Even in the rude circumferential rim or wall of wax round a growing comb, flexures may sometimes be observed, corresponding in position to the planes of the rhombic basal plates of future cells.

即使生长中梳子围粗糙圆或蜡壁中，有时也可以观察到弯曲， 其位置与未来细胞菱形基底板平面相对应。

Far away in the circumferential wall a little doorway looked like heaven, and he set off in a wild rush for it.

环形墙远处， 一扇小门宛如天堂之门，他不顾一切地朝它冲去。

108) another sect, which mended matters with a jargon about " the Centre of Truth" : The reference is to another popular mystical sect whose followers believed that despite man's natural sinfulness, God retained him at the circumferential rim of Being.

108）另一个教派，用有关“真理中心”行话来解决问题：指是另一个流行神秘教派，其追随者相信，尽管人有天然罪性，但上帝将他保圆。

Moreover, the finite difference method based on the single-variable formulation is employed to solve the issue of discontinuous deformation at circumferential joints, simplifying the calculation on the Timoshenko beam model.

此外，采用基于单变量公式有限差分法解决了圆节理处不连续变形问题，简化了 Timoshenko 梁模型计算。

He stood up, went a pace or so toward the circumferential wall, turned, and went back a little way.

他站起身来，朝环形墙迈了一两步，又转过身，退回几步。

Figure 16B indicates the joint opening distribution of circumferential joints under joint reinforcement.

图 16B 显示了接缝加固下圆接缝接缝张开分布。

Figure 9A shows the opening of circumferential joints along the tunnel longitudinal direction.

图 9A 显示了沿隧道纵向圆接缝开口。

Each circumferential joint is modeled as a shearing spring and a rotation spring, taking into account the stiffness reduction at the circumferential joint.

每个圆节点都被建模为剪切弹簧和旋转弹簧，同时考虑了圆节点处刚度降低。

The prediction of TM-V solution is slightly larger than that of the proposed solution, because the Timoshenko beam takes no account of the stiffness reduction at circumferential joints.

TM-V 解预测略大于所提出解预测，因为 Timoshenko 梁没有考虑圆关节处刚度降低。

Compared to the traditional LECM, the proposed beam-spring model can reflect the shield tunnel deformation more veritably by considering the effect of circumferential joints.

与传统 LECM 模型相比，所提出梁-弹簧模型通过考虑环向节理影响，可以更真实地反映盾构隧道变形。

This model incorporates an improved subgrade modulus and treats each segmental ring as a Timoshenko short beam, with each circumferential joint modeled by two mechanical springs.

该模型采用了改进路基模量，并将每个节段环视为一个 Timoshenko 短梁，每个圆接头由两个机械弹簧建模。

Each segmental ring is treated as a Timoshenko beam, while the circumferential joints are represented by linear rotational and shearing springs.

每个节段环都被视为 Timoshenko 梁，而圆接头则由线性旋转弹簧和剪切弹簧表示。

As shown in Figure 1B, during the occurrence of longitudinal deformation in a shield tunnel, two distinct deformation patterns at the circumferential joints can be observed: dislocation and joint opening (or known as bending deformation).

如图 1B 所示，盾构隧道中发生纵向变形期间，可以圆接缝处观察到两种不同变形模式：错位和接缝张开（或称为弯曲变形）。

This model can indicate the dislocation between adjacent rings and opening at circumferential joints.

该模型可以指示相邻环之间位错和圆关节处开口。

This is because that the solution of joint reinforcement enhances the shearing stiffness of circumferential joints, which strengthens the ability of the tunnel joint to resist to dislocation.

这是因为节理加固解增强了环向节理抗剪刚度，从而增强了隧道节理抗错位能力。

For instance, in the construction of the new Metro Line 6 over the existing Metro Line 3 in Changsha, China, temporary circumferential joint reinforcement was adopted to alleviate the effects of overcrossing tunnelling on the existing shield tunnel.

例如，中国长沙现有地铁 3 号线上建设新地铁 6 号线时，采用了临时环状接缝加固，以减轻越界隧道对现有盾构隧道影响。

In contrast, the proposed solution is more reasonable and accurate, by taking complex interactions between internal forces and stiffness reduction at circumferential joints into account.

相比之下，所提出解决方案更加合理和准确，因为它考虑了内力和圆节点刚度折减之间复杂相互作用。

In this numerical simulation, 48 equidistant monitoring points are arranged in the inner circumferential direction of the tunnel lining, and the coordinate values of the monitoring points are extracted before and after deformation.

该数值模拟中，隧道衬砌内圆方向上布置了 48 个等距监测点，并提取了变形前后监测点坐标值。

Comparatively, circumferential joints between segmental rings are more pron to dislocation and rotation, resulting in the sharp deformation and steps.

相对而言，节段环之间圆节理更易发生位错和旋转，导致剧烈变形和台阶。

The stiffness of circumferential joint (, the rotation spring and shearing spring) is discussed in the following section.

圆运动类型（旋转弹簧和剪切弹簧）刚度将下一节中讨论。