CN216816690U - Grouting sleeve and grouting fullness detection device - Google Patents
Grouting sleeve and grouting fullness detection device Download PDFInfo
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- CN216816690U CN216816690U CN202122617713.0U CN202122617713U CN216816690U CN 216816690 U CN216816690 U CN 216816690U CN 202122617713 U CN202122617713 U CN 202122617713U CN 216816690 U CN216816690 U CN 216816690U
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Abstract
The utility model relates to the technical field of assembly type buildings and discloses a grouting sleeve and a grouting fullness detection device. The grouting sleeve comprises a sleeve body and a distributed optical fiber sensor, a grouting cavity for containing slurry is formed in the sleeve body, and a grouting hole and a slurry outlet hole which are communicated with the grouting cavity are formed in the sleeve body; distributed optical fiber sensor along the extending direction spiral of sleeve body set up on the inner wall of sleeve body and its one end stretches out outside the sleeve body, optical fiber sensor is used for detecting the state of grout intracavity thick liquids and changes the state information of thick liquids into light signal. The grouting sleeve and the grouting fullness detection device provided by the utility model can be used for detecting the fullness of the slurry in the sleeve body, and have the advantages of good detection effect, high reliability, high precision, accurate defect positioning and no damage to the structure of the sleeve body in the detection process.
Description
Technical Field
The utility model relates to the technical field of assembly type buildings, in particular to a grouting sleeve and a grouting fullness detection device.
Background
The grouting sleeve connection is a structural connection mode widely applied to assembly type reinforced concrete structural engineering, and the technology realizes the steel bar connection through the special grouting sleeve and the high-strength non-shrinkage grouting material, and has the advantages of quick construction, simple stress, small additional stress, wide application range and the like. In the grouting sleeve connection, the plumpness of cement-based grouting directly influences the quality and the safety of the fabricated concrete structure, and if the grouting inside the grouting sleeve is not plump, the connection of reinforcing steel bars cannot reach the expected performance, so that serious potential safety hazards of the structure can be brought.
The existing grouting fullness detection methods mainly comprise a coring detection method, an ultrasonic detection method, a ray method and the like. The detection method is complex, the detection precision is limited, or the structure is damaged to a certain extent in the detection process, the position and the size of the defect cannot be accurately measured, and the expected effect is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a grouting sleeve and a grouting fullness detection device, and the grouting sleeve and the grouting fullness detection device can solve the technical problems of poor detection effect and low precision of the existing grouting fullness detection device and detection method.
To solve the above problems, in a first aspect, the present invention provides a grout sleeve, comprising:
the sleeve comprises a sleeve body, wherein a grouting cavity for containing slurry is formed in the sleeve body, and a grouting hole and a slurry outlet hole which are communicated with the grouting cavity are formed in the sleeve body;
the distributed optical fiber sensor is spirally arranged on the inner wall of the sleeve body along the extending direction of the sleeve body, one end of the distributed optical fiber sensor extends out of the sleeve body, and the distributed optical fiber sensor is used for detecting the state of the slurry in the grouting cavity and converting the state information of the slurry into an optical signal.
In one embodiment, the distributed optical fiber sensor is a distributed optical fiber strain sensor, and the state information of the slurry is pressure information of the slurry; or, the distributed optical fiber sensor is a distributed temperature sensor, and the state information of the slurry is temperature information of the slurry.
In an embodiment, a spiral accommodating groove is formed on an inner wall of the sleeve body, and the distributed optical fiber sensor is disposed in the spiral accommodating groove.
In one embodiment, the distributed optical fiber sensor is fixed on the inner wall of the sleeve body through epoxy resin structural glue.
In an embodiment, the grout outlet is located above the grout hole, and one end of the distributed optical fiber sensor, which is close to the top of the sleeve body, extends out of the sleeve body from the grout outlet.
In conclusion, the grouting sleeve provided by the utility model has the advantages that the distributed optical fiber sensors are arranged on the inner wall of the sleeve body and are spirally arranged along the extending direction of the sleeve body, so that the grouting sleeve can detect the state of internal slurry by means of the structure of the grouting sleeve, further the slurry fullness is judged, the detection effect is good, the precision is high, the defect is accurately positioned, and the structure of the grouting sleeve cannot be damaged in the detection process.
In a second aspect, the present invention provides a grouting fullness detection device, configured to detect a fullness of slurry in a sleeve body, where a grouting cavity for accommodating slurry is formed in the sleeve body, and a grouting hole and a grout outlet, which are communicated with the grouting cavity, are formed in the sleeve body, and the grouting fullness detection device includes:
the distributed optical fiber sensor is spirally arranged on the inner wall of the sleeve body along the extension direction of the sleeve body, one end of the distributed optical fiber sensor extends out of the sleeve body, and the distributed optical fiber sensor is used for detecting the state of the slurry in the grouting cavity, converting the state information of the slurry into an optical signal and outputting the optical signal;
the distributed optical fiber demodulator is connected with the distributed optical fiber sensor and used for acquiring an optical signal output by the distributed optical fiber sensor, analyzing the optical signal into an electric signal and outputting the electric signal;
and the data analyzer is connected with the distributed optical fiber demodulator and used for acquiring the electric signal output by the distributed optical fiber demodulator and analyzing the fullness of the slurry in the sleeve body according to the electric signal.
In one embodiment, the distributed optical fiber sensor is a distributed optical fiber strain sensor, and the state information of the slurry is pressure information of the slurry; or, the distributed optical fiber sensor is a distributed temperature sensor, and the state information of the slurry is temperature information of the slurry.
In an embodiment, the grouting fullness detecting device further includes a connector and a transmission cable, the connector is connected to one end of the distributed optical fiber sensor extending out of the sleeve body, one end of the transmission cable is connected to the connector, and the other end of the transmission cable is connected to the distributed optical fiber demodulator.
In an embodiment, a spiral accommodating groove is formed on an inner wall of the sleeve body, and the distributed optical fiber sensor is disposed in the spiral accommodating groove.
In one embodiment, the distributed optical fiber sensor is fixed on the inner wall of the sleeve body through epoxy resin structural adhesive.
The grouting fullness detection device provided by the utility model can be used in combination with the sleeve body, can be used for detecting the fullness of slurry in the sleeve body, and has the advantages of good detection effect, high precision, accurate defect positioning and no damage to the structure of the sleeve body in the detection process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a grouting sleeve according to an embodiment of the present invention;
FIG. 2 is an enlarged view of the structure shown in A in FIG. 1;
fig. 3 is a schematic structural diagram of a grouting fullness detection device according to an embodiment of the present invention.
Description of the main element symbols:
100. grouting a sleeve;
200. prefabricating a wall;
300. grouting fullness detection device;
1. a sleeve body; 11. a grouting cavity; 12. grouting holes; 13. a slurry outlet; 14. mounting holes; 15. a spiral receiving groove; 2. a distributed optical fiber sensor; 3. reinforcing steel bars; 4. a distributed optical fiber demodulator; 5. a data analyzer; 6. a joint; 7. a transmission cable.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In a first aspect, and with reference to fig. 1-3, the present invention provides a grout sleeve 100 suitable for use in the field of prefabricated construction. As shown in fig. 3, the grout sleeve 100 may be installed in a prefabricated wall 200 for connecting prefabricated parts such as reinforcing bars 3.
The grouting sleeve 100 provided by the utility model comprises a sleeve body 1 and a distributed optical fiber sensor 2. As shown in fig. 1, a grouting cavity 11 for containing slurry is formed in the sleeve body 1, and a grouting hole 12 and a grout outlet 13 which are communicated with the grouting cavity 11 are formed in the sleeve body 1. The sleeve body 1 can be in a hollow cylindrical shape, the grouting hole 12 is used for grouting into the grouting cavity 11, the grout outlet 13 is used for discharging air and redundant grout in the grouting cavity 11, and optionally, the grouting hole 12 and the grout outlet 13 are respectively close to two opposite ends of the sleeve body 1. The distributed optical fiber sensor 2 is spirally arranged on the inner wall of the sleeve body 1 along the extending direction of the sleeve body 1, one end of the distributed optical fiber sensor extends out of the sleeve body 1, and the distributed optical fiber sensor 2 is used for detecting the state of the slurry in the grouting cavity 11 and converting the state information of the slurry into an optical signal.
As shown in fig. 1 and 3, the sleeve body 1 is further provided with a mounting hole 14 communicated with the grouting cavity 11, when the grouting sleeve 100 is used for connecting the reinforcing steel bars 3, the reinforcing steel bars 3 to be connected can be pre-installed into the grouting cavity 11 of the sleeve body 1 through the mounting hole 14, then the grouting hole 12 is used for injecting the slurry into the grouting cavity 11 and enabling the slurry to be embedded into the reinforcing steel bars 3, the reinforcing steel bars 3 and the sleeve body 1 can be fixedly connected after the slurry is hardened, and then the reinforcing steel bars 3 can be connected.
The grouting sleeve 100 provided by the utility model is used for connecting prefabricated components such as a steel bar 3 and the like, can be matched with a distributed optical fiber demodulator 4 and a data analyzer 5 for use, and can detect the fullness of slurry in the sleeve body 1 after grouting is finished. Specifically, be equipped with distributed optical fiber sensor 2 on the inner wall of sleeve body 1, behind the grout cavity 11 interior grout, the thick liquids acts on distributed optical fiber sensor 2, because in the thick liquids hardening process, its temperature and meeting an emergency all can change, like this, utilize distributed optical fiber sensor 2 detectable thick liquids state change and can convert this partial information into optical signal output. Further, the distributed optical fiber sensor 2 is spirally arranged on the inner wall of the sleeve body 1 along the extending direction of the sleeve body 1, so that the distributed optical fiber sensor 2 is wide in covering range and large in detection range, and the state of the slurry at each position in the grouting cavity 11 can be detected by using one distributed optical fiber sensor 2. Further, the one end of distributed optical fiber sensor 2 stretches out outside sleeve body 1, after the grout is accomplished, be connected to distributed optical fiber sensor 2 on distributed optical fiber demodulator 4 and data analysis appearance 5, utilize distributed optical fiber demodulator 4 can resolve the light signal that contains thick liquids status information of distributed optical fiber sensor 2 output and turn into the signal of telecommunication with it, and through reaching data analysis appearance 5, carry out analysis and calculation to the demodulation data of distributed optical fiber demodulator 4 output, thereby can analyze out the plumpness of the thick liquids in grout sleeve 100. In summary, according to the grouting sleeve 100 provided by the utility model, the distributed optical fiber sensors 2 are installed on the inner wall of the sleeve body 1, and the distributed optical fiber sensors 2 are spirally arranged along the extending direction of the sleeve body 1, so that the grouting sleeve 100 can detect the internal slurry state by means of the self structure, further judge the slurry fullness, and has the advantages of good detection effect, high precision, accurate defect positioning and no damage to the self structure of the grouting sleeve 100 in the detection process.
The distributed optical fiber sensor 2 adopts a unique distributed optical fiber detection technology, arranges the sensing optical fibers along the field, can simultaneously obtain the spatial distribution of the detected field and the change information along with the time, and has good detection effect and high precision. In the grouting sleeve 100 provided by the present invention, the type of the distributed optical fiber sensor 2 and the type of the detected status information of the slurry are not unique.
In one embodiment, the distributed optical fiber sensor 2 is a distributed optical fiber strain sensor, and the state information of the slurry is pressure information of the slurry. The distributed optical fiber strain sensor can be used for detecting strain change of slurry in the grouting cavity 11, and expansion degree information of the slurry at each position in the grouting cavity 11 can be determined according to the strain change of the slurry, so that the slurry plumpness can be determined, and the defect position can be accurately positioned.
In one embodiment, the distributed optical fiber sensor 2 is a distributed temperature sensor, and the state information of the slurry is temperature information of the slurry. The distributed temperature sensor can be used for detecting the temperature change of the slurry in the grouting cavity 11, the grouting condition of the slurry in the grouting cavity 11 and the grouting level information of the slurry at each position can be determined according to the temperature change of the slurry, and then the slurry plumpness can be determined and the defect position can be accurately positioned.
It should be noted that, according to the type of the distributed optical fiber sensor 2, the type of the distributed optical fiber demodulator 4 used in combination is also different.
In an embodiment, as shown in fig. 1 and fig. 2, a spiral receiving groove 15 is formed on an inner wall of the sleeve body 1, and the distributed optical fiber sensor 2 is disposed in the spiral receiving groove 15. The spiral accommodating groove 15 extends spirally along the inner wall of the cavity, and two ends of the spiral accommodating groove 15 are respectively adjacent to the grouting hole 12 and the grout outlet hole 13, so as to ensure the coverage and detection range of the distributed optical fiber sensor 2. By adopting the design, the distributed optical fiber sensor 2 is convenient to fix, the falling and damage risks of the distributed optical fiber sensor 2 in the grouting process are reduced, and the reliability is high. In addition, the distributed optical fiber sensor 2 is disposed in the spiral receiving groove 15, so that the slurry receiving amount of the grouting cavity 11 can be ensured, and the connection strength of the grouting sleeve 100 can be ensured.
To improve the reliability of the grout sleeve 100, in an embodiment, the distributed optical fiber sensor 2 is fixed on the inner wall of the sleeve body 1 by epoxy structural glue. The distributed optical fiber sensor 2 can be fixed at a preset position by utilizing the epoxy resin structural adhesive, so that the falling and damage risks of the distributed optical fiber sensor 2 in the grouting process can be further reduced, and the use and detection effects of the distributed optical fiber sensor 2 can be ensured. In addition, the epoxy structural adhesive is strong in adhesive force, good in temperature resistance, oil resistance, stability and medium resistance and capable of bearing strong impact and vibration, the distributed optical fiber sensor 2 is fixed by the epoxy structural adhesive, the fixing effect is good, and failure is not prone to occurring.
It can be understood that, in some embodiments, on the premise that the usage effect of the distributed optical fiber sensor 2 is not affected, the distributed optical fiber sensor 2 may be further fixed in the spiral receiving groove 15 by using a fixing member such as a fixing ring, or directly fixed on the inner wall surface of the sleeve body 1, which may be specifically designed according to actual situations, and is not limited herein.
In one embodiment, the distributed optical fiber sensor 2 is externally wrapped with a layer of fiber-reinforced composite material. With the above design, the damage resistance and durability of the distributed optical fiber sensor 2 can be improved, and thus the reliability of the distributed optical fiber sensor 2 and the grouting sleeve 100 can be further improved.
In an embodiment, as shown in fig. 1, the grout outlet 13 is located above the grout hole 12, and one end of the distributed optical fiber sensor 2 close to the top of the sleeve body 1 extends out of the sleeve body 1 through the grout outlet 13. In addition, the distributed optical fiber sensor 2 is led out from the slurry outlet hole 13, so that grouting is facilitated, and slurry is not easy to leak.
Further, as shown in fig. 1, when the distributed optical fiber sensor 2 is led out from the grout outlet 13, the distributed optical fiber sensor 2 is disposed to be attached to the wall surface of the sleeve body 1. In addition, in order to improve the reliability of the grouting sleeve 100, the length of the distributed optical fiber sensor 2 led out of the sleeve body 1 is not too long, and the specific length is designed according to the connection requirement.
It can be understood that, in some embodiments, a through hole may be further designed on the sleeve body 1 at a position avoiding the grouting hole 12 and the grout outlet 13, and the distributed optical fiber sensor 2 is led out from the through hole, which may be specifically designed according to actual situations, and is not limited herein.
In summary, the grouting sleeve 100 provided by the utility model is provided with the distributed optical fiber sensor 2, so that the slurry state in the grouting cavity 11 can be conveniently detected, the slurry fullness can be judged according to the slurry state, the detection effect is good, the accuracy is high, and the structure of the grouting sleeve 100 cannot be damaged in the detection process. Further, through setting up distributed optical fiber sensor 2 spiral on the inner wall of sleeve body 1, can improve distributed optical fiber sensor 2's coverage and detection range, utilize a distributed optical fiber sensor 2 can detect the thick liquids plumpness of each position department in grouting cavity 11, the practicality is high. Further, the spiral accommodating groove 15 for accommodating the distributed optical fiber sensor 2 is formed in the inner wall of the sleeve body 1, so that the fixing effect of the distributed optical fiber sensor 2 can be improved, and the reliability is high.
In a second aspect, the utility model discloses a grouting fullness detection device 300, which is used for detecting the fullness of slurry in a sleeve body 1. Wherein, be formed with the grout chamber 11 that is used for holding the thick liquids in the sleeve body 1, be equipped with grout hole 12 and the grout outlet 13 in the sleeve body 1 intercommunication grout chamber 11.
Referring to fig. 1 to 3, the grouting fullness detecting apparatus 300 provided by the present invention includes a distributed optical fiber sensor 2, a distributed optical fiber demodulator 4, and a data analyzer 5. As shown in fig. 1 and 2, the distributed optical fiber sensor 2 is spirally disposed on the inner wall of the sleeve body 1 along the extending direction of the sleeve body 1, and one end of the distributed optical fiber sensor extends out of the sleeve body 1, and the distributed optical fiber sensor 2 is configured to detect the state of the slurry in the grouting cavity 11, convert the state of the slurry into an optical signal, and output the optical signal. As shown in fig. 1 and fig. 3, the distributed optical fiber demodulator 4 is connected to the distributed optical fiber sensor 2, and is configured to acquire an optical signal output by the distributed optical fiber sensor 2, analyze the optical signal into an electrical signal, and output the electrical signal. The data analyzer 5 is connected with the distributed optical fiber demodulator 4 and used for acquiring the electric signal output by the distributed optical fiber demodulator 4 and analyzing the plumpness of the slurry in the sleeve body 1 according to the electric signal.
The grouting fullness detection device 300 provided by the utility model can be matched with the sleeve body 1 for use so as to detect the fullness of the slurry in the sleeve body 1 after grouting is finished. Specifically, the distributed optical fiber sensor 2 may be disposed on an inner wall of the sleeve body 1, after the slurry is poured into the grouting cavity 11, the slurry acts on the distributed optical fiber sensor 2, and since the temperature and the strain of the slurry change during the hardening process, the distributed optical fiber sensor 2 may detect the state change of the slurry and convert the information into an optical signal for output. Further, the distributed optical fiber sensor 2 is spirally arranged on the inner wall of the sleeve body 1 along the extending direction of the sleeve body 1, the coverage range of the distributed optical fiber sensor 2 is wide, the detection range is large, and the state of the slurry at each position in the grouting cavity 11 can be detected by using one distributed optical fiber sensor 2. Further, the distributed optical fiber sensor 2 is connected to a distributed optical fiber demodulator 4, and the distributed optical fiber demodulator 4 can receive the optical signal detected by the distributed optical fiber sensor 2 and analyze the optical signal into an electrical signal, and output the electrical signal, where the electrical signal includes data information representing the state of the slurry. Further, distributed fiber demodulation appearance 4 is connected with data analysis appearance 5, and data analysis appearance 5 can receive the signal of telecommunication of 4 analytic departments of distributed fiber demodulation appearance and carry out the analysis to it, and then can analyze out the plumpness of thick liquids in the sleeve body 1. In conclusion, the grouting fullness detection device 300 provided by the utility model can be used in combination with the sleeve body 1, can be used for detecting the fullness of the slurry in the sleeve body 1, and has the advantages of good detection effect, high precision, accurate defect positioning and no damage to the structure of the sleeve body 1 in the detection process.
It can be understood that the distributed optical fiber sensor 2 needs to be installed in the sleeve body 1 before grouting, and after detection is completed, the distributed optical fiber demodulator 4 and the data analyzer 5 can be detached, and the distributed optical fiber sensor 2 is retained on the sleeve body 1. In order to improve the reliability of the grouting fullness detection device 300, the length of the distributed optical fiber sensor 2 led out of the sleeve body 1 is not too long.
In an embodiment, as shown in fig. 1 and fig. 3, in order to simplify the structures of the distributed optical fiber sensor 2 and the distributed optical fiber demodulator 4 and improve the convenience of assembly and disassembly, the grouting fullness detecting device 300 further includes a joint 6 and a transmission cable 7, the joint 6 is connected to one end of the distributed optical fiber sensor 2 extending out of the sleeve body 1, one end of the transmission cable 7 is connected to the joint 6, and the other end of the transmission cable is connected to the distributed optical fiber demodulator 4. By adopting the design, the length of the distributed optical fiber sensor 2 can be relatively shortened, the cost is reduced, and the damage risk caused by the cable design process can be reduced.
It is understood that, in some embodiments, the distributed optical fiber sensor 2 may also be directly connected to the distributed optical fiber demodulator 4, and may be specifically designed according to an actual application scenario and a building structure, which is not limited herein.
The distributed optical fiber sensor 2 adopts a unique distributed optical fiber detection technology, arranges the sensing optical fibers along the field, can simultaneously obtain the spatial distribution of the detected field and the change information along with the time, and has good detection effect and high precision. In the grouting fullness detection device 300 provided by the utility model, the type of the distributed optical fiber sensor 2 and the type of the detected state information of the slurry are not unique.
In one embodiment, the distributed optical fiber sensor 2 is a distributed optical fiber strain sensor, and the state information of the slurry is pressure information of the slurry. The distributed optical fiber strain sensor can be used for detecting strain change of slurry in the grouting cavity 11, and expansion degree information of the slurry at each position in the grouting cavity 11 can be determined according to the strain change of the slurry, so that the slurry plumpness can be determined, and the defect position can be accurately positioned.
In one embodiment, the distributed optical fiber sensor 2 is a distributed temperature sensor, and the state information of the slurry is temperature information of the slurry. The distributed temperature sensor can be used for detecting the temperature change of the slurry in the grouting cavity 11, the grouting condition of the slurry in the grouting cavity 11 and the grouting level information of the slurry at each position can be determined according to the temperature change of the slurry, and then the slurry plumpness can be determined and the defect position can be accurately positioned.
It should be noted that, according to the type of the distributed optical fiber sensor 2, the type of the distributed optical fiber demodulator 4 used in combination is also different.
In an embodiment, as shown in fig. 1 and fig. 2, a spiral receiving groove 15 is further formed on an inner wall of the sleeve body 1, and the distributed optical fiber sensor 2 is disposed in the spiral receiving groove 15. By adopting the design, the distributed optical fiber sensor 2 is convenient to fix, the falling and damage risks of the distributed optical fiber sensor 2 in the grouting process are reduced, and the reliability is high. In addition, the distributed optical fiber sensor 2 is disposed in the spiral receiving groove 15, so that the slurry receiving amount of the grouting cavity 11 can be ensured, and the connection strength of the sleeve body 1 can be ensured.
In order to improve the reliability of the grouting fullness detecting apparatus 300, in an embodiment, the distributed optical fiber sensor 2 is fixed on the inner wall of the sleeve body 1 by an epoxy structural adhesive. The distributed optical fiber sensor 2 can be fixed at a preset position by utilizing the epoxy resin structural adhesive, so that the falling and damage risks of the distributed optical fiber sensor 2 in the grouting process can be further reduced, and the use and detection effects of the distributed optical fiber sensor 2 can be ensured. In addition, the epoxy structural adhesive is strong in adhesive force, good in temperature resistance, oil resistance, stability and medium resistance and capable of bearing strong impact and vibration, the distributed optical fiber sensor 2 is fixed by the epoxy structural adhesive, the fixing effect is good, and failure is not prone to occurring.
It can be understood that, in some embodiments, on the premise that the usage effect of the distributed optical fiber sensor 2 is not affected, the distributed optical fiber sensor 2 may be further fixed in the spiral receiving groove 15 by using a fixing member such as a fixing ring, or directly fixed on the inner wall surface of the sleeve body 1, which may be specifically designed according to actual situations, and is not limited herein.
In one embodiment, the distributed optical fiber sensor 2 is externally wrapped with a layer of fiber-reinforced composite material. By adopting the above design, the damage resistance and durability of the distributed optical fiber sensor 2 can be improved, so that the reliability of the distributed optical fiber sensor 2 and the grouting fullness detection device 300 can be further improved.
In one embodiment, the data analyzer 5 includes a display module, and after the detection is completed, the display module can display the detection result, for example, the slurry saturation information at each position inside the sleeve body 1.
In an embodiment, the data analyzer 5 further includes an early warning module, and the early warning module can send out early warning information when the slurry fullness is lower than a preset value.
In summary, the grouting fullness detection apparatus 300 provided by the present invention can be used in combination with the sleeve body 1, the distributed optical fiber sensor 2 can detect the slurry state change in the grouting cavity 11 and convert the information into an optical signal for output, the distributed optical fiber demodulator 4 can analyze the optical signal output by the distributed optical fiber sensor 2 into an electrical signal for output, and the data analyzer 5 can convert the electrical signal output by the distributed optical fiber demodulator 4 into a data signal and analyze whether the slurry saturation meets the requirement. Utilize above-mentioned device to detect the plumpness of thick liquids in the sleeve body 1, detection effect is good, the precision is high, accurate and the detection process can not destroy sleeve body 1 self structure to the defect location.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A grout sleeve, comprising:
the sleeve comprises a sleeve body, wherein a grouting cavity for containing slurry is formed in the sleeve body, and a grouting hole and a slurry outlet hole which are communicated with the grouting cavity are formed in the sleeve body;
the distributed optical fiber sensor is spirally arranged on the inner wall of the sleeve body along the extending direction of the sleeve body, one end of the distributed optical fiber sensor extends out of the sleeve body, and the distributed optical fiber sensor is used for detecting the state of the slurry in the grouting cavity and converting the state information of the slurry into an optical signal.
2. A grouting sleeve according to claim 1, characterised in that the distributed optical fibre sensor is a distributed optical fibre strain sensor and the status information of the slurry is pressure information of the slurry;
or, the distributed optical fiber sensor is a distributed temperature sensor, and the state information of the slurry is temperature information of the slurry.
3. A grout sleeve as claimed in claim 1, wherein a helical receiving groove is provided on the inner wall of the sleeve body, and the distributed optical fibre sensor is disposed in the helical receiving groove.
4. A grout sleeve according to any of claims 1 to 3, wherein the distributed fibre optic sensor is secured to the inner wall of the sleeve body by an epoxy structural glue.
5. A grouting sleeve as claimed in any one of claims 1 to 3, characterised in that the grout outlet is located above the grouting hole, and the end of the distributed optical fibre sensor near the top of the sleeve body extends out of the sleeve body from the grout outlet.
6. The utility model provides a grout plumpness detection device for detect the plumpness of this internal thick liquids of sleeve, this internal grout chamber that is used for holding thick liquids that is formed with of sleeve, be equipped with the intercommunication on the sleeve body the grout hole and the grout outlet in grout chamber, its characterized in that, grout plumpness detection device includes:
the distributed optical fiber sensor is spirally arranged on the inner wall of the sleeve body along the extension direction of the sleeve body, one end of the distributed optical fiber sensor extends out of the sleeve body, and the distributed optical fiber sensor is used for detecting the state of the slurry in the grouting cavity, converting the state information of the slurry into an optical signal and outputting the optical signal;
the distributed optical fiber demodulator is connected with the distributed optical fiber sensor and used for acquiring an optical signal output by the distributed optical fiber sensor, analyzing the optical signal into an electric signal and outputting the electric signal;
and the data analyzer is connected with the distributed optical fiber demodulator and used for acquiring the electric signal output by the distributed optical fiber demodulator and analyzing the fullness of the slurry in the sleeve body according to the electric signal.
7. The grouting fullness detecting device according to claim 6, wherein the distributed optical fiber sensor is a distributed optical fiber strain sensor, and the state information of the slurry is pressure information of the slurry;
or, the distributed optical fiber sensor is a distributed temperature sensor, and the state information of the slurry is temperature information of the slurry.
8. The grout fullness detection device of claim 6, further comprising a connector and a transmission cable, wherein the connector is connected to one end of the distributed optical fiber sensor extending out of the sleeve body, one end of the transmission cable is connected to the connector, and the other end of the transmission cable is connected to the distributed optical fiber demodulator.
9. The grouting fullness detecting device of any one of claims 6-8, wherein a spiral receiving groove is formed on an inner wall of the sleeve body, and the distributed optical fiber sensor is disposed in the spiral receiving groove.
10. The grout fullness detection apparatus of any one of claims 6-8, wherein the distributed optical fiber sensor is fixed on the inner wall of the sleeve body by epoxy structural glue.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122617713.0U CN216816690U (en) | 2021-10-28 | 2021-10-28 | Grouting sleeve and grouting fullness detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122617713.0U CN216816690U (en) | 2021-10-28 | 2021-10-28 | Grouting sleeve and grouting fullness detection device |
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| CN216816690U true CN216816690U (en) | 2022-06-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115598007A (en) * | 2022-10-27 | 2023-01-13 | 中钢集团郑州金属制品研究院股份有限公司（Cn） | Prestressed corrugated pipe grouting quality detection device and detection method |
| CN116952729A (en) * | 2023-09-21 | 2023-10-27 | 北京建筑大学 | Sleeve grouting quality detection device, assembly and use method thereof |
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2021
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115598007A (en) * | 2022-10-27 | 2023-01-13 | 中钢集团郑州金属制品研究院股份有限公司（Cn） | Prestressed corrugated pipe grouting quality detection device and detection method |
| CN116952729A (en) * | 2023-09-21 | 2023-10-27 | 北京建筑大学 | Sleeve grouting quality detection device, assembly and use method thereof |
| CN116952729B (en) * | 2023-09-21 | 2024-01-16 | 北京建筑大学 | Sleeve grouting quality detection device, assembly and use method thereof |
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