East anchorage is considered as one of anchors for tunnel anchorage, which is assigned in silty-sandstone and sand-mudstone layers.
东锚碇为隧道锚，布置在粉质砂岩和砂质泥岩互层岩体中，锚碇及围岩体的变形状态直接影响大桥的稳定和安全。
The noise in the information from the wells in the thin sand-mudstone interbed area with dense well network should be removed by coarsening well information.
对密井网的砂泥岩薄互层区采用井信息进行粗化去除部分干扰信息；
The empirical formula is fairly suitable to the sand or mudstone stratum, but it is inapplicable to the coal stratum.
这些经验公式砂、泥岩层比较适用，而对含煤地层则不适用。
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