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Significance and Use
5.1 This practice is intended to provide installation guidance for designers, specifiers, installation contractors, regulatory agencies, owners, and inspectors who are involved in the planning and installation of geocomposite pavement edgedrains and underdrains. As with any standard practice, modification may be required for specific project conditions or for special local or regional conditions. shows the proper horizontal alignment of the drain based on various trench conditions outlined in , and the vertical depth of placement of the drain needed for a geocomposite edge drain to function most effectively as both a collector and conduit.
Note 1: Drain positioning gate should be located and adjusted to position, and hold the geocomposite drain against the trench wall, to prevent possible “J”ing or “C”ing of the drain during backfilling and compaction.
1.1 This practice covers recommendations and identifies pertinent areas of consideration for the installation of buried geocomposite drains used for highway edgedrains, under-drains, or other pavement drainage applications meeting the requirements of Specification . These recommendations are intended as guidelines for developing a satisfactory construction and installation method to minimize installation-caused deformation or damage and to provide long-term performance of these products. It is also intended as a guideline for ensuring a stable underground environment for these materials under a wide range of service conditions. Because of the numerous and diverse product designs available and the inherent variability of natural ground conditions, achieving satisfactory performance of any one product may require review by the engineer and modification to provisions contained herein to meet specific project requirements.
1.2 The scope of this practice necessarily excludes product performance criteria such as compressibility in any plane, flow capacity, inlet capacity, or geotextile selection and use. It is, therefore, incumbent upon the product manufacturer, specifier, and project engineer to verify that the product specified for an intended application, when installed according to procedures outlined in this practice, will provide satisfactory long term performance according to criteria established by the owner for that application. A commentary of product performance and installation factors important in achieving a satisfactory installation is included in .
1.3 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D8 Terminology Relating to Materials for Roads and Pavements
D420 Guide to Site Characterization for Engineering Design and Construction Purposes
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D698 Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft3 (600 kN-m/m3))
D2321 Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications
D2487 Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
D3839 Guide for Underground Installation of Fiberglass (Glass-Fiber Reinforced Thermosetting-Resin) Pipe
D4318 Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
D4439 Terminology for Geosynthetics
D7001 Specification for Geocomposites for Pavement Edge Drains and Other High-Flow Applications
F412 Terminology Relating to Plastic Piping Systems
ICS Number Code 93.080.20 (Road construction materials)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D6088-06(2016), Standard Practice for Installation of Geocomposite Pavement Drains, ASTM International, West Conshohocken, PA, 2016, www.astm.orgBack to Top