An Optimal Design Method for Retaining Wall Considering Earthquake Action
An optimized design and retaining wall technology, applied in special data processing applications, buildings, artificial islands, etc., can solve problems such as blocking disaster relief channels, loss of life and property, overturning, etc., to avoid waste, ensure safety, and take into account economy Effect
Active Publication Date: 2020-04-28
LIAONING TECHNICAL UNIVERSITY
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[0003] After the earthquake disaster investigation and research, it was found that many retaining walls were damaged to varying degrees after the earthquake. The light ones were displaced and cracked, and the severe ones were completely overturned, blocking the disaster relief channel and causing serious loss of life and property.
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[0036] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0037] In this embodiment, as figure 1 The height of a certain wall shown is 6m, the back of the wall is vertical and smooth, and the filling soil behind the wall is horizontal, and it is built with rubble and M2.5 cement mortar; the weight of the masonry γ=22KN / m 3 , the filling soil behind the wall is sandy soil, and the weight of the filling soil behind the wall γ’=19KN / m 3 , the internal friction angle of the fill behind the wall Taking a retaining wall with a base friction coefficient μ=0.5 as an example, the retaining wall is designed using the optimal design method for a retaining wall considering earthquake action of the present invention.
[0038] An optimal d...
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The invention provides a retaining wall optimization design method considering the earthquake action, and relates to the technical field of geotechnical engineering retaining wall design. According tothe method, earthquake acting force of a retaining wall is calculated firstly, then the retaining wall is divided into a triangular part and a rectangular part, and a relation between the wall top width and the wall bottom width of the retaining wall is obtained according to the anti-slip stability checking calculation requirement of the retaining wall; the difference between the wall top width and the wall bottom width of the retaining wall is further obtained according to the anti-overturning stability checking calculation requirement of the retaining wall; and finally, checking of the bearing capacity of a foundation of the retaining wall is carried out with the combination of geological data of geotechnical engineering investigation, the strength of the wall body of the retaining wallis calculated with the combination of the wall body material mechanical property indexes, and the design of the retaining wall is completed. According to the retaining wall optimization design methodconsidering the earthquake action, the multi-round repeated checking calculation after the parameters is modified is not needed, so that the safety of the retaining wall is guaranteed, the economy ofthe retaining wall is also considered, and the common waste phenomenon of a traditional retaining wall design method is avoided.
Description
technical field [0001] The invention relates to the technical field of geotechnical engineering retaining wall design, in particular to an optimal design method for retaining walls considering earthquake action. Background technique [0002] Retaining wall is a common structure in civil engineering, and its main function is to prevent the collapse of rock and soil. The traditional retaining wall design is to use the trial algorithm, first determine the basic size of the retaining wall, and then carry out the calculation of earth pressure, check calculation of the retaining wall's anti-overturning stability, check calculation of anti-slip stability, check calculation of foundation bearing capacity, wall Body strength check, etc. This method often requires multiple calculations. Once a certain step fails to pass the check calculation, the size of the retaining wall must be modified and the next round of check calculation must be performed again. Therefore, the workload of des...
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IPC IPC(8): E02D29/02G06F30/13
CPCE02D29/02G06F30/13
Inventor 苏丽娟刘家顺刘海卿孙庆巍刘淼金佳旭
Owner LIAONING TECHNICAL UNIVERSITY