Installation device for underground water-sealed cave depot osmometer

Abstract

The utility model provides a mounting device for an osmometer of an underground water-sealed cave depot, which relates to the technical field of osmometer mounting and comprises a pressure pump and a water pressure pump. The water pressure pump is connected with the pressurizing pump through a pressurizing pipe; the water pressure pump is sleeved with a sealing plug. The pressure pump controls the expansion of the sealing plug through the console; a base is mounted on the water pressure pump and is used for mounting the osmometer; in an initial state, the sealing plug is in a contraction state, the osmometer mounting device is formed by arranging the pressure pump, the water pressure pump and the sealing plug, the volume of the sealing plug is increased through flushing pressurization, contraction and expansion of the sealing plug are achieved, and then stability of the osmometer after entering a drill hole is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of piezometer installation, in particular to an installation device for an piezometer of an underground water-sealed cavern. Background Art

[0002] The water pressure of the water curtain system needs to be monitored during the construction and operation periods of the underground water-sealed cavern project. During the monitoring, holes need to be constructed in the water curtain tunnel, and piezometers need to be installed in the holes to measure the water head value in real time, thereby calculating the groundwater level.

[0003] The holes for installing the piezometer are mainly horizontal holes. The current installation method is to wrap the piezometer sensor with gauze and fine sand, place it at a certain depth in the borehole, and then fill the entire sensor and the surrounding area with sand to fix the piezometer probe so that it cannot move. However, due to the small diameter of the borehole, the sand filling is carried out at a certain depth in the hole, and it is difficult to control the position of the piezometer probe so that it does not move, which is not conducive to the piezometer to measure the head value in real time. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an installation device for an osmometer of an underground water-sealed cavern, which solves the problem of low stability of real-time monitoring of the osmometer.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] In the utility model, the installation device includes a pressure pump and a water pressure pump;

[0009] The water pressure pump is connected to the pressure pump through a pressure pipe;

[0010] The water pressure pump is sleeved with a sealing plug;

[0011] The pressure pump controls the expansion of the plug through the control console;

[0012] The water pressure pump is provided with a base for installing an osmometer;

[0013] In the initial state, the plug is in a contracted state.

[0014] Furthermore, a connecting guide rod is provided at one end of the water pressure pump away from the base, and the connecting guide rod is detachably connected to the water pressure pump.

[0015] Furthermore, the connecting guide rod is hollow and is provided with a wire threading groove.

[0016] Furthermore, threading tubes are respectively provided at both ends of the water pressure pump, the base is connected to the water pressure pump through one of the threading tubes, the connecting guide rod is connected to the water pressure pump through the other threading tube, the base includes a connecting piece and a first insert pipe fixedly connected to the connecting piece, the base is detachably connected to the water pressure pump through the connecting piece, and the osmometer is connected to the detachable connecting piece through a nut.

[0017] Furthermore, a waterproof rubber ring is sleeved on the first insert pipe, and the nut is sleeved on the waterproof rubber ring and is threadedly connected to the water pressure pump.

[0018] Furthermore, a second insert pipe is installed at one end of the connector away from the first insert pipe, the outer diameter of the second insert pipe is matched with the inner diameter of the through hole of the hydraulic pump, and the second insert pipe is inserted into the through hole and threadedly connected to the hydraulic pump.

[0019] Furthermore, a friction layer is provided at one end of the first plug tube away from the connecting piece, and the waterproof rubber ring is sleeved on the first plug tube through the friction layer.

[0020] (III) Beneficial effects

[0021] The utility model provides an installation device for an underground water-sealed cavern piezometer. Compared with the prior art, it has the following beneficial effects:

[0022] A pressure pump, a water pressure pump and a plug are provided to form an osmometer installation device. The volume of the plug is expanded by flushing water and pressurizing the plug to achieve contraction and expansion, thereby achieving stability of the osmometer after entering the borehole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A stereoscopic diagram of a piezometer installation device for underground water-sealed caverns;

[0025] Figure 2 for Figure 1 A top view of

[0026] Figure 3 for Figure 1 A schematic diagram of the structure of the connecting guide rod;

[0027] Figure 4 for Figure 1 Exploded view of the center base.

[0028] Reference numerals:

[0029] 10. Pressure pump; 11. Control panel; 20. Water pressure pump; 201. Plug; 21. Pressure pipe; 22. Threading pipe; 23. Connecting guide rod; 231. Threading groove; 24. Base; 241. Nut; 242. Waterproof rubber ring; 243. Friction layer; 244. First plug; 245. Connector; 246. Second plug. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The embodiment of the present application solves the problem of low stability of the piezometer during real-time monitoring by providing an installation device for the piezometer of an underground water-sealed cavern, thereby facilitating the piezometer to measure the water head value in real time.

[0032] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0033] At present, the holes for installing piezometers are mainly horizontal holes. In the prior art, the installation method of the piezometer is to wrap the piezometer sensor with gauze and fine sand, place it to a certain depth in the drill hole, and then fill the entire sensor and the surrounding area with sand to fix the piezometer probe so that it cannot move. While filling the sand, it is also necessary to ensure that the piezometer can fully contact with water, and then fill the back of the piezometer with bentonite or a plastic waterproof material with similar properties as a waterproof layer, and finally use cement mortar to seal the water curtain hole.

[0034] During the installation of the underground water-sealed cavern piezometer, due to the large amount of water seepage due to the development of rock fissures, the installation borehole was in a gushing state, and the piezometer could not be pushed to the designated position, nor could it be filled with sand and fixed, so the installation could not be completed. After the inventor and all parties discussed and surveyed, a shallow hole drill was first used to construct a water diversion hole near the hole. After the water in the monitoring borehole was led out, the piezometer was barely pushed to the designated position with the assistance of steel bars, and filled with sand and bentonite. However, since the water could not be completely led out of the water diversion hole, the filling sand was washed away by the water, the installation was not dense, and a lot of time was spent. After the installation, the rear grouting and waiting for the slurry to finally set took a day, and then the water diversion hole was installed with a plug to seal it, which took a long time, wasting the plug, hiring a down-the-hole drill to drill holes, and wasting time. In addition, the installation quality could not be controlled. At the same time, due to the long water diversion and pressure relief time, the groundwater level dropped in the short term and the water accumulation in the tunnel increased. Therefore, after repeated analysis, research and field tests, combined with the actual situation on site and the installation requirements of the piezometer, we designed and found a factory to process the device, which solved the problem of large borehole seepage that could not be installed, and achieved very good results when used on site.

[0035] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Example:

[0037] like Figure 1-Figure 2 As shown, an installation device for an underground water-sealed cavern piezometer comprises a booster pump 10 and a water pressure pump 20;

[0038] The water pressure pump 20 is connected to the pressure pump 10 via a pressure pipe 21;

[0039] The water pressure pump 20 is provided with a sealing plug 201;

[0040] The pressure pump 10 controls the expansion of the plug 201 through the control console 11;

[0041] The hydraulic pump 20 is provided with a base 24 for installing an osmometer;

[0042] In the initial state, the plug 201 is in a contracted state.

[0043] Specifically, the pressurizing tube 21 is a connecting tube that uses the pressurizing pump 10 to pressurize the plug 201. The tube body itself should ensure that it will not burst during the pressurization process and have good pressure resistance. The pipe mouth connection between the plug 201 and the pressurizing pump 10 should not fall off easily to ensure normal pressurization.

[0044] By setting up a pressure pump 10, a water pressure pump 20 and a plug 201, a piezometer installation device is formed. The volume of the plug 201 is expanded by flushing water and pressurizing, so that the plug 201 can be contracted and expanded, thereby achieving stability of the piezometer after entering the borehole.

[0045] The plug 201 has good pressure resistance and wear resistance. After pressurization, the entire device can be firmly fixed in the drilled hole, ensuring that it can be stable and not slip even when there is a large water pressure in the hole, thereby ensuring the sealing of the installation.

[0046] Specifically, the base 24 is detachably connected to the pressure pump 20, which facilitates the installation operation of the osmometer.

[0047] like Figure 3 As shown, a connecting guide rod 23 is provided at one end of the water pressure pump 20 away from the base 24. The connecting guide rod 23 can increase the length of the water pressure pump 20. When in use, the water pressure pump 20 is pushed by the connecting guide rod 23 to drive the movement of the piezometer, thereby facilitating the piezometer to enter a deeper borehole.

[0048] The connecting guide rod 23 is detachably connected to the hydraulic pump 20, so that it is convenient to replace the connecting guide rods 23 of different lengths to meet the requirements of drilling holes of different depths.

[0049] The connecting guide rod 23 is hollow and has a wire threading groove 231. The wire threading groove 231 facilitates the pulling out of the electric cable on the piezometer through the wire threading groove 231, thereby preventing the connecting guide rod 23 from squeezing the electric cable when pushing the hydraulic pump 20.

[0050] Specifically, the connecting guide rod 23 is a solid steel bar with strong rigidity.

[0051] like Figure 4 As shown, both ends of the water pressure pump 20 are respectively provided with threading tubes 22, the base 24 is connected to the water pressure pump 20 through one of the threading tubes 22, the connecting guide rod 23 is connected to the water pressure pump 20 through another threading tube 22, the base 24 includes a connecting piece 245 and a first inserting pipe 244 fixedly connected to the connecting piece 245, the base 24 is detachably connected to the water pressure pump 20 through the connecting piece 245, and the osmometer is detachably connected to the connecting piece 245 through a nut 241, so as to realize the convenient installation of the osmometer.

[0052] Specifically, the connecting member 245 is threadedly connected to the pressure pump 20 , thereby facilitating replacement of the connecting member 245 .

[0053] The first insert pipe 244 is sleeved with a waterproof rubber ring 242 , and the nut 241 is sleeved on the waterproof rubber ring 242 and is threadedly connected to the water pressure pump 20 .

[0054] A waterproof rubber ring 242 sealing device is provided at the base 24, thereby preventing water seepage and effectively ensuring the smooth lead-out of the piezometer cable. After the rear end of the piezometer is inserted into the base, the nut 241 is tightened to complete the fixation of the piezometer, which can not only fix the piezometer probe to make it stable and suspended in the air, but also prevent water from seeping out through the interface.

[0055] A second insert pipe 246 is installed at one end of the connector 245 away from the first insert pipe 244 . The outer diameter of the second insert pipe 246 matches the inner diameter of the through hole of the hydraulic pump 20 . The second insert pipe 246 is inserted into the through hole and is threadedly connected to the hydraulic pump 20 .

[0056] A friction layer 243 is provided at one end of the first inserting tube 244 away from the connecting piece 245 , and the waterproof rubber ring 242 is sleeved on the first inserting tube 244 through the friction layer 243 . The friction layer 243 is provided to improve the sealing between the waterproof rubber ring 242 and the base 24 .

[0057] When in use, the piezometer is installed on the water pressure pump 20 through the base 24. The end of the water pressure pump 20 on which the piezometer is installed is first inserted into the borehole. After the detection end of the piezometer reaches the corresponding position, the pressure pump 10 is controlled by the control console 11 to pressurize and expand the plug 201. After use, the electrical cable on the piezometer is passed through the base 24, the water pressure pump 20 and the connecting guide rod 23, and pulled out through the wire groove 231 on the connecting guide rod 23.

[0058] When using the control console 11, first, by holding the device with the piezometer installed, push it to the specified depth position in the borehole, and then use the pressure pump 10 to pressurize the device to expand the plug 201, so as to effectively isolate the inside and outside of the hole, and the grouting and plugging at the rear end will not cause any impact; in this way, the piezometer is fixed, and because the device is in a non-pressurized and expanded state when it is pushed into the hole, its diameter is smaller than the hole diameter of the installation hole, so it is easy to push, and it will not be affected even if the borehole seeps water;

[0059] The use of this device eliminates the steps of sand filling and probe wrapping, and overcomes the defects such as large amount of water seepage in the hole that cannot be installed, difficult to fix the probe position, low installation efficiency, difficult to control quality, and possible risk of grouting blockage.

[0060] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0061] 1. The device solves the problem that the borehole has a large amount of water and cannot be installed or is difficult to install. It has high installation efficiency and is convenient to install. It no longer needs fillers or waterproof materials. After using the device, the piezometer is suspended in the borehole, and the piezometer is no longer wrapped with permeable materials. The suitability of the monitoring environment is greatly improved, which is conducive to ensuring the accuracy of the monitoring results.

[0062] 3. The device is easy to operate. You only need to fix the piezometer, push the device to the installation position, and apply pressure to stop the pressure. The device can be used by at least one person, which greatly saves human resources and thus saves labor costs.

[0063] 4. The device can be used for the installation of borehole piezometers of various angles, water seepage sizes, and apertures, and can meet installation requirements in complex environments such as water gushing in the hole, horizontal holes, inclined holes, etc.

[0064] 5. The device has the characteristics of regular and low-priced raw materials required for production, simple manufacturing process and easy use.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An installation device for an underground water-sealed cavern piezometer, characterized in that: It comprises a pressure pump (10) and a water pressure pump (20); The water pressure pump (20) is connected to the pressure pump (10) via a pressure pipe (21); The water pressure pump (20) is sleeved with a sealing plug (201); The pressure pump (10) controls the expansion of the plug (201) through the control console (11); The hydraulic pump (20) is provided with a base (24) for installing an osmometer; In the initial state, the plug (201) is in a contracted state.

2. The installation device for an underground water-sealed cavern piezometer according to claim 1, characterized in that: A connecting guide rod (23) is provided at one end of the water pressure pump (20) away from the base (24), and the connecting guide rod (23) is detachably connected to the water pressure pump (20).

3. The installation device for an underground water-sealed cavern piezometer according to claim 2, characterized in that: The connecting guide rod (23) is hollow and is provided with a wire threading groove (231).

4. The installation device for an underground water-sealed cavern piezometer according to claim 3, characterized in that: Both ends of the water pressure pump (20) are provided with threading tubes (22), respectively; the base (24) is connected to the water pressure pump (20) via one of the threading tubes (22); the connecting guide rod (23) is connected to the water pressure pump (20) via another threading tube (22); the base (24) comprises a connecting piece (245) and a first inserting tube (244) fixedly connected to the connecting piece (245); the base (24) is detachably connected to the water pressure pump (20) via the connecting piece (245); and the osmometer is detachably connected to the connecting piece (245) via a nut (241).

5. The installation device for an underground water-sealed cavern piezometer according to claim 4, characterized in that: The first insert pipe (244) is sleeved with a waterproof rubber ring (242), and the nut (241) is sleeved on the waterproof rubber ring (242) and is threadedly connected to the water pressure pump (20).

6. The installation device for an underground water-sealed cavern piezometer according to claim 5, characterized in that: A second insert pipe (246) is installed at one end of the connecting member (245) away from the first insert pipe (244); the outer diameter of the second insert pipe (246) matches the inner diameter of the through hole of the water pressure pump (20); the second insert pipe (246) is inserted into the through hole and is threadedly connected to the water pressure pump (20).

7. The installation device for an underground water-sealed cavern piezometer according to claim 6, characterized in that: A friction layer (243) is provided at one end of the first inserting tube (244) away from the connecting piece (245), and the waterproof rubber ring (242) is sleeved on the first inserting tube (244) through the friction layer (243).

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