陈方庆      （齐鲁石油化工工程公司  淄博 255411）

[提要]  山东省兖州市污水处理工程是国家实施淮河流域治污、南水北调战略东线工程的重要组成部分，采用吸附-生物氧化二级处理法。其污泥消化池内含混合泥浆沼气，侧压力大，构筑物整体采用后张无粘结预应力技术，在较好地满足使用功能要求的前提下成功地降低了工程成本。
[关键词]  后张  无粘结  钢绞线  标准值  屈服强度

In the project of pollution control in Huaihe valley and the eastern line of trans ferring water from south to north strategy,  the sewage disposal item in Yanzhou city is an important portion. In this item, we adpoted the absorption and secondary bio-oxigenation technique. Methane is produced during the mud dispose process, which would exert high side pressure to the pool. In the construction of the pool, the integral post-tensioned prestressed technique is used to cut down the expense.This experience is a good exploration in the improvement of this technique.
Keywords:  post-tensioned;  unbonded;  tendon; standard value; yield strength