CN207335689U - It is a kind of to be suitable for having semi-rigid or rigid structural layer road foundation settlement monitoring sensor - Google Patents
It is a kind of to be suitable for having semi-rigid or rigid structural layer road foundation settlement monitoring sensor Download PDFInfo
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- CN207335689U CN207335689U CN201721170101.9U CN201721170101U CN207335689U CN 207335689 U CN207335689 U CN 207335689U CN 201721170101 U CN201721170101 U CN 201721170101U CN 207335689 U CN207335689 U CN 207335689U
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- rigid
- sleeve pipe
- draught line
- protection sleeve
- stent
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Abstract
The utility model provide it is a kind of be suitable for having semi-rigid or rigid structural layer road foundation settlement monitoring sensor, belong to road furniture technical field.After the bottom subgrade compaction of premonitoring position, sedimentation plate is placed.Protection sleeve pipe directly participates in rolling and not being crushed ensureing draught line in internal freely activity.Finished to the construction of semi-rigid or rigid structural layer, protection sleeve pipe is done into length processing, makes it concordant with curb.Displacement sensor for pull rope is fixed on stent limiting displacement partition plate side, and drawstring pulls out certain length and is connected with draught line in advance, and when use draws high sensor drawstring and draught line all in tight stress.Initial displacement data are recorded, displacement sensor for pull rope pulls out section and ensure that depression monitoring sensor can not only survey sedimentation in advance, but also can survey certain roadbed and bulge situation.The sensor low cost of the utility model, using simple, it is convenient to lay, and does not influence road surface normal construction, and core testing element is replaceable, and measuring accuracy is high.
Description
Technical field
The utility model belongs to roadway experiment equipment technical field, be related to be that one kind is suitable for having semi-rigid or rigid
The road foundation differential settlement monitoring sensor of structure sheaf.
Background technology
Road is the important component of traffic infrastructure, the Jun Zhan of highway in China construction investment in recent years China GDP's
2%-3%.But from the point of view of worldwide, the early disease problem of road is never solved at all.On the other hand, road surface
Repair the influence to road to become increasingly difficult to endure, and easily trigger pernicious traffic accident.For a long time, both at home and abroad
Asphalt Mixture Design is all based on empirical method, as people bear road structure the high volume of traffic, heavy load and long-life
Requirement be continuously increased, the assurance of road structure performance and its damage evolution law is increasingly taken seriously, domestic and international road work
The research work of journey circle has aggravated application of the mechanical analysis in road structure design.The root of the early disease problem of road structure
This solution needs the accurately handle to the combined factors such as pavement material, structure, hydrogeology, load and environment effect mechanical behavior
Hold, and it is one of crucial resistance of this work to lack effective on-the-spot test means to provide reference data.
The global failure of road structure, to cave in all be due to that roadbed caves in, caused by depression, this is also road structure shape
State directly affects the main mode of traffic safety.Due to roadbed road structure construction after the completion of concealment, road structure
Large scale, depression time of origin, position, degree the monitoring of the feature to roadbed settlement such as uncertainty propose it is many special
It is required that so that monitoring difficulty becomes larger, at present also without the more perfect commercial sensor of design.Existing depression monitoring system is usual
Inspection well is set by being excavated after pre-buried or construction, construction be caused necessarily to disturb, design complexity is cut and should not be safeguarded.
The reason for triggering roadbed settlement has very much, including depression, design caused by surface water infiltration or level of ground water fluctuation
The a variety of causes such as deficiency, construction quality problem are considered to soil property situation.Except the road that is built on mountain occur by landslide with
And the lower part cavity such as underground excavation, solution cavity situation can occur outside the depression of moment, most of roadbed settlement all gradually develops.
Therefore sensor is laid in roadbed and carries out long-term depression status monitoring, for grasping road structure safe condition, analysis depression
Occurrence cause and instruct roadbed design construction it is all significant.
For weak subgrade or weak foundation region, the design of highway or city expressway will usually be equipped with semi-rigid base
Layer, rigid base or rigid pavement structure are to reduce the damage risk that settlement of subgrade road pavement structure is brought.And half is firm
Property basic unit pavement structure is also the main pavement structure form of China's highway.
Utility model content
The purpose of this utility model is to be to provide a kind of to be suitable for having semi-rigid or rigid structural layer road foundation not
Uniform settlement monitors sensor.The utility model solve roadbed settlement monitoring be difficult to realize sensor lay to structure in itself and
Construction infection is small, high accuracy, high-survival rate, low cost, makes the problem of distribution method simple, high-durability.
The technical solution of the utility model：
It is a kind of to be suitable for having semi-rigid or rigid structural layer road foundation settlement monitoring sensor, including sedimentation plate 1, low
Ductility draught line 2, protection sleeve pipe 3, end waterproof jacket 4, flexible water connector sleeve 5, stent 6 and displacement sensor for pull rope 9；
Wherein, displacement sensor for pull rope 9 is displacement sensing element；
Low 2 one end of ductility draught line is fixedly connected on 1 middle part of sedimentation plate, and is protected and fixed by end waterproof jacket 4；It is low
Ductility draught line 2 is outer to be protected by protection sleeve pipe 3, its other end passes through the preformed hole of stent 6, be fixed on limiting displacement every
The drawstring of the displacement sensor for pull rope 9 of 8 opposite side of plate is connected；Protection sleeve pipe 3 is made of multistage, and centre is by flexible water connector sleeve
5 are connected；For 3 one end of protection sleeve pipe with the sedimentation embedment roadbed of plate 1, the semi-rigid or rigid structural layer of other end press-in is simultaneously suitable should be partly
Rigidity or rigid structural layer extend to lateral edges, are contacted with being fixed on semi-rigid or rigid structural layer lateral edges the stents 6；
Stent 6 is frame structure, it is equipped with waterproofing protection processing, to prevent water from entering the displacement sensor for pull rope 9 inside damaging；
The preformed hole and limiting displacement partition plate 8 passed through for low ductility draught line 2 is equipped with stent 6, displacement sensor for pull rope 9 is fixed
In 8 side of limiting displacement partition plate；
Plate is settled by the metal with certain area or highly elastic fiber reinforced plastics (FRP, Fiber Reinforced
Polymer) material is formed, and shape is unlimited；Low ductility draught line is with low ductility, wear-resisting fine workmanship's engineering plastics line, compiles
Knit line or wire；Protection sleeve pipe is engineering plastics, screw thread or armouring spool；End waterproof jacket and flexible water connector sleeve by
Soft engineering plastics or soft rubber material are formed；Stent is made of metal material, engineering plastics or resinous material.
Roadbed settlement monitoring sensor first has sedimentation plate, low ductility draught line, protection sleeve pipe, end waterproof when laying
The part such as set assembles.After treating that semi-rigid or rigid structural layer is constructed, then stent part is installed.In premonitoring position bottom
After subgrade compaction, sedimentation plate is placed.Protection sleeve pipe and the low ductility draught line that wraps be all the time during the construction of upper strata filler
Expose to filler upper strata.Protection sleeve pipe directly participates in rolling and not being crushed ensureing draught line in internal freely activity.To ensure
Low ductility draught line is given in main power transmission when settling plate with subgrade settlement, and protection sleeve pipe is spliced into by several sections, middle anti-with flexibility
Water connector sleeve connects, and sensor allows protection sleeve pipe stitching portion to be in both ends contact condition when embedded.To semi-rigid or rigid structure
Layer construction finishes, and protection sleeve pipe is done length processing, makes it concordant with curb.Stent is installed, wears low ductility draught line
Cross stent preformed hole.Displacement sensor for pull rope is fixed on stent limiting displacement partition plate side, and drawstring pulls out certain length in advance
And be connected with draught line, displacement sensor for pull rope drawstring and draught line are all in tight stress during use.Record initial bit
Data are moved, displacement sensor for pull rope pulls out section and ensure that depression monitoring sensor can not only survey sedimentation in advance, but also can survey certain
Roadbed bulges situation.
The low ductility draught line 2 sets two or more spare, only connection stay cord displacement sensings during use
Device, survival rate and durability are laid to improve sensor；
The displacement sensor for pull rope 9 is arranged on outside road structure, can also carry out calibration maintenance and necessity during use
Shi Genghuan, so as to ensure the measuring accuracy and durability of whole depression monitoring sensor；
The protection sleeve pipe 3 is not connected with sedimentation plate 1, and settle plate 1 when burying protection sleeve pipe 3 have one with sedimentation plate 1
, there is the space that measurement base course bulges in fixed gap, but settle between plate 1 and protection sleeve pipe 3 by 5 phase of flexible water connector sleeve
Even, protection sleeve pipe 3 is avoided to intake；
The low ductility draught line 2 is not subject to big pulling force in use, and draught line and protection sleeve pipe use
Thinner diameter is to reduce the influence to road structure state.
The beneficial effects of the utility model：1. it is convenient that sensor is laid, road surface normal construction can be directly participated in, it is not necessary to after
The operations such as phase drilling；2. displacement sensor for pull rope monitoring subgrade settlement displacement test is direct, low ductility draught line reduces
Displacement information passes the error in read procedure, ensure that measuring accuracy；3. sensor global design is simple, easily make, component, material
Expect low cost；4. displacement measurement element is placed in structural outer, carries out calibration maintenance and replace if necessary, so as to ensure whole depression
Monitor the measuring accuracy and durability of sensor；5. sensor can be laid in different depth, long-term depression monitoring data can be with
Combined with information such as weather, levels of ground water, analyze depression Evolution；6. the sensor need not set inspection well or reference stake
Deng the device for influencing road structure construction and using；7. this sensor is separated with adopting several points due to measuring point, it is easy to accomplish is adopted automatically
Number and the system integration, can still obtain the monitoring data of important analysis value under severe weather conditions.
Brief description of the drawings
Fig. 1 is suitable for semi-rigid or rigid structural layer road foundation differential settlement monitoring sensor critical piece
Structure diagram.
In figure：1 sedimentation plate；2 low ductility draught lines；3 protection sleeve pipes；4 end waterproof jackets；
5 flexible water connector sleeves；6 stents；7 preformed holes；8 limiting displacement partition plates；
9 displacement sensor for pull rope；10 data acquisition equipments.
Embodiment
Specific embodiment of the present utility model is described in detail with reference to technical solution and attached drawing.
As shown in the figure, the main transmission sedimentation plate 1, low ductility draught line 2, protection sleeve pipe 3, end waterproof jacket 4, soft of including
Property waterproof connector sleeve 5, stent 6, preformed hole 7, limiting displacement partition plate 8, displacement sensor for pull rope 9, data acquisition equipment 10.
Low ductility draught line one end be fixedly connected sedimentation plate in the middle part of, the other end be inserted in respectively in order end waterproof jacket,
Protection sleeve pipe and flexible water connector sleeve.Protection sleeve pipe one end is embedded in roadbed with sedimentation plate when the sensor is laid, another
End is pressed into semi-rigid or rigid structural layer with construction and extends to lateral edges, end and the stent for being fixed on lateral edges along the layer
Contact.Protection sleeve pipe is made of multistage, and centre is connected by flexible water connector sleeve.Stent is equipped with to be reserved for what draught line passed through
Hole and limiting displacement partition plate, low ductility draught line stretches out road structure body along protection sleeve pipe, through the preformed hole of stent
The drawstring of displacement sensor for pull rope with being fixed on limiting displacement partition plate opposite side is connected.Stent have waterproofing protection processing to prevent
Sealing is placed in the displacement sensor for pull rope of inside into damage.
Roadbed settlement monitoring sensor first has sedimentation plate, low ductility draught line, protection sleeve pipe, end waterproof when laying
The part such as set assembles.After treating that semi-rigid or rigid structural layer is constructed, then stent part is installed.In premonitoring position bottom
After subgrade compaction, place sedimentation plate, settle plate on can pre cap upper strata want it is inbuilt soil or rubble class material.Premonitoring location
The low ductility draught line for wrapping protection sleeve pipe together with it during the filler construction of upper strata is put all the time to expose to filler upper strata.Except
By outside the semi-rigid or rigid structural layer being pressed into, protection sleeve pipe keeps vertical position as far as possible after filler, to reduce protection
Casing length.Protection sleeve pipe directly participates in rolling and not being crushed ensureing draught line in internal freely activity.To ensure to settle plate
Low ductility draught line is given in main power transmission during with subgrade settlement, and protection sleeve pipe is spliced into by several sections, and centre is connected with flexible water
Set connection, sensor allow protection sleeve pipe stitching portion to be in both ends contact condition when embedded, opposite to have during deuterogenesis's depression
The space of displacement.When semi-rigid or rigid structural layer is constructed, protection sleeve pipe is directly pressed into the layer.To semi-rigid or rigidity knot
The construction of structure layer finishes, and protection sleeve pipe is done length processing, makes it concordant with curb.Stent is installed, makes low ductility draught line
Through stent preformed hole.Displacement sensor for pull rope is fixed on stent limiting displacement partition plate side, and drawstring pulls out certain long in advance
Spend and be connected with draught line, displacement sensor for pull rope drawstring and draught line are all in tight stress when sensor uses.Note
Initial displacement data are recorded, displacement sensor for pull rope pulls out section and ensure that depression monitoring sensor can not only survey sedimentation in advance, but also can
Bulged situation with surveying certain roadbed.
The roadbed settlement monitors sensor in sedimentation plate and protection sleeve pipe junction, protection sleeve pipe truncated position and stent
Waterproofing protection measure is used, ensures not intake during stent use, does not intake inside protection sleeve pipe and led with reducing as far as possible
The aging of lead and do not increase its frictional force with protection sleeve pipe inner wall.Low ductility draught line can be carried out before sensor use
Ductility is demarcated and ageing properties test, and necessary error correction is carried out with the data surveyed during use to sensor.Sensing
Device is in use, subgrade settlement drives the sedimentation plate for being embedded in this layer to settle.The movement for settling plate drives draught line generation etc.
The movement of distance, due to the low ductility of draught line, the drawstring of the directly dynamic stretching displacement sensor for pull rope of the other end to it is identical away from
From, therefore the drawstring shift value that measures of displacement sensor for pull rope is regarded as the sedimentation value of sedimentation plate.
Claims (8)
1. a kind of be suitable for having semi-rigid or rigid structural layer road foundation settlement monitoring sensor, it is characterised in that described
Road foundation settlement monitoring sensor include sedimentation plate (1), low ductility draught line (2), protection sleeve pipe (3), end waterproof
Cover (4), flexible water connector sleeve (5), stent (6) and displacement sensor for pull rope (9)；Wherein, displacement sensor for pull rope (9) is
Displacement sensing element；
Low ductility draught line (2) one end is fixedly connected in the middle part of sedimentation plate (1), and is protected and fixed by end waterproof jacket (4)；
Low ductility draught line (2) is protected by protection sleeve pipe (3) outside, its other end passes through the preformed hole of stent (6), with being fixed on limit
The drawstring of the displacement sensor for pull rope (9) of displacement partition plate (8) opposite side processed is connected；Protection sleeve pipe (3) is made of multistage, it is middle by
Flexible water connector sleeve (5) is connected；Protection sleeve pipe (3) one end with sedimentation plate (1) embedment roadbed in, the other end press-in it is semi-rigid or
Rigid structural layer simultaneously extends to lateral edges along the semi-rigid or rigid structural layer, with being fixed on the semi-rigid or rigid structural layer side
Stent (6) contact at edge；Stent (6) is frame structure, it is equipped with waterproofing protection processing, to prevent water from entering in damage
The displacement sensor for pull rope (9) in portion；The preformed hole and agretope passed through for low ductility draught line (2) is equipped with stent (6)
Partition plate (8) is moved, displacement sensor for pull rope (9) is fixed on limiting displacement partition plate (8) side.
2. road foundation settlement monitoring sensor according to claim 1, it is characterised in that the protection sleeve pipe (3)
Be connected with sedimentation plate (1), and settle plate (1) it is embedded when, protection sleeve pipe (3) leaves gap with settling plate (1), it is allowed to there is survey
The space that amount base course bulges, is connected by flexible water connector sleeve (5) between sedimentation plate (1) and protection sleeve pipe (3), avoids protecting
Casing (3) is intake.
3. road foundation settlement monitoring sensor according to claim 1 or 2, it is characterised in that the low ductility
Draught line (2) sets more than two, an only connection stay cord displacement sensor (9) during use.
4. road foundation settlement monitoring sensor according to claim 1 or 2, it is characterised in that the drawstring displacement
Sensor (9) is arranged on outside road structure.
5. road foundation settlement monitoring sensor according to claim 3, it is characterised in that the drawstring displacement sensing
Device (9) is arranged on outside road structure.
6. the road foundation settlement monitoring sensor according to claim 1,2 or 5, it is characterised in that the sedimentation plate
(1) it is made of metal or highly elastic fiber reinforced plastics material, shape is unlimited；The low ductility draught line (2) be with
Low ductility, wear-resisting plastic cord, litzendraht wire or wire；The protection sleeve pipe (3) is plastics, screw thread or armouring spool；
The end waterproof jacket (4) and flexible water connector sleeve (5) are formed for plastics or soft rubber material；The stent (6)
Formed for metal material, engineering plastics or resinous material.
7. road foundation settlement monitoring sensor according to claim 3, it is characterised in that the sedimentation plate (1) by
Metal or highly elastic fiber reinforced plastics material are formed, and shape is unlimited；The low ductility draught line (2) is with low extension
Property, wear-resisting plastic cord, litzendraht wire or wire；The protection sleeve pipe (3) is plastics, screw thread or armouring spool；Described
End waterproof jacket (4) and flexible water connector sleeve (5) are formed for plastics or soft rubber material；The stent (6) is metal
Material, engineering plastics or resinous material are formed.
8. road foundation settlement monitoring sensor according to claim 4, it is characterised in that the sedimentation plate (1) by
Metal or highly elastic fiber reinforced plastics material are formed, and shape is unlimited；The low ductility draught line (2) is with low extension
Property, wear-resisting plastic cord, litzendraht wire or wire；The protection sleeve pipe (3) is plastics, screw thread or armouring spool；Described
End waterproof jacket (4) and flexible water connector sleeve (5) are formed for plastics or soft rubber material；The stent (6) is metal
Material, engineering plastics or resinous material are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721170101.9U CN207335689U (en) | 2017-09-13 | 2017-09-13 | It is a kind of to be suitable for having semi-rigid or rigid structural layer road foundation settlement monitoring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721170101.9U CN207335689U (en) | 2017-09-13 | 2017-09-13 | It is a kind of to be suitable for having semi-rigid or rigid structural layer road foundation settlement monitoring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207335689U true CN207335689U (en) | 2018-05-08 |
Family
ID=62368618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721170101.9U Withdrawn - After Issue CN207335689U (en) | 2017-09-13 | 2017-09-13 | It is a kind of to be suitable for having semi-rigid or rigid structural layer road foundation settlement monitoring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207335689U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462211A (en) * | 2017-09-13 | 2017-12-12 | 大连理工大学 | A kind of road foundation settlement monitoring sensor for being suitable for having half/rigid structural layer |
| CN110849323A (en) * | 2019-12-12 | 2020-02-28 | 中国电建集团成都勘测设计研究院有限公司 | Telescopic settling tube, and settling deformation monitoring system and method |
| CN111623747A (en) * | 2020-04-22 | 2020-09-04 | 山东交通学院 | Ground settlement monitoring system and monitoring method thereof |
-
2017
- 2017-09-13 CN CN201721170101.9U patent/CN207335689U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462211A (en) * | 2017-09-13 | 2017-12-12 | 大连理工大学 | A kind of road foundation settlement monitoring sensor for being suitable for having half/rigid structural layer |
| CN107462211B (en) * | 2017-09-13 | 2023-05-05 | 大连理工大学 | Road subgrade settlement monitoring sensor suitable for semi/rigid structural layer |
| CN110849323A (en) * | 2019-12-12 | 2020-02-28 | 中国电建集团成都勘测设计研究院有限公司 | Telescopic settling tube, and settling deformation monitoring system and method |
| CN111623747A (en) * | 2020-04-22 | 2020-09-04 | 山东交通学院 | Ground settlement monitoring system and monitoring method thereof |
| CN111623747B (en) * | 2020-04-22 | 2022-05-10 | 山东交通学院 | Ground settlement monitoring system and monitoring method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180508 Effective date of abandoning: 20230505 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180508 Effective date of abandoning: 20230505 |