摘要
深圳怡龙枫景园桩基工程地处灰岩岩溶地区,累计完成灌注桩364条,最大成桩桩长48 m,最大桩径1.7m。施工所遇地层复杂,频繁出现偏孔、涌水、漏水、坍塌、桩孔底层溶洞判断及灌注中溶洞洞穿等难题,以科学判断,严密预防,慎重处置,取得了良好的效果。
The paper introduced a pile foundation engineering in limestone karst area, 364 cast-in-place piles were completed with the longest pile of 48m and largest pile diameter of 1.7m. Because of the complex formation, hole deflection, water inrushing, leakage and collapsing often occurred, and it was difficult to estimate the cave at the bottom of the pile hole and cave-penetrating. The difficulties were overcome by scientific judgment, strict prevention and careful treatment.
出处
《探矿工程（岩土钻掘工程）》
2010年第1期53-56,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
钻孔灌注桩
事故
防治对策
岩溶地区
bored cast-in-place pile
accident
countermeasure
karst area
