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CN-116296045-B - Buried device and buried osmometer

CN116296045BCN 116296045 BCN116296045 BCN 116296045BCN-116296045-B

Abstract

The application relates to the technical field of seepage pressure measurement, in particular to an embedded device and an embedded osmometer for an underwater tunnel environment. According to the embedded device, the second sealing section and the lining drilling hole can be sealed after the water blocking cavity pipe is driven into the lining drilling hole, the first sealing section can also be sealed with the lining drilling hole under the condition of increasing water pressure, and the sealing performance and the friction performance of the first sealing section and the second sealing section are increased along with the increase of the water pressure, so that the effect of self-locking when meeting water is achieved to a certain extent. The embedded device has stronger seepage prevention performance when the water pressure is larger, solves the problem of monitoring the water pressure of the outer ring of the tunnel lining, can screw out the sealing cover from the water shutoff cavity pipe when monitoring the water pressure in real time, can be used as a pressure relief hole, reduces the design of the pressure relief hole, and avoids the adverse effect of excessive punching on the tunnel lining.

Inventors

  • DING FEI
  • Shen Guokui
  • WU JIE
  • ZHANG SHUAI
  • DENG MEILONG
  • ZHU YAN

Assignees

  • 中国建筑一局(集团)有限公司

Dates

Publication Date
20260508
Application Date
20230321

Claims (8)

  1. 1. An embedment device, comprising: A water blocking cavity pipe (110) which is used for being placed in a lining drill hole (310), wherein the inside of the water blocking cavity pipe (110) is used for being placed with an osmometer (20); An elastomeric seal (120), comprising: The first sealing section (121) is sleeved on the outer pipe wall (111) of the water shutoff cavity pipe (110) and is in sealing connection with the outer pipe wall (111); a second sealing section (122) comprising a sealing part (122 a) for sealing connection with the lining drilling hole (310), wherein the second sealing section (122) is sleeved on the outer pipe wall (111) and extends along a direction away from the first sealing section (121), the elastic sealing piece (120) and the outer pipe wall (111) form a sealing cavity (123), and the sealing cavity (123) is provided with a first opening, and the first opening faces the direction of surrounding rock (40); The water shutoff cavity pipe (110) and the elastic sealing piece (120) are matched, namely, after the water shutoff cavity pipe (110) is placed in the lining drilling hole (310), the sealing part (122 a) is extruded by the lining drilling hole (310) to form a first seal and a first friction force with the lining drilling hole (310), water seepage penetrating from the surrounding rock (40) forms water pressure in the sealing cavity (123) through the first opening, the water pressure acts on the sealing part (122 a), as the water pressure increases, the pressure between the sealing part (122 a) and the lining drilling hole (310) increases, so that the sealing performance of the first seal between the sealing part (122 a) and the lining drilling hole (310) is improved to prevent the increased water seepage from the lining drilling hole (310), and the pressure between the sealing part (122 a) and the lining drilling hole (310) is increased to further increase the first friction force to prevent the water shutoff cavity pipe (110) from leaking out of the lining drilling hole (310) in the process of increasing water pressure gradually; a deformation part is formed between the first sealing section (121) and the second sealing section (122), the deformation part and the lining drill hole (310) form a deformation cavity (124), the deformation cavity (124) is provided with a second opening, and the second opening is away from the direction of the surrounding rock (40); The water blocking cavity pipe (110) and the elastic sealing piece (120) are also matched and arranged, namely, water pressure is formed in the sealing cavity (123) through the first opening by seepage water penetrating from the surrounding rock (40), the water pressure acts on the deformation part, as the water pressure is increased, air is discharged from the second opening and the deformation part gradually moves towards the direction close to the lining drilling hole (310) and is abutted against the lining drilling hole (310) to form second friction force and second sealing, as the water pressure is increased, the pressure between the deformation part and the lining drilling hole (310) is increased along with the increase of the water pressure, and then the second friction force is increased, so that the water blocking cavity pipe (110) is further prevented from being out of the lining drilling hole (310) in the process of gradually increasing the water pressure, and the sealing performance of the second sealing between the deformation part and the lining drilling hole (310) is improved, and the increased water pressure is further prevented from leaking from the lining drilling hole (310); the water shutoff cavity pipe (110) is characterized in that an adhesive tape (113) is arranged on an inner pipe wall (112) of the water shutoff cavity pipe (110), the adhesive tape (113) is used for limiting the osmometer sleeve (130) when the osmometer sleeve (130) is arranged in the water shutoff cavity pipe (110), the adhesive tape (113) is integrally trapezoidal and is opened relative to the inserting direction of the osmometer sleeve (130), so that the osmometer sleeve (130) is conveniently inserted into the adhesive tape (113), and the upper bottom of the trapezoid is in surface contact with the osmometer sleeve (130).
  2. 2. The burying device according to claim 1, wherein, The water blocking cavity pipe (110) further comprises a limiting piece (117), the limiting piece (117) is sleeved on the outer pipe wall (111), the limiting piece (117) is provided with a third opening used for accommodating the first sealing section (121), the third opening faces to the direction of the surrounding rock (40), when the first sealing section (121) is placed in the third opening, the first sealing section (121) is extruded by the third opening to form a third seal, and therefore seepage of water from the first sealing section (121) and seepage of the third opening are prevented, pressure relief of the sealing cavity (123) is caused, and seepage of water from the lining drilling (310) is prevented.
  3. 3. The burying device according to claim 2, wherein, The distance between adjacent limiting parts (117) is set so that a gap exists between the second sealing section (122) connected with the following limiting part (117) and the preceding limiting part (117) after the second sealing section is stretched, so that the water shutoff cavity pipe (110) is conveniently placed in the lining drilling hole (310).
  4. 4. The burying device according to claim 1, wherein, The number of the elastic sealing elements (120) is multiple, and the elastic sealing elements (120) are arranged along the axis of the water shutoff cavity pipe (110) and are used for forming multiple seals with the lining drilling holes (310) so as to improve the sealing reliability and the stability of the water shutoff cavity pipe (110) in the lining drilling holes (310).
  5. 5. The burying device according to claim 1, wherein, The sealing portion (122 a) comprises a sealing surface for sealing with the lining borehole (310), the shape of the sealing surface being adapted to the lining borehole (310); After the water shutoff cavity pipe (110) is placed in the lining drilling hole (310), the sealing surface is attached to the lining drilling hole (310) so as to form the first seal and the first friction force with the lining drilling hole (310).
  6. 6. The burying device according to claim 1, wherein, The first sealing section (121) is cylindrical, and the second sealing section (122) is bell-mouth-shaped; After the water shutoff cavity pipe (110) is placed in the lining drilling hole (310), the second sealing section (122) is extruded and contracted by the lining drilling hole (310), and the sealing part (122 a) is extruded by the lining drilling hole (310) to form the first sealing and the first friction force with the lining drilling hole (310).
  7. 7. The burying device according to claim 1, wherein, The water blocking cavity pipe (110) is provided with a water seepage access hole (116), the water seepage access hole (116) is positioned below the sealing cavity (123) and is in clearance with the sealing cavity (123) so as to prevent water pressure in the sealing cavity (123) from being released before the water blocking cavity pipe (110) is filled with water seepage, the water seepage access hole (116) is used for reducing or preventing sundries from entering the inside of the water blocking cavity pipe (110), and water seepage enters the inside of the water blocking cavity pipe (110) through the water seepage access hole (116) so as to enable the water seepage gauge (20) to carry out water pressure detection.
  8. 8. An embedded osmometer, characterized by comprising an embedded device according to any one of claims 1-7, and an osmometer (20); The embedded device further comprises an osmometer sleeve (130), wherein the osmometer sleeve (130) is arranged in the water shutoff cavity pipe (110), and the osmometer (20) is arranged in the osmometer sleeve (130).

Description

Buried device and buried osmometer Technical Field The application relates to the technical field of seepage pressure measurement, in particular to an embedded device and an embedded osmometer for an underwater tunnel environment. Background The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. In the long-term use of tunnel, can produce multiple harm, wherein tunnel lining percolating water is comparatively common, and lining percolating water can cause the reinforcing bar corrosion and then reduce lining bearing capacity, and percolating water flows to the road surface and causes the road surface to wet and slide, influences driving safety, and especially in being used for the tunnel environment under water, percolating water condition is more common. Because the tunnel leakage water disease has a huge potential safety hazard, the real-time early warning can be realized by water pressure monitoring, and the tunnel leakage water disease safety is guaranteed. The method for embedding the osmometer can be to drill holes on the ground at the upper part of the tunnel to the outer side of the tunnel lining and then embed the osmometer for water pressure measurement, or to adopt a mode of firstly drilling holes to place the osmometer and then plugging by bentonite or concrete. Disclosure of Invention In view of the above, the present application provides an embedded device and an embedded osmometer, so as to solve one or more technical problems in the related art, and the present application is implemented as follows: in a first aspect, embodiments of the present application provide an embedding apparatus, including: The water shutoff cavity pipe is used for being placed in a lining drill hole, and the inside of the water shutoff cavity pipe is used for being placed with an osmometer; An elastomeric seal comprising: the first sealing section is sleeved on the outer pipe wall of the water shutoff cavity pipe and is in sealing connection with the outer pipe wall; the second sealing section comprises a sealing part used for being in sealing connection with the lining drilling hole, the second sealing section is sleeved on the outer pipe wall and extends in a direction away from the first sealing section, the elastic sealing piece and the outer pipe wall form a sealing cavity, the sealing cavity is provided with a first opening, and the first opening faces the surrounding rock direction; The water blocking cavity pipe and the elastic sealing piece are matched, namely, after the water blocking cavity pipe is arranged in the lining drilling hole, the sealing portion is extruded by the lining drilling hole to form a first seal and a first friction force with the lining drilling hole, water seepage penetrating from surrounding rock forms water pressure in the sealing cavity through the first opening, the water pressure acts on the sealing portion, along with the increase of the water pressure, the pressure between the sealing portion and the lining drilling hole is increased, the sealing performance of the first seal between the sealing portion and the lining drilling hole is improved, the water seepage caused by the increased water pressure is prevented, the pressure between the sealing portion and the lining drilling hole is increased, the first friction force is increased, and the water blocking cavity pipe is prevented from being leaked out of the lining drilling hole in the process of gradually increasing the water pressure. In some embodiments, a deformation is formed between the first seal segment and the second seal segment, the deformation and the lining borehole form a deformation cavity, the deformation cavity has a second opening, and the second opening faces away from the surrounding rock direction; The water blocking cavity pipe and the elastic sealing piece are also matched and arranged in such a way that water seepage permeated from surrounding rock forms water pressure in the sealing cavity through the first opening, the water pressure acts on the deformation part, along with the increase of the water pressure, air is discharged from the second opening, the deformation part gradually moves towards the direction close to the lining drilling hole and is in conflict with the lining drilling hole to form second friction force, along with the increase of the water pressure, the pressure between the deformation part and the lining drilling hole is increased along with the increase of the water pressure, and the second friction force is further increased, so that the water blocking cavity pipe is further prevented from being out of the lining drilling hole in the process of gradually increasing the water pressure. In some embodiments, a deformation is formed between the first seal segment and the second seal segment, the deformation and the lining borehole form a deformation cavity, the deformation cavity has a secon