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Road rigid pile and preloading soft foundation treatment transition structure and construction method

A technology of surcharge preloading and soft foundation treatment, which is applied in the direction of infrastructure engineering, roads, roads, etc., and can solve problems such as uneven subsidence of the roadbed

Pending Publication Date: 2022-06-03
ZHEJIANG PROVINCIAL INST OF COMM PLANNING DESIGN & RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a transition structure and construction method for road rigid piles and surcharged preloaded soft foundation, which can solve the problem of uneven settlement of the subgrade in the transition section of two different soft foundation treatment forms

Method used

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  • Road rigid pile and preloading soft foundation treatment transition structure and construction method
  • Road rigid pile and preloading soft foundation treatment transition structure and construction method
  • Road rigid pile and preloading soft foundation treatment transition structure and construction method

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Embodiment

[0039] In the first aspect, the embodiments of the present application provide a transition structure for road rigid piles and piling preloaded soft foundation treatment, please refer to figure 1 , figure 2 and image 3 , the transition structure includes a transition section 200, the transition section 200 is arranged between the rigid pile treatment section 100 and the stacking preload section 300, and the transition section 200 sequentially includes a base rigid pile transition layer 260, a first embankment filling layer from bottom to top and the first pre-pressed layer 210, the base rigid pile transition layer 260 is inserted into the foundation; the first embankment filling layer is laid above the base rigid pile transition layer 260, and the first embankment filling layer includes filling with ordinary The ordinary embankment filling layer 230 of the filler; the first pre-pressed layer 210 is laid above the first embankment filling layer; wherein, the first embankment...

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Abstract

The embodiment of the invention provides a road rigid pile and preloading soft foundation treatment transition structure and a construction method, and belongs to the technical field of road foundation treatment. The transition structure sequentially comprises a base rigid pile transition layer, a first embankment filling layer and a first pre-pressing layer from bottom to top, and the base rigid pile transition layer is inserted into a foundation; the first embankment filling layer comprises a common embankment filling layer filled with common filler; the first prepressing layer is laid above the first embankment filling layer; wherein the first embankment filling layer further internally comprises a light embankment structure layer, the light embankment structure layer is laid on the common embankment filling layer, and the density of filler in the light embankment structure layer is smaller than that of filler in the common embankment filling layer; and in the extending direction from the rigid pile processing section to the preloading section, the ratio of the light embankment structure layer in the first embankment filling layer is gradually reduced. The transition structure can solve the problem of differential settlement of the transition section roadbed in two different soft foundation treatment forms.

Description

technical field [0001] The present application relates to the technical field of road foundation treatment, and in particular, to a transition structure and a construction method for road rigid piles and piling preloaded soft foundation treatment. Background technique [0002] In my country, especially in the eastern coastal areas, soft soils are widely distributed. Due to the flat topography, flat terrain and intensive human activities, road construction in soft soil areas is now very common. Because the soft soil foundation has the characteristics of high natural water content, large natural void ratio, low shear strength, and high compressibility, the natural soft foundation needs to be treated before the road can be built. Affected by the nature of soft soil, topography, subgrade fill height, construction conditions, investment conditions, etc., it is unavoidable to use two or more soft foundation treatment methods in the same project. [0003] For the road section with...

Claims

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Application Information

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IPC IPC(8): E01C3/00E01C3/06E01D19/12E02D27/12
CPCE01C3/00E01C3/06E01D19/125E02D27/12Y02A30/60
Inventor 胡永富孙洪月陈胜超刘志统史宇宙郭锐杨文宇
Owner ZHEJIANG PROVINCIAL INST OF COMM PLANNING DESIGN & RES CO LTD
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