Research borehole data

The file is about engineering borehole data, including: ZKX, ZKY, TCHD, TCCDSD, ZKBG, TCZCBH, ZKID, GCSY, TCYCBH, TCCYCBH. These represent 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.

z_g_TuCeng.csv and z_ZuanKong.csv are open ISO format of borehole_data.mdb.