基坑工程支护新技术及应用研究

基坑支护是基坑工程的重要组成部分,工程建设规模的扩大和建设速度的加快推动着基坑支护技术的蓬勃发展。近些年来涌现出一系列新型基坑支护技术,如双排桩支护技术、玻璃纤维土钉墙支护技术、预应力锚索支护技术及浆囊袋锚杆支护技术等新技术。本文简要介绍了这几种基坑支护新技术的基本工作原理、工程适用条件及工作特性等,期望对工程技术人员参加工程建设有所裨益,对基坑支护技术的创新发展有所帮助。

New supporting technologies for foundation pit engineeringand their applications

Supporting is an important part of foundation pit engineering. With scale expansion and speeding up of construction projects, the foundation pit supporting technologies are developing fast.A large number of new methods have emerged in the engineering construction to meet requirements of safety, economy and stability of the foundation pits, such as the double-row pile retaining technology of soil nailing walls, glass fiber technology, prestressed anchor technology and slurry bag bolting technology. This paper briefly introduces the basic working principles, engineering conditions and work characteristics of these technologies. It is expected that they would benefit the engineering and technical personnel to participate in construction, and help innovation and development in this field.