The diameter of sand, content of plastic clastic and development of coal measures play a role in decreasing pore and development of protogenic pore between grains during diagenetic compaction.
砂岩粒径、塑性岩屑含量和煤系发育程度影响成岩压实减孔量，从而影响剩余原生粒间孔隙发育程度。
Large diameter close to the cart in front wheel, high landscape, a variety of sand soil road potholes can pass.
超大前轮，直径接近推车中的高景观车，各种沙石土路坑洼路面都能通过。
The bearing characteristic of large diameter and super-long pile in quaternary soil layer is analyzed in the case of no good bearing layer (such as rock, sand and cobble layer) and no ripe experience.
在没有良好的持力层（基岩或砂、卵石层）和成熟经验可借鉴的情况下，对第四系土层大直径超长桩（钻孔灌注桩）的承载特性进行了分析。
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