Matrix type detection scanning and automatic analysis early warning anchor cable system

Abstract

The utility model discloses a matrix type detection scanning and automatic analysis early warning anchor cable system which comprises an anchorage device unit, a prestress steel cable, an anchorage body, a shock wave detection unit, a control analysis unit and an internal force sensing unit. The outer ends of the prestressed steel cables of the anchorage device units are tensioned and fixed on the anchorage bodies; the shock wave detection units emit shock waves to perform all-directional scanning detection on the interior of the anchoring body, and a matrix structure is formed through the multiple shock wave detection units; the internal force sensing unit is arranged at the end part of the prestress steel cable and is used for detecting a prestress tension internal force value in real time; the control analysis unit receives an internal force value detected by the internal force sensing unit, compares the internal force value with an early warning limit value, and sends out an early warning signal when the limit value is exceeded; and the structure distribution condition of the anchoring body is judged by analyzing the detection wave signal. According to the anchor cable system, the change of the internal force of the anchor cable is detected and early warned, and the position and the development trend of a dangerous structural surface of a structure are pre-judged in combination with the change of the local wave velocity in an anchoring body and the change of the internal force of the anchor cable.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model belongs to the construction engineering monitoring technical field, more particularly, relate to a matrix type detection scanning and automatic analysis early warning anchor cable system. BACKGROUND

[0002] The role of anchorage device in slope and bridge mainly reflects in improving the stability and safety of structure, improving stress structure, prolonging service life and anticorrosion protection and the like. The correct application and protection of anchorage device are crucial to ensure the long-term stability and safety of engineering, therefore, long-term monitoring needs to be carried out on anchorage device to evaluate the stability and safety of geotechnical engineering or concrete structure.

[0003] At present, the internal force of anchor cable or anchor rod is an important index for judging the safety of geotechnical engineering supporting structure; generally, the internal force of anchorage device is monitored, and the monitoring method is that during the construction of anchor cable or anchor rod, a dynamometer is pre-installed between the anchor cable or anchor rod and the pad, and after the anchoring of anchor head, the value displayed on the dynamometer is the internal force value of the measured anchor rod; this method can realize long-term monitoring of the internal force of anchor cable or anchor rod, and is mainly used for geotechnical engineering construction monitoring. However, the monitoring range of this method is limited, and the whole anchorage device cannot be monitored, and the internal structure change of anchoring body cannot be reflected more.

[0004] Therefore, at present, a matrix type detection scanning and automatic analysis early warning anchor cable system is urgently needed, which can detect the anchor cable or anchor rod and detect and analyze the internal structure change of anchoring body, and make early warning judgment according to the monitoring result, so as to accurately evaluate the stability and safety of geotechnical engineering or concrete structure. SUMMARY

[0005] In view of the problems that the anchorage device detection device of the prior art cannot monitor the whole anchorage device and cannot reflect the internal structure change of anchoring body more, the utility model provides a matrix type detection scanning and automatic analysis early warning anchor cable system to solve such problems.

[0006] In order to realize the above-mentioned purpose, the utility model provides a matrix type detection scanning and automatic analysis early warning anchor cable system, which comprises an anchorage device unit that fixes the outer end of prestressed cable on anchoring body, which is provided with multiple groups; a shock wave detection unit that is arranged in the anchor hole in intervals, and multiple shock wave detection units form a matrix structure; an internal force sensing unit arranged at the outer end of the prestressed cable, which detects the tension internal force value of the prestressed cable in real time; and a control analysis unit, which is respectively connected with the internal force sensing unit and the shock wave detection unit, compares the internal force value detected by the internal force sensing unit with the early warning limit value, triggers the early warning system and sends an early warning signal when the limit value is exceeded; the structure distribution of anchoring body is judged by receiving the detection wave signal of the shock wave detection unit.

[0007] Further, the shock wave detection unit comprises a shock wave generating module and a shock wave receiving module, the shock wave generating module can emit a detection wave to detect the internal structure of the anchoring body; the shock wave receiving module receives the returned reflected detection wave and converts it into a detection wave signal.

[0008] Further, the shock wave detection unit further comprises a first signal sending module which sends the detection wave signal to the control analysis unit.

[0009] Further, the anchor unit is fixed on the anchoring body and located at the outer port of the anchor hole.

[0010] Further, the anchor unit comprises an anchor pad and an anchor plate; the anchor pad is a horn-shaped structure which is fixed at the outer port of the anchor hole through concrete pouring; the anchor plate is arranged at the horn mouth of the anchor pad and is provided with a plurality of mounting clamping holes for connecting with the end of the prestressed steel cable.

[0011] Further, the rear end of the anchor pad is further provided with a spiral rib which is fixed in the anchoring body through concrete pouring to increase the connection strength of the anchor pad and the concrete.

[0012] Further, the control analysis unit is sleeved on the outer periphery of the internal force sensing unit and comprises a control analysis module, a signal receiving module and a second signal sending module.

[0013] Further, a prestressed corrugated pipe is arranged in the anchor hole, which is a plastic pipe or a galvanized metal pipe for installing and protecting the prestressed steel cable.

[0014] Overall, compared with the prior art, the above technical scheme conceived by the utility model can achieve the following beneficial effects:

[0015] (1) The anchor cable system of the utility model can detect the prestressed steel cable and detect and scan the environmental changes around the prestressed steel cable through the arrangement of the shock wave detection unit and the internal force sensing unit; through the monitoring result, the system can make early warning judgment to accurately evaluate the stability and safety of the geotechnical engineering or the concrete structure; such comprehensive monitoring and early warning function can help to find potential structural problems in time and prevent accidents.

[0016] (2) The anchor cable system of the utility model adopts matrix type detection scanning technology, a plurality of groups of shock wave detection units are arranged on the prestressed steel cable at intervals to form a matrix structure, which can perform omnidirectional scanning detection on the internal anchoring body; such technology can provide more detailed structural distribution, such as judging the disease position of cracks, cavities and the like in the concrete structure, and judging the distribution of different rock layers in the slope structure, especially the accurate positioning of the slope sliding surface.

[0017] (3) The anchor cable system of the utility model, equipped with internal force sensing unit, can monitor real-time prestressed tension internal force value, and compare with early warning limit value;Once internal force exceeds set limit value, system will automatically trigger early warning, and send early warning signal;This real-time monitoring and automatic early warning mechanism can ensure to take measures quickly when anchor cable internal force is abnormal, and improve engineering safety and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a structure schematic view of a matrix type detection scanning and automatic analysis early warning anchor cable system in the utility model embodiment;

[0019] Fig. 2 It is a side view structure view of an anchorage unit in the utility model embodiment;

[0020] Fig. 3 It is a sectional structure view of the anchorage unit in the utility model embodiment.

[0021] In all drawings, same reference signs represent same technical features, specifically: 1-anchorage unit, 11-anchor backing plate, 12-anchor plate, 2-prestressed steel cable, 3-anchor body, 4-shock wave detection unit, 5-anchor hole, 6-helical bar, 7-prestressed corrugated pipe, 8-control analysis unit, 9-internal force sensing unit. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with drawings and embodiments.It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] As Figs. 1-3As shown, the utility model provides a kind of matrix detection scanning and automatic analysis early warning anchor cable system, including anchorage unit 1, prestressed cable 2, anchorage body 3, shock wave detection unit 4, control analysis unit 8 and internal force sensing unit 9.The anchorage unit 1 is equipped with multiple groups, and it is fixed on anchorage body 3 with the tension of the outer end of prestressed cable 2;The shock wave detection unit 4 includes shock wave generating module and shock wave receiving module, which is spaced in multiple groups in anchor hole 5, and multiple shock wave detection units 4 form a matrix structure;The internal force sensing unit 9 is arranged at the outer end of prestressed cable 2, for real-time detection of the tension internal force value of prestressed cable 2;The control analysis unit 8 is respectively connected with shock wave detection unit 4 and internal force sensing unit 9, which compares the internal force value detected by internal force sensing unit 9 with the early warning limit value, and triggers the early warning system when the limit value is exceeded, and sends early warning signal;The structure distribution of anchorage body 11 is judged by receiving the detection wave signal of shock wave detection unit 4.The anchor cable system of the utility model can detect the internal force change of anchor cable and give early warning, and predict the position and development trend of dangerous structure surface by combining the internal partial wave velocity change of anchorage body 3 and the internal force change of anchor cable.

[0024] As shown, Fig. 1 The anchorage body 3 is rock-soil slope or concrete structure, and multiple anchor holes 5 are arranged in the anchorage body 3 for passing through the prestressed cable 2, so that the stress structure of the anchorage body 3 is improved by the prestressed cable 2.

[0025] The anchorage unit 1 is used for maintaining the tension of the prestressed cable 2 and transmitting the tension to the inside of the anchorage body 3, and the anchorage unit 1 is fixed on the anchorage body 3 and located at the outer end of the anchor hole 5.

[0026] The shock wave detection unit 4 is located in the anchor hole 5, and multiple shock wave detection units 4 are arranged in the anchor hole 5, and the multiple shock wave detection units 4 form a detection matrix of a spatial grid structure. The shock wave detection unit 4 includes a shock wave generating module and a shock wave receiving module, the shock wave generating module can emit a detection wave to detect the internal structure of the anchorage body 3, the shock wave receiving module receives the reflected detection wave and converts the reflected detection wave into a detection wave signal, and further, the shock wave detection unit 4 further includes a first signal sending module, which converts the detection wave signal into a wireless signal and sends the wireless signal to the control analysis unit 8, and the control analysis unit 8 analyzes and counts the detection wave signal strength and wave velocity to judge the structure distribution of the anchorage body 3, for example, the position of cracks, cavities and other diseases in the concrete in a large prestressed concrete structure can be judged, and the development trend of the cracks can be judged through long-term continuous monitoring, and the distribution of different rock layers in a large slope structure can be judged, especially the accurate positioning of the slope sliding surface.

[0027] When the shock wave detection unit 4 is installed, the shock wave detection unit 4 can be sleeved on the prestressed cable 2 and loaded into the anchor hole 5.

[0028] As shown in Figs. 2-3 The anchor unit 1 includes an anchor pad 11 and an anchor plate 12. The anchor pad 11 is a horn-shaped structure fixed to the outer end of the anchor hole 5 by concrete pouring. Further, the anchor pad 11 is provided with a spiral rib 6 at the rear end, which is fixed in the anchoring body 3 by concrete pouring, thereby increasing the connection strength of the anchor pad 11 and the concrete and improving the tensile strength and stability of the concrete structure. The anchor plate 12 is arranged at the horn mouth of the anchor pad 11 and is provided with a plurality of mounting clamping holes for connecting with the end of the prestressed steel cable 2.

[0029] The prestressed steel cable 2 inside the anchoring body 3 can be installed and protected by a prestressed corrugated pipe 7, which is a plastic pipe or a galvanized metal pipe located in the anchor hole 5. The prestressed corrugated pipe 7 can effectively protect the prestressed steel cable from corrosion and has a small friction coefficient, thereby reducing the prestress loss during tensioning.

[0030] The internal force sensing unit 9 includes an internal force sensor arranged in the horn mouth of the anchor pad 11 for monitoring the prestressed steel cable 2 and transmitting the prestressed tension internal force value in real time. During the anchoring use stage, the anchor cable tension changes due to the disturbance of the engineering body, and the change value of the anchor cable internal force can be monitored in real time by the force sensing unit 9. By setting the early warning limit value range of the anchor cable internal force in the control analysis unit 8, when the internal force of the anchor cable exceeds the limit value, the early warning system is triggered and an early warning signal is sent out.

[0031] The control analysis unit 8 is sleeved on the outer periphery of the internal force sensing unit 9 and is located in the anchor pad 11. The control analysis unit 8 includes a control analysis module, a signal receiving module and a second signal sending module. The signal receiving module is in communication connection with the shock wave detection unit 4 and the internal force sensing unit 9, respectively, for receiving the detection wave signal and the internal force value signal and uploading the received signals to the control analysis module. The control analysis module analyzes the structure distribution of the anchoring body 3 by detecting the wave signal strength and wave speed, compares the internal force value signal with the early warning limit value, and sends out a warning signal when the internal force of the anchor cable exceeds the limit value. The second signal sending module sends the structure distribution of the anchoring body 3, the internal force value signal and the early warning signal to the terminal device of the maintenance worker through wireless signal mode, so as to facilitate the real-time monitoring of the maintenance worker.

[0032] The anchor cable system of the utility model, through being equipped with shock wave detection unit 4 and internal force sensing unit 9, prestressed steel cable 2 can be detected, and the environmental change around prestressed steel cable 2 is detected and scanned; through the monitoring result, the system can make early warning judgment, thereby accurately evaluating the stability and safety of geotechnical engineering or concrete structure; this comprehensive monitoring and early warning function helps to find potential structural problems in time and prevent accidents.

[0033] The anchor cable system of the utility model, through being equipped with shock wave detection unit 4 and internal force sensing unit 9, prestressed steel cable 2 can be detected, and the environmental change around prestressed steel cable 2 is detected and scanned; through the monitoring result, the system can make early warning judgment, thereby accurately evaluating the stability and safety of geotechnical engineering or concrete structure; this comprehensive monitoring and early warning function helps to find potential structural problems in time and prevent accidents.

[0034] The anchor cable system of the utility model, through being equipped with shock wave detection unit 4 and internal force sensing unit 9, prestressed steel cable 2 can be detected, and the environmental change around prestressed steel cable 2 is detected and scanned; through the monitoring result, the system can make early warning judgment, thereby accurately evaluating the stability and safety of geotechnical engineering or concrete structure; this comprehensive monitoring and early warning function helps to find potential structural problems in time and prevent accidents.

[0035] The anchor cable system of the utility model, through being equipped with shock wave detection unit 4 and internal force sensing unit 9, prestressed steel cable 2 can be detected, and the environmental change around prestressed steel cable 2 is detected and scanned; through the monitoring result, the system can make early warning judgment, thereby accurately evaluating the stability and safety of geotechnical engineering or concrete structure; this comprehensive monitoring and early warning function helps to find potential structural problems in time and prevent accidents.

[0036] Those skilled in the art can easily understand that the above only describes the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A matrix probe scanning and automatic analysis early warning anchor cable system, characterized in that, The utility model relates to a prestressed cable tensioning device, which comprises: an anchor unit (1) for tensioning and fixing the outer end of a prestressed cable (2) on an anchoring body (3), which is provided with multiple groups of: shock wave detection units (4) arranged at intervals in an anchor hole (5), the multiple shock wave detection units (4) forming a matrix structure; an internal force sensing unit (9) arranged at the outer end of the prestressed cable (2) to detect the tensioning internal force value of the prestressed cable (2) in real time; and a control analysis unit (8) in communication connection with the internal force sensing unit (9) and the shock wave detection units (4), which compares the internal force value detected by the internal force sensing unit (9) with a prewarning limit value, triggers a prewarning system and sends a prewarning signal when the limit value is exceeded, and judges the structural distribution of the anchoring body (3) by receiving the detection wave signals of the shock wave detection units (4).

2. The matrix probe scanning and automatic analysis early warning anchor line system according to claim 1, characterized in that, The shock wave detection unit (4) comprises a shock wave generating module and a shock wave receiving module, the shock wave generating module can emit detection waves to detect the internal structure of the anchoring body (3), and the shock wave receiving module receives the reflected detection waves and converts them into detection wave signals.

3. The matrix probe scanning and automatic analysis early warning anchor line system according to claim 2, characterized in that, The shock wave detection unit (4) further comprises a first signal sending module which sends the detection wave signals to the control analysis unit (8).

4. A matrix probe scanning and automatic analysis early warning anchor line system according to any one of claims 1-3, characterized in that, The anchor unit (1) is fixedly arranged on the anchoring body (3) at the outer end of the anchor hole (5).

5. The matrix probe scanning and automatic analysis early warning anchor line system according to claim 4, characterized in that, The anchor unit (1) comprises an anchor backing plate (11) and an anchor plate (12), the anchor backing plate (11) is in a horn structure and is fixedly arranged at the outer end of the anchor hole (5) through concrete pouring, and the anchor plate (12) is arranged at the horn mouth of the anchor backing plate (11) and is provided with multiple mounting clamping holes for connecting with the end of the prestressed cable (2).

6. A matrix probe scanning and automatic analysis early warning anchor line system according to claim 5, characterized in that, The anchor backing plate (11) is further provided with a spiral rib (6) at the rear end, which is fixedly arranged in the anchoring body (3) through concrete pouring to increase the connection strength between the anchor backing plate (11) and the concrete.

7. A matrix probe scanning and automatic analysis pre-warning anchor cable system according to any one of claims 1-3, characterized in that, The control analysis unit (8) is sleeved on the outer periphery of the internal force sensing unit (9) and comprises a control analysis module, a signal receiving module and a second signal sending module.

8. A matrix probe scanning and automatic analysis pre-warning anchor cable system according to any one of claims 1-3, characterized in that, The anchor hole (5) is provided with a prestressed corrugated pipe (7), which is a plastic pipe or a galvanized metal pipe, for installing and protecting the prestressed cable (2) and the shock wave detection units (4).

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