Earth Structures

2011 ◽  
pp. 557-574
Keyword(s):  
Earth Structures

Reinforced earth structures situated on soft foundations

Géotechnique ◽  
1980 ◽  
Vol 30 (2) ◽  
pp. 207-213 ◽  
Author(s):  
C. J. F. P. Jones ◽  
L. W. Edwards
Keyword(s):  
Reinforced Earth ◽  
Earth Structures

Response of soils, foundations, and earth structures to the Chilean earthquakes of 1960

1963 ◽  
Vol 53 (2) ◽  
pp. 309-357
Author(s):  
C. Martin Duke ◽  
David J. Leeds
Keyword(s):  
Soil Liquefaction ◽  
Soil Failure ◽  
Earth Structures ◽  
Degree Of Damage ◽  
The Many

abstract Observations and interpretations of damage associated with soil failure in the Chilean earthquakes are presented. Effects of the earthquake are discussed relative to foundations, earth fills, harbor works, and landslides. Damage was extreme in several areas. Of particular interest were the frequent instances of apparent soil liquefaction and the many correlations between foundation conditions and degree of damage to structures.

Free oscillation observations through 1968

1969 ◽  
Vol 59 (5) ◽  
pp. 2079-2099
Author(s):  
John S. Derr
Keyword(s):  
Confidence Level ◽  
Free Oscillation ◽  
Statistical Tests ◽  
Standard Errors ◽  
Free Oscillations ◽  
The Earth ◽  
Earth Models ◽  
Earth Structures ◽  
Path Dependent ◽  
Consistent Basis

abstract All observations of the free oscillations of the Earth published through 1968 are weighted to produce a set of means and standard errors of the means. Fundamental orders 0 to 97 for spheroidal and 2 to 99 for torsional are treated, as well as many overtones up to order 49. Statistical tests indicate that some observations are path dependent at the 99 per cent confidence level. Comparison of these means and standard errors with published Earth models indicate that they form a consistent basis for inversion of free oscillation observations to infer Earth structures.

Performance-Based Probabilistic Seismic Slope Displacement Procedure

2018 ◽  
Vol 34 (2) ◽  
pp. 673-695 ◽  
Author(s):  
Jorge Macedo ◽  
Jonathan Bray ◽  
Norman Abrahamson ◽  
Thaleia Travasarou
Keyword(s):  
Seismic Performance ◽  
Full Range ◽  
Assessment Procedure ◽  
Seismic Displacement ◽  
Earth Systems ◽  
Crustal Earthquakes ◽  
Wide Range ◽  
Earth Structures ◽  
Hazard Level ◽  
Slope Displacement

Engineers often use simplified seismic slope displacement procedures to evaluate the seismic performance of earth structures and natural slopes. Current state of practice procedures typically separate the estimation of the ground motion intensity measure ( IM) from the estimate of seismic displacement ( D), given the selected IM hazard level. Thus D is estimated based on a single IM value. A straightforward performance-based seismic slope assessment procedure is proposed, which considers the full range of potential IM values to estimate seismic slope displacements directly related to a hazard level. Seismic performance is assessed through either a Newmark-type seismic displacement estimate or a calibrated seismic coefficient that can be used in pseudostatic slope stability analyses. The procedures were developed for a wide range of earth systems for shallow crustal earthquakes and subduction zone earthquakes. Currently employed simplified slope displacement procedures do not provide consistent assessments of the actual seismic slope displacement hazard. The proposed procedures can be readily used in practice to perform rigorous performance-based seismic slope displacement hazard assessments.

Sign in / Sign up

Export Citation Format

Share Document