CN108920870A - A kind of tunnel open excavation section excavation of foundation pit face design method based on BIM - Google Patents
A kind of tunnel open excavation section excavation of foundation pit face design method based on BIM Download PDFInfo
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Abstract
The tunnel open excavation section excavation of foundation pit face design method based on BIM that the invention discloses a kind of, this approach includes the following steps：Establish tunnel open excavation section three-dimensional space line position (S1), establish tunnel open excavation section Digital Three-Dimensional landform (S2), establish open excavation section tunnel main structure model (S3), it generates tunnel open excavation section excavation of foundation pit face control line (S4), it generates tunnel open excavation section excavation of foundation pit face and plays slope line (S5), excavation face (S6) is generated by highly controlling every grade of excavation face height, excavation face (S7) is generated by every grade of excavation face height of high process control, final brush slope model (S8) is generated, is read excavation face maximum cutting depth (S9).The method achieve the designs in tunnel open excavation section excavation of foundation pit face in three-dimensional scenic, are a rings indispensable in tunnel BIM design, have apparent application value.
Description
Technical field
The present invention relates to the Tunnel Design methods based on BIM, more particularly to a kind of tunnel open excavation section foundation pit based on BIM
The design method of excavation face.
Background technique
The design of existing tunnel open excavation section excavation face, the main conventional two-dimensional according to the method for section design, and not only operating process is numerous
It is trivial, and the brush slope height between section is difficult accurately to embody, and greatly reduces Tunnel Design quality.BIM technology has been in recent years
It as the development trend of building industry, therefore either complies with industry development and still improves design accuracy and quality, based on BIM's
Tunnel open excavation section excavation of foundation pit face design method is all badly in need of studying.
Summary of the invention
In view of the problems of current tunnel open excavation section excavation of foundation pit face design, the present invention propose it is a kind of completely new based on
The tunnel open excavation section excavation of foundation pit face design method of BIM, by establishing tunnel open excavation section three-dimensional space line position, establishing tunnel open excavation
Section digitlization dimensional topography establishes open excavation section tunnel main structure model, generates tunnel open excavation section excavation of foundation pit face control line, life
Slope line is played at tunnel open excavation section excavation of foundation pit face, generates excavation face, by high program-controlled by highly controlling every grade of excavation face height
It makes every grade of excavation face height to generate excavation face, generate final brush slope model, read excavation face maximum cutting depth, realizes three-dimensional
Tunnel open excavation section excavation of foundation pit face is designed under environment, and the correlation that can satisfy in tunnel open excavation section conceptual design and detailed design is wanted
It asks, suitable for the tunnel open excavation section excavation of foundation pit face design based on BIM.
A kind of tunnel open excavation section excavation of foundation pit face design method based on BIM according to the present invention, it is characterised in that should
Method includes the following steps：
S1, tunnel open excavation section three-dimensional space line position is established
Support route is flat, vertical section generates tunnel line three-dimensional space curve under three-dimensional environment.
S2, tunnel open excavation section Digital Three-Dimensional landform is established
Ground actual measurement pile No. elevation data is relied on to generate three-dimensional space terrain surface under three-dimensional environment.
S3, open excavation section tunnel main structure model is established
Three-dimensional space line position is relied on to establish tunnel main tunnel structural model and cavern's structural model, as design open-cut foundation ditch bottom
The foundation on face excavation boundary.
S4, tunnel open excavation section excavation of foundation pit face control line is generated
It relies on tunnel main tunnel structural model and cavern's structural model to extract foundation pit bottom surface excavation face boundary Control line, and relies on
This control line generates excavation face and plays slope line.
S5, tunnel open excavation section excavation of foundation pit face slope line is generated
Tunnel open excavation section excavation of foundation pit face control line in S4 is excavated into size vertical according to foundation pit bottom surface actually required
In line position direction horizontal direction or vertically deviated, obtain excavation of foundation pit face plays slope line.
S6, excavation face is generated by highly controlling every grade of excavation face height
Refer to that the height of certain level-one excavation face during generating excavation face is consistent, the excavation face series of generation is according to dimensionally
Shape situation automatically determines, minimum series when excavation face series takes it to intersect completely with landform face, and excavation face includes slope peace
Platform two parts, slope are controlled by height and depth-width ratio control, platform by plateau levels width and ratio of slope, and slope can be perpendicular
To platform can be level, certain level-one or what step can be controlled separately.
S7, excavation face is generated by every grade of excavation face height of high process control
The whole slope line elevation of certain level-one excavation face is consistent during generation excavation face, and the excavation face series of generation is according to three-dimensional
Topographic features automatically determine, minimum series when excavation face series takes it to intersect completely with landform face, excavation face include slope and
Platform two parts, slope are controlled by elevation and depth-width ratio, and platform is controlled by plateau levels width and ratio of slope, and slope can be
Vertically, platform can be level, certain level-one or what step can be controlled separately.
S8, final excavation surface model is generated
It is cut, is obtained adaptable with practical dimensional topography face with excavation face of the three-dimensional space terrain surface to generation
Excavate surface model.
S9, excavation face maximum cutting depth is read
The maximum vertical height that surface model highest excavation point is finally excavated within the scope of excavation paragraph to corresponding slope point is read,
I.e. maximum cutting depth.
The advantageous effect of the invention is：
Under three-dimensional digital environment, it is based on three-dimensional space line position and three-dimensional space terrain surface, realizes tunnel open excavation
The design of section excavation of foundation pit face solves the problems, such as that precision is low, low efficiency in the design of two-dimensional cross-section method, can satisfy tunnel open excavation section
The related request of conceptual design and detailed design in design meets the tunnel open excavation section excavation of foundation pit face design reason based on BIM
It reads, has very important application in mountain tunnel hole, barrel open cut tunnel section and city tunnel open excavation section, be that tunnel BIM is set
An indispensable ring in meter, while also promoting application of the BIM technology in Tunnel Engineering.The method high degree of automation,
It is practical, there is apparent application value.
Detailed description of the invention
Fig. 1 is the tunnel open excavation section excavation of foundation pit face design method flow chart based on BIM.
Description of symbols in figure：
S1, tunnel open excavation section three-dimensional space line position is established
S2, tunnel open excavation section Digital Three-Dimensional landform is established
S3, open excavation section tunnel main structure model is established
S4, tunnel open excavation section excavation of foundation pit face control line is generated
S5, tunnel open excavation section excavation of foundation pit face slope line is generated
S6, excavation face is generated by highly controlling every grade of excavation face height
S7, excavation face is generated by every grade of excavation face height of high process control
S8, final excavation surface model is generated
S9, excavation face maximum cutting depth is read
Specific embodiment
It is described with reference to the specific technical solution of the present invention.It is of the present invention to be based on as shown in the flow chart of Fig. 1
The step of tunnel open excavation section excavation of foundation pit face design method of BIM includes：It establishes tunnel open excavation section three-dimensional space line position, establish tunnel
Road open excavation section Digital Three-Dimensional landform establishes open excavation section tunnel main structure model, generates the control of tunnel open excavation section excavation of foundation pit face
Line processed generates tunnel open excavation section excavation of foundation pit face and plays slope line, generate excavation face by highly controlling every grade of excavation face height, pass through
Every grade of excavation face height of high process control generates excavation face, generates final brush slope model, reads excavation face maximum cutting depth.
S1, tunnel open excavation section three-dimensional space line position is established
Support route is flat, vertical section generates route three-dimensional space curve under three-dimensional environment.
S2, tunnel open excavation section Digital Three-Dimensional landform is established
Ground actual measurement pile No. elevation data is relied on to generate three-dimensional space terrain surface under three-dimensional environment.
S3, open excavation section tunnel main structure model is established
Three-dimensional space line position is relied on to establish tunnel main tunnel structural model and cavern's structural model, as design open-cut foundation ditch bottom
The foundation on face excavation boundary.
S4, tunnel open excavation section excavation of foundation pit face control line is generated
It relies on tunnel main tunnel structural model and cavern's structural model to extract foundation pit bottom surface excavation face boundary Control line, and relies on
This control line generates excavation face and plays slope line.
S5, tunnel open excavation section excavation of foundation pit face slope line is generated
Tunnel open excavation section excavation of foundation pit face control line in S4 is excavated into size vertical according to foundation pit bottom surface actually required
In line position direction horizontal direction or vertically deviated, obtain excavation of foundation pit face plays slope line；
Generating tunnel open excavation section excavation of foundation pit face and playing the process of slope line (S5) is that will generate tunnel open excavation section foundation pit first and open
Excavation face control line in digging face control line (S4) does continual curvature operation within a certain error range, the curve name after operation
For C1, curve C1 is vertically projected in the horizontal plane, this projection line is named as C2, using the endpoint of C2 as starting point, in horizontal plane
On perpendicular to the direction of C2 one line segment is generated with desired horizontal-shift length, this line segment is named as C3, C3 along C2 sweeping at
Face, the outer edge in extraction sweeping face are the line after C2 horizontal-shift, this extracts line and is named as C4, by C1 vertically with vertical inclined
It moves distance and is drawn into face, the top line for extracting Extrude Face is line after C1 vertically deviate, this extraction line is named as C5, with C5
Endpoint be starting point, the line segment of a certain length is generated perpendicular to the direction of C5 in the horizontal plane, this line segment is named as C6, it is desirable that C6
In the same direction and C6 length is greater than C3 with C3, three-dimensional space curve is done continual curvature operation within a certain error range, after operation
Curve is named as C7, and along C7 sweeping at face, C4 is vertically projected on this sweeping face C6, and projection line is the slope of excavation face
Line.
S6, excavation face is generated by highly controlling every grade of excavation face height
Refer to that the height of certain level-one excavation face during generating excavation face is consistent, the excavation face series of generation is according to dimensionally
Shape situation automatically determines, minimum series when excavation face series takes it to intersect completely with landform face, and excavation face includes slope peace
Platform two parts, slope are controlled by height and depth-width ratio control, platform by plateau levels width and ratio of slope, and slope can be perpendicular
To platform can be level, certain level-one or what step can be controlled separately；
Excavation face (S6) is generated by highly controlling every grade of excavation face height, the generating process of certain level-one excavation face is,
The same level excavation face slope line is played first vertically to project in the horizontal plane, this projection line is named as C1, using the endpoint of C1 as starting point,
One line segment is generated with desired horizontal-shift length perpendicular to the direction of C1 in the horizontal plane, this line segment is named as C2, the edge C2
C1 sweeping is the line after projection line horizontal-shift at face, the outer edge in extraction sweeping face, this extracts line and is named as C3, by the same level
Excavation face plays slope line and is vertically drawn into face with vertical offset distance, and the top line for extracting Extrude Face is that the same level excavation face plays slope
Line vertically at a certain distance deviate after line, this extract line be named as C4, using the endpoint of C4 as starting point, in the horizontal plane vertically
The direction of slope line generates the line segment of a certain length in the same level excavation face, this line segment is named as C5, it is desirable that C5 and C2 are in the same direction and C5
Length is greater than C2, and three-dimensional space curve is done continual curvature operation within a certain error range, and the curve after operation is named as C6,
Along C6 sweeping at face, C3 is vertically projected on this sweeping face C5, and projection line is the whole slope line of the same level excavation face, relies on the same level
The slope the slope Xian Hezhong line that rises of excavation face generates the same level excavation face.
S7, excavation face is generated by every grade of excavation face height of high process control
The whole slope line elevation of certain level-one excavation face is consistent during generation excavation face, and the excavation face series of generation is according to three-dimensional
Topographic features automatically determine, minimum series when excavation face series takes it to intersect completely with landform face, excavation face include slope and
Platform two parts, slope are controlled by elevation and depth-width ratio, and platform is controlled by plateau levels width and ratio of slope, and slope can be
Vertically, platform can be level, certain level-one or what step can be controlled separately；
Excavation face (S7) is generated by every grade of excavation face height of high process control, the generating process of certain level-one excavation face is,
The same level excavation face slope line is played first vertically to project in the horizontal plane, this projection line is named as C1, using the endpoint of C1 as starting point,
One line segment is generated with desired horizontal-shift length perpendicular to the direction of C1 in the horizontal plane, this line segment is named as C2, the edge C2
C1 sweeping is the line after projection line horizontal-shift at face, the outer edge in extraction sweeping face, this extracts line and is named as C3, by the same level
Excavation face slope line is vertically stretched to the whole slope elevation of the same level excavation face requirement into face, and the top line for extracting Extrude Face is this
Grade excavation face plays the line that slope line is vertically generated by high process control, this extracts line and is named as C4, establishes in the endpoint of C4 horizontal
Face, C3 are vertically projected on this horizontal plane, and projection line is the whole slope line of the same level excavation face, and that relies on the same level excavation face plays slope
Line and whole slope line generate the same level excavation face.
S8, final excavation surface model is generated
It is cut, is obtained adaptable with practical dimensional topography face with excavation face of the three-dimensional space terrain surface to generation
Excavate surface model.
S9, excavation face maximum cutting depth is read
The maximum vertical height that surface model highest excavation point is finally excavated within the scope of excavation paragraph to corresponding slope point is read,
I.e. maximum cutting depth.
Claims (4)
1. a kind of tunnel open excavation section excavation of foundation pit face design method based on BIM, which is characterized in that include the following steps：It establishes
Tunnel open excavation section three-dimensional space line position (S1) establishes tunnel open excavation section Digital Three-Dimensional landform (S2), establishes open excavation section tunnel master
Body structural model (S3) generates tunnel open excavation section excavation of foundation pit face control line (S4), generates tunnel open excavation section excavation of foundation pit face and rises
Slope line (S5) generates excavation face (S6) by highly controlling every grade of excavation face height, passes through every grade of excavation face height of high process control
It generates excavation face (S7), generates final brush slope model (S8), read excavation face maximum cutting depth (S9)；
It is described to establish tunnel open excavation section three-dimensional space line position (S1), refer to that support route is put down, vertical section generates under three-dimensional environment
Route three-dimensional space curve；
It is described to establish tunnel open excavation section Digital Three-Dimensional landform (S2), refer to and relies on ground actual measurement pile No. elevation data in three-dimensional ring
Three-dimensional space terrain surface is generated under border；
It is described to establish open excavation section tunnel main structure model (S3), refer to and three-dimensional space line position is relied on to establish tunnel main tunnel structure mould
Type and cavern's structural model excavate the foundation on boundary as design open-cut foundation ditch bottom surface；
Generation tunnel open excavation section excavation of foundation pit face control line (S4) refers to and relies on tunnel main tunnel structural model and cavern's structure
Model extraction foundation pit bottom surface excavation face boundary Control line, and rely on this control line to generate excavation face and play slope line；
Slope line (S5) is played in the generation tunnel open excavation section excavation of foundation pit face, is referred to and is controlled tunnel open excavation section excavation of foundation pit face in (S4)
Line processed excavates size according to foundation pit bottom surface actually required and is deviated in the horizontal direction perpendicular to line position direction or vertically, obtains
Play slope line in excavation of foundation pit face；
It is described to generate excavation face (S6) by highly controlling every grade of excavation face height, refer to that certain level-one is opened during generating excavation face
The height in digging face is consistent, and the excavation face series of generation is automatically determined according to dimensional topography situation, and excavation face series takes itself and landform
Minimum series when face is intersected completely, excavation face include slope and platform two parts, and slope is put down by height and depth-width ratio control
Platform is controlled by plateau levels width and ratio of slope, slope can be it is vertical, platform can be it is horizontal, certain level-one or what step can
Individually control；
It is described that excavation face (S7) is generated by every grade of excavation face height of high process control, refer to that certain level-one is opened during generating excavation face
The whole slope line elevation in digging face is consistent, and the excavation face series of generation is automatically determined according to dimensional topography situation, and excavation face series takes it
Minimum series when intersecting completely with landform face, excavation face include slope and platform two parts, and slope passes through elevation and depth-width ratio
Control, platform are controlled by plateau levels width and ratio of slope, slope can be it is vertical, platform can be horizontal, certain level-one or several
Grade step can be controlled separately；
The generation is final to excavate surface model (S8), refers to and is cut with excavation face of the three-dimensional space terrain surface to generation,
Obtain the excavation surface model being adapted with practical dimensional topography face；
The reading excavation face maximum cutting depth (S9) refers to that finally excavating surface model highest within the scope of reading excavation paragraph opens
Point is dug to the corresponding maximum vertical height for playing slope point, i.e., maximum cutting depth.
2. a kind of tunnel open excavation section excavation of foundation pit face design method based on BIM according to claim 1, feature exist
In the generation tunnel open excavation section excavation of foundation pit face plays slope line (S5) process and is：Tunnel open excavation section foundation pit will be generated first to open
Excavation face control line in digging face control line (S4) does continual curvature operation within a certain error range, the curve name after operation
For C1, curve C1 is vertically projected in the horizontal plane, this projection line is named as C2, using the endpoint of C2 as starting point, in horizontal plane
On perpendicular to the direction of C2 one line segment is generated with desired horizontal-shift length, this line segment is named as C3, C3 along C2 sweeping at
Face, the outer edge in extraction sweeping face are the line after C2 horizontal-shift, this extracts line and is named as C4, by C1 vertically with vertical inclined
It moves distance and is drawn into face, the top line for extracting Extrude Face is line after C1 vertically deviate, this extraction line is named as C5, with C5
Endpoint be starting point, the line segment of a certain length is generated perpendicular to the direction of C5 in the horizontal plane, this line segment is named as C6, it is desirable that C6
In the same direction and C6 length is greater than C3 with C3, three-dimensional space curve is done continual curvature operation within a certain error range, after operation
Curve is named as C7, and along C7 sweeping at face, C4 is vertically projected on this sweeping face C6, and projection line is the slope of excavation face
Line.
3. a kind of tunnel open excavation section excavation of foundation pit face design method based on BIM according to claim 1, feature exist
In described to generate excavation face (S6) by highly controlling every grade of excavation face height, the generating process of level-one excavation face is：It is first
The same level excavation face is first played slope line vertically to project in the horizontal plane, this projection line is named as C1, using the endpoint of C1 as starting point,
One line segment is generated with desired horizontal-shift length perpendicular to the direction of C1 on horizontal plane, this line segment is named as C2, and C2 is along C1
Sweeping is the line after projection line horizontal-shift at face, the outer edge in extraction sweeping face, this extracts line and be named as C3, the same level is opened
Digging face plays slope line and is vertically drawn into face with vertical offset distance, and the top line for extracting Extrude Face is that the same level excavation face plays slope line
Vertically at a certain distance deviate after line, this extract line be named as C4, using the endpoint of C4 as starting point, in the horizontal plane perpendicular to
The direction that the same level excavation face plays slope line generates the line segment of a certain length, this line segment is named as C5, it is desirable that C5 and C2 is in the same direction and C5 long
Degree is greater than C2, three-dimensional space curve is done continual curvature operation within a certain error range, the curve after operation is named as C6, C5
Along C6 sweeping at face, C3 is vertically projected on this sweeping face, and projection line is the whole slope line of the same level excavation face, and the same level is relied on to open
The slope the slope Xian Hezhong line that rises in digging face generates the same level excavation face.
4. a kind of tunnel open excavation section excavation of foundation pit face design method based on BIM according to claim 1, feature exist
In described to generate excavation face (S7) by every grade of excavation face height of high process control, the generating process of level-one excavation face is, first
The same level excavation face is first played slope line vertically to project in the horizontal plane, this projection line is named as C1, using the endpoint of C1 as starting point,
One line segment is generated with desired horizontal-shift length perpendicular to the direction of C1 on horizontal plane, this line segment is named as C2, and C2 is along C1
Sweeping is the line after projection line horizontal-shift at face, the outer edge in extraction sweeping face, this extracts line and be named as C3, the same level is opened
Digging face slope line is vertically stretched to the whole slope elevation of the same level excavation face requirement into face, and the top line for extracting Extrude Face is the same level
Excavation face plays the line that slope line is vertically generated by high process control, this extracts line and is named as C4, establishes horizontal plane in the endpoint of C4,
C3 is vertically projected on this horizontal plane, and projection line is the whole slope line of the same level excavation face, and that relies on the same level excavation face plays slope line
The same level excavation face is generated with whole slope line.
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| CN110259458A (en) * | 2019-07-01 | 2019-09-20 | 中铁七局集团有限公司 | The construction method that small-clear-distance tunnel Shallow Section double -side approach excavates |
| CN112163249A (en) * | 2020-07-29 | 2021-01-01 | 长江勘测规划设计研究有限责任公司 | Construction method of full-parametric three-dimensional model structure of hydraulic construction excavation slope |
| CN112528382A (en) * | 2020-12-21 | 2021-03-19 | 黄河勘测规划设计研究院有限公司 | Three-dimensional automatic excavation design method for flat carriageway of multistage platform |
| CN114861287A (en) * | 2022-06-30 | 2022-08-05 | 墨斗(天津)科技有限公司 | BIM-based parametric design method for open excavation section of tunnel structure |
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| CN112528382B (en) * | 2020-12-21 | 2023-09-26 | 黄河勘测规划设计研究院有限公司 | Design method for three-dimensional automatic excavation of parallel horse road of multi-stage platform |
| CN114861287A (en) * | 2022-06-30 | 2022-08-05 | 墨斗(天津)科技有限公司 | BIM-based parametric design method for open excavation section of tunnel structure |
| CN114861287B (en) * | 2022-06-30 | 2022-10-28 | 墨斗(天津)科技有限公司 | BIM-based tunnel structure open cut section parametric design method |
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