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Additional Deep Excavation Case Studies

The following table provides basic information on additional case studied for deep excavations. The majority of the deep excavations are supported by slurry walls. Wall Types: RCDW: Reinforced Concrete Diaphragm Wall, SPTC: Soldier Pile & Tremie Wall, SPW: Sheet Pile Wall, SP: Soldier Pile and Lagging, TPW: Tangent Pile Wall, SMW: Soil Mix Wall

Project Name Year RCDW Exc. Depth (feet) Support System General Soil Conditions
State Transportation (Boston, MA) 1982 RCDW 27 2 Lev. TB, R Fill, Org., Clay, Glacial Till
One Memorial Drive (Boston, MA) 1985 RCDW 30 2 Lev. TB Fill, Org., Clay, Glacial Till
500 Boylston (Boston, MA) 1987 RCDW 42 4 Lev. TB Fill, Org., Clay, Glacial Till
Amoco Standard Oil (Chicago, IL) 1971 RCDW 23 - 44 1 Lev. TB Fill, Org., Clay, Glacial Till
Water Tower (Chicago, IL) 1973 RCDW/ SPTC 44 1 Lev. TB and 1 Lev. R Fill, Org., Clay, Glacial Till
Prudential 2 (Chicago, IL) 1986 RCDW/ SPTC 25 1 Lev. TB, and 1 Lev. R Fill, Org., Clay, Glacial Till
AT & T Corp. Center (Chicago, IL) 1987 RCDW 27 3 Lev. Rakers Fill, Org., Clay, Glacial Till
Northwestern University (Chicago, IL) 1993 RCDW 23 1 Lev. Tiebacks Fill, Org., Clay, Glacial Till
Museum of Science and Industry (Chicago, IL) 1996 RCDW 34 3 Lev. Tiebacks Fill and Stiffer Clays
60 State Street Bldg. (Boston, MA) 1975 RCDW 32 3 Lev. Tiebacks Fill, Glacio-Marine
Dana Farber Tower (Boston, MA) 1995 RCDW 88 6 Lev. Rakers Fill, Glacio-Marine, Bedrock
World Bank Bldg. (Washington, DC) 1991 RCDW 60 5-Lev. Tiebacks Mixed Sands, Silts & Clays, Rock
Washington Conv. Center (Washington, DC) 2000 RCDW 30 1-Lev. TB, and 1 Lev. R Mixed Sands, Silts & Clays
75 State Street Building (Boston, MA) 1983 RCDW 65 6-Lev. Top/Down Fill, Org., Clay, Till, Bedrock
Rowes Wharf (Boston MA) 1984 RCDW 55 5-Lev. Top/Down Fill, Glacio-Marine, Bedrock
125 Summet Street Bldg. (Boston, MA) 1990 RCDW 60 6-Lev. Top/Down Fill, Org., Clay, Till, Bedrock
Post Office Square Garage (Boston, MA) 1989 RCDW 75 7-Lev. Top/Down Fill, Org., Clay, Till, Bedrock
Beth Israel Hospital (Boston, MA) 1994 RCDW 55 7-Lev. Top/Down Fill, Org., Clay, Till, Bedrock
Millenium Place Bldg. (Boston, MA) 1998 RCDW 55 7-Lev. Top/Down Fill, Glacio-Marine, Bedrock
Guest Quarters Hotel (Chicago, IL) 1989 RCDW 35 3-Lev. Top/Dow Fill, Org., Clay, Glacial Till
M.B.T.A. South Cove (Boston, MA) 1973 RCDW 53 3-Lev. Cross Lot Braces Fill, Org., Clay, Till, Bedrock
Flagship Wharf Bldg. (Boston, MA) 1989 RCDW 47 3-Lev. Cross Lot Braces Fill, Org.,Glacial Outwash, Glacial Till,
Petworth Subway Station (Washington, DC) 1995 RCDW 60 6-Lev. Cross Lot Braces Fill, Sands
C.N.A Tower . Building (Chicago, IL 1970 RCDW 31 1 Lev. Rakers and Berms Fill, Org., Clay, Glacial Till
Sears Tower (Chicago, IL) 1971 RCDW 32 3 Lev. Rakers and Berms Fill, Org., Clay, Glacial Till
CB-1 (Yerba Buena) Tower (San Francisco, CA) 1999 RCDW 66 2 Lev. Struts, 1 Lev. Rak, (Alt Tieback) Fill, Org., Sand, Bay Mud.
Beso Mare (Patras, Greece) 2001   25 (7.5 m) 1 Lev. TB Interbedded Clays & Silts

*Most of these case studies have been compiled through graduate research at MIT. We would like to recognize and thank all companies and individuals for their contributions, making such an extensive compilation possible. These include (but not limited), GEI consultans, Haley & Aldrich, STS consultants, Mueser Rutledge Consulting Engineers, Shnabel Foundattions, and Clark Foundations.

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