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ASTM D6939-03
Standard Practice for Brushmattressing (Withdrawn 2012)
4 стр.
Отменен
Электронный (pdf)Печатное издание
81.12 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
07.100.01 Microbiology in general / Микробиология в целом13.080.05 Examination of soils in general / Анализ грунта в целом
Сборник (ASTM):
04.09 Soil and Rock (II): D5878 – latest / Грунт и Горные породы (II): с D5878 и далее
Тематика:
Geotechnical Engineering
Описание
Причина отмены

This practice covers the material, preparation and installation work required for brush-mattress construction used in soil bioengineering.

Formerly under the jurisdiction of Committee D18 on Soil and Rock, this practice was withdrawn in July 2012 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees , which requires that standards shall be updated by the end of the eighth year since the last approval date.

Значение и использование

A brushmattress is used to provide erosion and sedimentation control primarily by armoring the bank. In addition to shielding the surface, a brushmattress can increase infiltration, slow runoff, and trap seed and sediments. This method provides surface slope stabilization through vegetative growth and shallow soil reinforcement through root development. The ability of a brushmattress to function properly depends on the quality and choice of the materials used to construct the brushmattress, the means and methods of fabrication and installation, and proper consideration of site characteristics and time of year. For the brushmattress to function completely, it is important that the live material develops suitable growth. The brushmattress helps to control soil erosion while serving as habitat for birds, small mammals, invertebrates and other organisms that in turn, are fed upon by fish and other higher organisms. Once the vegetation matures, it can provide shade to the streamlowering water temperatures, offering protection from predators, and generally improving fish habitat. Figs. 1-3 show a brushmattress immediately after construction, in the first growing season, and in the 2nd season.


FIG. 1 Brushmattress after Light Backfill of Soil


FIG. 2 Brushmattress in the First Growing Season


FIG. 3 Brushmattress during 2nd Growing Season

Область применения

1.1 This practice covers the material, preparation and installation work required for brush- mattress construction used in soil bioengineering.

1.2 The values in this standard are in SI units and are to be regarded as the standard. The inch-pound units given in parentheses are for information only.

1.3 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace standard of care by which adequacy of a given professional service must be judged, nor should this document be applied without considerations of a project's many unique aspects. The word standard in the title of this document means only that the document has been approved through the ASTM consensus process.

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.

Ключевые слова:
brushmattress; erosion control; soil bioengineering; streambank stabilization: Animal habitats; Brushmattressing; Erosion control materials/applications; Installation--ground water/subsurface devices/applications; Sediment control; Soil bioengineering; Streambank stabilization; Surface slope stabilization; Trenches; Vegetativly self-propagating woody plant species