safe adj. 1.安全的,安稳的;无危险的。 2.确实的,一定的。 3. 安全,平安〔作 arrive, come 等的述语用〕。 4.谨慎的,稳健的,可靠的;小心翼翼的。 5.【棒球】不会死的,安全的〔安抵某垒的〕 (opp. out )。 6.【自动化】稳定的。 I saw him safe home. 我送他平安到家。 It is safe to get warmer as the day goes on. 天气确实一天比一天暖和了。 He is safe to get in. 他肯定会当选。 get a person safe 抓牢某人。 a safe [good] catch 【棒球】灵巧的接球员。 a safe first 稳拿第一的人。 S- bind, safe find. 藏得牢,找得着。 be safe from (attack infection) 没有受到(攻击、传染)的危险。 It is safe to say that .... 不妨说,说…准不会错。 on the safe side 谨慎地 ( It's best to err on the safe side. 即使错,最好也错在谨慎上面)。 play safe 采取四平八稳的办法。 safe and sound 平安无恙,安全。 n. 1.保险箱,安全容器,纱厨,纱罩;〔美俚〕冰箱。 2.马鞍防擦皮。 adv. -ly
thickness n. 1.厚;粗;厚度;粗大。 2.浓度,浓厚,黏稠。 3.密度;稠密。 4.模糊不清,多烟雾,混浊。 5.愚笨;迟钝。 6.最厚[粗,密,浓]处。 7.(有一定厚度的东西的)一张,一层。 8.亲密。 coal seams of less thickness than five feet 厚度不及五英尺的煤层。 the thickness of population in New York 纽约的人口密度。 wood of different thickness 厚度不同的木头。 five thicknesses of cardboard 五层纸板。
Study on safe thickness of rock mass at end of bridge foundation ' s pilein karst and worked - out mine area 岩溶及采空区桥梁桩基桩端岩层安全厚度研究
In this paper , combined with the research project " study on the design , construction and quality monitoring of foundations in karst and mined - out regions along tanshao highway " financed by the department of communication of hunan province , a deep analysis has been made to find out the factors influencing the safe thickness of bearing stratum under the pile tip in karst region . three simplified models are set up to calculate the safe thickness , from which empirical calculation formulas are deduced . and a few important conclusions drawn from the discussion can be used to guide engineering practice , which are also valuable materials for the revision of current criterions later 本文结合湖南省交通厅“潭邵高速公路岩溶及采空区路、桥基础设计施工与质量监控方法研究”研究课题,以潭邵高速公路为工程依托,通过深入分析岩溶区基桩桩端持力层安全厚度的影响因素,提出了桩端持力层安全厚度计算的三类简化模型,以此为基础,推导出了桩端持力层厚度计算公式,并通过讨论得到了可用于指导工程实践的几点重要结论,可供今后规范的修改参考;本文针对岩溶地区的特殊情况,提出了岩溶区桩基设计方法及具体设计步骤,并借鉴国内外岩溶区桩基的成功经验,提出了岩溶区桩基设计处理几种特殊方法,可供同类工程借鉴;另外,本文通过具体的工程实践,系统总结了岩溶区桩基施工技术及常遇问题的处理方法。