天然土层的英文

英文翻译手机版

"天然"英文翻译 natural; native; living
"土层"英文翻译 solum; true soil; pedosphere ...
"天然土" 英文翻译 : natural earth; natural soil
"天然土地" 英文翻译 : natural land
"天然土机场" 英文翻译 : natural ground airfield
"天然土块" 英文翻译 : ped
"天然土路" 英文翻译 : dirt road; natural soil road; primitive road
"天然土路面" 英文翻译 : natural earth surface
"天然土壤" 英文翻译 : natural soil
"天然土釉" 英文翻译 : loam glaze
"原土；底土；天然土" 英文翻译 : natural soil
"天然土壤改良剂" 英文翻译 : natural soil conditioner
"土层" 英文翻译 : solum; true soil; pedosphere; soillayer; soil horizon; soil layer
"自然土壤" 英文翻译 : natural soil
"表土层" 英文翻译 : a horizon; ahorizon; epipedon; grass roots; ledge finder; mantle of rock; mantle soil; overburdening; pedosphere; soil cap; surface of the soil; surface soil layer; veneer of soils
"底土层" 英文翻译 : chorizon; ground layer; substratum
"冻土层" 英文翻译 : frozen soil layer; tjaele; tundra
"粉土层" 英文翻译 : silt seam; silt-seam
"浮土层" 英文翻译 : mantle rock
"覆土层" 英文翻译 : overbarden; overburden layer
"根土层" 英文翻译 : rootlet bed
"古土层" 英文翻译 : duricrust
"黑土层" 英文翻译 : mollic
"活土层" 英文翻译 : active layer
"泥土层" 英文翻译 : dirt bed; dirty bed

The several ones that have more lager sensitivity to embankment settlement are found out . then , aimed at the traditional three - layer bp network ' s shortages : easily getting into local minimum value and slow convergence , the modification combined momentum method with self - adaptation study velocity is made , and one improved bp network is put forward . finally , according to the results from above sensitivity analyses , the nonlinear model main parameters of each natural layer in roadbed are approximately rectified using the improved bp network technology founded on its stronger nonlinear mapping capacity and the settlement measurements
采用非线性有限元程序，对邓肯-张模型中8个参数与路堤沉降的关系进行了详细分析，找到了影响沉降的主要参数；接着，针对传统的三层bp网络具有收敛速度慢、易陷入局部极小点等不足，对其进行了修正，提出了改进的bp神经网络模型；最后，根据上述灵敏度分析结果，基于改进的bp网络模型较强的非线性映射能力和前期沉降实测资料，对路基中各天然土层的非线性模型主要参数进行了反分析修正； ( 4 )路堤沉降计算一维法中考虑应力历史、侧向变形的研究。