埕岛油田反复插拔桩区域就位风险及预防措施
|
|
安涛, 林增勇, 张达
|
Risk and Preventive Measures of Pile Placement in Chengdao Oilfield
|
|
AN Tao, LIN Zengyong, ZHANG Da
|
|
表1 A井场动平台艏桩工程地质调查成果参数表
|
Tab.1 Soil parameters of borehole at wellsite of jack-up bow pile at Well Site A
|
|
土层
编号 | 土层名称 | 深度/m | 水下重度/
(kN·m-3) | 黏性土设计
抗剪强度/kPa | 粒状土设计
抗剪强度,Φ/(°) | 承载力系数 | | Nq | Nr | | 1 | 粉土 | 0.0~2.1 | 7.5~9.5 | | 13~18 | 3.9 | 2.6 | | 2 | 粉土 | 2.1~7.1 | 8.5~10.5 | | 25~28 | 10.7 | 10.9 | | 3 | 粉砂 | 7.1~8.0 | 8.5~10.5 | | 27~30 | 14.7 | 16.7 | | 4 | 粉质黏土 | 8.0~11.2 | 8.0~10.0 | 42.2~65.6 | | | | | 5 | 粉土 | 11.2~14.6 | 8.5~10.5 | | 27~30 | 14.7 | 16.7 | | 6 | 粉砂 | 14.6~17.8 | 8.5~10.5 | | 27~30 | 14.7 | 16.7 | | 7 | 粉质黏土 | 17.8~19.1 | 8.0~10.0 | 57.6~85.8 | | | | | 8 | 粉土 | 19.1~20.0 | 8.5~10.5 | | 28~32 | 18.4 | 22.4 |
|
|
|