Sentence examples for strata of surface from inspiring English sources

On the geoelectrical profile of second acquisition, 4 5 electric strata are distributed in the underlying strata of surface, the resistivity of strata located in the middle of survey lines is relatively higher and the sand and soil are relatively dry.

On the geoelectrical profile of third acquisition, 4 5 electric strata are distributed in the underlying strata of surface, the resistivity of surface strata increase relatively, the zone 20 30 below surface generally shows a resistivity distribution of low-resistivity stratum; the resistivity of coal roof influenced by working face mining fluctuates locally.

According to the control action of key strata on surface subsidence (Xu et al. 2005), panel width can be designed by stabilizing the most upper key stratum (primary key stratum, KS3) during the extraction (Fig. 7).

The rules of development of mining fractures in strata over panels control gas production of surface wells.

First, the rock-masses in the research area are simplified as an EJRM; then, a back analysis method, combining orthogonal design and numerical simulation with Discrete Element Method (DEM), is used to invert the mechanical parameters of the model; lastly, the DEM is utilized to analyze the movement and failure of the strata and surface induced by mining under open-pit slope.

Underground coal mining causes deformation and movement of strata and ground surface.

It can be found through comparing those 4 acquired water content profiles that water bearing of near-surface overburden strata basically has 3 layers, i.e. water content of surface layer (0 2 m) is low, and water contents of middle layer (2 8 m) and deep layer (8 15 m) fluctuate due to coal mining.

Higher up the value chain, a strata of budding fungal entrepreneurs have emerged in recent years.

Julian Block, an accountant in Larchmont, N.Y., says such taxpayers occupy "all strata of society".

Now 50, she has a strata of slight self-consciousness that bespeaks the particular introspection of her work.

Across the river, the bent strata of Island Park Fault curled 1,000 feet skyward, like a petrified tidal wave.