Calculation method of vertical earth pressure and deformation of high filled steel bellows culvert
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A technology of corrugated pipe culverts and calculation methods, applied in computer-aided design, calculation, special data processing applications, etc.
Active Publication Date: 2019-01-04
ZHENGZHOU UNIVERSITY OF AERONAUTICS
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[0006]
In order to solve the problem in the prior art that there is no corresponding earth pressure calculation method for the structural design of steel bellows culvert
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[0059] Since 2006, after 12 years, the inventor has carried out a large amount of data collection and research on high-fill culverts, field tests and load reduction applications of 8 concrete rigid culvert projects, field tests of 3 steel corrugated pipe culvert projects, The vertical earth pressure calculation formula and the corresponding vertical convergence deformation calculation formula are respectively proposed for the conventional filling (without load reduction technology) and the top-buried steel bellows culvert with load reduction technology (such as laying EPS boards). In order to achieve the purpose of application, for the load reduction technology, the application design method of the load reduction material EPS board is also proposed. The test shows that the calculation result of the formula of the present invention can reflect the actual engineering situation, and the load reduction technology can not only reduce the vertical earth pressure on the top of the pip...
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Abstract
The invention discloses a method for calculating vertical earth pressure and deformation of high-filled steel bellows culvert. Based on the consideration of vertical convergence deformation of steel bellows, the calculation method of vertical earth pressure of steel bellows culvert without load relief technique and the calculation method of vertical convergence deformation of steel bellows culvertwith load relief technique are proposed from the settlement of soil column in the plane of pipe top. The calculation method of vertical earth pressure of steel bellows culvert and the calculation method of vertical convergence deformation of pipe culvert with load relief technique are presented. The present invention can provide earth pressure calculation method for steel bellows pipe culvert design after conventional filling or load reduction measures under high fill, and also provides calculation method for vertical convergence deformation of pipe culvert. The earth pressure and deformationcalculation result are consistent with the actual situation, and the calculation method fills in the blank in the field at home and abroad. The load reduction design method provided by the inventioncan effectively reduce the vertical earth pressure on the culvert top, prevent the pipe culvert structure from producing large deformation, and simultaneously protect the safety and stability of the culvert structure.
Description
technical field [0001] The invention relates to the field of geotechnical and underground engineering, in particular to a method for calculating vertical earth pressure and a method for calculating deformation of a high-fill steel corrugated pipe culvert, which is applicable to highways, railways, water conservancy, airports, mines, electric power, municipal administration, ports, military industries, etc. Steel corrugated pipe culvert structures in the field of engineering infrastructure construction can be used as drainage culverts, traffic or passage culverts under embankments or dikes, flood discharge culverts, maintenance culverts, corridors, and drainage culverts under dams and tailings ponds. aisle. Background technique [0002] The culverts under high fill are mostly buried structures, which are widely used in infrastructure construction such as roads, railways, airports, mines, water conservancy, electric power, municipal administration, ports, and military industri...
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