| 高 星.喀麦隆某水泥库群桩基础沉降机理与处理对策研究[J].水泥工程,2025,38(2):78-82 |
| 喀麦隆某水泥库群桩基础沉降机理与处理对策研究 |
| Settlement mechanism and treatment strategies for pile group foundation of a cement silo in cameroon |
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| 中文关键词: 群桩基础 软土地基 差异沉降 压缩模量 沉降预测 |
| 英文关键词: pile group foundation soft soil foundation modulus of deformation differential settlement settlement prediction |
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| 中文摘要: |
| 本文针对喀麦隆某水泥库群桩基础异常沉降事件，通过现场调查、理论计算与监测数据分析相结合的方法，揭示了河口三角洲软土地基条件下重型筒仓结构的沉降和倾斜对结构安全的影响。该场地为天然含水量96.3%、孔隙比2.33的饱和软黏土，具有显著的高压缩性，场地条件对结构沉降比较敏感。采用分层总和法并考虑相邻库荷载影响对基础沉降和倾斜进行了理论计算，并将理论计算结果和实测结果进行了对比，结果表明计算沉降量虽然小于规范限值，但对周围结构和设备已经产生了不利的影响。最后根据分析结果，提出了处理措施。 |
| 英文摘要: |
| This paper addresses the abnormal settlement of a cement silo pile group foundation in Cameroon by integrating field investigations, theoretical calculations, and monitoring data analysis. The study reveals the impact of settlement and tilting of heavy silo structures on structural safety under estuarine delta soft soil conditions. The site is characterized by saturated soft clay with a natural water content of 96.3% and a void ratio of 2.33, demonstrating significant high compressibility and sensitivity to structural settlement. Theoretical calculations for foundation settlement and tilting were conducted using the layered summation method, incorporating the influence of adjacent silo loads. A comparative analysis between theoretical predictions and field measurements indicates that despite the calculated settlement values being below code-specified limits, detrimental effects on surrounding structures and equipment were observed. Finally,based on the analysis results, treatment meausres are proposed. |
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