CN202814388U - Device for tunnel pipe shed support deformation testing - Google Patents
Device for tunnel pipe shed support deformation testing Download PDFInfo
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- CN202814388U CN202814388U CN2012205192220U CN201220519222U CN202814388U CN 202814388 U CN202814388 U CN 202814388U CN 2012205192220 U CN2012205192220 U CN 2012205192220U CN 201220519222 U CN201220519222 U CN 201220519222U CN 202814388 U CN202814388 U CN 202814388U
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Abstract
A device for tunnel pipe shed support deformation testing is mainly composed of an inclination testing device and a force testing device. The inclination testing device is mainly composed of an inclination-testing steel pipe, a horizontal inclination-testing pipe and a fixed pulley arranged inside one end of the horizontal inclination-testing pipe. A steel strand is arranged on the fixed pulley. An annular support is sleeved on the outer side of the horizontal inclination-testing pipe. The annular support contacts the inner wall of the inclination-testing steel pipe through a roller on the annular support. The force testing device is mainly composed of a force testing steel pipe and a steel reinforcement cage with a reinforcement meter therein. The steel reinforcement cage is arranged inside the force testing steel pipe through a push pulley on the lower part of the reinforcement cage. By arranging the horizontal inclination-testing pipe, the device provided by the utility model enables a horizontal inclination-testing instrument to move along the horizontal inclination-testing pipe to determine the inclination of a tunnel pipe shed support. The aim of monitoring the deformation of a tunnel vault in a real-time manner is thus achieved. By arranging the reinforcement meter inside the steel pipe, the device can test the internal force of the steel pipe through the reinforcement meter and indirectly reflect the pipe shed conditions varying with the changes of tunnel constructions. The device provided by the utility model has a simple practical structure and is convenient to operate, popularize and apply.
Description
Technical field
The utility model relates to the monitoring device in the constructing tunnel process, and a kind of device for tunneltron canopy Support Deformation test specifically is mainly used in the deflection and internal force test of pipe shed support in the tunnel excavation process.
Background technology
For alleviating the pressure of traffic, realize the crossings on different level of driving, need under busy highway, railway and existing building, build the tunnel.Method for tunnel construction is subject to the impact of the factors such as surface structures, urban transportation, hydrogeology, environmental protection, construction tool, and shallow burial hidden digging is with the characteristics of its strong adaptability, good economy performance, widespread use in constructing tunnel.But adopt the tunnel of shallow burial hidden digging construction, upper cover layer is thinner, and wall rock condition is usually relatively poor, and construction safety risk is very large; And Shed-pipe Advanced Support can be grown distance to reinforce stratum, bored tunnel arch as a kind of support system, for constructing tunnel has been created advantage, has improved degree of safety.
Pipe shed support is by squeezing into steel pipe and slip casting in the country rock in country rock, reduce soil body voidage, increase the packing of soil, make pipe canopy, slurries and soil body acting in conjunction, safeguard the globality of surrounding rock structure, improve the physical strength of country rock, transfer the self-supporting ability of weak surrounding rock, make it suppress timely and effectively the distortion of country rock.Pipe shed support is in stable excavation country rock, also produced corresponding distortion, by this distortion is tested, the test result of comprehensive ground settlement, vault sinking and perimeter convergence, can form complete pipe shed support Assessment of Surrounding Rock Stability system, stressed and the deformation of Real-Time Monitoring pipe shed support country rock increases the security of constructing tunnel greatly.
The utility model content
In order to solve the monitoring problem of pipe shed support distortion in the constructing tunnel, the utility model provides a kind of device for the test of tunneltron canopy Support Deformation.
The utility model is that the technical scheme that solves the problems of the technologies described above employing is: a kind of device for the test of tunneltron canopy Support Deformation, mainly consisted of by inclination measurement device and device for measuring force, described inclination measurement device mainly is comprised of deviational survey steel pipe, horizontal inclinometer pipe and the fixed block that is arranged on an end in the horizontal inclinometer pipe, described fixed block is provided with steel strand wires, described horizontal inclinometer pipe exterior ring cap has ring support, and ring support contacts with the inwall of deviational survey steel pipe by the roller which is provided with; Described device for measuring force mainly is made of dynamometry steel pipe and the inner steel reinforcement cage that is provided with reinforcing rib meter, and steel reinforcement cage is arranged in the dynamometry steel pipe by the propelling movement pulley of its underpart; The adjacent tunnel vault that is arranged on the dynamometry steel pipe of described deviational survey steel pipe;
Described reinforcing rib meter is vertically welded on the inwall of steel reinforcement cage by connecting reinforcement;
Described fixed block is fixed on a end in the horizontal inclinometer pipe by iron wire and steel plate;
Described horizontal inclinometer pipe and ring support are interference fit, and fixing by the iron wire binding between the two.
In the utility model, described horizontal inclinometer pipe external diameter is less than the ring support internal diameter, and the ring support external diameter should be less than the deviational survey pipe diameter, and the steel reinforcement cage external diameter is less than the dynamometry pipe diameter.
Utilize the method for described deformation test device to test tunneltron canopy Support Deformation, may further comprise the steps:
One end of step 2, the steel strand wires in inclination measurement device arranges horizontal inclinometer, the other end is walked around fixed block and is exposed outside, spurring exposed steel strand wires makes horizontal inclinometer move inward along the inwall of deviational survey steel pipe, reading every a horizontal inclinometer of half meter record, when treating that horizontal inclinometer moves to deviational survey steel pipe bottom, the turnover direction of exchange horizontal inclinometer and steel strand wires still spurs steel strand wires, and every half meter reading that records a horizontal inclinometer;
Step 3, two data that record of same position in the deviational survey steel pipe are averaged as the amount of taper of this position, be converted into sag curve on the deviational survey steel pipe length direction by the amount of taper with whole deviational survey steel pipe diverse location of converting, and judge the deformation of tunnel pipe shed support by this sag curve;
Step 4, by the processing of the reinforcing rib meter reading that arranges in the device for measuring force being judged pipe canopy internal force is with the situation of change of constructing tunnel.
Principle of work of the present utility model is:
By arranging reinforcing rib meter in the horizontal inclinometer pipe of layout in the tunnel vault steel pipe and the adjacent steel pipe, measure amount of deflection and the stressing conditions of steel pipe, analyze distortion and the mechanical behavior of pipe shed support in the tunnel excavation process.One end of the steel strand wires by fixed block is connected with horizontal inclinometer, and the other end is exposed outside; Pull out exposed steel strand wires along horizontal inclinometer pipe, so that horizontal inclinometer moves inward along horizontal inclinometer pipe, record a secondary data every half meter; After tiltmeter slides into horizontal inclinometer pipe bottom, exchange tiltmeter and exposed line turnover direction still every half meter record one secondary data, are averaged to two secondary data of same position, by certain mathematical conversion, obtain the sag curve of horizontal inclinometer pipe on whole length.For the steel pipe internal force test that reinforcing rib meter is installed, owing to be full of sand-cement slurry between steel reinforcement cage and the steel pipe, form common stress deformation body, carrying out along with tunnel excavation, reinforcing rib meter and steel pipe produce deform in same pace, by the processing to the steel bar gauge measurement data, obtain managing canopy internal force with the situation of change of constructing tunnel.
Beneficial effect: the utility model so that horizontal inclinometer can move to measure its gradient along horizontal inclinometer pipe, has reached the purpose of Real Time Monitoring tunnel vault distortion by arranging horizontal inclinometer pipe and in horizontal inclinometer pipe fixed block being set; Reinforcing rib meter is installed in steel pipe, by the test of reinforcing rib meter to steel pipe internal force, is indirectly reflected pipe canopy internal force with the situation of change of constructing tunnel, simple and practical, convenient operation and applying.
Description of drawings
Fig. 1 is that the utility model is at the scheme of installation of tunnel vault;
Fig. 2 is the structural representation of the utility model inclination measurement device;
Fig. 3 is the cut-open view of the utility model inclination measurement device;
Fig. 4 is the structural representation of the utility model device for measuring force;
Fig. 5 is the cut-open view of the utility model device for measuring force;
Reference numeral: 1, inclination measurement device, 2, device for measuring force, 1.1, the deviational survey steel pipe, 1.2, horizontal inclinometer pipe, 1.3, ring support, 1.4, roller, 1.5, fixed block, 1.6, steel strand wires, 2.1, the dynamometry steel pipe, 2.2, steel reinforcement cage, 2.3, reinforcing rib meter, 2.4, push pulley.
Embodiment
As shown in the figure, a kind of device for the test of tunneltron canopy Support Deformation, mainly consisted of by inclination measurement device 1 and device for measuring force 2, described inclination measurement device 1 is mainly by deviational survey steel pipe 1.1, horizontal inclinometer pipe 1.2 forms with the fixed block 1.5 that is arranged on ends in the horizontal inclinometer pipe 1.2, fixed block 1.5 is fixed on a end in the horizontal inclinometer pipe 1.2 by iron wire and steel plate, fixed block 1.5 is provided with steel strand wires 1.6, described horizontal inclinometer pipe 1.2 exterior ring caps have ring support 1.3, horizontal inclinometer pipe 1.2 is interference fit with ring support 1.3, and fixing by the iron wire binding between the two, ring support 1.3 contacts with the inwall of deviational survey steel pipe 1.1 by the roller 1.4 which is provided with; Described device for measuring force 2 mainly is made of dynamometry steel pipe 2.1 and the inner steel reinforcement cage 2.2 that is provided with reinforcing rib meter 2.3, reinforcing rib meter 2.3 is vertically welded in by connecting reinforcement on the inwall of steel reinforcement cage 2.2, and steel reinforcement cage 2.2 is arranged in the dynamometry steel pipe 2.1 by the propelling movement pulley 2.4 of its underpart; Described deviational survey steel pipe 1.1 and the dynamometry steel pipe 2.1 adjacent tunnel vaults that are arranged on.
After Guan Peng sets, ring support 1.3 with roller 1.4 is fixed on the horizontal inclinometer pipe 1.2, every a segment distance ring support 1.3 is set, effect is the location and conveniently pushes horizontal inclinometer pipe 1.2, in horizontal inclinometer pipe 1.2 distal-most end (bottom) fixed block 1.5 is installed, walk around fixed block 1.5 with steel strand wires 1.6 in that horizontal inclinometer pipe 1.2 is interior, in the process that horizontal inclinometer pipe 1.2 is pushed deviational survey steel pipe 1.1, answer location steel twisted wire 1.6, make the one end in the left side, one end is on the right side, purpose is to avoid steel strand wires 1.6 to be intertwined in pipe, before slip casting, use in advance the horizontal inclinometer pipe 1.2 of Anchor Agent anchoring, and after slip casting, clean horizontal inclinometer pipe 1.2 inside with clear water, prevent that grout from pouring in horizontal inclinometer pipe 1.2 and causing slurries to solidify rear filling guide groove, accurately reading.
Make in advance one with the steel reinforcement cage 2.2 that pushes pulley 2.4, reinforcing rib meter 2.3 and several sections reinforcing bars are welded to form vertical dowel, and be welded on the steel reinforcement cage 2.2, push in the dynamometry steel pipe 2.1 by pushing pulley 2.4, the steel reinforcement cage 2.2 that pushes, weld a pair of reinforcing rib meter 2.3 every a segment distance, divide the upper and lower to install, and be numbered 1,2,3 ... the survey line of element passes in the steel pipe until the mouth of pipe, with after the Anchor Agent anchoring and slip casting, then according to Tunnel Construction Schedule according to certain frequency measurement reading, in order to analyze the excavation of each one to the impact of tunnel surrounding, and estimate the supporting effect of managing canopy.
After finishing above-mentioned work, utilize these device to test tunneltron canopy Support Deformation concrete operations as follows:
Step 3, two data that record of deviational survey steel pipe 1.1 interior same positions are averaged as the amount of taper of this position, be converted into sag curve on deviational survey steel pipe 1.1 length directions by the amount of taper with whole deviational survey steel pipe 1.1 diverse locations of converting, and judge the deformation of tunnel pipe shed support by this sag curve;
Step 4, judge that by the processing to reinforcing rib meter 2.3 readings that arrange in the device for measuring force 2 pipe canopy internal force is with the situation of change of constructing tunnel.
Claims (4)
1. one kind is used for the device that tunneltron canopy Support Deformation is tested, it is characterized in that: mainly consisted of by inclination measurement device (1) and device for measuring force (2), described inclination measurement device (1) is mainly by deviational survey steel pipe (1.1), horizontal inclinometer pipe (1.2) and the fixed block (1.5) that is arranged on an end in the horizontal inclinometer pipe (1.2) form, described fixed block (1.5) is provided with steel strand wires (1.6), described horizontal inclinometer pipe (1.2) exterior ring cap has ring support (1.3), and ring support (1.3) contacts with the inwall of deviational survey steel pipe (1.1) by the roller (1.4) which is provided with; Described device for measuring force (2) mainly is provided with steel reinforcement cage (2.2) formation of reinforcing rib meter (2.3) by dynamometry steel pipe (2.1) and inside, steel reinforcement cage (2.2) is arranged in the dynamometry steel pipe (2.1) by the propelling movement pulley (2.4) of its underpart; The adjacent tunnel vault that is arranged on dynamometry steel pipe (2.1) of described deviational survey steel pipe (1.1).
2. a kind of device for tunneltron canopy Support Deformation test according to claim 1, it is characterized in that: described reinforcing rib meter (2.3) is vertically welded on the inwall of steel reinforcement cage (2.2) by connecting reinforcement.
3. a kind of device for tunneltron canopy Support Deformation test according to claim 1 is characterized in that: described fixed block (1.5) is fixed on a end in the horizontal inclinometer pipe (1.2) by iron wire and steel plate.
4. a kind of device for tunneltron canopy Support Deformation test according to claim 1, it is characterized in that: described horizontal inclinometer pipe (1.2) is interference fit with ring support (1.3), and fixing by the iron wire binding between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205192220U CN202814388U (en) | 2012-10-11 | 2012-10-11 | Device for tunnel pipe shed support deformation testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205192220U CN202814388U (en) | 2012-10-11 | 2012-10-11 | Device for tunnel pipe shed support deformation testing |
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| Publication Number | Publication Date |
|---|---|
| CN202814388U true CN202814388U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205192220U Expired - Fee Related CN202814388U (en) | 2012-10-11 | 2012-10-11 | Device for tunnel pipe shed support deformation testing |
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| Country | Link |
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| CN (1) | CN202814388U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889874A (en) * | 2012-10-11 | 2013-01-23 | 洛阳理工学院 | Device for tunnel tube-shed support deformation testing and application method thereof |
| CN107091085A (en) * | 2017-07-03 | 2017-08-25 | 招商局重庆交通科研设计院有限公司 | A kind of multi-parameter Identification method of shallow-depth-excavation tunnel formation stability |
| CN110657777A (en) * | 2019-10-18 | 2020-01-07 | 中国建筑第八工程局有限公司 | Wind tunnel body surcharge preloading deformation measurement process |
| CN112857223A (en) * | 2021-01-19 | 2021-05-28 | 吉力此且 | Optical fiber gyroscope positioning device and method for subway pipe shed positioning measurement |
-
2012
- 2012-10-11 CN CN2012205192220U patent/CN202814388U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889874A (en) * | 2012-10-11 | 2013-01-23 | 洛阳理工学院 | Device for tunnel tube-shed support deformation testing and application method thereof |
| CN102889874B (en) * | 2012-10-11 | 2015-04-22 | 洛阳理工学院 | Device for tunnel tube-shed support deformation testing and application method thereof |
| CN107091085A (en) * | 2017-07-03 | 2017-08-25 | 招商局重庆交通科研设计院有限公司 | A kind of multi-parameter Identification method of shallow-depth-excavation tunnel formation stability |
| CN107091085B (en) * | 2017-07-03 | 2020-07-07 | 招商局重庆交通科研设计院有限公司 | Multi-parameter discrimination method for stratum stability of shallow-buried and underground-excavated tunnel |
| CN110657777A (en) * | 2019-10-18 | 2020-01-07 | 中国建筑第八工程局有限公司 | Wind tunnel body surcharge preloading deformation measurement process |
| CN112857223A (en) * | 2021-01-19 | 2021-05-28 | 吉力此且 | Optical fiber gyroscope positioning device and method for subway pipe shed positioning measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY Effective date: 20130508 Owner name: CHINA RAILWAY 15 BUREAU GROUP CORPORATION Free format text: FORMER OWNER: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY Effective date: 20130508 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 471000 LUOYANG, HENAN PROVINCE TO: 471002 LUOYANG, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130508 Address after: 471002 No. four hospital No. 2, Henan, Luoyang Patentee after: China Railway 15 Bureau Group Corporation Patentee after: Luoyang Institute Of Science And Technology Address before: Jianxi District of Henan city of Luoyang Province, nine 471000 West Road No. 71 Patentee before: Luoyang Institute Of Science And Technology |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20131011 |