CN220288551U - Circular tunnel axis check out test set - Google Patents
Circular tunnel axis check out test set Download PDFInfo
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- CN220288551U CN220288551U CN202322196326.3U CN202322196326U CN220288551U CN 220288551 U CN220288551 U CN 220288551U CN 202322196326 U CN202322196326 U CN 202322196326U CN 220288551 U CN220288551 U CN 220288551U
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- 238000012360 testing method Methods 0.000 title claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 229910000838 Al alloy Inorganic materials 0.000 claims description 15
- 238000005259 measurement Methods 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 238000013507 mapping Methods 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to circular tunnel axis detection equipment, which belongs to the technical field of construction mapping, and comprises square steel, a prism rod, a prism and a level pipe bubble; the square steel is horizontally placed in the round tunnel, and the prism rod is vertically fixed in the middle of the square steel; the prism is arranged at the top end of the prism rod, and the prism rod is matched with the prism; the air bubble of the level tube is arranged on square steel beside the prism rod. The utility model is convenient for the detection of the axis of the forming hole of the circular tunnel, has stable and rapid detection, low device cost, safe and reliable performance, simple use, rapid installation speed, simple and convenient process, improves the measurement precision and more rapidly calculates the data deviation value of the measurement result on site.
Description
Technical Field
The utility model belongs to the technical field of construction mapping, and particularly relates to circular tunnel axis detection equipment.
Background
Along with the development of underground engineering in China, the underground tunnel is more and more safely and rapidly constructed by adopting a TBM and shield construction method, circular tunnel section excavation is generally adopted, the underground engineering development is rapid, the measurement industry is continuously improved in engineering construction, the measurement is more required to be continuously carried out for professional measurement and inspection and deviation correction, the tunnel axis is prevented from deviating from the central line position of a designed tunnel, the measurement personnel is required to detect the tunnel axis in the tunnel construction, more measurement technicians are required to cooperate, a large amount of data are required to be acquired by the section method for carrying out section circle fitting, the circle center is compared with the design after fitting, the lofting method is that the distance comparison is carried out by adopting a ruler method after the tunnel central point is formed, the working procedure of the lofting method is complex, the process is also completed by cooperation of a plurality of measurement personnel, the section method is more in acquisition of measurement data, the data processing speed is low and is easy to make mistakes, and the measurement requirement on the axis detection of the tunnel is not met.
Therefore, it is necessary to provide a circular tunnel axis detection device, which is convenient for the detection of the axis of the circular tunnel after the forming, and has the advantages of stable detection, low manufacturing cost of the device, stable and reliable performance, convenient and simple use, high installation speed, simple process, high measurement precision, high calculation efficiency, automatic searching and aiming by using an advanced instrument with a motor to replace a manual aiming prism, and the like, thereby having breakthrough improvement and practical value and better economic and social benefits.
Disclosure of Invention
In order to overcome the problems in the background technology, the utility model provides the circular tunnel axis detection equipment which is convenient for the circular tunnel forming hole axis detection, stable and rapid in detection, low in device cost, safe and reliable in performance, simple in use, high in installation speed, simple and convenient in process, improves the measurement precision and can calculate the measurement result data deviation value more rapidly on site.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the circular tunnel axis detection equipment comprises square steel 1, a prism rod 2, a prism 3 and a level pipe bubble 4; the square steel 1 is horizontally placed in the round tunnel, and the prism rod 2 is vertically fixed in the middle of the square steel 1; the prism 3 is arranged at the top end of the prism rod 2, and the prism rod 2 and the prism 3 are matched; the level tube bubble 4 is arranged on the square steel 1 beside the prism rod 2.
Preferably, the three points of the center of the square steel 1, the center of the prism rod 2 and the center of the prism 3 are on the same vertical line.
Preferably, the distance between the bubble 4 of the leveling tube and the prism rod is 20-30 cm.
Preferably, the square steel 1 is made of aluminum alloy.
The utility model has the beneficial effects that:
1. the method is placed at the section in the tunnel to be detected, the leveling bubble is only required to be adjusted vertically and horizontally to center on the square steel, the center position of the prism is the center of the section axis of the tunnel, the coordinates of the point are measured through the total station, the coordinates on the axis of the tunnel can be obtained, and the actual deviation of the axis of the tunnel can be obtained rapidly by comparing with the design coordinates. The length of the square steel and the height from the edge center to the center of the cross section of the designed tunnel are determined in advance, the height difference when the square steel is in a horizontal state can be calculated, the height of the axis of the existing tunnel can be rapidly calculated by utilizing the distance between the measured height Cheng Jia prism center and the center of the tunnel, and the deviation of the elevation of the completed tunnel can be rapidly obtained by comparing the measured height Cheng Jia prism center with the designed height.
2. The utility model uses the bubble of the level pipe arranged on the aluminum alloy square steel and the prism arranged on the aluminum alloy ruler, has quick measurement, convenient use, economical materials and simple manufacture, and can be used for various measurement and detection in the measurement construction process and can be repeatedly used.
3. The utility model is convenient for the detection of the axis of the circular tunnel, solves the problem that a measurer cannot find the center point of the axis of the actual tunnel, accurately detects the center and the elevation of the axis of the tunnel during the detection and retest of the tunnel, can rapidly calculate the difference value between the axis of the tunnel and Gao Chengpian, has the advantages of stable detection, low manufacturing cost, stable and reliable performance, convenient and simple use, high installation speed, simple process, high measurement precision, high calculation efficiency, and the like, and also has the advantages of breakthrough improvement and practical value, and better economic and social benefits by utilizing the advanced instrument with a motor to automatically search and aim for replacing the manual aiming prism.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the mounting structure of the present utility model;
FIG. 3 is a graph of a reference theoretical value calculation of the present utility model;
in the figure, 1-square steel, 2-prism rod, 3-prism and 4-level tube bubbles.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, and the described embodiments are only some embodiments, but not all embodiments of the present utility model, based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making any creative effort are all within the scope of protection of the present utility model.
In order that the utility model may be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which, however, the utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but are instead provided to provide a more thorough and complete disclosure of the utility model.
It should be noted that the terms "upper", "lower", "front", "rear" and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1-3, the circular tunnel axis detection device comprises square steel 1, a prism rod 2, a prism 3 and a level pipe bubble 4. The square steel 1 is made of aluminum alloy, the square steel 1 is horizontally placed in the round tunnel, and the prism rod 2 is vertically fixed in the middle of the square steel 1. The prism 3 is arranged at the top end of the prism rod 2, and the prism rod 2 and the prism 3 are matched. The leveling pipe bubble 4 is arranged on the square steel 1 20-30 cm away from the side of the prism rod 2. The center of the square steel 1, the center of the prism rod 2 and the center of the prism 3 are positioned on the same vertical line. The leveling pipe bubble 4 is arranged on the square steel 1 and is convenient for leveling the square steel 1, the prism rod 2 is arranged at the center of the square steel 1 and is used for positioning the center of the square steel 1 and the center of the current prism 3 and the circular tunnel, and the prism 3 matched with the total station is arranged at the top of the prism rod 2, so that the square steel 1 is horizontally and horizontally straight, and three points in the vertical direction are arranged on the same central line and are the center of the square steel 1, the center of the prism rod 2 and the center of the prism 3. The detection equipment manufactured by adopting the aluminum alloy square steel 1 utilizes the bubble 4 of the leveling pipe to level, and the central position of the measuring prism 3 after leveling carries out tunnel axis detection work. The square steel 1 is leveled by adopting the leveling pipe bubble 4, and the square steel 1 is in a horizontal state by adjusting the centering of the leveling pipe bubble. The square steel 1 is flat and straight, the length is not affected according to the wind, water pipelines and two sides in the hole, but the aluminum alloy square steel 1 is not suitable to be overlong.
The manufacturing process of the utility model comprises the following steps:
according to the utility model, 50mm of aluminum alloy square steel 1 is selected according to the size in a design drawing, 50-80 mm of the length of a prism rod 2 is selected and cut according to the corresponding structural size, the cut quality and manufacturing deviation are controlled within 1mm, the length of the prism rod 2 is 50-80 mm, the prism rod is installed at the central position of the aluminum alloy square steel 1 and is also the central point of a current prism 3, a prism 3 matched with a total station is installed at the top of the prism rod 2, so that the square steel 1 is horizontally and horizontally straight, the precision is ensured on the same central line by three points in the vertical direction, the centers of the three points are the center of the square steel 1, the center of the prism rod 2 and the center of the prism 3, a level tube bubble 4 is arranged at the position 20-30 cm beside the prism rod 2 on the aluminum alloy square steel 1, the level tube bubble 4 is installed in parallel with the aluminum alloy square steel 1, the level of the aluminum alloy square steel cross rod is adjusted by utilizing the level tube bubble 4, and when the bubble is centered, the tunnel axis detection equipment is in a horizontal state, and the central position of the prism 3 is the tunnel axis center.
The utility model calculates with reference to theoretical value:
calculating a theoretical value of a circular tunnel axis detection device, measuring square steel 1 at a position needing to be detected, placing the square steel 1 at an optimal position, measuring the length, intercepting the length of the square steel 1 according to the measured length, confirming the length of the intercepted square steel 1 again after intercepting, and punching and installing a prism rod 2 at the center position of the 1/2 square steel 1 after confirming the length, so that the center of the prism rod 2 and the square steel 1 are positioned at the same center position.
The H and H heights in fig. 3 are calculated from the length of the square steel 1 thus produced.
Assume that: the radius of the tunnel section circle is R, the length of the square steel 1 is chord length L, and the height of the prism is b (note: the height of the prism is the distance from the bottom of the aluminum alloy square steel to the center of the prism).
The following is made: and drawing a circle by taking the length L of the square steel 1 as the chord length of the drawing at the moment, respectively drawing a straight line from the intersection point of the two circles to the bottom of the aluminum alloy square steel by using the radius R of the designed tunnel section at the two ends of the chord length, setting the straight line as H, and drawing a circle by using the designed radius at the intersection position of the two circles to obtain the position of the round section of the aluminum alloy square steel, namely under the condition of a standard section, the center position of the square steel 1 is exactly the center line position of the tunnel, the assumption from the bottom of the center of the square steel 1 to the top surface of the tunnel is H, and the H, H value is calculated as a reference theoretical value, thus being an important relevant parameter of a calculation result in future measurement and detection.
The calculation formula according to the trigonometric function is as follows:
1、H=√(R 2 -(L/2) 2 )-b 2、h=R-√(R 2 -(L/2) 2 )+b
the graphic calculation is carried out according to the actual operation:
examples: the known parameters are: r=3.75m, l=3.9m, b=0.1m are brought into formula calculation:
H=√R 2 -(L/2) 2 -b=√(3.75 2 -(3.9/2) 2 )-0.1≈3.1031m
h=R-√(R 2 -(L/2) 2 )+b=3.75-√(3.75 2 -(3.9/2) 2 )-0.1≈0.6469m
data processing parameter values are calculated H, h.
The working process of the utility model comprises the following steps:
and selecting a proper control point position in a hole to erect a total station (note: in a large-scale project, a commonly configured total station is a measuring device with a motor and has the functions of tracking and automatic calibration), centering and leveling the total station, then carrying out station setting measurement, checking the station setting condition after finishing station setting, then finding another control point to check whether the current station setting reaches the measurement precision, setting the station precision generally not to exceed +/-5 mm, if the station setting is qualified, then placing a circular tunnel axis detecting device at a corresponding position required to be measured by another measurer, leveling a leveling tube bubble on the detecting device, centering the leveling tube bubble, telling an observer to measure, centering the total station approximately to a prism 3 of the detecting device, then pressing a measuring key of the total station, automatically calibrating the prism 3 center on the detecting device by the total station, recording data by the observer, calculating a current measuring result, and comparing the current measured height +H=current section circle center height, and the current measured height-h=current section bottom plate height, and comparing the current measured height with a designed measuring result Gao Chengzuo, and carrying out a corresponding measure to the current measured result, and informing the observer to the measured result to the field.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the utility model, and that, although the utility model has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.
Claims (4)
1. Circular tunnel axis check out test set, its characterized in that: the circular tunnel axis detection equipment comprises square steel (1), a prism rod (2), a prism (3) and a level pipe bubble (4); the square steel (1) is horizontally arranged in the circular tunnel, and the prism rod (2) is vertically fixed in the middle of the square steel (1); the prism (3) is arranged at the top end of the prism rod (2), and the prism rod (2) is matched with the prism (3); the level tube bubble (4) is arranged on the square steel (1) beside the prism rod (2).
2. The circular tunnel axis detection apparatus of claim 1, wherein: the center of the square steel (1), the center of the prism rod (2) and the center of the prism (3) are positioned on the same vertical line.
3. The circular tunnel axis detection apparatus of claim 1, wherein: the distance between the air bubble (4) of the leveling tube and the prism rod (2) is 20-30 cm.
4. The circular tunnel axis detection apparatus of claim 1, wherein: the square steel (1) is made of aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322196326.3U CN220288551U (en) | 2023-08-16 | 2023-08-16 | Circular tunnel axis check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322196326.3U CN220288551U (en) | 2023-08-16 | 2023-08-16 | Circular tunnel axis check out test set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220288551U true CN220288551U (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322196326.3U Active CN220288551U (en) | 2023-08-16 | 2023-08-16 | Circular tunnel axis check out test set |
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| Country | Link |
|---|---|
| CN (1) | CN220288551U (en) |
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2023
- 2023-08-16 CN CN202322196326.3U patent/CN220288551U/en active Active
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