DEWATERING EFFECTS ON STRUCTURES ADJACENT TO CENTRAL ARTERY/TUNNEL PROJECT

Groundwater control during cut-and-cover tunnel construction of a half-mile segment of the Central Artery I-93 Northbound Tunnel requiring excavation to more than 100 feet below ground surface resulted in temporary depression of the groundwater and settlements to adjacent structures, including two high-rise buildings. The reduction in groundwater levels outside the excavation limits generally had a greater effect on adjacent structures than any other construction activity, with the amount of settlement varying with distance from excavation, subsurface conditions and foundation type. Generally uniform settlements were recorded within the footprint of the high-rise building discussed herein, with maximum settlements reaching approximately inch. This paper describes the dewatering along a portion of the Central Artery Corridor, measures used to minimize groundwater lowering outside the excavation limits, and effect on three adjacent structures. Comparisons between predicting versus measured performance are presented, including time history plots of piezometric levels and settlement at each building.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407444
• Corporate Authors:

  American Society of Civil Engineers

  Geo-Institute
  Reston, VA  United States  20191-4400
• Authors:
  • Papadopoulos, A
  • Dusseault, S
  • Bobrow, D
• Conference:
  • Geotechnical Engineering for Transportation Projects, Geo-Trans 2004
  • Location: Los Angeles, California
  • Date: 2004-7-27 to 2004-7-31
• Publication Date: 2004

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 10 p.
• Serial:
  • ASCE Geotechnical Special Publication
  • Issue Number: 126
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Arteries; Dewatering; Excavation; Foundation engineering; Ground settlement; Groundwater; Piezometers; Risk assessment; Structures; Subsurface drainage; Tunnels
• Uncontrolled Terms: Depressions (Indentations)
• Subject Areas: Bridges and other structures; Construction; Design; Highways; Hydraulics and Hydrology; Public Transportation; Safety and Human Factors; I25: Design of Tunnels;

Filing Info

• Accession Number: 00988615
• Record Type: Publication
• ISBN: 0784407444
• Report/Paper Numbers: Volume II
• Files: TRIS
• Created Date: Apr 6 2005 12:00AM