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RISLong-Term Assessment of a Layered-Geotextile Protection Layer for Geomembranes
Publisher: American Society of Civil Engineers
Abstract: The effectiveness of layered-geotextile protection layers comprised of combinations of nonwoven needle-punched, woven slit-film, and nonwoven heat-bonded geotextiles to minimize strains in landfill geomembranes is examined. ...
Physical Response of Geomembrane Wrinkles Overlying Compacted Clay
Publisher: American Society of Civil Engineers
Abstract: The short-term physical response of a 1.5-mm-thick, high-density polyethylene geomembrane with an artificially formed wrinkle and overlying three different subgrade materials (sand and compacted clay at two initial water ...
Thickness and Hydraulic Performance of Geosynthetic Clay Liners Overlying a Geonet
Publisher: American Society of Civil Engineers
Abstract: Experimental results from physical testing are reported to examine the thickness and hydraulic performance of three geosynthetic clay liners (GCLs) overlying a geonet when subjected to vertical stresses (e.g., as may be ...
Short-Term Local Tensile Strains in HDPE Heap Leach Geomembranes from Coarse Overliner Materials
Publisher: American Society of Civil Engineers
Abstract: Local tensile strains in a 1.5-mm-thick high-density polyethylene (HDPE) geomembrane induced from coarse overliner soil materials intended to simulate the physical conditions at the base of a heap leach mineral extraction ...
Axial Stress-Strain Response of HDPE from Whole Pipes and Coupons
Publisher: American Society of Civil Engineers
Abstract: High-density polyethylene (HDPE) pipes are subjected to tensile stresses and strains in the axial direction during and after a pulled-in-place installation by horizontal directional drilling or pipe bursting. During these ...
Effectiveness of Viscoelastic Models for Prediction of Tensile Axial Strains during Cyclic Loading of High-Density Polyethylene Pipe
Publisher: American Society of Civil Engineers
Abstract: High-density polyethylene (HDPE) pipelines are commonly installed using horizontal directional drilling (HDD), a trenchless construction technique used to replace or expand underground pipelines which generates cyclic axial ...
Estimating Liquefaction-Induced Lateral Displacements Using the Standard Penetration Test or Cone Penetration Test
Publisher: American Society of Civil Engineers
Abstract: A semiempirical approach to estimate liquefaction-induced lateral displacements using standard penetration test (SPT) or cone penetration test (CPT) data is presented. The approach combines available SPT- and CPT-based ...
Short-Term Lateral Response of a Buried Modular Polymer Stormwater Collection Structure to Compaction and Overburden Pressure
Publisher: American Society of Civil Engineers
Abstract: Results from full-scale physical experiments are reported to identify and quantify short-term lateral response around the perimeter of a modular polymer stormwater collection structure during backfilling and under applied ...
Column Forces in a Buried Modular-Polymer Stormwater Collection Structure from Design-Truck Loading
Publisher: ASCE
Abstract: Results from full-scale physical experiments are reported to quantify the column forces that develop in a modular, polymer stormwater collection structure when buried at its minimum soil cover and subjected to design-truck ...
Antioxidant Depletion from a High Density Polyethylene Geomembrane under Simulated Landfill Conditions
Publisher: American Society of Civil Engineers
Abstract: Accelerated aging tests to evaluate the depletion of antioxidants from a high density polyethylene geomembrane are described. The effects of temperature, high pressure, and continuous leachate circulation on the aging of ...