CN220230790U - Buried device for underwater tunnel environment - Google Patents

Abstract

The application relates to the technical field of seepage pressure measurement, and more particularly relates to an embedded device and an embedded osmometer for an underwater tunnel environment. The utility model provides a bury device can realize the sealing of second seal section and lining drilling after the water shutoff cavity pipe is beaten into lining drilling, the seal with lining drilling also can be realized to first seal section under the circumstances of hydraulic pressure increase, and seal performance, the friction performance of first seal section, second seal section increase along with the increase of hydraulic pressure, has reached the effect of meeting the water auto-lock to a certain extent. The utility model provides a bury underground device, the bigger prevention of seepage performance of water pressure is stronger, has solved tunnel lining's outer loop water pressure monitoring difficult problem, and can screw out the closing cap from the water shutoff cavity pipe when real-time supervision water pressure, and the water shutoff cavity pipe also can act as the pressure release hole and use, has reduced the design in pressure release hole, has avoided too much punching to the adverse effect that tunnel lining produced.

Description

Buried device for underwater tunnel environment

Technical Field

The application relates to the technical field of seepage pressure measurement, and more particularly relates 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 application 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 comprises the steps of drilling holes on the ground at the upper part of a tunnel to the outer side of a tunnel lining, and embedding the osmometer for water pressure measurement; or a mode of firstly drilling holes to place an osmometer and then plugging by using bentonite or concrete is adopted.

Disclosure of Invention

In view of this, the present application provides an embedded device and an embedded osmometer, so as to solve one or more technical problems in the related art, where the present application is implemented as follows:

in a first aspect, embodiments of the present application provide an embedment device, the embedment device 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 shutoff cavity pipe and the elastic sealing piece are matched and arranged as follows: after the water shutoff cavity pipe is arranged in the lining drilling hole, the sealing part is extruded by the lining drilling hole to form a first seal and a first friction force with the lining drilling hole; water seepage from surrounding rock is formed into water pressure in the sealing cavity through the first opening, and the water pressure acts on the sealing part; as the water pressure increases, the pressure between the sealing portion and the lining borehole increases, thereby improving the sealing performance of the first seal between the sealing portion and the lining borehole to prevent the increased water pressure from leaking water from the lining borehole; the pressure between the sealing part and the lining drilling hole is increased along with the sealing part, so that the first friction force is increased, and the water blocking cavity pipe is prevented from being shifted 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 shutoff cavity pipe and the elastic sealing piece are also matched and arranged as follows: water seepage permeated from surrounding rock forms water pressure in the sealing cavity through the first opening, and the water pressure acts on the deformation part; as the water pressure increases, air is discharged from the second opening, and the deformation part moves gradually to a direction close to the lining drilling hole and is in contact with the lining drilling hole to form a second friction force; and along with the increase of the water pressure, the pressure between the deformation part and the lining drilling hole is increased, so that the second friction force is increased, and the water blocking cavity pipe is further prevented from being shifted 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 shutoff cavity pipe and the elastic sealing piece are also matched and arranged as follows: water seepage permeated from surrounding rock forms water pressure in the sealing cavity through the first opening, and the water pressure acts on the deformation part; as the water pressure increases, air is discharged from the second opening, and the deformation part moves gradually to a direction close to the lining drilling hole and contacts with the lining drilling hole to form a second seal; and along with the increase of the water pressure, the pressure between the deformation part and the lining drilling hole is increased, so that the sealing performance of the second seal between the deformation part and the lining drilling hole is improved, and the leakage of water seepage from the lining drilling hole due to the increased water pressure is further prevented.

In some embodiments, the water shutoff cavity pipe further comprises a limiting piece sleeved on the outer pipe wall, wherein the limiting piece is provided with a third opening for accommodating the first sealing section, and the third opening faces the surrounding rock direction; when the first sealing section is arranged in the third opening, the first sealing section is extruded by the third opening to form a third seal, so that seepage of water from the first sealing section and the third opening can be prevented, and pressure release of a sealing cavity and seepage of water from the lining drill hole can be prevented.

In some embodiments, the distance between adjacent stop members is set such that there is a gap with the preceding stop member when the second seal segment to which the following stop member is connected is extended to facilitate placement of the water shutoff cavity tube in the lined borehole.

In some embodiments, the number of the elastic sealing elements is a plurality, and the plurality of the elastic sealing elements are arranged along the axis of the water shutoff cavity pipe and are used for forming a plurality of seals with the lining drilling hole so as to improve the reliability of the seal and the stability of the water shutoff cavity pipe in the lining drilling hole.

In some embodiments, the seal comprises a sealing surface for sealing with the lined borehole, the sealing surface being shaped to conform to the lined borehole;

After the water shutoff cavity pipe is arranged in the lining drilling hole, the sealing surface is attached to the lining drilling hole so as to form the first seal and the first friction force with the lining drilling hole.

In some embodiments, the first seal segment is cylindrical and the second seal segment is flare-shaped;

after the water shutoff cavity pipe is arranged in the lining drilling hole, the second sealing section is extruded and contracted by the lining drilling hole, and the sealing part is extruded by the lining drilling hole to form the first sealing and the first friction force with the lining drilling hole.

In some embodiments, the water blocking cavity pipe is provided with a water seepage access hole, and the water seepage access hole is positioned below the sealing cavity and has a gap with the sealing cavity so as to prevent the water pressure in the sealing cavity from being decompressed before the water blocking cavity pipe is filled with water seepage; the infiltration access hole is used for reducing or preventing debris from entering the inside of the water shutoff cavity pipe, infiltration is through infiltration access hole gets into the inside of the water shutoff cavity pipe is for the osmometer to carry out the water pressure detection.

Embodiments of the present application provide another burying device, including:

the water blocking cavity pipe is used for being placed in the lining drilling hole; the water blocking cavity pipe is connected with a fixing piece, and the fixing piece is connected with the lining operation surface to fix the water blocking cavity pipe;

The osmometer sleeve is fixed in the water shutoff cavity pipe, and the osmometer is arranged in the osmometer sleeve;

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 seal section comprises a seal part used for being in sealing connection with the lining drilling hole, the second seal section is sleeved on the outer pipe wall and extends along the direction away from the first seal section, the elastic seal piece and the outer pipe wall form a seal cavity, the seal cavity is provided with a first opening, and the first opening faces the surrounding rock direction.

In some embodiments, the osmometer sleeve comprises a barrel, a fixed barrel is connected to the bottom end of the barrel, the diameter of the barrel is larger than that of the fixed barrel, the osmometer is installed in the fixed barrel, and the fixed barrel is in contact with the osmometer and provides support for the osmometer.

In some embodiments, the bottom end of the water blocking cavity pipe is provided with a water seepage access hole, the water seepage access hole is used for reducing or preventing sundries from entering the inside of the water blocking cavity pipe, and water seepage enters the inside of the water blocking cavity pipe through the water seepage access hole so as to enable the osmometer to work.

In some embodiments, the stationary barrel is provided with a plurality of weeping apertures to further reduce or prevent debris from entering the interior of the stationary barrel.

In some embodiments, a closure cap is attached to the spout at the top end of the water-blocking cavity tube to block water seepage inside the water-blocking cavity tube, and the closure cap prevents the osmometer sleeve from being extruded from the spout after the osmometer sleeve is placed in the water-blocking cavity tube.

In some embodiments, the water blocking cavity tube is threadably connected to the closure to prevent the water blocking cavity tube from being separated from the closure when the water pressure increases.

In some embodiments, the cover is provided with a wiring hole, and a cable connected with the osmometer extends out of the lining operation surface through the wiring hole.

In some embodiments, the top of the closure is provided with a protrusion shaped to accommodate a wrench to facilitate the wrench screwing or unscrewing of the closure.

In some embodiments, an adhesive tape is arranged on the inner pipe wall of the water shutoff cavity pipe, and the adhesive tape is used for limiting the osmometer sleeve when the osmometer sleeve is inserted into the water shutoff cavity pipe;

the adhesive tape is integrally trapezoidal, and is opened relative to the direction of inserting the osmometer sleeve into the water shutoff cavity pipe, and the upper bottom of the trapezoid is in surface contact with the osmometer sleeve.

In some embodiments, the water shutoff cavity tube is an internal hollow metal tube, and the outer tube wall is provided with a double-layer elastic sealing element;

the pipe orifice of the water shutoff cavity pipe is provided with a metal disc serving as the fixing piece, the metal disc is in threaded connection with the sealing cover, and the expansion bolt is used for fixing the metal disc on the lining, so that the water shutoff cavity pipe is prevented from being rotated when the sealing cover is screwed in or screwed out.

In a second aspect, embodiments of the present application provide an embedded osmometer, including an embedded device according to any one of the first aspect, and an osmometer. The embedded device further comprises an osmometer sleeve, the osmometer sleeve is arranged in the water shutoff cavity pipe, and the osmometer is arranged in the osmometer sleeve.

The beneficial effects that this application some embodiments bring are:

the utility model provides a bury device can realize the sealing of second seal section and lining drilling after the water shutoff cavity pipe is beaten into lining drilling, the seal with lining drilling also can be realized to first seal section under the circumstances of hydraulic pressure increase, and seal performance, the friction performance of first seal section, second seal section increase along with the increase of hydraulic pressure, has reached the effect of meeting the water auto-lock to a certain extent. And, the water pressure acts on the second seal section that forms the sealed chamber, along with the water pressure increases, the pressure between second seal section and the lining drilling increases thereupon, and then improves the seal and the frictional force between second seal section and the lining drilling to prevent that the water shutoff cavity pipe from the lining drilling drunkenness in-process is increased gradually to the water pressure.

The utility model provides a bury underground device, the bigger prevention of seepage performance of water pressure is stronger, has solved tunnel lining's outer loop water pressure monitoring difficult problem, and can screw out the closing cap from the water shutoff cavity pipe when real-time supervision water pressure, and the water shutoff cavity pipe also can act as the pressure release hole and use, has reduced the design in pressure release hole, has avoided too much punching to the adverse effect that tunnel lining produced.

In some embodiments of the present application, a plurality of elastic sealing elements face the upstream face, i.e. the direction of surrounding rock, and the embedded device can be installed stably under the scouring action of large water pressure, and meanwhile, the larger the water pressure is, the stronger the seepage-proofing performance is, and the stronger the water blocking capability is.

In some embodiments of the application, compared with the traditional osmometer burying mode, the plugging device does not need filling and grouting plugging holes, and can be used by only driving the plugging cavity pipe into a lining drilling hole, and is simple and convenient to install.

In some embodiments of the application, compare behind traditional mode buries the osmometer, use bentonite or concrete to block up the drill way, later stage osmometer damages inefficacy inconvenient taking out, forms "bad hole", and the device accessible closing cap is opened many times to the buries of the application, in time replaces the osmometer of damage, and it is convenient to change.

In some embodiments of the application, after the monitored water pressure reaches the early warning value, the sealing cover can be unscrewed to take out the osmometer sleeve and the osmometer, and the osmometer sleeve can be used as a pressure relief hole in a sunroof period of train operation, so that repeated punching on the lining is avoided, and the lining structure is damaged.

It should be understood that the description of this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows. The above, as well as additional objectives, advantages, and features of the present application will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present application when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings, which serve to better understand the present solution and are not to be construed as limiting the present application. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic structural diagram of an embedding device according to some embodiments of the present application.

Fig. 2 is a schematic diagram of the positional relationship between an embedment device and a lining borehole according to some embodiments of the present application.

FIG. 3 is a schematic diagram of the installation relationship of an osmometer sleeve and an osmometer according to some embodiments of the present application.

Fig. 4 is a schematic view of an embedment device mounted in a lined borehole in accordance with some embodiments of the present application.

Fig. 5 is a schematic structural view of an elastic seal according to other embodiments of the present application.

Description of main reference numerals:

110-water shutoff cavity pipe, 111-outer pipe wall, 112-inner pipe wall, 113-adhesive tape, 114-metal disc, 114 a-internal thread, 115-expansion bolt, 116-water seepage access hole and 117-limiting piece.

120-elastic seal, 121-first seal segment, 122-second seal segment, 122 a-seal, 123-seal cavity, 124-deformation cavity.

130-osmometer sleeve, 131-barrel, 132-fixed barrel, 133-cover, 133 a-external thread, 133 b-wiring hole.

20-osmometer, 210-cable.

30-lining; 310-lining the drill hole.

40-surrounding rock.

50-lining and surrounding rock interface.

60-lining the operation surface.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, in which many details of the embodiments of the present application are included to facilitate understanding, and the described embodiments are only possible technical implementations of the present application, and should be considered as merely exemplary, not all implementations possible. Also, for the sake of clarity and conciseness, descriptions of well-known functions and constructions are omitted in the following description.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and that the objects identified by the terms "first", "second", etc. are generally one type and do not limit the number of objects, for example, the first object may be one or more. In this application, "or/and", "and/or" means at least one of the objects, and "or" means one of the objects. The primary purpose of the present application, namely, "upper," "lower," "front," "rear," "vertical," "high," "low," and "like" are to better describe the present application and its embodiments, and are not intended to limit the particular orientation of the apparatus, elements or components indicated, or to configure and operate in a particular orientation. The term "plurality" shall mean two as well as more than two. In the description of the present application, the orientation or positional relationship indicated by the terms "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

Exemplary application scenarios

Before introducing the technical solution of the present application, an exemplary application scenario of the technical solution of the embodiment of the present application is first described.

As mentioned above, the method for embedding the osmometer 20 may be to drill holes in the ground at the upper part of the tunnel to the outside of the lining 30 of the tunnel, and then embed the osmometer 20 for hydraulic pressure measurement; alternatively, the osmometer 20 may be placed in advance of drilling and then plugged with bentonite or concrete. In the two methods, when high water pressure exists in the outer ring of the tunnel, particularly in the underwater tunnel environment, the osmometer 20 is difficult to install, bentonite or concrete cannot completely block water under the action of the high water pressure, fine aggregate in the hole can be flushed out by water to form a water seepage channel, even the water blocking material can be completely flushed out when the water pressure is too high, and the real water pressure behind the lining 30 cannot be monitored.

Exemplary technical solution

In the present application, the water shutoff cavity pipe 110 can be placed in the lining drilling 310, and the osmometer 20 can be placed inside the water shutoff cavity pipe 110, so that the water shutoff cavity pipe 110 and the lining drilling 310 can be fixed on one hand, and the water shutoff cavity pipe 110 and the osmometer 20 can be fixed on the other hand, so that the osmometer 20 can be kept in position in the lining drilling 310.

In this application, the fixation of the water shut-off cavity tube 110 to the lining borehole 310 is achieved by the elastic seal 120: on the one hand, 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, so that the relative fixation of the elastic sealing element 120 and the position of the water shutoff cavity pipe 110 is realized. Further, the water blocking cavity pipe 110 further includes a limiting member 117, the limiting member 117 is sleeved on the outer pipe wall 111, the limiting member 117 has a third opening for accommodating the first sealing section 121, and the third opening faces the direction of the surrounding rock 40, so that the limiting member 117 limits the first sealing section 121 and prevents the elastic sealing member 120 from extruding out of the lining drilling 310. When the first seal segment 121 is placed in the third opening, the first seal segment 121 is compressed by the third opening to form a third seal to prevent seepage of water, particularly high pressure water, from the first seal segment 121 and the third opening resulting in decompression of the seal cavity 123 and seepage of water from the lined borehole 310. On the other hand, the sealing portion 122a of the second sealing segment 122 is pressed by the lining borehole 310 to form a first seal with the lining borehole 310 and a first friction force, so that the relative fixation of the positions of the elastic sealing member 120 and the lining borehole 310 is realized.

Fixation of the water shut-off lumen 110 to the osmometer 20: in one aspect, in the embodiments shown in fig. 1, 2 and 4, the inner pipe wall 112 of the water blocking cavity pipe 110 is provided with a rubber strip 113, and the rubber strip 113 is used for limiting the osmometer sleeve 130 when the osmometer sleeve 130 is placed in the water blocking cavity pipe 110. The adhesive tape 113 is an elastic piece, when the osmometer sleeve 130 is extruded into the water plugging cavity tube 110, the adhesive tape 113 is elastically deformed, the plurality of adhesive tapes 113 are arranged on the inner wall of the water plugging cavity tube 110, so that the positions of the osmometer sleeve 130 and the water plugging cavity tube 110 can not move, and when enough tension is applied to overcome the friction force of the adhesive tape 113, the osmometer sleeve 130 can be taken out from the water plugging cavity tube 110. In the illustrated embodiment, the adhesive strip 113 is generally trapezoidal in shape and is open relative to the direction of insertion of the osmometer sleeve 130 to facilitate insertion of the osmometer sleeve 130 into the adhesive strip 113. The upper bottom of the trapezoid is in surface contact with the osmometer sleeve 130, and compared with a line contact mode when the adhesive tape 113 is a triangle, the osmometer sleeve 130 can be firmly limited. On the other hand, when the osmometer casing 130 is internally fitted with the osmometer 20, the osmometer 20 is not extruded out of the lined borehole 310 when the osmometer casing 130 is not extruded out of the lined borehole 310. In a preferred embodiment, a cap 133 is attached to the mouth of the water-blocking cavity tube 110 remote from the surrounding rock 40, thereby blocking water seepage inside the water-blocking cavity tube 110, and the cap 133 prevents the osmometer sleeve 130 from being squeezed out of the mouth after the osmometer sleeve 130 is placed in the water-blocking cavity tube 110.

According to a first aspect of the present application, there is provided an embedding apparatus as shown in fig. 1, the embedding apparatus comprising:

a water shut-off cavity tube 110 for placement in a lined borehole 310, the interior of the water shut-off cavity tube 110 being for placement of an osmometer 20.

The elastic sealing member 120 includes:

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.

The second sealing section 122 comprises a sealing part 122a for being in sealing connection with the lining drilling 310, the second sealing section 122 is sleeved on the outer pipe wall 111 and extends in a direction away from the first sealing section 121, the elastic sealing element 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 surrounding rock 40.

Referring to fig. 2, the water blocking cavity pipe 110 and the elastic sealing member 120 are cooperatively disposed as follows: after the water shut off cavity tube 110 is placed in the lined bore 310, the seal 122a is compressed by the lined bore 310 to form a first seal with the lined bore 310 and a first friction force. The water permeated from the surrounding rock 40 forms a water pressure in the sealing chamber 123 through the first opening, and the water pressure acts on the sealing portion 122a. As the water pressure increases, the pressure between the sealing portion 122a and the lining borehole 310 increases, thereby improving the sealing performance of the first seal between the sealing portion 122a and the lining borehole 310 to prevent the increased water pressure from leaking water from the lining borehole 310. The pressure between the sealing portion 122a and the lining borehole 310 increases accordingly, thereby increasing the first friction force to prevent the water blocking cavity pipe 110 from escaping from the lining borehole 310 during the gradual increase of the water pressure.

First friction force f=μ×n, where F is friction force, μ is friction coefficient, and N is positive pressure acting on the seal portion 122 a. It can be seen that, as the water seeps into the seal cavity 123, the water pressure increases, and the first friction force F increases, so that the effect of relatively fixing the positions of the elastic sealing element 120 and the lining drilling holes 310 is achieved in the working condition environment where the water pressure gradually increases, and the situation that the water seeps to the road surface through the lining drilling holes 310 to cause the road surface to wet and slide is prevented.

In some embodiments, a deformation is formed between the first seal segment 121 and the second seal segment 122, the deformation and the lining borehole 310 form a deformation cavity 124, and the deformation cavity 124 has a second opening, and the second opening faces away from the surrounding rock 40.

The water shutoff cavity tube 110 and the elastic sealing member 120 are also cooperatively arranged to: the water permeated from the surrounding rock 40 forms a water pressure in the sealing chamber 123 through the first opening, and the water pressure acts on the deformation portion. As the water pressure increases, air is discharged from the second opening and the deformation portion gradually moves toward the lining borehole 310 and contacts the lining borehole 310 to form a second friction force. And as the water pressure increases, the pressure between the deformation portion and the lining borehole 310 increases, thereby increasing the second friction force to further prevent the water shutoff cavity tube 110 from escaping from the lining borehole 310 during the gradual increase of the water pressure.

In this application, the second frictional force forms behind first frictional force, and first frictional force and second frictional force all increase along with the increase of water pressure, and the second frictional force can provide the complementation to first frictional force, forms the resistance between elastic seal 120 and the lining drilling 310 jointly, plays elastic seal 120 and the relatively fixed effect of lining drilling 310 position.

The water shutoff cavity tube 110 and the elastic sealing member 120 are also cooperatively arranged to: the water permeated from the surrounding rock 40 forms a water pressure in the sealing chamber 123 through the first opening, and the water pressure acts on the deformation portion. As the water pressure increases, air is expelled from the second opening and the deformation gradually moves in a direction toward the lining borehole 310 and contacts the lining borehole 310 to form a second seal. And as the water pressure increases, the pressure between the deformation portion and the lining borehole 310 increases, thereby improving the sealing performance of the second seal between the deformation portion and the lining borehole 310 to further prevent the increased water pressure from leaking water from the lining borehole 310.

In this application, the second seal forms after first seal, and the sealing performance of first seal and second seal all increases along with the increase of water pressure, and the second seal can provide the complementation to first seal, forms the seal between elastic seal 120 and the lining drilling 310 jointly, plays the effect of lining drilling 310 infiltration prevention.

As an illustrative example, both the second friction force and the second seal described above may be achieved by the inherent elasticity of the elastomeric seal 120, either alone or in combination. Fig. 1, 2 and 4 show an alternative embodiment of the elastomeric seal 120 of the present application, the deformation, the second friction and the second seal being provided substantially by a second seal segment 122, said second seal segment 122 forming a seal cavity 123 with said outer tube wall 111, the deformation cavity 124 being formed by a first seal segment 121, a second seal segment 122. The first sealing section 121 is cylindrical, and the second sealing section 122 is bell-mouth shaped; after the water shut-off cavity tube 110 is placed in the lined bore 310, the second seal segment 122 is compressed by the lined bore 310, and the seal 122a is compressed by the lined bore 310 to form the first seal with the lined bore 310 and the first friction.

Fig. 5 shows another alternative embodiment of the elastomeric seal 120 of the present application, the deformation, the second friction and the second seal being provided substantially by a first seal segment 121, said first seal segment 121 forming a seal cavity 123 with said outer tube wall 111 and a deformation cavity 124 being formed by the first seal segment 121 and the lining borehole 310. The difference from fig. 1, 2 and 4 is that the whole of the first sealing section 121 is cylindrical, the whole of the second sealing section 122 is cylindrical or O-shaped with larger wall thickness, the first sealing section 121 is connected to the middle part of the cylindrical or O-shaped second sealing section 122, the outer side of the second sealing section 122 is in contact with the lining drilling 310 so that the first sealing section 121 and the lining drilling 310 form a deformation cavity 124, and the first sealing section 121 and the outer pipe wall 111 of the water shutoff cavity pipe 110 form a sealing cavity 123. Because the thickness of the first sealing section 121 is smaller than that of the second sealing section 122, the first sealing section 121 is a weak point of the elastic sealing member 120, so that the second seal and the second friction force are easier to form with the lining drilling hole 310 under the action of water pressure, and as the water pressure increases, the bonding area of the first sealing section 121 and the lining drilling hole 310 increases, and the second seal and the second friction force increase with the increase of the water pressure. The inner side of the second sealing section 122 is in contact with the outer tube wall 111 of the water blocking cavity tube 110, and a plurality of through holes may be provided in the inner side of the second sealing section 122 for contact with the osmometer sleeve 130 to facilitate the passage of water infiltrated from the surrounding rock 40 into the sealing cavity 123.

The number of the elastic sealing elements 120 shown in fig. 1, 2 and 4 is two, a certain number of elastic sealing elements 120 can be added according to the requirement, and a plurality of elastic sealing elements 120 are arranged along the axis of the water shutoff cavity pipe 110 and are used for forming a plurality of seals with the lining drilling holes 310, so that the contact area with the lining drilling holes 310 is increased, the sealing reliability can be improved, and the stability of the water shutoff cavity pipe 110 in the lining drilling holes 310 can be improved. In addition, the plurality of elastic sealing elements 120 form a plurality of seals and friction between the elastic sealing elements 120 and the lining drilling holes 310, so that the effect of relatively fixing the positions of the elastic sealing elements 120 and the lining drilling holes 310 and the effect of preventing water seepage of the lining drilling holes 310 are further achieved.

In use, the elastic sealing member 120 may be pressed and contracted toward the water blocking hollow tube 110 in advance, so as to facilitate placing the water blocking hollow tube 110 in the lining drill hole 310, and thus the distance between the adjacent limiting members 117 is set such that when the second sealing section 122 connected to the latter limiting member 117 is extended, a gap is formed between the second sealing section and the former limiting member 117, so as to facilitate placing the water blocking hollow tube 110 in the lining drill hole 310.

In fig. 2 and 4, the sealing portion 122a includes a sealing surface for sealing with the lining borehole 310, and the shape of the sealing surface is adapted to the lining borehole 310. For example, if the bore diameter of the lining borehole 310 is small, the arc of the sealing surface is large; if the bore diameter of the lining borehole 310 is large, the arc of the sealing surface is small. Such that after the water shut off cavity tube 110 is placed in the lined borehole 310, the sealing surface conforms to the lined borehole 310 to form the first seal with the lined borehole 310 and the first friction force.

As shown in fig. 1, 2 and 4, the water blocking cavity pipe 110 is provided with a water seepage access hole 116, and the water seepage access hole 116 is positioned below the sealing cavity 123 and has a gap with the sealing cavity 123 so as to prevent the 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 shutoff cavity pipe 110, and water seepage enters the inside of the water shutoff cavity pipe 110 through the water seepage access hole 116 so as to enable the osmometer 20 to perform water pressure detection.

According to a first aspect of the present application, there is also provided another burying device based on the same concept, the burying device comprising:

A water-blocking cavity tube 110 for placement in a lined borehole 310; the water blocking cavity pipe 110 is connected with a fixing member, and the fixing member is connected with the lining operation surface 60 to fix the water blocking cavity pipe 110.

An osmometer sleeve 130 is fixed in the water blocking cavity pipe 110, and the osmometer sleeve 130 is used for installing an osmometer 20.

The elastic sealing member 120 includes:

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;

the second sealing section 122 comprises a sealing part 122a for being in sealing connection with the lining drilling 310, the second sealing section 122 is sleeved on the outer pipe wall 111 and extends in a direction away from the first sealing section 121, the elastic sealing element 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 surrounding rock 40.

In this embodiment, the water blocking cavity pipe 110 is connected to a fixing member, and the fixing member is connected to the lining operation surface 60 to fix the water blocking cavity pipe 110. In fig. 1, 2 and 4, the fixing member is a metal disc 114, and in other embodiments, the fixing member may be made of other sturdy materials, for example, when the expansion bolts 115 are made of resin, the fixing member may be made of resin. In other embodiments, the securing member may have other shapes. The surface of the metal disc 114 is adapted to the shape of the lining work surface 60, and the metal disc 114 is fixed to the lining work surface 60 by means of fasteners such as expansion bolts 115. The metal disc 114 and the water shutoff cavity tube 110 can be integrally formed or can be designed separately. The mouth of the water blocking cavity pipe 110 far from the surrounding rock 40 is connected with the sealing cover 133 through threads when integrally formed, so as to prevent the water blocking cavity pipe 110 from being separated from the sealing cover 133 when the water pressure increases. In the split design, the middle part of the metal disc 114 extends downwards to form a through hole part with double-side threads, the external thread of the through hole part is in threaded connection with the pipe orifice of the water shutoff cavity pipe 110 far away from the surrounding rock 40, the internal thread 114a of the through hole part is connected with the external thread 133a arranged on the sealing cover 133, and after the osmometer sleeve 130 is arranged in the water shutoff cavity pipe 110, the sealing cover 133 prevents the osmometer sleeve 130 from being extruded from the pipe orifice. The burying device of the present embodiment can be used after the osmometer 20 is mounted in the osmometer sleeve 130. The sealing cover 133 is provided with a wiring hole 133b, the cable 210 connected with the osmometer 20 extends to the outside of the lining operation surface 60 through the wiring hole 133b, and a sealing gasket can be installed to seal the cable 210 and the wiring hole 133b to prevent water seepage from flowing out through the wiring hole 133 b; the gap between the cable 210 and the wiring hole 133b may be filled with water stop glue to prevent water seepage at the wiring hole 133 b. The cover 133 is provided with protrusions shaped to accommodate a wrench to facilitate the wrench screwing in or unscrewing the cover 133, e.g. the circumference of the protrusions is hexagonal.

As an exemplary embodiment of the structure of the osmometer casing 130, as shown in fig. 3 and 4, the osmometer casing 130 includes a cylinder 131, and a fixed cylinder 132 is connected to the cylinder 131, where the fixed cylinder 132 is used to collide with the osmometer 20 and provide support for the osmometer 20. The diameter of the cylinder 131 is larger than that of the fixing cylinder 132, so that the cylinder 131 is conveniently fixed by the water shutoff cavity pipe 110, and the osmometer 20 is conveniently installed or taken out of the osmometer sleeve 130. In fig. 3 and 4, the water blocking cavity pipe 110 is provided with a water seepage access hole 116, and the water seepage access hole 116 can reduce or prevent sundries such as sand and stone with larger diameter from entering the water blocking cavity pipe 110, so as to reduce damage caused by collision of the osmometer 20. Water seepage enters the interior of the water shutoff cavity tube 110 through the water seepage access hole 116 for the osmometer 20 to work. The fixed cylinder 132 is provided with a plurality of water seepage holes for the osmometer 20 to work on the one hand and for further reducing or preventing impurities such as sand and stones with larger diameters from entering the inside of the fixed cylinder 132 on the other hand.

An adhesive tape 113 is arranged on the inner pipe wall 112 of the water shutoff cavity pipe 110, and the adhesive tape 113 is used for limiting the osmometer sleeve 130 when the osmometer sleeve 130 is inserted into the water shutoff cavity pipe 110. In fig. 1, 2 and 4, the adhesive tape 113 has a trapezoid shape as a whole, and is opened with respect to the direction in which the osmometer sleeve 130 is inserted into the water shutoff hollow pipe 110, and the upper bottom of the trapezoid is in surface contact with the osmometer sleeve 130.

It should be noted that, under the condition of no conflict, the features of the first aspect may be combined with each other to form the burying device in the corresponding technical scheme. The present application schematically gives examples of combinations to illustrate possible combinations:

the device for embedding the osmometer 20 in the underwater tunnel comprises a water shutoff cavity tube 110, wherein the water shutoff cavity tube 110 is a circular metal tube with a hollow inside, an opening-shaped double-layer elastic sealing piece 120 is arranged on the outer tube wall 111 of the water shutoff cavity tube 110, and the elastic sealing piece 120 can deform under the action of water pressure. The water blocking cavity pipe 110 is driven into the lining drilling hole 310 with the diameter slightly smaller than the opening diameter of the second sealing section 122, the elastic sealing element 120 can block water seepage outside the water blocking cavity pipe 110 flowing in from the surrounding rock 40 direction, when the water pressure is too high, the middle part of the elastic sealing element 120 and the outer pipe wall 111 is propped open by the water pressure, and the elastic sealing element 120 is tightly attached to the lining drilling hole, so that the effect of self-locking when meeting water is achieved. The smaller the diameter of the masonry hole is, the better the water stopping effect is in the beginning, the smaller the maximum diameter of the elastic sealing member 120 outside the water shutoff cavity pipe 110 is. In addition, a metal disc 114 is further arranged at the pipe orifice of the water shutoff cavity pipe 110, and the expansion bolts 115 are used for fixing the metal disc 114 on the inner surface of the lining 30, namely the lining operation surface 60, so that the water shutoff cavity pipe 110 is prevented from rotating when the sealing cover 133 is screwed in or screwed out, and the sealing failure between the elastic sealing element 120 and the lining drilling hole 310 is avoided. The metal disc 114 is in threaded connection with the sealing cover 133, or threads can be arranged on the side, close to the metal disc 114, of the water shutoff cavity tube 110 for being connected with external threads 133a arranged on the sealing cover 133.

The outer diameter of the osmometer sleeve 130 is smaller than the inner diameter of the water plugging cavity pipe 110, the osmometer sleeve 130 extends into the water plugging cavity pipe 110, and the osmometer 20 is arranged on the interface 50 between the lining and the surrounding rock, so that the water pressure data monitored by the osmometer 20 are more accurate. The end of the osmometer sleeve 130 is provided with a fixed cylinder 132 of the osmometer 20, a plurality of water seepage holes are formed in the fixed cylinder 132 to isolate sand from stone, and water seepage enters the fixed cylinder 132 to enable the osmometer 20 to monitor water pressure data in real time without being damaged by the sand.

As shown in fig. 4, the bottom end of the sealing cap 133 is provided with an external thread 133a, and the inner side of the top end of the water blocking cavity tube 110 made of metal material can be provided with an internal thread, so that the sealing cap 133 is in threaded connection with the water blocking cavity tube 110, and water seepage inside the water blocking cavity tube 110 is blocked. The cable 210 is pulled out from the wiring hole 133b in the middle of the cover 133, and the top end of the cover 133 protrudes in a hexagonal nut shape, so that the cover 133 can be screwed in and out conveniently.

Wherein, the water shutoff cavity tube 110 is connected with the elastic sealing element 120, which specifically may include: roughening the surface of the water shut-off cavity tube 110, for example, of a metal material using a polishing tool increases the surface roughness, which increases the contact area between the water shut-off cavity tube 110 and the elastic seal 120. After the polishing process, the water shutoff cavity tube 110 may be brushed with a cleaning agent to remove dust, so as to prevent the adhesion effect during the subsequent glue brushing process from being affected. The cold vulcanized glue is used for glue brushing treatment, for example, the surface of the water blocking cavity pipe 110 can be brushed twice, the position where the limiting piece 117 is located is brushed once, then the first sealing section 121 is inserted into the limiting piece 117 to be attached, a compacting tool is needed after attachment, the first sealing section 121 is completely compacted on the surface of the water blocking cavity pipe 110 where the limiting piece 117 is located, a rubber repairing agent can be used for sealing treatment at the joint part of the first sealing section 121 and the limiting piece 117, the joint part is prevented from being scratched and cracked, and seepage is further prevented from being caused at the attachment position of the first sealing section 121 and the limiting piece 117.

An exemplary method of use:

drilling: the drilling equipment is used for drilling the water seepage part of the lining 30 in the tunnel to the interface 50 between the lining and the surrounding rock, the diameter of the lining drilling 310 is smaller than the diameter of the opening of the second sealing section 122, for example, about 5mm, and the diameter of the lining drilling 310 needs to be set smaller when the water pressure is higher.

Fixing the water shutoff cavity tube 110: the sediment in the lining borehole 310 is cleaned, for example, the elastic sealing element 120 of the hole wall or the water shutoff cavity pipe 110 is lubricated by oiling, so as to prevent the elastic sealing element 120 from being damaged to influence the sealing; the water shut-off cavity tube 110 is then driven into the lining borehole 310, and the water shut-off cavity tube 110 is secured to the lining 30 using, for example, expansion bolts 115.

The cable 210 of the osmometer 20 is pulled out: the osmometer 20 is placed into the fixed barrel 132 and the cable 210 is pulled out of the osmometer sleeve 130 and then through the trace hole 133b reserved in the cover 133. The gap between the cable 210 and the routing hole 133b may be filled with water stop glue to prevent water seepage at the routing hole 133b.

Put into osmometer sleeve 130: after the water stop glue is solidified, the osmometer sleeve 130 is placed into the water blocking cavity pipe 110, and then the sealing cover 133 is screwed into the pipe orifice of the water blocking cavity pipe 110 to block water seepage, so that the osmometer 20 can monitor the outer ring water pressure of the lining 30 during operation.

Cover 133: when the monitored water pressure data is too large, the sealing cover 133 can be screwed out, the osmometer 20 and the osmometer sleeve 130 are taken out, water seepage flows out from the inside of the water shutoff cavity pipe 110, the pressure relief effect is achieved, the osmometer 20 and the osmometer sleeve 130 are placed into the water shutoff cavity pipe 110 after the pressure relief is finished, the sealing cover 133 is screwed in, and the outer ring water pressure of the lining 30 is continuously monitored.

The application has at least the following effects:

of the present applicationEmbedding deviceThe second sealing section 122 and the lining drilling 310 can be sealed after the water blocking cavity pipe 110 is driven into the lining drilling 310, the first sealing section 121 can also be sealed with the lining drilling 310 under the condition of increasing water pressure, and the sealing performance and the friction performance of the first sealing section 121 and the second sealing section 122 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. And, the water pressure acts on the second sealing section 122 forming the sealing cavity 123, and as the water pressure increases, the pressure between the second sealing section 122 and the lining drilling 310 increases, so as to further improve the sealing and friction between the second sealing section 122 and the lining drilling 310, so as to prevent the water shutoff cavity tube 110 from escaping from the lining drilling 310 in the process of gradually increasing the water pressure.

The utility model discloses a bury device, the bigger prevention of seepage performance of water pressure is stronger, has solved tunnel lining 30's outer loop water pressure monitoring difficult problem, and can screw out closing cap 133 from water shutoff cavity pipe 110 when real-time supervision water pressure, and water shutoff cavity pipe 110 also can act as the pressure release hole and use, has reduced the design in pressure release hole, has avoided too much punching to the adverse effect that tunnel lining 30 produced.

In some embodiments of the present application, the plurality of elastic sealing elements 120 face the upstream surface, i.e. the direction of the surrounding rock 40, and are self-locking when encountering water, the embedded device can be installed stably under the scouring action of large water pressure, and meanwhile, the larger the water pressure is, the stronger the seepage-proofing performance is, and the stronger the water blocking capability is.

In some embodiments of the present application, compared to conventional osmometer buries, the method does not need to fill and grouting to plug holes, and can be used by driving the water plugging cavity pipe 110 into a lining borehole, and is simple and convenient to install.

In some embodiments of the application, compare behind traditional mode buries the osmometer, use bentonite or concrete to block up the drill way, later stage osmometer damages inefficacy inconvenient taking out, forms "bad hole", and the device accessible closing cap is opened many times to the buries of the application, in time replaces the osmometer of damage, and it is convenient to change.

In some embodiments of the present application, after the monitored water pressure reaches the pre-warning value, the cover 133 can be unscrewed to take out the osmometer sleeve 130 and the osmometer 20, and the osmometer sleeve and the osmometer 20 can be used as a pressure relief hole during a sunroof period of train operation, so as to avoid punching holes on the lining 30 for multiple times and damaging the structure of the lining 30.

According to a second aspect of the present application, there is provided an embedded osmometer comprising an embedded device according to any one of the first aspects, and an osmometer 20. Wherein, the burying device further comprises an osmometer sleeve 130, the osmometer sleeve 130 is arranged in the water shutoff cavity pipe 110, and the osmometer 20 is arranged in the osmometer sleeve 130. The embedded osmometer has the technical effects of the embedded device according to any one of the first aspect, and will not be described herein.

Thus, embodiments of the present application have been described in detail with reference to the accompanying drawings. It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail.

The above description is only a partial example of the present application and the description of the technical principles applied, and is not intended to limit the present application in any way. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the disclosure. Such as the above-mentioned features and technical solutions disclosed in the present application but not limited to the features having similar functions are replaced with each other, and are also within the protection scope of the present application.

Claims (10)

1. An embedment device, comprising:

a water-blocking cavity pipe (110) for placement in a lined borehole (310); the water shutoff cavity pipe (110) is connected with a fixing piece, and the fixing piece is connected with the lining operation surface (60) to fix the water shutoff cavity pipe (110);

an osmometer sleeve (130) fixed in the water shutoff cavity pipe (110), wherein an osmometer (20) is arranged in the osmometer sleeve (130);

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);

an adhesive tape (113) is arranged on an inner pipe wall (112) of the water shutoff cavity pipe (110), and the adhesive tape (113) is used for limiting the osmometer sleeve (130) when the osmometer sleeve (130) is inserted into the water shutoff cavity pipe (110).

2. The burying device according to claim 1, wherein,

the osmometer sleeve (130) comprises a cylinder body (131), a fixed cylinder (132) is connected to the bottom end of the cylinder body (131), the diameter of the cylinder body (131) is larger than that of the fixed cylinder (132), the osmometer (20) is installed in the fixed cylinder (132), and the fixed cylinder (132) is in contact with the osmometer (20) and provides support for the osmometer (20).

3. The burying device according to claim 1 or 2, wherein,

the water shutoff cavity pipe (110) bottom is provided with infiltration access hole (116), infiltration access hole (116) are used for reducing or preventing debris entering inside water shutoff cavity pipe (110), infiltration warp infiltration access hole (116) get into inside water shutoff cavity pipe (110) is in order to supply osmometer (20) work.

4. The burying device according to claim 2, wherein,

the fixed cylinder (132) is provided with a plurality of water seepage holes so as to further reduce or prevent sundries from entering the inside of the fixed cylinder (132).

5. The burying device according to claim 1, wherein,

the pipe orifice at the top end of the water shutoff cavity pipe (110) is connected with a sealing cover (133) so as to block water seepage inside the water shutoff cavity pipe (110), and after the osmometer sleeve (130) is arranged in the water shutoff cavity pipe (110), the sealing cover (133) prevents the osmometer sleeve (130) from being extruded from the pipe orifice.

6. The burying device according to claim 5, wherein,

the water blocking cavity pipe (110) is connected with the sealing cover (133) through threads so as to prevent the water blocking cavity pipe (110) from being separated from the sealing cover (133) when the water pressure is increased.

7. The burying device according to claim 6, wherein,

the sealing cover (133) is provided with a wiring hole (133 b), and a cable (210) connected with the osmometer (20) extends out of the lining operation surface (60) through the wiring hole (133 b).

8. The burying device according to claim 7, wherein,

the top of the sealing cover (133) is provided with a bulge, and the bulge is matched with a spanner in shape, so that the spanner can conveniently screw in or screw out the sealing cover (133).

9. The burying device according to claim 1, wherein,

the adhesive tape (113) is of a trapezoid shape as a whole, and is opened relative to the direction of inserting the osmometer sleeve (130) into the water shutoff cavity pipe (110), and the upper bottom of the trapezoid is in surface contact with the osmometer sleeve (130).

10. The burying device according to claim 8, wherein,

the water shutoff cavity pipe (110) is an internal hollow metal pipe, and the outer pipe wall (111) is provided with a double-layer elastic sealing piece (120);

The mouth of pipe of the water shutoff cavity pipe (110) is provided with a metal disc (114) and is used as the mounting, the metal disc (114) with closing cap (133) threaded connection, expansion bolts (115) are with metal disc (114) are fixed in lining (30), so as to avoid screwing in or unscrewing closing cap (133) when rotating water shutoff cavity pipe (110).