Integrated pile cap forming device and construction method

Abstract

The invention discloses an integrated pile cap forming device and a construction method. The integrated pile cap forming device comprises a support, a pile cap forming drill bit installed below the support, a rotation driving device driving the pile cap forming drill bit to continuously rotate, and a lifting device driving the support to vertically move along the center axis of the pile cap forming drill bit. The pile cap forming drill bit is in a cylindrical shape and comprises a hollow sleeve and a spiral blade arranged on the outer side wall of the hollow sleeve from top to bottom. The hollow sleeve is arranged on the support and is in transmission connection with the rotation driving device. The construction method comprises the steps that firstly, the pile cap forming device is installed; secondly, pile body concrete pouring construction is conducted; thirdly, the pile cap forming device conducts downward drilling, and a soil model is formed; fourthly, pile cap concrete pouring construction is conducted; and fifthly, a pile cap is formed. The integrated pile cap forming device and the construction method are reasonable in design, easy and convenient to construct and good in using effect; the pile cap construction process can be synchronously and automatically finished in the pile body construction process, construction is easy, convenient and rapid, the construction process is easy to control, and the quality of the constructed and formed pile cap is high.

Description

technical field [0001] The invention belongs to the technical field of pile foundation construction, and in particular relates to an integrated pile cap former and a construction method. Background technique [0002] Nowadays, after the bored pile is formed, the pile cap is usually constructed manually, and the pile cap is generally a concrete structure. Such as Figure 1-1 to Figure 1-6 As shown, when the pile cap construction is carried out manually, the construction process mainly includes the following steps: the first step, after the drill hole 1-1 is formed, the drill pipe 1-2 is lifted up and passed through the drill pipe 1-2 to drill the hole 1-1 pouring concrete, see Picture 1-1 In the second step, the drill pipe 1-2 is lifted up to the outside of the borehole 1-1, and after the concrete poured in the borehole 1-1 is solidified, the cast-in-place pile body 1-3 is obtained. In order to ensure the quality of the pile head, The top elevation of cast-in-situ piles 1-...

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Problems solved by technology

[0003] There are the following main problems in the method of using the above-mentioned artificial method for pile cap construction: first, the construction efficiency is low: only 3 to 5 pile caps can be constructed per person per day; second, the cost is high: pure manual production, high labor cost ;Third, the construction quality is uncontrollable: due to the non-standard operation of the construction personnel, the construction quality of the pile cap cannot be effectively guaranteed; Fourth, the construction process is complicated and the labor intensity is high; Construction, affecting the construction period of bored piles

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