【摘要】 面对重力注浆土钉的一些不足,提出了高压注浆土钉,并对它的一些特性作了一些探讨。通过土钉抗拔力学模型探讨了高压注浆土钉的抗拔荷载传递机理,简单介绍了其施工工艺。从土钉长度、抗拔安全系数、界面粘结强度、抗滑稳定性等方面说明了高压注浆土钉的优越性,并从实例分析证明其可行性。更多还原

【Abstract】 Aiming at the disadvantages of gravity grouting soil nailing,high-pressure grouting soil nailing is introduced in this paper,and its characteristics are discussed. Based on mechanics model of pullout,the transfer mechanism of pullout load of high-pressure grouting soil nailing is discussed. Moreover,the construction process is briefly presented. High-pressure grouting soil nailing has advantages in many aspects,including length of soil nailing,security coefficient of pull strength,bond strength of interface,stability against sliding. Its feasibility is proved in project example.更多还原