近年来混凝土锚固技术在我国建筑业及市政工程中应用日趋广泛，特别是在建筑翻新、建筑用途的改变、建筑抗震加固和设备安装、桥梁加固以及隧道、港口、码头、地下结构、幕墙施工项目中，混凝土锚固技术以其高效、灵活、经济等性能，倍受工程界的青睐，因此充分理解锚固系统的力学机理对于工程设计至关重要。目前对植筋锚杆的研究大多是以工程应用为目的，对植筋锚杆受力机理、粘结滑移性能以及失效模式的关注较少，急需对其进行科学系统的深入研究。本文通过理论分析、试验研究，着重研究了植筋锚杆锚固系统中界面的粘结滑移性能、应力传递规律以及极限抗拔承载力和合理孔径比。取得以下主要成果： 基于钢筋表面形态建立了混凝土中植筋锚杆荷载传递的剪胀滑移模型，采用荷载传递函数法，建立弹塑性理论空间模型，得到了植筋锚杆轴力和剪应力沿锚固长度分布的理论解，并对影响锚固效果的因素进行了系统分析。 根据拉拔试验分别分析了螺纹钢和圆钢的破坏过程，并应用声发射检测技术，指出粘结滑移的声发射能量特征与荷载滑移呈同步变化关系，验证分析了植筋锚杆拉拔破坏过程。通过螺纹钢与圆钢拉拔试验研究，得到了沿锚固长度的应力分布规律，并与理论结果进行对比分析，吻合较好。根据理论计算公式，指出影响锚固效果的因素为：钢筋表面粗糙度、锚固直径、周围介质强度等，并结合试验数据，运用最小二乘法进行曲线拟合，分别得出粘结强度与各影响因素之间的具体关系式。 针对试验现场出现的粘结破坏和锥体—粘结破坏两种不同形式，分别给出了极限抗拔承载力的计算公式。依据锥体—粘结破坏时的破裂面状态特征和极限平衡原理，推导出了能够综合考虑破裂面形状、基体抗拉强度以及侧压力和灌浆压力等因素的极限抗拉拔承载力计算公式，并与试验结果进行了对比分析，吻合较好。以剪胀滑移理论为基础，通过运用弹性力学轴对称问题应力解得锚固层开裂判据，并对合理孔径比进行了理论分析，得出孔径比的合理范围。

In recent years,anchorage technique of the concrete is increasingly wide applicated in construction and municipal engineering, especially in building renovation, building USES of change, building seismic strengthening and equipment installation, of bridge reinforcement and tunnels, ports, docks, underground structure, curtain wall construction projects, concrete anchorage techniques to its high efficiency, flexible, economic and other properties, highly engineering's favour, so fully understand the anchor system dynamic mechanism for engineering design is very important. At present the studies of planting-bar anchor mostly in engineering application for the purpose, the stress of planting-bar mechanism, the bond-slip behavior and failure modes, less attention, need of its scientific system research. This article through theoretical analysis and experimental research, this paper studies the anchor system of planting-bar bond-slip behavior, of the interface stress transfer laws and ultimate bearing capacity and pull resistance than reasonable aperture. Obtain the following important achievements: Based on the established concrete reinforced surface morphology of planting-bar bolt load transfer dilatancy sliding model, adopts load transfer function method, establish elastic-plastic theory space model, got planting-bar anchor axial force and shear stress along anchor length distribution, the theoretical solution,and the factors affecting anchoring effect the system analysis. According to pull out tests the failure process of round and rebar steel are analyzed, and application of acoustic emission testing technology, pointed out the changing relations in sync between the acoustic emission energy slippage with the load characteristics of slippage, validation planting-bar anchor analyzed drawing failure process. Through rebar and round steel pull out tests,the stress distribution of along anchorage length was obtained, and a comparative analysis of the theoretical results and a good coincidence. According to the calculation formulas of the theory, the factors influencing anchoring effect for: reinforced the surface roughness, anchor diameter, the surrounding media strength etc, and with the test data, using the least squares on the curve fitting, obtained respectively the specific equation between bonding strength and affecting factors. The test site appear bonding destruction and cone - bond destruction two different forms, are given respectively limit resistance formula of bearing capacity of pull. According to the destruction cone - bond failure surface condition characteristic and limit equilibrium theory, deduced to comprehensive consideration of the fracture surface shape, matrix tensile strength and the lateral pressure and grouting pressure the limits of such factors as drawing resistance, the calculation formulas of the bearing capacity and test results and analyzed, a good coincidence.With dilatancy sliding theory as a foundation, by using elastic mechanics axisymmetric problems stress given the anchorage layer crack criterion, and maked a theoretical analysis to the reasonable aperture, obtained the reasonable scope than aperture.