CN104316026A - Cross-cutting instrument sensor traction method in road broadening subgrade - Google Patents
Cross-cutting instrument sensor traction method in road broadening subgrade Download PDFInfo
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- CN104316026A CN104316026A CN201410582108.6A CN201410582108A CN104316026A CN 104316026 A CN104316026 A CN 104316026A CN 201410582108 A CN201410582108 A CN 201410582108A CN 104316026 A CN104316026 A CN 104316026A
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- cross
- sectional
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- pipe
- subgrade
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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 a cross-cutting instrument sensor traction method in a road broadening subgrade. The method comprises the following steps: firstly embedding an improved cross-cutting pipe according to the width of the broadening subgrade, mounting a fixed pulley at one side in the cross-cutting pipe close to an old subgrade; binding a cross-cutting pipe sensor on a dragging line of the cross-cutting pipe, drawing the dragging line, dragging the sensor in the cross-cutting pipe to one side close to old road subgrade; finally dragging a data transmission line in the sensor, dragging out the sensor in the cross-cutting pipe to an opening of the cross-cutting pipe, testing once per 50cm and recoding the result through the cross-cutting instrument; removing an adhesive tape for binding the dragging line and the sensor after measuring the data, buckling end covers on two ends of the cross-cutting pipe to finish once measurement; repeating above steps for several times. The difficulty that the cross-cutting pipe cannot be dragged into the pipe to test in the road broadening subgrade is avoided, and the technology support is provided for controlling subgrade settlement deformation in the road reconstruction and extension project.
Description
Technical field
The invention belongs to technical field of civil engineering, be specifically related to the cross-sectional instrument sensor traction method in a kind of highway widening roadbed.
Background technology
Cross-sectional instrument belongs to a kind of instrument in the Settlement Observation, sensor and cross-sectional Guan Ze belong to a kind of support equipment in cross-sectional instrument, wherein, cross-sectional pipe is the bottom being embedded in roadbed according to certain method, the cross-sectional pipe used in prior art is the pvc pipe of external diameter 7.0cm, pipe thickness is 0.5cm, inside tube wall, symmetrical four guide grooves, for the slip of sensor guide wheel, wherein the width of guide groove is 0.6cm, and the degree of depth of groove is 0.3cm, and the cross-sectional pipe schematic diagram of prior art as shown in Figure 1.
The sensor of cross-sectional instrument, for testing the settling data of cross-sectional pipe, wherein, the length of sensor is 77.6cm, and respectively there is one group of slide guide wheel the rear and front end of sensor, and be of a size of φ 26 × 776mm, the thickness of guide wheel is 0.2cm, and guide wheel spacing is 50cm.Data in the Settlement Observation are that sensor is slided by the guide groove in cross-sectional pipe and carries out testing, and the Settlement Observation when observation data can be highway subgrade and highway widening subgrade construction provides technical support.
Cross-sectional instrument is in actual application, when especially applying in highway widening roadbed, owing to only testing the sedimentation and deformation of new widening subgrade, namely cross-sectional pipe is after burying underground, the mouth of pipe near Subgrade of old road side is closed, how this draws making the sensor of cross-sectional instrument in cross-sectional pipe, and then carries out test and bring difficulty.
In highway subgrade build process in the past, owing to being Xin Xiuluji, only there is the traction method of a kind of cross-sectional instrument sensor in cross-sectional pipe, that is: when roadbed construction, cross-sectional pipe has been buried underground in the bottom of roadbed, two ports of cross-sectional pipe are not all closed, and place the draught line of one and the same length of cross-sectional pipe in advance, and the port of cross-sectional pipe both sides expose outside roadbed in cross-sectional pipe; During test, wire is connected to one end of sensor, pulls draught line at the other end of cross-sectional pipe, and then band dynamic sensor sliding in cross-sectional pipe, and every 50cm test and record one secondary data, thus reach the object of test subgrade settlement distortion.
But, in widening, when testing the sedimentation and deformation of widening subgrade, phase is tamped by subgrade soils after construction in one end (near side, old road) of cross-sectional pipe, for what close, when carrying out cross-sectional instrument test subgrade settlement distortion, draught line cannot be pulled to test in one end of cross-sectional pipe, this cannot newly filling out in roadbed in highway widening apply causing cross-sectional instrument.
Therefore, design a kind of cross-sectional instrument sensor traction method be suitable in the cross-sectional pipe of highway widening roadbed, for the range of application of cross-sectional instrument in highway reconstruction and expansion engineering and use value, there is important practical engineering value.
Summary of the invention
The object of the present invention is to provide the cross-sectional instrument sensor traction method in a kind of highway widening roadbed, can in highway widening roadbed, by the cross-sectional pipe after improvement, successfully carry out traction and the test of sensor, thus the subgrade settlement deformation data obtained in widening subgrade width range and Changing Pattern.
For achieving the above object, the technical solution used in the present invention is as follows:
A cross-sectional instrument sensor traction method in highway widening roadbed, its special character is, comprises the following steps:
Step one, according to the width of widening subgrade, get out the cross-sectional pipe that length is consistent with width of subgrade, offer the bolt hole of about one group correspondence at cross-sectional pipe mouth of pipe 5cm ~ 10cm place of the close Subgrade of old road side of distance and install one to wearing bolt, the two ends of wearing bolt are fixed by the tube wall of nut and cross-sectional pipe, near bolt hole, smears glass cement for water-tight simultaneously;
Step 2, installing a fixed pulley on the centre position of wearing bolt, before having buried cross-sectional pipe underground, fixed pulley installs draught line, draught line walks around fixed pulley and port outside the other end of cross-sectional pipe, forms loop;
Step 3, bury the cross-sectional pipe after above-mentioned steps improvement underground, by the sensor bind of cross-sectional instrument on draught line, by pulling draught line, by the sensor traction in cross-sectional pipe to close Subgrade of old road side, and carry out the DATA REASONING in cross-sectional pipe by cross-sectional instrument; Pull the data line of sensor again, the sensor in cross-sectional pipe is drawn out to the cross-sectional pipe mouth of pipe, and test once by the every 50cm of cross-sectional instrument and record result;
Step 4, after measuring data, the adhesive tape of dismantling for bind draught line and sensor, and be buckled on the outside port of cross-sectional pipe by port cap, namely complete one-shot measurement;
Step 5, repeats step one to step 4, takes multiple measurements.
Further, in step 3, sensor is passed through adhesive tape bind on draught line.
Further, described draught line is the steel wire of outsourcing caulking gum layer.
Further, the described diameter to wearing bolt is 0.8cm ~ 1.4cm, is preferably 1.0cm.
Further, the pulley groove of described fixed pulley, with the enclosing cover closed, prevents draught line from coming off from pulley groove.
Further, the diameter of described fixed pulley is 2.5 ~ 5cm, is preferably 3.0cm.
Cross-sectional instrument sensor traction method in the cross-sectional pipe of highway widening roadbed provided by the invention, can avoid cross-sectional tube sensor traction cannot being carried out testing the difficulty brought to pipe in highway widening roadbed, the present invention can in highway widening roadbed, by the cross-sectional pipe after improvement, successfully carry out traction and the test of sensor, thus the subgrade settlement deformation data obtained in widening subgrade width range and Changing Pattern.
Accompanying drawing explanation
Fig. 1 is the cross-sectional tubular construction schematic diagram used in prior art;
Fig. 2 is the front view (FV) that the present invention carries out improvement used cross-sectional pipe when cross-sectional instrument sensor draws;
Fig. 3 is the planimetric map that the present invention carries out improvement used cross-sectional pipe when cross-sectional instrument sensor draws;
Wherein, the cross-sectional pipe of 1-, 2-to wearing bolt, 3-nut, 4-fixed pulley, 5-draught line, 6-port cap, 7-sensor.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in detail.
The present invention has used the cross-sectional pipe carrying out improving when carrying out the traction of cross-sectional instrument sensor, as shown in Figures 2 and 3, and the cross-sectional instrument sensor traction method in the highway widening roadbed of the embodiment of the present invention, carries out in accordance with the following steps:
Step one, according to the width of widening subgrade, get out the cross-sectional pipe 1 that length is consistent with width of subgrade, offer the bolt hole of about one group correspondence at cross-sectional pipe mouth of pipe 5cm ~ 10cm (preferred 10cm) place of the close Subgrade of old road side of distance and install one to wearing bolt 2, the two ends of wearing bolt 2 are fixed by the tube wall of nut 3 with cross-sectional pipe 1, near bolt hole, smear glass cement for water-tight simultaneously, diameter to wearing bolt 2 used is 0.8cm ~ 1.4cm, is preferably 1.0cm;
Step 2, to on the centre position of wearing bolt 2, a fixed pulley 4 is being installed, before having buried cross-sectional pipe 1 underground, fixed pulley 4 is installed draught line 5, draught line 5 walks around fixed pulley 4 and port outside the other end of cross-sectional pipe, form loop, draught line 5 used is the steel wire of outsourcing caulking gum layer, and the pulley groove of fixed pulley 4 used, with the enclosing cover closed, prevents draught line 5 from coming off from pulley groove, the diameter of fixed pulley 4 is 2.5 ~ 5cm, is preferably 3.0cm;
Step 3, buries the cross-sectional pipe 1 after above-mentioned steps improvement underground, the sensor 7 of cross-sectional instrument being passed through adhesive tape bind on draught line 5, draught line 5 connecting the sensor 7 of cross-sectional instrument, for testing the settling data of cross-sectional pipe.By pulling draught line, the sensor 7 in cross-sectional pipe being drawn to close Subgrade of old road side, and carrying out the DATA REASONING in cross-sectional pipe by cross-sectional instrument; Pull the data line of sensor again, the sensor in cross-sectional pipe is drawn out to the cross-sectional pipe mouth of pipe, and test once by the every 50cm of cross-sectional instrument and record result;
Step 4, after measuring data, the adhesive tape of dismantling for bind draught line and sensor, and be buckled on the outside port of cross-sectional pipe by port cap 6, namely complete one-shot measurement;
Step 5, repeats step one to step 4, takes multiple measurements.
Cross-sectional instrument sensor traction method in the cross-sectional pipe of highway widening roadbed provided by the invention, installs wearing bolt and fixed pulley is simple and reliable in cross-sectional pipe, with low cost, easy to assembly, cross-sectional pipe is in the past buried underground in process, be two port exposures outside roadbed side slope, only need in cross-sectional pipe, place a draught line in advance and can complete traction task smoothly, and in highway widening roadbed, cross-sectional pipe only has a port exposure outside roadbed side slope, another port is enclosed in the middle of roadbed, thus cause and cannot implement according to sensor traction method in the past, the present invention adopts wearing bolt cross-sectional pipe, the draught line Curve guide impeller of fixed pulley and formation loop, and use adhesive tape by sensor bind on draught line, draught line and then band dynamic sensor is pulled to enter method in cross-sectional pipe smoothly, solve and sensor cannot be drawn smoothly to the technical barrier in cross-sectional pipe in highway widening roadbed, the Settlement Observation that can be in highway widening roadbed provides technical support.
The draught line 5 that the present invention uses is the steel wire of outsourcing caulking gum layer.Draught line is a complete coil in cross-sectional pipe, and form loop, having one end of fixed pulley (being namely embedded in the port in roadbed), draught line rotates round fixed pulley; At another port (i.e. the port of exposure outside roadbed side slope), draught line is naturally smooth-going after being pulled to this port to be placed on inside port then wraparound and to form loop to fixed pulley, after cross-sectional pipe is buried underground, the port cap outside by roadbed is only needed to cover all right, during each measurement, open port cap, cover again after measurement.
Because the moisture in subgrade soils is heavier, to steel wire outsourcing caulking gum layer, one is prevent getting rusty of steel wire, although employing is stainless steel steel wire, within 3 or five years, gets off, still has some corrosions, and then sensor draws in cross-sectional pipe by impact smoothly; Two is outpacking rubber layers, decreases the friction force between draught line and fixed pulley, further ensures sensor and draws convenience into cross-sectional pipe.
Bolt hole is opened in apart from the tube wall at mouth of pipe 5cm ~ 10cm place, cross-sectional pipe one end, is preferably 10cm.In highway widening roadbed, the length of 8 ~ 10 meters generally buried underground by cross-sectional pipe, and sensor is through the traction of draught line, the position of bolt hole can only be reached, if the bolt hole of cross-sectional pipe is opened in from the distant place of port, then bolt hole is waste to the cross-sectional pipe of this this section of port because effectively cannot be measured by the sensor of cross-sectional instrument, uneconomical also not environmentally; If bolt hole to be opened in the place that distance port only has several centimeters, first when holing with electric drill, the cross-sectional pipe mouth of pipe may be caused to ftracture; Two is be afraid of erection bolt, when twisting nut, firmly excessive, thus causes the cross-sectional pipe mouth of pipe to ftracture.Determine that bolt hole offers position according to practical application test of many times.
Be 0.8cm ~ 1.4cm to the diameter wearing bolt 2, be preferably 1.0cm.Because the internal diameter of cross-sectional pipe only has 6cm, find when installing at the scene, if too little to wearing the diameter of bolt, in the process of sensor traction, unbalance stress and bend, and this bending meeting have a strong impact on measurement result, namely need to ensure that bolt is indeformable when sensor draws; Meanwhile, if the diameter of bolt is too large, occupy the too many useful space in cross-sectional pipe pipe, be disadvantageous to installation fixed pulley, therefore integrate, in actual application, in the range of size determining to select the present invention to provide to wearing bolt.
The diameter of fixed pulley 4 is 2.5 ~ 5cm, is preferably 3.0cm.The internal diameter of cross-sectional pipe only has 6cm, occupies certain space to wearing bolt, if the outside of such fixed pulley to pipe inwall between space too small, be unfavorable for in-site installation; And this spatial value is excessive, the difficult quality guarantee of fixed pulley and there is unnecessary space waste.Finally determine that the diameter of fixed pulley is 2.5 ~ 5cm by test of many times, preferred 3.0cm, in-site installation can be adapted to and can avoid unnecessary waste again.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the cross-sectional instrument sensor traction method in highway widening roadbed, is characterized in that, comprise the following steps:
Step one, according to the width of widening subgrade, get out the cross-sectional pipe that length is consistent with width of subgrade, offer the bolt hole of about one group correspondence at cross-sectional pipe mouth of pipe 5cm ~ 10cm place of the close Subgrade of old road side of distance and install one to wearing bolt, the two ends of wearing bolt are fixed by the tube wall of nut and cross-sectional pipe, smears glass cement for water-tight near bolt hole simultaneously;
Step 2, installing a fixed pulley on the centre position of wearing bolt, before having buried cross-sectional pipe underground, fixed pulley installs draught line, draught line walks around fixed pulley and port outside the other end of cross-sectional pipe, forms loop;
Step 3, buries the cross-sectional pipe after above-mentioned steps improvement underground, by the sensor bind of cross-sectional instrument on draught line, by pulling draught line, by the sensor traction in cross-sectional pipe to close Subgrade of old road side, and carries out the DATA REASONING in cross-sectional pipe by cross-sectional instrument; Pull the data line of sensor again, the sensor in cross-sectional pipe is drawn out to the cross-sectional pipe mouth of pipe, and test once by the every 50cm of cross-sectional instrument and record result;
Step 4, after measuring data, the adhesive tape of dismantling for bind draught line and sensor, and be buckled on the outside port of cross-sectional pipe by port cap, namely complete one-shot measurement;
Step 5, repeats step one to step 4, takes multiple measurements.
2. the cross-sectional instrument sensor traction method in a kind of highway widening roadbed according to claim 1, is characterized in that, in step 3, sensor is passed through adhesive tape bind on draught line.
3. the cross-sectional instrument sensor traction method in a kind of highway widening roadbed according to claim 1, it is characterized in that, described draught line is the steel wire of outsourcing caulking gum layer.
4. the cross-sectional instrument sensor traction method in a kind of highway widening roadbed according to claim 1, is characterized in that, the described diameter to wearing bolt is 0.8cm ~ 1.4cm, is preferably 1.0cm.
5. the cross-sectional instrument sensor traction method in a kind of highway widening roadbed according to claim 1, is characterized in that, the pulley groove of described fixed pulley, with the enclosing cover closed, prevents draught line from coming off from pulley groove.
6. the cross-sectional instrument sensor traction method in a kind of highway widening roadbed according to claim 1, is characterized in that, the diameter of described fixed pulley is 2.5 ~ 5cm, is preferably 3.0cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410582108.6A CN104316026B (en) | 2014-10-27 | 2014-10-27 | Cross-cutting instrument sensor traction method in road broadening subgrade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410582108.6A CN104316026B (en) | 2014-10-27 | 2014-10-27 | Cross-cutting instrument sensor traction method in road broadening subgrade |
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| Publication Number | Publication Date |
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| CN104316026A true CN104316026A (en) | 2015-01-28 |
| CN104316026B CN104316026B (en) | 2017-02-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926571A (en) * | 2016-04-19 | 2016-09-07 | 长沙理工大学 | Fixed type horizontal dip angle probe propelling device for widened roadbed |
| CN113155086A (en) * | 2021-02-26 | 2021-07-23 | 广西北投交通养护科技集团有限公司 | Device and method for monitoring settlement of cross section of filling roadbed in highway reconstruction and extension |
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| US20050188763A1 (en) * | 2004-02-26 | 2005-09-01 | Krejci John J. | Method and apparatus for measuring the draft of a vessel |
| KR100698540B1 (en) * | 2004-04-13 | 2007-03-21 | 김창근 | The settlement measurement reinforcement system that use settlement measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926571A (en) * | 2016-04-19 | 2016-09-07 | 长沙理工大学 | Fixed type horizontal dip angle probe propelling device for widened roadbed |
| CN113155086A (en) * | 2021-02-26 | 2021-07-23 | 广西北投交通养护科技集团有限公司 | Device and method for monitoring settlement of cross section of filling roadbed in highway reconstruction and extension |
| CN113155086B (en) * | 2021-02-26 | 2022-11-25 | 广西北投交通养护科技集团有限公司 | Device and method for monitoring section settlement of filling subgrade in highway reconstruction and extension |
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| CN104316026B (en) | 2017-02-15 |
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Inventor after: Zhang Junhui Inventor after: Yao Yongsheng Inventor after: Zheng Jianlong Inventor before: Zheng Jianlong Inventor before: Yao Yongsheng Inventor before: Zhang Junhui Inventor before: Wang Yanling Inventor before: Cen Guangming Inventor before: Dai Liangliang |
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