Principle of Horizontal Directional Drilling

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Principle of Trenchless Horizontal Directional Drilling

Principle of Trenchless Horizontal Directional Drilling

Modern trenchless construction technology originated in Japan, the United Kingdom and the United States in the late 1960s. Due to its technical advantages, it has been widely promoted all over the world. In 1986, the International Association for Trenchless Technology (ISTT) was established in London. -International Society for Trenchless technology). Trenchless construction techniques mainly include horizontal directional drilling construction and …

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