CN201678991U - Simple roadbed settlement observation plate capable of being leveled - Google Patents
Simple roadbed settlement observation plate capable of being leveled Download PDFInfo
- Publication number
- CN201678991U CN201678991U CN2010201509105U CN201020150910U CN201678991U CN 201678991 U CN201678991 U CN 201678991U CN 2010201509105 U CN2010201509105 U CN 2010201509105U CN 201020150910 U CN201020150910 U CN 201020150910U CN 201678991 U CN201678991 U CN 201678991U
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- measuring staff
- fixed
- settlement observation
- observation plate
- measuring bar
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Abstract
A simple roadbed settlement observation plate capable of being leveled mainly comprises a measuring bar. The measuring bar comprises a plurality of sections of round tubes connected with one another, the bottom section of the measuring bar is vertically fixed on a baseplate; one or two groups of spoke type connecting bars are arranged in the same plane surface, one end(s) of the group(s) of the spoke type connecting bar(s) is(are) arranged in the middle of each section of the measuring bar, and the other end(s) of the connecting bar(s) is(are) fixed on the inner wall of a stabilizing protective cylinder; the length of the stabilizing protective cylinder is about one third of that of the measuring bar; two level pipes perpendicular to each other in direction are fixed at the upper part of the baseplate; and exhaustion through-holes are formed on the baseplate. The utility model has the advantages of simple structure, easy operation, quick and accurate leveling of the observation plate, high burying efficiency of the observation plate, good stability of the measuring bar and high measuring accuracy.
Description
Technical field the utility model relates to a kind of road construction monitoring subgrade settlement observation device that is used for.
Background technology is built road on soft foundation, key issue is the stable and subgrade settlement problem of embankment, (JTJ017-96) stipulate according to " highway soft soil ground embankment design and construction technical specification ", be the deformation dynamics of grasp embankment in construction period, construction period must be provided with settlement plate and be out of shape monitoring.The structure of existing settlement plate is: it has a plate shaped base plate, is fixed with the measuring staff of being made up of the multistage pipe on this base plate, and every section measuring staff two ends are equipped with screw thread, is connected with each other by the interior measuring staff joint of establishing screw thread.Bottom one section side lever is vertically fixed on the base plate, is provided with uniform stiffener all around and all is with the cylindrical shape casing that internal diameter is a bit larger tham the measuring staff external diameter from top to bottom in the outside of above-mentioned every section side lever.But this settlement plate is buried underground in the process actual, needs still during its panel level of corrections that instrument such as levelling rod is auxiliary to be finished, and its operating process is comparatively complicated, has influenced operating efficiency to a certain extent; In addition, the set casing in measuring staff outside is carefully grown, and it can not increase the stability of measuring staff, easily produces under external force is disturbed and rocks, and measuring staff top absolute altitude is changed, and causes certainty of measurement to descend.
But the summary of the invention the purpose of this utility model provides a kind of simple and easy subgrade settlement observation board of easy and simple to handle, leveling that certainty of measurement is high.The utility model also includes base plate, measuring staff, stiffener, levelling tube, measuring staff joint and firm casing.On base plate, be provided with several exhaust holes,, prevent that base plate from coming to nothing so that air in the foundation soil is in time got rid of.Base plate top is fixed with the mutually perpendicular levelling tube of both direction, plays the effect of base plate leveling, and this process is more quick more, accurate than the auxiliary leveling of levelling rod, can improve 30% instrument embedding efficient.Measuring staff is the same with prior art, is made up of the multistage pipe, and every section measuring staff two ends are equipped with screw thread, are connected with each other by the measuring staff joint.Bottom one section measuring staff is vertically fixed on the base plate, is provided with stiffener all around.Every section measuring staff middle part is equipped with an end of the 1-2 group spoke type dowel that is positioned at same plane, every group of dowel 3-6 root, and their other end all is fixed on the inwall of the firm casing of cylindrical shape.This is located at measuring staff and the outer stable casing of dowel, and its length is 1/3 of measuring staff length approximately.The effect of above-mentioned firm casing is the contact area that enlarges measuring staff and surrounding soil, increases skin friction, thereby reaches the purpose that improves measuring staff stability, can also play the certain protection effect to measuring staff.After this simple and easy settlement plate is buried underground and finished, can observe the elevation variation at measuring staff top, calculate the settling amount of roadbed by level gauge.
The utility model is simple in structure, operation is simple and easy, leveling is quick accurately, bury efficient height, measuring staff good stability, certainty of measurement height underground.
Description of drawings:
Fig. 1 is that master of the present utility model looks schematic diagram.
Fig. 2 is a schematic top plan view of the present utility model.
But the specific embodiment is in the schematic diagram of the simple and easy subgrade settlement observation board of a kind of leveling illustrated in figures 1 and 2, the utility model has a plate shaped base plate 1, this base plate is provided with 4 exhaust holes 2, and be fixed with the measuring staff of forming by the multistage pipe 3, bottom one section measuring staff is vertically fixed on the base plate, is provided with stiffener 4 all around.The measuring staff top is provided with rainproof plug.This base plate top is fixed with the mutually perpendicular levelling tube 5 of both direction.Every section measuring staff two ends are equipped with screw thread, are connected with each other by the interior measuring staff joint 6 of establishing screw thread.Every section measuring staff middle part is equipped with the end that the 1-2 that is positioned at same plane organizes spoke type dowel 7,4 of every group of dowels, and their other end all is fixed on the inwall of the firm casing 8 of cylindrical shape, and this casing length is 1/3 of measuring staff length approximately.
Claims (4)
1. but the simple and easy subgrade settlement observation board of a leveling, the measuring staff that the pipe that is linked to each other by multistage is formed, bottom one section side lever is vertically fixed on the base plate, it is characterized in that: the middle part of above-mentioned every section measuring staff is equipped with an end of the 1-2 group spoke type dowel that is positioned at same plane, and the other end of this dowel all is fixed on the inwall of firm casing.
2. but the simple and easy subgrade settlement observation board of a kind of leveling according to claim 1, it is characterized in that: the length of above-mentioned firm casing is 1/3 of measuring staff length approximately.
3. but the simple and easy subgrade settlement observation board of a kind of leveling according to claim 1, it is characterized in that: base plate top is fixed with the mutually perpendicular levelling tube of both direction.
4. a kind of simple and easy subgrade settlement observation board according to claim 1 is characterized in that: be provided with exhaust hole on base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201509105U CN201678991U (en) | 2010-04-07 | 2010-04-07 | Simple roadbed settlement observation plate capable of being leveled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201509105U CN201678991U (en) | 2010-04-07 | 2010-04-07 | Simple roadbed settlement observation plate capable of being leveled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201678991U true CN201678991U (en) | 2010-12-22 |
Family
ID=43344042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201509105U Expired - Fee Related CN201678991U (en) | 2010-04-07 | 2010-04-07 | Simple roadbed settlement observation plate capable of being leveled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201678991U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485223A (en) * | 2019-08-22 | 2019-11-22 | 朔黄铁路发展有限责任公司 | Ballast track subgrade settlement monitoring device and Ballast track roadbed settlement monitoring method |
| CN115183738A (en) * | 2022-07-07 | 2022-10-14 | 中航勘察设计研究院有限公司 | Vertical displacement monitoring method for deep-buried soil foundation |
-
2010
- 2010-04-07 CN CN2010201509105U patent/CN201678991U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485223A (en) * | 2019-08-22 | 2019-11-22 | 朔黄铁路发展有限责任公司 | Ballast track subgrade settlement monitoring device and Ballast track roadbed settlement monitoring method |
| CN115183738A (en) * | 2022-07-07 | 2022-10-14 | 中航勘察设计研究院有限公司 | Vertical displacement monitoring method for deep-buried soil foundation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20110407 |