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Sewer Network Design Software

ESurvey Sewer Network

  Sewer Network

  Dia, slope optimiser



Sewer Network

Diameter & Slope Optimizer
Design Optimized Sewer Network using your CAD Drawing

Sewer Network

It is the network of underground pipelines and sewers receiving and draining waste waters away from population centers and industrial enterprises and toward the appropriate treatment facilities forms the principal element of a sewerage system.

An urban sewer network consists of pipe networks draining city blocks, buildings and groups of buildings, and streets, sewage mains, and other sewer connections. The lines of the sewer network running within individual buildings are connected to the network of that group or block of buildings through special drainage outlets. Manholes are provided for inspection and repairs. Industrial enterprises may have several sewer networks for removing effluents of different composition like strong acids or bases as effluents.

Depending on topography, ground conditions, the composition of the effluents, and sequence of construction, networks may be perpendicular, transverse, parallel, zonal, or radial. Whenever possible, sewer networks are designed to use a gravity-fed system to transport household and industrial effluents. The hydraulic calculations necessary in designing a sewer network consist in determining the diameter of the pipes and their load and the rate of flow of the effluents. The calculations invariably take into account of Manning’s formula. The network should be deep enough to protect the pipes against damage by surface transport, dead loads or any other loads which could damage the pipes which are laid underground.

The choice of pipe laying material depends on the composition of the effluents and groundwater’s and on the purpose of the pipeline. A gravity-fed sewer network is made from Salt Glazed Stone Ware Pipe, RCC Pipes with either collar joints or sand S joints, Steel welded or riveted, Cast iron Lined or Unlined, AC Pipes and plastic smooth pipes. The large-diameter mains are made from reinforced-concrete pipe or prefabricated sections of reinforced concrete. Careful fitting of the joints in laying the pipe helps ensure water tightness and long life.

Sewer Network Module of ESurvey Civil tools allows you to design Sewer Networks easily from you CAD data.

Benefits.

  1. One tool to complete all the required complicated calculations and longitudinal drawings.
  2. Its capability to handle multiple networks in one go.
  3. It is best appreciated for its ease of use, it saves considerable time.
  4. It eliminates most of the manual errors which could creep in due to the complication of handlings several inputs and output parameters.
  5. It gives a comprehensive excel output with all the design calculations.

Help


SEWER NETWORK


Introduction

Sewer Network Module of ESurvey Civil Tools helps you to model sewer network with easy-to-use and powerful modeling tools. Sewer Network recommends the most cost-effective pipe sizes, and invert elevations, pipe slopes maintaining allowable flow velocities avoiding unnecessary earthwork excavation, while meeting design restrictions.

Sewer Network Module works directly with entities exported from your familiar CAD Package such as AutoCAD, BricsCAD.

Following are the simple steps involved to design Sewer Network
  1. Open drawing having Survey Data in AutoCAD
  2. Identity and Place Manhole attribute blocks in the drawing.
  3. Update the Manhole attribute information using various AutoLisp commands provided with the software
  4. Export the Manhole information to ESurvey Civil tools interface
  5. Process the data in simple steps and prepare the reports and Longitudinal Section Drawings

Preparing Drawing for Sewer Network in CAD
Sewer Network Module expects you to insert the Manhole data in an attribute block. “ESS_MH” is the attribute block name which has the following fields

Node Number
Connecting Node
Ground Level
Invert Level
Slope
Manhole Type
Pipe Dia
Population
LCPD (Litres Per Day)
Line Name
Lowest Level
& 2 Custom Fields

A set of Lisp programs is provided to help you populate required information for these attributes.

Sl. Command Description
1 CMH Create Manhole Block
2 IMHP Insert Manhole at Pick Point
3 IMHC Insert Manhole at given Distance / Vertex along a Polyline
4 IMHX Insert Manhole at Insertion point of Selected Text, Block or Point
5 IMHL Insert Manhole at End Points of Selected Line
6 IMHN Increment Manhole Number
7 CDLT Create Line Type - Direction
8 UMFV Bulk Update Field Value
9 UMGL Update &Ground Level to Manholes
10 SMFV Search Manhole Field Value
11 CMFV Copy Field Value from Selected Text
12 FDMH Find Duplicate Manhole
13 IBMT Insert Blocks depending on Manhole Type
14 UCNN Update Connected Node Number
15 UCNL Update Connected Node Number by selecting Line
16 UCNP Update Connected Node Number along a Polyline
17 UPIL Update Invert Level
18 3DMH Elevate Manholes to 3D Point
19 2DMH Remove Z Value (Elevation) from Selected Manholes
20 EMHI Export Manhole Information to a CSV File
21 IMHI Import Manhole Information from a CSV File
1. CMH - Create Manhole Block
2. IMHP - Insert Manhole at Pick Point
3. IMHC: Insert Manhole at given Distance / Vertex along a Polyline

After running IMHC command ESS_MH block will be inserted at vertex point and at given intervals

underground design made automated
4. IMHX: Insert Manhole at Insertion point of Selected Text, Block or Point

After running IMHX command Manhole block at selected text

underground design made automated
5. IMHL: Insert Manhole at End Points of Selected Line

underground design made automated
6. IMHN: After inserting the manholes if you want to change the manhole number in a specific order, use this command to Increment Manhole Number.

underground design made automated
7. CDLT: When you draw lines connecting manholes it is important that you have to draw the lines in the flow direction to help other commands to automatically update the connection information. If you keep the line type of connecting line as Flow Direction, then you will come to know the direction of Polyline.

8. UMFV - Bulk Update Field Value
After inserting the manhole numbers, if you want to update some of the attribute values of the block in multiple blocks, you can use UMFV command.

    1. Node_Number,
    2. Connecting_Node,
    3. Ground_Level,
    4. Invert_Level,
    5. Slope,
    6. MH_Type,
    7. Pipe_Dia,
    8. Population,
    9. LCPD,
    10. Line_Number,
    11. Lowest_Level,
    12. Custom1,
    13. Custom2

Suppose say you want to change the MH_Type as Simple in multiple blocks you can indicate 5th field to be updated as Simple for Multiple Maholes at once.

underground design made automated

9. UMGL: Update Ground Level to Manholes. If you explicitly know the ground levels for each of the manhole, then you need not have to use this program. In case if you have survey data and expect the software to interpolate the values at each manhole, then using UMGL command you can Update ground level of all selected manholes by keeping all elevation texts in Elev Layer.

underground design made automated

10. SMFV - After inserting multiple manhole, searching a manhole with specific number becomes tedious. Using SMFV command you can Search Manhole depending on a Field Value.

underground design made automated
11. CMFV - Copy Field Value from Selected Text

Sometimes you will have Field value as a text in drawings. Using CMFV command you can update the value of the multiple manhole with the content of the text. For example, if you want to update the ground level of the manhole with elevation text use CMFV command.


underground design made automated

underground design made automated
12. FDMH- Find Duplicate Manhole

After you insert many manholes using different techniques, if a manhole gets created with duplicate values, then further processing will become difficult. Use FDMH command and Find Duplicates as a quality check measure.

After executing command FDMH, it will find Duplicate Manhole if any like below image.

underground design made automated
13. IBMT - Insert Blocks depending on Manhole Type

After updating the manhole type in all the manhole blocks, if you wish to represent different blocks at positions of Manhole, depending on Manhole type specified in a block, you can use IBMT command.

14. UCNN - Update Connected Node Number

After all the manholes are inserted in the drawing. Before exporting the information to Civil Tools interface, you have to update connected node information in each manhole. Using UCNN command you can update the connected Node number.

underground design made automated
15 UCNL- Update Connected Node Number by selecting Line

By selecting multiple lines representing the connection between manholes also you can update the connected manhole number.

16. UCNP- Update Connected Node Number along a Polyline

underground design made automated
17. UPIL- Update Invert Level

If you have specified the line slope in manhole and if you want to find out the invert level depending on the invert level of the connected node, you can use UPIL command and update invert Level.

underground design made automated
18. 3DMH - Elevate Manholes to 3D by considering the Ground Level Value.

underground design made automated

underground design made automated
19. 2DMH- Remove Z Value (Elevation) from Selected Manholes

underground design made automated

underground design made automated
20. EMHI- Export Manhole Information to a CSV File. This exported information can either be imported in Civil tools or you can modify the data in Excel and import in CAD.

underground design made automated
21. IMHI - Import Manhole Information from a CSV File

underground design made automated

underground design made automated

Once you prepare complete drawing with manhole insertions and updating respective information, using EMHI command export the information.

Import Data to Civil Tools Interface from CAD or Excel and Design

Open ESurvey Civil Tools click on File menu and New File option

underground design made automated
Select project type, give filename and Save it

underground design made automated
Go to Main menu, click on Sewer Network sub menu

underground design made automated
In ‘Network’ tab, click on Import button Import Sewer Network window will appear. Click on Import button, then close window. After importing the data, you are allowed to change some of the attribute information.

underground design made automated
In ‘Network’ tab, Click on Design button to Design automatically all invert levels for each Manhole

underground design made automated
Export Report and Drawing

Go to ‘Details’ tab, Click on Report button

underground design made automated
Report exported to Excel

underground design made automated
Go to ‘Longitudinal Section’ tab, Select From Node and To Node then click on the Display button. Click on CAD button to export Drawing to CAD package.

underground design made automated