CN113496081A - Overhead line manpower distance calculation method based on conical spiral model - Google Patents

Overhead line manpower distance calculation method based on conical spiral model Download PDF

Info

Publication number
CN113496081A
CN113496081A CN202110323562.XA CN202110323562A CN113496081A CN 113496081 A CN113496081 A CN 113496081A CN 202110323562 A CN202110323562 A CN 202110323562A CN 113496081 A CN113496081 A CN 113496081A
Authority
CN
China
Prior art keywords
terrain
distance
degrees
mountain
manpower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110323562.XA
Other languages
Chinese (zh)
Other versions
CN113496081B (en
Inventor
秦纪宾
林锐
翁兰溪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PowerChina Fujian Electric Power Engineering Co Ltd
Original Assignee
PowerChina Fujian Electric Power Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PowerChina Fujian Electric Power Engineering Co Ltd filed Critical PowerChina Fujian Electric Power Engineering Co Ltd
Priority to CN202110323562.XA priority Critical patent/CN113496081B/en
Publication of CN113496081A publication Critical patent/CN113496081A/en
Application granted granted Critical
Publication of CN113496081B publication Critical patent/CN113496081B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Evolutionary Computation (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The invention relates to a human transport distance calculation method in overhead line design and construction, in particular to a human transport distance calculation method for an overhead line based on a conical spiral line model. The invention discloses a method for estimating the distance of a tower by using a spiral line mathematical model of an equidistant cone, which is characterized in that a mountain is equivalent to a cone, the modeling is carried out by using the spiral line mathematical model of the equidistant cone, the arc length calculation formula is used for estimating the distance of manpower climbing, and the distance is used as the manual transport distance of a tower. Therefore, the invention realizes the objective calculation of the manual transport distance, greatly reduces the data error, reduces the construction cost difference and improves the construction safety and efficiency.

Description

Overhead line manpower distance calculation method based on conical spiral model
Technical Field
The invention relates to a manual transport distance calculation method in overhead line design and construction, in particular to a method for calculating the manual transport distance of an overhead line based on a conical spiral line model.
Background
In the electric power construction field, overhead line engineering is because the path length, tower position are punctiform and distribute, therefore the material transportation in the construction mostly needs through the manpower transportation, and the manpower transportation involves the rational design calculation of manpower distance, and the manpower distance then involves subsequent construction safety, construction cost and efficiency of construction. Therefore, when construction design and budget estimate are carried out, the average human transport distance of material transportation needs to be counted, especially for terrains such as hills and mountains, however, most of the existing human transport distances are set according to subjective experiences, so that errors of the human transport distances are large, construction management is disordered, construction cost difference is large, construction safety cannot be guaranteed, and construction efficiency is low.
Disclosure of Invention
The invention aims to provide the overhead line manpower distance calculation method based on the conical helix model, which reduces or eliminates data errors, reduces construction cost differences and improves construction safety and construction efficiency according to the defects of the prior art.
The purpose of the invention is realized by the following ways:
the method for calculating the manpower transport distance of the overhead line based on the conical spiral line model is characterized by comprising the following steps of:
1) the macro topography of the construction tower site is divided into four types according to the average grade of the topography where the manpower transportation passes in the overhead line: the average slope is less than 5 degrees and is flat land terrain, the average slope is (5-15 degrees) and is hilly land terrain, the average slope is (15-30 degrees) and is mountain land terrain, the average slope is more than 30 degrees and is mountain and mountain land terrain, and the horizontal distance L of the manpower transport distance to the terrain and the terrain height difference delta h are obtained, wherein delta h is more than 0,
2) calculating a nominal terrain elevation difference angle beta according to the horizontal distance L of the terrain where the manpower distance passes and the terrain elevation difference delta h0：
Figure BDA0002993732880000011
3) Calculating the equivalent slope angle beta of the mountain according to the horizontal distance L of the terrain where the manpower distance passes and the height difference delta h of the terrain:
Figure BDA0002993732880000012
wherein: the unit of beta is rad,
Figure BDA0002993732880000013
4) calculating the equivalent half cone angle x of the mountain cone according to the equivalent slope angle beta of the terrain,
Figure BDA0002993732880000014
wherein: the x is given in units of rad,
5) the parameters of the conical helix model are calculated as follows:
Figure BDA0002993732880000021
the parameters in the above formula are specifically defined as follows:
b-coefficient, value 1.5;
n is the number of the periods of the conical spiral line, and is a positive number;
theta is the cumulative rotation angle of the conical helix, and the unit is rad;
d-the lead of the conical helix, specifically: setting the distance of the moving point moving along the axis direction of the cone within one circle of the movement of the spiral line, wherein the unit is m;
alpha-the pitch dependence of the conical helix,
A. b, Q-intermediate parameters of conic helix model;
6) beta obtained in step 2)0When the angle is less than or equal to 5 degrees, the angle is set to be flat terrain, and the manpower distance L is set at the momentarc1.2L; when beta is0When the angle is more than 5 degrees, calculating a human transport distance coefficient k according to an arc length model of the conical spiral line:
Figure BDA0002993732880000022
in the formula, when k is less than or equal to 1.1, k is 1.2; k is a radical oftFor adjusting coefficients based on terrain, wherein the terrain k is hillyt1.0; mountain land topography kt1.25; mountain and green terrain, kt＝1.5；
7) Calculating the man-power distance LarcThe following were used:
Larc＝k×L。
in conclusion, the invention provides a method for calculating the manpower distance of an overhead line based on a conical spiral line model, which is characterized in that according to the specific situation of manual transportation of construction units in regions where vehicles cannot reach during the transportation of overhead line materials with fluctuant terrain, on the premise of uniformly manually ascending the slope (controlled within 5 degrees and relatively labor-saving), a mountain is equivalent to a cone, an equidistant conical spiral line mathematical model is adopted for modeling, the arc length calculation formula is utilized for estimating the distance of manpower climbing, and the distance is used as the tower position manual distance. Therefore, the invention realizes the objective calculation of the manual transport distance, greatly reduces the data error, reduces the construction cost difference and improves the construction safety and efficiency.
The present invention will be further described with reference to the following examples.
Detailed Description
The best embodiment is as follows:
the method is based on the fact that when the macroscopic topography (flat land, hilly land, mountain land and high mountain and mountain land) of the tower position of the line, the horizontal distance between the tower position and the nearest road and the height difference are known, the manual distance of each tower position of the project is calculated by using a conical spiral line model.
The method for calculating the manpower transport distance of the overhead line based on the conical spiral line model is characterized by comprising the following steps of:
step 1: observing the terrain gradient of the area where the continuous 2-kilometer line is located, determining the macro terrain of the tower position to be calculated, and selecting one of the terrain adjustment coefficients k of flat terrain (within 5 degrees of average gradient), hilly terrain (within 5 degrees of average gradient), mountainous terrain (within 15 degrees to 15 degrees of average gradient), mountainous terrain (within 15 degrees to 30 degrees of average gradient) and mountainous (above 30 degrees of average gradient) to adjust the terraintAs input parameters.
Step 2: according to the horizontal distance L and the height difference delta h (taking the value larger than 0) of the manpower distance, the nominal height difference angle beta of the terrain is calculated according to the formula 10：
Figure BDA0002993732880000031
When beta is0When the angle is not more than 5 degrees, the manpower distance L is considered according to the flat groundarc＝1.2L；
When beta is0>At 5 deg., proceed to the next step. The horizontal distance L of the manual transport distance is the horizontal distance from the manual transport starting point to the tower position terminal point, and the altitude difference delta h is the altitude difference from the manual transport starting point to the tower position terminal point; can be obtained according to the existing GPS digital terrain system.
And step 3: calculating the equivalent slope angle beta of the mountain according to the horizontal distance L of the terrain where the manpower distance passes and the height difference delta h of the terrain:
Figure BDA0002993732880000032
wherein: the unit of beta is rad,
Figure BDA0002993732880000033
and 4, step 4: calculating the equivalent half cone angle x of the mountain cone according to the formula 3:
Figure BDA0002993732880000034
wherein: x is rad;
and 5: the parameters of the conical helix model are calculated as follows:
Figure BDA0002993732880000041
the values of the parameters in the above formula are specifically defined as follows:
b-coefficient, value 1.5;
n is the number of the periods of the conical spiral line, and is a positive number;
theta is the cumulative rotation angle of the conical helix, and the unit is rad;
d-the lead of the conical helix, specifically: setting the distance of the moving point moving along the axis direction of the cone within one circle of the movement of the spiral line, wherein the unit is m;
alpha-the pitch dependence of the conical helix,
A. b, Q-intermediate parameters of conic helix model;
step 6: calculating a human transport distance coefficient k according to an arc length model of the conical spiral line:
Figure BDA0002993732880000042
k abovetFor the adjustment of coefficients based on terrain, hilly terrain, kt1.0; mountain land topography, kt1.25, mountain and green, kt＝1.5。
When the calculated k is less than 1.1, taking k as 1.2;
and 7: calculating the man-power distance LarcThe following were used:
Larc＝k×L
on the basis, the calculation result can be checked according to the average climbing slope angle, and the average climbing slope angle delta is calculated as follows:
Figure BDA0002993732880000043
when the height difference is 25-250 m, the actual substitution data calculation shows that the average hill climbing slope angle delta meets the following requirements: delta is more than 4.2 degrees and less than 5.0 degrees.
In the equidistant conic spiral mathematical model of the invention, the most important is the determination of half cone angle and lead, the equivalent half cone angle x of the mountain cone and the equivalent calculated slope angle beta of the mountain are in a complementary relation, the lead d can be determined by dividing the altitude difference by the periodicity, and the periodicity n is obtained by a large amount of data simulation, wherein the nominal altitude difference angle beta0The unit is degree, namely the included angle between the horizontal plane and the connecting line between the target tower position and the nearest transport vehicle parking point (the starting point of the manpower distance).
The invention is based on the practical application of the invention in hilly terrain to calculate the man-power distance as follows:
Figure BDA0002993732880000051
the equivalent half cone angle x of the mountain cone and the equivalent calculated slope angle beta of the mountain are converted into degrees.
As can be seen from the table, the human-powered distance coefficient with large horizontal distance is large under the condition of the same height difference and different horizontal distances; if the same horizontal distance and different height differences exist, the manpower distance coefficient with large height difference is large; compared with the influence of the horizontal distance, the influence of the height difference is large, which accords with the practical situation and also accords with the physical law that the work done by overcoming the gravity is mainly related to the height difference of the object. The method for calculating the manpower transport distance of the overhead line by the conical spiral line model can calculate the manpower transport distance of each tower position more accurately, the construction budget estimate cost is more refined, and construction management confusion and construction safety risks caused by uncertainty of the budget estimate are avoided.
The parts of the invention not described are the same as the prior art.

Claims (1)

1. The method for calculating the manpower transport distance of the overhead line based on the conical spiral line model is characterized by comprising the following steps of:
1) the macro topography of the construction tower site is divided into four types according to the average grade of the topography where the manpower transportation passes in the overhead line: the average slope is less than 5 degrees and is flat land terrain, the average slope is (5 degrees to 15 degrees) and is hilly land terrain, the average slope is (15 degrees to 30 degrees) and is mountain land terrain, the average slope is more than 30 degrees and is mountain and mountain land terrain, and the horizontal distance L of the manpower transport distance from the terrain and the height difference delta h of the terrain are obtained, wherein delta h is more than 0;
2) calculating a nominal terrain elevation difference angle beta according to the horizontal distance L of the terrain where the manpower distance passes and the terrain elevation difference delta h0：
Figure FDA0002993732870000011
3) Calculating the equivalent slope angle beta of the mountain according to the horizontal distance L of the terrain where the manpower distance passes and the height difference delta h of the terrain:
Figure FDA0002993732870000012
wherein: the unit of beta is rad,
Figure FDA0002993732870000013
4) calculating the equivalent half cone angle x of the mountain cone according to the equivalent slope angle beta of the terrain,
Figure FDA0002993732870000014
wherein: the x is given in units of rad,
5) the parameters of the conical helix model are calculated as follows:
Figure FDA0002993732870000015
the parameters in the above formula are specifically defined as follows:
b-coefficient, value 1.5;
n is the number of the periods of the conical spiral line, and is a positive number;
theta is the cumulative rotation angle of the conical helix, and the unit is rad;
d-the lead of the conical helix, specifically: setting the distance of the moving point moving along the axis direction of the cone within one circle of the movement of the spiral line, wherein the unit is m;
alpha-the pitch dependence of the conical helix,
A. b, Q-intermediate parameters of conic helix model;
6) beta obtained in step 2)0When the angle is less than or equal to 5 degrees, the angle is set to be flat terrain, and the manpower distance L is set at the momentarc1.2L; when beta is0When the angle is more than 5 degrees, calculating a human transport distance coefficient k according to an arc length model of the conical spiral line:
Figure FDA0002993732870000021
the upper typeWhen k is less than or equal to 1.1, taking k as 1.2; k is a radical oftFor adjusting coefficients based on terrain, wherein the terrain k is hillyt1.0; mountain land topography kt1.25; mountain and green terrain, kt＝1.5；
7) Calculating the man-power distance LarcThe following were used:
Larc＝k×L。
CN202110323562.XA 2021-03-26 2021-03-26 Overhead line manpower distance calculation method based on conical spiral model Active CN113496081B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110323562.XA CN113496081B (en) 2021-03-26 2021-03-26 Overhead line manpower distance calculation method based on conical spiral model

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110323562.XA CN113496081B (en) 2021-03-26 2021-03-26 Overhead line manpower distance calculation method based on conical spiral model

Publications (2)

Publication Number Publication Date
CN113496081A true CN113496081A (en) 2021-10-12
CN113496081B CN113496081B (en) 2022-12-09

Family

ID=77997473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110323562.XA Active CN113496081B (en) 2021-03-26 2021-03-26 Overhead line manpower distance calculation method based on conical spiral model

Country Status (1)

Country Link
CN (1) CN113496081B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102436548A (en) * 2011-10-26 2012-05-02 中国电力科学研究院 Line wind load computing method for transmission tower in micro-morphogenetic region
CN107515408A (en) * 2017-08-29 2017-12-26 国网福建省电力有限公司 Power circuitry engineering path and the preparation method of landform

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102436548A (en) * 2011-10-26 2012-05-02 中国电力科学研究院 Line wind load computing method for transmission tower in micro-morphogenetic region
CN107515408A (en) * 2017-08-29 2017-12-26 国网福建省电力有限公司 Power circuitry engineering path and the preparation method of landform

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张鲲: "利用高清影像地图精确计算输电线路工程人力运距", 《电力勘测设计》 *

Also Published As

Publication number Publication date
CN113496081B (en) 2022-12-09

Similar Documents

Publication Publication Date Title
CN113496081B (en) Overhead line manpower distance calculation method based on conical spiral model
CN109637160A (en) A kind of single-point control method under the conditions of dynamic traffic
CN112116785B (en) Tailing pond disaster early warning method and device based on strong rainfall weather forecast
CN103196420B (en) Method and system for measuring length of dry beach of tailing pond
CN104777846B (en) Smooth transient method for unmanned aerial vehicle flight path flight altitude control
DE102019107167A1 (en) Reservation and optimization of an e-bike with e-assistant
CN104989592B (en) Wind generating set engine room wind direction bearing calibration
CN106872962B (en) Ground detector arrangement method for calibration of satellite-borne laser altimeter
CN109165427B (en) Optimization calculation method for operating high-speed rail longitudinal section linear adjustment scheme
CN110219274B (en) Automatic control method and system of sprinkler and sprinkler
CN109299830B (en) Hydrological forecasting system and method based on soil moisture monitoring
CN112666978B (en) Unmanned aerial vehicle self-adaptive landing navigation method and device
CN113741509B (en) Hypersonic gliding aircraft hold-down section energy management method
CN104201631A (en) GIS (geographic information system) based three-dimensional jumper sag determination method
CN105912002A (en) Control method for changing flight height of airplane
CN110990951A (en) Helicopter appearance design method
WO2023056781A1 (en) Train long and steep downhill control method and apparatus, and electronic device
CN113946982B (en) Method for obtaining topography profile of dangerous rock mass
CN112556666A (en) Linear lofting method for complex terrain situation
CN109190931B (en) Three-dimensional space coordinate-based hard jumper iterative calculation method
CN110130903B (en) Steady-state target offset system and method for deviation correction in shield tunnel construction
CN110645954B (en) Method for calculating visual axis angle of four-frame two-axis stable platform
CN107119159A (en) A kind of optimization method for the blast furnace material distribution process burden distribution matrix that there is integer programming problem
CN114265433B (en) Transverse guidance method and system for meeting large-journey maneuver
CN104077465B (en) Method for determining wind load of overhead transmission line at hill or cliff micro terrain

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant