Taking into account the special shaped tunnel,through the cement mortar layer and terrazzo surface layer of cement and gravel mixture ratio adjustment,and the experiment device for the self-developed special wind tunnel simulation,the actual situation,analysis of tensile experi-ment of terrazzo,experimental results and analysis show that the tunnel top,with terrazzo in appropriate ratio to ensure adhesion enough,to pro-duce significant damage,the quality requirements to reach the top shaped tunnel terrazzo.%考虑到异形风洞的特殊性，对水泥砂浆层及水磨石面层中水泥和碎石配合比进行了调整，并采用自行研制的针对性的实验装置，模拟异形风洞内部特殊的地形条件，对水磨石进行反复的抗拉实验分析，实验和分析结果表明，异形风洞顶部水磨石在合适的配合比下能够保证有足够的粘连性，未产生明显的破坏，能够达到异形风洞顶部水磨石的质量要求。
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