Sökning: "water hammer"
Visar resultat 1 - 5 av 11 avhandlingar innehållade orden water hammer.
1. System for water driven down-hole hammer drilling
Sammanfattning : Drilling with water driven down-hole hammers is a recently developed method for competitive production of boreholes. The technology requires large flow rates of preferably high quality fluid to drive the hammer tool. One method to reduce the consumption is to process and recycle the used drilling fluid. LÄS MER
2. From words to action : Lessons from active stakeholder participation in water management
Sammanfattning : Water governance worldwide is going through a shift towards more holistic and participatory approaches. In Europe, the EU Water Framework Directive (WFD) adopted in 2000, aims at protecting surface water and groundwater. LÄS MER
3. Water powered percussive rock drilling : process analysis, modelling and numerical simulation
Sammanfattning : This thesis is devoted to problems, processes and systems related to the recently developed water powered percussive rock drilling method. The technology, which uses ordinary water to drive down-the-hole hammers, has been used to produce more than 6 million meters of blast holes within the mining industry. LÄS MER
4. Creating pathways for stakeholder participation in water management
Sammanfattning : The role of stakeholder participation has been increasingly recognized as important in water management. The EU Water Framework Directive (WFD), adopted in 2000 requires Member States to fulfill three levels of participation; information, consultation and active involvement. LÄS MER
5. Towards Sustainable Urban Development in Expansive Urban Regions : Conditions and Challenges for Municipal Spatial Planning Practice
Sammanfattning : From the local to the global level, there is a growing insight that human actions are having a profound and wide-reaching impact on natural and social systems. As a consequence, there is a need for sustainable development and planners are now challenged to integrate social, ecological and economic aspects in utilized planning process that span from the regional to the local. LÄS MER