Document Details |
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| Name of Department/Committee : | WRD 09 | ||||
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| Document Number : | WRD 09 ( 26589) | ||||
| Document Title [English] : | Criteria for Design of Hydraulic Jump Type Stilling Basins with Horizontal and Sloping Apron | ||||
| Document Title [Hindi] : | क्षैतिज और प्रवण एप्रन के साथ द्रव-चालित जंप टाइप स्टिलिंग बेसिन के डिजाइन के लिए मानदंड | ||||
| Document Type : | Revision | ||||
| Language : | English | ||||
| Priority : | 3 | ||||
| ICS Code : | 93.160 | ||||
| Date of Project Approval : | 30-07-2024 | ||||
| Standards to be Revised : |
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| Standards to be Superseded : |
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Classification Details |
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| Group : | Civil Engineering Design and Construction |
| Sub Group : | Hydraulic and other related structures |
| Sub Sub Group : | Design, Construction, Planning related to Dams |
| Aspects : | Code of Practice |
| Risk : | None |
| Certification : | Not Certifiable |
| Short Commom Man's Title : | |
| ITCHS Code : | |
| Ministry : |
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| Sustainable development Goals : | |
| Degree of Equivalence : | Indigenous |
| Identical/Equivalent Standards : | |
| Organization Type: | |
| Sl.No. | Synosis Points | |
| 1 | The design of downstream protection works or energy dissipators below hydraulic structures occupies a vital place in the design and construction of dams, weirs and barrages. The problem of designing energy dissipators is one essentially of reducing the high-velocity flow to a velocity low enough to minimize erosion of the natural river bed. | |
| 2 | This standard was first published in 1968. The first revision of this standard incorporates the latest generalised design trends in vogue emphasizing the operational aspects of stilling basin. Following are the major changes incorporated in the first revision of this standard: a) Provision of divide walls; b) Necessity of cylindrical end sill; c) Bulking of flow and stilling basin free board; d) Calculation of head loss due to friction over the spillway surface; e) Informative list of projects with stilling basin as energy dissipator for existing and proposed dam spillways; and f) Graphs for ratio of tail water depth to D1 with respect to Froude number incorporated. | |
Timeline Details |
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Stages |
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| Sl. No. |
Stage | Date of Occurence | Remarks | Circulated to | Files |
| 1 | Generation of Document Number | 30-07-2024 | ------- | ||
| 2 | P-Draft Waived | 18-09-2024 | ------- | ||
| 3 | WC Draft | 18-09-2024 | Duration : 60 Days Submitted for HOD approval |
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| 4 | WC Draft | 19-09-2024 | WC rejected by HOD Remarks: resubmit the document as discussed |
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| 5 | WC Draft | 19-09-2024 | Duration : 60 Days Submitted for HOD approval |
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| 6 | WC Draft | 19-09-2024 | WC approved by HOD |
WRDC WRD 09, | ------- |