| The article studied the interaction between the foundation-pit and subway tunnel around andits stability based on the foundation-pit of Shenyang Friendship City.Geology surveying and engineering design were done for the project first. Then themonitorings of horizontal displacements for pile-top, vertical displacements, earth surfacesettlements, settlements for buildings around and tendency were finished for the foundation-pitbesides one subway tunnel. Ultimately, simulations of earth surface settlements, foundation-pit,space position of subway tunnel and transportation loads were implemented by finite elementsoftware ADINA. The results show: Horizontal displacements of the pile-top besides the subwaytunnel is small and stable, bi-row pile and circle beam supporting plays a key role but has a smallrestraint on the vertical load; The earth surface settlements become more and more large as theexcavation depth approaching the depth of the subway tunnel, and the settlement values have aabrupt increasing when depths are the same; Settlement values are more large while tendencyvalues are about zero for the building as it is close to the foundation-pit, while it’s oppositecompletely besides the "Basin side", and they will be all neglected beyond the influencing region;Displacements parallel to the subway tunnel are small, while they’re large perpendicularize to it;The relative space position between subway tunnel and foundation-pit has a big influence onthe stability, and the transportation loads are got simultaneously. |
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