瀝青坑 的英文怎麼說
中文拼音 [lìqīngkēng]
瀝青坑
英文
pitch bay-
The characters and reasons of easily destroyed asphaltum road was mainly discussed in this paper. then some prevention and cure measures was proposed to improve the quality of road construction
摘要瀝青路面易損病害易發生在水泥混凝土加鋪瀝青混凝土、地勢坑凹多雨水、斜坡、轉彎及十字路口、公交站等路段。合理設計路面結構、加強瀝青路面防水設計、嚴格控制施工質量是瀝青路面易損病害的主要防治措施。This thesis also first presents the most straightforward and the most effective evaluation indexes on the qualities of crack filling and pothole repair, compares and analyzes the properties, the applicable situations, the strong and the weak points of crack filling materials ( such as hot asphalt cement, emulsified asphalt, modified asphalt, etc. ) and pothole repair materials ( such as hot - mix asphalt mixture and cold - mix asphalt mixture ). on the basis of the permanent demands on repair, this thesis sums up and lists the maintenance steps in crack filling and pothole repair, and advances the procedure designs to be directly adopted by maintenance workers of asphalt roads
首次提出了評定瀝青路面裂縫填封和坑槽修補質量好壞最為直接、有效的評價指標,分別對用作裂縫填封材料的熱瀝青、乳化瀝青和改性瀝青及用作坑槽修補材料的熱拌瀝青混合料和冷拌瀝青混合料的性能、適用場合及優缺點進行了比較分析,並按永久性修補要求,歸納提煉了裂縫填封和坑槽修補的工藝步驟,提出了可供瀝青路面養護人員直接採用的工藝方案。This thesis for the first time bases its analysis on the maintenance characteristics and repair mechanisms for crack filling and pothole repair in asphalt roads. it analyzes the properties of the aggregate and the bituminous binder in patching materials, and further analyzes the compatibilities of the aggregate and the bituminous binder, patching materials and old pavement materials. furthermore, it determines the grading types, the mineral aggregate gradations, the application rate of asphalt, the principle of selecting component materials and the air void
本文首次依據瀝青路面裂縫填封和坑槽修補的維修特性和修補機理,全面分析了修補材料中集料與瀝青結合料應具備的性能要求,並對集料與瀝青結合料、修補材料與原有路面材料的相容性進行了深入的分析,同時分析確定了修補材料的級配類型、礦料級配、瀝青用量范圍、組成材料的選用原則及空隙率等。There are also endless numbers of birds in the tar as well
瀝青坑裡還有無數只鳥的屍體。The la brea tar pits it is
就是拉布雷亞瀝青坑了. .Apparently what happened was that water collected on these tar pits, and the bigger animals like the elephants ventured out on to the apparently firm surface to drink, and were promptly bogged in the tar
當時的情況顯然是,瀝青坑裡積存了水,大象那樣的大動物冒險到似乎堅固的冰面上去飲水,立即掉進了瀝青坑。This thesis focuses systematic and comprehensive study on distress causes, repair mechanisms, patching materials and maintenance procedures in relation to cracks and potholes, the two most commonly seen distresses in asphalt roads
本文著重針對瀝青路面裂縫和坑槽這兩類最常見的破損,對其形成原因、修補機理、修補材料及施工工藝進行了系統、全面的研究。The experience of past ten years hi highway construction shows that the practical life time of asphalt pavement is far more shorter than anticipated ( 15 - 20 years ). damages, such as cracking rutting and less of friction resistance are offer occurred in first two years. they caused direct and indirect economy losses and bad social influences
十幾年的高等線公路建設實踐表明,瀝青路面的使用壽命遠小於予期的使用壽命( 15 20年) ,往往在通車一兩年內出現坑槽、開裂、車轍、抗滑性能不足等早期損壞,帶來直接、間接的經濟損失和不良的社會影響。A most sophisticated classification is made to the geometric shapes and distress causes of cracks and potholes as well as to their sizes and degrees of damage
根據瀝青路面裂縫和坑槽破損的幾何形狀及成因,對其作了全面、細致的分類,並對其大小和嚴重程度等級進行了劃分。分享友人