culvert body 中文意思是什麼
culvert body
解釋
涵洞身-
In the simulation and analysis on culvert construction, the method of foundation - pit excavation layer by layer and step by step was used, i. e. the method that makes the surface of excavation have no stress, when the elements were excavated gradually in period of construction. at this process, the state of soil is unloading, the laws of stress field and displacement field with the depth of excavation were studied. based on the obtained stress field and displacement field after the excavation was completed, by using of the newly increased filling - elements " gravity and the grinding force, the simulation of the construction of body of the culvert and foundation - pit ' s filling layer by layer had also been done in this dissertation
用有限元法模擬分析涵洞基坑開挖時，採用分層、分步模擬開挖過程的方法，即將計算域內單元分層「挖去」 ，使開挖表面成為無應力表面的方法，分析土體在卸載狀態時的應力場和位移場隨開挖深度的變化規律；在洞體施工后，回填土體時，據開挖完成時的應力場、位移場，通過逐級增加計算域內的單元數目，施加每級新增加單元的自重荷載，利用有限元法模擬基坑及上覆土體分層填築的施工過程，這不僅反映土體處于再加載應力狀態時，填土受力及變形的一般規律，而且這種將地基? ?涵洞? ?土體作為一個統一整體進行模擬的方法，量化了三者之間的相互作用關系。 -
Including the main body of the subgrade, protecting and supporting engineering. drainage equipment of road, culvert and the transition zone between the road and the bridge. through investigating the types of diseases, the author discusses the existing problems and causes of producing diseases, puts forward the protective measures in design and construction, and raises the treatment measures in highway maintenance, which makes it more scientific and perfect for highway construction and maintenance in the loess areas
論文首先對黃土的工程特性及其影響因素進行了分析，然後對黃土地區路基病害及其防治技術進行了研究，具體包括路基主體、防護與支擋工程、公路排水設施、涵洞及路橋過波段等部分，對病害類型進行了調查，分析了使用中存在的問題與病害產生的原因，提出了在設計與施工中應採取的防範措施，給出了養護中的處治對策，使我國黃士地區公路建設與養護更加科學和完善。
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