A Method for Determining Rigidity Matching of Underpass Railway Engineering

A railway engineering and stiffness technology, which is applied in the field of determining the stiffness matching of underpassing railway engineering, can solve the problems of unreasonable foundation reinforcement scheme, unsatisfactory reinforcement effect, and lack of design basis for the scheme, so as to reduce soil disturbance and reduce The effect of differential settlement of subgrade and low cost
CN105064314BInactive Publication Date: 2017-04-05TONGJI UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2017-04-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for determining stiffness matching of under-cross railway engineering. The method comprises the following steps that firstly, the engineering property of rock-soil bodies under a roadbed is determined, and then stiffness matching design is carried out in relevant areas with a tunnel as the center in the cross section direction of the tunnel. The method for stiffness matching design of shield under-cross railway engineering of soft soil areas is safe, reliable, scientific, reasonable and low in cost; through a reasonable partition scheme and the stiffness matching design, smooth transition of the structural stiffness is achieved, differential settlement of the roadbed can be effectively controlled, and safe operation of a train is guaranteed. The method guarantees stability of a tunnel face, and a shield is made to smoothly penetrate through the railway roadbed.
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Description

technical field

[0001] The invention belongs to the technical field of foundation engineering and relates to a method for determining the rigidity matching of an underpassing railway project. Background technique

[0002] With the continuous development of urban construction, the development direction of urban transportation has gradually shifted to underground space, and more and more subways and road tunnels have been constructed. Against such a background, there are more and more cases of shield tunnels passing through railways. However, shield tunneling will inevitably disturb the ground, causing large displacements of the soil and differential settlement of the subgrade, especially in soft soil areas, where this phenomenon is more prominent. The differential settlement of the subgrade will inevitably lead to the deformation of the track structure, affect the comfort of the train, and even threaten the safe operation of the train.

[0003] In order to ensure the safe o...

Claims

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