CN202938826U - Tunnel inflected arch lining steel bar scale distance ruler - Google Patents
Tunnel inflected arch lining steel bar scale distance ruler Download PDFInfo
- Publication number
- CN202938826U CN202938826U CN 201220694375 CN201220694375U CN202938826U CN 202938826 U CN202938826 U CN 202938826U CN 201220694375 CN201220694375 CN 201220694375 CN 201220694375 U CN201220694375 U CN 201220694375U CN 202938826 U CN202938826 U CN 202938826U
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- CN
- China
- Prior art keywords
- gauge length
- tunnel
- length instrument
- inflected
- scale distance
- 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.)
- Expired - Lifetime
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a tunnel inflected arch lining steel bar scale distance ruler, which consists of two same scale distance ruler bodies, wherein a plurality of parallel grooves are formed above a scale distance ruler frame and are communicated along the width direction; a distance between the grooves is equal to that between annular main ribs; and the widths of the grooves are equal to the diameters of the annular main ribs. The tunnel inflected arch lining steel bar scale distance ruler is simple in structure and easy to operate; construction for inflected arch steel bars can be executed by the scale distance ruler; and the distances between the annular main ribs and the altitude of the steel bars can be precisely controlled.
Description
Technical field
The utility model relates to gauge length instrument, particularly a kind of tunnel invert lining cutting steel reinforcing bar gauge length instrument.
Background technology
Tunnel invert lining cutting reinforcing bar generally at the scene colligation install, its construction method is: step 1, carry out field lofting by the measurement group according to design drawing; Step 2, according to the result of setting-out, the location skeleton reinforcing steel bar is installed; The circumferential reinforcement of step 3, installing bottom layer; The longitudinal reinforcement of step 4, installing bottom layer; Step 5, after the bottom layer of the reinforcing steel installation, then carry out according to the spacing of two-layer reinforcing bar that top layer is vertical, circumferential reinforcement is installed.In work progress, spacing and the absolute altitude precision of hoop master muscle are wayward.
The utility model content
The purpose of this utility model is to provide tunnel invert lining cutting steel reinforcing bar gauge length instrument a kind of simple in structure, easy to use, carries out the construction of inverted arch reinforcing bar by this gauge length instrument, can realize the accurate control to hoop master muscle spacing, and the accurate control of reinforcing bar elevation.
The utility model provides a kind of tunnel invert lining cutting steel reinforcing bar gauge length instrument, formed by two identical gauge length instrument framves, the top of described gauge length instrument frame has some grooves that are parallel to each other, described groove connects along its Width, the spacing of groove equals the spacing of hoop master muscle, and the width of groove equals the diameter of hoop master muscle.
The xsect of described groove is rectangle, and the degree of depth of described groove guarantees that more than or equal to the radius of hoop master muscle hoop master muscle 3 does not skid off in groove 2.
The beneficial effects of the utility model are: it is simple in structure, easily processing, and cost is low, by the reinforcement construction of this gauge length instrument to the tunnel invert lining cutting, can reach the accurate control to the main muscle spacing of annular, by the gauge length instrument absolute altitude accurately is set, can reaches the precision of reinforcing bar elevation is controlled.
Description of drawings
Fig. 1 is use constitutional diagram of the present utility model;
Fig. 2 is along the sectional view of A-A line in Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Tunnel invert lining cutting steel reinforcing bar gauge length instrument as depicted in figs. 1 and 2; formed by two identical gauge length instrument framves 1; gauge length instrument frame 1 processes by rectangular steel pipe; have some grooves that are parallel to each other 2 above gauge length instrument frame 1; groove 2 connects along its Width; the spacing of groove 2 equals the spacing of hoop master muscle 3; groove 2 xsects are rectangle; and the width of groove 2 equals the diameter of hoop master muscle 3; the degree of depth of groove 2 can not skid off in groove 2 to guarantee hoop master muscle 3 greater than the radius of (or equaling) hoop master muscle 3.
The xsect of described groove 2 also can be circular arc or V-arrangement.
Adopt this gauge length instrument to carry out the construction method of inverted arch reinforcing bar, its step is:
Step 1, set up mortar buttress/Steel bar rack: at first calculate the tunnel invert Lining Ring to the absolute altitude of main muscle 3, and extrapolate the installed height mark of gauge length instrument, according to the gauge length instrument installed height mark of extrapolating, measure setting-out in the tunnel invert excavation face, determine the riding position of gauge length instrument, and according to the discrepancy in elevation situation of inverted arch excavation face and gauge length instrument, set up respectively mortar buttress/Steel bar rack of placing gauge length instrument in the left and right sides in tunnel;
Step 3, installing ring are to main muscle: hoop master muscle 3 correspondences that process are placed on the groove 2 of two gauge length instrument framves 1;
Step 4, installation longitudinal reinforcement: after 3 installations of hoop master muscle, to both sides, longitudinal reinforcement is installed from the tunnel midline position, and is carried out colligation with hoop master muscle 3 and fix, namely completed the installation of bottom layer of the reinforcing steel.Step 5, installation top layer framework of steel reinforcement: after the bottom layer of the reinforcing steel installation, according to the spacing of two-layer reinforcing bar, the top layer framework of steel reinforcement is installed, is then carried out reinforcement installation according to vertical, horizontal spacing, and carry out colligation.
Claims (3)
1. tunnel invert lining cutting steel reinforcing bar gauge length instrument, it is characterized in that: formed by two identical gauge length instrument framves (1), the top of described gauge length instrument frame (1) has some grooves that are parallel to each other (2), described groove (2) connects along its Width, the spacing of groove (2) equals the spacing of hoop master muscle (3), and the width of groove (2) equals the diameter of hoop master muscle (3).
2. tunnel invert lining cutting steel reinforcing bar gauge length instrument according to claim 1, it is characterized in that: the xsect of described groove (2) is rectangle, and the degree of depth of described groove (2) is more than or equal to the radius of hoop master muscle (3).
3. tunnel invert lining cutting steel reinforcing bar gauge length instrument according to claim 1, it is characterized in that: described gauge length instrument frame (1) is processed by rectangular steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694375 CN202938826U (en) | 2012-12-14 | 2012-12-14 | Tunnel inflected arch lining steel bar scale distance ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694375 CN202938826U (en) | 2012-12-14 | 2012-12-14 | Tunnel inflected arch lining steel bar scale distance ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202938826U true CN202938826U (en) | 2013-05-15 |
Family
ID=48323060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220694375 Expired - Lifetime CN202938826U (en) | 2012-12-14 | 2012-12-14 | Tunnel inflected arch lining steel bar scale distance ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202938826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033174A (en) * | 2012-12-14 | 2013-04-10 | 中铁隧道集团一处有限公司 | Lining reinforcing steel bar scale distance ruler for inverted arch of tunnel and construction method carried out by scale distance ruler |
| CN113236295A (en) * | 2021-04-25 | 2021-08-10 | 中铁二局第二工程有限公司 | Construction method of intensive tunnel embedded channel |
-
2012
- 2012-12-14 CN CN 201220694375 patent/CN202938826U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033174A (en) * | 2012-12-14 | 2013-04-10 | 中铁隧道集团一处有限公司 | Lining reinforcing steel bar scale distance ruler for inverted arch of tunnel and construction method carried out by scale distance ruler |
| CN113236295A (en) * | 2021-04-25 | 2021-08-10 | 中铁二局第二工程有限公司 | Construction method of intensive tunnel embedded channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |