Large-diameter steel cylinder vibration sinking process
A process method and vibration system technology, applied in water conservancy engineering, marine engineering, infrastructure engineering and other directions, can solve the problems of inability to prevent the deflection of the cylinder body, inability to do it, and difficulty in penetrating soft soil layers.
Inactive Publication Date: 2005-11-02
NO 1 ENG COMPANY CO LTD OF CCCC FIRST HARBOR ENG COMPANY +1
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Problems solved by technology
[0003] (1) It is difficult to penetrate complex (including sand layer or lens) soft soil formation;
[0004] (2) The deflection of the barrel cannot be prevented, and the sinking of "controlled (elevation, deviation, inclination)" cannot be achieved;
[0005] (3) The construction cost is high, the speed is slow, and the project quality is poor
[0006] Although the plug-in cylindrical structure has the advantages of material saving, good quality, high speed and low cost, the key is how to sink it into the mud depth required by the design and achieve the verticality and alignment required by the design. Restricting the prospect and development direction of the application of large-diameter cylindrical structures,
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[0031] Using 4 large hydraulic vibrating hammers and synchronizing devices to form a vibrating system, the vibrating and sinking of large-diameter steel cylinders is the first in China. It is also the first case in the world to use a hydraulic vibratory hammer group (different from electric drive) to vibrate and sink a large-diameter steel cylinder. Solving the synchronous vibration of multiple hydraulic vibratory hammers is the key technical problem of the vibratory system;
[0032] (1) There are no ready-made technical standards, norms and regulations in my country for vibratory sinking of large-diameter steel cylinders. A large number of technical problems must be carefully designed and prepared, and constantly discovered, researched, solved, summarized and improved in the practice of the construction process;
[0033] (2) Select the main parameter of the vibratory hammer—the calculation of the vibration friction resistance. Although various calculation methods from Japan, ...
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The present invention relates to a vibration sinking process for large diameter steel cylinder. It uses four hydraulic vibration hammers and utilizes synchronizer to form vibration system to implement vibration sinking process for large diameter steel cylinder. The invention also provides the concrete steps for implementing said process and technical requirements. The process is high in working efficiency, vibration sinking quality is good, the steel cylinder deviation up-to-standard rate is 100%, slant up-to-standard rate is 85% and sinking up-to-standard rate is 92.5%.
Description
Technical field: [0001] The invention belongs to a construction method for building a wharf, and particularly designs a large-diameter steel cylinder vibration sinking process method and a vibratory hammer system used. Background technique: [0002] The plug-in large cylinder structure was first created in France in the late 1940s. In the 1960s, the former Soviet Union began to use it to build wharves, and then it was also applied in marine engineering in Japan, the Netherlands, the United States and other countries, and it was introduced into my country in the early 1980s. The material of the large cylinder was initially reinforced concrete, but later it was made of steel. For the method of sinking below the mud surface, most of the large reinforced concrete cylinders are sunk by digging holes in the thick wall or using caisson construction methods, but the combination of thick wall hole excavation, caisson construction and negative pressure and loading The main problems o...
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IPC IPC(8): E02B3/04E02D7/18
Inventor 袁孟全徐文华徐元锡马芳廷康学增李永全祝业浩张树人刘凤松王立峰郭宝华宋宝珍梁江邕张家祥朱连宇
Owner NO 1 ENG COMPANY CO LTD OF CCCC FIRST HARBOR ENG COMPANY