CN211527376U - Settlement monitoring structure for slope roadbed - Google Patents
Settlement monitoring structure for slope roadbed Download PDFInfo
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- CN211527376U CN211527376U CN202020254016.6U CN202020254016U CN211527376U CN 211527376 U CN211527376 U CN 211527376U CN 202020254016 U CN202020254016 U CN 202020254016U CN 211527376 U CN211527376 U CN 211527376U
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Abstract
The utility model relates to a monitoring of road bed construction, in particular to settlement monitoring structure for slope road bed, including being used for stretching into the section pipe of road bed, the intraductal guide way that is used for the probe to remove that is provided with of this section, a pair of guide way is placed perpendicularly, and another opposite direction groove level is placed, penetrates the stay cord that is used for pulling the test instrument probe in this section, and the both ends that are used for application of force pulling this stay cord on the stay cord are located the section outside of tubes, and the section pipe is the U-shaped, and the crooked part of this section pipe is located by the mountain side, and this section pipe both ends all are located the outside of slope road bed. Through setting up foretell U-shaped section pipe, with crooked one side point to lean on the mountain side, stretch out the both ends of this U-shaped section pipe outside to the slope road bed, alright draw with the stay cord of putting in at the intraductal from section pipe both ends, the U-shaped part can be tested and lean on the settlement of mountain side road bed, convenient, easy operation.
Description
Technical Field
The utility model relates to a monitoring of road bed construction, in particular to settlement monitoring structure for slope road bed.
Background
The roadbed with the high fill slope is an important component in road construction, the geological condition is complex, quality safety hazards are easy to occur once the roadbed is not well processed, the monitoring after construction is an important component of roadbed engineering, wherein the roadbed settlement monitoring is one of important contents of the monitoring after construction, at present, the settlement of the roadbed is widely monitored by adopting a profile pipe, namely the profile pipe penetrates through the whole roadbed along the width direction of the roadbed, one end of the profile pipe extends out of the other side of the roadbed, a guide groove is arranged in the profile pipe, when the settlement of the roadbed needs to be measured, a probe and a pull rope of a test instrument are placed in the profile pipe, a pulley for monitoring the settlement point position is arranged on the probe, the pull rope is pulled to enable the pulley to move in the profile pipe, the settlement data of the profile pipe is obtained through the moving track of the pulley, and therefore the settlement amount of. However, due to the structural characteristics of the high fill slope roadbed, due to the existence of the slope, the high fill slope roadbed cannot be penetrated by the roadbed to be provided with the profile pipe, so that the currently common profile pipe structure cannot be applied to the settlement monitoring of the slope roadbed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a settlement monitoring structure that can be applicable to the slope road bed.
In order to achieve the purpose, the technical scheme adopted by the application is that the settlement monitoring structure for the slope roadbed comprises a section pipe which is used for extending into the roadbed, a guide groove used for moving a probe is arranged in the section pipe, a pair of guide grooves is arranged to be vertically placed, the other pair of guide grooves is arranged to be horizontally placed, a pull rope used for pulling the probe of a test instrument penetrates into the section pipe, two ends of the pull rope used for applying force to pull the pull rope are located outside the section pipe, the section pipe is U-shaped, the bent part of the section pipe is close to the side, close to the mountain, of the roadbed, and two ends of the section pipe are located on the outer side of the slope roadbed.
By arranging the U-shaped section pipe, the bent side is directed to the mountain side when the pipe is buried, and the two ends of the U-shaped section pipe extend out of the slope roadbed.
When the device is used, the pull ropes arranged in the profile pipe can be pulled from the two ends of the profile pipe, the U-shaped part can monitor the settlement of the roadbed part close to the mountain side, and the device is convenient and easy to operate.
Furthermore, the section pipe is formed by sequentially butting a plurality of sections of section pipe units, and a geotextile wrapping layer is sleeved outside the section pipe units at the butting position.
Further, the multi-section profile pipe unit comprises a plurality of straight sections and at least one bent section, and the at least one bent section forms a U-shaped part of the profile pipe.
Further, the apex of the U-shaped portion of the cross-sectional tube is located on the midsection of at least one of the curved sections.
This avoids the knuckle butt joint being the point closest to the ramp.
Further, the cross-sectional pipe is installed in an embedding groove provided in the roadbed.
Furthermore, a medium coarse sand layer is arranged in the embedding groove, and the section pipe is arranged in the medium coarse sand layer.
Furthermore, the settlement monitoring structure for the slope subgrade also comprises a concrete protection well positioned outside the slope subgrade, and the end of the section settlement pipe is arranged in the concrete protection well. The ends of the profile tube are protected from damage.
The present invention will be further described with reference to the accompanying drawings and the detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description. Or may be learned by practice of the invention.
Drawings
The accompanying drawings, which form a part of the disclosure, are included to assist in understanding the disclosure, and the description provided herein and the accompanying drawings, which are related thereto, are intended to explain the disclosure, but do not constitute an undue limitation on the disclosure.
In the drawings:
fig. 1 is a schematic side view for explaining the settlement monitoring structure for a sloping roadbed;
fig. 2 is a schematic top view for explaining the settlement monitoring structure for the sloping roadbed;
FIG. 3 is a schematic sectional view for explaining a sectional pipe in the present burying tank;
the labels in the figure are: the device comprises a section pipe 1, a linear joint 1a, a bent joint 1b, a guide groove 110, a geotextile wrapping layer 120, a probe 2, a pull rope 3, an embedding groove 4, a medium coarse sand layer 410, a concrete protection well 5 and a testing instrument 6.
Detailed Description
The present invention will be described more fully with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Before the present invention is described with reference to the accompanying drawings, it is to be noted that:
the technical solutions and features provided in the present invention in each part including the following description may be combined with each other without conflict.
Moreover, the embodiments of the invention described in the following description are generally only examples of a subset of the invention, and not all examples. Therefore, all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.
With respect to the terms and units of the present invention. The term "comprises" and any variations thereof in the description and claims of this invention and the related art are intended to cover non-exclusive inclusions.
Referring to fig. 1-3, a settlement monitoring structure for a slope roadbed comprises a profile pipe 1 for extending into a roadbed, wherein a guide groove 110 for moving a probe is arranged in the profile pipe 1, one pair of guide grooves is vertically arranged, the other pair of guide grooves is horizontally arranged, a pull rope 3 for pulling a probe 2 in a test instrument 6 is inserted into the profile pipe 1, two ends of the pull rope 3 for applying force to pull the pull rope 3 are positioned outside the profile pipe 1, the profile pipe 1 is U-shaped, the bent part of the profile pipe 1 is positioned on the side close to a mountain, and two ends of the profile pipe 1 are positioned outside the slope roadbed.
The test instrument 6 can be a portable JMZX-7000 comprehensive test instrument through which data acquisition and processing is performed.
By providing the U-shaped cross-sectional pipe 1 as described above, the bent side is directed to the mountain side during burying, and both ends of the U-shaped cross-sectional pipe 1 are extended to the side of the slope roadbed.
When the device is used, the pull ropes 3 arranged in the profile pipe 1 can be pulled from the two ends of the profile pipe, the U-shaped part can test the settlement of the roadbed on the backer side, and the device is convenient and easy to operate.
The section pipe 1 is formed by sequentially butting a plurality of sections of section pipe units, and a geotextile wrapping layer 120 is sleeved outside each section pipe unit at the butting position. Through the setting of geotechnological cloth wrapping layer 120 to prevent that foreign matter such as silt from entering into section pipe 1 in, low cost obtains easily, geotechnological cloth wrapping layer 120 here can adopt and prick firmly with plastics ribbon or thin iron wire for more firm.
The multi-section sectional pipe unit comprises a plurality of straight sections 1a and at least one bending section 1b, and the at least one bending section 1b forms a U-shaped part of the sectional pipe 1. The top of the U-shaped part of the section tube 1 is located on the middle section of at least one bending section 1 b. This is to avoid the abutting position of the bending joint 1b being the point closest to the slope.
The section pipe 1 is installed in a buried tank 4 provided in a roadbed. The burying tank 4 is provided therein with a medium grit layer 410, and the section pipe 1 is provided in the medium grit layer 410.
During setting, firstly, a layer of roadbed filling with the thickness of 60cm is laid on a foundation, the roadbed filling is rolled and compacted, then a groove is formed and buried, the width of the groove is 20-30 cm, the depth of the groove is 8-11 cm from the top surface of a foundation reinforcing surface layer, medium coarse sand with the thickness of 20cm is backfilled at the groove bottom to form a medium coarse sand layer 410, and the section pipe 1 is laid in the groove.
The U-shaped cross-sectional tube 1 is provided here by the following steps:
(1) and excavating a U-shaped groove on the surface of the rolled filling layer, wherein the groove is matched with the U-shaped section pipe, the excavation depth of the groove exceeds 30cm, and a layer of medium sand with the depth of 5cm is paved at the bottom of the groove.
(2) Connecting a profile pipe, sequentially connecting screws for the profile pipe to the other edge of the roadbed from one edge, penetrating an iron wire or a steel strand into the profile pipe, and exposing 1m of two ends of the profile pipe outside the slope surface on one side of the slope roadbed slope.
(3) And covering the connected section pipes with medium sand with the thickness of 5cm, and backfilling the grooves. Heavy mechanical compaction cannot be used after the profile tube is buried.
(4) And selecting a proper position, arranging fixed level observation points and pipe end observation points on the side slope, measuring an initial value by using an inclinometer, and sealing and protecting the port of the profile pipe after the initial value is measured, so as to prevent silt from entering.
(5) And (3) carrying out slope subgrade settlement observation, pulling the pull rope 3 to enable the probe 2 to move along a U-shaped track in the pipe, and carrying out subgrade cross section settlement monitoring and pipe end settlement monitoring at the same time.
The settlement monitoring structure for the slope subgrade further comprises a concrete protection well 5 located outside the slope subgrade, the end of the section pipe 1 is arranged in the concrete protection well 5, and a settlement observation point is arranged in the protection well.
And a portable JMZX-7000 comprehensive tester is adopted for detection, data acquisition and processing. The contents of the present invention have been explained above. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Based on the above-mentioned contents of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Claims (8)
1. A settlement monitoring structure for slope road bed, including being used for stretching into the section pipe of road bed, this section intraductal setting is opened has the guide way that is used for the probe to remove, sets up a pair of guide way and places perpendicularly, sets up another opposite direction groove and places horizontally, penetrates the stay cord that is used for pulling the test instrument probe in this section pipe, its characterized in that, the both ends that are used for application of force pulling this stay cord on the stay cord are located the section outside of the pipe, the section pipe is the U-shaped, and the crooked part of this section pipe is located by the mountain side, and this section pipe both ends all are located the outside of slope road bed.
2. The settlement monitoring structure for a sloping subgrade according to claim 1, characterized in that the section pipe is composed of a plurality of sections of section pipe units which are butted in sequence, and a geotextile wrapping layer is sleeved outside the section pipe units at the butted positions.
3. The settlement monitoring structure for a sloping subgrade according to claim 2, characterized in that the multi-section profile pipe unit comprises a plurality of straight sections and at least one bent section, and the at least one bent section constitutes a U-shaped portion of the profile pipe.
4. The settlement monitoring structure for a sloping subgrade according to claim 3, characterized in that the apex of the U-shaped part of the profile tube is located on the middle section of at least one bending section.
5. The settlement monitoring structure for a sloping roadbed as claimed in claim 1, wherein the profile pipe is disposed in a buried tank provided on the roadbed.
6. The settlement monitoring structure for a sloping roadbed as claimed in claim 5, wherein a medium coarse sand layer is provided in the burying tank, and the profile pipe is provided in the medium coarse sand layer.
7. The settlement monitoring structure for a sloping subgrade according to claim 1, further comprising a concrete protection well located outside the sloping subgrade, and the ends of the profile pipe are embedded in the concrete protection well.
8. The settlement monitoring structure for a sloping subgrade according to claim 1, characterized in that the pull rope is a galvanized steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020254016.6U CN211527376U (en) | 2020-03-04 | 2020-03-04 | Settlement monitoring structure for slope roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020254016.6U CN211527376U (en) | 2020-03-04 | 2020-03-04 | Settlement monitoring structure for slope roadbed |
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| Publication Number | Publication Date |
|---|---|
| CN211527376U true CN211527376U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020254016.6U Active CN211527376U (en) | 2020-03-04 | 2020-03-04 | Settlement monitoring structure for slope roadbed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2020
- 2020-03-04 CN CN202020254016.6U patent/CN211527376U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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