压力扩散角轮胎行车向着地长度轮胎着地宽度两轮中心距类型分界深度轮压传到管顶压强PHαLpzpsPHαa2b2c1－qBkNm°mkPkPkNm°mmmmkP1407308.0832.731751407300.20.61.81.0393.221406306.9283.721501406300.20.61.81.0394.211405305.7745.351251405300.20.61.81.0395.731404304.6198.361001404300.20.61.81.0398.281403303.46414.86751403300.20.61.81.03913.031402302.30933.44501402300.20.61.81.03923.691401301.155133.76251401300.20.61.81.03958.90覆土厚度-压力关系曲线70.0 60.0 管顶压强（kPa）50.0 40.0 30.0 20.0 10.0 10.0 0.0 02468涵管覆土厚度（m）履带单位长度上压力
qkPa2020202020履带拖拉机埋置深度
Hm76543压力扩散角α
°3030303030履带宽度b2m0.30.30.30.30.3两履带中心距c0m1.81.81.81.81.8类型分界深度－m1.2991.2991.2991.2991.299轮压传到管顶压强
qB
kP
3.93
4.43
5.08
5.95
7.19
20202130300.30.31.81.81.2991.2999.07
13.75
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