Research borehole data

<p>The file is about engineering borehole data,&nbsp;including: ZKX, ZKY, TCHD, TCCDSD, ZKBG, TCZCBH, ZKID, GCSY, TCYCBH, TCCYCBH. These represent&nbsp;borehole coordinates x, borehole coordinates y, soil layer thickness, soil layer bottom depth, borehole elevation, main layer label, borehole id, engineering index, sublayer label, sublayer label of sublayer.</p> <p>z_g_TuCeng.csv and z_ZuanKong.csv are open ISO format of borehole_data.mdb.</p>