人工挖孔扩底桩在跨铁路线建筑中的应用

Hand-dug pile building railway lines in the Cross-application

人工挖孔扩底桩是一种成熟的桩基形式,但该桩型很少应用于跨铁路线建筑基础工程中。在多数工业建筑中,跨铁路线建筑独立基础的施工多采用机械大开挖,且为保证铁路线上火车的正常运行,必须采取较常用的轨道架空技术,而该技术存在耗资大、施工周期长等诸多弊端。此文根据工程实例,对人工挖孔扩底桩在跨铁路线建筑中的成功应用进行了交流。

Hand-dug pile foundation is a mature form, but it is rarely used in cross-pile type of construction based on the railway line project. In most industrial buildings, railway lines cross the construction of building an independent basis for the use of large excavation machinery and railway line in order to ensure the normal operation of the train, we must adopt a more commonly used in overhead track technology, andthe existence of the technology cost, and the construction cycle long, and many other defects. In this paper, examples of the works on hand-dug hole pile cross-railway lines in the success of building applications and we look to the exchange.