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观察地段是天水、陇西、兰州。现象是通过工程地质踏勘及调查的实践,在人工路堑边坡坡面上看到的。一、黄土状土中的构造现象1.非垂直性斜节理垂直节理及性质,很早以前就有被大家所公认的概念,本观察地段,该节理也是存在的;但除垂直节理外,分布于黄土状土中的非垂直性斜节理,也是客观存在的事实。它们的何角一般是60°至80°,少部是30°至50°;走向一般是北东15°、50°、65°、80°,少部是北西5°、25°、50°;倾向大部向南东,少部北东及南西。斜节理面及分布通常没有岩质岩层中那样光
Observation lot is Tianshui, Longxi, Lanzhou. Phenomenon is seen through the practice of engineering geological survey and investigation on the slope surface of artificial cuttings. First, the loess-like structure of the phenomenon 1. Non-vertical oblique joints vertical joints and the nature of a long time ago, we have been recognized by the concept of the observed lots, the joints also exist; but with the exception of the vertical joints, the distribution Non-vertical oblique joints in loess-like soil are also objective facts. Their angle is generally 60 ° to 80 °, with a small part of 30 ° to 50 °; the trend is generally 15 ° North East, 50 ° East, 65 ° East and 80 ° East, and the smaller part is northwest 5 °, 25 °, 50 ° ; Most tend to the south east, a small number of North East and South West. Slant surfaces and distributions are generally not as bright as those in rocky formations