Intelligent pile planting technology

The soil cutting and pulverizer is used in combination with the intelligent control system. After the soil cutting and pulverization, the cement slurry is injected and then the high-speed cutting is fully mixed to form the fluid cement soil. The prefabricated pile is immediately implanted to form the rigid composite pile. The cement soil soil soil borrowing equipment is equipped to randomly test the quality of the cement soil. It has the advantages of economy and environmental protection, and has great promotion value especially in soft soil areas.

Technology of undisturbed soil sampling cast-in-place pile

This technology is applicable to the construction of supporting piles in foundation pit engineering. The pile length can be more than 30m. After the undisturbed soil is taken out by special equipment, the concrete is poured immediately, and the reinforcement cage is inserted to form the reinforced concrete pile. Put an end to mud discharge, reduce project cost and protect the environment. It is also the construction solution adopted after the provisions of hjj (2012) No. 645 that "GPS type bored pile mechanical construction shall not be adopted for Bored Piles with a diameter of more than 1m".

Automatic monitoring, early warning and control system of foundation pit safety based on BIM

Automatic monitoring, early warning and control system of foundation pit safety based on BIM

Focusing on the field of hazard source monitoring of urban foundation pit and slope engineering (Geological Hazard Control Engineering), through the open data interface, taking BIM as the project information carrier, GPS / BeiDou position acquisition and GIS as the project group information carrier, and combining with automatic monitoring and mobile Internet technology, the monitoring data automatically collected on site are integrated and summarized in this system. At the same time, an early-warning mechanism for safety monitoring of foundation pit and slope is established to carry out real-time graded alarm.

FDP fast soft ground treatment technology

This technology can significantly reduce the adverse effect of well resistance and coating effect on drainage consolidation, reduce the blockage of drainage channel, eliminate the blind area of drainage channel of traditional vacuum preloading, avoid the dependence on sand resources in traditional technology, and finally achieve the goal of saving more than 25% of project cost and shortening the construction period by 35%.

DCM mixing reinforcement and foundation treatment technology

The land DCM construction method integrates a number of R & D technologies such as cutting and mixing of ground soil, accurate injection of cement slurry, interchange of high and low slurry nozzles, environmental protection treatment system and intelligent control construction. It has mastered the core technologies of intelligent construction such as leveling system, cement slurry mixing and grouting system, drilling and lifting pile system, breaking the monopoly of Japan and South Korea in this field. At present, it has 15 Land DCM pile machines.

Treatment technology of RCP rigid composite foundation

Based on the advantages of sand gravel pile, cement soil rotary jet mixing pile and rigid pile, various combination methods are adopted according to the soil conditions and soft foundation treatment requirements. Through optimization of pile diameter, pile length, ash content, aggregate gradation and other parameters, the sufficiently high bearing capacity of single pile can be achieved by giving full play to the friction resistance and end resistance of the soil around the pile and matching the strength of the pile body material, and the strength of the soil between the piles can be significantly improved. It is applicable to soft foundation treatment along the coast and river.

Water mixing pile (DCM)

The offshore DCM construction method integrates many R & D technologies such as underwater soil cutting and mixing, accurate cement slurry injection, high and low slurry nozzle exchange, environmental protection treatment system and intelligent control construction. It has mastered the core technologies of intelligent construction such as mobile positioning system, leveling system, cement slurry mixing and grouting system, drilling and lifting pile making system, breaking the monopoly of Japan and South Korea in this field, and has four DCM engineering ships.

Water plastic drainage board (PVD)）

The offshore full hydraulic intelligent PVD construction technology is an innovative technology, with strong penetration of hard soil layer and high construction efficiency. 12 drainage boards with a length of 30m are constructed in one and a half minutes. The domestic counterparts generally use vibrators to construct 2-4 drainage boards at a time, and the construction time is longer. In the "three runs" project of Hong Kong airport, it has been praised by the Hong Kong Airport Authority for many times. It has accumulated 20 million meters of water PVD (plastic) drainage boards, and the equipment operation is very successful, which makes the engineering community refreshing. It has 3 PVD engineering ships.