CN209722923U - It is a kind of for monitoring the sedimentation device of soft base vacuum preloading - Google Patents
It is a kind of for monitoring the sedimentation device of soft base vacuum preloading Download PDFInfo
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- CN209722923U CN209722923U CN201821968494.2U CN201821968494U CN209722923U CN 209722923 U CN209722923 U CN 209722923U CN 201821968494 U CN201821968494 U CN 201821968494U CN 209722923 U CN209722923 U CN 209722923U
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- sedimentation
- soft base
- vacuum preloading
- monitoring
- sealing film
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Abstract
The utility model discloses a kind of for monitoring the sedimentation device of soft base vacuum preloading, vacuum preloading sealing film, including sedimentation tube assembly is equipped in the soft base, the sedimentation tube assembly includes several successively close-connected sedimentation pipes of head and the tail；Wherein the top outer of the sedimentation pipe component is arranged with compatible Coupling therewith, and the Coupling is in hollow form, can sliding axially along the sedimentation pipe, the outer wall of the Coupling and the sealing film are fixedly connected to settle together with the sealing film.Using the utility model, it can directly be connect with sedimentation pipe to avoid sealing film and sealing film is caused to pull destruction, guarantee vacuum preloading effect；And help to reduce the displacement that sedimentation pipe settles downwards, it is ensured that the accuracy of sedimentation deformation monitoring.
Description
Technical field
The utility model relates to foundation settlement deformation monitoring technical fields in geotechnical engineering construction more particularly to one kind to be used for
Monitor the sedimentation device of soft base vacuum preloading.
Background technique
Weak clay foundation big for water, compressibility is high can generate biggish deformation under building load effect
Or modified difference.Therefore, when needing this kind of ground of large-area treatment, such as harbour, airport are built on such ground, generally adopt
First this kind of weak clay foundation is handled with vacuum method.
Vacuum method belongs to one kind of draining concretion method, it is by being laid with horizontal drainage sand bedding course and being arranged in soft base
Vertical drainage body, then air-locked film locking device is laid on sand bedding course, by means of the pipeline being embedded in sand bedding course,
By vacuum evacuation device, make to form negative pressure in the soil body, the pore water in soil body hole is extracted out, so that pore water pressure is reduced,
Increase effective stress, the soil body is made to generate consolidation, reduce posterior settlement, improves foundation capability.
To guarantee construction quality, the soil body delaminating deposition of vacuum method before and after the processing generallys use settlement gauge progress
Monitoring, the measuring system of settlement gauge is mainly by the sensitive probe of magnetic material, scale with a scale, inductance detection device
And it is embedded in sedimentation magnet ring and sedimentation pipe composition in soil layer.Wherein, sedimentation pipe is generally made of flexible plastic pipe, sedimentation pipe
It is arranged a sedimentation magnet ring at a certain distance outside, when stratum settlement drives the synchronous sinking of sedimentation magnet ring.When probe is from drilling
When slowly decentralization encounters pre-buried sedimentation magnet ring in the borehole, the buzzer in inductance detection device will issue sound, at this moment
Scale according to scale in aperture, so that it may calculate sedimentation magnet ring position at a distance from aperture.Become at any time by comparison
The variation for changing each sedimentation magnet ring position, obtains the change in displacement situation of each stratum at any time.
However, using vacuum method in the process of processing, to need to seal film binding to weak clay foundation
Outside sedimentation pipe nozzle, and the vacuum degree in sealing film is required to maintain the vacuum pressure for being equivalent to 80kPa or more；And sedimentation pipe
Compressive deformation be less than the compressive deformation of weak clay foundation, the rate of settling well below weak soil the rate of settling, therefore it is close
Sealer is easy to pull destruction because sealing film caused by differential settlement, it is difficult to which the vacuum level requirements for reaching vacuum preloading influence engineering
Quality.
Utility model content
The sedimentation dress that technical problem to be solved by the utility model is to provide a kind of for monitoring soft base vacuum preloading
It sets, destruction can be pullled to avoid the sealing film of soft base vacuum preloading, guarantee vacuum preloading effect.
In order to solve the above-mentioned technical problem, the utility model provides a kind of sedimentation dress for monitoring soft base vacuum preloading
It sets, including sedimentation tube assembly, the sedimentation tube assembly includes several sedimentation pipes of head and the tail connection；
Wherein the outer cover of the sedimentation pipe component is equipped with compatible Coupling therewith, and the Coupling is set to described heavy
The top for dropping tube assembly, for being fixedly connected with soft base vacuum preloading with sealing film to be settled with the sealing film.
As an improvement of the above scheme, the Coupling includes sleeve and sealing element, the sealing element and the sleeve
Inner wall is fixed, and is adapted with the outer wall of the sedimentation pipe.
As an improvement of the above scheme, the Coupling further includes the microscope carrier on the outside of the sleeve, and the microscope carrier is
Along the convex block of the sleeve radially extended.
As an improvement of the above scheme, the sleeve and the microscope carrier are integrally formed.
As an improvement of the above scheme, the microscope carrier and the sleeve distance from top are 50-400mm.
As an improvement of the above scheme, the microscope carrier is to the length of the sleeve radially extended along the sleeve outer wall
100-600mm。
As an improvement of the above scheme, the longitudinal section of the sealing element is serrated.
As an improvement of the above scheme, the socket joint casing connection being arranged between the sedimentation pipe by outside, sedimentation pipe are first
The position of tail connection is equipped with sealing ring, and the outer diameter of the sealing ring is adapted with the socket joint casing.
As an improvement of the above scheme, the nozzle of the sedimentation pipe is equipped with sealing cover.
As an improvement of the above scheme, the sealing cover includes plunger portion and the pull ring portion above the plunger portion,
The plunger portion outer wall is equipped with screw thread.
Implement the utility model, has the following beneficial effects:
The utility model discloses a kind of for monitoring the sedimentation device of soft base vacuum preloading, including sedimentation tube assembly, institute
Stating sedimentation tube assembly includes several successively close-connected sedimentation pipes of head and the tail；Wherein the top outer of the sedimentation pipe component is arranged
Have a Coupling, the Coupling can sliding axially along the sedimentation pipe, outer wall is used to be fixedly connected with sealing film with institute
Sealing film is stated to settle together.The utility model has the advantages that
1, Coupling settles together with the sealing film, can directly connect with sedimentation pipe to avoid sealing film and cause sealing film
Destruction is pullled, guarantees vacuum preloading effect；
2, sedimentation pipe is connect by the external Coupling being arranged with sealing film, reduces sedimentation pipe by sealing film with settlement of soft foundation
Influence, help reduce the displacement that sedimentation pipe settles downwards, it is ensured that sedimentation deformation monitoring accuracy.
Detailed description of the invention
Fig. 1 is that an a kind of example structure for monitoring the sedimentation device of soft base vacuum preloading of the utility model is illustrated
Figure；
Fig. 2 is a kind of knot of Coupling and sedimentation pipe for monitoring the sedimentation device of soft base vacuum preloading of the utility model
Structure schematic diagram；
Fig. 3 is that a kind of another example structure for monitoring the sedimentation device of soft base vacuum preloading of the utility model is illustrated
Figure；
Fig. 4 is that the utility model is a kind of for monitoring the structural representation of the sealing cover of the sedimentation device of soft base vacuum preloading
Figure.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
As shown in Figure 1, the utility model provides an a kind of reality of settlement monitoring device for soft base vacuum preloading
Example is applied, vacuum preloading sealing film B is equipped on the soft base A, settlement monitoring device includes sedimentation tube assembly, described
Sedimentation tube assembly includes several successively close-connected sedimentation pipes 1 of head and the tail；Wherein the top outer of the sedimentation pipe component is arranged
Have a compatible Coupling 2 therewith, the Coupling 2 is in hollow form, can sliding axially along the sedimentation pipe 1, the set
The outer wall of fitting 2 and the sealing film B are fixedly connected to settle together with the sealing film B.
In soft base A vacuum preloading construction, it is necessary first to the surface soft base A (stabilization zone) be laid with sand bedding course C, by
It is laid with drainage and vacuum tube in sand bedding course C, and is being laid with sealing film B above, air-extractor is finally used, if jet vacuum pump is to close
Soft base A below sealer B is vacuumized, general that the vacuum degree under sealing film B is required to be greater than 80kPa, will seal the sky below film B
Gas and steam discharge, achieve the effect that vacuum preloading.When carrying out settlement monitoring, since sedimentation tube assembly is embedded in soft base A, and
For convenient for monitoring and acquiring settling data, settle protruded from the top of tube assembly sealing film B, for guarantee sealing effect, need by
The sealing film B at the embedded place of sedimentation tube assembly is tightened with sedimentation tube assembly, can remain corresponding true to ensure to seal the environment under film B
Reciprocal of duty cycle.
Specifically, as shown in Fig. 2, Coupling 2 described in the present embodiment includes sleeve 21 and sealing element 22, the sealing element 22
It fixes with the inner wall of the sleeve 21, and is adapted with the outer wall of the sedimentation pipe 1.The sealing element 22 is used for and the sedimentation
The sealing of 1 outer wall of pipe, the longitudinal section of the sealing element 22 is serrated.To ensure sleeve 21 in the active force of sealing film B and soft base A
Under can settle together, while sealing film B being avoided to pull destructions, the Coupling 2 further includes the load on the outside of the sleeve 21
Platform 23, the microscope carrier 23 are the convex block radially extended along the sleeve 21.The outer profile of the microscope carrier 23 can be circle,
It can be regular polygon, but not limited to this.The microscope carrier 23 and 21 distance from top of sleeve are preferably 50-400mm, the load
Platform 23 is preferably 100-600mm along the length of 21 outer wall of sleeve to the sleeve 21 radially extended, the load under the size
Platform 23 and sleeve 21 can overcome between sealing element 22 and sedimentation pipe 1 under the pressure of soft base A and the pulling force effect of sealing film B
Frictional force, with soft base A and sealing film B settle together.
The present embodiment by sedimentation tube assembly top outer be arranged Coupling 2, the sleeve 21 of the Coupling 2 with it is close
Sealer B is fixedly connected, and when sealing film B with soft base A sedimentation, sleeve 21 is under the pulling force effect of sealing film B along the axis of sedimentation pipe 1
It to sliding, is settled together with sealing film B, avoids sealing film B from pullling destruction, influence vacuum effectiveness；And can reduce sedimentation pipe 1 by
The influence of film B and soft base A sedimentation is sealed, help reduces the displacement that sedimentation pipe 1 settles downwards, it is ensured that sedimentation deformation monitors accurate
Property.
More preferably, referring to Fig. 3, the utility model provides a kind of settlement monitoring device for soft base vacuum preloading
Another embodiment, by being arranged Coupling 2 in the top outer of sedimentation tube assembly, the microscope carrier 23 of the Coupling 2 is set the embodiment
In laying sand bedding course C, and sleeve 21 is prominent to outside sand bedding course, and the sealing film B is covered on the microscope carrier 23, and fixed thereto,
The sealing film B is that sandbag is stacked in the top of 23 contact position of microscope carrier.Since sealing film B is compared with the area that microscope carrier 23 contacts
Greatly, when seal film B with soft base A settle when, Coupling 2 sealing film B pulling force effect under along sedimentation pipe 1 in axial sliding
In the process, sealing film B is not susceptible to pull and destroy, and will not influence vacuum effectiveness；And sedimentation pipe 1 can be reduced by sealing film B
And the influence of soft base A sedimentation, help reduce the displacement that sedimentation pipe 1 settles downwards, it is ensured that the accuracy of sedimentation deformation monitoring.
As shown in figure 4, sealing cover 3 is arranged in the nozzle of sedimentation pipe 1 in the present embodiment, and during vacuum preloading, sealing
The lid of lid 3 closes the nozzle position in the sedimentation pipe 1, avoids sedimentation pipe 1 from being connected to outside, influences the effect vacuumized；Work as needs
When collecting settling data, the sealing cover 3 is opened, sedimentation test is carried out.To guarantee good sealing effect, and beaten convenient for the later period
The sealing cover 3 is opened, the sealing cover 3 includes plunger portion 31 and the pull ring portion 32 above the plunger portion 31, the column
31 outer wall of piston part is equipped with screw thread.It should be noted that the implementation of the sealing cover 3 be not limited to it is described in this embodiment
Mode, as long as can be realized the structure for being sealed the nozzle of sedimentation pipe 1.
Since the depth requirements segmentation that the installation of sedimentation pipe 1 needs to be designed according to soft base A is installed, between the sedimentation pipe 1
It is preferred that being connected by the socket joint casing 4 that outside is arranged.Since the sedimentation pipe 1 of head and the tail connection easily infiltrates into silt in junction, this
Preferably sealing ring 5, the outer diameter of the sealing ring 5 and the socket joint set is arranged in the position that sedimentation pipe 1 connects from beginning to end first in embodiment
Pipe 4 is adapted, and is carried out tightening fixation later with screw 6 again, is avoided blocking in sedimentation pipe 1, is influenced settlement monitoring.
In conclusion implement the utility model has the following beneficial effects:
The utility model discloses a kind of for monitoring the sedimentation device of soft base vacuum preloading, including sedimentation tube assembly, institute
Stating sedimentation tube assembly includes several successively close-connected sedimentation pipes of head and the tail；Wherein the top outer of the sedimentation pipe component is arranged
Have a Coupling, the Coupling can sliding axially along the sedimentation pipe, outer wall is used to be fixedly connected with sealing film with institute
Sealing film is stated to settle together.The utility model has the advantages that
1, Coupling settles together with the sealing film, can directly connect with sedimentation pipe to avoid sealing film and cause sealing film
Destruction is pullled, guarantees vacuum preloading effect；
2, sedimentation pipe is connect by the external Coupling being arranged with sealing film, reduces sedimentation pipe by sealing film with settlement of soft foundation
Influence, help reduce the displacement that sedimentation pipe settles downwards, it is ensured that sedimentation deformation monitoring accuracy.
3, sealing ring is arranged in the junction between sedimentation pipe, while avoiding gas leakage, soil is effectively prevent to enter sedimentation
Pipe causes blocking in pipe, avoids influencing settlement monitoring；
4, sealing cover is set in the nozzle of sedimentation pipe, enhances vacuumizing effect.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly cannot be practical to limit with this
Novel interest field, therefore equivalent variations made according to the claim of the utility model still belong to what the utility model was covered
Range.
Claims (10)
1. it is a kind of for monitoring the sedimentation device of soft base vacuum preloading, vacuum preloading sealing film is equipped in the soft base,
It is characterized in that, including sedimentation tube assembly, the sedimentation tube assembly includes several successively close-connected sedimentation pipes of head and the tail；
Wherein the top outer of the sedimentation pipe component is arranged with compatible Coupling therewith, and the Coupling is in hollow form,
It can sliding axially along the sedimentation pipe, the outer wall of the Coupling is fixedly connected with the sealing film with the sealing film
It settles together.
2. as described in claim 1 for monitoring the sedimentation device of soft base vacuum preloading, which is characterized in that the Coupling packet
Sleeve and sealing element are included, the inner wall of the sealing element and the sleeve is fixed, and is adapted with the outer wall of the sedimentation pipe.
3. as claimed in claim 2 for monitoring the sedimentation device of soft base vacuum preloading, which is characterized in that the Coupling is also
Including the microscope carrier being set on the outside of the sleeve, the microscope carrier is the convex block radially extended along the sleeve.
4. as claimed in claim 3 for monitoring the sedimentation device of soft base vacuum preloading, which is characterized in that the sleeve and institute
State microscope carrier integrated molding.
5. as claimed in claim 3 for monitoring the sedimentation device of soft base vacuum preloading, which is characterized in that the microscope carrier and institute
Stating sleeve distance from top is 50-400mm.
6. the sedimentation device for being used to monitor soft base vacuum preloading as claimed in claim 3 or 5, which is characterized in that the microscope carrier
Along the sleeve outer wall to the length of the sleeve radially extended be 100-600mm.
7. as claimed in claim 2 for monitoring the sedimentation device of soft base vacuum preloading, which is characterized in that the sealing element
Longitudinal section is serrated.
8. as described in claim 1 for monitoring the sedimentation device of soft base vacuum preloading, which is characterized in that the sedimentation pipe it
Between by outside be arranged socket joint casing connection, sedimentation pipe head and the tail connection position be equipped with sealing ring, the outer diameter of the sealing ring
It is adapted with the socket joint casing.
9. as described in claim 1 for monitoring the sedimentation device of soft base vacuum preloading, which is characterized in that the sedimentation pipe
Nozzle is equipped with sealing cover.
10. as claimed in claim 9 for monitoring the sedimentation device of soft base vacuum preloading, which is characterized in that the sealing cover
Pull ring portion including plunger portion and above the plunger portion, the plunger portion outer wall are equipped with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821968494.2U CN209722923U (en) | 2018-11-27 | 2018-11-27 | It is a kind of for monitoring the sedimentation device of soft base vacuum preloading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821968494.2U CN209722923U (en) | 2018-11-27 | 2018-11-27 | It is a kind of for monitoring the sedimentation device of soft base vacuum preloading |
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| Publication Number | Publication Date |
|---|---|
| CN209722923U true CN209722923U (en) | 2019-12-03 |
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ID=68676198
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821968494.2U Active CN209722923U (en) | 2018-11-27 | 2018-11-27 | It is a kind of for monitoring the sedimentation device of soft base vacuum preloading |
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| CN (1) | CN209722923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236205A (en) * | 2020-01-10 | 2020-06-05 | 深圳市蛇口招商港湾工程有限公司 | Soft soil foundation vacuum preloading construction structure and construction method thereof |
-
2018
- 2018-11-27 CN CN201821968494.2U patent/CN209722923U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236205A (en) * | 2020-01-10 | 2020-06-05 | 深圳市蛇口招商港湾工程有限公司 | Soft soil foundation vacuum preloading construction structure and construction method thereof |
| CN111236205B (en) * | 2020-01-10 | 2021-09-07 | 深圳市蛇口招商港湾工程有限公司 | Soft soil foundation vacuum preloading construction structure and construction method thereof |
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