CN106844841B - Tunnel section drawing method for parametric mining method tunnel - Google Patents
Tunnel section drawing method for parametric mining method tunnel Download PDFInfo
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Abstract
The invention discloses a tunnel section drawing method of a parametric mine method tunnel, which comprises the following steps: step A: drawing up standard tunnel section profiles suitable for different tunnel sections according to preset tunnel section drawing up rules, wherein the shapes of the standard tunnel section profiles are controlled by tunnel profile parameters; and B: and adjusting parameter values of the tunnel profile parameters according to the given tunnel limit, and drawing up a new tunnel section profile which can wrap the given tunnel limit. The method effectively solves the problem that a designer repeatedly plans the tunnel outline, saves the complex work of calculating the engineering quantity of the tunnel section and improves the working efficiency of the designer.
Description
Technical Field
The invention relates to a method for drawing a tunnel section, in particular to a method for drawing a tunnel section of a tunnel by a parameterized mining method.
Background
The mine method tunnel is widely applied in the engineering field, the setting of the tunnel outline is often complicated, and in order to ensure that all sections of circular arcs of the tunnel outline are tangent to each other, a designer needs to repeatedly adjust the radius and the position of the circle center of each section of circular arc. In order to improve the working efficiency of designers, it is necessary to establish a method for rapidly drawing up the profile of the tunnel section.
The current tunnel section drawing method comprises the following steps: the drawing tool is adopted to draw the cross section of the tunnel respectively according to different tunnel limits, when the size of the cross section of the tunnel is large, the cross section should be drawn according to the same drawing step each time, and the conditions that the repeated labor is large and the drawing work is repeated frequently exist.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a tunnel section drawing method of a parametric mine tunnel, which effectively solves the problem that a designer repeatedly plans a tunnel outline, saves the complex work of calculating the engineering quantity of the tunnel section and improves the work efficiency of the designer.
In order to achieve the purpose, the invention adopts the following technical scheme:
a tunnel section drawing method of a parametric mining method tunnel comprises the following steps:
step A: drawing up standard tunnel section profiles suitable for different tunnel sections according to preset tunnel section drawing up rules, wherein the shapes of the standard tunnel section profiles are controlled by tunnel profile parameters;
and B: and adjusting parameter values of the tunnel profile parameters according to the given tunnel limit, and drawing up a new tunnel section profile which can wrap the given tunnel limit.
As a specific example, the tunnel contour parameters include arc length, radius, radian and arc center.
As a specific embodiment, before the step a, the method further includes: and determining the number of the arcs of the section according to the shape and the size of the section of the tunnel.
As a specific example, the standard tunnel section profile and the new tunnel section profile are single-center circles or multi-center circles.
Further, when the tunnel cross-section profile is a single center circle, the drawing up a standard tunnel cross-section profile suitable for different tunnel cross-sections according to a preset tunnel cross-section drawing up rule specifically includes: according to a certain tunnel limit, determining the arc radius, the arc length and the central angle of the tunnel section outline which is suitable for the tunnel limit, and drawing the tunnel section outline by taking the circle center as an origin.
If the section is a straight wall type tunnel section, a straight line combined with the drawing circular arc needs to be drawn to form a straight wall type tunnel section outline.
Further, when the tunnel cross-section profile is a multi-center circle, the drawing up a standard tunnel cross-section profile suitable for different tunnel cross-sections according to a preset tunnel cross-section drawing up rule specifically includes:
according to a certain tunnel limit, determining the radius, the arc length and the central angle of a main arc of a tunnel section outline suitable for the tunnel limit, and drawing a 1 st section of arc by taking the circle center as an origin;
according to the tunnel limit, determining the height of the profile of the section of the tunnel, the radius and the circle center coordinate of the 2 nd section of circular arc and the radius of the nth section of circular arc;
calculating the center coordinates of the nth segment of circular arc;
calculating the central angle, the starting point and the terminal of the arc of the 2. n-1 section;
drawing a 2 & ltth & gt & ltn & gt section of circular arc according to the calculated result, the height of the profile of the section of the tunnel, the radius of the 2 nd section of circular arc, the circle center coordinate and the radius of the nth section of circular arc;
wherein n is more than or equal to 3.
As a specific embodiment, the method further comprises: and C: and drawing a constructable tunnel section drawing according to the distance between anchor rods by inputting the thickness of the primary support and the secondary lining, the arrangement angle and distance of the small guide pipes or the large pipe shed.
The technical scheme provided by the invention has the following beneficial effects:
the tunnel section drawing method of the parameterized mine tunnel comprises the steps of firstly, drawing a standard tunnel section outline suitable for different tunnel sections, and parameterizing the standard tunnel section outline; when other different tunnel sections are drawn, the change of the shape and the size of the profile of the tunnel section can be realized only by adjusting corresponding parameter values, so that the tunnel section profile drawing method is suitable for different tunnel limits, the repeated planning work of a designer on the tunnel profile is effectively solved, and the working efficiency of the designer is improved.
Furthermore, because the tunnel section drawing method of the parameterized mine tunnel is adopted to draw the tunnel section outline, the tunnel section outline can directly calculate the quantity of projects to be constructed related to the planned tunnel section per linear meter by controlling the tunnel outline parameters of the shape and the size of the tunnel section outline, and the complex work of calculating the quantity of the tunnel section projects is saved.
Drawings
FIG. 1 is a first segment of a circle arc plot of input parameters for an embodiment of the present invention;
FIG. 2 is a second, third and fourth segment arc diagram of input parameter rendering according to an embodiment of the present invention;
FIG. 3 is a complete tunnel profile diagram of an embodiment of the present invention;
FIG. 4 is a graph of output tunnel profile and control tunnel profile parameters for an embodiment of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the following specific examples and the accompanying figures 1-4.
The tunnel section drawing method of the parameterized mine tunnel comprises the following steps:
step A: and drawing up a standard tunnel section profile suitable for different tunnel sections according to a preset tunnel section drawing up rule, wherein the shape of the standard tunnel section profile is controlled by tunnel profile parameters.
The tunnel contour parameters comprise the length of an arc, the radius, the radian and the circle center of the arc. The standard tunnel section outline and the new tunnel section outline are single-center circles or multi-center circles.
Before step a, that is, before a standard tunnel section profile suitable for different tunnel sections is drawn up, the method further includes the following steps: determining the number of arcs of the section according to the shape and the size of the section of the tunnel, wherein the number of arcs can be single-center circles, such as a single-center circle straight wall type tunnel section and a circular tunnel section; or a multi-center circle, such as a three-center circular tunnel section and a five-center circular tunnel section.
After the number of the section arcs is determined, for example, the section is determined to be a circular tunnel section, and then a standard tunnel section profile suitable for the circular tunnel section is drawn up according to a preset tunnel section drawing rule.
Specifically, when the tunnel section contour is a single-center circle, according to a certain single-center circle tunnel limit, determining the arc radius, the arc length and the center angle of the tunnel section contour which is suitable for the tunnel limit, and drawing the tunnel section contour by taking the center of the circle as an origin.
After the number of the arcs of the cross section is determined, for example, the cross section of the five-center tunnel is determined, and then a standard tunnel cross section profile suitable for the cross section of the five-center tunnel is drawn up according to a preset tunnel cross section drawing rule.
Specifically, when the tunnel section contour is a multi-center circle, according to a certain multi-center circle tunnel limit, determining the radius, arc length and center angle of a main arc of the tunnel section contour adapting to the tunnel limit, and drawing a 1 st segment of arc by taking the center of the main arc as an origin;
according to the tunnel limit, determining the height of the profile of the section of the tunnel, the radius and the circle center coordinate of the 2 nd section of circular arc and the radius of the nth section of circular arc;
calculating the center coordinates of the nth segment of circular arc;
calculating the central angle, the starting point and the terminal of the arc of the 2. n-1 section;
drawing a 2 & ltth & gt & ltn & gt section of circular arc according to the calculated result, the height of the profile of the section of the tunnel, the radius of the 2 nd section of circular arc, the circle center coordinate and the radius of the nth section of circular arc;
wherein n is more than or equal to 3.
And B: and adjusting parameter values of the tunnel profile parameters according to the given tunnel limit, and drawing up a new tunnel section profile which can wrap the given tunnel limit.
For the drawing of the profile of the section of the single-core round tunnel, the section of the round tunnel is taken as an example: after the standard tunnel section profile of the circular tunnel section is drawn, the circular tunnel profile parameters are adjusted, so that the adjusted new tunnel section profile can cover the given circular tunnel limit.
For the drawing of the profile of the cross section of the multi-center circular tunnel, the cross section of the five-center circular tunnel is taken as an example: after the standard tunnel section profile of the five-center circular tunnel section is drawn, adjusting the profile parameters of the five-center circular tunnel so that the adjusted new tunnel section profile can cover the given five-center circular tunnel limit.
And C: and drawing a constructable tunnel section drawing according to the distance between anchor rods by inputting the thickness of the primary support and the secondary lining, the arrangement angle and distance of the small guide pipes or the large pipe shed. In other words, after the tunnel section contour is drawn, the preliminary bracing, the thickness of the secondary lining, the arrangement angle and the spacing of the small guide pipes or the large pipe shed and the spacing of the anchor rods are input, and the drawn tunnel section contour is drawn into a constructable tunnel section drawing.
The tunnel section drawing method of the parameterized mine tunnel comprises the steps of firstly, drawing a standard tunnel section outline suitable for different tunnel sections, and parameterizing the standard tunnel section outline; when other different tunnel sections are drawn, the change of the shape and the size of the profile of the tunnel section can be realized only by adjusting corresponding parameter values, so that the tunnel section drawing method is suitable for different tunnel limits, the repeated planning work of a designer on the profile of the tunnel is effectively solved, the complex work of calculating the engineering quantity of the tunnel section is saved, and the work efficiency of the designer is improved. Furthermore, because the tunnel section drawing method of the parameterized mine tunnel is adopted to draw the tunnel section outline, the tunnel section outline drawing method can directly calculate the quantity of projects to be constructed related to the planned tunnel section per linear meter by controlling the tunnel outline parameters of the shape and the size of the tunnel section outline, thereby saving the complex work of calculating the quantity of the tunnel section projects
Example 1
As shown in fig. 1 to 4, a specific example of drawing a four-center arc axisymmetric tunnel profile by using the parametric mine tunnel section drawing method of the embodiment of the present invention is as follows:
firstly, drawing a half contour, and drawing the other half contour symmetrically with the half contour, which specifically comprises the following steps:
s100) determining the radius of the main arc of the four-center circle according to the limitation of the four-center circle tunnel, drawing a first section of arc with the radius of R1 and the arc length corresponding to the angle of α1The center of the circle is set as the origin coordinate (0, 0).
S200): the height of the whole tunnel is determined by the tunnel boundary, the radius R2 of the second arc segment and the circle center position (0, y2) of the second arc segment are determined, and the radius R3 of the third arc segment and the radius R4 of the fourth arc segment are determined.
The method specifically comprises the following steps:
using the known parameters R1, R2, R3, R4, y2, α1；
Finding the center of the third arc, wherein x3 (R3-R1) sin α 1, y3 (R3-R1) cos α 1)
Solving the circle center position (x4, y4) of the fourth segment of the circular arc by using a simultaneous system of equations:
(X4-x3)2+(y4-y3)2＝(R3-R4)2
X4＞0
the angle corresponding to the second arc segment is calculated as α 2 ═ arctan (x4/(y2-y 4)).
The end point of the second arc (starting point is (0), (R2-y 2)): x22 ═ R2sin (α 2), y22 ═ y2 — R2cos (α 2) is determined.
Finding the angle corresponding to the third segment of circular arc, wherein α 3 is arctan ((y31-y3)/(x31-x3)) + arctan ((y4-y3)/(x4-x 3)).
The starting point of the third arc (i.e., the end point of the first arc) is x31 ═ R1sin (α 1) and y31 ═ R1cos (α 1).
And (3) solving the end point of the third section of circular arc:
x32＝R3cos[arctan((y4-y3)/(x4-x3))]+x3,y32＝y3-R3sin[arctan((y4-y3)/(x4-x3))]。
the starting point of the fourth section of circular arc is the end point of the second section of circular arc, and the end point of the fourth section of circular arc is the end point of the third section of circular arc.
Drawing a second section of circular arc by using the starting point and the ending point of the second point circular arc and the circle center,
drawing a third section of circular arc by using the starting and ending point and the circle center of the third point of circular arc,
drawing a fourth arc by using the starting point and the ending point of the fourth arc and the circle center,
the other half of the profile symmetrical to the other half is drawn by the same method as described above.
S300): arbitrarily adjusting the control parameters of the tunnel profile changes the shape and size of the tunnel profile to accommodate the new given tunnel boundary. And according to the standard tunnel section profile of the four-center circular tunnel, the input parameters are used for drawing a first arc S1, wherein the first arc is shown in figure 1. Then parameters are respectively input to draw a second arc S2, a third arc S3 and a fourth arc S4, and the drawn graphs are shown in FIG. 2. And finally, symmetrically drawing another semicircular arc profile to form a complete tunnel section profile diagram, as shown in figure 3.
S400): and (3) drawing a complete tunnel section construction drawing by inputting other tunnel section parameters such as primary lining thickness, secondary lining thickness, arrangement angle and spacing of small conduits (large pipe sheds) and anchor rod length and spacing. Fig. 4 shows the output tunnel profile and the parameters controlling the tunnel profile.
Example 2
The following is a specific example of drawing a straight-wall tunnel section profile by the parametric mining method tunnel section drawing method of the embodiment of the invention:
the method comprises the steps of firstly, tunnel limiting of a straight wall type tunnel section, determining the radius, the arc length and the central angle of an arc, taking the circle center as an origin, and drawing the arc section of the profile of the tunnel section.
And then drawing a straight line combined with the drawing circular arc to form a straight wall type tunnel section profile. Wherein when drawing a straight line combined with the drawn circular arc, the straight line is treated as a special circular arc.
The present invention is not limited to the above-described embodiments, and various changes and modifications of the present invention are also intended to be included within the scope of the claims and equivalent technologies of the present invention, unless they depart from the spirit and scope of the present invention.
Claims (7)
1. The method for drawing the tunnel section of the tunnel by the parametric mining method is characterized by comprising the following steps of:
step A: drawing up standard tunnel section profiles suitable for different tunnel sections according to preset tunnel section drawing up rules, wherein the shapes of the standard tunnel section profiles are controlled by tunnel profile parameters;
and B: adjusting parameter values of the tunnel profile parameters according to the given tunnel limit, and drawing up a new tunnel section profile which can wrap the given tunnel limit;
when the profile of the tunnel cross section is a multi-center circle, the step of drawing up the standard tunnel cross section profile suitable for different tunnel cross sections according to the preset tunnel cross section drawing-up rule specifically comprises the following steps:
according to a certain tunnel limit, determining the radius, the arc length and the central angle of a main arc of a tunnel section outline suitable for the tunnel limit, and drawing a 1 st section of arc by taking the circle center as an origin;
according to the tunnel limit, determining the height of the profile of the section of the tunnel, the radius and the circle center coordinate of the 2 nd section of circular arc and the radius of the nth section of circular arc;
calculating the center coordinates of the nth segment of circular arc;
calculating the central angle, the starting point and the terminal of the arc of the 2. n-1 section;
drawing a 2 & ltth & gt & ltn & gt section of circular arc according to the calculated result, the height of the profile of the section of the tunnel, the radius of the 2 nd section of circular arc, the circle center coordinate and the radius of the nth section of circular arc;
wherein n is more than or equal to 3.
2. The method of claim 1, wherein: the tunnel contour parameters comprise an arc starting and ending point, a radius, a radian and an arc center.
3. The method of claim 1, further comprising, prior to step a: and determining the number of the arcs of the section according to the shape and the size of the section of the tunnel.
4. The method of claim 1, wherein the standard tunnel profile and the new tunnel profile are single-centered arcs or multi-centered arcs.
5. The method according to claim 4, wherein when the tunnel cross-section profile is a single center circle, the drawing up a standard tunnel cross-section profile suitable for different tunnel cross-sections according to the preset tunnel cross-section drawing up rule specifically comprises:
according to a certain tunnel limit, determining the arc radius, the arc length and the central angle of the tunnel section outline which is suitable for the tunnel limit, and drawing the tunnel section outline by taking the circle center as an origin.
6. The method of claim 5, further comprising: and drawing a straight line combined with the drawn circular arc to form a straight wall type tunnel section profile.
7. The method of claim 1, further comprising:
and C: and drawing a constructable tunnel section drawing according to the distance between anchor rods by inputting the thickness of the primary support and the secondary lining, the arrangement angle and distance of the small guide pipes or the large pipe shed.
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| CN107908848A (en) * | 2017-11-08 | 2018-04-13 | 安徽省交通控股集团有限公司 | The three of a kind of tubular passageway section connect arc design method |
| CN109211167B (en) * | 2018-09-03 | 2021-06-01 | 山东大学 | Tunnel secondary lining thickness accurate detection method based on function curve fitting |
| CN109992012B (en) * | 2019-04-23 | 2022-03-25 | 云南交投集团投资有限公司 | Camera cluster attitude control method |
| CN111914338B (en) * | 2020-08-14 | 2024-01-19 | 中国十七冶集团有限公司 | Method for establishing BIM model of parameterized tunnel open cut tunnel lining structure |
| CN113137952B (en) * | 2021-04-23 | 2021-11-12 | 交通运输部公路科学研究所 | Positioning method for tunnel section measuring point |
| CN117436171B (en) * | 2023-10-24 | 2024-05-07 | 广州地铁设计研究院股份有限公司 | BIM-based tunnel load assessment method, device, terminal equipment and medium |
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Inventor after: Nong Xingzhong Inventor after: Liu Jiafu Inventor after: Huang Zhonghui Inventor after: Wang Binghua Inventor after: He Xusheng Inventor after: Jiang Panping Inventor after: Wang Jian Inventor after: Zou Chenglu Inventor after: Xu Wentian Inventor after: Zhai Lihua Inventor after: Liu Xin Inventor after: Liu Xiandong Inventor after: Xiao Feng Inventor after: Yang Cheng Inventor before: Nong Xingzhong Inventor before: Liu Jiafu Inventor before: Wang Jian Inventor before: Zou Chenglu Inventor before: Xu Wentian Inventor before: Zhai Lihua Inventor before: Liu Xin Inventor before: Liu Xiandong Inventor before: Xiao Feng Inventor before: Yang Cheng |