CN211735332U

CN211735332U - Repairable piezometric tube

Info

Publication number: CN211735332U
Application number: CN201922372450.4U
Authority: CN
Inventors: 欧斌; 龚爱民; 卢敏; 岳明昊; 尹琴; 潘苏锋; 傅蜀燕; 黄海燕; 朱露露; 严刘伟; 高胜松
Original assignee: Yunnan Agricultural University
Current assignee: Yunnan Agricultural University
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-23
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to a repairable piezometer tube, which belongs to the technical field of hydraulic engineering monitoring and comprises an external tube barrel, an internal tube barrel and geotextile, wherein the external tube barrel comprises a tube body section, a support ring and a water inlet section; and the wall of the inner pipe barrel is uniformly provided with water seepage holes II, and the inner wall of the inner pipe barrel is provided with a layer of geotextile. The utility model discloses ingenious pressure-measuring pipe with original unit mount has divided into outside bobbin and inside bobbin two parts, on the basis that does not influence pressure-measuring pipe working property, when inside bobbin geotechnique cloth takes place the damage and becomes silted up when stifled, only need lead to and hang out inside bobbin, washs and changes geotechnological cloth, puts inside bobbin to outside bobbin in again, just can resume again and observe the function. Has the advantages of low cost, simple equipment, simple and convenient operation, repeatable repair and the like.

Description

Repairable piezometric tube

Technical Field

The utility model belongs to the technical field of hydraulic engineering monitoring, specifically speaking relates to a repairable piezometric tube.

Background

The pressure-measuring pipe is the important equipment of hydraulic structure seepage flow safety nature is built in control feedback, and current pressure-measuring pipe is intake section outside parcel geotechnological cloth in order playing the effect of straining soil drainage, but the pressure-measuring pipe receives outer environment erosion effect parcel can take place ageing damage at outer geotechnological cloth in long-term use, leads to the unable soil particle of blockking of monitoring instrument inlet opening, and then takes place to become silted up and block up and lose the monitoring efficiency. Although the function of the monitoring equipment can be temporarily recovered by cleaning the sludge blocked on the pipe wall, the geotechnical cloth on the outer side is damaged and buried in the soil layer, so that the geotechnical cloth is difficult to repair, soil particles can permeate from the water inlet hole again in a short period of time to block the piezometer pipe again, so that the monitoring equipment fails again, the traditional method cannot fundamentally recover the use function of the tubular monitoring instrument, and the pore-forming rework mode has high cost.

Disclosure of Invention

In order to overcome the problem that exists among the background art, the utility model aims at providing a low cost, equipment are simple, easy and simple to handle, wash and restore convenient piezometric tube.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

a repairable piezometric tube comprises an external tube barrel, an internal tube barrel and geotextile 14, wherein the external tube barrel comprises a tube body section 1, a support ring 2 and a water inlet section 3, the tube body section 1 is connected with the water inlet section 3, the inner wall of the joint of the tube body section 1 and the water inlet section 3 is provided with the support ring 2 for supporting the internal tube barrel, the wall of the water inlet section 3 is provided with a water seepage hole I4, the bottom of the water inlet section 3 is uniformly provided with four guide grooves 15 along the circumferential direction, and gaps are formed between the four guide grooves 15 and the vertical inner wall of the water inlet section 3 and are guide grooves for placing the internal tube barrel; and the wall of the inner pipe barrel is uniformly provided with water seepage holes II 11, and the inner wall of the inner pipe barrel is provided with a layer of geotextile 14.

Further, the inner pipe barrel comprises a detachable barrel body I9 and a detachable barrel body II 13, the bottom end of the detachable barrel body I9 is fixedly connected with the top end of the detachable barrel body II 13 through a connecting bayonet 10, the middle part of the wall of the detachable barrel body II 13 is of a hollow structure, a connecting spring 12 is arranged in the hollow structure, the upper end of the connecting spring 12 is fixed at the bottom of the detachable barrel body I9, and the lower end of the connecting spring 12 is fixed on the bottom wall of the detachable barrel body II 13; the wall of the detachable cylinder body I9 and the wall of the detachable cylinder body II 13 are uniformly provided with water seepage holes II 11, and the inner walls of the detachable cylinder body I9 and the detachable cylinder body II 13 are respectively provided with a layer of geotextile 14.

Furthermore, the upper end of dismantled and assembled stack shell I9 be provided with the sealed support ring 7 that matches with support ring 2, the lower part of sealed support ring 7 is provided with sealed rubber ring 8, the top of sealed support ring 7 is provided with

rings

6, 5 fixed connection of steel wire are on rings 6.

The utility model has the advantages that:

the utility model provides a pair of repairable pressure-measuring pipe, ingenious pressure-measuring pipe with original integral erection has divided into outside bobbin and inside bobbin two parts, on the basis that does not influence pressure-measuring pipe working property, when inside bobbin geotechnique cloth takes place the damage and becomes silted up stifled, only needs inside bobbin to hang out, washs and changes the geotechnological cloth that bobbin inner wall laid, puts inside bobbin to outside bobbin in again, just can resume again and observe the function. Has the advantages of low cost, simple equipment, simple and convenient operation, repeatable repair and the like.

Drawings

FIG. 1 is a schematic view of the external tube of the present invention;

fig. 2 is a schematic view of the internal tube structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the embodiments of the present invention and the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, a repairable piezometric tube comprises an external tube barrel, an internal tube barrel and geotextile 14, wherein the external tube barrel comprises a tube body section 1, a support ring 2 and a water inlet section 3, the tube body section 1 is connected with the water inlet section 3, the inner wall of the joint of the tube body section 1 and the water inlet section 3 is provided with the support ring 2 for supporting the internal tube barrel, the wall of the water inlet section 3 is provided with water seepage holes i 4, the bottom of the water inlet section 3 is uniformly provided with four guide grooves 15 along the circumferential direction, and a gap is formed between the four guide grooves 15 and the vertical inner wall of the water inlet section 3 and is used for placing the internal tube barrel; and the wall of the inner pipe barrel is uniformly provided with water seepage holes II 11, and the inner wall of the inner pipe barrel is provided with a layer of geotextile 14. Water flow permeates through the water seepage holes I4 and the water seepage holes II 11, and then enters the inner cavity of the inner pipe barrel after being filtered by the geotextile 14, so that the water pressure can be measured; the geotextile 14 can be replaced by simply taking out the inner tube.

By arranging the four guide grooves 15 and forming the guide grooves between the inner walls of the water inlet section 3, when an internal pipe barrel consisting of the detachable barrel body II 13 and the detachable barrel body I9 is placed, the guide grooves have a guide effect on the internal pipe barrel; after the inside bobbin placed, the guide way had fixed effect again to the inside bobbin, prevented that inside bobbin from rocking by a wide margin in section 3 intakes.

The inner pipe barrel comprises a detachable barrel body I9 and a detachable barrel body II 13, the bottom end of the detachable barrel body I9 is fixedly connected with the top end of the detachable barrel body II 13 through a connecting bayonet 10, the middle part of the wall of the detachable barrel body II 13 is of a hollow structure, a connecting spring 12 is arranged in the hollow structure, the upper end of the connecting spring 12 is fixed at the bottom of the detachable barrel body I9, and the lower end of the connecting spring 12 is fixed on the bottom wall of the detachable barrel body II 13; the wall of the detachable cylinder body I9 and the wall of the detachable cylinder body II 13 are uniformly provided with water seepage holes II 11, and the inner walls of the detachable cylinder body I9 and the detachable cylinder body II 13 are respectively provided with a layer of geotextile 14. When the geotechnical cloth 14 paved on the inner walls of the detachable barrel body I9 and the detachable barrel body II 13 is damaged along with the increase of the service life, and the pressure measuring pipe is clogged and fails, the detachable barrel body I9 is lifted out, the connecting spring 12 is lifted, the detachable barrel body II 13 is lifted out, cleaning is carried out after disassembly, the geotechnical cloth 14 paved on the inner wall is replaced, and the detachable barrel body II 13 and the detachable barrel body I9 are placed back into the external pipe barrel, so that the function of the pressure measuring pipe is restored; effectively preventing the inner tube from being cleaned when the geotextile is damaged and silted up. Simultaneously, set up the inside bobbin into two sections structures including dismantled and assembled stack shell I9 and dismantled and assembled stack shell II 13, adopt bayonet socket and connecting spring 12 concatenation equipment, the length of inside bobbin is unanimous with the length of the section of intaking 3, and when 3 degree of depth of the section of intaking longer, this kind of structure can reach and alleviate and lift by crane weight, makes things convenient for the effect that geotechnological cloth 14 was laid to the inner wall.

The utility model discloses in, as preferred, dismantled and assembled stack shell I9's upper end be provided with the sealed support ring 7 that matches with support ring 2, the lower part of sealed support ring 7 is provided with sealed rubber ring 8, the top of sealed support ring 7 is provided with

rings

6, 5 fixed connection of steel wire are on rings 6. When the geotextile 14 needs to be replaced, the whole internal pipe barrel is lifted out of the external pipe barrel only through the stainless steel wire 5, so that the geotextile 14 can be replaced, the working performance of the pressure measuring pipe is not influenced, the geotextile 14 laid in the internal pipe barrel is convenient to clean and replace, and meanwhile, when the geotextile 14 is replaced, whether the stainless steel wire 5 and the connecting spring 12 are corroded and damaged or not is checked simultaneously, if so, the geotextile is replaced in time, and the hoisting of the internal pipe barrel is prevented from being influenced.

The utility model discloses a theory of operation:

after the external pipe barrel is installed and fixed, the internal pipe barrel is installed in the external pipe barrel in sections, and the operation is that a detachable barrel body II 13 is pulled through a connecting spring 12, the detachable barrel body II 13 is slowly placed into the external pipe barrel, then the detachable barrel body II is placed into a water inlet section 3 along a guide groove 15, then a stainless steel wire 5 on the upper portion of the detachable barrel body I9 is pulled, the detachable barrel body I9 is slowly placed into the external pipe barrel, the detachable barrel body I9 is fixed to the top of the detachable barrel body II 13 through a connecting bayonet 10, the connecting spring 12 loses tension and gradually retracts into a hollow structure of the detachable barrel body II 13 in the process, meanwhile, a sealing rubber ring 8 arranged on the lower portion of a sealing support ring 7 is matched with a support ring 2 to form a sealing structure, and soil particles are prevented from being brought into gaps between the external pipe barrel and. When the geotechnical cloth 14 laid inside the detachable barrel body I9 and the detachable barrel body II 13 is damaged along with the increase of the service life, and the whole pressure measuring pipe is silted up and fails, the stainless steel wire 5 is lifted upwards only by using simple lifting equipment respectively, the detachable barrel body I9 is lifted out, the connecting spring 12 is lifted again, the detachable barrel body II 13 is lifted out, the geotechnical cloth 14 laid on the inner wall is cleaned and replaced after disassembly, the sealing rubber ring 8 is replaced, the detachable barrel body II 13 and the detachable barrel body I9 are placed back into the external pipe barrel at the moment, and therefore the pressure measuring pipe function is restored again. In the daily use process, only the clogging condition of the piezometric tube is needed to occur, and the operation is carried out once again according to the operation steps.

The utility model provides a pair of repairable pressure-measuring pipe, ingenious pressure-measuring pipe with original integral erection has divided into outside bobbin and inside bobbin two parts, on the basis that does not influence pressure-measuring pipe working property, when inside bobbin geotechnique cloth takes place the damage and becomes silted up stifled, only need hang out inside bobbin through steel wire and coupling spring, wash and change the geotechnological cloth that the inside pipe wall was laid, hang inside bobbin to outside bobbin in again, just can resume the observation function again. Has the advantages of low cost, simple equipment, simple and convenient operation, repeatable repair and the like.

Finally, the above embodiments are intended only to illustrate the technical solution of the present invention and not to limit it, and although the present invention has been described in detail with reference to the above preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present invention defined by the appended claims.

Claims

1. A repairable piezometric tube, comprising: the repairable piezometric tube comprises an external tube barrel, an internal tube barrel and geotextile (14), wherein the external tube barrel comprises a tube body section (1), a support ring (2) and a water inlet section (3), the tube body section (1) is connected with the water inlet section (3), the inner wall of the joint of the tube body section (1) and the water inlet section (3) is provided with the support ring (2) for supporting the internal tube barrel, and the wall of the water inlet section (3) is provided with a water seepage hole I (4); four guide grooves (15) are uniformly formed in the bottom of the water inlet section (3) along the circumferential direction, and gaps are formed between the four guide grooves (15) and the vertical inner wall of the water inlet section (3) to form guide grooves for placing the internal pipe barrel; and the wall of the inner pipe barrel is uniformly provided with water seepage holes II (11), and the inner wall of the inner pipe barrel is provided with a layer of geotextile (14).

2. A repairable pressure measuring tube according to claim 1, wherein: the inner pipe barrel comprises a detachable barrel body I (9) and a detachable barrel body II (13), the bottom end of the detachable barrel body I (9) is fixedly connected with the top end of the detachable barrel body II (13) through a connecting bayonet (10), the middle part of the wall of the detachable barrel body II (13) is of a hollow structure, a connecting spring (12) is arranged in the hollow structure, the upper end of the connecting spring (12) is fixed at the bottom of the detachable barrel body I (9), and the lower end of the connecting spring (12) is fixed on the bottom wall of the detachable barrel body II (13); the walls of the detachable cylinder body I (9) and the detachable cylinder body II (13) are uniformly provided with water seepage holes II (11), and the inner walls of the detachable cylinder body I (9) and the detachable cylinder body II (13) are respectively provided with a layer of geotextile (14).

3. A repairable piezometric tube according to claim 2, wherein: the upper end of the detachable barrel body I (9) is provided with a sealing support ring (7) matched with the support ring (2), the lower part of the sealing support ring (7) is provided with a sealing rubber ring (8), the top of the sealing support ring (7) is provided with a lifting ring (6), and a stainless steel wire (5) is fixedly connected onto the lifting ring (6).