road n. 1.路,道路;街〔略 Rd.〕;公路;行车道;路程,行程。 2.〔美国〕铁路。 3.方法,手段,办法;(走向成功、失败等的)道路,途径。 4.【航海】〔常 pl.〕(开放)锚地,海中停泊处。 5.〔the road〕〔美剧俚〕纽约以外的任何地方〔巡回剧团经常旅行的路线和演出的城镇〕;〔美推销员俚〕旅行路程。 a main road 大街,干道。 beaten road 走惯了的路;〔比喻〕惯例,常规办法。 royal road 捷径。 by road 经由公路(而非铁路,空路)。 the rule of the road 交通规则。 a gentleman [knight] of the road 〔戏谑语〕拦路强盗。 All roads lead to Rome. 条条道路通罗马。 break a road 开路前进;排除困难前进。 for the road 为了送行,祝一路平安。 get out of the [sb.'s] road 不妨碍;让开道路给…走过。 get sth. out of sb.'s [the] road 扫清,消除,赶走。 give (sb.) the road 让路;给通过;辞退某人。 go on the road=take the road. go over the road 〔美俚〕被判徒刑。 hit the road 〔美俚〕上路;离去。 in sb.'s road 拦着…的路;〔口语〕阻碍着。 on the road 在旅行中;〔美国〕(剧团等)在巡回演出中。 out of the common road of 离开…常规,逸出…的常轨。 road agent 〔美国〕拦路强盗;小贩。 take the road 出发,启程,动身;流浪;〔古语〕做强盗;(剧团)去巡回演出。 take the road of sb. 居某人之上。 take to the road 出发旅行;〔英古〕做拦路强盗。 vt. (狗)闻着臭迹追。 n. -er 1.修路工人;清道夫。 2.=roadster. -man n. 修路工人。
Optimal route choice algorithm is one of the key ingredients of dynamic traffic distribution theory . its major goals is to find the optimal route to destination from road net as soon as possible with lowest computing error , according to the road structure , road weight and od value 它是根据交通控制系统提供的路网结构、路段权值和出行的od对值,在路网中找出从出发点到目的地的最优路径,其要求是能够尽可能快速和准确地实现诱导路径的计算功能,满足动态交通流诱导的全局寻优和实时性等方面的要求。
The influence of temperature change , reference temperature , the surface cracking length and the reflective cracking length on the working properties of road structure is discussed . drucker - prager plastic criteria is used to simulate the characters of composite foundation and soft clay ground 接着研究了低温变化温度场对软土地基与无损、含有表面裂缝及含有反射裂缝道路结构体的相互作用,讨论了路表变温、基准温度、表面裂缝长度和反射裂缝长度对道路结构体工作性状的影响。
Research results show that the settlements of the road structure mainly come from the consolidation and the accumulative residue settlements under the cyclic loads . excessive uneven settlements will produce the premature failure on the pavement . and few researches on the interaction of pavement and subgrade have been developed at present 研究表明,路面路基结构的沉降变形主要来自地基路堤土层的固结压密沉降和交通荷载反复作用下路面路基各结构层的累积残余变形,路面路基结构发生过大的沉降变形会使路面过早破坏。
The main research outputs of this paper are as follows : l . baed on the choosing rational mix proportion , the influence of changing volume proportion of steel fiber on mechanical properties such as crushing resistance , splitting resistance , breaking resistance and bending resistance and the variation rule of mechanical properties are studied by experiment and theoretical analysis of 320 samples . according to experimental results of different layered structure of fiber - reinforced concrete , the influence of layered height on splitting strength and breaking strength is discussed . so it offers reliable reference to design road structure by using fiber - reinforced concrete 在选择了合理的配合比基础上,通过对320块试件的试验和理论分析,研究了钢纤维体积率的变化对抗压、劈拉、抗折以及弯曲韧性等力学性能的影响及变化规律,由不同分层试件的试验结果,探讨了钢纤维混凝土的分层高度对劈拉、抗折等强度影响,为钢纤维混凝土的路面结构设计提供了可靠的依据。