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    Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/39608


    Title: 路基土壤對路面績效影響之研究(II);Effects of Subgrade Soil on Pavement Performance (II)
    Authors: 黃偉慶;林志棟
    Contributors: 土木工程研究所
    Keywords: 路基土壤;路面績效;落錘撓度儀;Subgrade;Pavement performance;FWD;土木水利工程類
    Date: 2001-11-01
    Issue Date: 2010-11-03 10:22:56 (UTC+8)
    Publisher: 交通部
    Abstract: 路基為公路之基底,支持面層結構,以達成負荷交通之任務;因此,路基土壤在路面設計中扮演非常重要的角色,因為路基土壤直接支撐路面,並承受由路面結構傳遞下來的車輪載重,因此為避免路基因應變過大而導致路面產生永久變形,路面必須具有足夠之承載力。本研究針對路基土壤對路面績效的影響,已於第一年計畫中完成下列研究內容: (1)路基土壤及基、底層材料之回彈模數試驗、靜態三軸試驗及反覆荷重下之永久變形試驗,(2)中央大學校內試驗道路及省、縣道現地撓度試驗及評估準則建立,(3)國內載重車輛交通特性資料之系統性整理分析,(4)三維有限元素鋪面結構分析模式之建立,(5)以破壞分析為基礎建立路面績效評估模式。目前所建構的三維有限元素鋪面分析模式,依路基土壤試驗結果分析顯示路基土壤對鋪面結構在交通載重下的反應有重要的影響。同時,以分析所得應力應變狀態做為路面績效評估時破壞準則的依據,可計算交通載重對路面的損害程度,建立路面績效評估之模式。因此,於第二年期之研究中將建立路基土壤資料庫,供路面設計與維護之參考,並探討路面各層材料受路基土壤影響之情形,做為路面維修養護系統評估之依據;此外,將選擇適當路段進行非破壞性檢測,以回算結果與實驗值加以比較,瞭解各結構層材料性質受路基影響變化之特性。 The performance of the pavement is known to be affected very much by the characteristics of the subgrade. Since subgrades vary considerably, it is necessary to characterize the soils in Taiwan, and to determine the appropriate soil parameters for the design of pavement. This study intends to conduct non-destructive field tests on pavements using falling weight deflectometer techniques. By the backcalculation of pavement system, structural characteristic of each component in the pavement can be determined. Then, laboratory testing will be conducted on representative subgrade soils triaxial tests. Results of the field and laboratory tests will be used to develop analytical models for pavement performance, with emphasis on the role of subgrade soil .研究期間:9001 ~ 9011
    Relation: 財團法人國家實驗研究院科技政策研究與資訊中心
    Appears in Collections:[Graduate Institute of Civil Engineering] Research Project

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