A foundation pile hole forming device and hole forming method

Abstract

The invention discloses a foundation pile hole forming device which comprises a pile pipe and an insertion rod. The insertion rod is provided with a pipe pressing cover. An impact head with a sharp end is connected to the tail end of the insertion rod. In the use process, the insertion rod is arranged in the pile pipe and sleeved with the pile pipe and the upper end of the pile pipe abuts against the lower end of the pipe pressing cover. The invention further discloses a foundation pile hole forming method. The device and method have the beneficial effects that the pile pipe can be inserted in the preset underground position easily without damage in a manpower knocking manner or a mechanical impact manner, the requirement for a pile pipe material is lowered, work efficiency is improved, the insertion rod is reusable, and cost is effectively saved.

Description

technical field [0001] The invention relates to the field of land and water infrastructure construction, specifically a structure simple, fast and convenient to use, construction quality meets the design requirements, greatly improves work efficiency and reduces construction costs, expands the construction field, and is not affected by soil quality, construction conditions, and the environment. A hole-forming device and a hole-forming method for foundation piles. Background technique [0002] At present, in the construction of land and water projects, it is necessary to drive piles underground as the foundation, or build dams on both sides of the river to lay the foundation. During construction, it is necessary to form holes first, and then put reinforced cast concrete into the pile holes to obtain a strong finished product. The pile body bears the weight and pressure of the ground building. However, the formation of existing pile holes is generally to be dug by hand. In or...

AI Technical Summary

Problems solved by technology

These construction methods must be carried out under good ground construction conditions, affected by geological conditions and the environment, and the construction speed is slow, the cost is high, and the risk is high, especially in the revetment construction on both sides of the river or water construction, there is no dry water It cannot be implemented at all; in the current water conservancy construction, such as the construction of dams, it is necessary to intercept or surround the flow, and the construction still adopts the traditional old method of moving mountains and filling the sea to stop the flow; using soil to fill from the bank to the outside until the river is filled Fill or fill up the target area and drain the water to provide conditions for dry water construction. After the project is completed, the filled sand and soil will be removed and transported away. In this way, the construction speed will be slow, the cost will increase exponentially, and the closure will affect There is also a kind of embankment construction, which is to bring water into the river and fill gabions or large stones until the water surface is filled to form an embankment. In this way, not only the embankment is not built well, but also the space of the river is occupied, resulting in Rivers are blocked, etc.; therefore, the traditional construction speed is slow, the construction cost is high, the safety of the construction process cannot be guaranteed, the construction effect is very unsatisfactory, and the construction progress cannot be improved, the project cost can be reduced and the process quality can be improved; in the embankment construction of small rivers, sometimes The method of piling is also used to intercept the rocks on the bank. However, in the ground where there are many underground stones in the river and the ground is hard, the existing hole-forming method is very inefficient.

Some projects need to drive iron pipe piles with a depth of about 1.5 meters and a diameter of about 10 cm into the ground; The purpose of driving the piles into the ground, this kind of driving method is barely enough for the original soil without impurities, if you encounter some backfill soil, construction waste, debris in the soil or construction in the river, small stones in the river , it is difficult to get in, and the intended effect cannot be achieved.

Because, firstly, the hollow iron pipe is difficult to drive into the set position underground, and secondly, the pile body will be bent and deformed due to great resistance, and the construction efficiency is extremely low.

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