土方机械.履带式机械用平均对地接触压力的测定

[中文适用范围]： 本国际标准规定了计算 ISO 6165 中定义的自走式和牵引式履带式（履带式）土方机械在空设备或附件的软表面上的平均地面接触压力的统一方法。 平均接地压力值仅用于比较不同机器型号。 操作条件下的实际接地压力值将根据负载、重心位置、地形、履带板类型和尺寸以及表面条件而变化。 注 1：确定地面接触压力的替代方法可适用于某些特定的机器系列。 注 2：计算考虑了对支撑土壤表面的一些渗透以及由此导致的支撑面积的增加。 [外文原描述]： ISO 16754:2008 specifies a uniform method for calculating the average ground contact pressure of self-propelled and towed crawler (track-laying) earth-moving machines, as defined in ISO 6165, on soft surfaces with empty equipment or attachment. The average ground contact pressure value is used only for comparing different machine models. Actual ground contact pressure values under operating conditions will vary depending on load, position of the centre of gravity, terrain, track shoe type and size, and surface conditions. Alternative methods for determining ground contact pressure could apply to some specific machine families.