查询词典 roadbed

The mechanical mechanism of crack formation and crack growth based on partial concentration of stress of the roadbed are discussed. Crack growth is controlled by tensile stress and crack growth angle which is controlled by shear stress.

就路堤应力集中现象来讨论裂纹的形成和扩展力学机理，即裂纹扩展主要受拉应力作用，而裂纹的扩展角受剪应力的控制。

In this thesis, a detailed dynamics model of various kinds of tracks laid on the bridge such as ballast track, REHDA track, slab track, elasticity supported block track and all kinds of roadbed-bridge transition structure of the high-speed railway is established for the

本文在国内首次针对高速铁路桥上有碴轨道、长枕埋入式无碴轨道、板式轨道、弹性支承块式轨道结构以及各种轨道的路桥过渡段建立了系统全面的动力学模型。

Because the roadbed is in the condition of stable seepage in the normal highway construction and service, the formula of level and discharge of cut, tunnel and drainage structure in condition of confined water and dive are deduced on the saturated seepage theory.

4由于在公路建设和运行中，绝大多数时间路基是处于稳定渗流的情况，根据饱和渗流理论，推导建立了在潜水和承压水条件下路堑结构、隧道结构和排水设施在稳定渗流情况下的水位和流量计算理论公式；按地下水类型、公路结构型式、排水设施型式、是否进行衬砌或支护、组合方式和布置方案构建了公路工程地下水稳定渗流模型。

Because the roadbed is in the condition of stable seepage in the normal highway construction and service, the formula of level and discharge of cut, tunnel and drainage structure in condition of confined water and dive are deduced on the saturated seepage theory. The stability groundwater seepage model of highway engineering is established according to groundwater type, highway structure pattern, drain facilities pattern, whether carried on lining or timbering, combined pattern and layout.

4由于在公路建设和运行中，绝大多数时间路基是处于稳定渗流的情况，根据饱和渗流理论，推导建立了在潜水和承压水条件下路堑结构、隧道结构和排水设施在稳定渗流情况下的水位和流量计算理论公式；按地下水类型、公路结构型式、排水设施型式、是否进行衬砌或支护、组合方式和布置方案构建了公路工程地下水稳定渗流模型。

A finite element model of plain strain sand-wall roadbed is established , in which the effect of back berms and tide is considered .

基于海滩区淤泥路基中反压护道和潮汐的作用，建立了平面应变砂墙路基有限元计算模型。

Thirdly, the finite element method model of plain strain sand-wall roadbed was put forward, in which the effect of back berms and tide was considered.

再次，基于海滩区淤泥路基中反压护道和潮汐的作用，建立了平面应变砂墙路基有限元计算模型。

Engineering geological conditions are quite good, supporting the roadbed, bridges and culverts and other artificial structures.

工程地质条件较好，对路基、桥涵及其它人工构造物较为有利。

The main contents of the tender including the line, roadbed, bridges and culverts, cross and connecting lines, along the facilities, traffic engineering projects such as survey and design.

的主要内容包括招标的路线，路基，桥梁和涵洞，交叉，连接线，沿线设施，交通工程等项目的调查和设计。

Nevertheless, the pollution extents of these two dements are rather apparent at a distance beyond 500 m from the roadbed.

在距路基10m范围内为土壤重金属重度污染带，10～100m范围内为中度污染带，100～500m范围内为轻度污染带。

Strengthening, reinforcement, filtering, drain panel for soft, ground handling, geodetic cloth for separating and filtering, artificial lawn for, playground, drain, cloth, roadbed cloth for railway and highway, waterproof material for roof, dyke fortifying cloth, cloth for harbor base, substrate for asphalt, felt, lining cloth for sewer and irrigation canal, soundproof, heat-resisting, material for building

用途：加固、过滤、软基处理排水板、分离、排水用土工布、球场人造草坪、排水布、铁路、公路路基布、屋面防水材料、护堤布、港口基础用布、油毛毡底、下水道、灌渠内衬布、建筑隔音、防热材料等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。