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- W2385422641 abstract "The special long-distance drilling rigs cannot be used in the site of Neelum-Jhelum Hydropower Project in Pakistan due to their large volume.The horizontal drilling method is adopted based on the experimental and economical analyses by using light common rigs.The drilling rigs are improved by installing some stabilizing devices,and some modifications are performed by transforming the hoisting swivel elevator,the loading and unloading frame for orifice,the reaming device,the blocker and other associated components.The drilling parameters for different strata are determined based on experiments.A series of drilling components and control parameters suitable for engineering practices of the horizontal directional drilling with common drilling rigs are proposed through continuous improvement,adjustment and exploration.They are successfully applied in Neelum-Jhelum Hydropower Project and provide basis for the optimization parameters and construction schemes of excavation sections and culvert bracings." @default.
- W2385422641 created "2016-06-24" @default.
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- W2385422641 date "2013-01-01" @default.
- W2385422641 modified "2023-09-23" @default.
- W2385422641 title "Improvement and application of horizontal directional drilling technocogy" @default.
- W2385422641 hasPublicationYear "2013" @default.
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