大型基础中的无粘结部分预应力技术

Non-stick Partial Prestressed Technology Used in Large Foundation

近年来,我国已在一些重点工程中推广试用无粘结部分预应力技术。采用该技术,可缩短工期,减少土方量,节省钢筋及混凝土用量,施工机具简单轻小,操作人员少。本文介绍了该项技术的理论依据、工程结构特点、适用范围、材料、工艺原理、工艺流程、操作要求、质量标准等。

In recent years, the non-stick partial prestressed technology has been extended to the key projects in our country. By using this technology, working period can be shortened, amount of cubic meters of earth can be reduced, steel bar and concrete can be saved, eqnipment can be simplified and workers can also be minimized. This paper introduces the theory, special features, materials used, field of application, principle, flowsheet, quality specifications and operating requirements of this technology.