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Research Highlights

ON-SITE CALIBRATION OF FLOWMETERS AT AJMER, RAJASTHAN FOR M/S NS INSTRUMENTS AND CONTROLS, NEW DELHI

DESK STUDIES FOR THE DESIGN OF COASTAL PROTECTION MEASURE FOR FISHERMAN COLONY NEAR SHIVSHASTRI NAGAR AT CUFF PARADE, COLABA, MUMBAI, MAHARASHTRA

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PARALLEL SEISMIC TEST AT UPSTREAM AND DOWNSTREAM SECANT PILES OF SUNDILLA BARRAGE OF KALESWARAM LIFT IRRIGATION SCHEME (KLIS), TELANGANA

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HYDRODYNAMICS AND OPTIMIZATION OF DREDGED DISPOSAL LOCATION FOR THE PROPOSED PORT AT MACHILIPATNAM, KRISHNA DISTRICT, ANDHRA PRADESH

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SITE INSPECTION OF EARTHEN DAMS OF RELAMPADU AND MUCHONIPALLY BALANCING RESERVOIRS, TELANGANA

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PHYSICAL MODEL STUDIES FOR STUDYING WAVE TRANQUILLITY ASPECTS INSIDE HARBOUR BASIN FOR DEVELOPMENT OF EASTERN BREAKWATER AND JETTY AT PORBANDAR, GUJARAT

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DESK STUDIES FOR DESIGN OF COASTAL PROTECTION WORK AT VILLAGES UMARASADI, MACHHIWAAD, AND KOLAK, TAL. PARDI, DIST. VALSAD, GUJARAT

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DESK STUDIES FOR DESIGN OF COASTAL PROTECTION WORKS AT HAJI ALI DARGAH, WORLI AND GEETANAGAR, MUMBAI

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PHYSICAL MODEL STUDIES FOR PROPOSED BARRAGE ACROSS RIVER TAPI IN RUNDH - BHATHA, SURAT, GUJARAT

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SEDMENTATION STUDIES FOR RIVER UMIEW, MEGHALAYA

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$Seismic equipment for MASW and refraction studies$

Equipment for cross hole seismic testing

Equipment for cross hole seismic Tomography

Cross-Hole Seismic Tomography Studies for delineation of distressed zones in dam body

Electrical Resistivity Imaging (ERI) study for delineation of water saturated zones near dam body

Geophysics division is engaged in carrying out geophysical studies to offer site specific solutions to the engineering geotechnical problems related to foundation investigations of civil structures like hydro electric, thermal, nuclear power plant, ports and harbours and other irrigation projects. This includes delineation of bedrock profile and its quality, evaluating dynamic elastic moduli; seismic tomography studies for delineation of weak zones; Estimation of average shear wave velocity (Vs30) values for determining the shear strength of the subsurface strata; dredgeablity estimation for soft sediments under water; locating subsurface cavities and measuring earth resistivity for earthing purpose; delineation of subsurface utilities, oil leaks and buried tanks etc.

Broad area of expertise:

Methodology adopted in Geophysics division for sub-surface exploration:

Non-invasive geophysical techniques

Seismic refraction
Multichannel Analysis of Surface Waves (MASW)
Sub-bottom profiling system
Electrical Resistivity Imaging (ERI)
Ground Penetrating Radar (GPR)

Invasive geophysical technique

Cross-hole seismic test and seismic tomography

Significant Contributions:

Estimation of average shear wave velocity (vs30) at Kondhane Dam Site, Maharashtra for M/S CIDCO-Mumbai.
Estimation of average shear wave velocity (vs30) at Kathakal Irrigation Project Site, Assam
Estimation of average shear wave velocity (vs30) for Sarasvati Heritage Development Project, Haryana
Estimation of average shear wave velocity (vs30) at Ghatti Basavanna Dam Site, Karnataka
Cross-hole seismic tomography studies at Bhandardara Dam, Maharashtra
Delineation of distressed zones/voids by seismic tomography in right nof blocks (b51-b60) of Sardar Sarovar Dam, Gujarat
Geophysical investigations to map the existence of concealed cavities if any, at Sripada Yellampally dam, Peddapally district, Telangana
Sub bottom seismic profiling studies at Nhava Yard For M/S Mazagon Dock Shipbuilders Ltd, Mumbai, Maharashtra
Geophysical investigations at Megholi M. I. tank , Maharashtra

$Seismic equipment for MASW and refraction studies$

1.24 channel OYO seismograph
2.Bore hole hammer
3.Triaxial Bore hole geophone
4.P-Wave & S-wave Source
5.Impluse generator
6.Bore hole Hydro phone Chain
7.Tow fish
8.ARES Control Unit (48 Channel)
9.IRIS Under Water electric resistivity Imaging Unit (72 Channel)
10.Ground Penetrating Radar Unit

Testing, Calibration and Certification Facility (TCCF) Centre TCCF Lab

Various facilities at lab—

Groundwater level measuring sensor installed at observation well.
Electronic water level sounders.
100 m Steel tape for measuring ground water levels.
4 Hand held Field Callibrator with master pressure sensor
Lab Callibrator

Serial No.	Title of the Projects	Client/Sponsoring Agency
1	Cross-hole seismic tomography studies at Bhandardara Dam, Dist. Ahmednagar, Maharashtra.	Ahmednagar Irrigation Division, Ahmednagar, Mahaashtra
2	Geophysical investigations of Damanganga ( Ekdare)- Godavari (DEG) link project, Nashik, Maharashtra.	Investigation Circle , NWDA, Valsad , Maharashtra
3	Geophysical investigations for R. H.S. NOF Block no. 51-60 of Sardar Sarovar dam, Gujarat.	Superintending Engineer ,N.P.- Design (Dam & Power House) Circle, Vadodara, Gujarat
4	Estimation of shear wave velocity (Vs30) at Gatti Basavanna dam site, Karnataka	KNNL, GRBCC, Division no. 3, ,Karnataka
5	Estimation of Shear wave velocity (Vs30) for Saraswati Heritage Development Project, Haryana.	Saraswati Heritage Division-I, Jagadhri, Haryana
6	Estimation of Shear wave velocity (Vs30) Katakhal irrigation project, Assam	NEID-I ,Central Water Commission, Shillong
7	Estimation of shear wave velocity (Vs 30) at Kondhane Dam Site, Maharashtra for M/S CIDCO-Mumbai.	CIDCO Ltd, Mumbai, Maharashtra
8	Geophysical investigations to map the existence of concealed cavities if any at Sripada Yellampally Dam Peddapally Dist. Telangana	I&CADD Sripada Yellampally Project circle,Talangana
9	Cross-hole Seismic Tomography studies at Warna Dam, Maharashtra.	Kolhapur Irrigation Division (North), Kolhapur
10	Sub-bottom seismic profiling survey for creation of Greenfield Shipyard at MDL's Nhava Yard for Mazagaon Dock Shipbuilders Ltd. at Mumbai, Maharashtra	Mazagaon Dock Shipbuilders Ltd. at Mumbai, Maharashtra
11	Geophysical Investigations at Megholi M.I.Tank, Maharashtra	Kolhapur Irrigation Division (South), Kolhapur

M. Majumder, Swati Mukherjee, B. Umrikar, Ch.Subba Rao, R. Baskey, C Krishnaiah, Vertical electrical soundings to decipher aquifer conditions in midlands and plains of Bhima Basin “IWRA (India) Journal(2021),Vol 10(2) pp 18-25
V. Chandrashekhar, G. Dhanunajaya Naidu, Vivek Bagade, Prashnat Janrao, Amar Deep, B. Suresh Kumar , Rizwan Ali Identification of weak zones by cross hole seismic tomography in Warna, Masonary gravity dam, Maharashtra (A case study) .International conference on dam safety (ICDS)- 2023, 14-15th Sept 2023 at Jaipur, Rajasthan
S. Nagakumar, B. Prem Raju,G. Dhanunajay Naidu and P. Trinadha Rao Delineation of weathered/fracture zones in hard rock terrain using Electrical Resistivity Imaging (ERI) geophysical technique National conference on Environmental challenges: Role of Science and technology, during 18th- 19th Dec 2023 at Berhampur University, Odisha
B. Prem Raju, S. Nagakumar, G. Dhanunajay Naidu and P. Trinadha Rao Estimation of shear wave velocity of subsurface strata for delineation of fracture/weathered zones in hard rock National conference on Environmental challenges: Role of Science and technology, during 18th- 19th Dec 2023 at Berhampur University, Odisha

Serial No.	Name	Designation	Email Id	Phone Number
1	Shri B. Suresh Kumar	Scientist ‘D’ & HoD	badugusureh1972[at]cwprs[dot]gov[dot]in	020-24103551
2	Dr. G.D. Naidu	Scientist 'D'	naidu[dot]dg[at]cwprs[dot]gov[dot]in	020-24103257
3	Dr. Mandira Majumder	Scientist 'D'	mandira[at]cwprs[dot]gov[dot]in	020-24103363
4	Dr. Naidu Suneetha	Scientist ‘B’	naidu[dot]suneetha[at]cwprs[dot]gov[dot]in	020-24103369
5	Dr. B Karunakar Goud	Scientist ‘B’	karunakar[dot]goud[at]cwprs[dot]gov[dot]in	020-24103484
6	Smt. Namita Karki	Scientist ‘B’	karki[dot]namita[at]cwprs[dot]gov[dot]in	020-24103519
7	Shri Vivek B. Bagade	Assistant Research Officer	vivek[dot]bagade[at]cwprs[dot]gov[dot]in	020-24103215
8	Shri Santhosh Kumar Ranga	Assistant Research Officer	ranga[dot]santhosh[at]cwprs[dot]gov[dot]in	020-24103215
9	Shri Ramesh Baskey	Assistant Research Officer	ramesh[dot]baskey[at]cwprs[dot]gov[dot]in	020-24103481
10	Shri Prashant S. Janrao	Research Assistant	ps[dot]janrao[at]cwprs[dot]gov[dot]in	020-24103481
11	Shri Dheerendra Mani Tripathi	Research Assistant	dm[dot]tripathi[at]cwprs[dot]gov[dot]in	020-24103484
12	Shri Shivang Baghel	Research Assistant	shivang[dot]baghel[at]cwprs[dot]gov[dot]in	020-24103481
13	Shri S.N. Khirid	Laboratory Assistant Gr-I	khirid[dot]shankar[at]cwprs[dot]gov[dot]in	020-24103481
14	Shri Milind Motilal Maher	Laboratory Assistant Gr-II	milind[dot]maher[at]cwprs[dot]gov[dot]in	020-24103484
15	Shri Shiv Chandar Mandal	Multi Tasking Staff	shiv[dot]mandal[at]cwprs[dot]gov[dot]in	020-24103481