Location

New York, New York

Session Start Date

4-13-2004

Session End Date

4-17-2004

Keywords and Phrases

high-rise building, karst engineering geology, geotechnical investigation, bore-hole, in-situ ultra-sound velocity, manualdug shaft foundation.

Abstract

This paper presents the geotechnical analyses of Guizhou Hotel, a thirty story (102-m high) building situated under complicated karst engineering geological conditions. Comprehensive geotechnical investigations prior to the design included the bore hole sampling, insitu ultra-sound velocity testing, groundwater well-pumping, and laboratory testing for rock strength. Based on the field and laboratory data, the bedrocks within the construction site (about 20,000 m2) was divided into four engineering geological units Ia, Ib, Ic, and Id, ranging from simple engineering geological condition (Ia) to very complicated geological condition (Id). Different subgrade bearing capacities were selected for the four units based on field and laboratory test results. Manually dug shaft foundations with different geometric shapes and sizes were considered for different units. Subgrade distress such as excess weathering and groundwater seepage were treated through construction measures. The field monitoring data during and after the construction indicated that very little overall and differential settlement had occurred for the structure and the geotechnical design for this high-rise building under the complicated karst geology had been a success.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Fifth Conference

Publisher

University of Missouri--Rolla

Publication Date

4-13-2004

Document Version

Final Version

Rights

© 2004 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Apr 13th, 12:00 AM Apr 17th, 12:00 AM

Geotechnical Analyses of Guizhou Hotel

New York, New York

This paper presents the geotechnical analyses of Guizhou Hotel, a thirty story (102-m high) building situated under complicated karst engineering geological conditions. Comprehensive geotechnical investigations prior to the design included the bore hole sampling, insitu ultra-sound velocity testing, groundwater well-pumping, and laboratory testing for rock strength. Based on the field and laboratory data, the bedrocks within the construction site (about 20,000 m2) was divided into four engineering geological units Ia, Ib, Ic, and Id, ranging from simple engineering geological condition (Ia) to very complicated geological condition (Id). Different subgrade bearing capacities were selected for the four units based on field and laboratory test results. Manually dug shaft foundations with different geometric shapes and sizes were considered for different units. Subgrade distress such as excess weathering and groundwater seepage were treated through construction measures. The field monitoring data during and after the construction indicated that very little overall and differential settlement had occurred for the structure and the geotechnical design for this high-rise building under the complicated karst geology had been a success.