<p>A series of full scale tests have been undertaken to assess the performance of ground strengthening methods to improve seismic performance of liquefiable soils in the Christchurch area. The tests used sequences of explosive charges to simulate seismic shaking ...

<p>Most of the Egyptian irrigation structures were built many decades ago. Most of these structures may be classified as unsafe structures when making an assessment of their resistance to earthquake loads in accordance with the current specifications. This ...

<p>The purpose of this study is to clarify the seismic performance of piled raft foundations with ground improvement based on seismic observation records. The monitored building, which is a twelve-story base-isolated building, is located on loose silty sand ...

A short discussion on various ground improvement methods available for liquefaction mitigation was presented highlighting the importance of columnar inclusions. Construction methods of different granular columnar inclusions like sand compaction piles/ granular ...

<p>In this study, application of modified dry bottom feed stone column as one of the dominant ground improvement methods in the region was introduced. Also, a numerical analysis is carried out to check its performance with respect to displacements. According ...

Drilled displacement piles are installed by the displacement of soil and subsequent placement of fluid cement grout within the evacuated volume. Depending on the soil grain-size characteristics, soil behavior, in situ soil density, pile spacing, and pile diameter, ...

The original subgrade conditions generally consisted of loose, liquefiable sands, expected to significantly lose strength during the design earthquake and soft, compressible clays. To mitigate the risk of liquefaction-induced instability and to mitigate the ...

<p>In this paper, we present a broad overview of the field case histories available for improved sites that have been subjected to strong ground shaking. This work is part of a larger research project intended to establish relationships between remediation ...

A computational model for dynamically induced liquefaction is calibrated by centrifuge model tests. The model is a time domain code based on a nonlinear coupled solid-fluid formulation. Special attention is dedicated to the concept of cyclic mobility during ...

This report reviews five low vibration ground improvement techniques suitable for remedial work near existing structures. The five techniques are: - compaction grouting, permeation grouting, jet grouting, in situ soil mixing, and drain pile. The factors which ...