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1·According to actual condition, the strengthening scheme of the crane girder has been brought forward.

根据工程实际情况，提出了吊车梁的加固方案。

2·Based on this, the stability of the surrounding rock mass and the rock wall crane girder is evaluated.

在此基础上，对洞室围岩及岩壁吊车梁的稳定性进行了评价。

3·The further excavation of underground powerhouse will affect the stress distribution of system bolts and rock mass near crane girder.

地下厂房的继续开挖对于吊车梁系统锚杆和周围岩体的应力分布有较大影响。

4·It is an effective method to carry out regularly inspection on steel crane girder structures in order to prevent from fatigue failure.

对在役钢结构吊车梁进行定期、不定期的检查是避免发生疲劳失效的最有效方法。

5·The working performance and stability of the rock bolt crane girder has always being an important problem in project design and construction.

岩锚吊车梁在施工及运行期的工作性态和稳定性是工程设计和施工中所关注的主要问题之一。

6·The methods of calculation for the structural stability of rock-bolted crane girder include the rigid equilibrium method and the finite element method.

岩锚吊车梁结构稳定计算所普遍采用的方法有刚体平衡法和有限单元法。

7·Through bearing capacity test and quite a long period of operation, the structure and anchorage measures of concrete crane girder are proved to be reasonable.

通过承载试验成果及一段时间的运行表明，岩壁吊车梁体形及锚固措施设计是合理的。

8·The rock bolt crane girder is an advanced structure which has played and will play continuously important roles in the construction of hydropower plant in China.

水电站地下厂房岩锚吊车梁是一种先进的结构形式 ，已在我国水电工程建设中发挥了重要作用 ，并且还将会发挥越来越重要的作用。

9·The research shows that stress level of the crane structure is low and crane girder has large enough strength margin to assure the safety of using crane under extended service.

研究结果表明门机结构总体应力水平较低，严重受力件主梁具有较大的强度富裕度，可以保证超期服役的安全性。

10·The paper discussed the sectionalization, the method for finding equation and the drawing of the envelope graph of bending moments of the simple crane girder under the action of crane loads.

论述了在吊车荷载作用下的简支吊车梁的弯矩包络图的分段、方程求法，最后通过实例说明包络图的绘制。