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Water circulation type foundation heating device and construction method of dewatering of soft soil foundation using the same

A heating device and construction method technology, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of small strength increase and failure to meet the requirements of foundation use, etc., to achieve effective stress increase, reasonable design, and reinforcement quality Guaranteed effect

Pending Publication Date: 2017-09-01
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the conventional drainage consolidation method is used to strengthen the newly dredged and filled mud and floating mud. After 3 to 5 months of preloading and reinforcement, the settlement of the foundation is relatively significant, often exceeding the theoretical calculation by a lot, but the strength after reinforcement The increased value is small and cannot meet the use requirements of the foundation

Method used

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  • Water circulation type foundation heating device and construction method of dewatering of soft soil foundation using the same
  • Water circulation type foundation heating device and construction method of dewatering of soft soil foundation using the same
  • Water circulation type foundation heating device and construction method of dewatering of soft soil foundation using the same

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Embodiment 1

[0032] See attached figure 1 , a water circulation type foundation heating device, comprising an electric heating furnace 6.1 and a plurality of U-shaped steel pipes 6.2, the top of each U-shaped steel pipe is a water inlet 6.6 and a water outlet 6.7, the overall height of the U-shaped steel pipe is 5-10 meters, U The U-shaped steel pipe is spliced ​​by the U-shaped head 6.3 and the multi-section straight steel pipe 6.4 with a length of 1 meter through the thread 6.5, thereby facilitating the assembly and transportation of the U-shaped steel pipe; the opposite two-section straight steel pipe 6.4 of each U-shaped steel pipe is used to hold The hoop 6.8 is connected to strengthen the strength of the U-shaped steel pipe, and on the hoop 6.8 of the two straight steel pipes 6.4 at the top, the drag cable 6.9 is connected. 6.2 Pull out the foundation;

[0033] The electric heating furnace has a circulating water outlet 6.11, a circulating water return port 6.12 and a water injecti...

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Abstract

The present invention discloses a water circulation type foundation heating device and a construction method of dewatering of a soft soil foundation using the same. The water circulation type foundation heating device comprises an electric heating furnace and a plurality of U-shaped steel pipes. The U-shaped steel pipes are driven into a soft soil foundation. A circulating water outlet and a circulating water return inlet of the electric heating furnace sequentially connect water inlets and water outlets of all the U-shaped steel pipes in series to form a water circulation loop. During construction, the water circulation type foundation heating device is combined with a vacuum preloading method; water at the later period of foundation consolidation is mainly discharged in the gaseous form; thus, dewatering and solidification of soil are accelerated, and the strength of the consolidated foundation is improved with a reduction in post-construction settlement and a good foundation treatment effect.

Description

technical field [0001] The invention belongs to the technical field of large-area soft soil foundation treatment, in particular to a water circulation type foundation heating device and a construction method for dewatering soft soil foundation using the device. Background technique [0002] The prominent feature of the newly dredged supersoft soil is that the surface strength is extremely low, and its foundation treatment is a recognized problem at home and abroad. This kind of foundation is generally reinforced by drainage consolidation method. In my country, surcharge preloading method, vacuum preloading method or vacuum combined surcharge preloading method are mainly used. However, the conventional drainage consolidation method is used to reinforce the newly dredged and filled mud and floating mud. After 3 to 5 months of preloading and reinforcement, the settlement of the foundation is relatively significant, often exceeding the theoretical calculation by a lot, but the s...

Claims

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Application Information

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IPC IPC(8): E02D3/11E02D3/10E02D19/20
CPCE02D3/10E02D3/11E02D19/20
Inventor 尹长权刘润
Owner TIANJIN UNIV
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