CN2188751Y - Dark protection station for underground engineering convergence measurement - Google Patents
Dark protection station for underground engineering convergence measurement Download PDFInfo
- Publication number
- CN2188751Y CN2188751Y CN 94228057 CN94228057U CN2188751Y CN 2188751 Y CN2188751 Y CN 2188751Y CN 94228057 CN94228057 CN 94228057 CN 94228057 U CN94228057 U CN 94228057U CN 2188751 Y CN2188751 Y CN 2188751Y
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- measurement
- convergence
- shell
- utility
- underground engineering
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Abstract
The utility model relates to a shell expansion combined type dark protection station for underground engineering convergence measurement, which belongs to the monitoring measurement technology of the deformation of surrounding rock. The utility model comprises a burying rod which passes through an expansion shell, wherein, one end of the burying rod is provide with a wedge-shaped body, wherein, the center of the burying rod is provided with a grouting hole along the axial direction, the upper end is connected with a measuring head by screw threads, and the other end of the measuring head is provided with a pin hole. Accordingly to the practical application, the utility model has the advantages of simple structure, 100 percent of successful rate of installation and measurement, no damage of stations and elimination of the mutual interference of the measurement and construction, and is particularly suitable for being matched with a convergence gauge to measure the convergence of underground engineering.
Description
The utility model relates to a kind of bloated shell combined type of underground works convergence measurement and secretly protects measuring point, belongs to surrouding rock deformation monitoring measurement technology, is particularly suitable for carrying out the underground works convergence with the supporting use of convergence gauge and measures.
In water conservancy, railway, traffic, coal, in mine tunnel and the underground engineering construction, convergence measure be regulation among the standard GB J86-85 " Technical code for shotcrete rock bolts shore " monitoring measurement must survey project, this project is when measuring tunnel Surrounding Rocks Deformation, need on the country rock wall, to bury underground some measuring points, and then the distance between measuring at 2 with convergence gauge, according to the both sides dot spacing from Changing Pattern judge that country rock is whether stable, whether security incident can appear, predict that according to this tunnel country rock carries out opportunity of supporting or the like, thereby the construction of guaranteeing underground workss such as tunnel is reliable and secure.Restrain the precision that measures; general requirement is all very high; not only require measuring instrument itself that very high precision is arranged for this reason; and the precision that measures measuring point also should be very high could guarantee measurement accuracy; yet the common in the past bloated shell-type that adopts; bonded and fall measuring point such as wedge-type; because its gauge head is a unitary whole formula version with burying bar; and gauge head is exposed outside; very easily by concussion of blasting; slungshot and artificial collision; extension thing etc. makes the measuring point distortion; loosening; even smash; its spoilage reaches 30-50%; measurement work is caused irreparable damage; once there was the special metal cap of human to protect based on this reason; though this kind guard method can prevent fritter slungshot and the artificial direct destruction to gauge head; but because of its cover body that occupies greater room exposes at rock surface; just easier being pounded by slungshot bumped and damaged; the degree of reliability is low; increased cost simultaneously; install and fix time-consuming; also to dismantle during each the measurement; spun out the measurement time; also bigger with the interference of construction; therefore; some unit often follows the line of least resistance and does not simply protect; appoint gauge head to be exposed to rock; even if lucky not damage success; as be damaged, reinstall measuring point again, measure again; not only expensive time-consuming; and valuable data gives up halfway because of measuring point damages, and increased trouble to measurement, and this problem difficult to tackle is never solved for a long time preferably.
The purpose of this utility model be to provide a kind of simple in structure, erected cost is low, little even do not disturb, effectively prevent the loosening distortion of measuring point, breakage mutually with the interference of construction, guarantee that the bloated shell combined type of measurement accuracy and quality is secretly protected measuring point.
The purpose of this utility model realizes by the following technical solutions, form by bloated shell, its upper end of burying bar is passed from an end of the shell that expands, the sphenoid of lower end can not be by the shell that expands, the center has grouting hole vertically, the upper end links to each other with gauge head by screw thread, and the other end of gauge head is provided with the pin-and-hole that links to each other with convergence gauge.
Described upper end of burying bar should be imbedded below the scar when mounted, and is provided with for the tin hat that shields on ordinary days.
The utility model compared with prior art; owing to adopted gauge head and the structure of burying the bar separate assembling; bury the bar upper end during installation and be lower than rock surface again; be provided with a series of technical measures such as tin hat at ordinary times; and practical application shows have success ratio simple in structure, that install and measure to reach 100% in certain seepage tunnel engineering; none damages measuring point, and its precision that measures achievement reaches leading domestic level, and has eliminated and the mutual interference mutually of constructing.Significant social and economic benefit are arranged simultaneously; Implement to be beneficial to and to apply easily.
Fig. 1 is that master of the present utility model looks and use the mounting structure synoptic diagram.
Fig. 2 is the structural representation of tin hat.
Embodiment of the present utility model is described in conjunction with the accompanying drawings, bury the upper end of bar 3 and pass the shell 7 that expands, and the lower end with sphenoid 6 can not be by expanding shell 7, the center of burying bar 3 upper ends has grouting hole 4 vertically, the termination radially is provided with grout outlet 5, the upper end links to each other with an end of gauge head 2 with screw thread, and the other end radially has the pin-and-hole 1 that links to each other with convergence gauge; The upper end of burying bar 3 also is provided with for the tin hat 8 that shields at ordinary times.
When using, realizes the utility model by program; hole outside at first on rock, beating with electric hammer; endoporus is beaten in the center, hole outside then; aperture and hole depth should and be buried bar 3 length with bloated shell 7 external diameters and be complementary; to bury bar 3 puts the shell 7 that expands and sends in the endoporus; load onto the technology rubber cushion; plain cushion and spring washer; tighten the technology nut; make the upper end of burying bar 3 be lower than outer hole scar; inject the quantitative chemical slurries by grouting hole 4 then; it is entered bury bar 3 and bloated shell 7; among the crack around bloated shell 7 and petrosal foramen wall and the petrosal foramen wall; with burying bar 3 fixed with rock mass is a firm integral body; gauge head 2 is loaded on and buries on the bar 3 during measurement, and gauge head 2 links to each other and can measure with the convergence gauge sleeve by the pin-and-hole 1 of upper end, measures to unload gauge head 2 after finishing and tin hat 8 is screwed in to bury on the bar 3 gets final product.
Claims (2)
1, a kind of bloated shell combined type of underground works convergence measurement is secretly protected measuring point; form by bloated shell 7; it is characterized in that oneself end of bloated shell 7 of upper end that buries bar 3 passes; the sphenoid 6 of lower end can not be by the shell 7 that expands; the center has grouting hole 4 vertically; the upper end links to each other with gauge head 2 by screw thread, and the other end of gauge head 2 is provided with the pin-and-hole 1 that links to each other with convergence gauge.
2, measuring point according to claim 1 is characterized in that described upper end of burying bar 3 should imbed below the scar of outer hole, and is provided with for the tin hat 8 that shields on ordinary days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228057 CN2188751Y (en) | 1994-03-17 | 1994-03-17 | Dark protection station for underground engineering convergence measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228057 CN2188751Y (en) | 1994-03-17 | 1994-03-17 | Dark protection station for underground engineering convergence measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2188751Y true CN2188751Y (en) | 1995-02-01 |
Family
ID=33840680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94228057 Expired - Fee Related CN2188751Y (en) | 1994-03-17 | 1994-03-17 | Dark protection station for underground engineering convergence measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2188751Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494007A (en) * | 2011-12-30 | 2012-06-13 | 山东大学 | Auxiliary device for anti-destructive monitoring and measurement of convergence points in tunnel engineering and method for burying auxiliary device |
-
1994
- 1994-03-17 CN CN 94228057 patent/CN2188751Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494007A (en) * | 2011-12-30 | 2012-06-13 | 山东大学 | Auxiliary device for anti-destructive monitoring and measurement of convergence points in tunnel engineering and method for burying auxiliary device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |