soffit

n. 拱圈内面, 拱腹

n. 拱腹；下端背面

1. Calculated results show that, the deformation of crown, springing and soffit around the tunnel face, and the plastic zone of the surrounding rock masses increase obviously with release of in-situ stress.
   计算结果显示：随着地应力释放值增加，隧道开挖面洞周拱顶、拱底、拱腰变形增大，围岩塑性区明显扩大，由稳定状态向不稳定状态转化；
2. Reason of soffit fracture and the reinforce measures
   檐口板断裂的原因及加固措施
3. Relationship between compressive strength and soffit form of a mortar cubic
   在济贫形式方面。砂浆立方体抗压强度与底模的关系
4. Based on the comparison, the optimal method to reinforce the full-web arch bridge is wrapping reinforced concrete strips on the arch soffit.
   对实腹式拱桥，通过数值分析对比研究，优选出了从拱腹采用钢筋混凝土条带外包加固的方法。
5. If the validity of vertical prestress can be guaranteed effectively, the principal tensile stress can also be inhibited;( 4) Parametric analysis is taken on web thickness, beam height and the soffit curve of the main girder.
   若能保证竖向预应力的有效性，能有效抑制主拉应力的产生。（4）对主梁腹板厚度、梁高及变化规律进行参数化分析。