Dia, slope optimiser
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.
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.
|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|
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.
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.
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.
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
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.
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