CN110284465A - Arch dam pour construction control method - Google Patents
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/08—Wall dams
- E02B7/12—Arch dams
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
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Abstract
The present invention relates to field of water conservancy arch dam construction control method, especially a kind of arch dam pour construction control method.Technical problem to be solved by the invention is to provide a kind of spatial parameters that can fast and accurately determine arch dam pour, to complete the arch dam pour construction control method of Arch Dam Structure construction, comprising the following steps: a, carry out shape design of arch dams parameter curve first；B, the calculating of shape design of arch dams coordinate is secondly carried out；The vertical face c and arch ring upstream and downstream face intersecting point coordinate formula: c, vertical face and arch ring upstream and downstream face intersecting point coordinate formula；D, vertical face upstream face minimum point coordinate calculates after upstream face corner cut: e, the parameter finally obtained using above-mentioned steps, CAD diagram shape is converted to by DXF file, the plan view, radial cutaway view and arch dam three-dimensional schematogram of arch dam pour point are obtained, and constructing operation is carried out by acquired structural information.Present invention is particularly suitable among the construction of Hydropower Dam arch dam pour.
Description
Technical field
The present invention relates to field of water conservancy arch dam construction control methods, especially a kind of arch dam pour Construction control side
Method.
Background technique
The damming experience abundant of forefathers' accumulation and the development of science and technology, so that arch dam line style becomes more diverse.It throws
Object line arch has obtained extensively in China in recent years because its parameter is readily selected, adapts to the features such as river valley ability is strong, stress condition is good
Using in the Xiluodu Project built also using parabolic arch as recommendation dam shape.
The basic skills of arch dam geometric design is required according to the landform of dam site, geological conditions and project playout etc., first really
Surely elevation is controlled, arch crown section is drafted and controls the geometry of arch ring, then to determine that every geometric parameter changes along elevation more
The undetermined coefficient of Xiang Shizhong, and then determine the arch ring shape of any elevation.Parabola dome dam dam type space analysis relationship is multiple
It is miscellaneous, the space coordinate of arch dam pour cannot be calculated with simple linear interpolation.Traditional method is to calculate by hand, workload
It is big and time-consuming.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of skies that can fast and accurately determine arch dam pour
Between parameter, thus complete Arch Dam Structure construction arch dam pour construction control method.
The technical solution adopted by the present invention to solve the technical problems is: arch dam pour construction control method, including with
Lower step:
A, shape design of arch dams parameter curve is carried out first, and wherein the control parameter of vault subsidence section is vault subsidence upstream dam
The control parameter of surface curve and arch crown cantilever thickness Tc, horizontal arch ring are arch abutment X, Y coordinates, arch ring radius of curvature R and central angle:
(1) vault subsidence parameter fitting:
Vault subsidence upstream Dam Surface Curve, arch crown cantilever thickness Tc along elevation any point use cubic curve interpolation fitting,
Fitting formula are as follows:
Tc(z)=t0+t1*z+t2*z2+t3*z3
Au(z)=a0+a1*z+a2*z2+a3*z3
In formula, Au(z)-it is each calculate elevation arch crown section upstream millet cake to the axis of dam distance；
Tc(z)-each calculating elevation arch crown arch is thick；
(2) plane arch ring parameter fitting
The X-coordinate at arch abutment upstream and downstream any point, using along elevation linear interpolation between Discrete control elevation, fitting is public
Formula are as follows:
xi=x2+(zi-z2)*(x1-x2)/(z1-z2)
Arch ring radius of curvature R along elevation any point uses cubic curve interpolation fitting, fitting formula along elevation segmentation
Are as follows:
Ri=r0+r1*z+r2*z2+r3*z3；
B, the calculating of shape design of arch dams coordinate is secondly carried out:
(1) coordinate of plane arch ring upstream and downstream millet cake calculates
(a) plane arch ring arch abutment coordinate
The arch abutment coordinate (x1, z1) of known two control elevation arch ring, (x2, z2) is then any between two control elevations
The arch abutment coordinate of elevation z arch ring are as follows:
X=x2-(x2-x1)(z2-z)/(z2-z1)
Upstream and downstream millet cake Y-coordinate calculation formula is respectively as follows:
yu=Au(z)+d-x2/2R(z)
yd=Au(z)+d-Tc(z)
In formula, the distance of d- vault subsidence section arch crown point to x-axis；
(b) other coordinate points on plane arch ring: known arch abutment coordinate sits up straight mark to non-looping, by arch abutment x coordinate N equal part,
Utilize parabolic equation y=YA-x2/ 2R successively finds out non-looping and sits up straight punctuate；
(2) coordinate of plane arch ring upstream face arch abutment point calculates after upstream face corner cut
(a) arch center line point coordinate
Arch center line point coordinate (xc, yc) acquired by the coordinate of upstream and downstream millet cake:
xc=(xu+xd)/2；yc=(yu+yd)/2
(b) upstream corner cut line equation
Known two elevations z1、z2Arch abutment upstream corner cut α1、α2, then the arch abutment upstream corner cut of any elevation z between two elevations
α are as follows:
α=α1+(α2-α1)(z-z1)/(z2-z1)
The slope of the left and right bank corner cut line in upstream is respectively as follows:
kl=tg (α1+(α2-α1)(z-z1)/(z2-z1)+arctg((yu-yd)/(xu-xd)))
kr=-tg (α1+(α2-α1)(z-z1)/(z2-z1)+arctg((yu-yd)/(xu-xd)))
The left and right bank corner cut line equation in upstream are as follows:
y-yc=k (x-xc)
(c) intersecting point coordinate of arch ring upstream corner cut line and upstream surface curve
Y=yc+k(x-xc)
In above formula, left bank takes "+", and right bank takes "-"；
C, vertical face and arch ring upstream and downstream face intersecting point coordinate formula:
The intersection point that face and face are asked using the tangential equation of arch ring parabolic equation and vertical face asks vertical face using the method for approaching
With arch ring upstream and downstream face intersecting point coordinate；
D, vertical face upstream face minimum point coordinate calculates after upstream face corner cut:
First tentative calculation goes out two elevational points up and down of intersection point lowest elevation, then calculates intersection point lowest elevation with the method that approaches；
E, the parameter finally obtained using above-mentioned steps is converted to CAD diagram shape by DXF file, obtains arch dam pour
Plan view, radial cutaway view and the arch dam three-dimensional schematogram of point, and constructing operation is carried out by acquired structural information.
The beneficial effects of the present invention are: the present invention constructs obtained control point parameter and undetermined coefficient etc. according to the bodily form,
Creative realizes arch dam pour point parameter fitting, and the pour point coordinate calculating of arch dam and drawing is made to realize computer
Change.Pour point coordinate provided by the present invention solves and sectional view draws application program and not only ensure that construction precision, but also
Construction efficiency is substantially increased, is particularly suitable among the construction of Hydropower Dam arch dam pour.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of arch dam left bank and right case of the present invention.
Fig. 2 is the three dimensional structure diagram of arch dam left bank and right case of the present invention.
Fig. 3 is vault subsidence section arrangement and parameter agreement schematic diagram of the invention.
Fig. 4 is the basic bodily form of arch dam of the invention and reference axis agreement schematic diagram.
Fig. 5 is the basic bodily form of arch dam of the invention and reference axis agreement schematic diagram.
In the figure, it is marked as right bank 1, left bank 2, the axis of dam 3.
Specific embodiment
Arch dam pour building method, comprising the following steps: a, carry out shape design of arch dams parameter curve, hogging first
The control parameter of crown beam section is vault subsidence upstream Dam Surface Curve and arch crown cantilever thickness Tc, and the control parameter of horizontal arch ring is arch abutment
X, Y coordinates, arch ring radius of curvature R and central angle:
(1) vault subsidence parameter fitting:
Vault subsidence upstream Dam Surface Curve, arch crown cantilever thickness Tc along elevation any point use cubic curve interpolation fitting,
Fitting formula are as follows:
Tc(z)=t0+t1*z+t2*z2+t3*z3
Au(z)=a0+a1*z+a2*z2+a3*z3
In formula, Au(z)-it is each calculate elevation arch crown section upstream millet cake to the axis of dam distance；
Tc(z)-each calculating elevation arch crown arch is thick；
(2) plane arch ring parameter fitting
The X-coordinate at arch abutment upstream and downstream any point, using along elevation linear interpolation between Discrete control elevation, fitting is public
Formula are as follows:
xi=x2+(zi-z2)*(x1-x2)/(z1-z2)
Arch ring radius of curvature R along elevation any point uses cubic curve interpolation fitting, fitting formula along elevation segmentation
Are as follows:
Ri=r0+r1*z+r2*z2+r3*z3；
B, the calculating of shape design of arch dams coordinate is secondly carried out:
(1) coordinate of plane arch ring upstream and downstream millet cake calculates
(a) plane arch ring arch abutment coordinate
The arch abutment coordinate (x1, z1) of known two control elevation arch ring, (x2, z2) is then any between two control elevations
The arch abutment coordinate of elevation z arch ring are as follows:
X=x2-(x2-x1)(z2-z)/(z2-z1)
Upstream and downstream millet cake Y-coordinate calculation formula is respectively as follows:
yu=Au(z)+d-x2/2R(z)
yd=Au(z)+d-Tc(z)
In formula, the distance of d- vault subsidence section arch crown point to x-axis；
(b) other coordinate points on plane arch ring: known arch abutment coordinate sits up straight mark to non-looping, by arch abutment x coordinate N equal part,
Utilize parabolic equation y=YA-x2/ 2R successively finds out non-looping and sits up straight punctuate；
(2) coordinate of plane arch ring upstream face arch abutment point calculates after upstream face corner cut
(a) arch center line point coordinate
Arch center line point coordinate (xc, yc) acquired by the coordinate of upstream and downstream millet cake:
xc=(xu+xd)/2；yc=(yu+yd)/2
(b) upstream corner cut line equation
Known two elevations z1、z2Arch abutment upstream corner cut α1、α2, then the arch abutment upstream corner cut of any elevation z between two elevations
α are as follows:
α=α1+(α2-α1)(z-z1)/(z2-z1)
The slope of the left and right bank corner cut line in upstream is respectively as follows:
kl=tg (α1+(α2-α1)(z-z1)/(z2-z1)+arctg((yu-yd)/(xu-xd)))
kr=-tg (α1+(α2-α1)(z-z1)/(z2-z1)+arctg((yu-yd)/(xu-xd)))
The left and right bank corner cut line equation in upstream are as follows:
y-yc=k (x-xc)
(c) intersecting point coordinate of arch ring upstream corner cut line and upstream surface curve
Y=yc+k(x-xc)
In above formula, left bank 2 takes "+", and right bank 1 takes "-"；
C, vertical face and arch ring upstream and downstream face intersecting point coordinate formula:
The intersection point that face and face are asked using the tangential equation of arch ring parabolic equation and vertical face asks vertical face using the method for approaching
With arch ring upstream and downstream face intersecting point coordinate；
D, vertical face upstream face minimum point coordinate calculates after upstream face corner cut:
First tentative calculation goes out two elevational points up and down of intersection point lowest elevation, then calculates intersection point lowest elevation with the method that approaches；
E, the parameter finally obtained using above-mentioned steps is converted to CAD diagram shape by DXF file, obtains arch dam pour
Plan view, radial cutaway view and the arch dam three-dimensional schematogram of point, and constructing operation is carried out by acquired structural information.
The present invention is calculated using the point coordinate of used optimization pour, and the friendship that can efficiently solve transverse joint and foundation plane is sat
Mark etc.；And arch dam CAD arch ring plan view and transverse joint sectional view can be drawn, to design and construction provides required parameter and figure,
And quick accurate operating method finally is provided for the solution of pour point coordinate and sectional view drafting.
In Hydroelectric Project Construction, basic Parameter setting step is more approximate, but required by the utilization and use for parameter
Parameter carry out Engineering Guidance, be to need creative labor.The arch abutment asked before that is utilized of the invention is sat
The parameters such as upstream minimum point coordinate after mark, radius of curvature and central angle, corner cut, and this parameters in series is finally used for arch dam and is poured
It builds among the construction of block, realizes construction requirement well, it is believed that the present invention has very wide market promotion prospect.
Claims (1)
1. arch dam pour construction control method, it is characterised in that Construction control is carried out using arch dam pour control point, including
Following steps:
A, shape design of arch dams parameter curve is carried out first, and wherein the control parameter of vault subsidence section is that vault subsidence upstream dam facing is bent
The control parameter of line and arch crown cantilever thickness Tc, horizontal arch ring are arch abutment X, Y coordinates, arch ring radius of curvature R and central angle:
(1) vault subsidence parameter fitting:
Vault subsidence upstream Dam Surface Curve, arch crown cantilever thickness Tc along elevation any point use cubic curve interpolation fitting, fitting
Formula are as follows:
Tc(z)=t0+t1*z+t2*z2+t3*z3
Au(z)=a0+a1*z+a2*z2+a3*z3
In formula, Au(z)-it is each calculate elevation arch crown section upstream millet cake to the axis of dam distance；
Tc(z)-each calculating elevation arch crown arch is thick；
(2) plane arch ring parameter fitting
The X-coordinate at arch abutment upstream and downstream any point, using along elevation linear interpolation, fitting formula between Discrete control elevation are as follows:
xi=x2+(zi-z2)*(x1-x2)/(z1-z2)
Arch ring radius of curvature R along elevation any point uses cubic curve interpolation fitting, fitting formula along elevation segmentation are as follows:
Ri=r0+r1*z+r2*z2+r3*z3；
B, the calculating of shape design of arch dams coordinate is secondly carried out:
(1) coordinate of plane arch ring upstream and downstream millet cake calculates
(a) plane arch ring arch abutment coordinate
The arch abutment coordinate (x1, z1) of known two control elevation arch ring, (x2, z2) then two control any elevation z between elevations
The arch abutment coordinate of arch ring are as follows:
X=x2-(x2-x1)(z2-z)/(z2-z1)
Upstream and downstream millet cake Y-coordinate calculation formula is respectively as follows:
yu=Au(z)+d-x2/2R(z)
yd=Au(z)+d-Tc(z)
In formula, the distance of d- vault subsidence section arch crown point to x-axis；
(b) other coordinate points on plane arch ring: known arch abutment coordinate sits up straight mark to non-looping, and arch abutment x coordinate N equal part utilizes
Parabolic equation y=YA-x2/ 2R successively finds out non-looping and sits up straight punctuate；
(2) coordinate of plane arch ring upstream face arch abutment point calculates after upstream face corner cut
(a) arch center line point coordinate
Arch center line point coordinate (xc,yc) acquired by the coordinate of upstream and downstream millet cake:
xc=(xu+xd)/2；yc=(yu+yd)/2
(b) upstream corner cut line equation
Known two elevations z1、z2Arch abutment upstream corner cut α1、α2, then the arch abutment upstream corner cut α of any elevation z between two elevations are as follows:
α=α1+(α2-α1)(z-z1)/(z2-z1)
The slope of the left and right bank corner cut line in upstream is respectively as follows:
kl=tg (α1+(α2-α1)(z-z1)/(z2-z1)+arctg((yu-yd)/(xu-xd)))
kr=-tg (α1+(α2-α1)(z-z1)/(z2-z1)+arctg((yu-yd)/(xu-xd)))
The left and right bank corner cut line equation in upstream are as follows:
y-yc=k (x-xc)
(c) intersecting point coordinate of arch ring upstream corner cut line and upstream surface curve
Y=yc+k(x-xc)
In above formula, left bank (2) take "+", and right bank (1) takes "-"；
C, vertical face and arch ring upstream and downstream face intersecting point coordinate formula:
The intersection point that face and face are asked using the tangential equation of arch ring parabolic equation and vertical face asks vertical face and arch using the method for approaching
Enclose upstream and downstream face intersecting point coordinate；
D, vertical face upstream face minimum point coordinate calculates after upstream face corner cut:
First tentative calculation goes out two elevational points up and down of intersection point lowest elevation, then calculates intersection point lowest elevation with the method that approaches；
E, the parameter finally obtained using above-mentioned steps is converted to CAD diagram shape by DXF file, obtains arch dam pour point
Plan view, radial cutaway view and arch dam three-dimensional schematogram, and constructing operation is carried out by acquired structural information.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112257153A (en) * | 2020-10-20 | 2021-01-22 | 黄河勘测规划设计研究院有限公司 | Arch dam chord length calculation method and system |
| CN112528217A (en) * | 2020-12-22 | 2021-03-19 | 中电建十一局工程有限公司 | Parabolic same-layer equal-thickness arch dam measurement lofting calculation method |
| CN113761637A (en) * | 2021-09-26 | 2021-12-07 | 中国电建集团成都勘测设计研究院有限公司 | Method for designing arch dam body |
| CN113761638A (en) * | 2021-09-26 | 2021-12-07 | 中国电建集团成都勘测设计研究院有限公司 | Method for designing arch dam body |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073768A (en) * | 2011-01-13 | 2011-05-25 | 中国水电顾问集团成都勘测设计研究院 | Automatic arch dam pouring block plotting device and plotting method |
| CN109241551A (en) * | 2018-07-11 | 2019-01-18 | 武汉大学 | The persistence method of arch dam pouring construction simulation object |
-
2019
- 2019-06-28 CN CN201910574895.2A patent/CN110284465A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073768A (en) * | 2011-01-13 | 2011-05-25 | 中国水电顾问集团成都勘测设计研究院 | Automatic arch dam pouring block plotting device and plotting method |
| CN109241551A (en) * | 2018-07-11 | 2019-01-18 | 武汉大学 | The persistence method of arch dam pouring construction simulation object |
Non-Patent Citations (1)
| Title |
|---|
| 赵艳等: "抛物线形双曲拱坝体型参数拟合及其在溪洛渡工程中的应用", 《水电站设计》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112257153A (en) * | 2020-10-20 | 2021-01-22 | 黄河勘测规划设计研究院有限公司 | Arch dam chord length calculation method and system |
| CN112257153B (en) * | 2020-10-20 | 2023-08-01 | 黄河勘测规划设计研究院有限公司 | Arch dam chord length calculation method and system |
| CN112528217A (en) * | 2020-12-22 | 2021-03-19 | 中电建十一局工程有限公司 | Parabolic same-layer equal-thickness arch dam measurement lofting calculation method |
| CN113761637A (en) * | 2021-09-26 | 2021-12-07 | 中国电建集团成都勘测设计研究院有限公司 | Method for designing arch dam body |
| CN113761638A (en) * | 2021-09-26 | 2021-12-07 | 中国电建集团成都勘测设计研究院有限公司 | Method for designing arch dam body |
| CN113761638B (en) * | 2021-09-26 | 2022-12-06 | 中国电建集团成都勘测设计研究院有限公司 | Method for designing arch dam body shape |
| CN113761637B (en) * | 2021-09-26 | 2023-06-27 | 中国电建集团成都勘测设计研究院有限公司 | Method for designing arch dam body shape |
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