CN206353020U - A kind of reference induction band for subgrade settlement automatic Observation - Google Patents
A kind of reference induction band for subgrade settlement automatic Observation Download PDFInfo
- Publication number
- CN206353020U CN206353020U CN201621456618.XU CN201621456618U CN206353020U CN 206353020 U CN206353020 U CN 206353020U CN 201621456618 U CN201621456618 U CN 201621456618U CN 206353020 U CN206353020 U CN 206353020U
- Authority
- CN
- China
- Prior art keywords
- rigid pipe
- subgrade settlement
- automatic observation
- induction band
- reference induction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses a kind of reference induction band for subgrade settlement automatic Observation, and it includes the rigid pipe being mutually stitched together for being used to be embedded in base course, and each rigid pipe is stitched together by being flexibly connected head；The resistance coil of sensing sedimentation stretching change, each resistance coil mutually insulated are separately provided in the rigid pipe, and the end of last rigid pipe is individually transmitted signals to by transfer wire；The two ends sealing of the rigid pipe, one end is connected on signal output port by transfer wire.The purpose of this utility model is to provide a kind of reference induction band for subgrade settlement automatic Observation, conveniently continues efficiently to monitor subgrade settlement situation there is provided the reference resistance value under same equitemperature, a humidity condition, is easy to accurately measure；And the situation in whole roadbed section can be fed back to continuity, sensitivity is high, convenient and practical, is not limited by road conditions.
Description
Technical field
The utility model belongs to roadbed monitoring field, and specially a kind of reference for subgrade settlement automatic Observation senses
Band.
Background technology
Highway subgrade is especially more multiple in regional area Hydroclimate condition throughout the year by the percussion of vehicular load
It is miscellaneous, cause roadbed easily to occur sedimentation and deformation.In recent years, with the development of transportation, vehicle flow is growing day by day, vehicle
Load also has the trend constantly increased, or even occurs in that overweight car load exceedes the situation of 3 ~ 4 times of design load, and these factors are tight
The operation situation of roadbed is degrading again.Sedimentation, which will occur, for roadbed to cause Uneven road suitable, the comfortableness and peace of influence vehicle operation
Quan Xing.In privileged sites, such as bridgehead position, the degree that car is jumped in conference increase is crossed in subgrade settlement, and the percussion of formation is in turn
Can Accelerated subsidence, formation vicious circle.The load that railway bed is subject to is bigger, and ride comfort requires higher, therefore sedimentation is wanted
Ask also tightened up.
Roadbed as shown in Figure 1, in use for some time, because the sedimentation of bottom roadbed 80 is caved in, when causing to pave the way
First basic unit 81, the second basic unit 82, the 3rd basic unit 83 follow sedimentation to be formed 85 at surfaces collapse, ultimately result in road surface 84 and are formed such as
86 at slight crack in diagram, so cause road surface 84 to destroy, influence vehicle pass-through, or even traffic accident can be caused.
At present, being generally used for the measuring method of road foundation sedimentation both at home and abroad includes：Embedded sedimentation plate, such as Fig. 2, Fig. 3 institute
Show, after the completion of the arrangement of roadbed 80, after detection meets basic unit's construction conditions, laid in the position of intermediate isolating band 87 of road
Component is marked in measurement as shown in Figure 3, and it includes the bottom plate vertical rod 71 for being arranged on the bottom plate 70 of bottom, being vertically connected with bottom plate 70
And expose the measurement mark 72 on road surface；Then one layer is often laid, one layer of measurement mark component, the sedimentation feelings to detect this layer is put
Condition.After the completion of road surfacing, the elevation information of periodic detection measurement mark 72 forms continuity data, monitors sedimentation situation.Cause
If being settled for road surface, it occurs that the bottom plate 70 as shown in the right in Fig. 2 follows the situation of sedimentation, so as to feed back to measurement
On the elevation of mark 72, i.e., sedimentation D occurs for a certain basic unit, then the elevation change for representing the measurement mark 72 of the basic unit corresponds to D.
Low with upper type measuring accuracy, test automation degree is low, and can only reflect certain point（It placed bottom plate 70
Put) sedimentation change, and need pavement structure to support, can have the pre-buried measurement mark component in position, and also have for pre-buried
Construction requirement, it is cumbersome, it is relatively more difficult to promote the use of a large area.
It is understood that resistance=resistance coefficient × length ÷ cross-sectional areas, resistance strain gage stretching, then electrical resistance wire grid elongation,
Cross-sectional area diminishes simultaneously, so resistance increases.It can be considered to measure the resistance value size of resistance strain gage to come actual anti-
Answer the tensile deformation relation of resistance.
It is considered herein that resistance-strain equipment is pre-buried pre-buried to replace measuring mark component, pass through the real-time sense of detection resistance change
Know the sedimentation change of base course.The application provides the correction factor of humiture for experimental group, entered as the reference group of experimental group
One step improves the measuring accuracy of experimental group.
Utility model content
The purpose of this utility model is that there is provided a kind of reference sensing for subgrade settlement automatic Observation for problem above
Band, conveniently continues efficiently to monitor subgrade settlement situation there is provided the reference resistance value under same equitemperature, a humidity condition, is easy to
Accurately measure；And the situation in whole roadbed section can be fed back to continuity, sensitivity is high, convenient and practical, not by road conditions
Limitation.
To realize object above, the technical solution adopted in the utility model is：It is a kind of for subgrade settlement automatic Observation
With reference to induction band, it includes the rigid pipe being mutually stitched together for being used to be embedded in base course（1）, each rigid pipe（1）It is logical
Cross flexible connection head（9）It is stitched together；The rigid pipe（1）Inside be separately provided for sensing humiture change, but not by
The resistance coil of subgrade settlement influence（2）, each resistance coil（2）Mutually insulated, and individually pass through transfer wire（3）Fortune
It is defeated to arrive last rigid pipe（1）End；The rigid pipe（1）Two ends sealing, one end passes through transfer wire（3）It is connected to
Signal output port（7）On.
Further, the rigid pipe（1）Outer surface be provided with top layer sheath（6）.
Further, the top layer sheath（6）It is made of flexible silica gel material, and top layer sheath（6）Surface it is uniform
Have it is some grab ground stud（61）, the thickness of layer of silica gel is 1cm ~ 2cm, grabs ground stud（61）Protrusion height be 1cm ~ 2cm.
Further, the rigid pipe（1）It is made of stainless steel material.
Further, the rigid pipe（1）The resistance coil of interior setting（2）Subregion is fixed on rigid pipe（1）It is internal.
Further, the rigid pipe（1）Filled with for fixed resistance coil（2）Inertia packed layer（5）.
Further, the inertia packed layer（5）For silica gel.
Further, the signal output port（7）On be provided with junction block（8）.
Further, the flexible connection head（9）Including being used for and rigid pipe（1）The pipe end connector of threaded connection（91）
And two pipe end connectors（91）The elastic packing connector linked together（92）.
The beneficial effects of the utility model：A kind of reference induction band for subgrade settlement automatic Observation of the utility model,
Conveniently continue efficiently to monitor subgrade settlement situation there is provided the reference resistance value under same equitemperature, a humidity condition, be easy to precisely
Measurement；And the situation in whole roadbed section can be fed back to continuity, sensitivity is high, convenient and practical, is not limited by road conditions.
The sedimentation situation of change continuously reflected using resistance strain measuring device at sedimentation base course, is surveyed by resistance-strain
Resistance variations carry out accurate characterization settling data caused by the stretching that amount device occurs with subgrade settlement, its accuracy and reliability
It is stronger.
The unique reference group design used in the utility model, is avoided that reference group data are affected, test is more
Precisely.
Brief description of the drawings
Fig. 1 is existing road structure and sedimentation demonstration schematic diagram.
Fig. 2 is existing subgrade settlement measurement demonstration schematic diagram.
Fig. 3 is the measurement mark component diagram used when existing subgrade settlement is measured.
Fig. 4 is the utility model main cross-sectional schematic diagram.
Fig. 5 is close-up schematic view at A in Fig. 4.
Fig. 6 is the utility model junction structure schematic cross-sectional view.
Label character is expressed as described in figure：1st, rigid pipe；2nd, resistance coil；3rd, transfer wire；4th, sealed end；5th, inertia
Packed layer；6th, top layer sheath；61st, ground stud is grabbed；7th, signal output port；8th, junction block；9th, it is flexibly connected head；91st, pipe end connects
Joint；92nd, elastic packing connector；
70th, bottom plate；71st, bottom plate vertical rod；72nd, measurement mark；
80th, roadbed；81st, the first basic unit；82nd, the second basic unit；83rd, the 3rd basic unit；84th, road surface；85th, cave in place；86th, slight crack
Place；87th, intermediate isolating band；
D1, D2, D3 ... are respectively subgrade settlement detection zone.
Embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings to this reality
Be described in detail with new, the description of this part be only it is exemplary and explanatory, should not be to protection domain of the present utility model
There is any restriction effect.
As shown in fig. 4-5, concrete structure of the present utility model is：A kind of reference sense for subgrade settlement automatic Observation
Should band, it includes being used to be embedded in the rigid pipe 1 being mutually stitched together in base course, and each rigid pipe 1 passes through flexible connection
First 9 are stitched together；Sensing humiture change is respectively arranged with the rigid pipe 1, but not by the resistance coil of settlement influence
2, each mutually insulated of resistance coil 2, and the end of last rigid pipe 1 is individually transported by transfer wire 3；Institute
The two ends sealing of rigid pipe 1 is stated, one end is connected on signal output port 7 by transfer wire 3.
It is preferred that, the outer surface of the rigid pipe 1 is provided with top layer sheath 6.
It is preferred that, the top layer sheath 6 is made of flexible silica gel material, and top layer sheath 6 surface be evenly equipped with it is some
Ground stud 61 is grabbed, the thickness of layer of silica gel is 1cm ~ 2cm, the protrusion height for grabbing ground stud 61 is 1cm ~ 2cm.
It is preferred that, the rigid pipe 1 is made of stainless steel material.
It is preferred that, the subregion of resistance coil 2 set in the rigid pipe 1 is fixed on inside rigid pipe 1.
It is preferred that, the rigid pipe 1 is filled with the inertia packed layer 5 for fixed resistance coil 2.
It is preferred that, the inertia packed layer 5 is silica gel.
It is preferred that, it is provided with junction block 8 on the signal output port 7.
It is preferred that, the pipe end connector 91 and two that the flexible connection first 9 includes being used to be threadedly coupled with rigid pipe 1 is managed
The elastic packing connector 92 that end connector 91 links together.
When specifically used, the utility model device is embedded in as in the base course in Fig. 2, the whole basic unit of lateral direction penetrating,
Then line bank 7 is connected on resistivity-measuring devices, the situation of change of monitoring resistor, the utility model device is used as reference point
Use, be reference group；Simultaneously with the utility model is pre-buried side by side one group of flexible duct, its internal resistance structure and this practicality
New internal structure is identical, is experimental group for monitoring sedimentation situation.
As shown in fig. 4-5, the utility model device flexible pipe in soil layer is embedded in, the cross section of roadbed divide into, D1,
Several decanting zones of D2, D3 ..., the resistance coil 2 of experimental group realizes sedimentation with soil grass-root, occurs tensile deformation；And
The resistance coil 2 of reference group is only influenceed by humiture, and subgrade settlement is not acted on it.
If sub-surface is settled, the flexible duct in experimental group is attached in basic unit and settled therewith, then accordingly
Experimental group in the resistance of resistance coil 2 can be stretched, its resistance value can increase；And with the reference group in region, due to
There is the protection of rigid pipe 1, stretching change does not occur for its internal resistance coil 2, it arrives the effect of reference resistance value；Using reference
The data of group are modified to test results, and the resistance change of final experimental group can reflect subgrade settlement situation.
Above method is similar with the method in Fig. 1-Fig. 3：All it is to be carried out by the method for the pre-embedded device in basic unit
Feed back the sedimentation situation of basic unit in side；But the application continuously can be configured in the whole cross section of basic unit, basic unit is fed back
Sedimentation it is more accurate true, the sedimentation situation of a point can only be fed back in the prior art；As shown in Figure 4, by each floor road
If base cross section is divided into D1, D2, D3 ... several subgrade settlement detection zones, prior art（Shown in Fig. 1-Fig. 3）General feelings
Condition can only feed back the sedimentation situation of some middle sedimentation detection zone, and it can not accurately reflect the sedimentation feelings in whole cross section
Condition；And in the application as shown in figure 4, its resistance coil 2 run through whole basic unit cross section, can completely monitor the sedimentation of every layer of roadbed
Situation.
It is known that the resistance of wire is relevant with wire cross-section area, also have simultaneously with the humiture environment residing for wire
Close, the unique reference group design used in the utility model can pick the influence of non-settlement factors in experimental group test result
Remove, test more accurate.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property is included, so that process, method, article or equipment including a series of key elements not only include those key elements, and
And also including other key elements being not expressly set out, or also include for this process, method, article or equipment institute inherently
Key element.
Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Illustrate that being only intended to help understands method of the present utility model and its core concept.Described above is only of the present utility model preferred
Embodiment, it is noted that due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for this technology
For the those of ordinary skill in field, on the premise of the utility model principle is not departed from, some improvement, retouching can also be made
Or change, above-mentioned technical characteristic can also be by rights combined；These improve retouching, change or combined, or not
It is improved that the design of utility model and technical scheme are directly applied into other occasions, it is regarded as protection of the present utility model
Scope.
Claims (9)
1. a kind of reference induction band for subgrade settlement automatic Observation, it is characterised in that it includes being used to be embedded in base course
In the rigid pipe being mutually stitched together（1）, each rigid pipe（1）By being flexibly connected head（9）It is stitched together；The rigidity
Pipe（1）Inside it is separately provided for the change of sensing humiture but not by the resistance coil of settlement influence（2）, each resistance coil
（2）Mutually insulated, and individually pass through transfer wire（3）Transmit signals to last rigid pipe（1）End；It is described firm
Property pipe（1）Two ends sealing, one end passes through transfer wire（3）It is connected to signal output port（7）On.
2. a kind of reference induction band for subgrade settlement automatic Observation according to claim 1, it is characterised in that described
Rigid pipe（1）Outer surface be provided with top layer sheath（6）.
3. a kind of reference induction band for subgrade settlement automatic Observation according to claim 2, it is characterised in that described
Top layer sheath（6）It is made of flexible silica gel material, and top layer sheath（6）Surface be evenly equipped with it is some grab ground stud（61）, silicon
The thickness of glue-line is 1cm ~ 2cm, grabs ground stud（61）Protrusion height be 1cm ~ 2cm.
4. a kind of reference induction band for subgrade settlement automatic Observation according to claim 1, it is characterised in that described
Rigid pipe（1）It is made of stainless steel material.
5. a kind of reference induction band for subgrade settlement automatic Observation according to claim 1-4 any one, it is special
Levy and be, the rigid pipe（1）The resistance coil of interior setting（2）Subregion is fixed on rigid pipe（1）It is internal.
6. a kind of reference induction band for subgrade settlement automatic Observation according to claim 5, it is characterised in that described
Rigid pipe（1）Filled with for fixed resistance coil（2）Inertia packed layer（5）.
7. a kind of reference induction band for subgrade settlement automatic Observation according to claim 6, it is characterised in that described
Inertia packed layer（5）For silica gel.
8. a kind of reference induction band for subgrade settlement automatic Observation according to claim 5, it is characterised in that described
Signal output port（7）On be provided with junction block（8）.
9. a kind of reference induction band for subgrade settlement automatic Observation according to claim 1, it is characterised in that described
It is flexibly connected head（9）Including being used for and rigid pipe（1）The pipe end connector of threaded connection（91）And two pipe end connectors（91）
The elastic packing connector linked together（92）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621456618.XU CN206353020U (en) | 2016-12-28 | 2016-12-28 | A kind of reference induction band for subgrade settlement automatic Observation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621456618.XU CN206353020U (en) | 2016-12-28 | 2016-12-28 | A kind of reference induction band for subgrade settlement automatic Observation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206353020U true CN206353020U (en) | 2017-07-25 |
Family
ID=59348595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621456618.XU Expired - Fee Related CN206353020U (en) | 2016-12-28 | 2016-12-28 | A kind of reference induction band for subgrade settlement automatic Observation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206353020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607030A (en) * | 2017-09-22 | 2018-01-19 | 山东大学 | The monitoring of structures and its construction method of a kind of existing roadbed, slope stability |
-
2016
- 2016-12-28 CN CN201621456618.XU patent/CN206353020U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607030A (en) * | 2017-09-22 | 2018-01-19 | 山东大学 | The monitoring of structures and its construction method of a kind of existing roadbed, slope stability |
| CN107607030B (en) * | 2017-09-22 | 2024-01-23 | 山东大学 | Existing roadbed and slope stability monitoring structure and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206440269U (en) | One kind is used for subgrade settlement automatic monitoring system | |
| CN206189245U (en) | Highway bituminous pavement structure real -time supervision device | |
| Brandon et al. | Construction and instrumentation of geosynthetically stabilized secondary road test sections | |
| CN207610729U (en) | A kind of road surface structare layer humiture real-time monitoring device | |
| CN113418641B (en) | Road stress and strain comprehensive monitoring method based on FBG fiber bragg grating sensing technology | |
| CN207197500U (en) | A kind of distributed optical fiber sensing system of implanted sinking deformation monitoring | |
| CN206353020U (en) | A kind of reference induction band for subgrade settlement automatic Observation | |
| Liu et al. | Sensor-Based Structural Health Monitoring of Asphalt Pavements with Semi-Rigid Bases Combining Accelerated Pavement Testing and a Falling Weight Deflectometer Test | |
| CN105157999A (en) | Method for assessing pile integrity and lateral displacement based on distributed optical fiber sensing technology | |
| CN102213583A (en) | Low-modulus optical fiber sensing probe for testing internal stress of flexible road structure | |
| CN102095363B (en) | Multidimensional sensor for detecting dynamic response of bituminous pavement | |
| CN206736882U (en) | A kind of induction band for subgrade settlement automatic Observation | |
| CN218622163U (en) | Measuring device for simultaneously detecting foundation settlement and roadbed compression deformation | |
| CN104215365A (en) | Pavement structure layer internal shearing stress testing sensor and embedding technology and application thereof | |
| CN115127513A (en) | Long-distance pavement structure settlement monitoring method combining distributed optical fiber sensing technology and parameter inversion analysis | |
| CN104236761A (en) | Method for measuring force transmission coefficients based on concrete road flexure | |
| CN112523045A (en) | Acceleration array-based cement concrete pavement flatness monitoring structure and method | |
| CN209745467U (en) | Embedded system of stress strain gauge for pavement monitoring | |
| CN204988568U (en) | A device for measuring abutment pressure | |
| CN112097977A (en) | Fixing device and mounting method suitable for embedded sensor in cement concrete pavement | |
| CN203489874U (en) | Automatic monitoring system for subgrade settlement | |
| CN104457604B (en) | Asphalt pavement site radial strain test sensor based on optical fiber sensing technology | |
| CN206090372U (en) | A device for $monitoring road surface structural layer temperature | |
| CN203323712U (en) | Underground sensor network used for monitoring service life of expressway | |
| Dong et al. | Optimization of the installation techniques of distributed optic fiber sensors and measurement accuracy analysis for asphalt pavement based on finite element methods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170725 Termination date: 20201228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |