Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

67results about How to "Strong influence" patented technology

Non-excavation horizontal directional drilling crossing construction method for high-pressure gas pipeline

The invention relates to a non-excavation horizontal directional drilling crossing construction method for a high-pressure gas pipeline, and belongs to the technical field of pipeline laying. The non-excavation horizontal directional drilling crossing construction method comprises the following steps that a horizontal directional drilling rig is placed beside a work pit and fixed through anchor rods; a guiding hole is constructed according to the designed pipeline trajectory curve; after the guiding hole is drilled, broaching is conducted through a broaching drill bit, and meanwhile drilling fluid is added into the guiding hole through the broaching drill bit; a drilling rod for last broaching and the high-pressure gas pipeline are connected through a pipe pulling head, and the drilling rod is pulled back to pull the high-pressure gas pipeline into the guiding hole; and cement slurry is injected into a gap between the high-pressure gas pipeline and the guiding hole. According to the non-excavation horizontal directional drilling crossing construction method, the hole wall of the drilled hole can be supported by the drilling fluid in time, the stability of the hole wall is guaranteed, the construction risk caused by hole collapse is reduced, the dosage of bentonite is less, the construction cost can be reduced, and the environment is protected.
Owner:邳州中燃城市燃气发展有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products