Abstract: Geotechnical engineering was established as a formal discipline in the 1920s, with a focus on the large projects of the latter stages of the industrial revolution. In the intervening years since the 1920s, the field has ...

Abstract: Replacement of the old Lock and Dam 26 on the Mississippi River involves construction of one of the largest systems of cellular cofferdams ever built. Preliminary analyses using conventional theories led to sometimes ...

Abstract: The basic objective of a self‐boring pressuremeter (SBPM) test is to insert a cylindrical probe into the ground with a minimum of disturbance and expand the membrane covering the probe so as to load the soil to failure. ...

Abstract: Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand‐mining equipment and immediately supported with a continuous shell ...

Abstract: The earth pressure balance (EPB) shield has proven to be successful for tunneling in soft ground in homogeneous soils. On three recent soft ground tunneling projects in Washington, D.C., EPB shields were used in mixed ...

Abstract: Cemented soils are characterized by their ability to stand in very steep natural and man‐made slopes which are prone to sudden failures during earthquakes. Because of the hazard posed by such slope failures in many parts ...

Abstract: The San Francisco waterfront was constructed between 1850 to 1920 by placing fill along the San Francisco Bay. The fills, reaching thicknesses of up to 40 ft (12 m), consist primarily of dune sand, rock fragments, bay mud, ...

Abstract: TWO probabilistic models are proposed to study the development of pore pressure in saturated sands under random loading. The first of these is based on laboratory data, while the second uses an analytically based effective ...

Abstract: During 1977–1978 a series of 25 ft wide (8 m) by 30 ft deep (9 m) sewer culverts were built in the Islais Creek Basin near San Francisco Bay. The sheetpile wall supported excavations for the culverts were made through ...

Abstract: Earth pressure balance (EPB) shields can be operated so that soil is forced away from its face; this heaving process may cause smaller surface settlements than would result from tunneling, without inducing any initial ...