CN109297461A - A kind of monitoring device and application method of the sedimentation of collapsible loess high-filled embankment - Google Patents
A kind of monitoring device and application method of the sedimentation of collapsible loess high-filled embankment Download PDFInfo
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- CN109297461A CN109297461A CN201811078261.XA CN201811078261A CN109297461A CN 109297461 A CN109297461 A CN 109297461A CN 201811078261 A CN201811078261 A CN 201811078261A CN 109297461 A CN109297461 A CN 109297461A
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- Prior art keywords
- settlement observation
- sedimentation
- plate
- elevation
- observation bar
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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
Abstract
The invention discloses the monitoring devices and application method of a kind of collapsible loess high-filled embankment sedimentation in civil engineering in relation to subgrade engineering field, including settlement observation bar, sedimentation plate, PVC casing, displacement monitoring stake.It settles plate to use with a thickness of 1cm, section is the square steel plate of 50 × 50cm, and settlement observation bar is made of extensible steel pipe, and is welded into an entirety, housing pvc pipe with sedimentation plate.One settlement observation point is set every 50m in high filling section position of center line, displacement monitoring stake is arranged in settlement observation point two sides and corresponds to outside plain stage of slope, banket and gutter；Plate will be settled to be placed in the heatable adobe sleeping platform that monitoring place has been dug；PVC casing is vertically packed into settlement observation bar；Settlement observation bar elevation is observed with the level continuous a few days, determines initial elevation；The coordinate of each displacement monitoring stake is monitored using total station；Periodic measurement goes out the elevation for settling the settlement observation bar on plate in the construction process, and the elevation changing value on settlement observation bar top is settling amount.
Description
Technical field
The present invention relates to the monitoring devices and application method of a kind of sedimentation of collapsible loess high-filled embankment, especially for just
In the monitoring that the collapsible loess highway high-filled embankment of construction settles.
Background technique
With the continuous development of central and west regions economy, to meet people in trip and substance, the needs of the exchange of information,
Development in terms of road traffic increasingly seems important, the Collapsible Loess District especially in Midwest.Although China is at this
Aspect has had many decades to obtain construction experiences, but due to the complexity, inhomogeneities, uncertain factor of collapsible loess itself
Compare more, is difficult to accurately react the actual conditions of local ground with geological exploration data in addition, so high-filled embankment destroys
The problem of still occur often.It is mainly manifested in subgrade settlement, road surface depression, a variety of quality diseases such as bumping at bridge-head, direct shadow
Ring social benefit brought by the personal safety and highway construction to people.And face the gully of Midwest Collapsible Loess District
What fluctuating, the superiority that high-filled embankment has the structures such as bridge cannot replace again, therefore reinforcement settled high-filled embankment
Monitoring, improving its stability has important engineering significance.
The settlement monitoring of high-filled embankment can make complexity in all multiple-projects, inhomogeneities, probabilistic factor by
Gradually make clear.Recessive problem present in embankment can be timely found in the construction process, effectively avoided highway and built
At the generation of rear quality disease, the expense of Renovation after highway is open to traffic is reduced.In addition to this, moreover it is possible to preferably ensure passing
The safety of vehicle and pedestrian.Therefore, the settlement monitoring that high-filled embankment is carried out in highway construction process is necessary.
Summary of the invention
In order to overcome the shortcomings of the prior art to the processing of collapsible loess subgrade uneven subsidence, the present invention provides one
The monitoring device and application method of kind collapsible loess high-filled embankment sedimentation.Pass through Collapsible Loess District in highway communication line
When the mountain valley area of hypsography injustice, often there is the variability of a large amount of prospective design and complexity, embankment fill material to grind
The many factors such as the limitation of construction are pressed, this will cause roadbed subsidence larger, so as to cause road surface depression and fracture.Solution of the present invention
The relevant issues determined in dynamic construction process in relation to engineering construction safety and subgrade stability.
The technical solution adopted by the present invention to solve the technical problems is: a kind of collapsible loess high-filled embankment sedimentation
Monitoring device and application method, including settlement observation bar, sedimentation plate, PVC casing, cuff, displacement monitoring stake.Plate is settled using thick
Degree is 1cm, and section is the square steel plate of 50cm × 50cm, and settlement observation bar is made of extensible steel pipe, observation bar and observation bar
Between connected with cuff, housing pvc pipe, and by settlement observation bar be welded on sedimentation plate on.Displacement monitoring stake uses a length of 0.8m,
Section is the C15 concrete square pile of 0.2m × 0.2m.Sedimentation plate should avoid the pipeline locations such as communication, water channel, settle plate and displacement
The arrangement of monitoring stake can be appropriately adjusted according to actual landform and condition of construction.
One settlement observation point is set every 50m in high filling section position of center line, displacement monitoring stake is arranged in sedimentation
Observation point two sides correspond to outside plain stage of slope, banket and gutter；Sedimentation plate is placed on the heatable adobe sleeping platform bottom dug monitoring point, with level
Ruler corrects plate face level, then backfill leveling compacting；PVC casing is vertically packed into settlement observation bar, end is located on native face；With
The level continuous a few days observes settlement observation bar elevation, determines initial elevation；The seat of each displacement monitoring stake is monitored using total station
Mark, it is ensured that the accuracy of settlement observation bar position；Periodic measurement goes out to settle the elevation of settlement observation bar on plate in the construction process,
The elevation changing value on settlement observation bar top is settling amount.
The invention has the advantages that a kind of monitoring device and application method of the sedimentation of collapsible loess high-filled embankment,
When highway communication line passes through the Collapsible Loess District especially mountain valley area of hypsography injustice, to collapsibility in construction
The differential settlement of loess makes effective monitoring, so that problem can be found in time, to guarantee the progress of normal construction
And safety, and after being open to traffic road quality, traffic safety problem caused by effectively avoiding because of collapsible loess differential settlement,
And its brought loss.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is observation point section arrangement schematic diagram of the present invention；
Fig. 2 is observation point plan view of the present invention；
Fig. 3 is present invention sedimentation plate structure schematic diagram；
1. settlement observation bar in figure, 2. cuffs, 3. sedimentation plates, 4. displacement monitoring stakes, 5. gutters, 6. reinforce welding bar,
7. pipe cap.
Specific embodiment
[embodiment]
The technical solution adopted by the present invention to solve the technical problems is: a kind of monitoring of collapsible loess high-filled embankment sedimentation
Device and application method, including settlement observation bar (1), sedimentation plate (3), cuff (2), displacement monitoring stake (4).Referring to Fig. 3, sedimentation
For plate (3) using with a thickness of 1cm, section is the square steel plate of 50cm × 50cm, and settlement observation bar (1) is made of extensible steel pipe,
It observes between bar and observation bar and being connected with cuff (2), and be welded into an entirety, housing pvc pipe with sedimentation plate (3).Displacement prison
Pile (4) uses a length of 0.8m, and section is the C15 concrete square pile of 0.2 × 0.2m.Sedimentation plate (3) should avoid communication, water channel etc.
Pipeline location, the arrangement for settling plate (3) and displacement monitoring stake (4) can be appropriately adjusted according to actual landform and condition of construction.
Referring to Figures 1 and 2, one settlement observation point, displacement monitoring are set every 50m in high filling section position of center line
Stake (4) is arranged in settlement observation point two sides and corresponds to plain stage of slope, banket and gutter (5) outside；Sedimentation plate (3) is placed on monitoring point
The heatable adobe sleeping platform bottom dug, it is horizontal with horizontal ruler correction plate face, then backfill leveling compacting；PVC casing is vertically packed into sedimentation to see
Measuring staff (1), end are located on native face；Settlement observation bar (1) elevation is observed with the level continuous a few days, determines initial elevation；It adopts
The coordinate of each displacement monitoring stake (4) is monitored with total station, it is ensured that the accuracy of settlement observation bar (1) position；In the construction process
Periodic measurement goes out the elevation for settling the settlement observation bar (1) on plate (3), and the elevation changing value on settlement observation bar (1) top is
Settling amount.
With the increase of the depth of fill, settlement observation bar (1) can not disconnecting it is high, when adapter tube, observes the pipe of adapter tube front and back simultaneously
Crest level is referred to as " under rise ", and " above rising ", settlement observation generally uses levelling method, i.e. roadbed
It fills and the settlement observation precision of precompressed phase is not less than national fourth-order leveling measurement request, strict implement country water is answered in observation work
Locating tab assembly specification makes observation condition identical as far as possible, accomplishes five settled principles.
It, can be according to geologic information and empirically determined Slab culvert, in Slab culvert in monitoring implementation process
It can quickly banket in range, strictly should control speed of banketing according to monitoring materials when the depth of fill oversteps the extreme limit the depth of fill
Rate.Each high roadbed measuring frequency section is no less than 3, and same measuring frequency section observation point is laid on same root axis, construction period
Observation in every 3 days is primary, and in the time of path link Chinese herbaceous peony after construction, observation in every 14 days is primary, road be open to traffic a year and a half when
Interior each moon observation is primary.
Claims (2)
1. a kind of monitoring device of collapsible loess high-filled embankment sedimentation, including settlement observation bar (1), sedimentation plate (3), cuff
(2), displacement monitoring stake (4).
2. a kind of monitoring method of collapsible loess high-filled embankment sedimentation, which is characterized in that in high filling section center line position
It sets and one settlement observation point is set every 50m, displacement monitoring stake (4) is arranged in settlement observation point two sides and corresponds to plain stage of slope, shield
Ramp and gutter (5) are outside；Sedimentation plate (3) is placed on the heatable adobe sleeping platform bottom dug monitoring point, it is horizontal with horizontal ruler correction plate face, then return
Leveling of banketing is compacted；PVC casing is vertically packed into settlement observation bar (1), end is located on native face；It is seen with the level continuous a few days
Settlement observation bar (1) elevation is surveyed, determines initial elevation；The coordinate of each displacement monitoring stake (4) is monitored using total station, it is ensured that sedimentation
Observe the accuracy of bar (1) position；Periodic measurement goes out the elevation for settling the settlement observation bar (1) on plate (3) in the construction process,
The elevation changing value on settlement observation bar (1) top is settling amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078261.XA CN109297461A (en) | 2018-09-17 | 2018-09-17 | A kind of monitoring device and application method of the sedimentation of collapsible loess high-filled embankment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078261.XA CN109297461A (en) | 2018-09-17 | 2018-09-17 | A kind of monitoring device and application method of the sedimentation of collapsible loess high-filled embankment |
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| Publication Number | Publication Date |
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| CN109297461A true CN109297461A (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811078261.XA Pending CN109297461A (en) | 2018-09-17 | 2018-09-17 | A kind of monitoring device and application method of the sedimentation of collapsible loess high-filled embankment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016906A (en) * | 2019-04-29 | 2019-07-16 | 中交上海航道勘察设计研究院有限公司 | A kind of sedimentation plate fixing means of the barged-in fill sedimentation of observation on the water |
| CN110670568A (en) * | 2019-09-09 | 2020-01-10 | 中国二十冶集团有限公司 | Method for observing vertical deformation of roadbed filling in soft foundation area and settlement plate |
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| CN202329617U (en) * | 2011-11-15 | 2012-07-11 | 成都市市政工程（集团）有限责任公司 | Physical settlement gauge for measuring gap value between rigid pavement and subgrade |
| CN203132533U (en) * | 2013-03-29 | 2013-08-14 | 中铁十二局集团有限公司 | Roadbed settlement deformation observation device |
| CN103994753A (en) * | 2014-06-13 | 2014-08-20 | 太原理工大学 | Layered settlement device and layered settlement measuring method for loess filler high fill embankment |
| CN204479060U (en) * | 2015-01-07 | 2015-07-15 | 天津二十冶建设有限公司 | A kind of subgrade stability recording geometry |
| US20150197895A1 (en) * | 2012-07-17 | 2015-07-16 | Council Of Scientific & Industrial Research | Stepwise repeated destabilization and stabilization of highly collapsible soil mass by 'soil nailing technique' used for construction of railway/road underpass |
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2018
- 2018-09-17 CN CN201811078261.XA patent/CN109297461A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202329617U (en) * | 2011-11-15 | 2012-07-11 | 成都市市政工程（集团）有限责任公司 | Physical settlement gauge for measuring gap value between rigid pavement and subgrade |
| US20150197895A1 (en) * | 2012-07-17 | 2015-07-16 | Council Of Scientific & Industrial Research | Stepwise repeated destabilization and stabilization of highly collapsible soil mass by 'soil nailing technique' used for construction of railway/road underpass |
| CN203132533U (en) * | 2013-03-29 | 2013-08-14 | 中铁十二局集团有限公司 | Roadbed settlement deformation observation device |
| CN103994753A (en) * | 2014-06-13 | 2014-08-20 | 太原理工大学 | Layered settlement device and layered settlement measuring method for loess filler high fill embankment |
| CN204479060U (en) * | 2015-01-07 | 2015-07-15 | 天津二十冶建设有限公司 | A kind of subgrade stability recording geometry |
Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016906A (en) * | 2019-04-29 | 2019-07-16 | 中交上海航道勘察设计研究院有限公司 | A kind of sedimentation plate fixing means of the barged-in fill sedimentation of observation on the water |
| CN110670568A (en) * | 2019-09-09 | 2020-01-10 | 中国二十冶集团有限公司 | Method for observing vertical deformation of roadbed filling in soft foundation area and settlement plate |
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