Headworks and barrages in pakistan 1. Difference b/w headwork and barrage. Most of the diversion headworks for important canal systems in our country are permanent diversion headworks, and the same are described in the following sections. A barrage is a type of low-head, diversion dam which consists of a number of large gates that can be opened or closed to control the amount of water passing through. Diversion Headworks 1. The main difference between the storage weir and dam is only in height and duration for which the supply is stored. 4. OBJECTIVE OF SURVEY Topographical surveys performed at the design stage of the headworks shall be geared Monument A physical object set in relatively stable material or in a structure and used as an indication of the position on the ground of a survey station. DIVERSION HEADWORKS Weir The weir is a solid obstruction put across the river to raise its water level and divert the water into the canal. Content 1. Barrage is constructed in a path of river to block water. Permanent diversion headworks consists of a permanent structure such as weir or barrage constructed across the river to raise the water level in the river and divert it into the canal. TOPICS: HEADWORKS DIFFRENCE B/W HEADWORKS AND BARRAGE HEADWORKS IN PAKISTAN 2. The flow of a river is a seasonal flow. Types of Diversion Headworks. Misclosure The difference between a computed and measured value. The main difference between a storage weir and dam is only in height and duration for which supply is stored. The main difference between a storage weir and a dam is only in Layout Diversion Head Works 4. Permanent headworks have a permanent structure in the form of a weir (or a barrage) constructed across the river. If a weir also stores water for tiding over small periods of short supplies, it is called a storage weir. Both are constructed across the river to maintain the flow of river, for diverting water to canal for irrigation, for generating electricity. Whereas barrage is a part of headwork. In this video you will get information about Indus River System of Pakistan. This is a list of barrage and Headworks in Pakistan. Definition of a headwork. Most of the headworks of important canal systems are of permanent type. 2. 3. Similar to weir, but the heading up of water is effected by the gates alone. So it become often confusing to distinguish between both. No solid obstruction is put across the river. GROUP MEMBERS • AHMAD ALI • MUHAMMAD BILAL • MUHAMMAD IBRAHIM • HARRIS KHAN • BILAL AHMAD (BATCH 2016) 3. Types of Diversion Head Works 2. There is confusion between these terminologies which are explained in this article. So a headwork is a complete system of structures. Weirs and Barrages 3. Learning Objectives 1. A headwork consists of a weir, canal head regulator, gate structure (barrage) . No solid structure across river. Sometimes more water is required and the source is limited. Difference Between Dam Weir and Barrage – Dams, weirs and barrages all are types of headworks used to increase the head of water on the upstream side. Barrage: The function of barrage is similar to that of weir; but the heading up of water is affected by the gates alone. Causes of Failures of Weirs and Barrages on Permeable Foundations 5. A dam stores the supply for a comparatively longer duration. Map of the major rivers, lakes, dams, barrages and reservoirs in Pakistan This list is incomplete ; you can help by adding missing items with reliable sources . This allows the structure to regulate and stabilize river water elevation upstream for use in irrigation and other systems. DIVERSION HEADWORKS (WATER RESOURCES ENGINEERING – II) UNIT – V Rambabu Palaka, Assistant ProfessorBVRIT 2. Barrage. 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