中文摘要：

为探明深部围岩压力作用下混凝土井壁的受力特征，将井筒周围不均匀侧压力分为均布荷载和非均布荷载两部分，利用叠加原理将两者对井筒受力的影响相加，获得井壁受力公式，并通过分析不同厚径比和不均匀侧压系数条件下井壁不同位置和极值点的受力变化，揭示了厚径比和不均匀侧压系数对井壁受力的影响规律，提出了相应的不均匀侧压条件下井壁结构设计计算的主要原则和程序，其可靠性得到了实际工程的检验。研究结果表明：不均匀侧压条件下井壁结构受力差异悬殊，且存在受力极值点；厚径比和不均匀侧压系数对井壁结构受力性质与大小影响很大，厚径比过小或不均匀侧压系数较大，均会导致极值点处出现拉应力；厚径比大于0.2时平衡井壁受力的效果才明显。实践表明，依据不出现拉应力和满足强度需求的原则确定井壁结构和材料的方法是合理可靠的。

英文摘要：

In order to find out the mechanical characteristics of concrete shaft lining under the action of deep surrounding rock, the lateral pressure around the shaft is divided into uniformly and non-uni-formly distributed loads, and the influences of the loads are superposed. The influences of thickness to diameter ratio and coefficient of non-uniform lateral pressure on the sidewall stress is revealed by the change of stress at different location and extreme point under different thickness to diameter ratio and coefficient of non-uniform lateral pressure. The main principles and procedures for the design and calculation of shaft lining under non-uniform lateral pressure was derived, and the reliability was verified by a practical engineering project. The results showed that the difference between stresses at different location of shaft-lining under non-uniform lateral pressure was great, and some extreme points could be found. The ratio of thickness to diameter and coefficient of non-homogeneous lateral pressure have a great influence on the mechanical properties of the structure and its size. A too small ratio of thickness to diameter or a large coefficient of lateral pressure can lead to tensile stress at the extreme points, and good balance between stresses of different parts can be observed when the thick-ness to diameter ratio is larger than 0.2 . The practice has proved that the method to determine the structure and material of shaft lining according to the principle of no tensile stress and enough inten-sity is reasonable and reliable.