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General Layout of Headworks | Design of Outlets | Radial Gate Layouts - Pier Profiles | Canal Structures

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GATE CIRCLE

ROLE OF GATES CIRCLE

1. Designs of spillway Gates 
2.Designs of Outlet Gates. 
3.Preparation of General layout of:  
    a. Irrigation outlets, (I.O.)   
    b. Power outlets. (P.O.). 
    c. Irrigation Cum Power Outlets (I.C.P.O), 
    d. River outlets(R.O.)  
4.Design of Appurtenant works (R.C.C. component etc.) for Outlets.
5.Design of Trash rack Panel & Intake gate for L.I.Scheme.
6.Design of major canal structures.
7.Preparation of General layout of Head Works of all major projects in Vidharbha Region.
8. Necessary assistance to field officers in getting clearance of projects from Central Water Commission,New Delhi.

Gates Circle has uptill now standarised drawings for Spillways & Barrages as:

Radial gate size 12m.(H) x 8m.(V)
Radial gate size 12m.(H) x 6.5m.(V)
Radial gate size 12m.(H) x 5m.(V)
Radial gate size 8m(H) x 4m.(V)
Radial gate size 12m.(H) x4m.(V)
For Barrages
Vertical lift gate 12m(H) x 5m (V)
Vertical lift gate 15m (H) x 9 m (V)
Vertical lift gate 15m (H) x11m (V)
Vertical lift gate 15m(H) x 12m (V)

                Karanjawan

Also the largest ever size of Radial gate in Maharashtra state as 15m.(H) x 12m.(V) has been designed by this office. These gates were manufactured and successfully erected by Mechanical Organisation of Irrigation Department on Upper Wardha Project. These gates are working nicely.

Following Outlet gates for various sizes and heads have been standerdised:

Sr.No.
Vertical lift Gate size
Range of design head in m.
1
0.9m. x 0.9m.
7m.-20m.
2
1.2m. x 1.2m.
15m-50m.
3
1.2m. x 1.8m.
15m.-30m.
4
1.5m. x 2.4m.
25m.-35m.

                   Manjara

Up till now the maximum outlet gate size as (H) 3.895m. x 3.695m.(V) for design head of 58.5m. is prepared by this office. The design work of I.C.P.O. with generating capacity ranging from 0.9MW. to 2.5 M.W. for 19 projects is complete & Design work of project having generating capacity upto 10MW. is in progress.
Structural design work of various components is carried out in this Circle.All the fabrication drawings and fabrication work is done at various workshops owned by Mechanical Organisation. Hence Mechanical Organisation is playing the role of sister concern for this Circle. The designs & manufacturing of various types of hoists are being done by Mechanical Organisation.
 
The work of designs & drawings for Canal structures like syphon, aquaduct across the nallas/rivers are being done in this circle.
 
The assignments for strengthening and renovational measures for old structures i.e.outlets/Gates/canal structures are successfully completed.

Uptill now this office has done large number of the design works of canal structures
some of the noteworthy are as below.
 
The works designed by this Organisation has been awarded with most outstanding bridge National awards the Institution of Bridge Engineers (India) are (i) Kolganga aqueduct of Nandur Madhmeshwar Project- R.C.C. box (Year 2000) (ii) Hunga aquaduct 1300m. long with prestress concrete twin box system on Kukdi Left bank Canal. (Year-1998)
The M.S. pipe canal syphon about 1200m. long for Hetwane left bank canal.
Design of R.C.C. box aqueduct having 1920m. length costing 50 Crores. on Yerala river in TembhuL.I. scheme aqueduct. The typical aqueduct unit is 96m. long. It is supporteed on two trestle piers monolithically connected to the box through inclined members. The unit thus has 12m. over hang at either end with 22m. long sections between inclined members. Over each of the piers &28m. long section between 2 trestle piers.
Norms for design of canal structures:-
The structure fulfilling following Norms are referred to this office for design.
a) Canal structure costing more than Rs. 2.5 Crores.
b) Pier height more than 15m from foundation and canal discharge more than 35 cumecs.
c) Hazard potential structures costing more than Rs. 1 Crores.

 


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