CN113737766A - Multidimensional transient trigger type intelligent method for detecting MJS reinforcement quality - Google Patents
Multidimensional transient trigger type intelligent method for detecting MJS reinforcement quality Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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Abstract
A multidimensional transient firing type intelligent method for detecting MJS reinforcement quality comprises the following steps: (1) determining the size of the protective wall; (2) arranging a detection instrument; (3) the combination of the detection instrument hammer car and the depth-impact detector has the function of detecting the strength of the material, and the combination of the detection instrument hammer car, the guide rod, the stress wave receiver and the drill rod has the function of detecting the integrity of the material; (4) debugging an instrument; (5) detecting; (6) detecting the intensity; (7) detecting the integrity; (8) collecting data; (9) moving the next measuring point by the instrument; (10) repeating the steps (6) - (8) to complete the detection of the measuring points, wherein the detection process is a round; after the completion, the detection instrument continues to rotate to the next height for the next round; (11) data for all processes is collected and processed. The method can realize quick detection of the quality of the double indexes of the MJS reinforcement area, and has the advantages of simplicity, easy operation, convenient operation, low cost and short construction period.
Description
Technical Field
The invention relates to the field related to foundation detection technology, in particular to a multidimensional transient trigger type intelligent method for detecting MJS reinforcement quality.
Background
In the construction process of underground engineering, when the existing underground structure needs to be penetrated, the foundation of the existing building is usually reinforced by a reinforcing means, and when the foundation is reinforced by using an MJS construction method, the quality index of the reinforced area needs to be obtained, so that a basis is provided for evaluating the engineering safety risk. In order to detect the quality index of the soil body reinforced by the MJS construction method, the quality of a high-pressure jet reinforced area is often required to be detected after the reinforcement by the MJS construction method, such as the strength and integrity of the reinforced soil body. Currently, nondestructive testing methods such as a low-strain method, an ultrasonic method, a rebound method and the like are generally adopted to carry out on-site testing on a reinforced area. In the existing detection technology, the strength index of the reinforcing body is usually detected by a rebound method, and the strength and the integrity of the reinforcing body are detected by a low-strain method. However, the research and development in the aspect of MJS construction method detection are not comprehensive, so that when the quality index of an MJS construction method reinforced area is measured, large-scale and multiple times of manual measurement are needed, and the labor cost is seriously wasted, so that a detection method capable of detecting the strength index of the MJS reinforced area and the integrity of the reinforced area is needed.
Disclosure of Invention
In order to overcome the defects of poor effect, complex conversion, high cost, long construction period and the like of the existing MJS construction method reinforced area quality detection method, the invention provides a multidimensional transient trigger type intelligent method for detecting the MJS reinforced quality, which can effectively overcome the defects of the MJS construction method reinforced area quality detection method. The device can realize quick detection of the quality of the double indexes of the MJS reinforcement area, and is simple and easy to operate, convenient to operate, low in manufacturing cost and short in construction period.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a multidimensional transient firing type intelligent method for detecting MJS reinforcement quality comprises the following steps:
(1) determining the size of the protective wall: inserting guide holes in the periphery of the MJS reinforcement area, and respectively adjusting the length of the pipeline protection arm and the position of the prefabricated hole according to actual sizes according to actual engineering requirements and the size of the reinforcement area;
(2) arranging a detection instrument: firstly drilling holes with corresponding depths at detection points, arranging a protective wall and a spiral guide rod in the holes, and then rotating a detection instrument from top to bottom to reach a detection specified depth;
(3) the detection instrument, namely the combination of the hammer vehicle and the depth of impact detector, has the function of detecting the strength of materials and comprises two detection contents of transient firing and distance sensing; the detection instrument comprises a hammer vehicle, a guide rod, a stress wave receiver and a drill rod, has the function of detecting the integrity of materials, and comprises two detection contents of transient triggering stress wave receiving and ultrasonic wave transmitting;
(4) debugging an instrument: debugging instrument equipment, starting a data acquisition unit, detecting that the line connection is normal, and recording data and testing the data to be normal to start working;
(5) and (3) detection: when the detection is started, the detection instrument is rotated from one end through the spiral guide rod and slowly conveyed into the pipeline, when the detection instrument is rotated to a detection position and an angle, the telescopic device is started to enable the guide rod to extend outwards to a specified position, and the data acquisition unit records data;
(6) and (3) detecting the intensity: opening the first electromagnetic coil and the second electromagnetic coil to enable the first electromagnetic coil and the second electromagnetic coil on the two sides of the spring to be in a state of heteropolar attraction, wherein the spring stores force and the hammer car is also close to the position of the electromagnetic coils; the current direction in the electromagnetic coil II is operated to be opposite, so that the electromagnetic coil I and the electromagnetic coil II are in a state that like poles repel each other, and the hammer vehicle is ejected; the hammer vehicle bounces to the edge under the state that the spring releases potential energy, and is beaten on the MJS reinforcing body through the prefabricated hole; the emitted stress wave is finally captured by the guide rod and transmitted to the stress wave receiver;
(7) and (3) integrity detection: drilling out a drill bit from the side, extending the drill rod outwards in a segmented mode until the drill rod is completely extended, connecting an electromagnetic wave transmitter with an electromagnetic wave receiver, enabling water flow to flow into a gap, and after the gap of water quality is filled with a sound wave result, weakening a signal, capturing the signal by the sound wave receiver and transmitting data to a data collector;
(8) data collection: and recording data of the depth-hitting detector and the pressure-sensitive detection track after the hammer car rebounds. Transmitting the electronic signal to a data acquisition unit through an integrated circuit, and finally transmitting the processed data to an external computer end; recording data of the stress wave receiver and the sound wave receiver, transmitting electronic signals to a data acquisition unit through an integrated circuit, and finally transmitting the processed data to an external computer end;
(9) the instrument moves the next measuring point, when the detection instrument rotates downwards to one of the heights, the four parts in the instrument work simultaneously and detect in four different directions, and the detection is performed once when the corresponding detection instrument rotates and drops by 50 cm;
(10) repeating the steps (6) - (8) to complete the detection of the measuring points, wherein the detection process is a round; after the end, the detecting instrument continues to rotate to the next height for the next round.
(11) And collecting and processing data of all processes to obtain the average strength of the reinforced area along the MJS construction method, wherein the horizontal detection method is the same as the vertical detection method.
Further, in the step (1), the length of the pipeline protecting wall of the detection device is controlled to be 18-20 m, and 4 prefabricated holes in different directions are formed in the protecting wall sleeve every 50 cm.
Still further, the device for realizing the method comprises a threaded guide rod, a protective wall, a detecting instrument body, a hammer vehicle, a pressure sensing detection track, a depth impact detector, a spring, a guide rod, a first electromagnetic ring, a stress wave receiver, an integrated circuit, a telescopic device, a drill rod, a drill bit and a second electromagnetic ring; the bottom end of the threaded guide rod is fixed at the bottom of the hole, the protective wall is attached to the inner wall of the hole, the body of the detector is of a cylindrical steel skeleton structure, the whole detector is connected to the threaded guide rod, the pressure-sensitive detection track is fixed on the skeleton base, wheels of the hammer car are matched with the detection track, the depth striking detector is fixed at the end of the hammer car, one side of the spring is fixedly connected with the second electromagnetic ring, the guide rod passes through a middle hole of the hammer car, and the tail end of the guide rod is just connected to the stress wave receiver; the stress wave receiver and the expansion piece are fixed together and finally integrally welded on the inner wall of the machine body of the detection instrument; the first electromagnetic ring is arranged in the hammer vehicle, the other side of the spring is abutted against the hammer vehicle (the other side of the spring is not connected with the hammer vehicle), the second electromagnetic ring, the stress wave receiver and the expansion piece are fixed on the machine body, the drill rod is fixed on the inner wall of the machine body, and the outer end of the drill rod is provided with a drill bit; and the depth of impact detector is connected with the integrated circuit.
Furthermore, the intelligent device further comprises an internal rotation barrel, a clamping rail, a prefabricated hole and a cavity, the whole detection instrument body is connected to the threaded guide rod through the internal rotation barrel through bolts, the clamping rail and the protective wall are integrated, the prefabricated hole is a hole formed in the protective wall, and the cavity is a space movable chamber inside the detection instrument body, namely a space cavity in which the hammer car is ejected and runs on the rail.
Still further, the pressure-sensitive detection track comprises a track shell and a pressure-sensitive resistor.
The depth of attack detector includes soft elastic material, precision spring and dynamometer, and precision spring one end is connected with soft elastic material, and the precision spring other end is connected with the dynamometer, and the dynamometer links to each other with integrated circuit.
The integrated circuit comprises an integrated circuit shell, a signal transmitting line, a signal receiving line and a power supply line; the signal transmitting line, the signal receiving line and the power supply line are three independent lines which are not interfered with each other and are packed in the integrated circuit shell in a centralized way.
Furthermore, the drill rod comprises a first drill rod, a second drill rod, a third drill rod, a support, an electromagnetic wave emitter, a crack, an electromagnetic wave receiver, an integrated circuit, a water flow conveying pipeline, an electromagnetic wave and a hole, wherein the first drill rod is connected to the support, the support is welded on the inner wall of the machine body, the water flow conveying pipeline is arranged in the drill rod, the second drill rod is in sliding connection with the first drill rod, the third drill rod is also in sliding connection with the second drill rod, and a hinged joint is arranged between the three drill rods; before working, the third drill rod and the second drill rod are respectively contracted in the second drill rod and the first drill rod. The electromagnetic wave transmitter and the electromagnetic wave receiver are welded on the inner ring of the drill rod. The integrated circuit is attached to the inside of the drill rod, the holes are formed in the second drill rod and the third drill rod, and the inside of the integrated circuit is communicated with a water flow conveying pipeline.
The invention has the following beneficial effects:
1) the multi-dimensional strength and integrity detection system has the advantages that the structure is simple, the multi-dimensional detection is realized, the strength and integrity of a detected object can be detected only through one set of system, the strength and integrity of a reinforced area can be detected by 360 degrees, and the detection range is greatly enlarged. The detection device and the detection process are greatly simplified, namely integrity detection is carried out on the MJS reinforcement area through stress waves generated by transient firing, and corresponding strength indexes can be obtained through the rebound distance of the hammer car after hammering and the force measuring device at the head of the hammer car. The detection drill rod part judges the crack condition of the reinforced area by detecting the absorption amount of the electromagnetic waves by the conductive liquid.
2) The cost is low, and the function is complete: the expense that can greatly save the cost through this integrated device, can realize detecting the different degree of depth and different position and strengthen the quality of solid, and the relevant parameter of accessible adjusting device detects different reinforced materials, has greatly saved the cost.
3) Intelligent operation: the method is convenient to operate, and the strength index and the integrity thereof can be obtained by drilling the steel plate into the ground, controlling the steel plate by a computer and simultaneously receiving and processing data.
Drawings
Fig. 1 is a front view of a multi-dimensional transient-fired smart device for detecting MJS reinforcement quality.
Fig. 2 is a cross-sectional view of a multi-dimensional transient-fired smart device for detecting MJS reinforcement quality.
Figure 3 is a view of the device prior to transient firing,
FIG. 4 is a diagram of the device after transient firing.
FIG. 5 is a detail view of a portion of the hammer car.
Fig. 6 is one of the ultrasonic testing part workflows.
Fig. 7 is a second workflow of the ultrasonic testing part.
Fig. 8 is a third workflow of the ultrasonic testing part.
FIG. 9 is a spatial display view of the detection apparatus.
FIG. 10 is a top view of the detection instrument.
Fig. 11 is a detailed view of the depth of impact detector.
Fig. 12 is a detailed integrated circuit diagram.
Fig. 13 is a detailed view of the probe track.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 13, a multidimensional transient firing type intelligent method for detecting the reinforcement quality of MJS has a buried depth of about 20.7m and a line spacing of about 16.3m in a certain underground station project. The shield tunnel has an outer diameter of 6.2m, an inner diameter of 5.5m and a segment ring width of 1.2m, is connected with an existing station, and passes through a bottom plate of the existing station downwards, and the minimum clear distance is 4.2 m. And (4) utilizing the diaphragm walls with the structures on two sides, adopting the jet grouting piles to reinforce and then vertically excavating. The project adopts MJS reinforcement to reduce the influence of underpass tunnels on the existing underground structure. However, for the project, the area reinforced by the MJS construction method needs to be monitored in real time to ensure the safety of constructors and existing stations. The quality index of the reinforced area of the MJS construction method can be detected by using the device for detecting the quality index of the reinforced area.
The method comprises the following steps:
(1) the dimensions of the retaining wall are determined. Holes are inserted in the periphery of the MJS reinforced area. According to actual engineering requirements and the size of a reinforced area, the length of the pipeline protection arm and the position of the prefabricated hole are respectively adjusted according to actual sizes, the length of the pipeline protection wall 2 of the detection device in the embodiment can be controlled to be about 18-20 meters, and 4 prefabricated holes 15 in different directions exist in the protection wall sleeve 2 every 50 cm.
(2) And arranging a detection instrument. The hole with the corresponding depth is drilled in the detection point position by using a conventional method, the protective wall 2 and the spiral guide rod 1 are arranged in the hole, and then the detection instrument 3 is rotated from top to bottom to reach the detection specified depth.
(3) The detection instrument, namely the hammer vehicle 4 and the depth of impact detector 6 are combined, has the function of detecting the strength of materials, and mainly comprises two detection contents of transient firing and distance sensing inside. The detection instrument hammer car 4, the guide rod 8, the stress wave receiver 10 and the drill rod 13 are combined, the function of detecting the integrity of materials is achieved, and the interior of the detection instrument hammer car mainly contains detection contents of two parts, namely transient triggering stress wave receiving and ultrasonic wave transmitting.
(4) And (6) debugging the instrument. The instrument equipment is debugged, instruments such as the data acquisition unit 16 and the like are started, the detection line is normally connected, and the operation can be started after the data recording test is normal.
(5) And (6) detecting. When the detection is started, the detection instrument 3 is rotated from one end through the spiral guide rod 1 and slowly fed into the pipeline 2, and when the detection instrument is rotated to a detection position and an angle, the telescopic device 12 is started to enable the guide rod 8 to extend outwards to a specified position. Data collector 16 records data.
(6) And (6) detecting the intensity. And opening the first electromagnetic coil 9 and the second electromagnetic coil 22 to enable the first electromagnetic coil 9 and the second electromagnetic coil 22 on the two sides of the spring to be in a state of opposite poles attracting each other, so that the spring 7 stores force, and the hammer car 4 is also close to the position of the electromagnetic coil 22. The current direction in the second electromagnetic coil 22 is operated to be opposite, so that the first electromagnetic coil 9 and the second electromagnetic coil 22 are in a state of like poles repelling each other, and the hammer car 4 is ejected. The hammer carriage 4, in the state of the spring 7 releasing the potential energy, bounces off to the edge and strikes the MJS reinforcement through the preformed hole 19. The emitted stress wave is finally captured by the guide rod 8 and transmitted to the stress wave receiver 10.
(7) And (6) integrity detection. The drill bit 14 is drilled from the side and the drill rod 1301 is extended in sections out until 1302 and 1303 are fully extended. Reference numeral 1308 denotes an integrated circuit, which connects the electromagnetic wave transmitter 1305 and the electromagnetic wave receiver 1307. 1309 is a water flow delivery conduit through 1311 into the gap 1306. after the acoustic results fill the gap in water quality, the signal 1310 is attenuated and captured by the acoustic receiver 1307 and the data is passed through 1308 to the data collector 16.
(8) And (6) collecting data. At the end of a round, data of the depth of impact detector 6 and the pressure-sensitive detection track 5 after the hammer carriage 4 rebounds are recorded. The electronic signals are transmitted to the data collector 16 through the integrated circuit 11, and finally the processed data are transmitted to an external computer. Data are recorded for the stress wave receiver 10 and the acoustic wave receiver 1307. The electronic signals are transmitted to the data collector 16 through the integrated circuit 11, and finally the processed data are transmitted to an external computer.
(9) The instrument moves the next station. When the detecting instrument 3 rotates downwards to one of the heights, the four parts inside the detecting instrument work simultaneously and detect in four different directions, and the detecting instrument performs detection once when the corresponding detecting instrument 3 rotates and descends by 50 cm.
(10) And (5) repeating the steps (6) to (8) to complete the station detection, wherein the detection process is a round. After that, the detecting instrument 3 continues to rotate to the next height for the next round.
(11) And collecting and processing data of all processes to obtain the average strength of the reinforced area of the MJS construction method along the line, wherein the horizontal detection method is the same as the vertical detection method.
The multidimensional transient percussion type intelligent device for detecting the MJS reinforcement quality, which realizes the method of the embodiment, comprises a threaded guide rod 1, a protective wall 2, a detecting instrument body 3, a hammer car 4, a pressure-sensitive detection track 5, a depth-of-attack detector 6, a spring 7, a guide rod 8, a first electromagnetic ring 9, a stress wave receiver 10, an integrated circuit 11, a telescopic device 12, a drill rod 13, a drill bit 14 and a second electromagnetic ring 22;
the bottom end of the threaded guide rod 1 is fixed at the bottom of the hole, the protective wall 2 is attached to the inner wall of the hole, the detection instrument body 3 is of a cylindrical steel skeleton structure, the whole detection instrument body 3 is connected to the threaded guide rod 1, the pressure sensing detection track 5 is fixed on the skeleton base, wheels of the hammer car 4 are matched with the detection track 5, the depth hitting detector 6 is fixed at the end of the hammer car 4, one side of the spring 7 is fixedly connected with the electromagnetic ring II 22, the guide rod 8 passes through a middle hole of the hammer car 4, and the tail end of the guide rod is rigidly connected to the stress wave receiver 10; the stress wave receiver 10 and the expansion piece 12 are fixed together and finally integrally welded on the inner wall of the detection instrument body 3; the first electromagnetic ring 9 is arranged in the hammer car 4, the other side of the spring 7 is abutted against the hammer car 4 (the other side of the spring 7 is not connected with the hammer car 4), the second electromagnetic ring 22, the stress wave receiver 10 and the expansion piece 12 are fixed on the machine body 3, the drill rod 13 is fixed on the inner wall of the machine body 3, and the outer end of the drill rod 13 is provided with a drill bit 14; the depth of impact detector 6 is connected to the integrated circuit 11.
The intelligent device also comprises an internal rotation barrel 17, a clamping rail 18, a prefabricated hole 19 and a cavity 20, wherein the integral detection instrument body 3 is connected to the threaded guide rod 1 through the internal rotation barrel 17 through bolts, the clamping rail 18 and the protective wall 2 are integrated, and the prefabricated hole 19 is a hole formed in the protective wall 2.
The pressure-sensitive detection track 5 includes a track housing 501 and a pressure-sensitive resistor 502.
The depth of impact detector 6 includes soft elastic material 601, precision spring 602 and dynamometer 603, and precision spring 602 one end is connected with soft elastic material 601, and precision spring 602 other end is connected with dynamometer 603, and dynamometer 603 links to each other with integrated circuit 11.
The integrated circuit 11 comprises an integrated circuit housing 1101, a signal transmitting line 1102, a signal receiving line 1103 and a power supply line 1104;
the drill pipe 13 comprises a first drill pipe 1301, a second drill pipe 1302, a third drill pipe 1303, a support 1304, an electromagnetic wave emitter 1305, a crack 1306, an electromagnetic wave receiver 1307, an integrated circuit 1308, a water flow conveying pipeline 1309, electromagnetic waves 1310 and holes 1311, wherein the first drill pipe 1301 is connected to the support 1304, the support 1304 is welded to the inner wall of the machine body 3, the water flow conveying pipeline 1309 is arranged in the drill pipe 13, and the electromagnetic wave emitter 1305 and the electromagnetic wave receiver 1307 are welded to the inner ring of the drill pipe 13.
The threaded guide rod 1 is made of steel body materials, and the protective wall 2 is made of transparent PVC pipes.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, which are intended for purposes of illustration only. The scope of the present invention should not be construed as being limited to the particular forms set forth in the examples, but rather as being defined by the claims and the equivalents thereof which can occur to those skilled in the art upon consideration of the present inventive concept.
Claims (8)
1. A multi-dimensional transient-fired intelligent method for detecting MJS consolidation quality, the method comprising the steps of:
(1) determining the size of the protective wall: inserting guide holes in the periphery of the MJS reinforcement area, and respectively adjusting the length of the pipeline protection arm and the position of the prefabricated hole according to actual sizes according to actual engineering requirements and the size of the reinforcement area;
(2) arranging a detection instrument: firstly drilling holes with corresponding depths at detection points, arranging a protective wall and a spiral guide rod in the holes, and then rotating a detection instrument from top to bottom to reach a detection specified depth;
(3) the detection instrument, namely the combination of the hammer vehicle and the depth of impact detector, has the function of detecting the strength of materials and comprises two detection contents of transient firing and distance sensing; the detection instrument comprises a hammer vehicle, a guide rod, a stress wave receiver and a drill rod, has the function of detecting the integrity of materials, and comprises two detection contents of transient triggering stress wave receiving and ultrasonic wave transmitting;
(4) debugging an instrument: debugging instrument equipment, starting a data collector, detecting a normal connection of a line, and recording data to start working after normal test;
(5) and (3) detection: when the detection is started, the detection instrument is rotated from one end through the spiral guide rod and slowly conveyed into the pipeline, when the detection instrument is rotated to a detection position and an angle, the telescopic device is started to enable the guide rod to extend outwards to a specified position, and the data acquisition unit records data;
(6) and (3) detecting the intensity: opening the first electromagnetic coil and the second electromagnetic coil to enable the first electromagnetic coil and the second electromagnetic coil on the two sides of the spring to be in a state of heteropolar attraction, wherein the spring stores force and the hammer car is also close to the position of the electromagnetic coils; the current direction in the electromagnetic coil II is operated to be opposite, so that the electromagnetic coil I and the electromagnetic coil II are in a state that like poles repel each other, and the hammer vehicle is ejected; the hammer vehicle bounces to the edge under the state that the spring releases potential energy, and is beaten on the MJS reinforcing body through the prefabricated hole; the emitted stress wave is finally captured by the guide rod and transmitted to the stress wave receiver;
(7) and (3) integrity detection: drilling out a drill bit from the side, extending the drill rod outwards in a segmented mode until the drill rod is completely extended, connecting an electromagnetic wave transmitter with an electromagnetic wave receiver, enabling water flow to flow into a gap, and after the gap of water quality is filled with a sound wave result, weakening a signal, capturing the signal by the sound wave receiver and transmitting data to a data collector;
(8) data collection: and recording data of the depth-hitting detector and the pressure-sensitive detection track after the hammer car rebounds. Transmitting the electronic signal to a data acquisition unit through an integrated circuit, and finally transmitting the processed data to an external computer end; recording data of the stress wave receiver and the sound wave receiver, transmitting electronic signals to a data acquisition unit through an integrated circuit, and finally transmitting the processed data to an external computer end;
(9) the instrument moves the next measuring point, when the detection instrument rotates downwards to one of the heights, the four parts in the instrument work simultaneously and detect in four different directions, and the detection is performed once when the corresponding detection instrument rotates and drops by 50 cm;
(10) repeating the steps (6) - (8) to complete the detection of the measuring points, wherein the detection process is a round; after the completion, the detection instrument continues to rotate to the next height for the next round;
(11) and collecting and processing data of all processes to obtain the average strength of the reinforced area along the MJS construction method, wherein the horizontal detection method is the same as the vertical detection method.
2. The multi-dimensional transient-triggered intelligent method for detecting the reinforcement quality of the MJS, as claimed in claim 1, wherein in step (1), the length of the pipeline retaining wall of the detection device is controlled to 18-20 m, and 4 prefabricated holes in different directions exist in the retaining wall sleeve every 50 cm.
3. The multidimensional transient firing type intelligent method for detecting the MJS reinforcement quality as recited in claim 1 or 2, wherein the intelligent device for realizing the method comprises a threaded guide rod, a protective wall, a detection instrument body, a hammer truck, a pressure detection track, a depth of impact detector, a spring, a guide rod, a first electromagnetic ring, a stress wave receiver, an integrated circuit, a telescopic device, a drill rod, a drill bit and a second electromagnetic ring; the bottom end of the threaded guide rod is fixed at the bottom of the hole, the protective wall is attached to the inner wall of the hole, the body of the detector is of a cylindrical steel skeleton structure, the whole detector is connected to the threaded guide rod, the pressure-sensitive detection track is fixed on the skeleton base, wheels of the hammer car are matched with the detection track, the depth striking detector is fixed at the end of the hammer car, one side of the spring is fixedly connected with the second electromagnetic ring, the guide rod passes through a middle hole of the hammer car, and the tail end of the guide rod is just connected to the stress wave receiver; the stress wave receiver and the expansion piece are fixed together and finally integrally welded on the inner wall of the machine body of the detection instrument; the first electromagnetic ring is arranged in the hammer vehicle, the other side of the spring is abutted against the hammer vehicle (the other side of the spring is not connected with the hammer vehicle), the second electromagnetic ring, the stress wave receiver and the expansion piece are fixed on the machine body, the drill rod is fixed on the inner wall of the machine body, and the outer end of the drill rod is provided with a drill bit; and the depth of impact detector is connected with the integrated circuit.
4. The multi-dimensional transient firing intelligent method for detecting the MJS reinforcement quality as claimed in claim 3, wherein the intelligent device further comprises an internal rotation barrel, a clamping rail, a prefabricated hole and a chamber, the whole detecting instrument body is connected to the threaded guide rod through the internal rotation barrel bolt, the clamping rail and the guard wall are integrated, the prefabricated hole is a hole formed in the guard wall, and the chamber is a space moving chamber inside the detecting instrument body, namely a space chamber in which the hammer car is ejected and runs on the rail.
5. The multi-dimensional transient firing intelligent method for detecting MJS reinforcement quality of claim 3, wherein the pressure sensing probe track comprises a track housing and a pressure sensing resistor.
6. The multi-dimensional transient shot intelligent method for testing MJS reinforcement quality as claimed in claim 3, wherein said depth shot detector comprises a soft elastic material, a precision spring and a dynamometer, wherein one end of the precision spring is connected with the soft elastic material, the other end of the precision spring is connected with the dynamometer, and the dynamometer is connected with the integrated circuit.
7. The multi-dimensional transient firing intelligent method for detecting MJS reinforcement quality as set forth in claim 3, wherein said integrated circuit comprises an integrated circuit housing, a signal transmitting line, a signal receiving line and a power supply line.
8. The multi-dimensional transient percussion type intelligent method for detecting the MJS reinforcement quality as claimed in claim 3, wherein the drill rod comprises a first drill rod, a second drill rod, a third drill rod, a support, an electromagnetic wave emitter, a crack, an electromagnetic wave receiver, an integrated circuit, a water flow conveying pipeline, an electromagnetic wave and a hole, the first drill rod is connected to the support, the support is welded to the inner wall of the machine body, the water flow conveying pipeline is arranged in the drill rod, the second drill rod is in sliding connection with the first drill rod, the third drill rod is also in sliding connection with the second drill rod, and hinge joints are arranged between the three drill rods; before the operation, the drill rod III and the drill rod II are respectively contracted in the drill rod II and the drill rod I, the electromagnetic wave emission instrument and the receiving instrument are welded on the inner ring of the drill rod, the integrated circuit is attached inside the drill rod, the holes are the holes in the drill rod II and the drill rod III, and the inside of the drill rod II and the drill rod III is communicated with a water flow conveying pipeline.
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| JP2006153505A (en) * | 2004-11-25 | 2006-06-15 | Fujita Corp | Detection method of internal cracking of structure |
| JP2010271116A (en) * | 2009-05-20 | 2010-12-02 | Applied Research Kk | Blow hammer for diagnosis of integrity, and method for diagnosis of integrity in concrete structure using the same |
| CN105887940A (en) * | 2014-11-13 | 2016-08-24 | 中国建筑科学研究院 | Double-speed low-strain method for detecting integrity of existing pile foundation by adopting excitation in pile body |
| CN104314113A (en) * | 2014-11-16 | 2015-01-28 | 张巧侠 | Low-strain detector of underwater low-resistance pile foundation with hook pile structure |
| CN111042216A (en) * | 2018-10-15 | 2020-04-21 | 广州市市政工程试验检测有限公司 | Comprehensive detection method for integrity and bearing characteristics of existing building foundation pile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114411677A (en) * | 2021-12-24 | 2022-04-29 | 中铁四局集团有限公司 | Multidimensional transient trigger type intelligent device for detecting MJS (MJS) reinforcement quality |
| CN114411677B (en) * | 2021-12-24 | 2023-12-19 | 中铁四局集团有限公司 | Multi-dimensional transient firing intelligent device for detecting reinforcement quality of MJS |
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