毗邻高层建筑的深基坑开挖和支护

对于毗邻高层建筑的深基坑工程,结合场地勘察、场地地质、水文条件及邻近建筑物情况,对基坑开挖、支护及降水进行合理的方案设计.通过方案比选,采用基坑顶部2m下桩锚支护,并加设水平钢管支撑,严格进行边坡位移及邻近建筑物的沉降、倾斜监测,积极采取质量控制措施等,保证了深基坑施工的工程质量和邻近建筑物、市政管线的安全.

Excavation and Supporting of Deep Foundation Pit Adjacent to High-rise Building

Based on some deep foundation pit engineering adjacent to high-rise building,construction schemes about excavation,supporting and dewatering are designed reasonably combining with site investigation,geology,hydrological condition and adjacent buildings condition.By construction scheme comparison,some construction measures are adopted to ensure construction quality of deep foundation pit and safety of adjacent buildings and urban pipelines,such as supporting with piles and anchors at points two meters below top of foundation pit,setting horizontal steel pipes as supporting,monitoring slop displacement and settlement and inclining of adjacent buildings,as well as taking quality control measures.