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在建造某山区供水线路的300吨贮水池时,采用六角形预制混凝土块拼装成球壳池盖代替原设计的砖壳池盖。经过一年多的使用证明效果良好。原设计水池盖为12厘米厚砖壳(内抹1.5厘米水泥砂浆),外覆5厘米厚200号混凝土及素土保温层。但是,施工支模困难,壳内抹灰不易处理好,在长期潮湿条件下影响使用寿命。而且,因为自重及保温层荷重大。环梁亦耗费大量钢筋,如采用预制拼
In the construction of 300 tons of water storage tanks in a mountainous area water supply line, hexagonal precast concrete blocks were assembled into ball shell covers instead of the original design. After more than one year of use, it proved to be effective. The original design of the pool cover was a 12-cm-thick brick shell (with a 1.5-cm cement mortar inside), covered with 5 cm-thick 200-gauge concrete and prime soil insulation. However, the construction mold is difficult, and the plaster in the shell is not easy to handle, and it affects the service life under long-term wet conditions. Moreover, because of the heavy weight and insulation layer load. The ring beam also consumes a lot of rebar, such as prefabrication