By
Mr. S.L. Ghorpade
Under the guidance of Prof. A.B. Shendge
Dattakala Group of Institutions Faculty of Engineering, Swami – Chincholi (Bhigwan).
Abstract- The construction of tunnel is important for different purposes. They can be constructed for railways, roadways, pedestrian footways and can be built in hard rock, soft ground, river bed and are also used to convey Hydroelectric power, water stream, or as a sewer. The construction of Diversion Tunnel, Pressure Shaft, and Tailrace Tunnel to convey water is considered in this project. To identify Scheduling of different activities by various methods Network Diagram, C.P.M., P.E.R.T. and their cycle time is calculated. Scheduling for different activity is carried out with the help of Network Diagram & Primavera Software will be carried out in a project stage II. Study of Estimation for a Diversion Tunnel, Pressure Shaft, and Tailrace Tunnel by both methods. Excavation in heading and benching, Rock bolt support work, lining work is considered for cycle time and cost estimation calculation in Diversion Tunnel, Pressure Shaft, and Tailrace Tunnel. Estimation is also carried out by two methods. The comparison of two methods adopted for excavation work and estimation will be carried out in a project stage II.
Keywords- Scheduling, C.P.M., P.E.R.T., Gantt chart, Network Diagram, Estimation, Heading, Benching, Cycle time, Lining, Rock Bolts, Diversion Tunnel, Pressure Shaft, Tailrace Tunnel.
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In Driven cast in situ concrete pile construction circular reinforcement stirrups (links) how much spacing required? As per IS 2911 cl 5.11.3 it shall be not less than 150 mm. As per drawing mention 100 c/c so it’s necessary rectification required or finalized?
Since, it is less than the IS so, it can be used.
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As the need for developing infrastructure of one country is increasing day by day the need for civil engineers to cope up with the current situation is required which has increased vastly during the past two years.There is a bright future for civilians in the forth coming years.Try to have the practical knowledge in all the subjects which you are learning.
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I m doing B-tech. in CIVIL ENGINEERING. can u give me more idea about road const., buildhng const., bridge const……
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what is hard rock or soft rock during excavation? how rocks are classified as per I.S. specifications?
I want to learn hoe to prepare Bar Bending Schedule. Can anybody give me suggest which book or I may have to refer?
what is criteria of fixing lap length of rebars…eg.. 50d,76d ..etc
it’s based on the grade grade of concrete and type of structures., it should not be less than the 47d to 53d.,
Hi dhiren,
It is 50d.
i want to know the future scope in civil engg………..
As per IS ,,,we can use nominal mix concrete is up to M20 Grade,,, if may i going to M25 Grade by nominal mix, cement consumption will be above 500kg .,,,but as per IS Max cement content is 450kg/m3 only,,,
So how to calculate ratio for M25 grade by nominal mix.
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