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RISNumerical Evaluation of Consolidation of Soft Foundations Improved by Sand–Deep-Mixed Composite Columns
Publisher: American Society of Civil Engineers
Abstract: With the development of column technology, a new concept of composite columns has been proposed. Composite columns integrate two columns into one single column, which has a small inner column installed in the middle of a ...
Seismic Bearing Capacity of Strip Footings on Ground Reinforced by Stone Columns Using Upper-Bound Solutions
Publisher: ASCE
Abstract: In this technical note, the seismic bearing capacity coefficients of shallow foundations placed on soft ground reinforced by stone columns are evaluated based on the upper-bound theorem of limit analysis. A kinematically ...
Numerical Modeling of the Seismically Induced Uplift Behavior of Twin Tunnels
Publisher: ASCE
Abstract: During an earthquake, large movements of soil may cause the instability and uplift of buried structures in liquefied soil. Intensive studies on the uplift behavior of underground structures have mainly focused on a single ...
Greenfield Test and Numerical Study on Grouting in Silty Clay to Control Horizontal Displacement of Underground Facilities
Publisher: ASCE
Abstract: Compensation grouting has been widely applied for the vertical deformation control of constructed facilities. However, few studies have been conducted on the horizontal displacement control of underground facilities using ...
Ground Improvement of Dredged Fills with Two Improved Vacuum Preloading Methods: Case Study
Publisher: ASCE
Abstract: In a full-scale case study, the performance of two methods—the vacuum-surcharge preloading method (S-VP) and the air-booster vacuum preloading method (A-VP)—were compared in terms of the dredged soft soil ground of the ...
Comprehensive Satellite Observations and a Numerical Study of a Wintertime Shallow Sea Smoke Event in the Yellow Sea
Publisher: American Meteorological Society
Abstract: A winter storm triggered a significant sea smoke with the northwesterly wind to the Yellow Sea, China, on 7 January 2021. The ocean responses to this event lasted about 3 days. Satellite observations show that the sea ...
Field Testing and Numerical Analysis of Supporting Performance of Oblique Piles Used in Pit Excavation
Publisher: ASCE
Abstract: To explore the supporting performance of oblique piles (OPs) used in pit excavation, a field test was performed at a foundation excavation using OPs with various inclination angles. Then, numerical models using the ...
Design Method for Wall Deformation and Soil Movement of Excavations with Inclined Retaining Walls in Sand
Publisher: ASCE
Abstract: The inclined retaining wall has been demonstrated to be an effective and efficient retaining structure for limiting deformation during excavations. However, a design method regarding wall deformation and soil movement of ...
Effects of Creep on Grout Efficiency in Clay
Publisher: American Society of Civil Engineers
Abstract: Existing structures can deform and damage due to newly constructed underground structures, which induces surrounding soil deformation due to ground loss and stress relief. Compensation grouting is an active control method ...
Analytical Expression of the Swept Surface of a Rotary Cutter Using the Envelope Theory of Sphere Congruence
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Based on the observation that many surfaces of revolution can be treated as a canal surface, i.e., the envelope surface of a one-parameter family of spheres, the analytical expressions of the ...