Location

St. Louis, Missouri

Session Start Date

3-11-1991

Session End Date

3-15-1991

Abstract

Based on the model, field test and theory research, this paper puts forward the design method of ground vibration isolated by silo and pita barriers, the practical engineering calculation and the remained problems in this respect. It is pointed out that although the diameter of pile is much smaller than that L/δ shielded wave length (Woods 1978), the ground wave motion can be effectively shielded so long as the proper pile distance is to be selected. This makes it possible that the silo and pile (as well as the pile of other form and material) barriers can be used in practical engineering. A successful example of silo and pile barrier engineering is firstly reported. The paper also established some design specifications as "Transmission effect" - efficiency of vibration isolation; "Diffraction effect" - range of vibration isolation; and "Coincident effect'' - result of vibration isolation. The author’s view on the relationship between the wave length and the depth and length of near fielded barrier (active vibration isolation) and far field barrier (passive vibration isolation) is also presented.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Second Conference

Publisher

University of Missouri--Rolla

Publication Date

3-11-1991

Document Version

Final Version

Rights

© 1991 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Mar 11th, 12:00 AM Mar 15th, 12:00 AM

Ground Vibration Isolated by Silo and Pile Barriers

St. Louis, Missouri

Based on the model, field test and theory research, this paper puts forward the design method of ground vibration isolated by silo and pita barriers, the practical engineering calculation and the remained problems in this respect. It is pointed out that although the diameter of pile is much smaller than that L/δ shielded wave length (Woods 1978), the ground wave motion can be effectively shielded so long as the proper pile distance is to be selected. This makes it possible that the silo and pile (as well as the pile of other form and material) barriers can be used in practical engineering. A successful example of silo and pile barrier engineering is firstly reported. The paper also established some design specifications as "Transmission effect" - efficiency of vibration isolation; "Diffraction effect" - range of vibration isolation; and "Coincident effect'' - result of vibration isolation. The author’s view on the relationship between the wave length and the depth and length of near fielded barrier (active vibration isolation) and far field barrier (passive vibration isolation) is also presented.