CN2078375U - Multi-point displacement meter for drilling in rock and soil - Google Patents
Multi-point displacement meter for drilling in rock and soil Download PDFInfo
- Publication number
- CN2078375U CN2078375U CN 90223994 CN90223994U CN2078375U CN 2078375 U CN2078375 U CN 2078375U CN 90223994 CN90223994 CN 90223994 CN 90223994 U CN90223994 U CN 90223994U CN 2078375 U CN2078375 U CN 2078375U
- Authority
- CN
- China
- Prior art keywords
- anchor head
- multiple position
- bore
- survey line
- bigger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a multi-point displacement meter for drilling holes, which is used to measure the axial displacement of drilling holes in the surrounding rocks or the foundations of mine workings, tunnels and foundation engineering. The multi-point displacement meter mainly comprises an anchor head, overhanging or convex spring pieces and a measuring tape. Three slotted taper pipe with a bigger caliber in middle and smaller calibers at both ends are fixedly connected to form the anchor head. One or more than one row of the overhanging or convex spring pieces are fixedly installed on the outer wall edge of the pipe with a bigger caliber in the middle of the anchor head. The utility model has the advantages of the anchoring reliability of the anchor head, accurate measurement and convenient installation and measurement.
Description
The utility model relates to a kind of boring multiple position extensometer that is used for measuring roadway, tunnel and foundation engineering country rock or basic internal along the borehole axial displacement.
The slit-tube formula rock-boring multiple position extensometer of design is simple in structure at present, but difficulty is installed, and anchor head requires very strict to bore diameter, when bore diameter is a bit larger tham the desired diameter of anchor head, anchored force is reduced significantly, cause measurement inaccurate, lack necessary guard aperture device between each anchor head, the survey chi can not stretchingly be measured behind the hole of collapsing, so this displacement meter is not suitable for the measurement in weak stratum, coal body and the soil layer.
It is a kind of easy to install that the purpose of this utility model is to provide, and can accurately measure in ground and be applicable to and measure the boring multiple position extensometer in weak stratum, coal body and soil layer.
The purpose of this utility model is to realize like this; anchor head adopts bigger by middle bore; three sections reduced pipes that crack that the two ends bore is little are formed by fixedly connecting; with bolt two groups or more is installed at the bigger tube outer wall upper edge periphery of middle bore and can plays the adjustment sheet that changes tube outer diameter; the shape of adjustment sheet can be curved slab or the surface plate that is attached on the tube outer wall; also can be overhanging type or convex; tube wall is equipped with tagblock by screw and is used for fixing the connection survey line; along the inside pipe wall periphery tail piece is housed fixedly at the anchor head afterbody; hit the tail piece by mechanical impulse force one or more anchor head is delivered to precalculated position in the boring; be set with protection tube between two anchor heads; keeping every survey line under identical pulling force; rely on datum plate, promptly reach the purpose of measuring displacement.
Accompanying drawing 1 is the tabular structural representation of curved surface for the utility model adjustment sheet.
Accompanying drawing 2 is that accompanying drawing 1 is left view.
Accompanying drawing 3 is accompanying drawing 1 sectional view.
Accompanying drawing 4 is overhanging type schematic diagram for the utility model adjustment sheet.
Accompanying drawing 5 is accompanying drawing 4 sectional views.
Accompanying drawing 6 is teased and ridicule the nodal plate structural representation for the utlity model has two.
Accompanying drawing 7 is the convex schematic diagram for the utility model adjustment sheet.
Accompanying drawing 9 is accompanying drawing 8 sectional views.
Accompanying drawing 10 fixedly is equipped with tail piece schematic diagram for the utility model at the anchor head afterbody.
Accompanying drawing 11 is accompanying drawing 10 left views.
Accompanying drawing 12 is accompanying drawing 10 positive views.
Accompanying drawing 13 is accompanying drawing 10 sectional views.
Accompanying drawing 14 is the utility model user mode schematic diagram.
Accompanying drawing 15 is accompanying drawing 14 left views.
Below in conjunction with accompanying drawing the utility model is done to discuss in detail.
As accompanying drawing 1,2, shown in 3, the utility model mainly contains anchor head 1, adjustment sheet 2, tagblock 4, tail piece 5, sleeve pipe 6, survey line 7 formations such as grade, anchor head 1 is bigger by middle bore, three sections less special-shaped footpath pipes that crack of two ends bore are formed by fixedly connecting, the tube outer wall upper edge periphery that middle bore is bigger is equipped with two groups or more the adjustment sheet 2 that can play the change tube outer diameter with bolt, the shape of adjustment sheet 2 can be the curved slab that is attached on the tube outer wall, as accompanying drawing 1,2, shown in 3, also surface plate, as accompanying drawing 8, shown in 9, also can be overhanging type, as accompanying drawing 4, shown in 5, also can be convex, as shown in Figure 7.Be installed with a row or the adjustment sheet 2 more than the row at the tube outer wall upper edge of anchor head 1 periphery, as shown in Figure 6.Anchor head 1 tube wall is fixed with tagblock 4 by screw 3; be used for fixing and connect survey line 7; when two or more anchor head 1 series connection are used; be set with protection tube 6 between two anchor heads; from an end of anchor head 1 survey line 7 is drawn; draw the place at survey line 7, the datum plate 5 vertical with survey line 7 fixedly is housed.Be installed in the tail piece 5 that anchor head 1 afterbody pipe inner rim fixedly is equipped with by mounting rod with mechanical impulse force impact; anchor head 1 is delivered to precalculated position in the hole; and again protection tube 6 is pushed boring, after all anchor heads and protection tube are installed, survey line 7 is all drawn boring.All surveys line of drawing are fixed on the solidus bolt 8.The body that cracks in the middle of shell fragment 2 and the anchor head is subjected to boring pressure and is out of shape, and the reaction force acts of generation forms anchoring on drill hole wall, as shown in Figure 14.During measurement; with several springs strain survey line 7 respectively; under identical pulling force; survey successively and read and note the distance of each measuring point apart from datum plate 5, survey run through finish after, the annulus that will survey the chi end again is docile and obedient preface and is enclosed within on another solidus bolt 8; over cap is installed at last; when country rock or basis generation displacement, drive anchor head and move, directly survey at fore shaft and read promptly to get data.
It is reliable to the utlity model has anchoring, and the boring degree of depth is not limit, and measuring point quantity is not limit, and measures accurately, installs and measures the advantages such as a convenience.
Claims (5)
1, a kind of ground boring multiple position extensometer comprises anchor head 1, survey line 7 etc., it is characterized in that:
A anchor head 1 is bigger by middle bore, and three sections less reduced pipes that crack of two ends bore are formed by fixedly connecting,
The tube outer wall upper edge periphery that bore is bigger in the middle of the B anchor head 1 is equipped with two groups or more with bolt can play the adjustment sheet 2 that changes tube outer diameter, the shape of adjustment sheet 2 can be curved slab or the surface plate that is attached on the tube outer wall, also can be overhanging type or convex
The tube wall that bore is bigger in the middle of the C anchor head 1 fixedly is equipped with tagblock 4 by bolt 3 and is used for fixing connection survey line 7,
D fixedly is equipped with tail piece 5 at anchor head 1 afterbody along the inside pipe wall periphery.
2, a kind of ground boring multiple position extensometer according to claim 1 is characterized in that described anchor head can be to be made of a seamless pipe.
3, a kind of ground boring multiple position extensometer according to claim 1 and 2 is characterized in that the tube outer wall upper edge periphery of anchor head 1 is installed with a row or the above adjustment sheet 2 of a row.
4, a kind of ground boring multiple position extensometer according to claim 1 and 2 is characterized in that two or more anchor head 1 series connection uses, and it connects the outer protection tube 6 that is set with.
5, a kind of ground boring multiple position extensometer according to claim 1 and 2 is characterized in that the place of drawing at survey line 7, and the datum plate 5 vertical with survey line 7 fixedly is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90223994 CN2078375U (en) | 1990-11-19 | 1990-11-19 | Multi-point displacement meter for drilling in rock and soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90223994 CN2078375U (en) | 1990-11-19 | 1990-11-19 | Multi-point displacement meter for drilling in rock and soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2078375U true CN2078375U (en) | 1991-06-05 |
Family
ID=4901653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90223994 Withdrawn CN2078375U (en) | 1990-11-19 | 1990-11-19 | Multi-point displacement meter for drilling in rock and soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2078375U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835277A (en) * | 2012-11-22 | 2014-06-04 | 同济大学 | Inflatable type multipoint displacement meter anchor head for soft soil stratums |
| CN103900514A (en) * | 2014-04-24 | 2014-07-02 | 中国科学院武汉岩土力学研究所 | Multi-point displacement meter installation and automatic data collection method of steeply inclined seam roadway |
| CN104849749B (en) * | 2015-05-12 | 2017-06-16 | 四川大学 | The installation method of microseismic monitoring sensor mounting cup and microseismic monitoring sensor |
-
1990
- 1990-11-19 CN CN 90223994 patent/CN2078375U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835277A (en) * | 2012-11-22 | 2014-06-04 | 同济大学 | Inflatable type multipoint displacement meter anchor head for soft soil stratums |
| CN103835277B (en) * | 2012-11-22 | 2016-02-17 | 同济大学 | A kind of air heave type multiple position extensometer anchor head for soft soil layer |
| CN103900514A (en) * | 2014-04-24 | 2014-07-02 | 中国科学院武汉岩土力学研究所 | Multi-point displacement meter installation and automatic data collection method of steeply inclined seam roadway |
| CN104849749B (en) * | 2015-05-12 | 2017-06-16 | 四川大学 | The installation method of microseismic monitoring sensor mounting cup and microseismic monitoring sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |