Holding device of static pressure pile driver

Abstract

The invention relates to a holding device of a static pressure pile driver. The holding device of the static pressure pile driver comprises a circular support, and a plurality of support tables, wherein the upper layer and the lower layer of the plurality of support tables are arranged on the inner side of the circular support and the support tables stretch toward the center of the circular support, and the plurality of support tables arranged on the upper layer of the inner side of the circular support and the plurality of support tables arranged on the lower layer of the inner side of the circular support are respectively on a same horizontal level. The holding device of the static pressure pile driver is characterized in that each support table is provided with a telescopic device, one end of the telescopic device is fixedly arranged on the support table, and the other end of the telescopic device is provided with a clamping plate. The plurality of clamping plates of the support tables on the upper layer of the circular support form an upper lamping group, the plurality of clamping plates of the support tables on the lower layer of the circular support form a lower lamping group, and each clamping plate is provided with a pressure sensor. Therefore, the phenomena of uneven stress of pile bodies and instability of the pile bodies cannot occur to the holding device of the static pressure pile driver, the holding device of the static pressure pile driver can greatly improve the stability of the pile bodies in a pilling process, and therefore the efficiency of pilling is improved.

Description

technical field [0001] The invention relates to an auxiliary device for a pile driver, in particular to a clamping device for a static pressure pile driver. Background technique [0002] In construction fields such as construction, highway bridges, etc., pile drivers are more and more widely used, and static pressure hugging pile drivers have attracted special attention due to their advantages of small size, stable work, no noise, and no disturbance to the people. The existing static pressure holding pile driver is mainly driven by a hydraulic device, and the pile is driven into the foundation through the friction between the clamp and the surface of the pile body. In this process, due to the certain error in the surface structure of the pile body and the clamp, As a result, uneven stress often occurs on the clamping surface, and because the pressure exerted by the hydraulic device is quite large, a small error may cause the pile body to be partially compressed and crushed, ...

AI Technical Summary

Problems solved by technology

The existing static pressure holding pile driver is mainly driven by a hydraulic device, and the pile is driven into the foundation through the friction between the clamp and the surface of the pile body. In this process, due to the certain error in the surface structure of the pile body and the clamp, As a result, uneven stress often occurs on the clamping surface, and because the pressure exerted by the hydraulic device is quite large, a small error may cause the pile body to be partially compressed and crushed, causing the pile body to be scrapped or its mechanical properties to be seriously damaged. fall, causing huge losses

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