CN209400326U - A kind of shield tunnel screwed joint tensile property multifunction test device - Google Patents
A kind of shield tunnel screwed joint tensile property multifunction test device Download PDFInfo
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- CN209400326U CN209400326U CN201822183162.XU CN201822183162U CN209400326U CN 209400326 U CN209400326 U CN 209400326U CN 201822183162 U CN201822183162 U CN 201822183162U CN 209400326 U CN209400326 U CN 209400326U
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Abstract
The utility model discloses a kind of shield tunnel screwed joint tensile property multifunction test devices, including variable-angle reaction frame；Variable-angle reaction frame includes the identical load support of two structures and the load panel between two load supports, and load support is placed on the joint face of test section of jurisdiction；Load support is equipped with rotational positioning hole and arc-shaped sliding slot, and rotational positioning hole is set to the corresponding center location of sliding slot；The end of load panel is equipped with the first screw rod and the second screw rod, and the first screw rod is by the first nut locking position behind rotational positioning hole, and for the second screw rod by the second nut locking position after sliding slot, load panel can be that shaft is rotated around sliding slot using the first screw rod；The center of load panel is equipped with the through-hole passed through for track bolt；It further include having for providing the load jack of pulling capacity.The utility model is suitble under complex environment carry out various forms of segment bolt connectors fast and efficiently anti-pull-out property test.
Description
Technical field
The utility model relates to a kind of tensile property experimental rigs, and in particular to arrive a kind of shield tunnel screwed joint tension
Performance and multifunctional experimental rig.
Background technique
With Urbanization Process In China accelerate promote and shield technique it is increasingly mature, it is more next that tunnel is built using shield method
It is applied to city underground, municipal project more, the engineerings such as more river is over strait, the environmental condition to become increasingly complex is to shield tunnel
More stringent requirements are proposed for construction.Since shield tunnel is a kind of fabricated construction made of being bolted as section of jurisdiction, greatly
Quantifier elimination shows that shield tunnel connector is the weak part of total stress and deformation.When shield tunnel is by earthquake, vertical
When being influenced to factors such as stratum deformation, construction loads, SEA LEVEL VARIATIONs, it may occur that linear deformation, and tunnel linear deformation is usually right
Tunnel structure is very unfavorable, and after linear deformation or Deformation Curvature reach certain magnitude, circumferential weld opening may occur for tunnel,
It will cause landing edge tensile failure when serious；And buried outlet tunnel is under full water state, connector axle power reduces, and moment of flexure increases
Greatly, the problem on deformation of girth joint is equally prominent.Its stress characteristic is studied it is generally necessary to implement duct piece connector test.
Mainly there are duct piece connector test and the test of the lining cutting domain etc. for the experimental study of shield tunnel at present.Duct piece connector
Test is for studying rigidity effective percentage, seam subtended angle etc.；Lining cutting domain full scale test be mainly used for study tunnel total bearing capacity,
Deformation characteristic, moment of flexure transmitting, seam corner, fire resistance characteristic and fractue spacing and structure failure mode etc..Both the above test is ground
Study carefully and the mechanical characteristic and destructive characteristics of connector detail structure are related to less, and the test period is long, experimental condition requires high, examination
It tests that the device is complicated, cost is high, efficiently, rapidly the tensile property of duct piece connector can not be studied.
For shield tunnel screwed joint, common joint form has straight bolt, curved bolt and oblique bolt, in order to study spiral shell
Characteristic of the cotter joint under operation state needs butt joint test along the tensile property in segment joint face exterior normal direction.
Meanwhile for oblique bolt, according to design requirement, needs the breakout capacity covered to pre-embedded bolt to test, therefore need butt joint
Tested along the tensile property of bolt axial direction.There has been no experimental rigs at present can be simultaneously to different bolt patterns, different drawings
Operating condition is simulated.
Utility model content
The utility model provides a kind of shield tunnel screwed joint tensile property multifunction test device, for difference
The shield tunnel screwed joint of joint form carries out axial along bolt and carries out tensile property along segment joint face exterior normal direction
Test.
In order to solve the above technical problems, the technology employed by the present utility model is
A kind of shield tunnel screwed joint tensile property multifunction test device, including variable-angle reaction frame；Variable angle
Spending reaction frame includes the identical load support of two structures and the load panel between two load supports, load support
It is placed on the joint face of test section of jurisdiction；Load support is equipped with rotational positioning hole and arc-shaped sliding slot, and rotational positioning hole is set
In the corresponding center location of sliding slot；The end of load panel is equipped with the first screw rod and the second screw rod, and it is fixed that the first screw rod passes through rotation
By the first nut locking position behind the hole of position, the second screw rod is passed through after sliding slot by the second nut locking position, and load panel can be with the
One screw rod is that shaft is rotated around sliding slot；The center of load panel is equipped with the through-hole passed through for track bolt；It further include having for mentioning
For the load jack of pulling capacity.
According to above scheme, the load jack is hollow jack；Track bolt sequentially pass through load jack and
Pre-buried bolt sleeve is connect after load panel and in test section of jurisdiction.
It further, further include having washer；Track bolt sequentially pass through washer, load jack, after load panel with examination
Test bolt sleeve connection pre-buried in section of jurisdiction.
It further include having load backing plate, the load support of the variable-angle reaction frame is fixedly connected on according to above scheme
The top of load backing plate；The bottom of load backing plate is connected on the joint face of test section of jurisdiction by loading jack, load backing plate
It is equipped with the through-hole passed through for track bolt；Track bolt sequentially pass through after load panel and load backing plate with it is pre- in test section of jurisdiction
The bolt sleeve connection buried.
It further, further include having washer；Track bolt sequentially pass through after washer, load panel, load backing plate with test
Pre-buried bolt sleeve connection in section of jurisdiction.
Compared with prior art, the utility model has the beneficial effects that structure is simple, cheap, quick detachable, transporter
Just, it is suitble to carry out fast and efficiently anti-pull-out property test to various forms of segment bolt connectors under complex environment；It avoids trying
Test the cutting, double teeming that section of jurisdiction is put into large-scale duct piece connector load test system and the work such as build, install, debugging, dismantling, save at
This, improves test efficiency；Variable-angle reaction frame load-carrying surface angle adjustable adapts to oblique bolt, the straight bolt of different angle
With curved screwed joint etc., and the combination of variable-angle reaction frame and jack multiplicity, it can both realize and large-scale duct piece connector
The consistent drawing operating condition along joint face exterior normal direction of loading system, can also realize that large-scale duct piece connector loading system can not be complete
At the drawing operating condition along bolt axial direction, detect sleeve tensile strength.
Detailed description of the invention
Fig. 1 is structural schematic diagram when the utility model axially carries out pull-out test along bolt for oblique screwed joint；
Fig. 2 is the structural representation that the utility model carries out drawing for oblique screwed joint along segment joint face exterior normal direction
Figure；
Fig. 3 is structural schematic diagram when the utility model carries out pull-out test for straight screwed joint；
Fig. 4 is structural schematic diagram when the utility model carries out pull-out test for curved screwed joint；
Fig. 5 is the structural schematic diagram of the variable-angle reaction frame in the utility model.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing, the paraphrase of each label in figure
Are as follows: test section of jurisdiction 1, track bolt 2, variable-angle reaction frame 3, washer 4, load jack 5, load backing plate 6, joint face 10,
Hand hole 11, load panel 31, load support 32.
The utility model includes variable-angle reaction frame 3 and load jack 5.Variable-angle reaction frame 3 includes two and holds
Power support 32 and the load panel 31 between two load supports 32.Load support 32 is equipped with rotational positioning hole and circle
The sliding slot of arc, rotational positioning hole are set to the corresponding center location of sliding slot.The end of load panel 31 is equipped with the first screw rod and the
Two screw rods, the first screw rod is by the first nut locking position behind rotational positioning hole, and the second screw rod is after sliding slot by the second spiral shell
Female latched position, load panel 31 can be rotated using the first screw rod as shaft around sliding slot.The center of load panel 31 is equipped with for connector
The through-hole that bolt 2 passes through.Load jack 5 is hollow jack.
Tensile property test for different types of track bolt 2, the utility model have different assembling modes:
1, for oblique screwed joint form
1., along bolt axially carry out pull-out test operating condition
The load support 32 of variable-angle reaction frame 3 is placed on the joint face 10 of test section of jurisdiction 1, according to inclining for oblique bolt
Rake angle rotates load panel 31, makes bolt hole face load panel 31 to be measured, oblique screw bolt passes washer on joint face 10
4, it is connect after loading jack 5, load panel 31 with bolt sleeve pre-buried in test section of jurisdiction 1.
2., along segment joint face exterior normal direction carry out drawing operating condition
This operating condition needs to use load backing plate 6.The load support 31 of variable-angle reaction frame 3 is fixedly connected on load backing plate
6 top, the bottom of load backing plate 6 is connected on the joint face 10 of test section of jurisdiction 1 by loading jack 5, on load backing plate 6
Equipped with the through-hole passed through for track bolt 2.Load panel 31 is rotated according to the tilt angle of oblique bolt, is made to be measured on joint face 10
Bolt hole face load panel 31, after oblique screw bolt passes washer 4, load panel 31, load backing plate 6 and in test section of jurisdiction 1
Pre-buried bolt sleeve connection.
2, for straight screwed joint form
The load support 32 of variable-angle reaction frame 3 is placed on the joint face 10 of test section of jurisdiction 1, adjusts load panel 31
Angle is allowed to be in a horizontal position, and makes bolt hole face load panel 31 to be measured, straight screw bolt passes washer on joint face 10
4, it is connect after loading jack 5, load panel 31 with bolt sleeve pre-buried in test section of jurisdiction 1.
3, for curved screwed joint form
This operating condition needs to use load backing plate 6.The load support 31 of variable-angle reaction frame 3 is fixedly connected on load backing plate
6 top, the bottom of load backing plate 6 is connected on the joint face 10 of test section of jurisdiction 1 by loading jack 5, on load backing plate 6
Equipped with the through-hole passed through for track bolt 2.Load panel 31 is rotated according to the tilt angle of curved bolt end, makes curved bolt end
Axis is parallel with the exterior normal of load panel 31, after curved screw bolt passes washer 4, load panel 31, load backing plate 6 with test
Pre-buried bolt sleeve connection in section of jurisdiction 1.
Claims (5)
1. a kind of shield tunnel screwed joint tensile property multifunction test device, it is characterised in that: including variable-angle counter-force
Frame (3)；Variable-angle reaction frame (3) is including the identical load support (32) of two structures and is located at two load supports (32)
Between load panel (31), load support (32) be placed in test section of jurisdiction (1) joint face (10) on；On load support (32)
Equipped with rotational positioning hole and arc-shaped sliding slot, rotational positioning hole is set to the corresponding center location of sliding slot；Load panel (31)
End is equipped with the first screw rod and the second screw rod, and the first screw rod is behind rotational positioning hole by the first nut locking position, the second spiral shell
For bar by the second nut locking position after sliding slot, load panel (31) can be that shaft is rotated around sliding slot using the first screw rod；Load
The center of panel (31) is equipped with the through-hole passed through for track bolt (2)；It further include having for providing the load jack of pulling capacity
(5)。
2. a kind of shield tunnel screwed joint tensile property multifunction test device according to claim 1, feature exist
In: the load jack (5) is hollow jack；Track bolt (2) sequentially passes through load jack (5) and load panel
(31) it is connect afterwards with bolt sleeve pre-buried in test section of jurisdiction (1).
3. a kind of shield tunnel screwed joint tensile property multifunction test device according to claim 2, feature exist
In: it further include having washer (4)；Track bolt (2) sequentially pass through washer (4), load jack (5), load panel (31) afterwards with
Test bolt sleeve connection pre-buried in section of jurisdiction (1).
4. a kind of shield tunnel screwed joint tensile property multifunction test device according to claim 1, feature exist
In: it further include having load backing plate (6), the load support (32) of the variable-angle reaction frame (3) is fixedly connected on load backing plate
(6) top；The bottom of load backing plate (6) is connected on the joint face (10) of test section of jurisdiction (1) by loading jack (5),
Load backing plate (6) is equipped with the through-hole passed through for track bolt (2)；Track bolt (2) sequentially passes through load panel (31) and holds
Power backing plate (6) is connect with bolt sleeve pre-buried in test section of jurisdiction (1) afterwards.
5. a kind of shield tunnel screwed joint tensile property multifunction test device according to claim 4, feature exist
In: it further include having washer (4)；Track bolt (2) sequentially pass through washer (4), load panel (31), load backing plate (6) afterwards with examination
Test bolt sleeve connection pre-buried in section of jurisdiction (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822183162.XU CN209400326U (en) | 2018-12-25 | 2018-12-25 | A kind of shield tunnel screwed joint tensile property multifunction test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822183162.XU CN209400326U (en) | 2018-12-25 | 2018-12-25 | A kind of shield tunnel screwed joint tensile property multifunction test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209400326U true CN209400326U (en) | 2019-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822183162.XU Expired - Fee Related CN209400326U (en) | 2018-12-25 | 2018-12-25 | A kind of shield tunnel screwed joint tensile property multifunction test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209400326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520839A (en) * | 2018-12-25 | 2019-03-26 | 西南交通大学 | A kind of shield tunnel screwed joint tensile property multifunction test device |
-
2018
- 2018-12-25 CN CN201822183162.XU patent/CN209400326U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520839A (en) * | 2018-12-25 | 2019-03-26 | 西南交通大学 | A kind of shield tunnel screwed joint tensile property multifunction test device |
| CN109520839B (en) * | 2018-12-25 | 2023-12-15 | 西南交通大学 | Multifunctional test method for tensile property of shield tunnel bolt joint |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20201225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |