对高铁综合接地系统的接地效果进行准确评价可为综合接地系统的设计施工及运营维护提供依据;在牵引供电系统实际组成结构的基础上,采用传输线模型,考虑保护线(PW线)和钢轨互感对分流系数及贯通地线接地阻抗的影响,推导得到符合综合接地系统实际情况的分流系数及接地阻抗的表达式;选用分流系数及接地阻抗作为衡量接地效果的评价指标,通过与遂渝线实测数据的验证对比表明,所提指标对路基段及桥梁段都有较好的评价结果;尤其对路基段的评价,能更好地与实测数据印证,减少了评价误差。
— 1 — 目 录 一、编制依据 ······························································2 二、实施范围 ······························································2 三、施工时机 ······························································2 四、总体实施方案 ·························································3 (一)、综合接地总体原则 ··············································3 (二)、主要材料选取及说明 ·················错误!未定义书签。 (