JP2002310653A - Underground installation drawing preparation device, its method therefor, and storage medium for storing underground installation drawing preparation program - Google Patents

Underground installation drawing preparation device, its method therefor, and storage medium for storing underground installation drawing preparation program

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Publication number
JP2002310653A
JP2002310653A JP2001113544A JP2001113544A JP2002310653A JP 2002310653 A JP2002310653 A JP 2002310653A JP 2001113544 A JP2001113544 A JP 2001113544A JP 2001113544 A JP2001113544 A JP 2001113544A JP 2002310653 A JP2002310653 A JP 2002310653A
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JP
Japan
Prior art keywords
ground height
ground
underground
survey
pipeline
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.)
Withdrawn
Application number
JP2001113544A
Other languages
Japanese (ja)
Inventor
Osamu Inoue
Tetsuya Nanba
修 井上
哲也 難波
Original Assignee
Kansai Electric Power Co Inc:The
関西電力株式会社
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 Kansai Electric Power Co Inc:The, 関西電力株式会社 filed Critical Kansai Electric Power Co Inc:The
Priority to JP2001113544A priority Critical patent/JP2002310653A/en
Publication of JP2002310653A publication Critical patent/JP2002310653A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To calculate ground levels at positions other than prescribed ground level survey points, based on the ground levels previously surveyed in first survey at ground level survey points. SOLUTION: When plane surveying in conducted to acquire current geological formation of ground in a site where an underground installation is buried, ground levels surveyed at limited ground level survey point among all the survey points are stored in a memory 15. A control part 5 finds ground levels at prescribed positions by using the distances from the prescribed position to prescribed ground level survey points and the ground levels at the prescribed survey points, and prepares drawings of the underground installation, by using the found ground levels.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for preparing drawings such as sectional views of equipment buried underground.

[0002]

2. Description of the Related Art Telephone lines and some power cables are housed in conduits buried underground along roads and the like. In addition, water supply pipelines, sewage pipelines, gas pipelines, and the like are often buried underground. Conventionally, when burying such pipes and manholes, a series of business processes involved in the design of pipes and manholes requires a survey of the area to be constructed and a survey of the area to be constructed. Investigation of existing buried objects, preparation of actual measurement plan based on the results of the survey and survey of buried objects, preparation of a floor plan for designing laying routes on pipelines and manholes based on the measured plan, laying of pipelines Processing such as surveying the ground height at the route and at the cross-section drawing point, creating vertical and cross-sectional views based on the ground height survey results, and designing the burial depth of pipelines and manholes based on the vertical and cross-sectional views. Have been done.

[0003] First, an actual measurement plan of the current topography is created by performing a plane survey, and a laying route of a pipeline is designed on the actual measurement plan. After these steps are completed, a longitudinal section, which is a cross-sectional view along the laying route of the pipeline, and a cross-sectional view, which is a cross-sectional view along a traversing line intersecting the laying route of the pipeline, are created. For this purpose, the ground height at the required points is surveyed.

[0004]

Conventionally, on-site surveys have been performed twice before the completion of the design as described above, so that it takes a long time for the survey, and the construction period until the completion of the design is prolonged. Was increasing. In addition, when a design change occurs in the laying route of the pipeline, it is necessary to measure the ground height again, which requires more time.

[0005] The present invention solves the above-mentioned problems.
In the second survey, a ground height is measured for a predetermined ground height surveying point, and an underground equipment drawing creating device capable of calculating the ground height at a position other than the ground height surveying point based on these ground heights, An object of the present invention is to provide a recording medium in which an underground equipment drawing creation method and an underground equipment drawing creation program are recorded.

[0006]

According to a first aspect of the present invention, there is provided an underground facility burial site which includes a part of the ground surveying points among all the surveying points when performing a plane survey for obtaining the current topographical landform on the ground. Storage means for storing the measured ground height, and ground height calculating means for determining the ground height at a predetermined position using the distance between the predetermined position and the predetermined ground height surveying point and the ground height at the predetermined ground height measuring point It is characterized by having.

[0007] According to this configuration, at the time of performing a plane survey for obtaining the current topography on the ground at the underground facility burial site, the ground height is measured for some of the ground height survey points out of all the survey points, and the predetermined height is measured. The ground height at the position is obtained using the distance between the predetermined position and the predetermined ground height surveying point and the ground height at the predetermined ground height measuring point, so that the ground height at a position other than the ground height measuring point is obtained. Will be done. Therefore, by using the ground height, for example, a sectional view as an underground facility drawing can be created even at a position other than the ground height surveying point.

According to a second aspect of the present invention, in the underground equipment drawing creating apparatus according to the first aspect, the storage means includes a plurality of ground height polygons each having a plurality of the ground height survey points as vertices. It is characterized in that the board height survey points are stored in each state in a state where the board height survey points are associated with each other.

[0009] According to this configuration, the storage means stores the ground heights at each location in a state where the ground height survey points are associated with each other, as a plurality of ground height polygons formed with the plurality of ground height measurement points as vertices. Have been. Here, in a site where the ground height changes rapidly, that is, the height of the ground changes frequently at short distances, the area of the ground height polygon is set small, and the ground height changes slowly, that is, on flat roads and slopes. In a site where a constant slope is continued, the size of the ground high polygon may be set according to the state of the surveying site, for example, by setting a large area of the ground high polygon.

[0010] At this time, each of the above-mentioned ground height polygons is configured such that a substantially plane is formed by the ground height of each ground height surveying point which is the vertex thereof. ), The ground height at an arbitrary position in the ground height polygon can be easily and relatively accurately obtained using the ground height on the side of the ground height polygon.

According to a fourth aspect of the present invention, in the underground equipment drawing creating apparatus according to the third aspect, the ground height calculating means determines a ground height at an arbitrary position on a side of the ground height polygon at a vertex of both ends of the side. It is characterized in that it is determined based on the ground height.

According to this configuration, since the ground height polygon is configured to be substantially flat, the ground height at an arbitrary position on the side of the ground height polygon is determined based on the ground height at the apexes at both ends of the side. For example, since it is obtained by proportionally distributing the distance from the arbitrary position to the vertices at both ends, the ground height at an arbitrary position on the side can be easily and relatively accurately obtained.

According to a fifth aspect of the present invention, there is provided the underground equipment drawing creating apparatus according to the fourth aspect, wherein a drawing creating means for creating an underground equipment drawing using the ground height obtained by the ground height calculating means, Standard data storage means for storing a specified construction standard, wherein the storage means stores a laying route of a pipeline designed on a plan view as underground equipment, and the ground height calculation means, The ground height at the intersection of the side of the ground height polygon projected on the plan view and the laying route of the pipeline, the ground height at both end vertices of the side according to the distance between the intersection and the both end vertices A linearly interpolated value, wherein the drawing creating means creates a sectional view along the laying route in which the designed pipeline as the underground equipment drawing is described at a position satisfying the construction standard. Is characterized by To have.

According to this configuration, the pre-specified construction standard and the installation route of the pipeline designed on the plan view as the underground facility are stored. Then, the ground height at the intersection of the side of the ground height polygon projected on the plan view and the laying route of the pipeline is determined by determining the ground height at both vertices of the side in accordance with each distance between the intersection and the both vertices. As a value obtained by linear interpolation. Therefore, the ground height at a point on the pipeline laying route is obtained at each intersection with the side of the ground height polygon, whereby the pipeline designed as the underground equipment drawing satisfies the construction standard. The cross-sectional view described at the position is easy along the installation route,
And it is created relatively accurately.

According to a sixth aspect of the present invention, in the underground equipment drawing creating apparatus according to the fifth aspect, there is provided an existing data storage means for storing data relating to an existing underground buried object, and the drawing creating means is provided with the sectional view. When preparing the above, the designed pipeline is described in a position avoiding the existing underground object so as to satisfy the construction standard.

According to this configuration, data on the existing underground object is stored. When creating a sectional view, a pipe designed at a position avoiding the existing underground buried object so as to satisfy the construction standard is described, so that the workability of creating the sectional view is good. Will be realized.

According to a seventh aspect of the present invention, in the underground equipment drawing creating apparatus according to the fifth or sixth aspect, the storage means stores a crossing instruction line set to intersect the installation route on the plan view. The ground height calculating means calculates a ground height at an intersection between the side of the ground height polygon projected on the plan view and the crossing instruction line, and obtains a ground height at both ends apex of the side with the intersection. The values are linearly interpolated in accordance with the distances to both ends of the vertices, and the drawing creating means creates a cross-sectional view describing the designed pipeline as the underground equipment drawing along the crossing instruction line. It is characterized by that.

According to this configuration, the storage means stores the traversing instruction line that is set so as to intersect the installation route of the pipeline in the plan view. The ground height at the intersection between the side of the ground height polygon projected on the plan view and the above-mentioned crossing instruction line is obtained by linearly changing the ground height at both vertices of the side in accordance with each distance between the intersection and the both vertices. It is obtained as an interpolated value. Therefore, the ground height at a point on the crossing instruction line is determined at each intersection with the side of the ground height polygon, whereby the sectional view describing the designed pipeline as an underground facility drawing is Along the crossing line,
It can be created easily and relatively accurately.

According to an eighth aspect of the present invention, the ground height is measured for a part of the ground height survey points among all the survey points when performing a plane survey for obtaining the current topographical landform at the underground facility burial site, It is characterized in that the ground height at the predetermined position is obtained by using the distance between the predetermined position and the predetermined ground height surveying point and the ground height at the predetermined ground height measuring point.

According to this configuration, when performing a level survey for obtaining the current topography on the ground at the underground facility burial site, the ground height is measured for some of the ground height survey points out of all the survey points, and The ground height at the position is obtained using the distance between the predetermined position and the predetermined ground height surveying point and the ground height at the predetermined ground height measuring point, so that the ground height at a position other than the ground height measuring point is obtained. Will be done. Therefore, by using the ground height, for example, a sectional view as an underground facility drawing can be created even at a position other than the ground height surveying point.

According to a ninth aspect of the present invention, there is provided a recording medium in which an underground equipment drawing creating program is recorded and which can be read by a computer. A storage step of storing the ground height measured for some of the ground height survey points of all the survey points when performing surveying in the storage means; and storing the ground height at a predetermined position in the predetermined position and the predetermined ground height survey point. And a ground height calculating step for calculating the ground height using the ground height at the predetermined ground height survey point.

When this recording medium is read and executed by a computer, when performing a planar survey for obtaining the current topography on the ground at the site where the underground facility is buried, surveying is performed for some of the ground elevation survey points among all the survey points. The obtained ground height is stored in the storage means, and the ground height at the predetermined position is obtained using the distance between the predetermined position and the predetermined ground height surveying point and the ground height at the predetermined ground height measuring point, The ground height at a position other than the ground height survey point is determined. Therefore, by using the ground height, for example, a sectional view as an underground facility drawing can be created even at a position other than the ground height surveying point.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an electrical configuration of an embodiment of an underground equipment drawing creating apparatus according to the present invention.

The underground equipment drawing creating apparatus includes a storage unit 1,
The personal computer (PC) system includes an operation unit 2, a display unit 3, a printing device 4, a control unit 5, and the like. This underground equipment drawing creation apparatus reads the underground equipment drawing creation program recorded on the recording medium 11 into a P
By reading and executing with C, a longitudinal section or a cross section of the underground facility is created.

In this embodiment, as an underground facility, for example, a pipeline for burying a power cable will be described. Note that the longitudinal sectional view is a cross-sectional view along the pipeline, and the cross-sectional view is a cross-sectional view along a predetermined crossing instruction line intersecting the pipeline.

The storage unit 1 includes a reading device that drives the recording medium 11 and reads information recorded on the recording medium 11. As the recording medium 11, for example, a CD-ROM
And a portable recording medium such as a DVD-ROM.

The operation unit 2 includes a keyboard 12 having character keys, numeric keys, and the like, and a mouse 13 having, for example, left and right buttons. The operation unit 2 performs a predetermined initial operation after turning on the power to the PC, and starts the underground equipment drawing creation program. The mouse 13 moves the mouse cursor to a desired icon or a display drawing on the screen of the display unit 3 and clicks a button, thereby instructing position designation on the drawing, selection of a work menu, execution, and the like. It is.

The display unit 3 is composed of, for example, a CRT display, an LCD, or the like. The display unit 3 is operated according to an instruction from the control unit 5 based on an operation input to the operation unit 2.
The drawings and work menus stored in the recording medium 11 are displayed. The printing device 4 is configured by a printer, a plotter, or the like, and prints out the created plan view, cross-sectional view, and the like on paper as necessary.

The control unit 5 is composed of a CPU and other electronic circuits, and controls the entire PC system. The control unit 5 executes a control program stored in the recording medium 11 according to need, such as a hard disk 14 or a RAM. And a desired drawing is created in accordance with an operation input to the operation unit 2 based on the control program.

The control unit 5 has a function of a graphical user interface (GUI) for identifying information contained in the position specified by the position of the mouse cursor when the mouse 13 is clicked, and
The mouse 13 can be used to specify the position on the drawing displayed on the display unit 3 and select a work menu.

The function of the control unit 5 which is executed by reading the underground equipment drawing creation program recorded on the recording medium 11 will be described later with reference to a flowchart.

Next, an overall schematic procedure for burying the underground facility will be described with reference to FIGS. 3 to 6 in accordance with the flowchart of FIG.

In FIG. 2, first, a survey of a construction target area is instructed (# 100), and a survey is performed using a light wave surveying device generally called a total station (# 1).
05). The total station is a device capable of distance measurement (ranging) and angle measurement (angle measurement), and is capable of measuring relative ground height in addition to planar position coordinate data.

Here, the survey points (measurement points) for which the ground height needs to be measured will be described with reference to FIG. FIG. 3 is a topographical map showing the vicinity of an intersection as an example of a construction target area where surveying is performed. Measurement points requiring ground height data are indicated by ● marks, and measurement points not requiring ground height data are indicated by × marks.

In FIG. 3, roadways 21, 22, 23, 24 extend from the center intersection 20 in the upper, lower, left, and right directions, respectively. The private land 2 is located at the upper left, upper right, lower left, and lower right of the intersection 20.
5, 26, 27, 28 exist.

At the upper left of the intersection 20, a boundary 30 between the sidewalk 29 and the road requires ground height data, and a public-private boundary, that is, a boundary 31 between the private land 25 and the sidewalk 29 requires ground height data. The line indicating the house shape of the private land 25 is unnecessary.

At the upper right of the intersection 20, a boundary 33 between the sidewalk 32 and the road requires ground height data. The line 35 needs the ground height data, while the line 36 indicating the fence or the wire mesh in the private land 26 is unnecessary.

At the lower left of the intersection 20, the gutter 37 and the boundary 38 between the roadway require ground height data, and the public-private boundary, ie, the boundary 39 between the gutter 37 and the private land 27, requires ground height data. The line indicating the house shape of the private land 27 is unnecessary.

At the lower right of the intersection 20, the public-private boundary, that is, the boundary line 40 between the private land 28 and the road, requires the ground height data, while the line indicating the house shape of the private land 28 is not required.

The traffic sign 41 drawn on the intersection 20 or the roadway 21 or the telephone pole 4 provided on the roadway 23
2. The lid 43 of the human hole, the net-shaped gold lid 44, and the gold lid 45 provided on the roadway 24 are not required. On the other hand, the boundary line 4 between the median strip 46 provided on the roadway 24 and the roadway 24
No. 7 requires ground height data.

Returning to FIG. 2, next, topographic map data is created based on the survey data, and a ground high polygon is created by a procedure described later and stored in the memory 15 (# 110).

Next, data on an existing underground object managed by another company is registered (# 115). In the present embodiment, for example, a pipeline for telephone lines, a pipeline for water supply, a pipeline for sewage,
Data on the gas pipeline is registered.

Next, a pipeline laying route is designed based on the original survey data, and a plan view is created (# 120).
FIG. 4 shows an example of a display screen of the display unit 3 on which a plan view is displayed.

In FIG. 4, a power cable conduit 51 indicating the designed conduit laying route extends left and right along the road, and human holes 52a and 52a are provided at both left and right ends and substantially at the center of the conduit 51, respectively. 52b and 52c are provided.
Further, as existing underground objects managed by other companies, a sewage pipe 53, a water supply pipe 54, and a gas pipe 55 are displayed.

Returning to FIG. 2, a longitudinal section along the pipeline 51 is created based on the created plan view, and a cross section along the designated crossing instruction line is created (# 12).
5). The procedure for creating these sectional views will be described later.

FIG. 5 is a view showing an example of a display screen of the display section 3 on which a plan view 61 and a vertical section 62 are displayed. In the vertical section 62, a conduit 51 from a human hole 52a to a human hole 52c is shown.
Is displayed, and the earth covering of the pipe line 51 with respect to the ground surface 56 is designed so as to be not less than a predetermined dimension (for example, 1.2 m).

FIG. 6 is a view showing an example of a display screen of the display unit 3 on which the plan view 61 and the cross section 63 are displayed.
No. 1 has No. 4-No. 4 ', a crossing instruction line 64 is shown. In the cross section 63, the power cable conduit 5 provided at a predetermined burial depth with respect to the ground surface 56 is shown.
1. Water supply pipeline 54, sewage pipeline 53, gas pipeline 55
Is displayed.

Returning to FIG. 2, the burial work is then referred to a contractor (# 130) and is performed (# 135). If a design change is required during construction (YE at # 140)
S) Based on the changed design, a new plan view is created, and a longitudinal view and a cross-sectional view are created.

On the other hand, if there is no design change (N in # 140)
O), the construction is completed (# 145), inspection and acceptance are performed based on the completion data (# 150), and data on underground facilities is updated according to the completion data (# 15).
5).

Next, a procedure for creating a ground high polygon in the underground equipment drawing creating program will be described with reference to FIGS. FIG. 7 is a flowchart showing the procedure for creating the ground height polygon, and FIG. 8 is a diagram showing an example of the generated ground height polygon.

First, by performing surveying using a lightwave surveying device, two-dimensional plane coordinate data is measured at all measuring points, and relative ground height is measured at predetermined measuring points. Each time, the relative ground height data is automatically acquired in association with the plane coordinate data of the measurement point (# 200).

Next, the operator creates polygon data by connecting measurement points that form a substantially flat surface while viewing the ground height data at each measurement point (# 205). In this specification, the polygon data created in this manner is referred to as “ground high polygon”.

Next, the relative ground height data is converted into absolute ground height data (# 210). The ground height of each measurement point measured at the time of the survey is a relative height from a reference point of the survey (an origin appropriately set at the time of the survey). Therefore, when the operator gives the absolute ground height of the survey reference point, the relative ground height data is automatically converted to the absolute ground height data based on the ground height data at the level origin obtained in the survey. You.

Then, when the operator registers the created polygon data as the data of the ground high polygon layer, the ground high polygon is stored in the memory 15 (# 215).
In this way, a ground height polygon is generated.

The ground height polygon group 64 in FIG. 8 is generated by surveying a road extending left and right in the plan view of FIG. In FIG. 8, for convenience of explanation, the ground high polygon group 64 is displayed three-dimensionally shifted upward from the road.

Next, referring to FIGS. 9 to 23, # 1 of FIG.
The creation of a longitudinal section and a cross section performed in step 25 will be described. FIG. 9 is a flowchart of the procedure for creating a longitudinal section.

In FIG. 9, first, a setting instruction is made in advance by an operation performed by the operator, for example, an operation of the mouse 13 for displaying a work menu by an icon or an operation of a numeric key by the keyboard 12. That is, the drawing scale (aspect ratio) of the vertical section is set (# 3).
00), whether or not to automatically avoid the existing buried object is set by the program (# 305), and the pipeline for creating the longitudinal section is determined by designating the equipment in the order of drawing (# 305).
310).

Next, the ground height in the pipeline for forming the longitudinal section is calculated according to the procedure described below (# 31).
5).

Next, on the pipeline designed among the existing buried objects registered at # 115 in FIG. 2 (for example, a pipeline for water supply, a pipeline for sewage, a pipeline for telephone lines, a pipeline for gas, etc.). Extract the buried objects existing at
m) when the predetermined separation is not ensured,
If automatic avoidance is set in # 305, automatic avoidance is performed (# 320).

This automatic avoidance is performed in accordance with the registered data and construction standards, as existing underground objects such as pipelines and manholes managed by other companies are registered at # 115 in FIG. The construction standards prescribe lower limits such as the earth covering of the pipeline (the distance from the ground surface to the top of the pipeline) and the spacing between buried objects. Compare the earth covering of the attribute data of the pipeline for which the drawing is to be created and the earth covering of the existing underground buried object, make an avoidance judgment based on the construction standard, and preferably according to the size of the existing underground buried object Should be avoided on the ground side, and if the construction standard is not met on the ground side, it should be avoided underground. In addition,
Existing underground objects may include, in addition to equipment managed by other companies, existing pipelines managed by the company.

Next, predetermined dimensions such as the actual length and average burial depth of the pipeline section are calculated, and pipeline attribute data reflecting the calculation result is created (# 325).

Next, a temporary drawing of a longitudinal section is performed, and in a state where facilities such as a human hole, a pipeline, and a rise (a place where the pipeline is raised to a telephone pole) are drawn, as an annotation of an existing buried object, The type, diameter, and number of holes of the buried pipe are created (# 330). This annotation is generally called
It is called.

Then, when the display position of the longitudinal view on the screen is designated by the operator clicking the mouse 13 or the like (# 335), the longitudinal view is displayed at the designated position and the subroutine ends.

FIG. 10 is a flowchart of the procedure for creating a cross-sectional view. In FIG. 10, as in the case of the vertical section, first, an advance setting instruction is performed by an operation performed by an operator, for example, an operation of the mouse 13 for displaying a work menu by an icon or an operation of a numeric key by the keyboard 12. .

That is, a traversing instruction line indicating the position where the traversing view is created is set by specifying two points (# 350).
For example, two points are designated as “No. 4” and “No. 4 ′” shown in FIG. Next, an interval for writing the annotation sentence in the cross section is set (# 355).

Next, the ground height on the traversing instruction line is calculated according to a procedure described below (# 360).

Next, the pipeline for drawing creation and the existing buried object (for example, a pipeline for water supply, a pipeline for sewage, a pipeline for telephone lines, a pipeline for gas, etc.) which intersects the crossing instruction line are extracted ( # 3
65), the burying depth and cross-sectional shape of the buried object are determined (# 370). Among the existing underground buried objects, those managed by other companies were shown by the surveying status map based on the survey results such as the topography and the position of the manhole cover, and the companies that manage those buried objects. Registration based on drawings (# 1 in FIG. 2)
15) The data such as the type, diameter, and number of holes of the buried pipe are taken in and discriminated. In addition, with respect to the buried object managed by the company, the data of the structural diagram stored in association with the buried object is fetched and determined.

Next, a temporary drawing of the cross section is performed,
An annotation of an existing buried object is created in a state where the pipeline and the like are drawn (# 375). This commentary sentence is generally referred to as “leaning up” and describes the distance (distance) between each buried object, the distance from the public-private boundary of the buried pipeline, and the like.

Next, when the display position of the cross section on the screen is designated by the operator (# 380), the cross section is displayed at the designated position and the subroutine ends.

Regarding the drawings of pipelines and facilities (such as manholes) drawn in the longitudinal and cross-sectional views, those of existing underground objects managed by other companies are managed by the company based on the survey results. The structural drawings are stored in the recording medium 11 and the memory 15 in association with each other on the basis of the stored structural drawings. It is configured so that drawing can be performed.

FIG. 11 shows # 315 of FIG. 9 and # 3 of FIG.
It is a flowchart of a ground height calculation processing subroutine of No. 60.

First, the ground height at the intersection with the ground height polygon is calculated (# 400), the ground height at the end point is calculated (# 405), and then the ground height at different points is calculated (# 410). Then, the ground high polygon overlapping process is performed (# 415), and this subroutine ends. The ground height calculation subroutine of the intersection and the end point will be described later. The calculation of the ground height of the different point is performed in the same procedure as the calculation of the ground height of the end point. The subroutine for overlapping the ground height polygons will be described later.

FIG. 12A is a diagram for explaining a ground height calculation position in a longitudinal section, and FIG. 12B is a diagram for explaining a ground height calculation position in a cross-sectional view. In FIGS. 12A and 12B, as an example, a conduit 82 is designed between the human holes 80 and 81.

In the longitudinal section, as shown in FIG. 12 (a), the intersection P1 with the ground high polygon is a point at which the pipeline 82 and the sides of the ground high polygons 90, 91, 92, 93 intersect, respectively. , The end point P2 is the start and end point of the longitudinal section, that is, both end points of the pipeline 82, and the different point P3 is the point at which the type of the pipeline to be buried changes.

In the cross-sectional view, as shown in FIG. 12 (b), the intersection P1 with the ground high polygon is the point where the crossing instruction line 83 and the side of the ground high polygon 92 intersect.
Reference numeral 2 denotes a starting point and an ending point of the cross section, that is, two points designated by the designer (both ends of the traversing instruction line 83).

The pipeline 82 is designed on a plan view, the crossing instruction line 83 is set and instructed on the plan view, and the intersection with the ground high polygons 90 to 93 is on the plan view, that is, the two-dimensional coordinate system. Is required.

FIG. 13 is a flowchart of a subroutine for calculating the ground height at the intersection of # 400 in FIG. 11, and FIGS. 14 and 15 are explanatory diagrams for explaining the calculation of the ground height at the intersection.

Referring to FIG. 13, first, an equation representing a cross-section drawing line is calculated (# 500). This cross-section drawing line is a pipe line to be drawn in a longitudinal section, and a crossing instruction line in a cross section.
It is expressed by the following equation.

Next, a straight line equation representing each side is calculated from the vertex coordinates of the ground height polygon (# 505).

Then, it is searched whether or not there is an intersection between the expression of # 500 and each of the linear expressions of # 505.
The intersection coordinates are determined (# 510).

For example, in FIG.
Is y = a 1 x−c 1 and the expression of the side N2 of the ground high polygon is y = a 2 x−c 2 , the coordinates (x P1 , y P1 ) of the intersection P1
X P1 = (c 1 -c 2 ) / (a 1 -a 2 ) y P1 = (a 1 · c 2 -a 2 · c 1 ) / (a 2 -a 1 ) .

Returning to FIG. 13, the vertices at both ends of the side where the intersection exists are extracted (# 515), and then the ground height at both ends is linearly interpolated based on the distance from the intersection to both ends. The ground height is calculated (# 52
0).

For example, in the ground height polygon 100 of FIG. 15, the ground heights of the vertices Q1 and Q2 at both ends of the side where the intersection P1 exists are h 1 and h 2 , and the distance from the intersection P1 to each vertex Q1 and Q2 is L 1. , when L 2, ground elevation h P1 of intersection P1 is, h P1 = and thus obtained by (h 1 · L 2 + h 2 · L 1) / (L 1 + L 2) ... (1).

FIG. 16 is a flowchart of a subroutine for calculating the ground height at the end point of # 405 in FIG. 11, FIG. 17 is a flowchart showing a specific example of the subroutine of search processing in # 600 of FIG. 16, and FIG. End point P2 and the ground height polygon 1 to be determined for inside / outside
FIGS. 19 and 2 illustrate a specific example of the positional relationship with 00.
0 is a diagram for explaining the calculation of the ground height at the end point.

In order to determine the ground height of an end point, it is necessary to determine whether or not the end point is included in the ground height polygon. Therefore, as shown in FIG. 16, in this routine, first, a ground high polygon including the end point is searched (# 600). This inside / outside determination is made based on the cross product of the position (coordinates) of the end point and the line segment (linear expression) representing the side of the ground height polygon.

In # 700 of FIG. 17, first, an orthogonal coordinate system X, with the origin at the end point P2 for which the inside / outside judgment is to be made,
Y is set (see, for example, FIG. 18 (a)). Then, a line segment representing each side of the ground height polygon to be subjected to the inside / outside determination is arranged on the set orthogonal coordinate system (# 705), and each side is determined. Is determined with respect to the Y axis (# 710). Here, the side that does not intersect with the Y axis is not considered hereafter.

Then, the intersection coordinate is Y> 0, that is, the number of sides that intersect at the positive portion of the Y axis is obtained (# 71).
5) If the number is even, it is determined that the end point is outside the ground high polygon, and if the number is odd, it is determined that the end point is included in the ground high polygon (# 72).
0).

For example, in FIG. 18, an orthogonal coordinate system X, Y having the origin at the end point P2 for which the inside / outside judgment is to be performed is set, and the ground high polygon 100 to be subjected to the inside / outside judgment is set.
The number of intersections between each side of and the positive portion of the Y-axis is determined.

In (a), the number of sides that intersect with the positive portion of the Y axis is 0, which is an even number, and is determined to be outside the polygon. In (b), one side intersecting the positive portion of the Y axis is an odd number, and it is determined that the side is inside the polygon. Also,
In (c), the number of sides that intersect the positive portion of the Y-axis is two, which is an even number, and is determined to be outside the polygon. In (d), Y
The number of sides that intersect the positive portion of the axis is three and odd, and it is determined that the inside of the polygon exists.

As shown in FIG. 18E, when one side of the ground high polygon 100 passes through the origin of the rectangular coordinate system X, Y, the determination result is set to “on the line”, and as an exceptional process, Similarly, the ground height may be obtained.

Returning to FIG. 16, as a result of the search in # 600, it is determined whether or not there is a ground high polygon that includes the end point (# 605), and if there is (YES in # 605), # 61
Go to 0.

In step # 610, as shown in FIG.
A point P (the above intersection, end point, or dissimilar point) next to the end point P2 on the plan view is extracted, and the extracted point P and the end point P are extracted.
2 is obtained.

Next, at # 615, as shown in FIG. 19B, two intersections S1 and S2 of the straight line R1 and the ground high polygon 101 including the end point P2 are obtained.

Next, in # 620, as shown in FIG. 19 (c), the ground height of the intersection S1 is
The ground height at the intersection S2 is calculated based on the ground height at S12, and the ground height at both ends apex S21 and S22 of the side is calculated. The calculation of the ground height is performed by linear interpolation as in the above equation (1).

Next, at # 625, the ground height at the end point P2 is calculated based on the ground height at the intersections S1 and S2. The calculation of the ground height is performed by linear interpolation as in the above equation (1). That is, for example, as shown in FIG.
1, S2, the ground height is h 1 , h 2 , and the intersection S1,
Assuming that the distances to S2 are L 1 and L 2 , the ground height h P2 at the end point P2 is obtained by h P2 = (h 1 · L 2 + h 2 · L 1 ) / (L 1 + L 2 ). .

On the other hand, in # 605, if there is no ground height polygon including the end point (NO in # 605), # 63
0, and as shown in FIG.
2, a point P (the above-mentioned intersection, end point, or dissimilar point) is extracted, and a straight line R2 passing through the extracted point P and the end point P2 is extracted.
Is required.

Next, at # 635, one intersection between the straight line R2 and the ground high polygon is determined. At the next # 640, it is determined whether or not the intersection has been determined at # 635, and if the intersection has been determined. (YES in # 640), FIG.
As shown in (b), the ground height at the intersection S3 between the straight line R2 and the ground height polygon 102 is determined by the vertices S31 and S32 at both ends of the side.
The ground height at the intersection S3 is set as the ground height at the end point P2 (# 645), and this subroutine ends.

On the other hand, if the intersection between the straight line R2 and the ground height polygon is not found in # 635 (# 640)
NO), the next point is regarded as an end point (# 650),
Returning to 630, a similar process is performed.

For example, in FIG. 20 (c), when the same processing is performed by regarding the point P20 following the end point P2 as the end point, the same processing is performed by regarding the next point P21 as the end point. A straight line R20 passing through a point P21 regarded as an end point
The ground height at the intersection S3 between the edge and the side of the ground height polygon 102 is the ground height at the end point P2.

FIG. 21 is a flowchart of the subroutine for overlapping the ground high polygons at # 415 in FIG. 11, and FIG.
FIG. 23 is a diagram for explaining the overlapping process of the ground high polygons, and FIG. 23 is a diagram for explaining the creation of a sectional view when the ground high polygons do not overlap.

In step # 750 of FIG. 21, first, both ends of the cross-section line (a pipe in the case of a vertical cross-section, and a cross-sectional instructing line in the case of a cross-section), and the intersection of the cross-section line with the side of the ground high polygon are ground high polygons. Required for each. For example, as shown in the plan view of FIG. 22 (a) and the cross-sectional view of FIG. 22 (b), a ground height polygon 110B having a higher ground height overlaps the ground height polygon 110A, and these ground height polygons 110A, 110
0B, the cross-section line 111
.., B between the cross section line 111 and the ground high polygon 110B are obtained, and the end points C, C outside the ground high polygon are obtained.
Is required.

Note that the coordinates of these points are indicated by # 4 in FIG.
00 and # 405. For example, FIG.
As shown in (b), the ground height at the end points C and C outside the ground height polygon has already been obtained as the same ground height as the intersections A and A. Therefore, here, these points are grouped for each ground height polygon.

Next, at # 755, a line segment on the ground surface is virtually created by connecting the end points and the intersection points for each polygon. As shown in the cross-sectional view of FIG. 22 (c), a virtual ground surface line segment 112 connecting intersections A of the ground height polygon 110A is created, and intersections B,..., B of the ground height polygon 110B are connected. A virtual ground line segment 113 is created.

Next, in # 760, it is determined whether or not the virtual ground surface line segment has an overlap. In the cross-sectional view of FIG. 22C, since the virtual ground surface line segments 112 and 113 overlap, YES is determined in # 760, and the process proceeds to # 765.

In step # 765, an intermediate point of the intersection group is obtained. This is because, as shown in the cross-sectional view of FIG. 22D and the plan view of FIG. 22E, on the cross-section line 111, each of the intermediate points D1, D2,. The coordinates are determined.

Next, in # 770, each intermediate point is
It is determined which ground height polygon each belongs to. For example, in FIG. 22E, the intermediate points D1, D3, D
5 and D7 are determined to belong to the ground height polygon 110A, and the intermediate points D2, D4 and D6 are determined to belong to the ground height polygon 110A.
A and 110B are determined to belong to both.

Next, in # 775, the polygon of the uppermost layer is extracted from the ground height polygons to which each intermediate point belongs. For example, in FIG. 22E, the intermediate points D1, D3, D
5, D7 extracts the ground height polygon 110A, and the intermediate points D2, D4, D6 extract the ground height polygon 110B.

Next, in # 780, of the virtual ground surface line segments, the line segment constituted by the end point of the uppermost polygon is validated. That is, as shown in FIG. 22F, of the virtual ground surface line segments 112, the line segments 112a, 112b, 1
12c and 112d are validated, and the virtual ground surface line segment 113 is
Among them, the line segments 113a, 113b, 113c are made valid.

Next, in # 785, the boundaries of the valid line segments are connected by line segments. As a result, FIG.
As shown in (g), the ground surface line segment 114 of the sectional view is created.

On the other hand, in the example of FIG. 23A, since the ground high polygons 121, 122 and 123 do not overlap each other, as shown in FIG. 121a, 122a and 123a do not overlap each other. Therefore, NO is determined in # 760 of FIG.
In # 785, the boundaries of the line segments are connected by the line segments, and the ground surface line segment 125 of the sectional view is created (FIG. 23).
(c)).

As described above, by performing the ground high polygon overlapping process, for example, as shown in FIG.
Even when the median strip 46 is provided, a longitudinal section or a cross section can be accurately created.

According to the procedure described above with reference to FIGS. 11 to 23, the ground height calculation processing of # 315 in FIG. 9 and # 360 in FIG. 10 is performed to calculate the ground height, and the sectional ground line is calculated. Desired. And based on these, FIG.
According to the procedure described with reference to FIG. 10, the longitudinal section and the cross section are created. FIGS. 24 and 25 show examples of the created longitudinal and cross-sectional views, respectively.

In FIG. 24, human holes 52, 52 are provided at both ends of a power cable conduit 51. In the pipeline 51, the sections 51a, 51c, and 51e are set to cover the ground surface 56 (for example, 1.2 m) in accordance with construction standards. The section 51b of the conduit 51 is a telephone line 5
7. The water line 54 and the sewage line 53 are avoided, and the section 51d of the line 51 avoids the telephone line line 57 and the sewage line 53.

Further, in the pipelines 53, 54 and 57, which are existing underground objects managed by other companies, the type, diameter, number of holes, etc. of the pipeline are described as the flag 58, and the pipeline of the present invention is described. Table 5 showing 51 related data (span, earth covering, etc.)
9 is displayed at the bottom.

In FIG. 25, the power cable pipeline 51 of the present case is provided at a predetermined burying depth with respect to the ground surface 56, and the sewage pipeline 53 which is an existing underground object managed by another company. , A water line 54, a gas line 55, and a telephone line 57 are displayed.
As 5, the distance between the respective buried objects and the like are displayed.

As described above, the ground height on the laying route of the pipeline is required to create a longitudinal section, and the ground height on the traversing instruction line is necessary to create a cross section. The ground height is known only at the ground height survey point, that is, each vertex of the ground height polygon.

In the conventional three-dimensional survey, the height of the ground is measured at a location designated by a designer, and a longitudinal section and a cross section are created based on the result. On the other hand, even when the underground equipment drawing creation program of the present embodiment is used, the interval at which the ground height polygon is obtained is instructed to the surveying company as, for example, a ground height surveying interval instruction line.

In this case, at a site where the ground height changes rapidly, that is, the height of the ground frequently changes in a short distance, the interval between the ground height survey points is set to be small, and the ground height changes slowly, that is, flat. In a site where a continuous road or a slope with a constant slope continues, the interval between the ground height survey points may be set according to the state of the survey site, for example, by setting a large interval between the ground height survey points.

Also, when setting the ground height polygon after the survey, the area of the ground height polygon is set small in a site where the ground height changes drastically, and the ground height polygon area is set in the site where the ground height changes slowly. The size of the ground high polygon may be set according to the state of the survey site, for example, by setting it large.

In this way, even when the underground equipment drawing creation program of the present embodiment is used, the ground height polygon set based on the ground height measured at the predetermined ground height survey point during the survey is used. The ground height at a point other than the high surveying point can be obtained with relatively high accuracy, that is, with no problem in construction.

Therefore, according to the underground equipment drawing creation program of the present embodiment, after the survey is completed, the laying route of the pipeline is changed, and the traversing instruction line is set at a new position other than the ground height surveying point. Even in this case, a longitudinal section and a cross section can be created with relatively high accuracy.

Next, the continuous change of the line / stage of the pipeline (generally referred to as "broken pipeline") will be described with reference to FIGS. FIG. 26 is a perspective view showing an example of “pipe breaking”, FIG. 27 is a flowchart of pipe breaking processing, and FIG. 28 is a diagram showing an example of a display screen of the display unit 3 in the pipe breaking processing.

It is necessary to change the line / stage configuration of the pipeline halfway depending on the result of the survey of the present situation and the distance from the existing underground object. In this case, in the sections on both sides of the different point (point P3 in FIG. 12 (a)) where the type of the pipeline to be buried is changed, pipelines having different row / stage configurations are constructed. "Drainage of the pipeline" for continuously changing the height of the main body of the pipeline is performed.

For example, in FIG. 26, on both sides of the predetermined section 130 including the heterogeneous point P3, a state where the pipeline 131 having a three-row, two-stage, six-hole configuration is continuously changed to a pipeline 132 having a six-row, one-stage, six-hole configuration. It is shown.

The underground equipment drawing creation program according to the present embodiment has a function of automatically creating a drawing of "line breakage" on a longitudinal view according to an operator's specification.

At # 800 in FIG. 27, first, the operator instructs a conduit for changing the height of the main body in the longitudinal section. This instruction is performed, for example, by clicking the mouse 13 with the mouse cursor 133 positioned on the conduit 132 as shown in FIG.

Next, at step # 805, the operator instructs a pipeline to be connected to the pipeline. This instruction is performed, for example, by clicking the mouse 13 with the mouse cursor 133 positioned on the conduit 131 as shown in FIG.

Next, at step # 810, the operator instructs the horizontal length of the predetermined section 130. This predetermined section 1
For example, as shown in FIG. 28C, the horizontal length of 30 is set to a default value of 5 m based on the construction standard, and the numerical value can be changed by clicking the mouse 13 or the numeric key of the keyboard 12. .

Next, at # 815, the gradient of "pipe breaking" is calculated, and then, as shown in FIG. 28D, the vertical section is displayed again (# 820).

In accordance with the above procedure, a vertical sectional view in which "broken pipes" is performed is automatically created.

Next, the cross sectional view correction function will be described with reference to FIGS. 29 to 33. As described above, the underground equipment drawing creation program of the present embodiment calculates the ground height using the ground height polygon even when the ground height is not measured at the point where the traversing instruction line is specified, A cross section can be preferably created.

On the other hand, there is a case where a cross-section creation point is designated at the stage of surveying instruction before conducting surveying at the construction site. In this case, it is possible to create a more accurate cross section by measuring the ground height at a predetermined point on the crossing instruction line.

In the creation of these cross-sectional views, data on existing underground objects managed by other companies were registered after seeing the equipment management drawing of each company as described above (# 115 in FIG. 2). ) Since data is used, if the equipment management drawing is different from the current situation, the created cross section is not accurate and needs to be corrected.

Therefore, when constructing at a construction site, test digging is first performed, and after actually confirming the existing underground object, the main body construction is started.

FIG. 29 (a) is a plan view created based on on-site surveys and registered data of existing underground objects, and FIG. 29 (b) is a plan view thereof.
It is a cross section created based on the plan view of (a).

In the plan view of FIG. 29 (a), the company's own pipeline 141 and the human hole 142 are displayed on the display unit 3 along the designed laying route, and other companies that are existing underground objects are installed. The pipeline 143 is displayed based on the registration data, and the crossing instruction line 144 is set from the building 145 to the building 146.

In the cross-sectional view of FIG. 29B, the company's own pipeline 141, the competitor's pipeline 143, and the rising flag 147 are displayed at predetermined positions.

However, as a result of test digging and the like, the other company's pipeline 143 was found to be closer to
When it is found that the object is buried at a position close to 45, the operator, for example, changes the “change existing buried object” icon with the mouse 1
By clicking by 3, a current embedded object change processing routine is started.

FIG. 30 is a flowchart of a current state of buried object change processing routine, and FIG. 31 is a corrected plan view.

In # 900 of FIG. 30, first, the operator determines the route of the buried object (in the present embodiment, the conduit 143 of another company) on the plan view according to the result of test digging or the like.
Hand corrected. As a result, as shown in FIG. 31, a plan view in which the position of the conduit 143 of the other company is corrected is created.

Next, at # 905, the operator changes the value of the burial depth included in the attribute data of the buried object (in the present embodiment, the conduit 143 of another company).

Next, at # 910, an attribute of "changed" (for example, flag data indicating "changed") is added to the extension data of the embedded object to be changed (the other company's pipeline 143 in this embodiment). You.

FIG. 32 is a flowchart showing a schematic procedure of a cross-sectional view creation process in consideration of the cross-sectional view correction process, and FIG. 33 is a diagram for explaining the correction of the cross-sectional view.

In step # 950 of FIG. 32, when the operator designates a traversing instruction line on the plan view, the designated position is stored.

Next, in # 955, an existing underground object that intersects with the designated crossing instruction line is extracted. Next, in # 960, among the extracted existing underground object, the extension data is added to the extension data. It is determined whether or not there is one to which the attribute “changed” has been added. If not (NO in # 960), the process proceeds to # 975 and the cross section created based on the survey is displayed. .

[0146] If there is an object to which the attribute "changed" is added (YES in # 960), the figure representing the buried object is deleted from the cross section created based on the survey (# 965).

Next, in # 970, the "close" (the distance from other buried objects) is obtained from the corrected plan view (FIG. 31), and the value of "buried depth" is obtained from the attribute data of the buried objects. Then, a figure representing the buried object is generated, and
At 75, the cross section including the generated figure is displayed on the display unit 3 as shown in FIG.

In FIG. 33A, the conduit 143 of the other company is displayed at the automatically corrected position.
7 remains unchanged. Therefore, FIG.
33 is displayed on the display unit 3 and the operator lifts the approaching flag 147 by hand to obtain the drawing shown in FIG.
As shown in (b), a corrected cross section is created, and this cross section is stored in the memory 15.

As described above, in the underground equipment drawing creation program of the present embodiment, the position and the earth covering (buried depth) of the existing underground buried object managed by another company in the present situation by test digging and the like.
・ If it is found that the pipe type, diameter, number of holes, etc. are different from the plan based on the registered data, change the planar position of the existing underground object on the plan, and Such changes are dealt with by changing the pipeline attribute data of the existing underground object.

Further, the position of the existing underground object on the cross section has a function of automatically correcting the position based on the change of the plan view and the change of the pipeline attribute data. The operator only needs to make corrections such as "". Therefore,
Correction of the cross-sectional view can be easily performed, and an apparatus with good drawing correction workability is realized.

Although the above embodiment has been described by taking as an example a conduit for accommodating a power cable as an underground facility, the present invention is not limited to this, and a pipeline for telephone lines, a pipeline for gas, The present invention can also be applied to the drawing of equipment buried underground such as water supply pipes and sewage pipes.

[0152]

According to the first, eighth, and ninth aspects of the present invention, a part of all the survey points is used for the ground height survey when performing the planar survey for obtaining the current topography on the ground at the underground facility burial site. The ground height is measured for the point, and the ground height at the predetermined position is determined using the distance between the predetermined position and the predetermined ground height measurement point and the ground height at the predetermined ground height measurement point. The ground height at a position other than the survey point can be obtained. Therefore, by using this ground height, for example, a sectional view as an underground facility drawing can be created at a position other than the ground height surveying point.

According to the second aspect of the present invention, each of the ground height survey points is stored as a plurality of ground height polygons each having a plurality of ground height survey points as vertices. Therefore, the size of the ground high polygon can be set in accordance with the state of the survey site.

According to the third aspect of the present invention, each of the ground elevation polygons is formed so that a plane is formed substantially by the ground height of each ground height surveying point which is the vertex thereof. The ground height at an arbitrary position in the high polygon can be easily determined using the ground height on the side of the ground high polygon,
And it can be obtained relatively accurately.

According to the fourth aspect of the present invention, the ground height at an arbitrary position on the side of the ground height polygon is determined based on the ground height at the apexes at both ends of the side, so that the ground height polygon becomes substantially flat. Is configured as
The ground height at an arbitrary position on the side of the ground height polygon can be easily and relatively accurately obtained.

According to the fifth aspect of the present invention, a predetermined construction standard and a laying route of a pipeline designed on a plan view as underground equipment are stored and projected on the plan view. The ground height at the intersection between the side of the ground height polygon and the laying route of the pipeline is obtained as a value obtained by linearly interpolating the ground height at the vertices at both ends of the side in accordance with the distance between the intersection and the vertices at both ends. Therefore, it is possible to easily and relatively accurately create a cross-sectional view in which the designed pipeline as a drawing of the underground facility satisfies the construction standard along the installation route.

According to the sixth aspect of the present invention, data relating to an existing underground object is stored, and when creating a sectional view, the existing underground object is avoided so as to satisfy a construction standard. Since the designed pipeline is described at the position, it is possible to realize an apparatus with good workability in creating a sectional view.

According to the seventh aspect of the present invention, the traversing instruction line set to intersect the laying route of the pipeline in the plan view is stored, and the side of the ground high polygon projected on the plan view is stored. Since the ground height at the intersection with the crossing instruction line is obtained as a value obtained by linearly interpolating the ground height at both vertices of the both ends of the side in accordance with each distance between the intersection and the both vertices,
It is possible to easily and relatively accurately prepare a cross-sectional view in which the designed pipeline is described as an underground facility drawing along the crossing instruction line.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an electrical configuration of an embodiment of an underground equipment drawing creating apparatus according to the present invention.

FIG. 2 is a flowchart of an overall schematic procedure when burying an underground facility.

FIG. 3 is a topographic map showing an area around an intersection as an example of a construction target area for performing surveying.

FIG. 4 is a diagram illustrating an example of a display screen of a display unit on which a plan view is displayed.

FIG. 5 is a diagram showing an example of a display screen of a display unit on which a plan view and a longitudinal view are displayed.

FIG. 6 is a diagram showing an example of a display screen of a display unit on which a plan view and a cross-sectional view are displayed.

FIG. 7 is a flowchart showing a procedure for creating a ground high polygon.

FIG. 8 is a diagram illustrating an example of a generated ground height polygon.

FIG. 9 is a flowchart of a longitudinal section creation procedure.

FIG. 10 is a flowchart of a cross-section creation procedure.

FIG. 11 is a flowchart of a subroutine for calculating a ground height in # 315 of FIG. 9 and # 360 of FIG. 10;

12A is a diagram illustrating a ground height calculation position in a longitudinal section, and FIG. 12B is a diagram illustrating a ground height calculation position in a cross-sectional view.

FIG. 13 is a flowchart of a subsurface height calculation subroutine at the intersection of # 400 in FIG. 11;

FIG. 14 is an explanatory diagram illustrating ground height calculation at an intersection.

FIG. 15 is an explanatory diagram illustrating ground height calculation at an intersection.

FIG. 16 is a flowchart of a ground height calculation subroutine at an end point of # 405 in FIG. 11;

FIG. 17 is a flowchart showing a specific example of a search subroutine of # 600 in FIG. 16;

FIG. 18 is a diagram illustrating a specific example of a positional relationship between an end point for which inside / outside determination is to be performed and a ground height polygon to be subjected to inside / outside determination.

FIG. 19 is a diagram illustrating the calculation of a ground height at an end point.

FIG. 20 is a diagram illustrating the calculation of the ground height at an end point.

FIG. 21 is a flowchart of a subroutine for overlapping ground height polygons at # 415 in FIG. 11;

FIG. 22 is a diagram for explaining a ground high polygon overlapping process;

FIG. 23 is a diagram for explaining the creation of a cross-sectional view in a case where the ground high polygons do not overlap.

FIG. 24 is a diagram showing an example of a created vertical sectional view.

FIG. 25 is a diagram showing an example of a created cross section.

FIG. 26 is a perspective view showing an example of “pipe break”.

FIG. 27 is a flowchart of a pipeline breaking process.

FIG. 28 is a diagram illustrating an example of a display screen of a display unit in a pipeline breaking process.

29 (a) is a plan view created based on on-site surveys and registered data of existing underground objects, and FIG. 29 (b) is a cross-sectional view created based on the plan view of FIG. 29 (a).

FIG. 30 is a flowchart of a current state of buried object change processing routine.

FIG. 31 is a modified plan view.

FIG. 32 is a flowchart illustrating a schematic procedure of a cross-section creation process in which a cross-section correction process is added.

FIG. 33 is a diagram illustrating correction of a cross-sectional view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Storage part 2 Operation part 3 Display part 4 Printing device 5 Control part 11 Recording medium 12 Keyboard 13 Mouse 14 Hard disk 15 Memory (storage means, existing data storage means, standard data storage means)

Claims (9)

[Claims]
1. A storage means for storing a ground height measured at a part of a ground height surveying point among all surveying points when performing a plane survey for obtaining a current topographical landform at an underground facility burial site. A ground height calculating means for obtaining a ground height at a predetermined position by using a distance between the predetermined position and a predetermined ground height surveying point and a ground height at the predetermined ground height surveying point. Equipment drawing creation device.
2. The underground equipment drawing creating apparatus according to claim 1, wherein said storage means stores said plurality of ground height survey points as a plurality of ground height polygons having a plurality of said ground height survey points as vertices. An underground equipment drawing creating apparatus for storing the height of each place in a state of being associated with each other.
3. The underground equipment drawing drawing apparatus according to claim 2, wherein each of the ground elevation polygons is formed such that a plane is substantially formed by the ground height of each ground height surveying point which is a vertex thereof. An underground equipment drawing creating device, characterized in that
4. The underground equipment drawing creation device according to claim 3, wherein the ground height calculating means obtains a ground height at an arbitrary position on a side of the ground height polygon based on ground heights at both ends vertexes of the side. An underground equipment drawing creating device, characterized in that it is a device.
5. An underground equipment drawing creating apparatus according to claim 4, wherein said underground equipment drawing is created by using said ground height calculated by said ground height calculating means; And a standard data storage means for storing the installation route of the pipeline designed on the plan view as the underground equipment, and the ground height calculating means projects on the plan view The ground height at the intersection of the side of the ground height polygon and the laying route of the pipeline, a value obtained by linearly interpolating the ground height at both vertices of both ends of the side in accordance with each distance between the intersection and the both vertices. Wherein the drawing creating means creates a sectional view along the laying route in which the designed pipeline as the underground equipment drawing satisfies the construction standard. Underground equipment map Creation device.
6. An underground equipment drawing creating apparatus according to claim 5, further comprising an existing data storage means for storing data relating to an existing underground buried object, wherein said drawing creating means is used when creating said sectional view. An underground equipment drawing creating apparatus, wherein the designed pipeline is described at a position avoiding the existing underground object so as to satisfy the construction standard.
7. The underground equipment drawing creating apparatus according to claim 5, wherein the storage means stores a crossing instruction line set to intersect the laying route on the plan view. The ground height calculating means calculates a ground height at an intersection between the side of the ground height polygon projected on the plan view and the crossing instruction line, and obtains a ground height at both end vertices of the side at each of the intersection and the both end vertices. The value is linearly interpolated according to the distance, and the drawing creating means is to create a cross-sectional view describing the designed pipeline as the underground equipment drawing along the crossing instruction line. Underground equipment drawing creation device characterized by the above-mentioned.
8. When a ground survey is performed to obtain the current topographical landform at an underground facility burial site, the ground height is measured for a part of the ground height survey points among all the survey points, and the ground height at a predetermined position is measured. Using the distance between the predetermined position and the predetermined ground height surveying point and the ground height at the predetermined ground height measuring point.
9. A recording medium on which an underground facility drawing creation program is recorded and which can be read by a computer, and which is used for performing a plane survey for obtaining a current topographical landform at an underground facility burial site. A storage step of storing the ground height measured for a part of the ground height survey points among all the survey points in the storage means; and storing the ground height at a predetermined position with the distance between the predetermined position and the predetermined ground height survey point and A ground height calculating step for obtaining a ground height obtained by using a ground height at a predetermined ground height surveying point.
JP2001113544A 2001-04-12 2001-04-12 Underground installation drawing preparation device, its method therefor, and storage medium for storing underground installation drawing preparation program Withdrawn JP2002310653A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008505308A (en) * 2004-06-01 2008-02-21 クエスト トゥルテック,リミティド パートナーシップ 2D and 3D display system and method for furnace tube inspection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008505308A (en) * 2004-06-01 2008-02-21 クエスト トゥルテック,リミティド パートナーシップ 2D and 3D display system and method for furnace tube inspection

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