变电站挡土墙施工质量好坏关系到主控楼、主变基础及构支架基础的安全。砌筑挡土墙应选用ＭＵ３０以上耐风化石料。砌石应放置平稳，大面朝下，铺满砂浆，分皮卧砌，分层错缝叠砌。高挡土墙须设置拉结石，必要时应设置拉结筋。挡土墙施工应注意设置沉降缝、泄水孔，在泄水孔下部设置隔水层或截水沟。回填土应尽量选用透水性较大的砂性土，且注意压实质量。 The quality of the construction of the retaining wall of the substation relates to the safety of the main control building, the main transformer foundation and the structural support foundation. Masonry retaining walls should be MU30 or more resistant to weathering stones. The stone masonry shall be placed in a stable manner, with the large surface facing downwards, covered with mortar, and laid and laid in layers, and laid in layers. The high retaining wall shall be provided with pull stones, and if necessary, pull-reinforced bars shall be provided. Retaining wall construction should pay attention to settling joints, drain holes, and a water-proof layer or intercepting ditch at the lower part of the drain hole. Backfill soil should use sand soil with high water permeability as much as possible, and pay attention to compaction quality.