摘要
广州市西江引水工程管径大、压力高,且为双管同槽敷设。主管材采用预应力钢筒混凝土管(PCCP)。管道沿线多为淤泥质软土,强度低,压缩性高,流变性强,易产生地基沉降。对其主管材(PCCP)在软土地基中的沉降进行了分析,论述了管道在运行过程中的荷载变化以及容易引起地基沉降的一些因素,说明了地基处理的必要性,并根据管道沿线软土地基的具体情况,对西江引水工程中所采用的几种地基处理方法作了详细介绍,可供类似工程参考。
Guangzhou Xijiang River water diversion project has big pipeline diameter, high pressure and two pipes are laid in the same trench. The main pipe material is prestressed concrete cylinder pipe （PCCP）. The soil along the pipeline is mainly silt soft soil with low strength, high compressibility and high flowability, which easily leads to foundation settlement. The settlement of PCCP in soft soil foundation is analyzed. The load change of the pipeline during operation and factors contributing to the settlement are discussed, and the necessity of the treatment of foundation is explained. Based on the specific circumstances of soft soil foundation along the pipeline, several treatment measures taken in Xijiang River water diversion project are introduced to provide reference for the similar projects.
出处
《中国给水排水》
CAS
CSCD
北大核心
2012年第2期1-4,13,共5页
China Water & Wastewater
关键词
大口径PCCP
软土地基
沉降分析
处理措施
large diameter prestressed concrete cylinder pipe （PCCP）
soft soil foundation
settlement analysis
treatment measures
