abutment of arch dam的用法和样例：
- Gravity abutment of arch dam;
- The unstable rock body with syncline structure on the right abutment of Danjiang arch dam are analyzed under the thrust from arch dam.
- Considering that the right abutment of Dongping arch dam is located at a narrow massif with high ground water, the problems about reservoir leakage and dam abutment stability are concerned with.
- The stability of arch dam against elastic buckling has always been ignored.