CN210981122U - Splicing detection test bed for tunnel segments - Google Patents
Splicing detection test bed for tunnel segments Download PDFInfo
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- CN210981122U CN210981122U CN201922276988.5U CN201922276988U CN210981122U CN 210981122 U CN210981122 U CN 210981122U CN 201922276988 U CN201922276988 U CN 201922276988U CN 210981122 U CN210981122 U CN 210981122U
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- lifting platform
- rotary lifting
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- concrete base
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Abstract
A splicing detection test bed for tunnel segments comprises a steel protection cage, a concrete base and a rotary lifting platform which are coaxially and fixedly arranged on the ground, wherein the rotary lifting platform is positioned at an axis position, the outer part of the rotary lifting platform is provided with an annular concrete base, and the outer part of the concrete base is provided with an annular steel protection cage with an opening at the top; a plurality of hydraulic cylinders are axially and fixedly arranged at the top of the concrete base; the top of the rotary lifting platform is horizontally rotated and vertically lifted and provided with a horizontal support for detecting the inner radian of the pipe piece. The detection test bed can be used for radian detection and splicing interface goodness of fit detection of a plurality of segments spliced into a ring, the segment supporting height and the detection height of the detection platform can be adjusted, and the detection test bed is simple in structure and easy to realize.
Description
Technical Field
The utility model relates to a detect technical field, concretely relates to tunnel segment's concatenation test bench.
Background
The shield segment is a main assembly component for shield construction, is the innermost barrier of the tunnel and plays a role in resisting soil layer pressure, underground water pressure and some special loads. The section of jurisdiction among the prior art is the arc structure, and the section of jurisdiction all need carry out the radian and detect after solidifying the shaping.
Through published patent searches, the following comparison documents were found:
the utility model provides a pipe piece internal diameter detection device (CN206321178U) discloses a pipe piece internal diameter detection device, and its technical scheme main points are pipe piece internal diameter detection device, characterized by: including the testing stand, the testing stand includes two parallels and is used for the centre gripping curb plate of centre gripping section of jurisdiction, and two centre gripping curb plates are slided and are connected with the detection box, are equipped with the location axle that is used for conflict section of jurisdiction intrados on the detection box, still are equipped with two sliding shaft rather than sliding connection, be used for conflict section of jurisdiction intrados on the detection box, and the length of sliding shaft is less than the location axle, is equipped with the scale that supplies the sliding shaft to measure the distance of sliding on the detection box. Through section of jurisdiction internal diameter detection device, get the measurement that single section of jurisdiction can realize the internal diameter, need not to assemble a plurality of sections of jurisdiction, detect more laborsavingly.
Through the analysis, except that the internal and external surface radian when the section of jurisdiction is examined, still must detect the section of jurisdiction concatenation interface coincide all around, this just requires to splice into its annular state when laying in the tunnel with the section of jurisdiction, and section of jurisdiction internal diameter detection device in the above-mentioned patent publication can detect the radian of single section of jurisdiction, obviously does not possess annular radian and detects the function, consequently does not influence the novelty of this application.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's weak point, provide a tunnel segment's concatenation test bench, this test bench can carry out the radian to a plurality of sections of jurisdiction of concatenation cyclization and detect and splice interface goodness of fit detects, and section of jurisdiction holding height and testing platform's detection height all can be adjusted, and simple structure, easily realizes.
A splicing detection test bed for tunnel segments comprises a steel protection cage, a concrete base and a rotary lifting platform which are coaxially and fixedly arranged on the ground, wherein the rotary lifting platform is positioned at an axis position, the outer part of the rotary lifting platform is provided with an annular concrete base, and the outer part of the concrete base is provided with an annular steel protection cage with an opening at the top; a plurality of hydraulic cylinders are axially and fixedly arranged at the top of the concrete base; the top of the rotary lifting platform is horizontally rotated and vertically lifted and provided with a horizontal support for detecting the inner radian of the pipe piece.
The rotary lifting platform also comprises a cylinder barrel base, a lifting piston and a rotating shaft which are coaxially arranged, wherein the bottom of the cylinder barrel base is fixedly arranged on the ground at the axis position of the rotary lifting platform, and a hydraulic oil cavity is arranged in the cylinder barrel base; a lifting piston which axially slides and upwards extends out of the cylinder barrel base is arranged in the hydraulic oil cavity; the top of the lifting piston is coaxially inserted and is connected with a rotating shaft in a rotating fit mode, and the top of the rotating shaft is fixedly connected with a horizontal support.
The utility model has the advantages and the technical effect be:
the utility model discloses a splicing detection test bed for tunnel segments, which is characterized in that a cylindrical steel protection cage is used for external protection to prevent the segments from overturning, and the top of the steel protection cage is open, so that the segments can be conveniently hoisted and spliced by the top of the test bed; the hydraulic cylinders are supported by the concrete base, and the segments are supported by the combination of the hydraulic cylinders, so that the lifting adjustment in the segment splicing process is realized, and the segment splicing operation before detection is facilitated; the segments are spliced into a ring and then rotated by a horizontal bracket of the rotary lifting platform, and measuring instruments such as dial indicators and the like can be arranged at the two ends of the horizontal bracket during detection so as to detect the coaxiality of the ring-shaped segments and the rotating shaft; and finally, the cylinder barrel base provides bottom support for the rotary lifting platform, a hydraulic oil cavity in the cylinder barrel base is connected with an oil pump, the support height adjustment of the lifting piston can be realized, the rotating shaft is inserted into the top of the lifting piston, the rotating shaft is radially limited and circumferentially and rotatably supported, and finally, the lifting adjustable horizontal support and the detection function of rotation on the horizontal plane are realized.
The utility model discloses a tunnel segment's concatenation test bench can detect the segment concatenation state, has not only detected the radian of segment, can also detect the goodness of section of jurisdiction end connection interface according to actual concatenation state, and disposable detectable polylith segment, and detection efficiency is high to the detection height of segment support height and horizontal stand all can be adjusted, is applicable to the segment detection of different dimensions, is a concatenation test bench that has higher creative tunnel segment.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a schematic diagram of the detection state of the present invention;
fig. 3 is a sectional view of the rotary elevating platform of the present invention;
in the figure: 1-steel cage protection; 2-a horizontal support; 3-rotating the lifting table; 4-a hydraulic cylinder; 5-a concrete base; 6-a duct piece; 7-a rotating shaft; 8-lifting piston; 9-a cylinder base; 10-hydraulic oil chamber.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.
A splicing detection test bed for tunnel segments comprises a steel protection cage 1, a concrete base 5 and a rotary lifting platform 3 which are coaxially and fixedly arranged on the ground, wherein the rotary lifting platform is positioned at an axis position, an annular concrete base is arranged outside the rotary lifting platform, and an annular steel protection cage with an opening at the top is arranged outside the concrete base; a plurality of hydraulic cylinders 4 are axially and fixedly arranged at the top of the concrete base; the top of the rotary lifting platform is horizontally rotated and vertically lifted, and a horizontal bracket 2 for detecting the inner radian of the pipe piece is arranged on the top of the rotary lifting platform.
The rotary lifting platform also comprises a cylinder barrel base 9, a lifting piston 8 and a rotating shaft 7 which are coaxially arranged, wherein the bottom of the cylinder barrel base is fixedly arranged on the ground at the axis position of the rotary lifting platform, and a hydraulic oil cavity 10 is arranged in the cylinder barrel base; a lifting piston which axially slides and upwards extends out of the cylinder barrel base is arranged in the hydraulic oil cavity; the top of the lifting piston is coaxially inserted and is connected with a rotating shaft in a rotating fit mode, and the top of the rotating shaft is fixedly connected with a horizontal support.
To more clearly illustrate the embodiments of the present invention, an example is provided below:
the utility model discloses a splicing detection test bed for tunnel segments, which is characterized in that segments 6 are hoisted by a crane or a gantry crane and are placed down from the top opening of a steel cage until the segments are stably supported by a hydraulic cylinder, and the segments are reciprocated until the segments are supported at the tops of a plurality of hydraulic cylinders in a matching way to form a ring shape (namely, the segments are simulated to be actually spliced in a tunnel), then a detector adjusts the lifting height of the hydraulic cylinder according to the splicing interface of the end surface of the segments to detect the interface goodness of the spliced ring segments and ensure that the segments are all positioned on the same horizontal plane, in order to prevent the segments from deflecting after being spliced or the segments self-deforming (the inner arc is changed into a conical surface), the detector needs to sample data with different detection heights according to the width of the segments, and only needs to control the oil pressure in a hydraulic oil chamber by an oil pump in the prior art during, the lifting adjustment of the horizontal support is powered, the rotating power of the horizontal support is provided by the reverse force of a detector standing on the horizontal support for pushing the duct piece by hands, and the two ends of the horizontal support are provided with dial indicators in the prior art, so that the deformation, namely the error, of the inner arc of the duct piece can be conveniently detected.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (2)
1. The utility model provides a tunnel segment's concatenation test bench which characterized in that: the concrete lifting platform comprises a steel protection cage, a concrete base and a rotary lifting platform which are coaxially and fixedly arranged on the ground, wherein the rotary lifting platform is positioned at the axis position, the outer part of the rotary lifting platform is provided with an annular concrete base, and the outer part of the concrete base is provided with an annular steel protection cage with an opening at the top; a plurality of hydraulic cylinders are axially and fixedly arranged at the top of the concrete base; and a horizontal support for detecting the inner radian of the pipe piece is horizontally rotated and vertically lifted at the top of the rotary lifting platform.
2. The splicing detection test bed for tunnel segments as claimed in claim 1, wherein: the rotary lifting platform also comprises a cylinder barrel base, a lifting piston and a rotating shaft which are coaxially arranged, wherein the bottom of the cylinder barrel base is fixedly arranged on the ground at the axis position of the rotary lifting platform, and a hydraulic oil cavity is arranged in the cylinder barrel base; a lifting piston which axially slides and upwards extends out of the cylinder barrel base is arranged in the hydraulic oil cavity; the top of the lifting piston is coaxially inserted and is connected with a rotating shaft in a rotating fit mode, and the top of the rotating shaft is fixedly connected with a horizontal support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922276988.5U CN210981122U (en) | 2019-12-18 | 2019-12-18 | Splicing detection test bed for tunnel segments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922276988.5U CN210981122U (en) | 2019-12-18 | 2019-12-18 | Splicing detection test bed for tunnel segments |
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| Publication Number | Publication Date |
|---|---|
| CN210981122U true CN210981122U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922276988.5U Active CN210981122U (en) | 2019-12-18 | 2019-12-18 | Splicing detection test bed for tunnel segments |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432560A (en) * | 2021-05-26 | 2021-09-24 | 中安华力建设集团有限公司 | Indoor detection device for tunnel duct piece installation positioning |
-
2019
- 2019-12-18 CN CN201922276988.5U patent/CN210981122U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432560A (en) * | 2021-05-26 | 2021-09-24 | 中安华力建设集团有限公司 | Indoor detection device for tunnel duct piece installation positioning |
| CN113432560B (en) * | 2021-05-26 | 2024-05-28 | 中安华力建设集团有限公司 | Indoor detection device for tunnel segment installation and positioning |
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