|
Indian
Institute of Technology, Kharagpur Department
of Civil
Engineering
Aniruddha Sengupta, Ph.D., P.E. |
|
|
|
Professional
Experience (2000 to date): Study of Differential
Settlement of Hooghly Met Coke Plant Facility at Haldia (SPFH) Client: TATA Steel Co. Ltd,
Jamshedpur Principal Consultant. (INR
7,08,000) (2018-2019). Review of the Design &
Performances of 70m High MSE Wall and Slopes at Pakyong Airport, Sikkim
(RDST) Client: Airport Authority of India
(GM, Pakyong Airport) Principal Consultant. (INR
75,60,000) (2016-2018). Impact Assessment on Heritage
Structures due to Proposed Construction Route of E-W Metro at Kolkata
(HSPW) Client: Kolkata Metro Rail
Corporation Ltd., Kolkata Co-consultant.Determination of
settlement and motions at the heritage buildings due to the construction
of E-W tunnels and station. (INR 75,57,000) (2016-2018). Cyclic Triaxial Tests for Kolkata
Metro Rail Corporation Ltd (SOTK) Client: Transtonnelstroy-Afcons
JV, Mumbai Principal Consultant. Performed
cyclic triaxial tests on the soils from E-W Metro near BBD Bag, Kolkata
(INR 114500) (2016). Soil Stabilization with Geocrete (SOSG) Client: KABA Infratech Pvt. Ltd., New Delhi Co-consultant. Laboratory tests on soils with different
percentages of Geocrete. (INR 150000) (2014-2015). Strengthening of Weak Formation and Rehabilitation Work
in Malda Division of Eastern Railway (WFAW) Client: Eastern Railway, Malda Division Principal Consultant. Performed drilling, field &
laboratory testing and redesigning of the railway embankments. (8.65
Lakhs) (2012-2013). Liquefaction Study of the Site for Steel Complex at
Gokulpur (SSCG) Client: Rashmi Metaliks, Ltd, Kolkata Principal Consultant. Performed seismic hazard and
ground liquefaction study of the project site for the new steel plant.
(86,034) (2012). Stability & Strength Test for Q-0, Dunguri Lime
Stone Quarry (SFDL) Client: ACC Ltd, Bargarh Cement Works, Bargarh, Orissa Co-PI, Performed Strength tests, Stability analysis of
the slope. (PI: Prof. K. Pathak, Mining Dept) (165,000) (2011-2012). Inspection & Testing of 100-m Transmission Tower at
Kohima (TMTA) Client: All India Radio & Doordarshan, Kolkata Principal Consultant. Performed field inspection and
field testing of the newly erected foundation of the tower. Checked
bearing capacity, settlement and stability of the foundation. (3,00,000)
(2011-2012). Evaluation & modification of tank foundations at
JSL (EMTF) Client: BOC India Ltd, Kolkata Principal Consultant. Design & analysis of
retaining wall and tank foundations (3.8 Lakhs) (2011-2012). Assessment of undrained behavior of Padma Bridge Soils
-1 (BPBS) Client: DCL-FCL, Dhaka, Bangladesh Co-consultant. Testing of soils from Padma Bridge (3.47
lakhs) (2010). Assessment of undrained behavior of Padma Bridge Soils
-2 (PDBR) Client: M/s M. Ahmed & Associates, Ltd.,, Dhaka,
Bangladesh Co-consultant. Testing of soils from Padma Bridge (1.49
lakhs) (2010). Assessment of Liquefaction Potential at OSCOM Site,
Matikhal (OSCO). Client: Indian Rare Earths Ltd, Orissa Co-consultant (7 lakhs) (2009-2010). Characterisation of Sinter Metallics and Muck Dump
Material Client: Tata Steel Ltd, Jamshedpur Principal Consultant. Site visit. Determination of
characterization of sinter and muck dump by laboratory tests.(3.86 lakhs)
(2009). Assessment of Tunnel Distress at HMPCL Client: Hoogly Met Coke & Power Co., Ltd, Tata
Steel, Kolkata Consultant. Performed site inspections. Reviewed data.
Reviewed analyses of the failure (9.55 lakhs) (2009). Construction of Arterial Road Behind Berth No. 2 of
Haldia Dock. Client: Kolkata Port Trust, Haldia Dock Complex. Co-consultant. (Rs 4.49 lakhs) (2009). Soil Test for BLLRO Office Building at Nayanjuli,
Kharagpur. Client: Govt. of West Bengal. Principal Consultant. Performed Laboratory Tests to
Determine Suitability of Foundation Soil & its Bearing Capacity
(2009). Review of Bund Stability of the existing Red Mud and Ash
Ponds at Vedanta Aluminium Plant, Rayagoda, Orissa. Client: Pollution Control Board, Bhubaneswar, Orissa. Principal Consultant. Visited the plant. Reviewed field
data and measurements. Produced status report with recommendations
(2008). Testing and Evaluation of 100 m Transmission Tower at
AIR Kohima. Client: Webel Mediatronics Ltd. Principal consultant. Visited the site and supervised
field testing. Prepared status report and recommendations. Reviewed post
construction drawings. (Rs. 4.07 lakhs) (2007-2008). Client: District Magistrate, Darjeeling Consultant. Performed survey of pipelines. Reviewed
existing water supply and storage schemes. Proposed projected demands.
Visited proposed storage site at Tiger Hills (Rs. 4.82 Lakhs) (2007). Soil Test of Microwave Compound at Mohanpur, Midnapore
(DOPP) Client: BSNL, Tamluk Principal Consultant. Performed drilling and soil tests
(In-situ density, moisture content, unconsolidated undrained triaxial
tests for the soil (2006). Soil investigation and geotechnical design for
foundation of the proposed bridge across the old Kansabati near Daspur
(GDFB) Client: Panchayat Samity, Daspur-I, Midnapore As co-consultant, supervised drilling, sampling and
laboratory testing of samples. Reviewed design of the bridge foundation
(2006). Soil Tests for the M/s ICICI Bank (PCBR) Client: M/S ICICI Winfra, Kolkata Performed drilling, sampling and soil tests (2006). Soil Investigation for the Kasturba Gandhi Balika
Vidyapeeth (NTBV) Client: Headmistress, Nayagram Thana Balika Vidyapeeth,
Midnapore Performed drilling, sampling, soil tests, bearing
capacity determination and foundation design for the proposed school
building (2005). Investigation of possible causes for undulations in
laning of NH-6 (IPCS) Client: National Highway Authority of India Reviewed existing test data (2005). Reviewed
remedial measures as co-consultant (2006). Client: Uranium Corporation of India Ltd, Jharkhand. Performed stability check of the Turamdih Tailings Dam
Stages I & II for the normal and seismic loading conditions
(2004-2005). Client: Indian Aluminium Company, Ltd, Ranchi. Performed stability check of the existing Tailings Dam
for the normal, flood and seismic loading conditions (2004-2005). Design
of Pagladiya Embankment Dam in India Client: CWC & Brahmaputra
Board, Mr. D.V. Theraja (Chief Engineer) Reviewed existing design of Pagladiya
Dam in Assam and performed seismic safety evaluation of the dam based on
field & laboratory test data. The dam section was revised and a
cutoff wall was added to mitigate foundation liquefaction (2002). Client: South Eastern Railway,
Jajpur Road Division, Mr. S.C. Gupta Performed design and analyses of 45m
high railway embankments between Keonjhar and Jajpur Road, Consultancy
Project no. IIT/SRIC/CE/2000-2001/71, (2000-2001). Professional
Experience (1989 – 1999): Transfer
of Technology Program for CEA/CWC/GSI (Govt. of India) Client:
Central Electricity Authority of India and World Bank Participated
as an instructor in the transfer of technology program for CEA/CWC/GSI
(Govt. of India) hydropower engineers under the World Bank loan-training
in Civil/Geotech Design Module in USA and India (1996 & 1998). Locks
and Dam No. 2, Monongahela River, Pennsylvania, U.S.A. Client:
U.S. Army Corps of Engineers, Pittsburgh District, USA. Performed
design of alternately reinforced overlapping caisson wall and rock
anchors. Reviewed geotechnical information (soil parameters, boring logs,
lateral loads) and developed design criteria. Investigated stability of
the left bank during the construction of the new lock. Performed
non-linear finite element analyses of the proposed tieback wall, finite
element seepage analysis to estimate seepage quantities and uplifts
during excavation (1997). Seoul-Incheon
Navigation Project, Korea Client:
Korea Water Resources Corporation, Seoul, Korea. Performed
design and analysis of the pile foundation for the navigation locks.
Investigated stability of the locks. Performed design of rock bolts to
stabilize rock wedges. Performed seepage analysis to estimate flow into excavations
and to estimate flow through the dikes. Perfomed design of sheetpile
cutoff walls under the west lock. Locks
and Dam No. 4, Monongahela River, Pennsylvania, U.S.A. Client:
U.S. Army Corps of Engineers, Pittsburgh District, USA. Evaluated
geotechnical parameters from test data. Developed geotechnical design
criteria. Evaluated sliding and rotational stability of the existing
middle wall. Investigated various stability measures for the existing
wall. Performed design of the tieback caisson wall, rock bolts, anchors,
etc. Prepared drawings. Performed cost estimate of the design
alternatives (1996-1997). Redwood
Sanitary Landfill Project, California, USA. Client:
Redwood Landfill, Inc., Novato, California Responsible
for the lift design for the landfill. Performed coupled (mechanical
and hydraulic) finite element analyses of the proposed landfill.
Studied adverse effect of the refuse on the foundation Bay Mud (1996). Hamilton
Landfill No. 26, Novato, California Client:
U.S. Army Corps of Engineers, Omaha District, USA. Evaluated
seismic stability and potential deformations of the cap to a solid waste
landfill proposed for conversion to residential development. Nevada
Nuclear Waste Storage Investigation (Yucca Mountain) Project, Nevada,
USA. Client:
Science Applications Intl. Corps and U.S. Govt, Dept. of Defense Developed
methodology to analyze the influence of tectonic activity on the hydrogeologic
characteristics of the proposed site for a geologic repository for
high-level nuclear waste (1989-1990). Rehabilitation
of Huffman Dam, Germantown Dam, Lockington Dam, Englewood Dam and
Taylorsville Dam of Miami Conservancy District, Ohio Client:
Miami Conservancy District, Ohio Lead
Engineer/Project Engineer. Performed foundation characterization and
finite element seepage analyses of the five dams under various flood
conditions to check the stability of the dams. Reviewed the
capacity of the existing downstream relief wells. Investigated
different seepage control measures to stabilize the dams under OPF (1992-
1999). Construccion Tercera Etapa
Embalse Caren, Chile Client: Division el Teniente,
CODELCO, Chile Participated
in the review of the capacity of the existing blanket drain and design of
the proposed finger drains. Estimated the quantity of flow through
the downstream blanket drain during final stage of filling using a finite
element seepage program, ELF (1998). Design
of Keenleyside 150MW Powerplant Project, British Columbia, Canada Client:
Columbia Basin Power Company, Vancouver, British Columbia, Canada Estimated
the quantity of seepage into the power channel and reviewed its stability
during construction and operation. Evaluated different seepage
control schemes for the channel during its construction (1998). Maranon-Huanuco
Hydroelectric Project, Lima, Peru Client:
Illinova Generating Company, Lima, Peru Reviewed
the borehole data and site characterization of the project site.
Investigated uplift pressures, seepage gradients and seepage quantity
under the proposed spillway (1998). Pisgah
Dam, Fergus Falls, Minnesota, USA Client:
Otter Tail Power Company, USA Performed
finite element seepage analyses. Existing piezometer readings were used
to calibrate the FEM model. The uplift pressures under the
powerhouse were estimated based on the results of the analyses (1996). Upper
Bhote Koshi Hydroelectric Project, Nepal Client:
Bhote Koshi Power Company, Ltd. Reviewed
the design of the cutoff wall to prevent underseepage through the
foundation. Performed finite element seepage analyses to determine
the cutoff wall design criteria and to estimate the quantity of seepage
through the dam foundation (1997). Rehabilitation
of Devil’s Gate Dam, California Client;
County of Los Angeles, Department of public works Performed
finite element seepage analyses to estimate seepage and uplift pressures
under the concrete dam and spillway chute for various reservoir
elevations (1994). Rocky
Mountain pumped-storage project, Georgia, USA. Client:
Oglethrope Power Corporation, GA. Performed
coupled hydro-mechanical finite element transient seepage analysis of the
upper reservoir. Studied piezometric response to emptying and filling
reservoir cycles in the upper dam (1989-1995). Dwaar
Kill Reservoir, Orange County, NY Client:
Orange County Water Department, NewYork Responsible
for the finite element seepage analyses (1990). Rehabilitation
of Biron Dam, Wisconsin Client:
Consolidated Papers, Inc., Wisconsin Rapids, Wisconsin Performed
field supervision during drilling of boreholes and installation of
piezometers through the concrete dam and spillway. Investigated the
deterioration of the concrete and possibility of voids at the interface
of the concrete dam and foundation rock at selected boreholes with a
borehole camera (1997-1998). TARP-
North Branch, Illinois Client:
Metropolitan Water Reclamation District of Greater Chicago (MWRDGC),
Illinois Performed
field supervision during contact grouting and installation of rock
anchors at the 9-meter diameter main tunnel (1997-1998). Northeast
Lake Tunnel Bulkhead Construction Project, Chicago Client:
City of Chicago, Department of Water, Chicago Resident
Engineer during initial stage of the construction. Supervised the
bulkhead construction under the existing intake structure within Lake
Michigan (1997-1998). Tellico
Dam, Tennessee Client:
Tennessee Valley Authority, Tennessee, USA Supervised
the piezo-cone penetration testing program (1994-1995). Belleville
Hydro Electric Project, W. Virginia, USA Client:
American Municipal Power & U.S. Army Corps. of Engineers Supervised
the subsurface drilling and testing program. Supervised
installation of piezometers (1993-1994). Watts
Bar Dam, Tennessee, USA Client:
Tennessee Valley Authority, Tennessee, USA Supervised
the piezo-cone penetration testing program (1993). Guntersville
Dam (TVA), Tennessee Client:
Tennessee Valley Authority, Tennessee, USA Supervised
piezo-cone penetration testing program (1992). Son
La Hydropower Project, Vietnam Client:
Ministry of Planning and Investment, Department of Project Evaluation,
Hanoi, Vietnam. Performed
regional seismicity study of the project areas and estimated seismic
parameters for the design (1999). Prefeasibility
Study of Rio Torola Project, El Salvador Client: Comision Ejecutiva
Hidroelectrica, Del Rio Lempa (CEL), El Salvador, CA Studied
the regional seismicity of the project area and estimated probabilistic
seismic risk associated with different structures in the project area
(1998). Seismic
Hazard Evaluation of Pakistan EHV Transmission Line, Pakistan Client:
National Grid Company, U.K. Performed
study to establish the level of seismic hazard along proposed 500 kV
transmission line route in Pakistan. The corridor extends from Lahore to
Jam Shoro along the Indus river (1995). Seismic
Hazard Analysis for (TVA) Kentucky Locks and Dam Project, Tennessee Client:
Tennessee Valley Authority, Tennessee, USA. Established
Maximum Credible Earthquake for the project. Developed seismic hazard
curve, site response spectra and acceleration time histories of motion
for Maximum Design Earthquake and Operating Basis Earthquake. Caruachi
Hydroelectric Project, Venezuela Client:
CVG Electrificacion del Caroni, C.A. (EDELCA) Responsible
for the selection of the design response spectra and ground motion for
the dynamic analysis of the embankment dam (1991) Proyecto Del Embalse Maya
Litoral Central, Venezuela Client: Republica de
Venezuela, Ministerio del Ambiente y del los Recursos Naturales,
Venezuela Participated
in the design of the 70 meters high RCC dam. Responsible for the
review of the seismicity of the region, determination of design ground
motion and dynamic analysis of the dam. The dynamic stresses from
the analyses were used in the design of the upstream intake structure and
in the design of the bedding mix for the RCC dam (1998). Tellico
Dam, Tennessee Client:
Tennessee Valley Authority, Tennessee, USA Lead
analyst for seismic safety evaluation program. As a part of
the program, performed dynamic analysis and liquefaction study
(1994-1995). Guntersville
Dam, Tennessee Client:
Tennessee Valley Authority, Tennessee, USA Lead
analyst for seismic evaluation program. The project includes detailed
site investigation, seismic studies, liquefaction studies, and finite
element static and dynamic analysis (1992). Blue
Ridge Dam, Tennessee Client:
Tennessee Valley Authority, Tennessee, USA Performed
numerical modeling of the construction, impoundment and operation phases
of the dam. Performed dynamic finite element analysis of the dam using
advanced material model. Responsible for the liquefaction and deformation
studies of the dam (1990-1991). Bradbury
Dam (Cachuma Dam), Santa Barbara, CA. Client:
U.S. Bureau of Reclamation, Denver, Colorado, USA. Responsible
for the dynamic finite element analyses of the spillway retaining
walls. The initial numerical results were compared with the
centrifuge test results (performed by Univ. of Colorado at Boulder) as a
part of the verification of the numerical code used in the study (1994). Tungabhadra
Dam, Upper Indravati Hydroelectric Project, Orissa, India Client:
Government of Orissa, Department of Energy & World Bank Performed
design and finite element analysis of penstock Wye branches. Evaluated
(at Chicago Office) reinforcement requirements of the penstock Wye
branches (1995). Caruachi
Hydroelectric Project, Venezuela Client:
CVG Electrificacion del Caroni, C.A. (EDELCA) Performed
dynamic finite element analysis of the powerhouse to estimate lateral
deformation of the powerhouse and to verify the reinforcements provided
in the design (1998). Boyabat
Dam and Hydroelectric Power Plant – Phase I, Turkey Client:
Boyabat Elektrik Uretim ve Ticaret Ltd. Lead
Geotechnical Engineers. Evaluated geotechnical and seismological design
parameters for the proposed 200-m high concrete gravity dam. Reviewed and
evaluated existing design. Updated and revised the design. Prepared
designs, specifications and drawings (1999). Fourche
Maline Creek Dam, Wilburton, Oklahoma Client:
KN Energy, Inc. Project
Engineer. Developed field investigation and testing program. Developed
geotechnical parameters. Evaluated existing 20 feet high mortared masonry
dam and a number of alternatives (1999). Design
for Sir Adam Beck Diversion Project, Canada Client:
Ontario Hydro, Canada Reviewed
the design of the cellular cofferdam, which will be used as a platform
for a 905-ton crane during construction of the diversion tunnel (1998). Montgomery
Point Locks and Dam, Arkansas, USA. Client:
U.S. Army Corps of Engineers, Little Rock District, USA Participated
in the design of cellular cofferdam. Developed excavation plan and
instrumentation program to monitor the cofferdams (1995-1996). Safe
Harbor Skimmer Wall Design, Pennsylvania, USA. Client:
Safe Harbor Water Power Corp. Performed
design of the foundation for the piers atop a levee. The piers will
be supported by three end bearing steel pipe piles filled with
concrete. The piers will be subjected to large lateral loads due to
impact of ice, waves and lateral loads during earthquake (1997). Macal/Mollegon
Hydroelectric Project, Belize Client:
Dominion Energy, Inc. Participated
in the design of permanent repairs of the cofferdams and powerhouse.
Responsible for preparation of drawings and estimates for the alternative
schemes (1995). Torrence
Avenue Tunnel and O’Brien Pump Station Project, Chicago Client:
Metropolitan Water Reclamation District of Greater Chicago (MWRDGC) Performed
foundation design of a building and appraisal of an existing marshland
near 134th street and Torrence Avenue. Performed design of anchored
sheetpile wall and estimation of foundation settlement of the flushing
water intake structure T36-2 (1996). Belleville
Hydro Electric Project, W. Virginia, USA Client:
American Municipal Power Responsible
for the design of cellular cofferdams used for the diversion of the Ohio
river around the power house (1993-1994). Baldhill
Dam Rehabilitation Project, ND Client:
US Army Corps of Engineers, St. Paul District, North Dakota, USA Responsible
for the design of the sheetpile walls at the crest of the dam. Designed
caissons as a stabilizing measure for the right abutment of the spillway
(1990-1995). Boundary
Dam, Seattle, Washington, USA Client:
Seattle City Light, WA. Evaluated
the failure potential of left abutment rock wedges and designed rock
anchors to stabilize the rock wedges (1991). Dwaar
Kill Reservoir, NewYork Client:
Orange County Water Authority, NY. Responsible
for the design of anchors (1990). Design
of Transmission Towers at Silver Springs, NY. Client:
Indeck Energy Services Inc., New York Responsible
for the evaluation of subsurface conditions under the transmission towers
and determination of design parameters and bearing capacity of the
foundation (1989). Design
of Ritschard Dam (Muddy Creek), Colorado Client:
Colorado River Water Conservancy District, USA. Involved
in all phases of the design of the dam. Responsible for the preparation
of specifications & bid documents, preparation of drawings, material
allocation studies, material modeling, seepage and stability analyses of
the dam and the foundation (1991-1993). Design
of Rocky Mountain pumped-storage project, Georgia, USA. Client:
Oglethrope Power Corporation, GA. Responsible
for the stability, bearing capacity and settlement analyses of the lower
dams and spillway. Responsible for the design of recreation facilities in
the Aux. Pool II area and geotechnical instrumentation of the Main Dam.
Responsible for the preparation of the specifications and contract
drawings for the geotechnical instrumentation. Responsible for the
preparation of the turnover packages for the geotechnical instruments
(1989-1995). Northeast
Lake Tunnel Bulkhead Construction Project, Chicago Client:
City of Chicago, Department of Water, Chicago Evaluated
stability of the lake front structures during the plugging of the N.E.
brick-lined tunnel. Responsible for the design of the anchored
sheetpile wall and H-piles to stabilize the lake front structures.
Reviewed construction drawings (1997-1998). Chicago
Shoreline Reconstruction Project, Chicago Client:
Department of Environment, City of Chicago, Chicago Performed
site characterization and geotechnical design of new lake front revetment
at the Belmont Harbor Peninsula. Reviewed the site characterization
and design of the new lake front revetment, jetties and breakwater at
31st street. Reviewed the U.S. Army Corps of Engineer=s design for
the Reach 4 segment of the lake front (1997-1998). Chinatown
Park Riverfront Rehabilitation Project, Chicago Client:
Chicago Park District, City of Chicago, Chicago Reviewed
and checked the site characterization and design of the new riverfront
revetment (1998). Escanaba
Dam No. 3, West Gladstone, Michigan, USA Client:
Mead Paper Company & Timberland Engineering, MI. Lead
Geotechnical Engineer. Performed Federal Energy Regulatory Agency 5-year
inspection. The project includes 150-ft long, 18-ft high concrete gravity
gated spillway with radial gates, two units of powerhouse, 1400-ft long
left and right embankment dams. The scope of services included
field investigation and testing, stability analyses, evaluation of
liquefaction potential (1999). Dillon
Multipurpose Dam, Colorado, USA Client:
Denver Water, Denver, Colorado Lead
Civil Engineer. Project includes 310-ft high zoned earthen embankment dam.
Performed reevaluation of project seismicity based on recent data on
faults. Evaluated seismic stability of the dam if the reservoir is raised
by 5 feet (1999). Baldhill
Dam Rehabilitation Project, ND Client:
US Army Corps of Engineers, St. Paul District, North Dakota, USA Involved
in the evaluation of the existing dam and geotechnical design of the
proposed modifications of the dam. Responsible for the material modeling,
bearing capacity, settlement analysis, stability and seepage analysis of
the dam (1990-1995). Rehabilitation
of Fellows Lake Dam, MO., USA Client:
City Utilities of Springfield, Missouri, USA Investigated
stability of the existing sections and proposed raised sections of the
dam. Designed relief wells as a part of seepage control measures
(1989-1990). Dwaar
Kill Reservoir, NewYork Client:
Orange County Water Authority, NY. Responsible
for the evaluation of field and laboratory test data, design parameters,
stability analyses (1990). Itezhitezhi
Dam Project, Zambia Client:
ZESCO, Zambia Electricity Supply Corporation Ltd. Reviewed
the existing piezometer record to estimate increase in aquifer pressure
in the dam foundation due to proposed raising of the dam crest. Performed
feasibility study for raising the dam by 10 meters above the present
crest level. The study recommended adding downstream berm to meet the
stability criteria (1997). Neutrinos
at Main Injector Project (NuMI), Batavia, Illinois Client:
Fermi National Accelerator Laboratory Senior
Geotechnical Engineer. Performed study to estimate typical range of
blasting vibrations at various existing structures adjacent to NuMI
tunnel alignment (1999). New
Croton Aqueduct, New York Client:
City of New York, Department of Environmental Protection, New York Reviewed
the hydrogeologic condition around the tunnel and possibility of rise in
ground water and its effect on the existing structures during
pressurization |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
