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黄河大跨越工程被誉为特高压施工技术的巅峰工程,堪称世界之最。施工难度大。N3、N4两基铁塔位于黄河南岸的主河道上,流沙层和卵石层等复杂地质反复出现。对于这种密集超厚桩基的卵石层,任何一种传统钻机都不能很好地钻入。
The Yellow River Crossing Project is regarded as the pinnacle of UHV construction technology and it is the highest in the world. Construction is difficult. The N3 and N4 base iron towers are located on the main channel of the south bank of the Yellow River, and complex geology such as drift sand layers and pebble layers reappear. For this kind of pebble layer with dense super-thick piles, any kind of traditional rig can’t drill well.