大口径长距离顶管施工顶进推力过大是困扰顶管施工多年的技术难题。
The construction of Pipe Jacking is beset with difficulty due to the large propulsive force for several years.
在经过初步的计算之后，发现该结构的原设计方案存在刚度不足及两端推力过大等问题。
After preliminary calculating, some imperfections of the former design in this structure, such as weak stiffness, large horizontal force at both end supports and so on, were found.
在经过初步的计算之后，发现该结构的原设计方案存在刚度不足及两端推力过大等问题。
After preliminary calculating, some imperfections of the former design in this structure, such as weak stiffness, large horizontal force at both end supports and so on, were found.
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