Hole forming device and foundation treatment method

Abstract

The invention provides a hole forming device. The hole forming device is reliable and stable in hole formation, high in efficiency, low in pollution noise, environmentally friendly, and high in efficiency. The hole forming device comprises a control panel and a supporting device. A driving device and a movable arm are arranged on the control panel. The movable arm is in transmission connection with the driving device. One end of the movable arm is hinged to the control panel, and the other end of the movable arm is hinged to the supporting device. The driving device is used for driving the movable arm to rotate so as to move the supporting device. The supporting device extends in a first direction. A hydraulic vibration device is movably arranged on the supporting device and can move on the supporting device in a first direction. The hydraulic vibration device is connected with an immersed tube which extends in a first direction. The hydraulic vibration device is used for driving the immersed tube to move in the first direction and to vibrate to form a hole. The invention further provides a foundation treatment method adopting the hole forming device. A foundation treated through the method has a good soil compaction effect and is high in bearing capacity.

Description

technical field [0001] The invention belongs to the field of engineering geological treatment, and in particular relates to a pore-forming device and a ground treatment method. Background technique [0002] At present, the ground treatment methods widely used in the loess area include the immersed tube hole compaction method, the soil compaction method in the hole (DDC method) and the deep super-dynamic compaction method in the hole (SDDC method). Collapsibility is the main purpose, and at the same time, the purpose is to improve the bearing capacity of the foundation. The immersed tube compaction method is to form a hole with the immersed tube. The process of the immersed tube will cause a compaction effect on the foundation soil. After the hole is formed, the filling will be compacted to form a pile. The mechanical diesel hammer is often used to hammer the immersed tube to form a hole. This method is very polluting. , The diameter of the piles and the distance between the...

AI Technical Summary

Problems solved by technology

The immersed tube compaction method is to form a hole with the immersed tube. The process of the immersed tube will cause a compaction effect on the foundation soil. After the hole is formed, the filling will be compacted to form a pile. The mechanical diesel hammer is often used to hammer the immersed tube to form a hole. This method is very polluting. , The diameter of the piles and the distance between the piles are small; the soil compaction method in the hole uses a long spiral to take the soil to form a hole, and then tamping and filling. This method has a small diameter and distance between the piles, and the pile formation process is affected by many human factors. , the quality is difficult to control; the SDDC construction method is named after the hole is pre-drilled, and the filling is hammered into a pile by a heavy hammer in the hole. The filler is forced to squeeze around to expand the pile diameter, thereby causing a compaction effect on the foundation soil. The commonly used hole-forming machine is a rotary drilling rig. This method has a large vibration and cannot be constructed on an existing site; these three compaction methods have practical application effects Both have their own advantages and disadvantages, and each has its own limitations.

At the same time, with the country's emphasis on environmental issues and the improvement of people's awareness of environmental protection, traditional foundation treatment methods have problems such as serious pollution, loud noise, and great impact on the environment, which can no longer meet the needs of the market and social development.

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