Slope stability problem of the Hillock portion of Kanupur Irrigation Project, Keonjhar district, Odisha Geological Survey of India, Eastern Region, State.

Slides:

Advertisements

Similar presentations

SITE INVESTIGATION.

Advertisements

Notes.  Any of the sciences that deal with the Earth or its parts.  The four major fields of study are:  Astronomy- celestial bodies and the universe.

SCHOOL OF CIVIL ENGINEERING Presented by: Jonathon Simons Sanjo Adeyemo Taiwo Oshodi An Investigation into the Geological Faults and Subsequent Construction.

Detailed Geologic Mapping: An Essential Step in Foundation Design for Karst Sites Eric J. Seksinsky, P.G., P.E. Bashar S. Qubain, Ph.D., P.E. Jianchao.

Earth and Rockfill Dams

Isopach and Isochore Maps

“Man’s heart away from Nature becomes hard.” -Standing Bear.

The Distribution of Permeable Zones Within the Ogallala in the Southwest Kansas Groundwater Management District 3 PRESENTED BY P. ALLEN MACFARLANE and.

Malpasset Dam Disaster

Foundations. Foundation supports weight of structure –Includes soil and rock under foundation –Building construction described by foundation type Slab.

Site selection using GIS techniques Khoncheh dam site selection S. Khalil Aghili Engineering Geologist Isfahan Regional Water Company.

Structure Contour Maps

Unit 5 – Weathering, Erosion, & Deposition Review

CE 120 Introduction to Civil Engineering

Rock Coring Obtain undisturbed samples of solid, fractured, or weathered rock formations.

Geophysical and Geochemical Exploration Techniques  The specification sates that you should be able to:  Describe the geophysical exploration techniques.

CORES. Cores are sections of the reservoir formation obtained during drilling. They are obtained using a special drill bit TYPES Regular Cores Side Wall.

Dams and Water Supply The specification states that in relation to dams you need to be able to: Interpret the geological factors affecting the construction.

Groundwater Dams  In most lowlands of Ethiopia where the annual rainfall is below 600 mm, the rains in the highlands drains towards the low elevation.

Regional Geology of Khwisero District, Kenya April 2012 Scott Patterson.

Department of Civil Engineering,

Iron Ore Group, Eastern Indian Craton Asish Basu University of Rochester New York

Exploration Significance of Unconformity Structures on Subtle Pools Kongyou Wu, Ph. D Associate Professor China University of Petroleum.

Geophysical and Geochemical Exploration Techniques  The specification sates that you should be able to:  Describe the geophysical exploration techniques.

Dr. Tark Hamilton Camosun College

Rocks and Weathering Moving Rocks. Do rivers flow at the same rate all year round? As a river flows to the sea, the water carries rocks and stones along.

CIVIL ENGINEERING. Civil engineering work includes: dams embankments motorways bridges buildings cuttings quarries tunnels mines All these need to take.

3 Easy Steps STEP 1: SITE SELECTION Select Area with Unsuitable Rock Types.

THE TETON DAM FAILURE.

Hydrogeology in the Limpopo Basin

SOIL MECHANICS-1 DEEP FOUNDATIONS PRESENTATION TOPIC MEMBERS O8-CE-29

Copyright of Shell, Exploration and ProductionRestricted The Arrowhead Project – protecting the water Bruce T. Mitchell.

SEMBODAI RUKMANI VARATHARAJAN ENGINEERING COLLEGE DEPARTMENT OF CIVIL ENGINEERING FOUNDATION ENGINEERING BY KARTHIVELU.

Models of the Earth Section 3 Section 3: Types of Maps Preview Key Ideas Topographic Maps Topographic Maps and Contour Lines Index Contour, Contour Interval,

 All civil engineering projects like dams, reservoirs etc. constructed on earth crust and constructed by material obtained from the crust.  So it is.

Rock Relationships and Geological Histories You must have the presentation on Slide Show mode. On opening the presentation, you may be asked to enable.

EBS101 ENGINEERING GEOLOGY DR HAREYANI ZABIDI

GEOLOGICAL INVESTIGATION

CVE 515 EMBANKMENT DAM ENGINEERING ENGR S.O ODUNFA DEPT. OF CIVIL ENGINEERING UNIVERSITY OF AGRICULTURE, ABEOKUTA.

SAL INSTITUTE OF TECHNOLOGY AND ENGEENIRING RESEARCH Ahmedabad B.E (3rd Semester)-Civil-Shift 2 December-2014 Shah Disha R.( ) Gosai Beran.( )

GEOTECHNICS & APPLIED GEOLOGY. Prepared by: Group D

Models of the Earth Section 3 Section 3: Types of Maps Preview Key Ideas Topographic Maps Topographic Maps and Contour Lines Index Contour, Contour Interval,

DESIGN AND CONSTRUCTION GUIDELINES

Deptt. of Irrigation and Drainage Engineering, Dr. PDKV, Akola

Visit for more Learning Resources

Assoc. Prof. Dr. Tarkan Erdik

RISK ANALYSIS AND REMEDIAL WORKS AT KAAIMANS PASS

Marcell Lux, hydrogeologist engineer

SNS COLLEGE OF ENGINEERING , COIMBATORE - 107

Chapter 3 Section 3 Types of Maps Objectives

Look at the block diagram below.

Geotechnical Engineering II

GANDHINAGAR INSTITUTE OF TECHNOLOGY

These workers are drilling a hole that will be more than two kilometers deep. Later they will lower instruments into the hole to record data at that depth.

AN ALLEGHANIAN (?) BRITTLE THRUST AND ASSOCIATED HINTERLAND-DIRECTED

SAFETY IS TVA’S NUMBER ONE PRIORITY

Lecturer: Dr. Frederick Owusu-Nimo

Engineering Geology I (GED355) S

Relative Age of Rocks Activity

Chapter 8 section 1 RELATIVE AGE.

Presented By BHUPENDRA SINGH, DIRECTOR, GEOLOGICAL SURVEY OF INDIA

Geological Survey of India, SR, Hyderabad

TBM BORABILITY AS A FUNCTION OF ROCK MINERALOGY AND GEOTECHNICAL PROPERTIES IN SLBC TUNNEL OF AMR PROJECT, TELENGANA, INDIA D.Ramakrishna Assistant Professor,

Back Analysis along LANDSLIDE affected slopes of THE Bandarkot village in Uttarkashi district of Uttarakhand Sebabrata Das*, Prathvi Singh*, Bhupender.

Earth and Rock fill Dams

These workers are drilling a hole that will be more than____km deep

These workers are drilling a hole that will be more than two kilometers deep. Later they will lower instruments into the hole to record data at that depth.

Presentation transcript:

Slope stability problem of the Hillock portion of Kanupur Irrigation Project, Keonjhar district, Odisha Geological Survey of India, Eastern Region, State Unit: Odisha, Bhubaneswar Presented by Dr. Debaprasad Sahoo Authors: D. Sahoo, D. Bhattacharya, S. Kumar, Jaydip Mukherjee

PANAROMIC VIEW OF KANUPUR IRRIGATION PROJECT spillway Head regulator Baitarani Length of the Dam-3400 m Hight-48 m Homogenous earth dam on two flank. Spillway at right flank Mainly Irrigation Purpose. Hillock D/S Sona river PANAROMIC VIEW OF KANUPUR IRRIGATION PROJECT

GEOLOGY OF THE PROJECT AREA Location The Project site is located to the east of Bonai-Keonjhar horse shoe fold belt. Mainly occupied by Archaean Supracrustals of Iron Ore Supergroup which is unconformably overlying the Singhbhum Granite Complex, later intruded by dolerite dykes. . At the hillock site, the basement Singhbhum Granite is overlain by Kolhan Group with a basal conglomerate and ferrugeious sandstone/quartzite at the top.

PROBLEM ANTICIPITATED Anticipitating stability problem of hill slope of the Hillock portion (RD 1440 m –RD 1650 m) after impounding of reservoir. HILLOCK Upstream face of the hillock downstream face of the hillock Gulley formed in feldspathic granite

HOW TO RESOLVE THE ISSUE? SURFACE & SUBSURAFCE STUDIES OF THE HILLOCK PORTION SURFACE STUDIES: Detailed Geological Mapping SUBSURFACE STUDIES: Interpretation of drill core

DETAILED GEOLOGICAL MAP OF THE AREA N

Ferruginous sandstone & cherty quartzite Polymictic conglomeate –consisting of subrounded to rounded pebbles of BHQ, BHJ, chert & metabasic rock Highly weathered & decomposed granite (W4-W5 weathering grade) and moderately weathered granite (W3-W4 grade)

SUBSURFACE STUDIES Drill holes has been drilled in & around the hillock to assess the subsurface condition. Study of drill core logging indicates: Weathered bed rock - surface level to 7.5 m depth. Fresh rock (granite gneiss/metabasic)- 19.85 m-24.8 m

One bore hole was drilled from the top of the hillock to know the entire succession of the Hillock portion

Box-1 Box-2 Box-3 Box-4

GEOLOGICAL SECTIONS BASED ON DRILL CORE LOG DATA

Groutibility test carried out around the Hillock indicates a positive groutibility of the rock mass. Water loss upto a depth 30 m : 10.39 Lugeon- 337.42 Lugeon. Post grout water loss : Nil

For protecting hillock portion from the reservoir, the following remedial measures are to be taken after due consideration. Provision of curtain grouting in the upstream part of hillock encircling the whole hill mass along with consolation grouting. Provision of protection wall encircling the hillock portion with foundation on fresh, hard granite/granite gneiss. Provision of standard section of earth dam with partial cut off and grout curtain with proper benching of hill slope.

THANK YOU