Method for calculating line load of liquefied soil layer acting on pile foundation in earthquake field
A calculation method and line load technology, applied in the fields of marine geological engineering, port engineering, and geotechnical engineering, can solve problems such as no clear regulations, and achieve the effect of guiding engineering design reasonably and effectively
Pending Publication Date: 2021-11-30
CHINA COMM CONSTR FIRST HARBOR CONSULTANTS
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Problems solved by technology
At present, there are no clear regulations on how to determine the force exerted by the liquefied soil layer and the non-liquefied soil layer on the pile in domestic and foreign codes.
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[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by ordinary persons in the art without creative efforts belong to the protection scope of the present invention.
[0021] The line load calculation method of the earthquake liquefaction site soil layer acting on the pile foundation of the present invention comprises the following steps:
[0022] A. According to JTS146-2012 "Code for Seismic Design of Water Transport Engineering", the site is judged for earthquake liquefaction. If it is judged as a liquefied site, the bottom depth of the liquefied soil layer is obtained according to the judgment result h 2 , at the same time, the thickness h of the non-liquefied overburden layer on the lique...
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The invention discloses a method for calculating a line load of a soil layer of an earthquake liquefied field acting on a pile foundation, which comprises the following steps: carrying out earthquake liquefaction judgment on the field according to JTS146-2012 Seismic Design Specification for Water Transport Engineering, if the field is judged to be a liquefied field, obtaining the bottom burial depth h2 of the liquefied soil layer according to the judgment result, and simultaneously obtaining the thickness h1 of a non-liquefied covering layer on the liquefied soil layer; calculating liquefied soil pressure acting on the pile foundation by different burial depth points of the soil layer of the liquefied field; and calculating the linear load of the soil layer of the liquefied field acting on the pile foundation. According to the method, when site sandy soil is liquefied in the earthquake process, the line load of a site soil layer acting on the pile foundation structure is considered. According to the calculation method, engineering design is guided to be more reasonable and effective, and the blank of related fields is filled.
Description
technical field [0001] The invention relates to the fields of marine geological engineering, geotechnical engineering and port engineering, in particular to a calculation method for determining the line load of an earthquake liquefied soil layer acting on a pile foundation. Background technique [0002] When the site is liquefied by an earthquake, the strength of the liquefied soil quickly drops to almost nothing, and the liquefied soil layer will flow, and the flowing liquefied soil layer and its overlying non-liquefied soil layer will exert force on the pile foundation. In port pile foundation engineering and bridge engineering, there have been many cases of overturning pile foundation structures in earthquake liquefied soil layers. At present, there are no clear regulations on how to determine the force of the liquefied soil layer and the non-liquefied soil layer on the pile in domestic and foreign codes. Contents of the invention [0003] The technical problem to be s...
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IPC IPC(8): G06F30/13G06F30/20
CPCG06F30/13G06F30/20
Inventor 叶祥记季则舟曹煜赵鑫文藻
Owner CHINA COMM CONSTR FIRST HARBOR CONSULTANTS