Title:
CALCULATION METHOD FOR ALLOWABLE STRESS AND SETTLEMENT OF IMPROVED GROUND MAKING USE OF SOUNDING TEST
Document Type and Number:
Japanese Patent JP3963139
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a theoretical formula for an allowable stress of an improved ground in consideration of influences on depth up to the foundation bottom from the ground surface, the ground water surface and a lower soil layer of the improved ground bottom for calculating the allowable stress of the improved ground making use of a sounding test.
SOLUTION: In an analysis method for the allowable stress of the improved ground, the allowable stress is calculated by making use of a ground strength analysis method. In a ground deformation analysis method, the allowable stress is regarded as external force, the settlement and the consolidation settlement are immediately calculated, and the allowable stress, making deformation not higher than the allowable settlement occur, is adopted as the allowable stress of the improved ground. In the case where the allowable stress can make deformation in excess of the allowable settlement occur, the value reducing the allowable stress is adopted as external force, the settlement is calculated to repeat the calculation until the value reaches not higher than that of the allowable settlement, and the allowable stress of the improved ground can be decided.
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Inventors:
Hiroyoshi Hirai
Application Number:
JP2002239977A
Publication Date:
August 22, 2007
Filing Date:
August 20, 2002
Export Citation:
Assignee:
Ochiken Co., Ltd.
International Classes:
E02D1/00; (IPC1-7): E02D1/00
Other References:
平井弘義他1名,サウンディング試験を用いた地盤の許容応力度の算定法に関する一提案,日本建築学会構造系論文集,日本建築学会,2002年 7月30日,第557号,P.113-120
建築物のための改良地盤の設計及び品質管理指針,財団法人日本建築センター,1997年 7月 1日,第1版第1刷,P.48-57,P106-108
建築基礎構造設計指針,社団法人日本建築学会,2002年 4月15日,第2版第2刷,P.123-166,P230-232
Palmer,L.A.andBarber,E.S.,Soil Displacement under a Circular Loaded Area,Proc.Highway Res. Board,米国,Highway Res. Board,1940年,Vol.20,P.279-286
建築物のための改良地盤の設計及び品質管理指針,財団法人日本建築センター,1997年 7月 1日,第1版第1刷,P.48-57,P106-108
建築基礎構造設計指針,社団法人日本建築学会,2002年 4月15日,第2版第2刷,P.123-166,P230-232
Palmer,L.A.andBarber,E.S.,Soil Displacement under a Circular Loaded Area,Proc.Highway Res. Board,米国,Highway Res. Board,1940年,Vol.20,P.279-286
Attorney, Agent or Firm:
Hiroshi Dobashi