摘要
由于基坑施工对地层产生了扰动,基坑内外土层土应力的重分布,可能会引起支护结构、地表及附近土层的变形或沉陷,危及基坑结构的稳定和附近建(构)筑物、地下管线的安全,因此基坑监测是一项保证基坑安全不可缺少的必要工作。本文结合工程实例,对基坑监测变形值超预警值的原因进行了详细分析并提出了处理办法。
The surrounding strata is disturbed by pit construction, causing geostress redistribution between the inside and outside soils of foundation ditch, which may lead to deformation and settlement of retaining structures, the surface and the surrounding strata, threaten the stability of pit structure and the security of adjacent building and underground pipeline. Therefore, foundation pit monitoring is essential to ensure the security of foundation excavation. Combined with practical instances, the cause of deformation exceeding the early warning value for foundation pit is analyzed and the treatment measure is suggested.
出处
《广州建筑》
2014年第1期29-32,共4页
GUANGZHOU ARCHITECTURE
关键词
基坑
深层位移
监测
预警值
加固
foundation pit
deep displacement
monitoring
early warning value
reinforce
