Construction method adopting loose-leaf type soil taking and unloading by improving high-frequency vibrating hammer

Abstract

The invention relates to a construction method adopting loose-leaf type soil taking and unloading by improving a high-frequency vibrating hammer. The technical core lies in that through improving the structure of the high-frequency vibration hammer, a soil taking pipe and a soil taking bin are designed into an integral structure; the soil taking bin is provided with a plurality of movable bin doors and the doors can move; and the opening and closing of the bin doors is controlled through steel wire ropes. On one hand, the situation that a bolt is adopted to limit the bin doors is avoided; and on the other hand, the soil is unloaded from the bin doors of the soil taking bin, the situation that the soil is left on the soil taking bin is avoided, and the soil unloading is thorough. The operation is semi-automatic and the efficiency is extremely high.

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 in the construction process. Commonly used methods of taking and unloading soil are: 1. The mud retaining wall is punched (drilled) and the mud circulation is used to realize the discharge of soil slag from the hole. 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...

AI Technical Summary

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 in the construction process. Commonly used methods of taking and unloading soil are: 1. The mud retaining wall is punched (drilled) and the mud circulation is used to realize the discharge of soil slag from the hole. 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

Images