砂性土地区堆山工程地基承载力计算及沉降观测  

Calculation of Bearing Capacity and Settlement Observation of Hill-pile Engineering Foundation in Sandy Soil Area

作　　者：林敏 LIN Min

机构地区：[1]南通市市级政府投资项目建设中心,江苏南通226000

出　　处：《城市道桥与防洪》2023年第1期264-267,I0024,共5页Urban Roads Bridges & Flood Control

摘　　要：人工堆山工程具有土方体积大、荷载分布广、固结时间长等特点。同时堆山工程对于地基要求较高,极易发生地基承载力不足或土体抗剪强度不够等重大工程事故。结合南通市中央创新区紫琅公园内人工山体堆筑工程,通过地质条件分析、地基承载力计算及周边地面沉降观测,研究利用天然地基处理方案进行堆山工程的可行性。通过长期观测数据分析得出,周边地面沉降均在容许沉降范围内,因此砂性土地区堆山工程堆筑20多米山体时可采用天然地基进行堆筑,可为相关砂性土地区堆山工程地基处理提供类似参考。The artificial hill-pile project has the characteristics of large volume of earthwork,wide load distribution and long consolidation time.At the same time,due to the high requirements for the hill-pile engineering foundation,it is easy to cause the major engineering accidents such as the insufficient bearing capacity of foundation or insufficient shear strength of soil.Combined with the artificial hill-pile project in Zilang Park in the Central Innovation Zone of Nantong,through the analysis of geological conditions,the calculation of foundation bearing capacity and the observation of periphery surface settlement,the feasibility of using the natural foundation treatment scheme for the hill-pile project is studied.The analysis on the long-term observation data shows that the periphery surface settlement is all in the range of allowed settlement.Therefore,the natural foundation can be used to build the mountain more than 20meters for the hill-pile project in the sandy soil area,which provides some suggestions for the foundation treatment of the similar hill-pile projects in the sandy soil area.

关 键 词：砂性土 堆山工程 地基承载力 沉降观测 

分 类 号：TU433[建筑科学—岩土工程]