Application of small trenchless drilling rig in granite formation crossing construction

The use of horizontal directional drilling technology for pipeline crossing construction is an ideal construction method for completing projects such as water and electricity pipeline network construction and communication optical cable laying under the principle of not destroying the landform state and protecting the environment in urban municipal construction. In the past ten years, the horizontal directional drilling technology has been widely used in various industries in my country. The construction of the crossing has gradually expanded from the general soil layer to the sand layer, gravel layer, gravel layer and rock layer. The result is that the construction becomes more and more difficult. This requires our construction machinery to have more functions, and at the same time, constantly update the construction process, and reasonably determine the operating parameters.

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