Termite control dam structure and control method

Abstract

The invention relates to the technical field of dam termite prevention and control in water conservancy and hydropower engineering, in particular to a termite prevention and control dam structure and a termite prevention and control method. The multifunctional termite control device system is arranged in a dam with termite damage and comprises an osmotic pressure monitoring pipe, a termite trapping and killing device, a grouting device, an osmotic pressure monitoring device and a cover plate. The construction period and the operation period of the dam are both convenient; on the premise that dam osmotic pressure monitoring is not affected, a cover plate is arranged at the top of the termite prevention and control device, and replacement and long-term use of trapping and killing bags, bait guiding wood and an intelligent monitoring device which are embedded inside are facilitated; in the aspect of grouting control, long-term repeated grouting control can be realized without independent punching; the termites can be trapped, killed and monitored by burying trapping and killing bags, bait guiding wood and an intelligent monitoring device, and meanwhile, grouting measures can be implemented on the premise of low cost when necessary; construction is easy and convenient, the cost is low, and comprehensive control and thorough treatment of the termites are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of termite control on dams in water conservancy and hydropower projects, and in particular to a termite control dam structure and a control method. Background Art

[0002] "A thousand-mile dam collapses because of ant holes." Termites are one of the world's five most famous pests, and they have long been a threat to water conservancy projects. With the continuous construction of water conservancy and hydropower projects in my country, dam projects have developed rapidly. As time goes by, termites move to earth dams to build nests, causing damage, which poses a threat to dam safety over time.

[0003] According to the activity patterns of dam termites and some current domestic research practices, the commonly used dam termite control methods mainly include: trapping and killing, spraying and killing, digging and killing, drug grouting, smoke and fumigation, etc. Conventional dam termite control methods are relatively simple and need to be implemented separately according to the ant infestation survey and the ant infestation damage. The drug grouting method with better control effect often requires separate drilling and implementation, which is inconvenient and costly to construct. In order to solve the above problems, it is necessary to propose a dam structure that can achieve multifunctional termite control and is easy to construct.

[0004] Based on this, this case is brought forward. Summary of the invention

[0005] One of the purposes of the present invention is to provide a termite control dam structure, which has the characteristics of simple construction, low cost, comprehensive control and thorough treatment, and can meet the comprehensive treatment of dam termites.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] A termite control dam structure comprises a dam, wherein a plurality of termite control devices are arranged in the dam, and the termite control devices comprise:

[0008] A seepage pressure monitoring pipe is vertically buried in the dam, and the top is connected to the outside of the dam. A hole is opened at the middle section of the seepage pressure monitoring pipe and a one-way valve is installed to form a grouting hole, and the one-way valve allows the slurry in the pipe to flow out. A hole is opened at the lower section of the seepage pressure monitoring pipe and is wrapped with a geotextile to form a seepage pressure water inlet hole.

[0009] The termite trapping device is installed on the outer side of the upper wall of the seepage pressure monitoring pipe to trap and kill termites and monitor and provide feedback on the termite infestation;

[0010] The seepage pressure monitoring device is installed in the seepage pressure monitoring pipe, and monitors the seepage pressure of the water entering the pipe through the seepage pressure inlet hole to realize the monitoring and feedback of the seepage pressure of the dam;

[0011] The grouting device is used to grout the ant nest cavity in the dam through the grouting holes of the seepage pressure monitoring tube.

[0012] Furthermore, the termite trapping device comprises a shell fixed on the outer wall of the upper section of the seepage monitoring tube, a receiving space is formed between the shell and the seepage monitoring tube, a trapping hole is opened on the shell wall of the shell, and a trapping bag, a bait wood and a monitoring module are arranged in the receiving space;

[0013] The bait wood is used to lure termites in the dam into the accommodation space through the lure holes;

[0014] The trapping bag traps and kills termites that enter the accommodation space;

[0015] The monitoring module is used to monitor the ant infestation situation in the accommodation space in real time and to generate an alarm.

[0016] Furthermore, the upper portion of the accommodation space is open and provided with a cover plate, and the accommodation space is connected and disconnected from the outside of the dam by opening and closing the cover plate.

[0017] Further, the osmotic pressure monitoring device includes an osmometer, a cable and a cable tube;

[0018] The osmometer is arranged inside the lower section of the osmotic pressure monitoring tube and is used to monitor the seepage pressure entering the tube through the osmotic pressure inlet hole;

[0019] The cable pipe is arranged at the upper section of the seepage pressure monitoring pipe, one end of the cable pipe is located inside the seepage pressure monitoring pipe, and the other end is located outside the seepage pressure monitoring pipe and extends to the management room of the dam;

[0020] The lower end of the cable is electrically connected to the piezometer, and the upper end is guided into the management room through a cable pipe for electrical connection; the cable includes cable segment one and cable segment two, cable segment one is located in the osmosis pressure monitoring pipe, and cable segment two is located in the cable pipe, and cable segment one and cable segment two are connected by a cable connector.

[0021] Furthermore, the grouting device comprises a grout inlet pipe, a closing ring and a grout outlet pipe;

[0022] The closed ring is arranged inside the middle section of the seepage pressure monitoring pipe when grouting is required. The closed ring includes an upper closed ring and a lower closed ring. The distance between the upper and lower closed rings is used to control the elevation of grouting.

[0023] The slurry outlet pipe is arranged between the upper and lower closed circles, and a slurry outlet hole is arranged on the wall of the slurry outlet pipe;

[0024] One end of the slurry inlet pipe is used to connect to the grouting equipment, and the other end enters the seepage pressure monitoring pipe and passes through the upper closed ring to communicate with the slurry outlet pipe.

[0025] Furthermore, the slurry outlet holes on the slurry outlet pipe are arranged in a plum blossom shape on the pipe surface.

[0026] Furthermore, the grouting holes and / or seepage pressure water inlet holes on the seepage pressure monitoring pipe are arranged in a plum blossom shape on the pipe surface.

[0027] Furthermore, the number of termite control devices arranged on each of the dam sections is no less than 3.

[0028] Furthermore, a cover plate is provided on the top of the seepage pressure monitoring pipe, and connection and disconnection with the outside of the dam are achieved by opening and closing the cover plate.

[0029] The second object of the present invention is to provide a method for controlling termites based on the above-mentioned termite control dam structure. During the daily operation period of the dam, the seepage pressure monitoring device monitors the seepage pressure of the dam in real time, and the termite trapping device monitors the termite infestation in real time; when the severity of the termite infestation of the dam and / or the abnormal degree of water pressure in the dam exceeds a threshold, grouting control measures are taken, and the grouting control measures include the following steps:

[0030] Unplug the cable connector of the osmotic pressure monitoring device and take out the piezometer and the cable segment;

[0031] Place the lower sealing ring, the slurry outlet pipe, the upper sealing ring and the slurry inlet pipe into the seepage pressure monitoring pipe in sequence, connect the upper end of the slurry outlet pipe with the lower end of the slurry inlet pipe, and connect the upper end of the slurry inlet pipe with the grouting equipment;

[0032] Grouting;

[0033] After the grouting is completed, the grouting device is removed and the seepage pressure monitoring pipe is fully flushed;

[0034] Reinstall the osmotic pressure monitoring device.

[0035] The advantages of the present invention are:

[0036] 1) Simple construction: This scheme can be implemented by burying during the dam construction period, or by drilling on the existing dam. A cover plate is set on the top of the termite trapping device to facilitate the replacement of the internal trapping bag, bait wood and monitoring module. The termite grouting prevention and control measures do not require separate drilling, and the grouting can be carried out after the seepage monitoring device in the seepage monitoring pipe is taken out;

[0037] 2) Low cost: The multifunctional termite control device of this scheme can perform multifunctional termite control without affecting the seepage pressure monitoring of the dam, and the termite control drugs and equipment in the termite trapping device can be replaced for a long time; in terms of grouting control, there is no need to drill holes separately and long-term repeated grouting can be achieved. Compared with the conventional termite control grouting measures that require separate drilling and grouting, the cost of termite grouting control is greatly reduced;

[0038] 3) Comprehensive prevention and control and thorough management: The termite trapping device can be equipped with trapping bags, bait wood and monitoring modules to trap and kill termites and conduct intelligent monitoring. At the same time, grouting measures can be implemented when necessary, thus achieving comprehensive prevention and control and thorough management of termites. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a plan view of an embodiment of the present invention;

[0040] Figure 2 is a cross-sectional view of an embodiment of the present invention;

[0041] Figure 3 yes Figure 2 Detailed diagram of the osmotic pressure monitoring period A;

[0042] Figure 4 yes Figure 2 Detailed drawing of the grouting period A;

[0043] Figure 5 yes Figure 3 A-A section diagram;

[0044] Figure 6 yes Figure 3 B-B section of

[0045] Figure 7 yes Figure 3 C-C section diagram;

[0046] Figure 8 yes Figure 3 D-D section diagram;

[0047] Fig. 9 yes Figure 4 E-E section diagram;

[0048] Fig.10 yes Figure 4 F-F section diagram;

[0049] Fig.11 yes Figure 4 G-G section diagram;

[0050] Fig.12 yes Figure 4 H-H cross-section diagram;

[0051] Fig.13 yes Figure 4 Section I-I of

[0052] Description of symbols

[0053] 1- embankment; 2- termite control device; 21- seepage pressure monitoring tube; 22- termite trapping device; 23- grouting device; 24- seepage pressure monitoring device; 25- cover plate;

[0054] 21a-steel pipe; 21b-grouting hole; 21c-rubber pipe sleeve; 21d-seepage water inlet hole; 21e-geotextile; 21f-steel wire;

[0055] 22a- steel shell; 22b- bait hole; 22c- bait bag; 22d- bait wood; 22e- monitoring module;

[0056] 23a-slurry inlet pipe; 23b-closing ring; 23c-slurry outlet pipe; 23d-slurry outlet hole; 23e-slurry;

[0057] 24a- piezometer; 24b- cable; 24c- cable connector; 24d- cable tube; DETAILED DESCRIPTION

[0058] The present invention is further described in detail below in conjunction with the embodiments. It should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" herein are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0059] like Figures 1 to 13 As shown, this embodiment proposes a termite control dam structure, which has the characteristics of simple construction, low cost, comprehensive control and thorough treatment, and can meet the comprehensive treatment of dam termites. The dam structure includes a dam 1 and a multifunctional termite control device 2. Figure 2 As shown, the multifunctional termite control device 2 is systematically arranged in the dam where termites are present. The multifunctional termite control device 2 includes a seepage pressure monitoring pipe 21, a termite trapping device 22, a grouting device 23, a seepage pressure monitoring device 24 and a cover plate 25. The termite control device 2 can be buried during the dam construction period or drilled on the built dam. The termite control device 2 can be systematically arranged or locally arranged on the dam, but the number of termite control devices arranged on each dam section should be no less than three, so as to better monitor the water pressure change curve in the dam. When the water pressure change in the dam is abnormal, it can be timely checked whether it is caused by dam termites and take prevention and control measures accordingly.

[0060] like Figure 3As shown, the seepage pressure monitoring pipe 21 is buried in the main structure of the dam 1, including a steel pipe 21a, a grouting hole 21b, a one-way rubber sleeve 21c (i.e., a one-way valve), a seepage pressure inlet hole 21d, a geotextile 21e, and a steel wire 21f. The steel pipe 21a of the seepage pressure monitoring pipe 21 can be divided into three sections: upper, middle, and lower. The surface of the middle section of the steel pipe 21a is provided with a grouting hole 21b, the surface of the lower section of the steel pipe 21a is provided with a seepage pressure inlet hole 21d, and a one-way rubber sleeve 21c is provided outside the grouting hole 21b to control the unidirectional outflow of the grouting. The outside of the seepage pressure inlet hole 21d is wrapped with a geotextile 21e, and the end of the geotextile 21e is wrapped and tied with a steel wire 21f. During the operation of the dam, the water pressure in the dam body can enter the steel pipe 21a through the seepage pressure inlet hole 21d to achieve seepage pressure monitoring.

[0061] The one-way rubber tube sleeve 21c of the seepage pressure monitoring tube 21 can be opened outward during grouting to allow slurry 23e to enter the dam, and automatically closed when grouting is completed, thereby preventing external impurities from entering the seepage pressure monitoring tube 21 and achieving the effect of one-way grouting.

[0062] The upper outer wall of the steel pipe 21a is provided with a termite trapping device 22, which includes a steel shell 22a, an attracting hole 22b, a trapping bag 22c, a bait wood 22d and a monitoring module 22e. The steel shell 22a is connected to the steel pipe 21a of the seepage monitoring tube 21 by welding, and a storage space is formed between the shell 22a and the seepage monitoring tube 21. The surface of the steel shell 22a is provided with an attracting hole 22b, and the accommodation space is provided with a trapping bag 22c, a bait wood 22d and a monitoring module 22e. The bait wood 22d is used to lure termites in the dam into the accommodation space through the attracting hole 22b, and the trapping bag 22c is used to lure termites entering the accommodation space. The monitoring module 22e is used to monitor the termite infestation in the accommodation space in real time and alarm.

[0063] Preferably, the luring hole 22b should be set with a smaller aperture, so as to prevent other irrelevant creatures from entering as much as possible while being able to satisfy the entry of termites. At the same time, a cover plate 25 is set on the top of the termite trapping device 22, which can facilitate the replacement of the internal trapping bag 22c, the bait wood 22d and the monitoring module 22e. When the termite infestation is found or the monitoring module 22e alarms the termite infestation, the cover plate 25 can be opened to take other prevention and control measures such as spraying powder on the living termites in the termite trapping device 22. In addition, the number of the trapping bag 22c, the bait wood 22d and the monitoring module 22e in the termite trapping device 22 can be flexibly adjusted according to the actual termite infestation situation, and other termite trapping drugs or devices can also be buried, so as to achieve a better comprehensive prevention and control effect.

[0064] During the daily operation of the dam, a seepage pressure monitoring device 24 is installed in the seepage pressure monitoring pipe 21. Figure 3 and Figure 5As shown, the seepage pressure monitoring device 24 includes a piezometer 24a, a cable 24b, a cable connector 24c and a cable tube 24d. The piezometer 24a is placed at the bottom of the seepage pressure monitoring tube 21, and the cable tube 24d is arranged at the top of the seepage pressure monitoring tube 21. The cable tube 24d is firmly connected to the steel tube 21a of the seepage pressure monitoring tube 21 by welding; the cable 24b includes a cable segment 1 and a cable segment 2. The cable segment 1 is arranged in the seepage pressure monitoring tube 21 and is connected to the piezometer 24a at the bottom. The cable segment 2 is led to the power distribution equipment through the cable tube 24d. The cable segment 1 and the cable segment 2 are electrically connected through the cable connector 24c, which is convenient for disassembling the piezometer 24a and the cable segment 1 before implementing grouting measures.

[0065] When the dam is seriously infested with ants or the seepage pressure monitoring device 24 shows that the water pressure in the dam is abnormal, grouting prevention measures can be taken. By unplugging the cable connector 24c of the seepage pressure monitoring device 24, taking out the piezometer 24a and the cable segment, and then inserting the grouting device 23 into the seepage pressure monitoring pipe 21, the grouting measures can be implemented. Figure 4 As shown, the grouting device 23 includes a grouting pipe 23a, a closed ring 23b, a grouting pipe 23c and a grouting hole 23d. One end of the grouting pipe 23a is connected to the grouting related equipment, and the other end extends into the seepage pressure monitoring pipe 21 and is connected to the closed ring 23b. The closed ring 23b has two layers, which are respectively arranged at the upper and lower parts of the middle section of the seepage pressure monitoring pipe 21. A grouting pipe 23c is arranged in the middle of the two layers of closed rings, and a grouting hole 23d is arranged on the surface of the grouting pipe 23c. When grouting is implemented, the slurry 23e is pressed into the slurry outlet pipe 23c from the slurry inlet pipe 23a, and enters the steel pipe 21a of the seepage pressure monitoring pipe 21 through the grouting hole 23d on the surface of the slurry outlet pipe 23c. Then, the slurry 23e pushes the one-way rubber sleeve 21c to enter the dam through the grouting hole 21b, thereby realizing the grouting filling of the ant nest cavity. The two-layer closed ring 23b of the grouting device 23 can adjust the elevation according to the construction requirements, so as to realize grouting within different elevation ranges of the dam 1.

[0066] Preferably, the slurry 23e of the grouting device 23 can be composed of cement, yellow mud, environmental protection control drugs, water, etc., and can be mixed with appropriate amounts of expansion agents, early strength agents and water reducers, etc. Under the premise of environmental protection control of ant infestation, the slurry 23e can be allowed to penetrate into the distant ant nest cavity as much as possible and the slurry 23e can be solidified in time and well combined with the original dam material.

[0067] Preferably, the grouting holes 21b and the seepage pressure inlet holes 21d of the seepage pressure monitoring pipe 21 and the grouting holes 23d of the grouting device 23 should be arranged in a plum blossom shape on the pipeline surface to achieve a better grouting or water seepage effect.

[0068] This embodiment also proposes a control method based on the above-mentioned termite control dam structure. During the daily operation period of the dam, a seepage pressure monitoring device 24 is installed in the seepage pressure monitoring pipe 21. The seepage pressure monitoring device 24 monitors the seepage pressure of the dam in real time, and the termite trapping device 22 monitors the termite infestation in real time. When the severity of the termite infestation of the dam and / or the abnormal degree of water pressure in the dam exceeds a threshold, grouting control measures are taken, and the grouting control measures include the following steps:

[0069] S1. Unplug the cable connector 24c of the pressure monitoring device 24, and remove the osmometer 24a and the cable segment;

[0070] S2. Place the lower closed ring, the slurry outlet pipe 23c, the upper closed ring and the slurry inlet pipe 23a into the seepage pressure monitoring pipe 21 in sequence, connect the upper end of the slurry outlet pipe 23c to the lower end of the slurry inlet pipe 23a, and connect the upper end of the slurry inlet pipe 23a to the grouting equipment;

[0071] S3. Grouting;

[0072] S4. After the grouting is completed, the grouting device 23 is removed and the seepage pressure monitoring tube 21 is fully flushed to prevent the residual slurry 23e from solidifying and blocking the grouting hole 21b and the seepage pressure inlet hole 21d of the seepage pressure monitoring tube 21;

[0073] S4. Reinstall the osmotic pressure monitoring device 24.

[0074] The above embodiments are only used to explain the concept of the present invention, rather than to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A termite control dam structure, comprising a dam, characterized in that: Several termite control devices are arranged in the dam, and the termite control devices include: A seepage pressure monitoring pipe is vertically buried in the dam, and the top is connected to the outside of the dam. A hole is opened at the middle section of the seepage pressure monitoring pipe and a one-way valve is installed to form a grouting hole, and the one-way valve allows the slurry in the pipe to flow out. A hole is opened at the lower section of the seepage pressure monitoring pipe and is wrapped with a geotextile to form a seepage pressure water inlet hole. The termite trapping device is installed on the outer side of the upper wall of the seepage pressure monitoring pipe to trap and kill termites and monitor and provide feedback on the termite infestation; The seepage pressure monitoring device is installed in the seepage pressure monitoring pipe, and monitors the seepage pressure entering the pipe through the seepage pressure inlet hole to realize the monitoring and feedback of the seepage pressure of the dam; The grouting device is used to grout the ant nest cavity in the dam through the grouting holes of the seepage pressure monitoring tube.

2. A termite control dam structure as claimed in claim 1, characterized in that: The termite trapping device comprises a shell fixed on the outer wall of the upper section of the seepage monitoring tube, a receiving space is formed between the shell and the seepage monitoring tube, a trapping hole is opened on the shell wall of the shell, and a trapping bag, a bait wood and a monitoring module are arranged in the receiving space; The bait wood is used to lure termites in the dam into the accommodation space through the lure holes; The trapping bag traps and kills termites that enter the accommodation space; The monitoring module is used to monitor the ant infestation situation in the accommodation space in real time and to generate an alarm.

3. A termite control dam structure as claimed in claim 2, characterized in that: The upper part of the accommodation space is open and provided with a cover plate, and the accommodation space is connected and disconnected with the outside of the dam by opening and closing the cover plate.

4. The termite control dam structure according to claim 1, characterized in that: The osmotic pressure monitoring device comprises an osmometer, a cable and a cable tube; The osmometer is arranged inside the lower section of the osmotic pressure monitoring tube and is used to monitor the seepage pressure entering the tube through the osmotic pressure inlet hole; The cable pipe is arranged at the upper section of the seepage pressure monitoring pipe, one end of the cable pipe is located inside the seepage pressure monitoring pipe, and the other end is located outside the seepage pressure monitoring pipe and extends to the management room of the dam; The lower end of the cable is electrically connected to the piezometer, and the upper end is guided into the management room through a cable pipe for electrical connection; the cable includes cable segment one and cable segment two, cable segment one is located in the osmosis pressure monitoring pipe, and cable segment two is located in the cable pipe, and cable segment one and cable segment two are connected by a cable connector.

5. The termite control dam structure according to claim 1, characterized in that: The grouting device comprises a grout inlet pipe, a sealing ring and a grout outlet pipe; The closed ring is arranged inside the middle section of the seepage pressure monitoring pipe when grouting is required. The closed ring includes an upper closed ring and a lower closed ring. The distance between the upper and lower closed rings is used to control the elevation of grouting. The slurry outlet pipe is arranged between the upper and lower closed circles, and a slurry outlet hole is arranged on the wall of the slurry outlet pipe; One end of the slurry inlet pipe is used to connect to the grouting equipment, and the other end enters the seepage pressure monitoring pipe and passes through the upper closed ring to communicate with the slurry outlet pipe.

6. A termite control dam structure as claimed in claim 5, characterized in that: The slurry outlet holes on the slurry outlet pipe are arranged in a plum blossom shape on the pipe surface.

7. The termite control dam structure according to claim 1, characterized in that: The grouting holes and / or seepage pressure water inlet holes on the seepage pressure monitoring pipe are arranged in a plum blossom shape on the pipe surface.

8. The termite control dam structure according to claim 1, characterized in that: The number of termite control devices arranged on each of the dam sections is no less than 3.

9. The termite control dam structure according to claim 1, characterized in that: A cover plate is arranged on the top of the seepage pressure monitoring pipe, and the pipe is connected and disconnected with the outside of the dam by opening and closing the cover plate.

10. A method for controlling termites based on the termite control dam structure according to any one of claims 1 to 9, characterized in that: During the daily operation of the dam, the seepage pressure monitoring device monitors the seepage pressure of the dam in real time, and the termite trapping device monitors the termite infestation in real time; when the severity of the termite infestation of the dam and / or the abnormal degree of water pressure in the dam exceeds the threshold, grouting prevention and control measures are taken, and the grouting prevention and control measures include the following steps: Unplug the cable connector of the osmotic pressure monitoring device and take out the osmometer and the cable segment; Place the lower sealing ring, the slurry outlet pipe, the upper sealing ring and the slurry inlet pipe into the seepage pressure monitoring pipe in sequence, connect the upper end of the slurry outlet pipe with the lower end of the slurry inlet pipe, and connect the upper end of the slurry inlet pipe with the grouting equipment; Grouting; After the grouting is completed, the grouting device is removed and the seepage pressure monitoring pipe is fully flushed; Reinstall the osmotic pressure monitoring device.

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