Increasing the archthrust augments the shear stress on the surface of the shearing resistance part, which counteracts the influence of the crushed rock.
同时由于拱向应力的增大,即增大了抗剪面剪应力,抵消了坝体下游破碎岩石的影响。
2
The non-abutment slant-legged rigid frame bridge is similar to mansard arch bridge, the soil pressure of the diagonal rod at both ends of bridge forms a couple of archthrust.
For high in situ stress occurred in Ertan dam area, combined action of initial in situ stress field, time and space effect during excavation and external loads archthrust etc.