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Identificação de fatores de risco em obras de HDD: uma revisão da literatura
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia Civil, 2021-04-08)
Horizontal Directional Drilling (HDD) is a tubing installation technology underground without the necessity for trenching. This technology is used in urban areas due to the reduced impact on traffic and activities around ...
Efectos del calentamiento global sobre el consumo de energía en la ciudad de Córdoba, Argentina
(2013)
En este trabajo se estima la variación de la demanda de energía residencial para la ciudad de Córdoba en el período 1960-2011, a partir de los grados-día de calefacción (HDD) y grados-día de enfriamiento (CDD), y se utilizan ...
Validação experimental da equação de Hazen-Dupuit-Darcy (HDD) modificada para meios porosos finos
(Universidade Tecnológica Federal do ParanáGuarapuavaBrasilEngenharia MecânicaUTFPR, 2015-06-26)
The classical pressure-drop equation for porous media flow—the Hazen-Dupuit Darcy equation, or simply HDD—relates the pressure-drop per unit of porous medium length of an isothermal, incompressible, porous médium saturating, ...
Loss of a 30" directional crossing due to pipeline collapse during pullback
(Elsevier, 2013-06-19)
This article concerns the loss of a Horizontal Directional Drilling crossing due to a failure that took place during pullback of the pipeline. The more than 500 m long drilling was meant to lodge a 30″ pipeline that crossed ...
Engineering Innovation of a Length of Nearly 3300m large Diameter Pipeline Installed by HDD
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Geociencia, 2016-01-01)
The Yangtze River Crossing Project, which is part of the Chinese gas pipeline trunk network and aims to transmit the natural gas to the Yangtze River Delta area, sets up a record for the length of Horizontal Directional ...