条形基础 c=0, φ=30°, γ=18, B=2 m, Df=1 m → q_ult ≈ 613.2 kPa Nq≈18.40,Nc≈30.14,Nγ≈15.67,q=18 kPa。q_ult = 0 + 331.22 + 282.02 ≈ 613.24 kPa。{"result":"Terzaghi bearing capacity (strip footing), c=0 kPa, φ=30°, γ=18 kN/m³, B=2 m, Df=1 m. Nc = 30.1396, Nq = 18.4011, Nγ = 15.6680. sc = 1, sq = 1, sγ = 1. Cohesion term = 0.00 kPa, surcharge term = 331.22 kPa, self-weight term = 282.02 kPa. Ultimate q_ult = 613.24 kPa.","metadata":{"input":{"shape":"strip","c":0,"phi":30,"gamma":18,"B":2,"Df":1},"result":{"shape":"strip","Nc":30.1396,"Nq":18.4011,"Ngamma":15.6680,"sc":1,"sq":1,"sgamma":1,"surcharge":18,"cohesionTerm":0,"surchargeTerm":331.2202,"weightTerm":282.0247,"ultimateCapacity":613.2449,"ultimateCapacityUnit":"kPa"}}}
方形基础 c=20, φ=25°, γ=19, B=2 m, Df=1.5 m → q_ult ≈ 945.4 kPa Nq≈10.66, Nc≈20.72, Nγ≈6.77, q=28.5 kPa。三项分别 ≈ 538.73 + 303.87 + 102.84 = 945.44 kPa。{"result":"Terzaghi bearing capacity (square footing), c=20 kPa, φ=25°, γ=19 kN/m³, B=2 m, Df=1.5 m. Nc = 20.7205, Nq = 10.6621, Nγ = 6.7655. sc = 1.3, sq = 1, sγ = 0.8. Cohesion term = 538.73 kPa, surcharge term = 303.87 kPa, self-weight term = 102.84 kPa. Ultimate q_ult = 945.44 kPa.","metadata":{"input":{"shape":"square","c":20,"phi":25,"gamma":19,"B":2,"Df":1.5},"result":{"shape":"square","Nc":20.7205,"Nq":10.6621,"Ngamma":6.7655,"sc":1.3,"sq":1,"sgamma":0.8,"surcharge":28.5,"cohesionTerm":538.7338,"surchargeTerm":303.8711,"weightTerm":102.8357,"ultimateCapacity":945.4405,"ultimateCapacityUnit":"kPa"}}}