1.Introduction

Geotechnical engineering investigation is the premise and foundation of engineering construction design, and the accuracy of the investigation results has great influence on the engineering cost control and the determination of design scheme. Geotechnical engineering investigation is to use various geological investigation methods to deal with the relevant problems of geotechnical geological conditions, so as to provide technical rock parameter reference for the subsequent construction drawing design and construction. The 21st century is the era of sustainable development and high-quality development of underground space has become an international consensus. With the gradual advancement of urbanization in China, the available space in the city is gradually reduced, which makes the urban construction project develop in a higher and deeper direction. It is necessary to effectively strengthen the geological investigation work in the construction of geotechnical engineering in underground space, so as to avoid a series of construction accidents that may be caused by improper handling of various precautions. Ensure the smooth development of support work in underground space, and ensure the safety of geotechnical engineering construction operations in underground space.
"2024 Geotechnical Engineering and Investigation Technology Exhibition" is an important exhibition direction of the theme of "Urban Safety and Lifeline" in the Plate "Underground Space Engineering and Technology" of this Expo. The exhibition focuses on urban underground space planning and design, underground space detection technology and equipment, underground engineering information and safety design, urban underground space major disaster prevention, underground space storage facilities construction and other contents, covering the whole industry chain cycle from upstream and downstream design, construction and construction, operation and maintenance management, urban safety and disaster prevention, etc. Focusing on the upgrading of four new technologies in the underground space industry. The exhibition links all parts of the Yangtze River Delta to exchange and share practical experience and design inspiration in the development process of underground space, providing reference experience for the construction of low-carbon and resilient cities, providing theoretical basis for the rational planning and development of underground space development and utilization, and jointly promoting the further improvement and development of urban underground space development and utilization.

2.Contents

1. Geotechnical exploration, testing, experiment and monitoring equipment:
Engineering geological survey and mapping, exploration and adoption of soil samples, in-situ testing, building structure non-destructive testing, environmental humidity monitoring, strain electrical monitoring, geotechnical engineering and structure monitoring, indoor geotechnical laboratory, pile foundation testing, building materials and structure testing, etc.;
2. Geotechnical construction materials:
Anchor cable materials, active and passive protection materials, spray planting greening materials, water sealing and seepage prevention materials, water drainage materials, jet grouting and quick-setting materials, new technologies and technologies of geotechnical engineering construction, etc.
3. Underground construction equipment:
Tunnel boring machine, rock drill, hydraulic excavator, micro tunnel and trenchless equipment, drilling equipment, rail transportation equipment, conveyor belt, crane, support equipment, etc.;
4. Supporting equipment and services:
Air compressor; Anchor drilling tool; A drill pipe; Testing and maintenance equipment; Power equipment and generator sets; Transmission components; Hydraulic and hydraulic components; Pneumatic tools and components; Sealing and lubrication; Safety protection; Engineering survey and design, construction and construction units.