1 词条
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Trenchless construction
Underground construction that involves little or no surface trenches so it has minimal disruption to traffic, business, and other activities. Trenchless technology is a fast growing sector of construction and civil engineering that covers such methods as boring, drilling, tunneling, and pipe ramming.
非开挖工程的贡献者
Trenchless construction
mini-horizontal 水平定向钻 (迷你-HDD)
建筑; 非开挖工程
可控曲面展开钻探设备安装管道、 管道和电缆。应用到小尺寸钻机。可能由步行超过定位器实现钻柱的追踪。在欧洲，它被称为引导镗孔。
