CN110195448B - Probe rod device for cast-in-place pile and pile top height and pile diameter real-time measurement method - Google Patents
Probe rod device for cast-in-place pile and pile top height and pile diameter real-time measurement method Download PDFInfo
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- CN110195448B CN110195448B CN201910603467.8A CN201910603467A CN110195448B CN 110195448 B CN110195448 B CN 110195448B CN 201910603467 A CN201910603467 A CN 201910603467A CN 110195448 B CN110195448 B CN 110195448B
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- 239000000523 sample Substances 0.000 title claims abstract description 81
- 238000000691 measurement method Methods 0.000 title claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 26
- 238000010276 construction Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims description 43
- 239000004567 concrete Substances 0.000 claims description 29
- 238000005553 drilling Methods 0.000 claims description 17
- 238000007667 floating Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
Abstract
The invention discloses a probe rod device for a cast-in-place pile, which comprises a probe rod, wherein the probe rod comprises a plurality of vertical sleeve sections; the lowest part of the probe rod is connected with a torque measuring device, and the top of the probe rod is connected with a box body and a measuring rod; the storage battery, the electric control device and the winding shaft are arranged in the box body, and the display screen and the indicator lamp are arranged on the outer wall of the box body; one end of the winding shaft extends out of the box body and is connected with a crank; the wire harness is wound on the winding shaft; the outer surface of the bottom of the vertical sleeve section at the lowest part of the probe rod is symmetrically connected with two sets of distance measuring devices for measuring the aperture; the invention also discloses a pile top height and pile diameter real-time measurement method by using the probe rod device for the cast-in-place pile. The invention can monitor the position of the bottom end of the probe rod through the change of torque, ensure the accuracy of the measurement data of the ranging sensor, and conveniently and efficiently acquire the real-time pile top height and the pile diameter, thereby more effectively controlling the construction of the cast-in-place pile.
Description
Technical Field
The invention relates to the technical field of building pile foundation construction.
Background
Cast-in-place piles are piles made of cast-in-place or reinforced concrete. According to the different pore-forming technology, the filling pile can be divided into a filling pile for dry operation pore-forming, a filling pile for slurry wall protection pore-forming, a filling pile for manual hole digging and the like, and the filling pile is widely applied in construction due to the advantages of no vibration, no soil compaction, low noise, suitability for being used in dense areas of urban buildings and the like during construction.
Due to abrasion of drilling tools, existence of water-swellable clay, soft soil, probe stones in hole walls and the like in the stratum, the hole diameter of the hole can be reduced; the slurry viscosity is too small, the slurry pH value is too large, and the like, so that the phenomenon of hole formation and diameter expansion can be caused.
Although the concrete cast-in-place pile is increasingly applied to the building engineering, in the pile foundation construction process of the building engineering, the control of the pile top cast-in-place height and the pile diameter in real time in the cast-in-place process is an important content which is difficult to control in the cast-in-place pile construction work.
For pile top filling height, at present, workers in construction weld a plurality of steel pipes or reinforcing steel bars on site, manually stamp downwards in a drill hole, and determine whether the pile top is a pile top part by experience feeling according to sound and vibration fed back by the reinforcing steel bars or the steel pipes. The method can not distinguish the problem of pile top deficiency height and pile top sinking caused by dropping of soil into a drilled hole after disturbance in the detection process, so that the grasp of pile top height of a formed pile is not accurate and standard enough.
In the prior art, pile diameters are required to be excavated to visible and touchable positions for measurement, so that the limitation is larger, the real-time pile diameters cannot be timely obtained, the diameter expansion and the diameter reduction cannot be timely detected, and larger loss is generated in the later stage. Because the drilling holes may contain soil, water and other substances, the conventional laser ranging sensor and the ultrasonic ranging sensor cannot ensure the accuracy of aperture measurement.
Disclosure of Invention
The invention aims to provide a probe rod device for a cast-in-place pile, which can conveniently and accurately measure the cast-in-place height of the pile top at any time.
In order to achieve the above purpose, the probe rod device for the cast-in-place pile comprises a vertically arranged probe rod, wherein the probe rod adopts a telescopic sleeve structure and comprises a plurality of vertical sleeve sections; the bottom end of the vertical sleeve section at the lowest part of the probe rod is connected with a torque measuring device, the torque measuring device comprises a shell, a micro motor is arranged in the shell, an output shaft of the micro motor extends downwards out of the shell and is connected with a rotating blade, and a torque sensor is arranged on the output shaft of the micro motor;
the top of the uppermost vertical sleeve section of the probe rod is connected with a box body, the side wall of the uppermost vertical sleeve section of the probe rod is connected with a vertically arranged measuring rod through a connecting rod, scales for measuring the length are arranged on the measuring rod, and zero scale marks of the measuring rod are positioned at the bottom end of the measuring rod;
the storage battery, the electric control device and the winding shaft are arranged in the box body, and the display screen and the indicator lamp are arranged on the outer wall of the box body; the electric control device is internally provided with a memory and stores torque range data when the rotary blade rotates in the air, torque range data when the rotary blade rotates in the soil body with preset soil quality, torque range data when the rotary blade rotates in the uncured concrete with preset labels, length data of each vertical sleeve section and length data of the ranging sensor from the vertical center line of the probe rod;
the winding shaft is rotationally connected to the mounting frame, the mounting frame is fixedly connected with the inner wall of the box body, and one end of the winding shaft extends out of the box body and is connected with the crank; the wire harness is wound on the winding shaft, one end of the wire harness extends out of the box body upwards and is connected with the electric control device, and the wire harness is fixedly connected with the top wall of the box body; the other end of the wire harness extends downwards into the probe rod and is connected with the miniature motor and the torque sensor; the electric control device is connected with the storage battery.
The outer surface of the bottom of the vertical sleeve section at the lowest part of the probe rod is symmetrically connected with two sets of distance measuring devices for measuring the aperture;
the distance measuring device adopts a telescopic sleeve structure and comprises a plurality of horizontal sleeve sections; the direction pointing to the central line of the probe rod is taken as an inward direction, the reverse direction is taken as an outward direction, and the distance measuring device is arranged along the inner and outer directions; the inner end of the innermost horizontal sleeve section is provided with a ranging sensor and a miniature electric push rod, and is provided with an air hole communicated with the probe rod, the ranging sensor is positioned at the center of the inner end of the innermost horizontal sleeve section, and the extension rod of the miniature electric push rod is connected with the outer end of the outermost horizontal sleeve section;
the connecting wire of the miniature electric push rod and the connecting wire of the ranging sensor are integrated in the wire harness and connected with the electric control device along the wire harness.
The distance measuring sensor is an ultrasonic distance measuring sensor or a laser distance measuring sensor.
The invention also discloses a pile top height and pile diameter real-time measurement method by adopting the probe rod device for the cast-in-place pile, which comprises a pile top height real-time measurement method and a pile diameter real-time measurement method which are sequentially carried out;
firstly, a pile top height real-time measurement method is carried out according to the following steps:
the first is sampling;
the staff can keep the soil sample in a floating state according to the soil sample of the soil of the cast-in-place pile construction site and the concrete sample of the concrete for the cast-in-place pile construction, so that the concrete sample is kept in a state before solidification after casting;
second, collecting torque range data;
suspending the rotary blade in the air, starting the micro motor through the electric control device, observing the fluctuation range of the torque measured by the torque sensor through the display screen, inputting the fluctuation range of the torque at the moment into the electric control device as torque range data when the rotary blade rotates in the air, and then closing the micro motor;
inserting the rotary blades into a soil sample, starting the micro motor through the electric control device, observing the fluctuation range of the torque measured by the torque sensor through the display screen, inputting the fluctuation range of the torque at the moment into the electric control device as torque range data when the rotary blades rotate in the soil with preset soil quality, and then closing the micro motor;
inserting the rotary blade into a concrete sample, starting a micro motor through an electric control device, observing the fluctuation range of the torque measured by a torque sensor through a display screen, taking the fluctuation range of the torque at the moment as torque range data when the rotary blade rotates in the unset concrete with a preset mark, inputting the torque range data into the electric control device, and then closing the micro motor;
thirdly, lowering the probe rod to the position of the poured real-time pile top;
inserting the probe rod into the drill hole, opening the micro motor through the electric control device, and performing the operation of lowering the telescopic sleeve sections, namely pulling the telescopic sleeve sections from bottom to top and putting the telescopic sleeve sections into the drill hole, so that the rotary blades sink; when the telescopic sleeve section is lowered, the wire harness on the winding shaft pulls the winding shaft to rotate, so that the wire harness extends downwards along with the telescopic sleeve section;
in the sinking process of the rotary blade, a worker observes a real-time torque signal detected by a torque sensor through a display screen, and when the real-time torque value falls into a torque range of the rotary blade stored in an electric control device when rotating in the air, the rotary blade is shown to be in a suspended state in a drill hole and does not enter a poured real-time pile top position;
when the real-time torque value falls into the torque range when the rotating blades stored in the electric control device rotate in the soil body with preset soil property, the pile top is indicated to have the floating soil, the rotating blades are positioned in the floating soil, and the position of the poured real-time pile top is not entered;
when the real-time torque value falls into the torque range when the rotating blades stored in the electric control device rotate in the unset concrete with preset marks, the rotating blades are indicated to enter the poured real-time pile top position, and at the moment, a worker stops the operation of lowering the telescopic sleeve section and turns off the micro motor through the electric control device;
fourth, obtain the real-time height of the pile top;
after the rotary blade enters the position of the poured real-time pile top, a worker enables the bottom end of the measuring rod to be flush with the ground at the position of the drilling hole, and the height of the vertical sleeve section at the position of the drilling hole exposed out of the drilling hole is measured, wherein the height is H meters, and H is a positive real number;
according to the length data of each vertical sleeve section, calculating the total length of the vertical sleeve section at the drilling hole opening and each vertical sleeve section below the vertical sleeve section to be M meters, wherein M is a positive real number; M-H meters are the distance between the position of the poured real-time pile top and the drilling hole opening, namely the real-time height of the pile top;
after the real-time height of the pile top is obtained by using the pile top height real-time measurement method, the pile top diameter is measured by using the pile diameter real-time measurement method, and the pile diameter real-time measurement method comprises the following steps:
the first is to prop open the horizontal sleeve section of each set of distance measuring device;
the rotary blades are kept at the position of the poured real-time pile top, the extension rods of the miniature electric push rods of the ranging devices are controlled to extend through the electric control device, the horizontal sleeve sections of the ranging devices are outwards spread until the outer ends of the horizontal sleeve sections at the outermost sides are in pressure connection with the hole wall;
secondly, the electric control device transmits ultrasonic waves or laser towards the outer end of the corresponding horizontal sleeve section through the ranging sensors of each ranging device, and an average value L1 m of the lengths of the ranging sensors of each ranging device from the outermost end of the horizontal sleeve section is obtained; the outermost end of the horizontal sleeve section is the hole wall of the drilling hole;
the length data of the distance measuring sensors of each set of distance measuring device stored in the electric control device from the vertical center line of the probe rod are L2 meters, and the electric control device calculates that the diameter of the pile top is 2 x (L1+L2) meters;
after all the measurement work is completed, the staff controls the extension rod of the miniature electric push rod of each set of distance measuring device to retract, and the horizontal sleeve sections of each set of distance measuring device are contracted inwards; then, the staff upwards retrieves the telescopic sleeve section, rotates the crank simultaneously, winds the wire harness on the winding shaft.
The method comprises a third step of measuring pile top height in real time, namely a step of lowering a probe rod to a poured real-time pile top position, wherein a real-time torque signal detected by a torque sensor does not fall into a torque range when a rotating blade stored in an electric control device rotates in unset concrete with a preset mark; when the real-time torque signal detected by the torque sensor falls into the torque range when the rotating blade stored in the electric control device rotates in the unset concrete with the preset mark, the electric control device turns off the red indicator lamp and turns on the green indicator lamp; after the green indicator lights are on, the staff stops the operation of lowering the telescopic sleeve sections.
The invention has the following advantages:
according to the invention, whether the bottom end of the probe rod reaches the position of the poured real-time pile top is judged through the difference of torque when the rotary blade rotates in different media (air, floating soil and unset concrete), and compared with the traditional mode of judging through experience, the accuracy is greatly improved.
The invention isolates the interference of the floating soil or water and the like by utilizing the horizontal sleeve section, and can ensure that the distance measuring sensor accurately obtains the distance between the distance measuring sensor and the wall of the borehole.
In a word, the invention can monitor the position of the bottom end of the probe rod through the change of torque, ensure the accuracy of the measurement data of the ranging sensor, and conveniently and efficiently acquire the real-time pile top height and the pile diameter, thereby more effectively controlling the construction of the cast-in-place pile.
The telescopic probe rod structure is integrally adopted, so that the operation is easy; the zero scale mark of the measuring rod is positioned at the bottom end of the measuring rod, so that the height of the vertical sleeve section at the drilling hole opening is very convenient to measure and is higher than the height of the hole opening.
Various data stored in the electric control device can be conveniently used for judging the medium where the rotary blade is located and conveniently calculating the diameter of the pile top.
The arrangement of the winding shaft and the crank is very convenient for releasing the wire harness or winding the wire harness on the winding shaft when the vertical sleeve section is telescopic.
The distance measuring device not only utilizes the advantage of higher measuring precision of the distance measuring sensor, but also eliminates the interference of substances such as floating soil, water and the like in the drilled hole through the telescopic sleeve structure, and can accurately measure the diameter of the pile top without excavation by utilizing the principle that the diameter of the drilled hole at the pile top is equal to the diameter of the pile top.
The method for measuring the pile top height and the pile diameter in real time has simple and convenient steps, can rapidly and accurately measure the pile top height and the pile top diameter, and provides reliable data for control in the construction work of the filling pile.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the distance measuring device;
FIG. 3 is a schematic diagram of a torque measurement device;
fig. 4 is an electrical schematic of the present invention.
Detailed Description
As shown in fig. 1 to 4, the probe rod device for the cast-in-place pile comprises a vertically arranged probe rod, wherein the probe rod adopts a telescopic sleeve structure and comprises a plurality of vertical sleeve sections 1 sleeved together; the bottom end of the vertical sleeve section 1 at the lowest part of the probe rod is connected with a torque measuring device 2, the torque measuring device 2 comprises a shell 3, a micro motor 4 is arranged in the shell 3, an output shaft 5 of the micro motor 4 extends downwards out of the shell 3 and is connected with a rotary blade 6, and a torque sensor 7 is arranged on the output shaft 5 of the micro motor 4; the telescopic sleeve is a conventional technology, such as the telescopic sleeve structure adopted by a tripod of a camera, and therefore the structure of the telescopic sleeve is not described in detail in the invention.
The top of the uppermost vertical sleeve section 1 of the probe rod is connected with a box body 8, the side wall of the uppermost vertical sleeve section is connected with a vertically arranged measuring rod 10 through a connecting rod 9, the measuring rod 10 is provided with scales for measuring the length, and zero scale marks of the measuring rod are positioned at the bottom end of the measuring rod 10;
the storage battery 11, the electric control device 12 and the winding shaft 13 are arranged in the box body 8, and a display screen 14 and an indicator lamp 15 are arranged on the outer wall of the box body 8; the electric control device 12 is internally provided with a memory and stores torque range data when the rotary blades 6 rotate in the air, torque range data when the rotary blades 6 rotate in soil with preset soil quality, torque range data when the rotary blades 6 rotate in uncured concrete with preset labels, length data of each vertical sleeve section 1 and length data of a distance measuring sensor from the vertical center line of the probe rod; the unit of torque is nm and the unit of length is nm. In the present invention, the torque range data may be replaced with the rotation speed range data, while the torque sensor 7 is replaced with the rotation speed sensor.
The winding shaft 13 is rotatably connected to the mounting frame 16 through a bearing, the mounting frame 16 is fixedly connected with the inner wall of the box body 8, and one end of the winding shaft 13 extends out of the box body 8 and is connected with the crank 17; the wire harness 18 is wound on the winding shaft 13, one end of the wire harness 18 extends out of the box body 8 upwards and is connected with the electric control device 12, and the wire harness 18 is fixedly connected with the top wall of the box body 8 in an adhesive or clamping manner; the other end of the wire harness 18 extends downwards into the probe rod and is connected with the miniature motor 4 and the torque sensor 7; the electric control device 12 is connected with the storage battery 11.
Two sets of distance measuring devices 19 for measuring the aperture are symmetrically connected on the left and right of the outer surface of the bottom of the vertical sleeve section 1 at the lowest part of the probe rod;
the distance measuring device 19 adopts a telescopic sleeve structure and comprises a plurality of horizontal sleeve sections 20; the ranging device 19 is arranged along the inner and outer directions by taking the direction pointing to the vertical central line of the probe rod as the inner direction and the reverse direction as the outer direction; the inner end of the innermost horizontal sleeve section 20 is provided with a ranging sensor 21 and a miniature electric push rod 22, and is provided with an air hole 23 communicated with a probe rod, the ranging sensor 21 is positioned at the center of the inner end of the innermost horizontal sleeve section 20, and an extension rod of the miniature electric push rod 22 is connected with the outer end of the outermost horizontal sleeve section 20; the vertical sleeve section 1 at the topmost end of the probe rod is communicated with the box body 8, and the box body 8 is communicated with the atmosphere, so that negative pressure or positive pressure cannot be caused by the expansion or contraction of the horizontal sleeve section 20 when the miniature electric push rod 22 acts.
The connecting wires of the miniature electric push rod 22 and the connecting wires of the ranging sensor 21 are integrated in the wire harness 18 and connected with the electric control device 12 along the wire harness 18.
The distance measuring sensor 21 is an ultrasonic distance measuring sensor or a laser distance measuring sensor.
The invention also discloses a pile top height and diameter real-time measurement method by using the probe rod device for the cast-in-place pile, which comprises a pile top height real-time measurement method and a pile diameter real-time measurement method which are sequentially carried out;
firstly, a pile top height real-time measurement method is carried out according to the following steps:
the first is sampling;
the staff can keep the soil sample in a floating state according to the soil sample of the soil of the cast-in-place pile construction site and the concrete sample of the concrete for the cast-in-place pile construction, so that the concrete sample is kept in a state before solidification after casting;
second, collecting torque range data;
suspending the rotary blade 6 in the air, starting the micro motor 4 through the electric control device 12, observing the fluctuation range of the torque measured by the torque sensor 7 through the display screen 14, inputting the fluctuation range of the torque at the moment into the electric control device 12 as torque range data when the rotary blade 6 rotates in the air, and then closing the micro motor 4;
inserting the rotary blades 6 into a soil sample, starting the micro motor 4 through the electric control device 12, observing the fluctuation range of the torque measured by the torque sensor 7 through the display screen 14, recording the fluctuation range of the torque at the moment as torque range data of the rotary blades 6 when rotating in the soil with preset soil quality into the electric control device 12, and then closing the micro motor 4;
inserting the rotary blade 6 into a concrete sample, starting the micro motor 4 through the electric control device 12, observing the fluctuation range of the torque measured by the torque sensor 7 through the display screen 14, inputting the fluctuation range of the torque at the moment into the electric control device 12 as torque range data when the rotary blade 6 rotates in the unset concrete with a preset mark, and then turning off the micro motor 4;
thirdly, lowering the probe rod to the position of the poured real-time pile top;
inserting the probe rod into the drill hole, opening the micro motor 4 through the electric control device 12, and performing the operation of lowering the telescopic sleeve sections, namely pulling the telescopic sleeve sections from bottom to top and putting the telescopic sleeve sections into the drill hole, so that the rotary blades 6 sink; when the telescopic sleeve section is lowered, the wire harness 18 on the winding shaft 13 pulls the winding shaft 13 to rotate, so that the wire harness 18 extends downwards along with the telescopic sleeve section;
during sinking of the rotary blade 6, a worker observes a real-time torque signal detected by the torque sensor 7 through the display screen 14, and when the real-time torque value falls into a torque range of the rotary blade 6 stored in the electronic control device 12 and rotating in the air, the rotary blade 6 is shown to be in a suspended state in a drill hole and does not enter a poured real-time pile top position;
when the real-time torque value falls into the torque range when the rotary blades 6 stored in the electronic control device 12 rotate in the soil body with preset soil property, the pile top is indicated to have the floating soil, the rotary blades 6 are positioned in the floating soil, and the position of the poured real-time pile top is not entered;
when the real-time torque value falls into the torque range when the rotary blade 6 stored in the electric control device 12 rotates in the unset concrete with the preset mark, the rotary blade 6 is indicated to enter the poured real-time pile top position, and at the moment, the worker stops the operation of lowering the telescopic sleeve section and turns off the micro motor 4 through the electric control device 12;
fourth, obtain the real-time height of the pile top;
after the rotary blade 6 enters the position of the poured real-time pile top, a worker makes the bottom end of the measuring rod 10 level with the ground at the hole opening of the drill hole, and measures the height of the vertical sleeve section 1 at the hole opening of the drill hole exposed to the drill hole, wherein the height is H meters, and H is a positive real number;
according to the length data of each vertical sleeve section 1, calculating the total length of the vertical sleeve section 1 at the drilling hole opening and each vertical sleeve section 1 below the vertical sleeve section 1 to be M meters, wherein M is a positive real number; M-H meters are the distance between the position of the poured real-time pile top and the drilling hole opening, namely the real-time height of the pile top;
after the real-time height of the pile top is obtained by using the pile top height real-time measurement method, the pile top diameter is measured by using the pile diameter real-time measurement method, and the pile diameter real-time measurement method comprises the following steps:
the first is to prop open the horizontal sleeve segments 20 of the sets of distance measuring devices 19;
the rotary blades 6 are kept at the position of the poured real-time pile tops, the electric control device 12 controls the extension rods of the miniature electric push rods 22 of the ranging devices 19 to extend, the horizontal sleeve sections 20 of the ranging devices 19 are outwards spread until the outer ends of the horizontal sleeve sections 20 at the outermost sides are in pressure connection with the hole walls;
secondly, the electric control device 12 emits ultrasonic waves or laser 24 towards the outer end of the corresponding horizontal sleeve section 20 through the ranging sensors 21 of each set of ranging devices 19, and obtains the average value L1 m of the lengths of the ranging sensors 21 of each set of ranging devices 19 from the outermost end of the horizontal sleeve section 20; the outermost end of the horizontal sleeve section 20 is the wall of the borehole;
the length data of the ranging sensors 21 of each set of ranging devices 19 stored in the electric control device 12 from the vertical center line of the probe rod are L2 meters, and the electric control device 12 calculates that the diameter of the pile top is 2× (L1+L2) meters;
after all the measurement work is completed, the staff controls the extension rod of the miniature electric push rod 22 of each set of distance measuring device 19 to retract, and the horizontal sleeve sections 20 of each set of distance measuring device 19 are contracted inwards; the worker then withdraws the telescoping sleeve section upwardly while rotating the crank 17 to wind the wire harness 18 around the spool 13.
The indicator lamps 15 comprise red indicator lamps 15A and green indicator lamps 15B, and when the real-time torque signal detected by the torque sensor 7 does not fall into the torque range of the rotating blade 6 stored in the electric control device 12 and rotating in the unset concrete with the preset mark number in the third step of the pile top height real-time measurement method, namely the step of lowering the probe rod to the poured real-time pile top position, the electric control device 12 turns on the red indicator lamps 15A and turns off the green indicator lamps 15B; when the real-time torque signal detected by the torque sensor 7 falls into the torque range when the rotary blade 6 stored in the electric control device 12 rotates in the unset concrete with the preset mark, the electric control device 12 turns off the red indicator lamp 15A and turns on the green indicator lamp 15B; after the green indicator light 15B is on, the worker stops the operation of lowering the telescopic sleeve section.
The red indicator light 15A and the green indicator light 15B can very visually indicate whether the rotary blade 6 has been lowered to the position of the poured real-time pile top, and when the green indicator light 15B is lit, the operator easily knows whether the rotary blade 6 has been lowered in place, thus stopping the operation of lowering the telescopic sleeve section. The red indicator light 15A and the green indicator light 15B can more conspicuously and more quickly prompt the worker of the positional information of the rotary vane 6 than the worker observes the real-time torque information displayed on the display screen 14.
The above embodiments are only for illustrating the technical solution of the present invention, and it should be understood by those skilled in the art that although the present invention has been described in detail with reference to the above embodiments: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, which is intended to be encompassed by the claims.
Claims (2)
1. The method for measuring the pile top height and the pile diameter in real time by using the probe rod device for the cast-in-place pile is characterized by comprising the following steps of: the probe rod device for the filling pile comprises a vertically arranged probe rod, wherein the probe rod adopts a telescopic sleeve structure and comprises a plurality of vertical sleeve sections; the bottom end of the vertical sleeve section at the lowest part of the probe rod is connected with a torque measuring device, the torque measuring device comprises a shell, a micro motor is arranged in the shell, an output shaft of the micro motor extends downwards out of the shell and is connected with a rotating blade, and a torque sensor is arranged on the output shaft of the micro motor;
the top of the uppermost vertical sleeve section of the probe rod is connected with a box body, the side wall of the uppermost vertical sleeve section of the probe rod is connected with a vertically arranged measuring rod through a connecting rod, scales for measuring the length are arranged on the measuring rod, and zero scale marks of the measuring rod are positioned at the bottom end of the measuring rod;
the storage battery, the electric control device and the winding shaft are arranged in the box body, and the display screen and the indicator lamp are arranged on the outer wall of the box body; the electric control device is internally provided with a memory and stores torque range data when the rotary blade rotates in the air, torque range data when the rotary blade rotates in the soil body with preset soil quality, torque range data when the rotary blade rotates in the uncured concrete with preset labels, length data of each vertical sleeve section and length data of the ranging sensor from the vertical center line of the probe rod;
the winding shaft is rotationally connected to the mounting frame, the mounting frame is fixedly connected with the inner wall of the box body, and one end of the winding shaft extends out of the box body and is connected with the crank; the wire harness is wound on the winding shaft, one end of the wire harness extends out of the box body upwards and is connected with the electric control device, and the wire harness is fixedly connected with the top wall of the box body; the other end of the wire harness extends downwards into the probe rod and is connected with the miniature motor and the torque sensor; the electric control device is connected with the storage battery;
the outer surface of the bottom of the vertical sleeve section at the lowest part of the probe rod is symmetrically connected with two sets of distance measuring devices for measuring the aperture;
the distance measuring device adopts a telescopic sleeve structure and comprises a plurality of horizontal sleeve sections; the direction pointing to the central line of the probe rod is taken as an inward direction, the reverse direction is taken as an outward direction, and the distance measuring device is arranged along the inner and outer directions; the inner end of the innermost horizontal sleeve section is provided with a ranging sensor and a miniature electric push rod, and is provided with an air hole communicated with the probe rod, the ranging sensor is positioned at the center of the inner end of the innermost horizontal sleeve section, and the extension rod of the miniature electric push rod is connected with the outer end of the outermost horizontal sleeve section;
the connecting wire of the miniature electric push rod and the connecting wire of the ranging sensor are integrated in the wire harness and are connected with the electric control device along the wire harness;
the distance measuring sensor is an ultrasonic distance measuring sensor or a laser distance measuring sensor;
the method comprises a pile top height real-time measurement method and a pile diameter real-time measurement method which are sequentially carried out;
firstly, a pile top height real-time measurement method is carried out according to the following steps:
the first is sampling;
the staff can keep the soil sample in a floating state according to the soil sample of the soil of the cast-in-place pile construction site and the concrete sample of the concrete for the cast-in-place pile construction, so that the concrete sample is kept in a state before solidification after casting;
second, collecting torque range data;
suspending the rotary blade in the air, starting the micro motor through the electric control device, observing the fluctuation range of the torque measured by the torque sensor through the display screen, inputting the fluctuation range of the torque at the moment into the electric control device as torque range data when the rotary blade rotates in the air, and then closing the micro motor;
inserting the rotary blades into a soil sample, starting the micro motor through the electric control device, observing the fluctuation range of the torque measured by the torque sensor through the display screen, inputting the fluctuation range of the torque at the moment into the electric control device as torque range data when the rotary blades rotate in the soil with preset soil quality, and then closing the micro motor;
inserting the rotary blade into a concrete sample, starting a micro motor through an electric control device, observing the fluctuation range of the torque measured by a torque sensor through a display screen, taking the fluctuation range of the torque at the moment as torque range data when the rotary blade rotates in the unset concrete with a preset mark, inputting the torque range data into the electric control device, and then closing the micro motor;
thirdly, lowering the probe rod to the position of the poured real-time pile top;
inserting the probe rod into the drill hole, opening the micro motor through the electric control device, and performing the operation of lowering the telescopic sleeve sections, namely pulling the telescopic sleeve sections from bottom to top and putting the telescopic sleeve sections into the drill hole, so that the rotary blades sink; when the telescopic sleeve section is lowered, the wire harness on the winding shaft pulls the winding shaft to rotate, so that the wire harness extends downwards along with the telescopic sleeve section;
in the sinking process of the rotary blade, a worker observes a real-time torque signal detected by a torque sensor through a display screen, and when the real-time torque value falls into a torque range of the rotary blade stored in an electric control device when rotating in the air, the rotary blade is shown to be in a suspended state in a drill hole and does not enter a poured real-time pile top position;
when the real-time torque value falls into the torque range when the rotating blades stored in the electric control device rotate in the soil body with preset soil property, the pile top is indicated to have the floating soil, the rotating blades are positioned in the floating soil, and the position of the poured real-time pile top is not entered;
when the real-time torque value falls into the torque range when the rotating blades stored in the electric control device rotate in the unset concrete with preset marks, the rotating blades are indicated to enter the poured real-time pile top position, and at the moment, a worker stops the operation of lowering the telescopic sleeve section and turns off the micro motor through the electric control device;
fourth, obtain the real-time height of the pile top;
after the rotary blade enters the position of the poured real-time pile top, a worker enables the bottom end of the measuring rod to be flush with the ground at the position of the drilling hole, and the height of the vertical sleeve section at the position of the drilling hole exposed out of the drilling hole is measured, wherein the height is H meters, and H is a positive real number;
according to the length data of each vertical sleeve section, calculating the total length of the vertical sleeve section at the drilling hole opening and each vertical sleeve section below the vertical sleeve section to be M meters, wherein M is a positive real number; M-H meters are the distance between the position of the poured real-time pile top and the drilling hole opening, namely the real-time height of the pile top;
after the real-time height of the pile top is obtained by using the pile top height real-time measurement method, the pile top diameter is measured by using the pile diameter real-time measurement method, and the pile diameter real-time measurement method comprises the following steps:
the first is to prop open the horizontal sleeve section of each set of distance measuring device;
the rotary blades are kept at the position of the poured real-time pile top, the extension rods of the miniature electric push rods of the ranging devices are controlled to extend through the electric control device, the horizontal sleeve sections of the ranging devices are outwards spread until the outer ends of the horizontal sleeve sections at the outermost sides are in pressure connection with the hole wall;
secondly, the electric control device transmits ultrasonic waves or laser towards the outer end of the corresponding horizontal sleeve section through the ranging sensors of each ranging device, and an average value L1 m of the lengths of the ranging sensors of each ranging device from the outermost end of the horizontal sleeve section is obtained; the outermost end of the horizontal sleeve section is the hole wall of the drilling hole;
the length data of the distance measuring sensors of each set of distance measuring device stored in the electric control device from the vertical center line of the probe rod are L2 meters, and the electric control device calculates that the diameter of the pile top is 2 x (L1+L2) meters;
after all the measurement work is completed, the staff controls the extension rod of the miniature electric push rod of each set of distance measuring device to retract, and the horizontal sleeve sections of each set of distance measuring device are contracted inwards; then, the staff upwards retrieves the telescopic sleeve section, rotates the crank simultaneously, winds the wire harness on the winding shaft.
2. The method for measuring pile top height and pile diameter in real time according to claim 1, wherein: the method comprises a third step of measuring pile top height in real time, namely a step of lowering a probe rod to a poured real-time pile top position, wherein a real-time torque signal detected by a torque sensor does not fall into a torque range when a rotating blade stored in an electric control device rotates in unset concrete with a preset mark; when the real-time torque signal detected by the torque sensor falls into the torque range when the rotating blade stored in the electric control device rotates in the unset concrete with the preset mark, the electric control device turns off the red indicator lamp and turns on the green indicator lamp; after the green indicator lights are on, the staff stops the operation of lowering the telescopic sleeve sections.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5099696A (en) * | 1988-12-29 | 1992-03-31 | Takechi Engineering Co., Ltd. | Methods of determining capability and quality of foundation piles and of designing foundation piles, apparatus for measuring ground characteristics, method of making hole for foundation pile such as cast-in-situ pile and apparatus therefor |
| CN200992706Y (en) * | 2006-12-01 | 2007-12-19 | 中国建筑材料科学研究总院 | Cast-in-place pile concrete casting-depth detecting device |
| CN203256733U (en) * | 2013-05-06 | 2013-10-30 | 中国建筑第八工程局有限公司 | Device for detecting pile top concrete elevation of cast-in-place pile |
| CN105604102A (en) * | 2015-12-28 | 2016-05-25 | 厦门市工程检测中心有限公司 | On-site measurement method for perpendicularity of cast-in-place concrete pile body and drilling core hole |
| CN208701771U (en) * | 2018-07-10 | 2019-04-05 | 长江岩土工程总公司（武汉） | The superfilled height detecting device of drill-pouring pile concrete |
| CN210238603U (en) * | 2019-07-05 | 2020-04-03 | 河南云平环保科技有限公司 | Probe rod device for cast-in-place pile |
-
2019
- 2019-07-05 CN CN201910603467.8A patent/CN110195448B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5099696A (en) * | 1988-12-29 | 1992-03-31 | Takechi Engineering Co., Ltd. | Methods of determining capability and quality of foundation piles and of designing foundation piles, apparatus for measuring ground characteristics, method of making hole for foundation pile such as cast-in-situ pile and apparatus therefor |
| CN200992706Y (en) * | 2006-12-01 | 2007-12-19 | 中国建筑材料科学研究总院 | Cast-in-place pile concrete casting-depth detecting device |
| CN203256733U (en) * | 2013-05-06 | 2013-10-30 | 中国建筑第八工程局有限公司 | Device for detecting pile top concrete elevation of cast-in-place pile |
| CN105604102A (en) * | 2015-12-28 | 2016-05-25 | 厦门市工程检测中心有限公司 | On-site measurement method for perpendicularity of cast-in-place concrete pile body and drilling core hole |
| CN208701771U (en) * | 2018-07-10 | 2019-04-05 | 长江岩土工程总公司（武汉） | The superfilled height detecting device of drill-pouring pile concrete |
| CN210238603U (en) * | 2019-07-05 | 2020-04-03 | 河南云平环保科技有限公司 | Probe rod device for cast-in-place pile |
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