CN108446473B - Hydropower station inclined shaft excavation and overbreak inspection method - Google Patents
Hydropower station inclined shaft excavation and overbreak inspection method Download PDFInfo
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Abstract
The invention discloses a hydropower station inclined shaft excavation and overbreak inspection method, which belongs to the field of hydropower station inclined shaft quality control, and is applied to a Cassieo 4800 or Cassieo 4850 calculator, and a construction coordinate system with the mileage as x and the line width as y is adopted; the method is mainly applied to construction lofting before excavation (lofting of peripheral positions during installation of pressure steel pipes) of a pressure pipeline inclined shaft part of a hydropower station, and over excavation or under excavation inspection and processing measurement after peripheral excavation is well performed. After the inspection method is adopted, the geodetic coordinates are collected through a field total station, then the geodetic coordinates are returned to an office, a computer is used for displaying points according to the coordinates, and then the design is compared, and the super-short excavation is observed; at present, the result of the over-under excavation is calculated by a calculator through field measurement, and the aim of solving the problem of the over-under excavation on site in time is fulfilled.
Description
Technical Field
The invention relates to the field of pipeline excavation and over-under-excavation inspection of an upper bent section, a straight pipe section and a lower bent section of a hydropower station inclined shaft, in particular to an inclined shaft excavation and over-under-excavation inspection method of a hydropower station.
Background
In the excavation work of the inclined shaft of the hydropower station, the excavation is a key process in the construction of the inclined shaft of the hydropower station, the excess and deficiency are excessive, the construction cost is improved due to the increase of the slag discharge and the lining quantity, the local excess and deficiency excavation can generate stress concentration to influence the stability, the deficiency excavation directly influences the quality of the inclined shaft, the treatment is time-consuming and labor-consuming, and the excess and deficiency excavation must be controlled well so as to be beneficial to the normal operation of the subsequent construction process.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hydropower station inclined shaft excavation and overbreak and underbreak inspection method, which can immediately calculate an overbreak and underbreak result through a calculator by field measurement so as to achieve the aim of solving the problem of onsite overbreak and underbreak in time.
In order to solve the technical problems, the invention adopts the technical scheme that:
a hydropower station inclined shaft excavation and overbreak inspection method comprises the following steps: the inspection method is applied to a calculator of Cassieo 4800 or Cassieo 4850, and takes a construction coordinate system with the mileage as x and the line width as y;
setting:
if N is 0, inputting calculation data; n is not equal to 0, and a lofting program is input;
known data X0When S > 0, represents an upper flat section, when Z < 0, represents a straight line section, and when X > 0, represents a lower flat section; the x coordinate of the measuring station represents a starting point, namely starting mileage, lofting of an upper bending section and a lower bending section is carried out when the starting point is positive, and lofting of a straight pipe section is carried out when the starting point is negative;
k0(QIE, DIAN) represents the starting point stake number, H (QIE, DIAN) represents the starting point centroid elevation;
a (s is more than 0, z is less than 0, x is less than 0) represents the central angle of the upper bent pipe, when the angle A is positive, the lofting of the upper bent pipe is performed, the upper flat section longitudinal gradient value is less than or equal to negative when the downslope is negative, and positive when the upslope is positive; when the angle A is negative, performing lower bent pipe and straight pipe section lofting, wherein the angle value is the longitudinal slope angle of the straight pipe section of the inclined shaft;
x (QIE, DIAN) represents the X coordinate of the construction coordinate system at the tangent point; KZ (ZONG, DIAN) represents the end mileage at which a straight section loft is taken; r represents the pressure pipe radius; l represents the radius of the upper bent pipe section or the lower bent pipe section; x, Y, representing a lofting point construction coordinate system, and lofting design data according to design requirements; h represents lofting point elevation; k0+ represents the loft mileage; wa denotes undermining; wa denotes overbreak;
or represents a value of moving left and right in direction, respectively; lm represents the parallel distance of the movement of D on the central pile number; h ^ or hv respectively represents elevation up-down movement values, wherein h represents elevation data, h ^ represents elevation upwards, hv represents elevation downwards, and oblique length data from a lofting point to the circle center during Lm excavation;
o represents a tangent point of an x (QIE, DIAN) coordinate in the construction coordinate system, and lofting is carried out on an upper bent section and a lower bent section when the tangent point is positive and on a straight pipe section when the tangent point is negative; q represents the pile number of the starting point of the tangent point; z represents the elevation of the starting point of the tangent point; RB represents turning radius data of the excavated construction pipeline; abs represents an absolute value; c represents a positive angle in the program calculator; pol represents a formula for calculating polar coordinates from known coordinates;
step 1: when the condition N is equal to zero, the known data O, Q, Z, RB needs to be input, the radius of the curve needs to be input, and then the white triangle is input, which indicates whether the previous condition is satisfied or not; if the conditions are met, continuously inputting the bevel angle A of the inclined shaft, pushing out to E when the angle A is positive and larger than zero, performing a pipe bending program, and then inputting a white triangle to represent to judge whether the conditions are met;
step 2: if the condition that N is not 0 in the step 1 is not met, the lower bent pipe and the straight pipe section are lofted when N is less than zero, and the data of the starting point tangent point of the straight pipe section or the lower bent section are input; after the input white triangle representation is judged and determined, entering the next step;
and step 3: c is equal to an absolute value A, u is equal to the radius, a limit angle is calculated by using a { } frame aiming at three measured variables, the positive and negative are judged, when the angle is smaller than zero, the azimuth angle plus 360 degrees is a positive value, and the product of the cosine value and the length of the value obtains the pile number of the measuring point;
and 4, step 4: if O is less than zero; deducing the inclination angle A when the azimuth angle J minus 90 degrees is subtracted, and simultaneously multiplying the distance by sine; u is equal to zero, and the pile number is obtained by adding the distance to the tangent point pile number and multiplying the distance by the cosine azimuth angle; inputting goto2 and a white triangle to show that the position enters the second calculation, and after judging the position by the white triangle, entering the next calculation;
and 5: a is greater than zero, the derived azimuth is equal to S-J; if the condition that A is larger than zero is not met, the exit azimuth angle is equal to J-C, and then a white triangle is input to indicate that judgment and selection are needed to be carried out at the place;
step 6: if M is equal to the azimuth angle J and J is smaller than zero, deducing the azimuth angle plus 360 degrees, calculating W and J after proper judgment, directly obtaining that J is changed into-J when M is smaller than zero, inputting white triangle judgment, deducing that J is equal to-J if M is larger than 180, and then calculating through K-Q +2 pi LJ/360 to obtain the stake number K; meanwhile, when A is larger than zero, M is equal to J minus 180 minus S, if not, M is equal to C minus J, and then white triangle input is displayed for judgment; the number of the K stub is larger than the number B of the starting stub, the goto1 is pushed out to enter one-step calculation, and the white triangle indicates that judgment is needed;
and 7: fix3 indicates that 3 decimal places are reserved in the following display, and K "ko +" indicates that K is shown when calculated here0Visually representing stake numbers, wherein quotation marks represent contents to be displayed; the black triangle indicates that the stake number k needs to be displayed after the calculation; the white triangles and the black triangles are arranged behind the display screen, and the black triangles are marked when the conditions are met after the judgment.
Compared with the prior art, the invention has the beneficial effects that: originally, the geodetic coordinates are collected through a field total station, then the geodetic coordinates are returned to an office, points are spread on a computer according to the coordinates, and then the geodetic coordinates are compared with a design and the super-underput is seen. At present, the result of the over-under excavation is calculated by a calculator through field measurement, and the aim of solving the problem of the over-under excavation on site in time is fulfilled.
Detailed Description
The method is applied to a calculator of Cassie Europe 4800 or Cassie Europe 4850, and mainly considers construction layout before excavation (layout of peripheral positions when pressure steel pipes are installed) of a pressure pipeline inclined shaft part of a hydropower station, and inspection and treatment measurement of over excavation or under excavation after peripheral excavation are carried out, wherein a construction coordinate system with the mileage as x and the line width as y is required during use.
In the method, if N is 0, starting calculation data is input; and N is not equal to 0, and the lofting program is input.
Known data X0(S＞0 (upper flat section), Z < 0 (straight line section), X > 0 (lower flat section)), measuring the X coordinate (unit meter) (starting point), lofting the upper and lower bent sections when the X coordinate is positive, and lofting the straight section when the X coordinate is negative.
K0(QIE, DIAN) (origin point stake number (pressure pipe distance (unit meter) at tangent point), H (QIE, DIAN) (origin point centroid elevation (unit meter)).
A (s is more than 0, z is less than 0, x is less than 0) the central angle of the upper bent pipe (radian 10 system is used), when the angle A is positive, the lofting of the upper bent pipe is performed and is less than or equal to, the longitudinal gradient value of the upper flat section, the downhill is negative, and the uphill is positive (decimal 10 system, which can not use the degree'; and (4) performing lower bent pipe and straight pipe section lofting when the angle A is negative (the angle value at this time is the longitudinal slope angle of the straight pipe section of the inclined shaft).
X coordinate (in meters) of the construction coordinate system at the X (qi. dian) tangent point; KZ (zong. dian) end mileage when straight section lofting is performed; r is the pressure pipeline radius (m); l is the radius of the upper bent pipe section or the lower bent pipe section; x, Y is a lofting point construction coordinate system (i.e. measured coordinates); h is lofting point elevation (measured point elevation); k0+ is the lofting point mileage (actual measurement point mileage stake mark); QIAN.WA is under-cut, and CAO.WA is over-cut; if is left and right moving value; lm is the parallel distance of the movement of D on the central pile number; h ^ or hv is elevation up-down movement value, and oblique length data from lofting point to circle center during excavation.
Note that the coordinates of each part of the inclined shaft are unified, and the coordinates must be converted into a unified coordinate system for lofting. (1) The mileage of the inclined shaft on the vertical section is increased along with the curve of the bent pipe and the slope line of the straight pipe, and the construction coordinate system is a planar system. Must be converted to each other to use the program; (2) in the conversion, the tangent point range of the straight pipe section and the downward bending section must be converted into an x (QIE, DIAN) tangent point which is a coordinate in the construction coordinate system.
The lofting slant program edits the inputs, which must be entered on a 4800 or 4850 calculator according to these symbols, which cannot be different, including the steps of:
step 1, when condition N is satisfied equal to zero, known data O, Q, Z, RB needs to be input. Knowing the coordinates of the pile number of the starting point, the pile number data of the starting point and the pile number data of the end point, if the pile number of the starting point is larger than zero, inputting the radius of the curve, and then inputting a white triangle to show whether the conditions are met or not; if the conditions are met, continuously inputting the bevel angle A of the inclined shaft, pushing out to E when the angle A is positive and larger than zero, performing a pipe bending program, and then inputting a white triangle to represent and judge whether the conditions are met.
And 2, if the condition that N is not 0 in the step 1 is not met, lofting the lower bent pipe and the straight pipe section when N is less than zero, and inputting starting point tangent point data of the straight pipe section or the lower bent section. After the input white triangle indicates a judgment determination, the next step is proceeded.
And 3, enabling C to be equal to an absolute value A (the angle value is positive and the subsequent calculation and input are carried out), enabling u to be equal to the radius, using { } frames for three measured variables, repeatedly inputting, using POL (), (POL represents a formula for calculating polar coordinates by known coordinates), calculating an image limit angle, judging whether the angle is positive or negative, adding 360 degrees to an azimuth angle to be a positive value when the angle is smaller than zero, and obtaining the pile number of the measured point by the product of the cosine value and the length of the value.
Step 4, if O (O represents the calculated azimuth angle) is less than zero, deducing the distance of subtracting 90 degrees from the azimuth angle J and subtracting the inclination angle A (equal to C character after the absolute value of the inclination angle A is given before) and multiplying the distance by sine; u equals zero, resulting in the peg number (tangent point peg number plus distance multiplied by cosine azimuth). The input goto2 and the white triangle indicate where to go to the second calculation, and the white triangle determines the position to go to the next calculation.
Step 5, A is larger than zero, and the derived azimuth angle is equal to S-J; if A is not satisfied, the condition that the azimuth angle is equal to J-C is deduced, and then a white triangle is input to indicate that judgment selection is needed at the position.
Step 6, if M is equal to the azimuth angle J and J is smaller than zero, deducing the azimuth angle plus 360 degrees, calculating W and J after proper judgment, directly obtaining that J is changed into-J when M is smaller than zero, and deducing that J is equal to-J if M is larger than 180 after white triangle judgment is input; the stake number K is then calculated by K ═ Q +2 pi LJ ÷ 360. While A is greater than zero, deducing M equals J minus 180 minus S, if not, deducing M equals C minus J and white triangle input is displayed where a decision is made. The K peg number is larger than the starting peg number B to push goto1 to enter a one-step calculation, and the white triangle indicates that judgment is also needed here.
Step 7, fix3 indicates that 3 decimal places are reserved in the following display, and K "ko +" indicates that K is displayed when this is calculated0Visually representing stake numbers, and using quotation marks to represent the objects to be displayed; the black triangle means that k (stake number) needs to be displayed after calculation, white triangles are arranged behind the black triangles, and the black triangles are marked when the conditions are met after judgment and the calculation needs to be displayed.
In the weight, in the step 1, O represents an x (QIE, DIAN) tangent point which is a coordinate in a construction coordinate system, the x coordinate of a survey station is a starting point (unit meter), lofting is carried out on an upper bent section and a lower bent section when the starting point is positive, and lofting is carried out on a straight section when the starting point is negative. Q is the pile number of the starting point of the tangent point, Z is the elevation of the starting point of the tangent point, RB is the turning radius data of the excavated construction pipeline, abs is an absolute value, C is an angle which is positive in a program calculator, the angle is positive and negative in a drawing generally, the negative number represents the X coordinate (unit meter) of a construction coordinate system at the X (QIE.
The following presents a detailed example of the inspection method of the present invention.
N＝0＝＞O″X0(S＞0.Z＜0.X＞0)″Q″K0(QIE DIAN)″Z″H(QIE DIAN)″RB″KZ(ZONGDIAN)″O＞0＝＞L″L(BA JIN)″△A″A(S＞0.Z＜0.X＜0)″＞0＝＞E″≥″△A＜0＝＞E＝3＝＞V＝Q:≠＝＞V″X(QIE DIAN)″△C＝absA△[b]1：fixm：U＝L：{XYH}:POL(X-V,Y):J＜0＝＞J＝J+360△K＝ICOSJ：J＜0＝＞J+360△A＞0＝＞POL(10，10E)：S＝180-J△POL(H-Z,K)：J＜0＝＞J＝J+360△O＜0＝＞J＝J-90-C:W＝IsinJ:U＝0：K＝Q+IcosJ:M＝C:GOTO2△A＞0＝＞J＝S-J：≠＝＞J＝J-C△M＝J:J＜0＝＞J＝J+360△W＝√(I2+L2-2ILcosJ)：J＝COS-1((L2+W2-I2)÷2÷L÷W)：M＜0＝＞J＝-J△M＞180＝＞J＝-J△K＝Q+2πLJ÷360：A＞0＝＞M＝J-(180-S)：≠＝＞M＝C-J△[b]2：K＞B＝＞goto1△fix3：K″K0+″◢N＝abs(W-U)：S＝√(Y2+N2):J＝Abs(S-R)：S＞R＝＞J″CAO″：J◢≠＞J″QIAN″：J◢△J＝Abs(NCOSM)：″D＝″：AbsS◢A＞0＝＞W＞U J″hv″：J◢≠＞D＝0＝＞J″h＾″：J◢≠＞S＞0＝＞J″h＾″：J◢≠＞″hv″：J◢△△△≠＞W＞U＝＞D＝0＝＞J″h＾″：J◢≠＞S＞0＝＞J″h＾″J◢≠＞J″hv″:J◢△△≠＞J″hv″:J◢△△△Norm：goto1
In the above method, when N ═ 0, X0(S > 0.Z < 0.X > 0) is shown? Data origin coordinates representing input X0; when K0(QIE, DIAN) is displayed? The pile number of an input starting point (the pressure pipeline mileage (unit meter) at the tangent point) is represented; in the display H (QIE, DIAN)? The input is represented (origin circle center elevation (in meters)). Then display R? The radius R of the excavation construction of the input pressure steel pipe is shown; then, display kz (zongdian)? Inputting the pile number of the straight pipe section end point; then display l (ban jin)? Inputting the turning radius of the upper bent pipe and the lower bent pipe: followed by the display of A (S > 0.Z < 0.X < 0)? The degree of the slope of the input steel pipe slope is shown (the degree is input by 10 degrees, and the degree can not be used for minutes and seconds); display ≧? Inputting 3; show x (qie dian)? Inputting a tangent point pile number; display X? Inputting a field measurement coordinate X; display Y? Inputting a field measurement Y coordinate; display H? Inputting a field measurement elevation H; displaying K0+, which represents how many stake marks just input into the coordinate points are calculated; display cao showing how much the point was overbreaked; similarly, when the QIAN is displayed, the point is indicated to be undermined; when the input is completed XYH, the running program also displays X? Y? H? The coordinates indicating the beginning of the input are outside the control section (meaning that the coordinates of the down-bend section are input, the position of the up-bend or oblique straight section is not possible, and the measured coordinates of the section must be input again); in addition, after the display of CAO (super) or QIAN (under), X is also displayed? Y? H? The point is input by a new point location which is measured again after the previous point is calculated, and the new point overbreak and underexcavation calculation is carried out. And repeating until all the measurement points are measured.
Claims (1)
1. A hydropower station inclined shaft excavation and overbreak inspection method is characterized by comprising the following steps: the inspection method is applied to a calculator of Cassieo 4800 or Cassieo 4850, and takes a construction coordinate system with the mileage as x and the line width as y;
setting:
if N is 0, inputting calculation data; n is not equal to 0, and a lofting program is input;
known data X0When S > 0, represents an upper flat section, when Z < 0, represents a straight line section, and when X > 0, represents a lower flat section; the x coordinate of the measuring station represents a starting point, namely starting mileage, lofting of an upper bending section and a lower bending section is carried out when the starting point is positive, and lofting of a straight pipe section is carried out when the starting point is negative;
k0(QIE, DIAN) represents the starting point stake number, H (QIE, DIAN) represents the starting point centroid elevation;
a (s is more than 0, z is less than 0, x is less than 0) represents the central angle of the upper bent pipe, when the angle A is positive, the lofting of the upper bent pipe is performed, the upper flat section longitudinal gradient value is less than or equal to negative when the downslope is negative, and positive when the upslope is positive; when the angle A is negative, performing lower bent pipe and straight pipe section lofting, wherein the angle value is the longitudinal slope angle of the straight pipe section of the inclined shaft;
x (QIE, DIAN) represents the X coordinate of the construction coordinate system at the tangent point; KZ (ZONG, DIAN) represents the end mileage at which a straight section loft is taken; r represents the pressure pipe radius; l represents the radius of the upper bent pipe section or the lower bent pipe section; x, Y, representing a lofting point construction coordinate system, and lofting design data according to design requirements; h represents lofting point elevation; k0+ represents the loft mileage; wa denotes undermining; wa denotes overbreak;
or represents a value of moving left and right in direction, respectively; lm represents the parallel distance of the movement of D on the central pile number; h ^ or hv respectively represents elevation up-down movement values, wherein h represents elevation data, h ^ represents elevation upwards, hv represents elevation downwards, and oblique length data from a lofting point to the circle center during Lm excavation;
o represents a tangent point of an x (QIE, DIAN) coordinate in the construction coordinate system, and lofting is carried out on an upper bent section and a lower bent section when the tangent point is positive and on a straight pipe section when the tangent point is negative; q represents the pile number of the starting point of the tangent point; z represents the elevation of the starting point of the tangent point; RB represents turning radius data of the excavated construction pipeline; abs represents an absolute value; c represents a positive angle in the program calculator; pol represents a formula for calculating polar coordinates from known coordinates;
step 1: when the condition N is equal to zero, the known data O, Q, Z, RB needs to be input, the radius of the curve needs to be input, and then the white triangle is input, which indicates whether the previous condition is satisfied or not; if the conditions are met, continuously inputting the bevel angle A of the inclined shaft, pushing out to E when the angle A is positive and larger than zero, performing a pipe bending program, and then inputting a white triangle to represent to judge whether the conditions are met;
step 2: if the condition that N is not 0 in the step 1 is not met, the lower bent pipe and the straight pipe section are lofted when N is less than zero, and the data of the starting point tangent point of the straight pipe section or the lower bent section are input; after the input white triangle representation is judged and determined, entering the next step;
and step 3: c is equal to an absolute value A, u is equal to the radius, a limit angle is calculated by using a { } frame aiming at three measured variables, the positive and negative are judged, when the angle is smaller than zero, the azimuth angle plus 360 degrees is a positive value, and the product of the cosine value and the length of the value obtains the pile number of the measuring point;
and 4, step 4: if O is less than zero; deducing the azimuth angle J minus 90 degrees and then minus the inclination angle A, and simultaneously multiplying the distance by sine; u is equal to zero, and the pile number is obtained by adding the distance to the tangent point pile number and multiplying the distance by the cosine azimuth angle; inputting goto2 and a white triangle to show that the position enters the second calculation, and after judging the position by the white triangle, entering the next calculation;
and 5: a is greater than zero, the derived azimuth is equal to S-J; if the A is not larger than zero, the azimuth angle is deduced to be equal to J-C, and then a white triangle is input to indicate that judgment and selection are required to be carried out at the place;
step 6: if M is equal to the azimuth angle J and J is smaller than zero, deducing the azimuth angle plus 360 degrees, calculating W and J after proper judgment, directly obtaining that J is changed into-J when M is smaller than zero, inputting white triangle judgment, deducing that J is equal to-J if M is larger than 180, and then calculating through K-Q +2 pi LJ/360 to obtain the stake number K; meanwhile, when A is larger than zero, M is equal to J minus 180 minus S, if not, M is equal to C minus J, and then white triangle input is displayed for judgment; the number of the K stub is larger than the number B of the starting stub, the goto1 is pushed out to enter one-step calculation, and the white triangle indicates that judgment is needed;
and 7: fix3 indicates that 3 decimal places are reserved in the following display, and K "ko +" indicates that the display is displayed when calculated hereShown as K0Visually representing stake numbers, wherein quotation marks represent contents to be displayed; the black triangle indicates that the stake number k needs to be displayed after the calculation; the white triangles and the black triangles are arranged behind the display screen, and the black triangles are marked when the conditions are met after the judgment.
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| CN110823199A (en) * | 2019-11-15 | 2020-02-21 | 安徽金寨抽水蓄能有限公司 | Vertical shaft overbreak and underexcavation rapid measurement structure and application method thereof |
| CN110966007B (en) * | 2019-12-18 | 2020-12-25 | 中国水利水电第五工程局有限公司 | Curved arc excavation method for downward bending section of vertical shaft |
| CN111337935B (en) * | 2020-03-17 | 2022-06-14 | 中国水利水电第五工程局有限公司 | Underground inclined shaft excavation measuring method |
| CN112052498B (en) * | 2020-09-02 | 2024-02-02 | 国家电网有限公司 | Inclined shaft excavation lofting detection method and device |
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