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The significance of soil piping processes : inventory and prospect
  • The significance of soil piping processes : inventory and prospect
  • Special issue, piping erosion
  • as a collection of papers on piping. However, it is clear from the reviews cited that this term has been used to cover a considerable range of subsurface erosion features formed by different processes. A brief clarification is needed, there are 2 types
  • of subsurface erosion apart from solution : true piping in the engineering sense and tunnel erosion.
Etudes des processus d'érosion linéaire le long d'un pipe-line (oblast d'Orenbourg)
  • Etudes des processus d'érosion linéaire le long d'un pipe-line (oblast d'Orenbourg)
  • Erosion des sols ; Expérimentation de terrain ; Gaz naturel ; Impact ; Lutte contre l'érosion ; Orenburg ; Pipe-line ; Ravinement ; Russie d'Asie
  • Asian part of Russia ; Erosion control ; Field experiment ; Gully erosion ; Impact ; Natural gas ; Orenburg ; Pipe-line ; Soil erosion
  • Mesures de terrain et risques de formation de ravins le long du tracé du pipe-line de gaz sur l'une des steppes de cet oblast. Evaluation de la durée de croissance des ravins. Détermination dees formes d'érosion les plus dangereuses et des mesures
Conical sandstone landforms cored with clastic pipes in Glen Canyon National Recreation Area, southeastern Utah
  • Conical sandstone landforms cored with clastic pipes in Glen Canyon National Recreation Area, southeastern Utah
  • of fluidized sandstone (clastic pipes) that typically have near-vertical contacts with the enclosing cross-bedded, eolian sandstone. These landforms vary in size and shape due chiefly to differential erosion of the clastic pipe relative to the enclosing
  • sandstone. The resistant rims of these pits are due in part to calcite-enriched pipe contacts. Sandy pit-floor sediment is removed principally by strong wind rotors and vortices.
Laboratory soil piping and internal erosion experiments : evaluation of a soil piping model for low-compacted soils
  • Laboratory soil piping and internal erosion experiments : evaluation of a soil piping model for low-compacted soils
  • Experimentation ; Model ; Piping ; Seepage ; Soil ; Soil erosion ; Soil moisture ; Soil properties ; Underground water ; Water erosion
  • This study utilized a soil box to conduct constant-head, soil pipe and internal erosion experiments for 2 low-compacted soils (clay loam from Dry Creek and sandy loam from Cow Creek streambanks). Flow rates and sediment concentrations were measured
  • from the pipe outlet. Replicate submerged jet erosion tests (JETs) were conducted to derive erodibility parameters for repacked samples at the same moisture contents. Flow rates from the box experiments were used to calibrate the mechanistic model
  • . The influence of the initial moisture content was apparent, with some pipes (8% moisture content) expanding so fast that limited data was collected. The mechanistic model was able to estimate equivalent flow rates to those observed in the experiments, but had
  • difficulty matching observed sediment concentrations when the pipes rapidly expanded. The JETs predicted similar erodibility coefficients compared to the mechanistic model for the more erodible cases but not for the less erodible cases (14% moisture content
Pipe and gully systems development in the Almanzora Basin (Southeast Spain)
  • Pipe and gully systems development in the Almanzora Basin (Southeast Spain)
  • Dans le bassin de la rivière Almanzora, les processus d'érosion par piping conditionnent de manière importante le développement du ravinement et les zones de badland. Constat d'un important contôle litho-structural dans la genèse et l'évolution de
Environmental factor weighting at the Federal Energy Regulatory Commission
  • Analyse hiérarchique ; Analyse multicritère ; Energie ; Environnement ; Etats-Unis ; Etats-Unis du Nord-Est ; Etude d'impact ; Gaz naturel ; Pipe-line ; Projet
  • Energy;Power ; Environment ; Impact study ; Multi-criteria analysis ; Natural gas ; Pipe-line ; Project ; United States
  • Problème de l'évaluation par cette commission Fédérale de l'impact sur l'environnement d'un projet de construction de pipe-line. La comparaison de plusieurs projets est plus aisée si l'on utilise le processus d'analyse hiérarchique.
Piping erosion and badland development in south-east Spain in Arid and semi-arid environments. Geomorphological and pedological aspects.
  • Piping erosion and badland development in south-east Spain in Arid and semi-arid environments. Geomorphological and pedological aspects.
  • This paper outlines the geological characteristics of the area, the bioclimatic conditions, badlands evolution and the infiltrability of the Neogene marl regoliths, as well as correlations between rainfall, overland flow and soil erosion. Piping
Dinamica erosiva del piping : un ejemplo en la depresion del Ebro
  • Dinamica erosiva del piping : un ejemplo en la depresion del Ebro
  • Travail centré sur la région des Bardenas orientales, dans le Bassin de l'Ebre où le phénomène de piping (suffosion) qui, climatiquement, présente un caractère semi-aride, y est très courant. Avec proposition d'une typologie. - (JLG)
Soil pipes and their role in runoff generation and chemical denudation in a humid tropical catchment in Dominica
  • Soil pipes and their role in runoff generation and chemical denudation in a humid tropical catchment in Dominica
  • Numerous soil pipes are reported from a small catchment in an area of kandoid (kaolin-rich) soils and 2375 mm annual rainfall in the humid tropical volcanic island of Dominica West Indies, contributing at least 14-16 % of streamflow. The principal
An experimental study on the burrowing activity of river crabs on subsurface water movement and piping erosion
  • An experimental study on the burrowing activity of river crabs on subsurface water movement and piping erosion
  • Special issue, piping erosion
  • In this study, the effect of burrowing activity on subsurface water movement and piping erosion was studied in a flume experiment using cohesive soil. This laboratory observation on the interaction of burrowing activity of river crabs and subsurface
Sinkholes formed by piping into buried channels
  • Sinkholes formed by piping into buried channels
  • Special issue, piping erosion
  • Piping-induced sinks in flood-irrigated alfafa fields on the distal part of a compound alluvial fan in California's Central Valley lack discharge conduits. It is suggested that all inflow and sediment are dispersed underground in former distributary
Throughflow and pipe monitoring in the humid temperate environment in Badland geomorphology and piping.
  • Throughflow and pipe monitoring in the humid temperate environment in Badland geomorphology and piping.
The occurence of piping and gullying in the Penticton glacio-lacustrine silts, Okanagan Valley, B. C. in Badland geomorphology and piping.
  • The occurence of piping and gullying in the Penticton glacio-lacustrine silts, Okanagan Valley, B. C. in Badland geomorphology and piping.
Piping in the Big Muddy badlands, southern Saskatchewan, Canada in Badland geomorphology and piping.
  • Piping in the Big Muddy badlands, southern Saskatchewan, Canada in Badland geomorphology and piping.
The role of piping in the development of badlands and gully systems in south east Spain in Badland geomorphology and piping.
  • The role of piping in the development of badlands and gully systems in south east Spain in Badland geomorphology and piping.
Piping and pipeflow in a deep peat catchment
  • Piping and pipeflow in a deep peat catchment
  • This paper presents the results of a pipeflow study in a deep blanket peat catchment of the North Pennines, UK. Automated gauging has been done on 10 pipe sites (on 8 separate pipes), 2 seepage zones, a drainage ditch, a gully and on streamflow
Eurasian natural gas pipelines : the political economy of network interdependence
  • Asie centrale ; Chine ; Eurasie ; Gaz naturel ; Moyen-Orient ; Pipe-line ; Russie ; Réseau ; Union Européenne
  • Central Asia ; China ; Eurasia ; European Union ; Middle East ; Natural gas ; Network ; Pipe-line ; Russia
Ephemeral gully erosion by preferential flow through a discontinuous soil-pipe
  • Ephemeral gully erosion by preferential flow through a discontinuous soil-pipe
Adatok a lösz pusztulásának egy sajátos formájához
  • Author has measured calcium carbonate dissolving capacity of the water infiltrating into the loess mantle of Mount Tokaj. This is an important parameter in the development of piping features characteristic of the area. Extensive piping systems were
The effects of soil piping on contributing areas and erosion patterns
  • The effects of soil piping on contributing areas and erosion patterns