Alternative Title

Paper No. 5.11

Location

St. Louis, Missouri

Date

11 Mar 1998, 10:30 am - 12:30 pm

Abstract

A successful case study of braced deep excavation in Hangzhou, 1994, is presented in this paper. A stiff braced retaining structure was adopted through theoretical analysis, the bottom soil of the pit was strengthened by cement mixed grouting to increase the stability of the retaining structure. The excavation was completed smoothly in short period of time, displacements surrounded the pit and stresses in braces were measured during the whole procedure of excavation and the measured results agreed well with the prediction by FEM. Some conclusions drawn from this successful case may be instructional to other similar engineerings.

Department(s)

Civil, Architectural and Environmental Engineering

Meeting Name

4th Conference of the International Conference on Case Histories in Geotechnical Engineering

Publisher

University of Missouri--Rolla

Document Version

Final Version

Rights

© 1998 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Behavior of Braced Deep Excavation in Soft Soils

St. Louis, Missouri

A successful case study of braced deep excavation in Hangzhou, 1994, is presented in this paper. A stiff braced retaining structure was adopted through theoretical analysis, the bottom soil of the pit was strengthened by cement mixed grouting to increase the stability of the retaining structure. The excavation was completed smoothly in short period of time, displacements surrounded the pit and stresses in braces were measured during the whole procedure of excavation and the measured results agreed well with the prediction by FEM. Some conclusions drawn from this successful case may be instructional to other similar engineerings.