It is about 6.8 kilometers long, 8 lanes in both directions, 100 kilometers per hour, and a design service life of 100 years. The Shenzhen-Zhonghai-Macao Bridge is comparable to the Hong Kong-Zhuhai-Macao Bridge. It integrates "bridge, island, tunnel, and underwater communication" into one, and is creating multiple "world firsts" and "world's most". At the same time, its high construction technology requirements and complex construction technology are also well-known in China and the world at present, facing many "world-class" problems and challenges.

In April this year, the construction of the Shenzhen-Shenzhen Corridor S06 bid project ushered in construction. The project is located between Shenzhen and Zhongshan, and is located in Wanqingsha Town, Nansha District, Guangzhou. The pile foundation has a total of 12 pier positions and the pile diameter is 2.5m. The 72 piles have an average length of 65m. The foundation construction is difficult and the performance requirements of the rotary drilling rig are extremely high. As the contractor of this project, Zhejiang Yitong Foundation Engineering Co., Ltd. has a long-standing reputation for large-diameter pile foundation projects. It has successively conquered Hong Kong-Zhuhai-Macao Bridge, Hangzhou Bay Cross-sea Bridge, Sutong Yangtze River Bridge, Shanghai-Shanghai Yangtze River Bridge, and Donghai Bridge. The project has a footprint spanning the north and the south of the Dajiang River, and has participated in the pile foundation construction tasks of the S02, S04, S05 and other sections of the Shenzhen-Mandarin Passage, and has extensive construction experience.

According to Zheng Linlin, the person in charge of the second project company of Yitong Foundation, the S06 standard of Shenzhen-Middle Channel can be regarded as a milestone project for Yitong, because this project is the company's first ultra-large rotary excavator project offshore construction. The diameter is 2.5 meters, the longest pile length is 96 meters, and the rock penetration depth is more than ten meters. "Because this construction is a rock-socketed pile with a rock penetration depth of more than 10 meters, the project department actively communicates with the design unit to raise the elevation of the pile bottom and reduce the rock penetration depth. The current rock penetration depth is generally 6-7 meters. "In the face of such an important and difficult project, after comparing and testing multiple brands of rotary drilling rigs, Yitong decided to use Shanhe Intelligent SWDM550 rotary drilling rig to take on this difficult task.

Shanhe Intelligent SWDM550 Rotary Drilling Rig in Construction of Deep Middle Passage

Rotary drilling rig is one of Sun River's intelligent fist products. "Reliable performance, can harden the hard bones!" Is the user's iconic evaluation. "So far, we have been working together for more than 7 months. Shanhe Intelligent Machinery is efficient and reliable, and its technical services are strong, which ensures the engineering quality of the pile foundation. It not only meets the construction requirements, but also has an overall work efficiency of 115%. The evaluation of rotary drilling rigs is very high! "Zheng Linlin commented.

It is reported that before 2015, Zhejiang Yitong used a full-hydraulic reverse-circulation large-caliber drilling rig produced by its subsidiary Zhongrui Zhongke. With the continuous expansion of its business, in early 2015, Yitong decided to try to introduce rotary drilling rig construction. “We inspected the rotary drilling products of almost all well-known brands in China with a professional perspective, and finally purchased a Shanhe Intelligent SWDM420 rotary drilling drill for the construction of the 'Feiyun River Cross-sea Bridge'.” The project leader recalled The main pile foundation diameter of the Feiyun River Cross-Sea Bridge Project is 2.2 meters and the pile depth is 110 meters. The geological conditions are complicated and the construction is difficult. "Pile foundation construction uses Shanhe Intelligent Rotary Excavation, which has more than doubled its efficiency. The use of rotary drilling rigs has promoted the development of pile foundation construction in China, greatly improving the efficiency of construction, and praising Shanhe Intelligent!"

On the construction site, Shanhe Intelligent Equipment Cluster performed well

In addition to the outstanding SWDM550 rotary drilling rig, Suntech Intelligent Equipment Cluster is playing a major role in the “super engineering” deep and middle aisle, Suntech Intelligent Truss crawler crane SWQUY85 and multiple excavators are also the main force at the construction site.

As a major national project in China's new journey towards a powerful transportation country, the deep-middle-passage project has the wisdom and sweat of the Chinese people behind it, creating miracles. Every super project that envied the world, whether for the designer, the builder, or the construction unit, is an extreme experience. Only the highest quality can create the "world's best". Sun River Intelligent and Zhejiang Yitong joined hands to overcome extremely difficult tasks and shine in the Shenzhen-Middle Channel. It is the stable reliability of its products, the strong adaptability to working conditions, and excellent user reputation. reflect. Looking forward to the future, Sun River Intelligent Equipment takes technological innovation as the background, and cooperates with partners to participate in more super projects that benefit the country and the people. It will inject more value into the "transportation power" construction with more valuable "Chinese wisdom" and "China solution" vitality!