一、前言管道因埋设方式不同(隧洞式、上埋式、沟理式),受力情况各异,垂直土压力的计算也截然有别。凡是先在地面构筑管道或洞室,然后在上面填筑士石方者,如埋设在路堤或河渠堤岸下的各种涵洞、涵管,土石坝下的泄水洞、廊道,尾矿坝下的排洪管道,以堆积或填埋方式修建的战备隐蔽通道、洞室等长宽比大于3～5的各类构筑物,统称上埋式管道。上埋式管道不仅使用广泛,数量众多,而且因本身属于隐蔽结构物,故对所属工程 First, the preface Pipelines buried by different ways (tunnel type, Buried, Gully type), the force situation varies, the calculation of vertical earth pressure is also very different. Anyone who constructs pipes or caverns on the ground and then fills Shi Shi Fang such as culverts, culverts, ditches, corridors and tailings dams buried under embankments or riverbank embankments Of the drainage channels to build or landfill built combat readiness concealed tunnels, caverns and other structures than the length and width ratio of 3 to 5, collectively referred to as buried pipe. On the buried pipe is not only widely used, a large number, but because of its own hidden structure, so the project