I work in a construction unit (mainly municipal projects), and I have some details on quality inspection tests and materials.

1. The first question probably belongs to the scope of the geological survey. The construction unit is not yet qualified to measure the rock formations.

2. The basic general requirements for anti-slide piles and under normal circumstances are 100% acoustic testing (with acoustic tubes installed) or small strains. Coring is to check the integrity of the pile body. It is extracted based on the ratio. There is nothing to do with the information. If you have requirements, you need to fill out an application form and go to the quality inspection station in charge to apply for the designated testing agency to perform core extraction. The pile will be tested and a copy of the core extraction report will be sent out when the work is completed later. Attach it to the back of the information and submit it to the supervisor for confirmation and signature.