A construction method for taking and unloading soil by improving the high-frequency vibratory hammer using loose-leaf type

Abstract

The invention relates to a construction method for loose-leaf soil extraction and unloading by improving the high-frequency vibratory hammer. The soil bin is equipped with a number of movable bin doors, which can be moved, and the opening and closing of the bin doors are controlled by wire ropes. On the one hand, the use of bolts to restrict the bin doors is avoided; On the bin, the soil is completely unloaded, and it can be operated semi-automatically, with extremely high efficiency.

Description

technical field [0001] The invention relates to the field of civil engineering construction, in particular to the field of construction of cast-in-situ piles for forming holes, and specifically relates to a construction method for taking and unloading soil by improving a high-frequency vibrating hammer and adopting a loose-leaf type. Background technique [0002] At present, in the process of forming holes in cast-in-situ piles, taking and unloading soil is the key to the construction process. The commonly used methods of taking and unloading soil are: 1. Punching (drilling) holes with mud retaining wall, and using mud circulation to realize the discharge of soil slag outside the hole, but A large amount of mud needs to be prepared, and there is mud pollution; 2. Long helical drilling, although the mud wall is not used to form the hole, but when the soil rises in the helical blades and is discharged to the ground, part of the soil sticks between the helical blades, and the bl...

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Problems solved by technology

[0002] At present, in the process of forming holes in cast-in-situ piles, taking and unloading soil is the key to the construction process. The commonly used methods of taking and unloading soil are: 1. Punching (drilling) holes with mud retaining wall, and using mud circulation to realize the discharge of soil slag outside the hole, but A large amount of mud needs to be prepared, and there is mud pollution; 2. Long helical drilling, although the mud wall is not used to form the hole, but when the soil rises in the helical blades and is discharged to the ground, part of the soil sticks between the helical blades, and the blades must be lifted out of the hole for special purpose. Cleaning has low work efficiency, and the diameter of conventional piles is small, so it is impossible to realize large-diameter pile foundations; 3. Full-rotary drilling and pipe rubbing machine forming holes do not require mud and can be used for dry operations, but the supporting equipment is relatively large and the investment is large. The cost is expensive; 4. The inner tube of the high-frequency hydraulic vibration hammer pile machine takes soil, and the amount of soil taken at one time is large without mud pollution. It is also easy to be buried by the unloaded soil, which leads to a long waiting time for the pile driver and greatly reduces the efficiency of soil unloading; The gap between the soil pipe and the soil-borrowing bin was unloaded, but because the bin door was closed, some soil remained on the soil-borrowing bin, which needed to be manually excavated, and some manual operations were still required

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