After the closing of navigation and the formation of ice pilot drilling was continued using the device location Subsite-750. The total duration of the facility – from October 2007 to February 2008, if we speak directly on the complex issues of implementation vysheoboznachennyh transitions, first of all, we should pay attention to the complicated geological conditions. In addition to the arduous terrain, the nature of the soil (hard clay, limestone, sand and gravel, water-saturated sand and gravel) are also greatly complicates the task. In addition, the devices "GPR" showed that in the construction of the facility are straw-colored bed of the Volga. Certain problems were related to the delivery pipe, drill and hand tools to sand island Caves. Natural barrier there was water in its two states. It complicated the delivery of the works in the area Peninsula Rowing Channel Island – Caves Sands in the fall, and the area Bor Island – Caves Sands of which were conducted in the winter, "intervened in 'unfit for the movement of equipment ice.
Had involve hovercraft, snowmobiles and other special equipment. Nevertheless, despite all of these difficulties, the project was successfully completed. This task is enriched by specialized companies Trust "Svyazstroy-4" new, largely unique to them and experience. Volga builders for the first time carried out a series of transitions of natural water hazards such length and complexity. We emphasize once again that the work was carried out on great depth.
Project is unique in that transitions through the largest river in Europe was installed HDD Ditch Witch JT8020 with tightening torque 36 m. Thus, thanks to technology Ditch Witch and highly qualified staff "Svyazstroy-4" extensive track record of successfully completed trust objects GNB added another achievement. Speaking of high style, the "frame" of more than 150 000 m constructed earlier transitions were placed corresponding to the "pearl" – 890 m long well! The most commendable quality of service and qualifications of specialists "WITCH Ditch SERVICE" (Moscow). Our employees are ready to help at any time. They – the real professionals their cause, they say, owning a thorough question. In addition, it should be noted for their purely human qualities – kindness, compassion. The above applies to all employees without exception company, but special thanks and recognition of merit chief engineer "WITCH Ditch SERVICE" Nikolay Golubev and engineer Yuri K. Melnikov, provided invaluable assistance directly to the construction the object. Speaking of help to the specialists' Svyazstroy-4 "from other organizations should be noted that geological surveys were conducted with the participation of specialists MAC HDD (Kazan) devices" GPR ". In general, successful completion of the work was made possible through a combination of the following factors: – the presence of advanced and powerful technology of HDD production company Ditch Witch ; – highly professional and experienced concerted action Professional trust "Svyazstroy-4" (GNB professionals, designers, project managers) – a fruitful interaction with the "Ditch SERVICE WITCH" (Moscow) – help fellow guild members in the face of MAC HDD. Returning to talk about the quality of facilities HDD Ditch Witch, voiced the unanimous feedback from the trust "Svyazstroy-4" – American technology has once again confirmed the high reputation as a world leader. Moreover, the management Trust and direct the contractor agree that it is through the use of systems of this manufacturer GNB project to implement the hidden transitions under water hazard so great length and complexity has been successfully completed. Article provided by an exclusive dealer of Ditch Witch – Company Ditch WITCH SERVICE HDD rigs