Topic
Lateral earth pressure
About: Lateral earth pressure is a research topic. Over the lifetime, 5334 publications have been published within this topic receiving 62552 citations.
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TL;DR: In this article, a new empirical scheme for simulating the nonlinear point resistance response of single piles in cohesionless soils is proposed, which is idealized by using a one-dimensional finite element technique.
Abstract: A new empirical scheme for simulating the nonlinear point resistance response of single piles in cohesionless soils is proposed. The pile‐soil system is idealized by using a one‐dimensional finite element technique. The shear resistance response along the pile shaft is found by using the concept of t‐z curve proposed by Kraft et al., whereas the new method is used to define the tip resistance response or the so‐called p‐z curve. A generalized Ramberg‐Osgood model is utilized to simulate the nonlinear t‐z and p‐z curves. To check the validity of the method, four examples involving field and laboratory tests on piles in sands are considered. The comparisons between the finite element predictions, and the laboratory and field observations, show good correlation. The results are relevant to a specific class of problems that involve submerged or dry sand, long piles, and a constant value of the lateral earth pressure coefficient.
67 citations
TL;DR: A backfilled room-and-pillar test section of the Buick Mine near Boss, Missouri, USA, has been used for nearly 16 years to monitor long-term underground safety by supporting the mine roof and maintaining the strength of support pillars as discussed by the authors.
67 citations
TL;DR: In this paper, the results of a detailed field instrumentation program conducted on an Earth Pressure Balanced (EPB) shield driven tunnel for the construction of the Shanghai Metro Tunnel-Line 2 in China are presented.
67 citations
TL;DR: In this paper, a series of physical model tests was conducted for the active case of a rigid retaining wall subjected to horizontal translation, and the behavior of a granular retained soil was investigated experimentally using a set of precise miniature pressure cells and particle image velocimetry.
Abstract: A series of physical model tests was conducted for the active case of a rigid retaining wall subjected to horizontal translation. The behaviour of a granular retained soil was investigated experimentally using a set of precise miniature pressure cells and particle image velocimetry. The good agreement between the experimental results and the arch-action-based theories for lateral active earth pressure could confirm the arching effect behind the retaining walls in the active translation mode. The distribution of shear strain confirms that, for active wall movement, the failure zone is distinguished from the stationary zone by a shear band behind the wall.
67 citations
TL;DR: In this paper, a practical approach for the estimation of t-z curves along bored piles by considering the nonlinear elastic properties and modulus degradation characteristics of the soil is proposed.
Abstract: The load-transfer (or t-z) curve, which reflects the interaction between a pile and the surrounding soil, is important for evaluating the load-settlement response of a pile subjected to an axial load using the load-transfer method. Preferably, the nonlinear stress-strain behavior of the soil should be incorporated into the t-z curve. This paper presents a practical approach for the estimation of t-z curves along bored piles by considering the nonlinear elastic properties and modulus degradation characteristics of the soil. A method for evaluating the modulus degradation curve from the results of a pressuremeter test is proposed. The results of load tests on one instrumented bored pile in Piedmont residual soil in Atlanta and another in the residual soil of the Jurong Formation in Singapore provide verification of the validity of the proposed approach.
67 citations