UNDERGROUND DIRECTIONAL DRILLING PROFESSIONAL

At the same time, since the machine should be also used in an urban environment, power system is designed to be interfaced also to common AC and DC recharge standards. To share higher level of power it is possible to directly access to vehicle DC Bus. This choice was justified by the possible availability of external electrical power in the construction yard: with the biggest storage size the machine can operate almost independently however even in a scenario in which the power available in the yard is very low, as example 3 or 10В kW, with smaller storage size machine operativity should be assured.ДЇor what concern the access to external power sources, the machine has been equipped with a system of parallel connected rectifier to exploit different levels of AC three phase and even mono-phase power. For this reason, it is important to use components that are widely diffused to assure their availability for a long period despite the relatively small number of constructed machines. Modularity and market availability: Proposed machines are constructed in relatively small series, but they have typically a long operational life to be assured. For this reason, thermal stability and reliability of cells is fundamental. Thermal stability: The machine is subjected to harsh environmental and operational conditions in construction yards.

Modular Power Pack and Optional hybridization of proposed system through the connection with an external powerpack. Trenchless excavation is a technique that is often used for a sustainable and cheaper installation of many underground services and commodities that are currently fundamental for urban communities with a limited impact not only in terms of pollution but also of potential waste of time and resources of the involved communities.ДЇig. So, in this case studies it is considered the possibility of an electrification and a hybridization of this kind of vehicles/construction machines.Д¬onsidered case study is a tracked directional drilling machine which is often used to perform trenchless excavation. These machines are usually equipped with ICE combustion engines that provide power for hydraulic or electro-hydraulic actuations.ДЄlso, these machines can be considered improperly as heavy vehicles with very specialized and energy demanding onboard functionalities. There is a wide range heavy construction machines that are usually wheeled or tracked to assure their mobility in construction yards and their transportability. Fernando Ortenzi, in Hybrid Technologies for Power Generation, 2022 8 Electrification with flexible hybridization strategies for construction machines In fact, in some situations, our price may even be lower.Luca Pugi. Prices do not vary much from conventional trenching methods.

Ideal for sites sensitive to surface disruptions like golf courses, airport runways, busy traffic junctions, difficult site conditions, etc.Д¬ost effective.

No more need to apply for road opening permits for public road works.ДЇaster and neater, usually requiring less than half the time needed by conventional trenching method. Less delays due to unfavorable weather conditions вЂ“ no more pumping water out of trenches and pits! Removes possibility of trenching-related accidents. Savings in reinstatement costs and eliminating the effort to blend with surroundings. Proven to be faster, more cost effective and definitely less disruptive to surface activities, directional drilling is a welcome technology whether installing utilities in the city, rural areas, parks or major infrastructure.ДЄnywhere and everywhere, directional drilling systems give people and the environment the convenience and protection of an otherwise polluted and messy worksiteД¬lean trenchless solution for underground installations without disturbing the above surface.

UNDERGROUND DIRECTIONAL DRILLING PROFESSIONAL

Directional drilling, a process of installing underground services without trenching is an efficient and professional method widely used in many developed and developing countries.

Underground directional drilling