Search
Now showing items 31-40 of 40
Development of Soil-Pile Interaction Models in Improved Soils Using Centrifuge Test Data and System Identification Methods
(2016-05-13)
Documented distresses in pile foundations in soft soils during past earthquakes have shown that piles founded in soft soils undergo large lateral deformations during seismic loading. Improving the soil surrounding the piles ...
DIMENSIONAL STABILITY OF CONCRETE SLABS ON GRADE
(2011)
Drying shrinkage is one of the major causes of cracking in concrete slabs on grade. The moisture difference between the top and bottom surface of the slabs causes a dimensional or "shrinkage" gradient to develop through ...
APPLICATION OF ECOSYSTEM ENERGETIC INDICATORS FOR THE VALUATION OF ECOSYSTEM SERVICES AND HEALTH
(2014)
Ecosystems services are benefits that humans receive from ecosystem functions. Ecosystem health is a term that is commonly used in the literature to describe the state of an ecosystem. Ecologists and economists have stated ...
Augmenting the Applicability and Efficiency of Ecological Engineering Solutions for Water Quality Improvement
(2010)
The design options available to the ecological engineer were expanded by exploring new sustainable water quality improvement techniques, specifically the applicability of passive treatment of acid mine drainage (AMD) in ...
EVALUATION OF RHEOLOGICAL PROPERTIES OF ASPHALT BINDERS FOR PAVEMENT DESIGN APPLICATIONS
(2011)
More that 90% of the total paved roadways in the U.S. are asphalt concrete (AC) pavements. The annual expenditures for construction and maintenance of these pavements exceed $10 billion. To reduce these maintenance costs, ...
A STUDY ON THE INFLUENCE OF SELECTED GEOGRID INDEX PROPERTIES ON THEIR IN-AGGREGATE PERFORMANCE
(2013)
Geogrids are polymer-based products which are commonly used to reinforce soil walls, steep slopes and roadway bases. Inclusion of geogrids as aggregate base reinforcement, with proper installation, has been shown to result ...
A LABORATORY INVESTIGATION AND MODELING OF DYNAMIC MODULUS OF ASPHALT MIXES FOR PAVEMENT APPLICATIONS
(2011)
Traditionally, stiffness of hot mix asphalt (HMA) has been used as a measure of the pavement's ability to carry vehicular traffic loads without undergoing excessive deformation. Early deterioration of pavements due to ...
SEISMIC AND QUASI-STATIC LATERAL LOAD BEHAVIOR OF PILE GROUPS IN IMPROVED SOFT CLAY: CENTRIFUGE AND NUMERICAL MODELING
(2015-12-18)
In the design of pile foundations subjected to lateral loading, one of the objectives is to restrict the lateral displacements. Improving the soil surrounding the pile foundation is an innovative and cost-efficient solution ...
DEVELOPMENT OF A PROTOTYPE IN-SITU FATIGUE SENSOR FOR STRUCTURAL HEALTH MONITORING OF HIGHWAY BRIDGES
(2010)
Fatigue damage to bridges has been identified as a threat to bridge safety. Fatigue cracks usually occur at stresses lower than the anticipated design stress levels. Unlike yielding or corrosion, fatigue cracks are seldom ...
Soil-Structure Interaction Studies for Understanding the Behavior of Integral Abutment Bridges
(2013)
Integral Abutment Bridges (IABs) are increasingly being used to eliminate undesirable effects of bridge joints on the long-term performance of bridges. Behavior of abutments in IABs is, however, poorly understood. ...