Dynamic construction method for structure for improving foundation bearing capacity

Abstract

The invention aims at providing a dynamic construction method for a structure for improving the foundation bearing capacity. The method can be used for well dealing with the abnormal changes of a foundation and comprises the steps that the reconnaissance step of general situation reconnaissance detection is conducted; the design step is conducted, wherein a standard structure for improving the foundation bearing capacity is designed and corresponding structures are preset according to a general situation reconnaissance detection result and a design load requirement, the standard structure comprises a conical block layer which is formed by a plurality of conical blocks which are transversely arranged side by side, and each conical block comprises a cone part and a pile foot part; the construction step is conducted, wherein firstly, dynamic reconnaissance detection is conducted while standard structure construction is conducted, and secondly, when the bias exists between general situation reconnaissance detection and dynamic reconnaissance detection in a certain area, the proper preset structure is selected, construction is conducted according to the proper preset structure, and the parameters of the conical blocks are changed in the preset structure compared with those in the standard structure.

Description

technical field [0001] The invention relates to a construction method for foundation treatment. Background technique [0002] In the past, it is known to have structures for improving the bearing capacity of foundations having a layer of conical blocks (commonly known in the industry as "gyro piles") comprising a layer of conical blocks comprising juxtaposed A plurality of conical blocks, the conical block includes a conical body and a pile foot. For the structure used to improve the bearing capacity of the foundation, it is often constructed in this way. Firstly, the general survey and detection are carried out, and then the standard design is carried out based on the survey and detection results. , followed by construction in accordance with the standard design. The disadvantage of this method is that it does not consider that the geological conditions of the foundation are changeable. The survey and detection before construction is often different from the physical condi...

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Problems solved by technology

The disadvantage of this method is that it does not consider that the geological conditions of the foundation are changeable. The survey and detection before construction is often different from the physical condition of the actual foundation under construction, but the standard design is basically not significantly modified during construction. As a result, The structure used to improve the bearing capacity of the foundation after construction often does not meet the requirements of the upper load, causing the settlement of the conical block to be too large, or the posture is out of shape, or deformed, resulting in an overall uneven settlement

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