破裂角的确定及其对土压力计算的适用性分析

Determination of the Rupture Angle and Its Applicability to the Calculation of Earth Pressure

在使用朗肯或库伦理论设计挡土墙土压力计算时,都涉及到一个非常重要的因素,即土体破裂角的确定,破裂角的确定对挡土墙土压力分析和计算具有十分重要的意义。依据在长期地质灾害治理工程设计中总结的经验,结合常用挡土墙设计中遇到的几种不同情况,以实例剖析解释了破裂角的概念,分析和探论了破裂角的确定及其对挡土墙土压力设计的适用性,提出了在挡土墙设计中,根据不同场景条件确定防护土体破裂角的方法。

When the Rankine or Coulomb theory is used to calculate the earth pressure of the retaining wall, a very important factor-the rupture angle will be involved. The determination of the rapture angle is very important to calculate and analyze the earth pressure on the retaining wall. Based on the experiences from the long-term geological disaster control engineering, as well as several different situations encountered in the design of common retaining wall, the determination of the rupture angle and its applicability to the earth pressure design of retaining wall is analyzed and discussed, and the concept of the rupture angle is explained by examples. The method of determining the rupture angle of the protective soil is proposed in different site conditions when to design the retaining wall.