (plumb bob + measuring rope). And fixing a cross at the orifice, hanging down the plumb from the center, measuring the distance of the plumb deviating from the center of the orifice after the plumb is stabilized, and calculating the perpendicularity by combining the depth of the orifice. The sediment thickness detection is to use a measuring rope (with a flat bottom measuring hammer) to measure the depth of a hard soil layer at the bottom of a hole (a heavy hammer touches the hard bottom), then the depth of the surface of the sediment is measured, the difference value is the sediment thickness. The method is simple and easy to operate, extremely depends on manual operation, has poor measurement accuracy due to the influence of shaking of a measuring hand, can only find shrinkage holes and can not find reaming limitations in aperture measurement, and is easy to cause local collapse holes and influence the subsequent concrete pouring quality. Therefore, how to provide a pile quality detection device and a pile quality detection method is a technical problem that needs to be solved by those skilled in the art. Disclosure of Invention The invention provides a pile forming quality detection device and a pile forming quality detection method, which develop an automatic lifting type infrared laser type quality detection device, realize high-precision complete-set detection of pile depth, pile diameter, pile hole perpendicularity and slag forming thickness, greatly reduce labor force in a manual field during automatic lifting detection, automatically collect and analyze monitoring data, and save the workload of later data processing and analysis. The invention relates to a pile forming quality detection device and a pile forming quality detection method, which have the following technical scheme: The pile forming quality detection device comprises an automatic take-up and pay-off component, a pull rope, a measurement component, a signal transmission component, a power supply, a site fixing device and a rear end analysis platform, wherein the automatic take-up and pay-off component can automatically complete the taking-up and release of the pull rope according to a specified stroke, the pile forming quality detection device comprises a wire coil, a driving member and a control member, a tension sensor is arranged at the head of the pull rope, two ends of the tension sensor are respectively connected with the pull rope and the measurement component and used for measuring and calculating lower tension, the measurement component comprises a metal protective shell, an infrared ranging device and a wire weight, the signal transmission device is arranged on the shell of the automatic take-up and pay-off component and connected with a controller, the pull rope stroke, ranging information and tension information are transmitted to the cloud platform through a 4g transmission module, the rear end analysis platform is a cloud platform and used for receiving the pull rope stroke, the ranging information and the tension information, the pile forming quality detection analysis is carried out through professional software, the site fixing device comprises a heavy tripod, a sliding tray and a fixing tray, and the fixing tray are arranged at the top of the heavy tripod and are connected through bolts, and the fixing tray is provided with a through hole for the cable. The invention also provides a pile forming quality detection method, which adopts the pile forming quality detection device, and comprises the following steps: step S1, instrument installation: The heavy tripod with the anti-skid foot pad is placed around the hole, the center of the heavy tripod is enabled to be basically aligned with the center of the hole, the heavy tripod is adjusted to adjust the height of the heavy tripod, the top of the he