CN104949824A - Shield tunnel segment connector mechanical property test device - Google Patents
Shield tunnel segment connector mechanical property test device Download PDFInfo
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- CN104949824A CN104949824A CN201510289427.2A CN201510289427A CN104949824A CN 104949824 A CN104949824 A CN 104949824A CN 201510289427 A CN201510289427 A CN 201510289427A CN 104949824 A CN104949824 A CN 104949824A
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- face
- joint
- reaction frame
- abutment face
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Abstract
The invention provides a shield tunnel segment connector mechanical property test device. The shield tunnel segment connector mechanical property test device comprises a reaction frame, a shield segment, a first support, a second support, a first force applying part and a second force applying part, wherein the shield segment is disposed in the reaction frame and comprises a first connector face and a second connector face; the first support comprises a first abutting face and a second abutting face, the first abutting face is abutted against the reaction frame, and the second abutting face is connected to the first connector face; the second support comprises a third abutting face and a fourth abutting face, and the third abutting face is connected to the second connector face; the first force applying part is abutted against a position between the reaction frame and the shield segment and used for applying radial axial pressure to the shield segment; the second force applying part is abutted against a position between the second support and the fourth abutting face and used for applying circumferential axial pressure, with set eccentric distance, to the shield segment. By the shield tunnel segment connector mechanical property test device, tunnel connector mechanical behaviors are simulated vividly according to actual conditions to increase test data accuracy.
Description
Technical field
The present invention relates to a kind of duct pieces of shield tunnel test unit, be specifically related to a kind of shield tunnel segment joint mechanical property test device.
Background technology
In Tunnel Engineering, the prototype stock size of Practical Project and structure is more greatly and comparatively complicated, its mechanical property and force-mechanism often cannot by directly studying structure and obtaining, and model test must be adopted, that is: by means of model, test according to the principle of similitude and similarity criterion, thus obtain every data and the performance of structure, for the design in tunnel and construction provide test basis.Tunnel structure is owing to there is joint in structure and the reason such as operating technique in construction, and the connected mode of tunnel joint has multiple, and what usually adopt has screwed joint, without web member joint, inserted sleeve, pin plug type joint and some other type of attachment.Duct piece connector is the weak part in tunnel, obtains its basic stress performance and ultimate bearing capacity, just seem particularly important by test.
Tunnel duct piece can produce hoop axial pressure and moment of flexure under the effect of outside Water And Earth Pressures; usually can as shown in Figure 1 when duct piece connector mechanical property is tested, carrying out loading eccentric throw to test specimen two ends is that the load F of X is to simulate the situation that jointing place is subject to axle power and Moment.But, shield duct piece 5 often has certain radian, during by shield duct piece 5 two ends load test power, comparatively be difficult to ensure that the eccentric throw X of card butt junction place kernel of section is an ideal value, cause the actual loading situation testing load condition and shield duct piece 5 joint to there is certain deviation, thus affect the fiduciary level of test findings.
Summary of the invention
For overcoming the defect existing for prior art, a kind of shield tunnel segment joint mechanical property test device being now provided, in the light of actual conditions simulating the mechanical behavior of tunnel joint visually, to increase the accuracy of test figure.
For achieving the above object, the invention provides a kind of shield tunnel segment joint mechanical property test device, comprising:
Reaction frame;
Shield duct piece, to be arranged in reaction frame and to comprise the first joint face and the second joint face;
First bearing, comprise the first abutment face and the second abutment face, the first abutment face is resisted against reaction frame, and the second abutment face is connected to the first joint face;
Second bearing, comprise the 3rd abutment face and the 4th abutment face, the 3rd abutment face is connected to the second joint face;
First force-applying piece, is resisted against between reaction frame and shield duct piece, for applying radial axle pressure to shield duct piece;
Second force-applying piece, is resisted against between reaction frame and the 4th abutment face of the second bearing, for applying the hoop axial pressure with setting eccentric throw to shield duct piece.
The beneficial effect of shield tunnel segment joint mechanical property test device of the present invention is,
By the transition of the second bearing, the second force-applying piece being resisted against reaction frame is made to apply hoop axial pressure to shield duct piece exactly, simulate the mechanical behavior of tunnel joint visually, more accurately to reflect the stressing conditions of tunnel lining structure joint in Practical Project truly, and then make test figure more accurate.
Preferably, the first bearing is connected to the inwall of reaction frame by Connection Block.
Preferably, Connection Block comprises the first web joint and second web joint of corresponding splicing, and the first web joint to be anchored on reaction frame and to have notch, and the second web joint and the first abutment face are fastenedly connected, second web joint has projection, and protruding corresponding inserted is in notch.
Preferably, the second abutment face and the 3rd abutment face are provided with draw-in groove, and the first joint face and the second joint face are arranged in draw-in groove respectively, and some standing screws are through draw-in groove and then fastening shield duct piece.
Preferably, the first joint face and the second joint face are inclined end face, and the second abutment face is connected with the first joint face adaptation, and the 3rd abutment face is connected with the second joint face adaptation.
Preferably, the first force-applying piece and the second force-applying piece are lifting jack, and shield duct piece is arc.
Preferably, jacking bracket is installed with between the second force-applying piece and the inwall of reaction frame.
Accompanying drawing explanation
View when Fig. 1 is shield duct piece load test power;
Fig. 2 is the schematic top plan view of not installing shield duct piece in shield duct piece test unit of the present invention;
Fig. 3 is the structural representation of single bearing in Fig. 2;
Fig. 4 is the schematic top plan view being provided with shield duct piece in shield duct piece test unit of the present invention;
Fig. 5 is the cross-sectional structure schematic diagram of the first web joint in Fig. 4;
Fig. 6 is the plan structure schematic diagram corresponding to Fig. 5;
Fig. 7 is the cross-sectional structure schematic diagram of the second web joint in Fig. 4;
Fig. 8 is the plan structure schematic diagram corresponding to Fig. 7.
Embodiment
For the benefit of to the understanding of structure of the present invention, be described below in conjunction with drawings and Examples.
With reference to Fig. 1, it is view during shield duct piece load test power.With reference to Fig. 2, for not installing the schematic top plan view of shield duct piece in shield tunnel segment joint test unit of the present invention.
Shown in composition graphs 1 and Fig. 2, the invention provides a kind of shield tunnel segment joint mechanical property test device, comprising: the reaction frame 100 that four sides encloses; Be resisted against the first force-applying piece 1 of this reaction frame 100 inner left wall, for applying radial axle pressure to shield duct piece 5 () in figure from left to right; Be resisted against the second force-applying piece 2 of inwall on the downside of this reaction frame 100, for applying the hoop axial pressure F with setting eccentric throw X to shield duct piece 5 () in figure from bottom to top; First bearing 3, comprise the first abutment face and the second abutment face, the first abutment face is resisted against the upper inside walls of reaction frame 100, and the second abutment face is for connecting the first joint face of shield duct piece 5; Second bearing 4, comprises the 3rd abutment face and the 4th abutment face, and the 3rd abutment face is for connecting the second joint face of shield duct piece 5, and the 4th abutment face is resisted against the top of the second force-applying piece 2.
Comparatively preferably, the first above-mentioned force-applying piece 1 and the second force-applying piece 2 are lifting jack, and be installed with jacking bracket 6 between the second force-applying piece 2 and the inwall of reaction frame 100, the second force-applying piece 2 is resisted against this jacking bracket 6.
With reference to Fig. 3, it is the structural representation of bearing single in Fig. 2.As shown in Figure 3, the second abutment face of the first bearing 3 and the 3rd abutment face of the second bearing 4 are inclined end face, are connected for the first joint face and the second joint face adaptation of shield duct piece 5.
With reference to Fig. 4, for being provided with the schematic top plan view of shield duct piece in shield tunnel segment joint test unit of the present invention.Shown in composition graphs 1 and Fig. 4, be arranged in reaction frame 100 by the shield duct piece 5 of one piece of arc, this shield duct piece 5 includes the first joint face and the second joint face that are positioned at reaction frame about 100 both sides; Second abutment face of the first bearing 3 and the 3rd abutment face of the second bearing 4 are provided with draw-in groove, and the two joint faces up and down of shield duct piece 5 are arranged in draw-in groove respectively, and some standing screws 7 are through draw-in groove and then fastening shield duct piece 5.Wherein, the arcwall face of this shield duct piece 5 protrudes out left, and the second force-applying piece 2 corresponds to the eccentric throw X of shield duct piece 5.
Comparatively preferably, first bearing 3 is connected to the inwall of reaction frame 100 by a Connection Block 8, this Connection Block 8 specifically comprises the first web joint 80 and the second web joint 82 of corresponding splicing, first web joint 80 bolted is on reaction frame 100, first abutment face bolted of the second web joint 82 and the first bearing 3, locates the first bearing 3 in this way.
With reference to shown in Fig. 5 to Fig. 8, the first web joint 80 has on notch 802, second web joint 82 for splicing and have protruding 822, these protruding 822 corresponding inserted, in above-mentioned notch 802, pass through spacing second web joint 82 of the first web joint 80 with this.
After having said structure feature, shown in composition graphs 2 to Fig. 8, the present invention can implement by following process:
A. make the first web joint 80 and the second web joint 82 on request, by the first web joint 80 bolted in the upper inside walls of reaction frame 100, the second web joint 82 is plugged together with the first web joint 80 and is connected;
B. by the second web joint 82 and the first bearing 3 bolted;
C. correspond to the installation site of the first bearing 3, be symmetrical arranged the second bearing 4 up and down;
D. lift one piece of shield duct piece 5, by standing screw 7, the two joint faces up and down of shield duct piece 5 are individually fixed on the draw-in groove of the first bearing 3 and the second bearing 4;
E. correspond to the arcwall face of shield duct piece 5, the first force-applying piece 1 is oppositely withstood the stitching portion of shield duct piece 5 on the inwall being fixed on reaction frame 100;
F. correspond to the position of the eccentric throw X of shield duct piece 5, by jacking bracket 6, the second force-applying piece 2 is also oppositely withstood the second bearing 4 against the downside inwall being anchored on reaction frame 100.
G. start the first force-applying piece 1 and the second force-applying piece 2, the radial axle pressure applying from left to right by the first force-applying piece 1 pair of shield duct piece 5, the hoop axial pressure F applying from the bottom up by the second force-applying piece 2 pairs of shield duct pieces 5 simultaneously.
With this, obtain accurate test figure.
After completing above-mentioned implementation process, following characteristics of the present invention should be able to be embodied:
This device is utilized to carry out loading and more accurately can simulate the stressing conditions of tunnel lining structure joint stiffness in Practical Project truly, the mechanical behavior of tunnel joint in more realistic engineering, thus make its experimental test data more accurately, reliable, can for the design of Tunnel Engineering, construction and maintenance provides accurately, reliable test basis.
Below embodiment is to invention has been detailed description by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thus, some details in embodiment should not form limitation of the invention, the present invention by the scope that defines using appended claims as protection domain.
Claims (7)
1. a shield tunnel segment joint mechanical property test device, is characterized in that, comprising:
Reaction frame;
Shield duct piece, to be arranged in described reaction frame and to comprise the first joint face and the second joint face;
First bearing, comprises the first abutment face and the second abutment face, and described first abutment face is resisted against described reaction frame, and described second abutment face is connected to described first joint face;
Second bearing, comprises the 3rd abutment face and the 4th abutment face, and described 3rd abutment face is connected to described second joint face;
First force-applying piece, is resisted against between described reaction frame and described shield duct piece, for applying radial axle pressure to described shield duct piece;
Second force-applying piece, is resisted against between described reaction frame and the 4th abutment face of described second bearing, for applying the hoop axial pressure with setting eccentric throw to described shield duct piece.
2. test unit according to claim 1, is characterized in that,
Described first bearing is connected to the inwall of described reaction frame by Connection Block.
3. test unit according to claim 2, is characterized in that,
Described Connection Block comprises the first web joint and second web joint of corresponding splicing, described first web joint to be anchored on described reaction frame and to have notch, described second web joint and described first abutment face are fastenedly connected, described second web joint has projection, and described protruding corresponding inserted is in described notch.
4. test unit according to claim 1, is characterized in that,
Described second abutment face and described 3rd abutment face are provided with draw-in groove, and described first joint face and described second joint face are arranged in described draw-in groove respectively, and some standing screws are through described draw-in groove and then fastening described shield duct piece.
5. test unit according to claim 1, is characterized in that,
Described first joint face and described second joint face are inclined end face, and described second abutment face is connected with described first joint face adaptation, and described 3rd abutment face is connected with described second joint face adaptation.
6. test unit as claimed in any of claims 1 to 5, is characterized in that,
Described first force-applying piece and described second force-applying piece are lifting jack, and described shield duct piece is arc.
7. test unit according to claim 6, is characterized in that,
Jacking bracket is installed with between described second force-applying piece and the inwall of described reaction frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510289427.2A CN104949824A (en) | 2015-05-29 | 2015-05-29 | Shield tunnel segment connector mechanical property test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510289427.2A CN104949824A (en) | 2015-05-29 | 2015-05-29 | Shield tunnel segment connector mechanical property test device |
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| CN104949824A true CN104949824A (en) | 2015-09-30 |
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| CN201510289427.2A Pending CN104949824A (en) | 2015-05-29 | 2015-05-29 | Shield tunnel segment connector mechanical property test device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840915A (en) * | 2017-02-04 | 2017-06-13 | 上海盾构设计试验研究中心有限公司 | A kind of beam test device and method of duct piece connector |
| CN107356382A (en) * | 2017-06-22 | 2017-11-17 | 上海隧道工程有限公司 | A kind of section of jurisdiction mechanical testing equipment |
| CN108195664A (en) * | 2017-12-26 | 2018-06-22 | 上海隧道工程有限公司 | Duct pieces of shield tunnel seam mechanical property multifunction test device |
| CN108426706A (en) * | 2018-02-02 | 2018-08-21 | 西南交通大学 | A kind of high hydraulic pressure area shield formula TBM Segments Design test-beds |
| CN109520838A (en) * | 2018-12-25 | 2019-03-26 | 西南交通大学 | A kind of shield tunnel screwed joint tensile property experimental rig |
| CN113155374A (en) * | 2021-05-20 | 2021-07-23 | 中铁工程装备集团有限公司 | Main drive sealing experiment table of heading machine and application method thereof |
| CN114252345A (en) * | 2021-11-25 | 2022-03-29 | 中国建筑第八工程局有限公司 | Performance detection device and detection method for ground connecting wall milling joint |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840915B (en) * | 2017-02-04 | 2019-06-14 | 上海盾构设计试验研究中心有限公司 | A kind of beam test device and method of duct piece connector |
| CN106840915A (en) * | 2017-02-04 | 2017-06-13 | 上海盾构设计试验研究中心有限公司 | A kind of beam test device and method of duct piece connector |
| CN107356382A (en) * | 2017-06-22 | 2017-11-17 | 上海隧道工程有限公司 | A kind of section of jurisdiction mechanical testing equipment |
| CN108195664A (en) * | 2017-12-26 | 2018-06-22 | 上海隧道工程有限公司 | Duct pieces of shield tunnel seam mechanical property multifunction test device |
| CN108195664B (en) * | 2017-12-26 | 2020-09-15 | 上海隧道工程有限公司 | Multifunctional mechanical property testing device for shield tunnel segment joints |
| CN108426706A (en) * | 2018-02-02 | 2018-08-21 | 西南交通大学 | A kind of high hydraulic pressure area shield formula TBM Segments Design test-beds |
| CN108426706B (en) * | 2018-02-02 | 2023-10-17 | 西南交通大学 | Shield type TBM tunnel segment design test bench for high water pressure area |
| CN109520838A (en) * | 2018-12-25 | 2019-03-26 | 西南交通大学 | A kind of shield tunnel screwed joint tensile property experimental rig |
| CN109520838B (en) * | 2018-12-25 | 2023-12-15 | 西南交通大学 | Tensile property test device for shield tunnel bolt joint |
| CN113155374A (en) * | 2021-05-20 | 2021-07-23 | 中铁工程装备集团有限公司 | Main drive sealing experiment table of heading machine and application method thereof |
| CN113155374B (en) * | 2021-05-20 | 2024-05-10 | 中铁工程装备集团有限公司 | Main driving sealing experiment table of heading machine and application method thereof |
| CN114252345A (en) * | 2021-11-25 | 2022-03-29 | 中国建筑第八工程局有限公司 | Performance detection device and detection method for ground connecting wall milling joint |
| CN114252345B (en) * | 2021-11-25 | 2024-02-06 | 中国建筑第八工程局有限公司 | Performance detection device and detection method for ground continuous wall milling joint |
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Application publication date: 20150930 |