ABSTRACT
Gold mining cave of the Ming Dynasty is an underground gold mining site. To calculate its numerical simulation, an accurate three-dimensional model is required. So, before the gold mining cave of the Ming Dynasty is measured, it is necessary to locate its relative position, namely the relative position in the existing topographic map. Therefore, before
1 INTRODUCTION
Suichang gold mining cave is located in Suichang county, city Lishui, Zhejiang Province. Suichang ancient gold mining and smelting history is very long. Based on the ancient wood 14C test in Cave No. 4 (namely Huangyankeng) of Suichang old gold mining cave, Cave No. 4 is a relic site of gold mining in the Tang Dynasty (AD 618∼907) (Luo & Qiu 2008, Wang et al. 2000, Zhang et al. 1998, geological investigation team of Lishui 1983, southern metallurgy institute. 2001). The Ming Dynasty gold cave was found in the bottom of the Tang Dynasty gold cave, with the vertical height from the ground of about 148 meters. According to the historical records of the Ming Dynasty, Wanli aged 25 years (AD 1597), under official oppression by the eunuch Cao Jin, who was appointed by the court as mine Supervise ambassador, county magistrate of Suichang, Tang Xianzu, was forced to organize people to mine this gold mining cave and left the ancient ruins. Suichang gold mining cave has a very high historical value and scientific value. The ancient decrepitating method (CCTV
3D laser scanning, we set control points along its bottom and carried out the plane and level control survey. After obtaining all plane and elevation coordinates data of control points, these control points are used as the measuring station of 3D laser scanning, so this point cloud data by 3D laser scanning is given a real coordinate value.
