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對高鐵綜合接地系統(tǒng)的接地效果進行準(zhǔn)確評價可為綜合接地系統(tǒng)的設(shè)計施工及運營維護提供依據(jù);在牽引供電系統(tǒng)實際組成結(jié)構(gòu)的基礎(chǔ)上,采用傳輸線模型,考慮保護線(PW線)和鋼軌互感對分流系數(shù)及貫通地線接地阻抗的影響,推導(dǎo)得到符合綜合接地系統(tǒng)實際情況的分流系數(shù)及接地阻抗的表達式;選用分流系數(shù)及接地阻抗作為衡量接地效果的評價指標(biāo),通過與遂渝線實測數(shù)據(jù)的驗證對比表明,所提指標(biāo)對路基段及橋梁段都有較好的評價結(jié)果;尤其對路基段的評價,能更好地與實測數(shù)據(jù)印證,減少了評價誤差。
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— 1 — 目 錄 一、編制依據(jù) ······························································2 二、實施范圍 ······························································2 三、施工時機 ······························································2 四、總體實施方案 ·························································3 (一)、綜合接地總體原則 ··············································3 (二)、主要材料選取及說明 ·················錯誤!未定義書簽。 (