CN112880637A - Dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring - Google Patents
Dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring Download PDFInfo
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- CN112880637A CN112880637A CN202110145950.3A CN202110145950A CN112880637A CN 112880637 A CN112880637 A CN 112880637A CN 202110145950 A CN202110145950 A CN 202110145950A CN 112880637 A CN112880637 A CN 112880637A
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- water level
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- pipe fitting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
Abstract
The invention relates to the technical field of engineering safety monitoring, in particular to a dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring, which comprises a base, a measuring device and a measuring device, wherein the base is arranged at the top of a hidden culvert structure; one end of the pipe fitting is fixedly arranged in the base, the other end of the pipe fitting extends to be close to the ground, and a water permeable structure is arranged on the pipe fitting; the monitoring structure is arranged at one end of the hidden culvert structure, is suitable for monitoring the settlement deformation of the hidden culvert structure through the elevation change of the pipe fitting and monitoring the underground water level through the water level in the pipe fitting. Set up the structure of permeating water on the pipe fitting for groundwater can get into to the pipe fitting in, realize ground water level monitoring through the water level of measuring in the pipe fitting, make this secret dark culvert engineering subside warp and the dual-purpose measurement station of ground water level monitoring can monitor simultaneously and subside deformation value and ground water level, need not set up a ground water level monitoring well alone. Therefore, the burying cost of the monitoring facilities, particularly the drilling cost, is reduced, and the maintenance cost is also reduced.
Description
Technical Field
The invention relates to the technical field of engineering safety monitoring, in particular to a dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring.
Background
Because the water resource is unevenly distributed and the water requirements of different regions are different, more and more countries or regions adopt water transfer and delivery projects to solve the water requirement problem. In order to ensure the safe and normal operation of the water delivery project, a deformation observation point is required to be arranged to monitor the deformation of the water delivery project.
At present, for an underground water delivery hidden culvert structure, because underground excavation or shield construction is mostly adopted, the embedding depth is large, the direct observation of a measuring point arranged on the surface is difficult, a concrete observation pier is mostly poured in a soil body above the structure, and the deformation of the hidden culvert structure is indirectly measured by measuring the deformation of the soil body. However, the settlement observed by the method is the settlement of the soil body on the upper part of the dark culvert, and the settlement monitoring result of the dark culvert is directly influenced due to the instability of the soil body.
The underground water level is an important factor influencing the running state of an underground water delivery hidden culvert structure, and an independent underground water level monitoring facility is buried in a drilling mode for monitoring the underground water level of an engineering position. However, when settlement deformation and groundwater level observation are performed, two observation points are usually required to be set for independent measurement, so that a large amount of manpower and material resources are required to be invested, the drilling cost is increased, and meanwhile, the maintenance cost is also increased.
Disclosure of Invention
Therefore, the invention aims to overcome the defect that two observation points need to be arranged for independent measurement when the settlement deformation and the underground water level monitoring are carried out in the prior art, thereby providing a dual-purpose measuring point for the settlement deformation and the underground water level monitoring of underground culvert engineering.
In order to solve the technical problem, the invention provides a dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring, which comprises a base, a measuring device and a measuring device, wherein the base is arranged at the top of a culvert structure; one end of the pipe fitting is fixedly arranged in the base, the other end of the pipe fitting extends to the ground, and a water permeable structure is arranged on the pipe fitting; the monitoring structure is arranged at one end, away from the hidden culvert structure, of the pipe fitting and is suitable for monitoring the settlement deformation of the hidden culvert structure and the underground water level through the water level in the pipe fitting through the elevation change of the pipe fitting.
Optionally, the outer wall of the pipe fitting is provided with a reverse filtering structure, and the installation position of the reverse filtering structure corresponds to the arrangement position of the water permeable structure.
Optionally, the water permeable structure is a through hole formed in the pipe fitting.
Optionally, the pipe fitting comprises a core pipe and a sleeve, wherein the bottom of the core pipe is installed in the base, the sleeve is sleeved on the outer wall of the core pipe, and the water permeable structure is arranged on the core pipe and the sleeve.
Optionally, the monitoring structure comprises a deformation measuring mark and a water level observation hole located in the center of the monitoring structure.
Optionally, the reverse filtering structure is composed of a geotextile and a copper wire mesh.
Optionally, the support structure is arranged between the core tube and the sleeve, and the support structure is arranged at intervals along the axial direction of the core tube.
Optionally, an anchoring member is arranged at one end of the pipe fitting, where the pipe fitting and the base are installed, and the anchoring member is arranged in the base.
Optionally, a protection well for protecting the pipe and the monitoring structure is arranged at a position close to the ground, and a protection cover is arranged on the protection well.
The technical scheme of the invention has the following advantages:
1. the invention provides a dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring, which comprises a base, a measuring device and a measuring device, wherein the base is arranged at the top of a hidden culvert structure; one end of the pipe fitting is fixedly arranged in the base, the other end of the pipe fitting extends to be close to the ground, and a water permeable structure is arranged on the pipe fitting; the monitoring structure is arranged at one end, away from the hidden culvert structure, of the pipe fitting and is suitable for monitoring the settlement deformation of the hidden culvert structure and the underground water level through the water level in the pipe fitting through the elevation change of the pipe fitting.
The base sets up at the upper surface of secretly containing the structure to do not destroy secretly containing the structure, the pipe fitting is installed at the central part of base, and the base has played the effect of fixed pipe fitting, and will secretly contain the structure and be connected into a whole with the pipe fitting, through the elevation of the monitoring structure on the top of pipe fitting, thereby survey secretly containing the elevation change of structure, fully guarantee to survey the accuracy of subsiding the deflection value. Meanwhile, the deformation monitoring points directly act on the underground culvert structure, reliable and effective underground culvert structure deformation observation points are established, the settlement deformation observation of the underground culvert structure can be directly carried out, and the influence of the soil deformation at the top of the underground culvert structure on the observation result is reduced. And set up the structure of permeating water on the pipe fitting for groundwater can get into to the pipe fitting in, then in the monitoring structure of recycling, observe ground water level, make this secret dark culvert engineering subside warp and the dual-purpose measurement station of ground water level monitoring can be used for monitoring secret dark culvert structure settlement deformation value and ground water level simultaneously, need not set up a ground water level monitoring well alone again. Therefore, the burying cost of monitoring facilities, particularly the drilling cost, is reduced, and meanwhile, the maintenance cost and the facility floor occupation cost are also reduced.
2. The invention provides a dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring. The anti-structure of straining can effectually avoid in the impurity in the underground soil gets into the pipe fitting, and the influence is to the accurate value of ground water level monitoring.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a dual-purpose measuring point for settlement deformation of underground culvert engineering and underground water level monitoring provided by the invention.
1-dark culvert structure; 2-a base; 3-a pipe fitting; 4-a sleeve; 5-a sleeve water-permeable section; 6-core tube; 7-core tube water-permeable section; 8-water level observation hole; 9-settlement deformation observation punctuation; 10-a monitoring structure; 11-a reverse filtration structure; 12-a support structure; 13-an anchor; 14-a guard well; 15-protective cover.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the dual-purpose measuring point for settlement deformation and groundwater level monitoring of the underground culvert engineering provided by the embodiment of the invention comprises a base 2 arranged at the top of a culvert structure 1; one end of the pipe 3 is fixedly arranged in the base 2, the other end of the pipe extends to be close to the ground, and a water permeable structure is arranged on the pipe 3; monitoring structure 10 locates pipe fitting 3 keeps away from dark culvert structure 1's one end is suitable for through pipe fitting 3's elevation change monitoring dark culvert structure 1's settlement deflection and the water level monitoring groundwater level through in the pipe fitting 3.
The base 2 is arranged on the upper surface of the hidden culvert structure 1, the structure of the upper surface of the hidden culvert structure 1 is not damaged, the pipe fitting 3 is arranged at the central part of the base 2, and the base 2 plays a role in fixing the pipe fitting 3; the hidden culvert structure 1, the base 2 and the pipe fitting 3 are connected into a whole, and the elevation of the monitoring structure 10 on the top end of the pipe fitting 3 is used for observing the elevation change of the hidden culvert structure 1, so that the accuracy of observing the settlement deformation value is fully guaranteed. Meanwhile, the deformation monitoring points directly act on the underground culvert structure, reliable and effective underground culvert structure deformation observation points are established, the settlement deformation observation of the underground culvert structure can be directly carried out, and the influence of the soil deformation at the top of the underground culvert structure on the observation result is reduced. And set up the structure of permeating water on pipe fitting 3 for groundwater can enter into pipe fitting 3 in, then recycle monitoring structure 10 monitoring settlement deformation value, simultaneously, can also utilize this monitoring structure monitoring ground water level, make this secret dark culvert engineering subside deformation and ground water level monitoring dual-purpose measurement station can monitor settlement deformation value and monitoring ground water level simultaneously, need not set up a ground water level monitoring well alone. Thus reducing the cost of burying the monitoring facilities, especially the drilling cost, and also reducing the maintenance cost of the facilities. In the present embodiment, the base 2 is made of concrete.
Furthermore, an inverse filtering structure 11 is arranged on the outer wall of the pipe fitting 3, and the installation position of the inverse filtering structure 11 corresponds to the arrangement position of the water permeable structure; specifically, the reverse filter structure 11 is composed of a geotextile and a copper wire mesh, the geotextile is arranged on the outer wall of the sleeve 4, and the specification is 250g/m2～400g/m2The outer wall of the non-woven geotextile fabric is provided with a 100-120-mesh copper wire mesh, so that underground soil particles and other impurities are prevented from entering the pipe fitting 3 to cause the pipe fitting to be silted up, and the underground water level monitoring is influenced. Of course, the reverse filtering structure 11 can be made of other materials.
The pipe fitting 3 comprises a core pipe 6 arranged in the base 2 and a sleeve 4 sleeved on the outer wall of the core pipe 6, and the water permeable structure is arranged on the core pipe 6 and the sleeve 4. The sleeve 4 plays a role in isolating the internal core pipe 6 from an external soil body, so that the monitoring data directly reflect the settlement deformation of the underground culvert structure, the influence of the friction force of the soil body on the monitoring result is reduced, and the reliability of the monitoring data is further fully ensured. The sleeve 4 is made of DN80 galvanized steel pipe, and the core tube 6 is made of DN50 galvanized steel pipe. And a support structure 12 is arranged between the core tube 6 and the sleeve 4, and the support structures 12 are arranged at intervals along the axial direction of the core tube 6. In this embodiment, the support structures 12 are guide rings made of rubber, the inner diameter of each guide ring is 55mm, the outer diameter of each guide ring is 73mm, the thickness of each guide ring is 20mm, and the distance between two adjacent support structures 12 is 2 m. The core tube 6 is made of DN50 galvanized steel tube, the sleeve 4 is made of DN80 galvanized steel tube, and the core tube 6 and the sleeve 4 are fixedly connected through the supporting structure 12.
In this embodiment, the water permeable structure is a through hole formed in the pipe 3, that is, a water permeable section of the core pipe 6 is formed on the core pipe 6, and a water permeable section of the sleeve 4 is formed on the sleeve 4; the lower ends of the permeable section of the core pipe 6 and the permeable section of the sleeve 4 are 0.5m to 1.0m away from the bottom of the core pipe 6, and the length of the permeable section of the core pipe 6 and the length of the permeable section of the sleeve 4 can be 1.0 m; the specific length can be set according to the actual situation.
The length of the core tube 6 is greater than the length of the casing 4. In this embodiment, the sleeves 4 extend from both ends of the core pipe 6, and the sleeves 4 provide a moving space for the core pipe 6, so as to avoid hindering the core pipe 6 from changing along with the elevation of the culvert structure 1.
In the present embodiment, the monitoring structure 10 includes a sedimentation deformation measurement mark 9 and a water level observation hole 8 located at the center of the monitoring structure 10. The sedimentation deformation measuring mark 9 is reliably connected with the core pipe 6, and sedimentation observation is carried out by utilizing the sedimentation deformation measuring mark 9, wherein the sedimentation deformation measuring mark 9 can be made of stainless steel or other appropriate materials. The diameter of the water level observation hole 8 is 30 mm-40 mm, and the measurement of the groundwater variation has two modes based on the placement of a flat water level gauge or a water level sensor: the first method adopts a flat water level gauge to manually measure the underground water level, namely, a water level sensing probe extends into a core pipe 6, and underground water level observation is monitored by measuring the position of the extending position of the water level sensing probe; the second is to hang the water level sensor and observe underground.
One end of the pipe fitting 3, which is mounted on the base 2, is provided with an anchoring piece 13, and the anchoring piece 13 is arranged in the base 2. In this embodiment, the anchoring members 13 may be a steel bar root, and the anchoring members 13 are welded to the bottom of the core tube 6 in a crossed manner, so as to ensure reliable connection strength, stability and accuracy between the pipe 3 and the base 2. The anchoring member 13 is a steel bar with a length of not less than 200mm and a diameter of not less than phi 12mm, and the anchoring member 13 needs to be subjected to rust removal treatment.
Further, a protection well 14 for protecting the tubular 3 and the monitoring structure 10 is provided near the ground, and a protection cover 15 is provided on the protection well 14. The protection well 14 may be bricked or formed by concrete casting, but may be made in other forms. The shape of the guard well 14 may be square or circular, although other shapes are possible. The thickness of the protection well 14 may be 100-. The protective cover 15 is arranged above the protective well 14, and finally, a lockset can be arranged on the protective cover 15 to prevent non-working personnel from opening or mistakenly entering the protective well to cause unnecessary injury. The protective cover 15 may be made of stainless steel, although other materials are possible. If other materials are used, such as ordinary steel, corrosion protection is required.
And (3) field measurement lofting, determining the plane position of the underground culvert structure 1 and the top elevation of the underground culvert structure 1 according to the design data of the concealed culvert engineering, performing current elevation measurement, and determining the burial depth of the concealed culvert structure 1. The processing length of the core tube 6 and the sleeve 4 is determined according to a construction design drawing and a monitoring section control elevation. And (3) welding anchoring pieces 13 with the diameter of 200mm and the diameter of 12 at the bottom of the core pipe 6 in a cross mode, wherein the anchoring pieces 13 need to be subjected to rust removal treatment, the part of the core pipe 6 embedded in concrete is only subjected to cleaning treatment, water permeable holes are processed in the water permeable section of the core pipe 6, and water permeable holes are processed in the water permeable section of the sleeve 4. The diameter of the permeable holes is 6mm, the permeable holes are arranged in a quincunx shape, the row spacing is 9mm, the distance between the permeable section of the core pipe 6 and the permeable section of the sleeve 4 is 0.5mm from the bottom of the core pipe 6, and the permeable length of the permeable section of the core pipe 6 and the permeable length of the sleeve 4 are 2.5 mm. The outer wall of the water permeable section of the sleeve 4 is provided with a water permeable structure. The drilling machine adopts an engineering drilling machine, the hole diameter of a drilled hole is 250mm, the hole position deviation needs to be less than 20cm, and the inclination of the drilled hole is controlled within 1%. And (3) adopting waterless operation, drilling in a difficult drilling position by adopting clean water, and determining whether to continue drilling or stop drilling according to the buried depth data of the hidden culvert structure 1 and the actual drilling state when the drilling depth is close to the preset drilling depth. After drilling is complete, the prepared pipe 3 is lowered into the hole and the pipe is kept vertical, and concrete is poured into the hole to form a 40cm thick foundation 2. And (3) backfilling the drilled holes by adopting an original soil backfilling mode, backfilling to the ground, and keeping the top of the pipe body fixed and keeping the pipe body in a vertical state during backfilling. The monitoring structure 10 is installed and fixed on the top of the pipe body in a fastening bolt and welding mode, so that the monitoring structure 10 is kept in a horizontal state. Meanwhile, a punching mode is adopted, and a water level observation hole 8 with the aperture of 35mm is machined in the monitoring structure 10. The outside of the pipe fitting 3 is bricked into a square protection well 14, the outer side of the protection well 14 is coated with mortar and brushed, the periphery of the protection well is backfilled to the original ground elevation by original soil, a steel protection cover 15 is additionally arranged, and the protection cover 15 needs to be subjected to anti-corrosion treatment and is provided with facility marks.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (9)
1. The utility model provides a dual-purpose measurement station of underground hidden culvert engineering settlement deformation and ground water level monitoring which characterized in that includes:
the base (2) is arranged at the top of the hidden culvert structure (1);
one end of the pipe (3) is fixedly arranged in the base (2), the other end of the pipe extends to be close to the ground, and a water permeable structure is arranged on the pipe (3);
monitoring structure (10), locate pipe fitting (3) are kept away from the one end of secretly containing structure (1) is suitable for through the elevation change monitoring of pipe fitting (3) the settlement deflection of secretly containing structure (1) and through the water level monitoring groundwater level in the pipe fitting.
2. The dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring as claimed in claim 1, wherein an inverted filter structure (11) is arranged on the outer wall of the pipe fitting (3), and the installation position of the inverted filter structure (11) corresponds to the arrangement position of the water permeable structure.
3. The dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring as claimed in claim 2, wherein the water permeable structure is a through hole arranged on the pipe fitting (3).
4. The dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring as claimed in claim 2 or 3, wherein the pipe fitting (3) comprises a core pipe (6) installed in the base (2) and a sleeve (4) sleeved on the outer wall of the core pipe (6), and the water permeable structure is arranged on the core pipe (6) and the sleeve (4).
5. The dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring as claimed in claim 4, wherein the monitoring structure (10) comprises a settlement deformation measuring mark (9) and a water level observation hole (8) positioned in the center of the monitoring structure (10).
6. The dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring as claimed in claim 4, wherein the reverse filtering structure (11) is composed of geotechnical non-woven fabric and copper wire mesh.
7. The dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring as claimed in any one of claims 4-6, further comprising a support structure (12) arranged between the core pipe (6) and the casing pipe (4), wherein the support structure (12) is arranged at intervals along the axial direction of the core pipe (6).
8. The dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring as claimed in claim 7, wherein an anchoring piece (13) is arranged at one end of the pipe fitting (3) mounted with the base (2), and the anchoring piece (13) is arranged in the base (2).
9. The dual-purpose measuring point for underground culvert engineering settlement deformation and underground water level monitoring as claimed in claim 8, wherein a protection well (14) for protecting the pipe fitting (3) and the monitoring structure (10) is arranged at a position close to the ground, and a protective cover (15) is arranged on the protection well (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110145950.3A CN112880637A (en) | 2021-02-02 | 2021-02-02 | Dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110145950.3A CN112880637A (en) | 2021-02-02 | 2021-02-02 | Dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring |
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| CN112880637A true CN112880637A (en) | 2021-06-01 |
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| CN202110145950.3A Pending CN112880637A (en) | 2021-02-02 | 2021-02-02 | Dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702997A (en) * | 2021-06-11 | 2021-11-26 | 广州市运通水务有限公司 | Method for forming visual data for dark culvert structure detection |
| CN115235418A (en) * | 2022-07-22 | 2022-10-25 | 中交第一航务工程勘察设计院有限公司 | Water level layering and settling dual-purpose instrument |
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| KR200416324Y1 (en) * | 2006-02-24 | 2006-05-12 | (주)테스콤엔지니어링 | The smooth ground |
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| CN115235418A (en) * | 2022-07-22 | 2022-10-25 | 中交第一航务工程勘察设计院有限公司 | Water level layering and settling dual-purpose instrument |
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