A water sample collection device for seepage water of tunnel lining

Abstract

The present invention relates to the technical field of collecting water samples of seepage water in tunnel lining concrete structures, and specifically discloses an automatic device for collecting water samples of seepage water in tunnel linings, which includes a protective shell, a fixing member arranged in the protective shell, a water storage container fixed by the fixing member, a water sample collector provided with an inner cavity, and a water-absorbing sponge compressed and filled in the inner cavity; the protective shell is detachably fixed on the tunnel lining, so that the water storage container and the water sample collector are surrounded in the protective shell; the water sample collector includes a water outlet end provided with a water outlet and a collecting end with an opening, and the collecting end is detachably fixed at the seepage point of the tunnel lining, and the water outlet end is sleeved in the water storage container. By setting the water sample collector and the open end is detachably fixed at the seepage point, the water-absorbing sponge absorbs the seepage water sample, and the water sample drips into the water sample collector under the action of its own weight and artificial low pressure, realizing the collection of the water sample.

Description

Technical Field

[0001] The present invention relates to the technical field of water sample collection for seepage water in tunnel lining concrete structures, and particularly relates to a water sample collection device for seepage water in tunnel linings. Background Art

[0002] Tunnel lining concrete structures are generally under the cover of strata and surrounding rocks and are often affected by various underground erosion factors. Once damaged, they are not easy to repair and reinforce. As one of the most widespread harmful factors, groundwater has an adverse impact on the durability of tunnel lining concrete structures. Therefore, it is very important to understand the concentrations of harmful components such as chloride ions and sulfate ions in the seepage water of tunnel lining structures.

[0003] When the seepage water flow in the tunnel is large, or the flow is small and there are water drops falling, the direct collection method can be used. If the flow is small and the seepage water flows along the inner wall of the lining, it is difficult to collect by the traditional collection method. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a water sample collection device for seepage water in tunnel linings. This device can collect the seepage water flowing along the inner wall of the lining and block impurities such as crushed lime slag in the seepage water.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A water sample collection device for seepage water in tunnel linings includes: a protective shell, a fixing member arranged in the protective shell, a water storage container fixed by the fixing member, a water sample collector provided with an inner cavity, and a water-absorbing sponge compressed and filled in the inner cavity; the protective shell is detachably fixed on the tunnel lining, and the water storage container and the water sample collector are surrounded in the protective shell; the water sample collector includes a water outlet end provided with a water outlet and a collection end with an open end, the collection end is detachably fixed at the seepage point of the tunnel lining, and the water outlet end is sleeved in the water storage container.

[0007] Compared with the prior art, by setting a water sample collector with a water-absorbing sponge compressed inside, when the open end of the collector is detachably fixed at the seepage point of the tunnel lining, the water-absorbing sponge tightly adheres to the seepage point due to its own elastic expansion, so that the seepage water is immediately absorbed by the water-absorbing sponge when it overflows. The water sample absorbed in the water-absorbing sponge drips into the water sample collector from the water outlet of the water sample collector under the action of its own gravity and the artificial low pressure created by the micro vacuum pump, thereby realizing the collection of the seepage water sample.

[0008] Preferably, the water sample collector includes a conical part and a corrugated elastic part; the bottom end of the conical part and the corrugated elastic part are integrally formed; the water outlet is arranged at the top end of the conical part, and the collection end of the water sample collector is the end of the corrugated elastic part.

[0009] Preferably, an annular sealing ring is arranged on the outer wall of the conical part, and an annular groove is arranged on one side of the sealing ring in the same direction as the water outlet;

[0010] Preferably, the fixing part is made of plastic foam, and the water container is partially buried in the fixing part.

[0011] Preferably, the protective shell includes a box body with one side open, and the opening of the protective shell is fixed on the tunnel lining.

[0012] Preferably, a fixing edge extends outward from the opening of the protective shell, bolt holes are arranged on the fixing edge, and the protective shell is fixed on the tunnel lining by bolts.

[0013] Preferably, one side of the opening edge of the protective shell is hinged to the protective shell in a liftable manner.

[0014] Preferably, it further includes an air duct, a micro vacuum pump, and an air check valve; one end of the air duct is communicated with the inside of the water container, and the other end is connected to the micro vacuum pump; the air check valve is arranged on the air duct.

[0015] Preferably, it further includes a cooling ventilation pipe; through holes are arranged on the protective shell; one end of the cooling ventilation pipe is connected to the micro vacuum pump, and one end is arranged in the through holes.

[0016] Preferably, it further includes a signal discriminator, a wireless signal transmitter, and a water level detection sensor arranged in the water container; the water level detection sensor is used to detect the water level in the water container;

[0017] The signal discriminator is used to send a notification signal when receiving the water level signal; the wireless signal transmitter is used to receive the notification signal and transmit it to the human-computer interaction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0019] Figure 1 is a schematic structural diagram of the present invention installed on the tunnel lining;

[0020] Figure 2 is a schematic structural diagram of the present invention installed at different positions of the tunnel lining;

[0021] Figure 3 It is a schematic structural diagram of the present invention installed at different positions of tunnel linings;

[0022] Figure 4 It is a schematic structural diagram of a water sample collector;

[0023] Figure 5 is Figure 4 a half-sectional view of

[0024] Figure 6 It is a schematic structural diagram of a protective shell;

[0025] In the figure:

[0026] 2. Fixing member; 3. Water container; 4. Water sample collector; 41. Sealing ring; 42. Cone part; 43. Folded elastic part; 44. Water outlet of the water sample collector; 45. Annular groove; 5. Absorbent sponge; 6. Lining; 7. Air duct; 8. Micro vacuum pump; 9. Air check valve; 10. Cooling ventilation pipe; 11. Signal discriminator; 12. Wireless signal transmitter; 13. Water level detection sensor; 14. Bolt; 15. Protective shell; 151. Fixed edge; 152. Bolt hole; 153. Lid; 154. Through hole. Specific embodiments

[0027] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] As Figures 1 - 6 shown, the present invention provides a device for collecting seepage water samples of a tunnel lining 6, including: a protective shell 15, a fixing member 2 disposed within the protective shell 15, a water container 3 fixed by the fixing member 2, and a water sample collector 4 having an inner cavity, and an absorbent sponge 5 compressed and filled within the inner cavity of the water sample collector 4; the protective shell 15 is detachably fixed to the tunnel lining 6 such that the water container 3 and the water sample collector 4 are surrounded within the protective shell 15; the water sample collector 4 includes a water outlet end provided with a water outlet and a collection end with one end open, the collection end is detachably fixed at the seepage point of the tunnel lining 6, and the water outlet end is sleeved within the water container 3.

[0029] Compared with the prior art, in the present invention, by providing a water sample collector 4 with a water-absorbing sponge 5 compressed therein, when the open end of the collector is detachably fixed at the water seepage point of the tunnel lining 6, the water-absorbing sponge 5 closely adheres to the water seepage point due to its own elastic expansion effect, so that when the seepage water overflows, it is immediately absorbed by the water-absorbing sponge 5. The water sample absorbed in the water-absorbing sponge 5 drips into the water sample collector 4 from the water outlet 44 of the water sample collector under the action of its own gravity, thereby realizing the collection of the seepage water sample. By installing the water sample collector 4 at the water seepage point, in-situ collection of the seepage of the tunnel lining 6 is realized, avoiding the seepage water flowing along the inner wall and mixing with other impurities to cause pollution of the water sample, ensuring that the seepage water is collected immediately upon emergence, and at the same time, blocking impurities such as broken lime slag carried by the flowing water that do not belong to the scope of water sample collection outside.

[0030] When not compressed, the shape of the water-absorbing sponge 5 is the same as the shape of the inner cavity of the water sample collector 4, and it is optimal that the volume of the shape of the water-absorbing sponge 5 is larger than the internal space surrounded by the inner cavity of the water sample collector 4 and the inner wall of the lining 6 structure, so that the water-absorbing sponge 5 can still closely adhere to the lining 6 after absorbing water and shrinking, and the seepage water can be absorbed by the sponge immediately after flowing out.

[0031] As Figure 4 、 5 As shown, the water sample collector 4 includes a cone part 42 and a corrugated elastic part 43; the bottom of the cone part 42 and the corrugated elastic part 43 are integrally formed; the water outlet 44 is arranged at the top of the cone part 42, and the collection end of the water sample collector 4 is the corrugated elastic part 43 end.

[0032] The water sample collector 4 (or special-shaped funnel) includes a cone part 42 and a corrugated elastic part 43. Specifically, the water sample collector 4 is composed of an undeformable cone part 42 and a corrugated elastic part. Since the corrugated elastic part 43 can elastically expand and contract, the corrugated elastic part 43 can change its overall shape or size by partially stretching or compressing, so that it can adapt to different arcs at different positions of the lining 6 and be fixed on the lining 6, creating a relatively independent space and blocking external dust, keeping the water sample collection environment clean and pollution-free. See Figure 1 、 2 、3. Preferably, the collection end of the water sample collector is fixed on the lining 6 by pasting.

[0033] A circular ring-shaped sealing ring 41 is arranged on the outer wall of the cone part 42, and an annular groove 45 is arranged on one side of the sealing ring 41 in the same direction as the water outlet; the water container 3 includes an open end, and the open end of the water container 3 is nested in the annular groove 45.

[0034] The water-containing container 3 is preferably in the shape of a cup and made of glass or plastic. The cup mouth of the cup-shaped water-containing container 3 is the open end of the water-containing container 3. At the same time, the water-containing container 3 made of glass or plastic can avoid chemical reactions with seepage water and cause distortion of the water sample.

[0035] The sealing ring 41 is made of rubber-like material, has good elasticity, and is firmly bonded to the special-shaped funnel 21. The annular groove 45 provided at its end can be inserted and connected to the cup mouth of the cup-shaped water-containing container 3. The width of the annular groove 45 is smaller than the thickness of the wall of the water-containing container 3, so that the water-containing container 3 can be tightly connected to the water sample collector.

[0036] Such as Figure 6 As shown, the protective shell 15 includes a box body with an open side, and the opening of the protective shell 15 is fixed on the tunnel lining 6.

[0037] Preferably, the opening of the protective shell 15 extends outward with a fixed edge 151, and bolt 14 holes 152 are provided on the fixed edge 151. The protective shell 15 is fixed on the tunnel lining 6 by bolts 14; one side of the opening edge of the protective shell 15 is hinged to the protective shell 15 in a liftable manner, that is, the lid 153 of the protective shell 15.

[0038] Among them, the protective shell 15 is preferably made of transparent organic glass, and the protective shell 15 can protect other internal components from damage.

[0039] Such as Figures 1 - 3 As shown, the present invention further includes an air extraction device, specifically including an air duct 7, a micro vacuum pump 8, and an air check valve 9; one end of the air duct 7 is communicated with the inside of the water-containing container 3, and the other end is connected to the micro vacuum pump 8; the air check valve 9 is arranged on the air duct 7. Among them, a cooling ventilation pipe 10 is further included; a through hole 154 is provided on the protective shell 15; one end of the cooling ventilation pipe 10 is connected to the micro vacuum pump 8, and one end is arranged in the through hole 154.

[0040] Such as Figures 1 - 3As shown, the present invention also includes a signal sending device, specifically including a signal discriminator 11, a wireless signal transmitter 12, and a water level detection sensor 13 for detecting the water level in the water container 3; the water level detection sensor 13 is arranged in the water container 3, and is used to send a water level signal when it contacts the water sample; the signal discriminator 11 is used to send a notification signal when receiving the water level signal; the wireless signal transmitter 12 is used to receive the notification signal and transmit it to the human-computer interaction device. Among them, the signal discriminator 11 also sends a stop signal when receiving the water level signal, and the micro vacuum pump 8 stops working when receiving the stop signal. The above-mentioned signal sending device can reduce the on-site stationing work of the staff, so the labor cost is greatly reduced.

[0041] Specifically, Figures 1 - 5 As shown, the water level detection sensor 13 is preferably a water level detection needle. A small hole for inserting the air duct 7 is reserved at the upper end of the cup-shaped water container 3. A small hole for inserting the water level detection sensor 13 is also reserved. The surfaces of the two small holes are covered with rubber films. After the air duct 7 or the water level detection sensor 13 is inserted into the corresponding small holes, the rubber film can tightly wrap the inserted air duct 7 or water level detection sensor 13, thereby preventing air from flowing along the gap between the air duct 7 or the water level detection sensor 13 and the reserved small holes.

[0042] The air conduit 7 is a passage for the air inside the water container 3 to flow outside the water container 3. The function of the air check valve 9 is to prevent the air from entering the water container 3 along the air conduit 7, that is, the air "can only go out but not in". The micro vacuum pump 8 can create an air pressure environment inside the water container 3 that is lower than the external air pressure, so that the leaked water collected by the water-absorbing sponge 5 in the water sample collector 4 can be accelerated to gather inside the water container 3. The cooling ventilation pipe 10 is used to discharge the gas extracted by the micro vacuum pump 8 and the heat released by itself when it is working out of the device of the present invention, so as to ensure the working performance of the micro vacuum pump 8.

[0043] By creating a low-pressure space through the micro vacuum pump 8, the collection of leaked water can be accelerated, and the automatic collection function can be realized.

[0044] The micro vacuum pump 8 comes with a DC battery, and the power supply can be shared by the water level detection sensor 13, the signal discriminator 11, and the wireless signal transmitter 37. That is, the micro vacuum pump 8, the water level detection sensor 13, and the signal discriminator 11 are electrically connected. When the probe of the water level detection sensor 13 touches the water sample (i.e., when the water sample sampling volume reaches the requirement), its internal circuit will be activated, and then an electrical signal will be released and transmitted to the signal discriminator 11; after receiving the electrical signal, the signal discriminator 11 immediately issues an order to stop the micro vacuum pump 8 and issues an order to start working to the wireless signal transmitter. The wireless signal transmitter emits a signal to the outside, and the signal receiving end can receive a notice that the water sample collection is completed.

[0045] When the water level of the water sample reaches the probe of the water level detection sensor 13, the water sample collection is completed, and the micro vacuum pump 8 immediately stops working. At the same time, the wireless signal transmitter 7 emits a signal to the outside, and the signal receiving end can receive a notice that the water sample collection is completed. The staff arrives at the scene to disassemble the sampling device and take out the sample.

[0046] As Figures 1 - 3 shown, the fixing member 2 is made of plastic foam, and a part of the water container 3 is buried in the fixing member 2.

[0047] The plastic foam inside the protective shell 15 can play a role in heat insulation and heat preservation, effectively avoiding the changes in the pH value and ion concentration of the water sample caused by the volatilization of the water in the water container 3 during the long-term collection process, and ensuring the original characteristics of the water sample.

[0048] Specifically, as Figures 1 - 3 shown, the plastic foam serves as the heat insulation and support structure of the water container 3. On the one hand, it can keep the environment where the water container 3 is located at a constant temperature, so that the water sample basically maintains its original characteristics. On the other hand, it is used to fix the water container 3, the air duct 7, the air check valve 9, the micro vacuum pump 8, the cooling ventilation pipe 10, and the signal discriminator 11. The plastic foam is only used for one water sample collection, and the replacement is simple and the cost is low. The advantage is that it can adapt to different water sampling positions and adjust the positions of the water container 3, the air duct 7, the air check valve 9, the micro vacuum pump 8, the cooling ventilation pipe 104, and the signal discriminator 11 according to the different installation angles of the sampling device, achieving the purpose of flexible layout and on-demand modification.

[0049] In the present invention, by setting up a water level sensor and a signal discriminator 11 to control the shutdown timing of the micro vacuum pump 8, and by using a wireless transmitter to notify the sampler of the signal that the water sample collection is completed, the functions of automatic shutdown and automatic notification are realized.

[0050] The present invention is not limited to the above embodiments. If various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, and provided that these modifications and variations are within the scope of the claims of the present invention and equivalent technical scope, then the present invention also intends to encompass these modifications and changes.

Claims

1. A water sample collection device for seepage water of a tunnel lining, characterized in that, Including: A protective case, a fixing member disposed within the protective case, a water container fixed by the fixing member, a water sample collector provided with an inner cavity, and a water-absorbing sponge compressed and filled within the inner cavity; The protective case is detachably fixed to the tunnel lining, and the water container and the water sample collector are enclosed within the protective case; The water sample collector includes a water outlet end provided with a water outlet and a collection end with an open end, and the collection end is detachably fixed at the seepage point of the tunnel lining, and the water outlet end is sleeved within the water container; The fixing member is made of plastic foam, and the water container is partially buried within the fixing member; The protective case includes a box body with one side open, and the opening of the protective case is fixed to the tunnel lining; The water sample collector includes a conical portion and a pleated elastic portion; The bottom end of the conical portion and the pleated elastic portion are integrally formed; The water outlet is provided at the top end of the conical portion, and the collection end of the water sample collector is the pleated elastic portion end.

2. The water sample collection device for seepage water of tunnel lining according to claim 1, wherein, An annular sealing ring is provided on the outer wall of the conical portion, and an annular groove is provided on one side of the sealing ring in the same direction as the water outlet; The water container includes an open end, and the open end of the water container is nested within the annular groove.

3. The water sample collection device for seepage water of tunnel lining according to claim 1, characterized in that, A fixing edge extends outward from the opening of the protective case, and bolt holes are provided on the fixing edge, and the protective case is fixed to the tunnel lining by bolts.

4. The water sample collection device for the leakage water of the tunnel lining according to claim 1, characterized in that One side of the opening edge of the protective case is hingedly connected to the protective case in a liftable manner.

5. The water sample collection device for the seepage and leakage of the tunnel lining according to any one of claims 1 to 4, characterized in that, Also included are an air duct, a micro vacuum pump, and an air check valve; One end of the air duct is in communication with the inside of the water container, and the other end is connected to the micro vacuum pump; The air check valve is provided on the air duct.

6. The water sample collection device for seepage water of a tunnel lining according to claim 5, characterized in that Also included is a cooling ventilation pipe; through holes are provided on the protective case; One end of the cooling ventilation pipe is connected to the micro vacuum pump, and one end is disposed within the through hole.

7. The water sample collection device for seepage water of tunnel lining according to any one of claims 1 to 4, characterized in that, Also included are a signal discriminator, a wireless signal transmitter, and a water level detection sensor for detecting the water level within the water container; The water level detection sensor is configured to emit a water level signal when coming into contact with the water sample; The signal discriminator is configured to emit a notification signal when receiving the water level signal; The wireless signal transmitter is configured to receive the notification signal and transmit it to the human-machine interaction device.

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