Why trenchless horizontal directional drilling technology is needed

The reason why trenchless horizontal directional drilling has been more and more applied and valued not only has its inherent technical advantages, but also has the great desire brought by social development, mainly shown in: underground crossing is an inevitable requirement of social development.
Whether the planning of various industry departments is not in place, the coordination is not good, or the infrastructure development needs, new underground facilities are always increasing. At this time, either excavation or non excavation is inevitable.
Underground pipeline is an important part of urban infrastructure. Cable pipe, water supply and drainage pipe network, thermal (power) pipeline, together with the subway, are called the lifeline of the city. With the development of society, the length of underground pipeline continues to increase. On the other hand, the per capita pipeline share in China is far lower than that in western developed countries. The reason why trenchless technology is increasingly applied and valued has its inherent technical advantages, There are also great aspirations brought about by social development, which are mainly shown as follows:
(1) Whether the planning of various industry departments is not in place, the coordination is not good, or the infrastructure development needs, new underground facilities are always increasing. At this time, either excavation or non excavation is inevitable. As the advantages of trenchless are gradually recognized, the trenchless technology is becoming mature, and the cost of trenchless construction is decreasing year by year, so the application of trenchless is increasing year by year. Underground pipeline is an important part of urban infrastructure. Cable pipe, water supply and drainage pipe network, thermal (power) pipeline, together with the subway, are called the lifeline of the city. With the development of society, the length of underground pipeline continues to increase, and there is huge growth space in the trenchless market.
(2) Although some of them have surface excavation conditions, non excavation becomes a method because the pipeline is buried too deep and the groundwater level is high. The application field of horizontal directional/steering drilling technology is environmental control engineering. Pollutants such as some large garbage disposal sites, industrial waste sites, aircraft fuel depots in airports and air force bases, underground fuel depots, oil refineries, gas stations, etc. infiltrate into the ground under the action of rainwater, polluting groundwater and soil. Horizontal directional/directional drilling technology shall be adopted to drill horizontal wells in the polluted area, and filter shall be laid in them to extract the polluted groundwater and prevent the further diffusion of pollutants.
(3) Trenchless has the competitive advantages of environmental protection and livability. If the excavation volume of a city exceeds a certain proportion, it will inevitably affect the traffic and the normal life of citizens. The trenchless construction will not hinder traffic, pollute the environment, damage vegetation, affect surrounding buildings, and affect all normal life and work order of residents.