求翻译：由于基坑深度大，土质条件较复杂，尤其3-1-2新黄土（水下）、4-1-2-1老黄土（水下）及4-4粉质黏土呈软塑状态，抗剪强度指标相对较低，工程性能差，深基坑开挖后，在内外土体高差及超载作用下，支护结构外侧土体易向坑内移动，在坑底产生塑性隆起，并引起基坑外侧地面沉降。是什么意思？

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Because the hole excavated for building foundation depth is big, the soil texture condition is complex, especially 3-1-2 new loess (submarine), 4-1-2-1 old loess (submarine) and 4-4 powder nature clay assumes models the condition softly, the shearing strength target relatively low, the project perfo

Due to Foundation pit depth large, soil conditions more complex, especially 3-1-2 new loess (water Xia), and 4-1-2-1 old loess (water Xia) and the 4-4 powder mass clay is soft plastic State, anti-shear strength indicators relative lower, engineering performance difference, deep Foundation pit excava

Due to Foundation pit depth large, soil conditions more complex, especially 3-1-2 new loess (water Xia), and 4-1-2-1 old loess (water Xia) and the 4-4 powder mass clay is soft plastic State, anti-shear strength indicators relative lower, engineering performance difference, deep Foundation pit excava