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The Tonglushan ancient copper mine relics in Daye of Hubei province is the ancient copper mine relics in China with the most complete preservation, the earliest excavation time, the highest smelting level and of the largest scale. However, deformation and cracking recently occurred in the copper mineral relics. According to the engineering geological conditions and surrounding environment of ancient mine relics, the main factors of slope deformation as well as the deformation were analyzed. In view of the deformation characteristics of ancient copper mines, the deep sliding force monitoring system was adopted to continuously monitor the slope stability of relics. According to the monitoring curve, the sliding force of No. 6-2 monitoring point presented a sudden drop on 13th February through field survey; the reason was that the local collapse of goad occurred around the No. 6-2 monitoring anchor cable, leading to the reduction of shearing force supplied by unstable body on the cable. Through drilling and geophysical exploration, the distribution of goafs around the relics were probed, revealing that the old goafs beneath the relics constituted the basic inducing mechanism of relics deformation, while the method of filling and grouting were proposed to control the goafs.

In the process of urban renewal, the development of underground space is faced with many scientific problems, including complex geological structure, underground abandoned buildings formed by historical construction, interaction mechanism between deep space excavation and surrounding environment, and stratum structure collaborative bearing mechanism of urban deep underground space. To solve these problems, the service platform of digital twins’ model and transparent monitoring for urban underground space are proposed, which can grasp the response of urban underground space and surrounding environment in real-time.

Compared to the traditional anchor cable, the constant resistance and large deformation anchor cable (constant resistance and large deformation anchor cable) has good applications in many fields of geotechnical engineering. Through the indoor static tension test, this study reveals the variation law of constant resistance, axial strain, the outer diameter of the sleeve, and the thermal effect of constant resistance and large deformation anchor cables during static tension. The ANSYS software was used for the first time to establish the nonlinear thermomechanical coupling analysis model of the finite element structure of constant resistance and large deformation anchor cables for the numerical calculation and analysis of static tension mechanical properties of constant resistance anchor cables. The experimental results that the average elongation of this batch of constant resistance anchor cables is 905 mm with an average elongation rate of 45.2% and an average constant resistance of 650 kN prove that constant resistance anchor cables are characterized by good constant resistance and large deformation, which can meet the requirements of deep soft rock roadway support and advanced landslide monitoring. The numerical simulation results show that the elongation of this type of anchor cables is 902 mm with an elongation rate of 45.1% and a constant resistance of 660 kN, which are basically consistent with the experimental results, indicating that numerical simulation is relatively accurate for testing the mechanical property of constant resistance and large deformation anchor cables, and the combination of the indoor test and numerical simulation provides the reference for engineering practice and design optimization of constant resistance and large deformation anchor cables.