DaYi Structure is located at the northwest DaYi town, is the transition unit between the foreland and orogene, endured intensive tectonic activities during YinZhi and XiShan period, generated multiple stacking tectonic distortion.
大邑构造位于成都市大邑县城西北面，属前陆盆地与造山带间的过渡单元，印支、喜山期间构造活动强烈，造成多期叠加的复杂构造变形。
参考来源 - 四川盆地大邑构造的构造建模与构造解释研究Sandstone and shale are interbedded at the shallow well section of Dayi Structure,partially mixed with gravel and having poor drillability.
大邑构造浅部地层砂岩和泥岩交错,局部夹杂砾石层,可钻性差。
参考来源 - 大邑构造浅部井段钻具失效与预防·2,447,543篇论文数据，部分数据来源于NoteExpress
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