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Mechanical Behavior Testing System of Pile-Soil Interaction in Controlled Stress Environment

A technology of interaction and testing system, which is applied in the test of basic structure, construction, basic structure engineering, etc., can solve the problems of oversimplification and idealization, and the distance between actual projects, etc., and achieve the effect of simple structure and flexible combination

Active Publication Date: 2018-11-06
WUHAN INSTITUTE OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under most environmental conditions, the foundations of buildings and structures are formed by the deposition and consolidation of various types of soil layers, or a composite geological landform formed by the combination of soil and rock. The foundation of a single soil type is the research object, which is too simple and idealized, and is far from the actual engineering

Method used

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  • Mechanical Behavior Testing System of Pile-Soil Interaction in Controlled Stress Environment
  • Mechanical Behavior Testing System of Pile-Soil Interaction in Controlled Stress Environment
  • Mechanical Behavior Testing System of Pile-Soil Interaction in Controlled Stress Environment

Examples

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Embodiment 1

[0039] Here, taking Example 1 as an example, the implementation steps of the present invention are described in detail. The scheme described by the accompanying drawings is exemplary and one of the research schemes, used to explain how the present invention works, and cannot be understood as a limitation of the present invention .

[0040] Here will refer to Figure 1-Figure 3 The process of studying the mechanical behavior of piles and soils when simulating the static pressure pile sinking process is described in detail. figure 1 It is a schematic diagram of the structure of the whole test system.

[0041] figure 1 The test system for the study of pile-soil mechanical behavior when simulating the static pressure pile sinking process includes: pile body mechanics simulation unit; foundation additional stress loading simulation unit; foundation soil total stress, pore water pressure and local deformation test unit; section steel loading reaction force Frame; foundation soil ...

Embodiment 2

[0060] Here, taking Example 2 as an example, the implementation steps of the present invention are described in detail. The scheme described by the accompanying drawings is exemplary and one of the research schemes, used to explain how the present invention works, and cannot be understood as a limitation of the present invention .

[0061] Here will refer to Figure 4 and Figure 5 The process of studying the mechanical behavior of piles and soils when simulating the static pressure pile sinking process under quasi-rigid confinement conditions is described in detail. Figure 4 It is a schematic diagram of the structure of the whole test system.

[0062] Figure 4 The test system for the study of the mechanical behavior of piles and soils when simulating the static pressure pile sinking process includes: static pressure pile sinking mechanics simulation unit; foundation additional stress loading simulation unit; foundation soil total stress, pore water pressure and local def...

Embodiment 3

[0081] Here, taking Example 3 as an example, the implementation steps of the present invention are described in detail. The scheme described by the accompanying drawings is exemplary and one of the research schemes, used to explain how the present invention works, and cannot be understood as a limitation of the present invention .

[0082] Here will refer to figure 2 , image 3 and Figure 6 The process of studying the mechanical behavior of piles and soils when simulating the dynamic pile sinking process is described in detail. Figure 6 It is a schematic diagram of the structure of the whole test system.

[0083] Figure 6 The test system for the study of pile-soil mechanical behavior when simulating the static pressure pile sinking process includes: pile body mechanical simulation unit; foundation additional stress loading simulation unit; foundation soil total stress, pore water pressure and local deformation test unit; section steel loading reaction force Frame; fou...

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Abstract

The invention discloses a pile-soil interaction mechanical behavior test system for controllable stress environment. The pile-soil interaction mechanical behavior test system comprises a static pressure pile sinking mechanical simulating unit, a foundation additional stress loading and simulating unit, a foundation soil total stress, pore water pressure and local deformation test unit, a section steel loading counter force frame, a foundation soil simulating test bin and a hammering pile sinking simulating unit, wherein the static pressure pile sinking mechanical simulating unit is in bolt fixation to a position above the section steel loading counter force frame; the foundation additional stress loading simulating unit is in bolt fixation to a position above the inner part of the section steel loading counter force frame; a sensor in the foundation soil total stress, pore water pressure and local deformation test unit is pre-buried into simulating foundation soil; the foundation soil simulating test bin is pushed to be just below the section steel loading counter force frame; and the hammering pile sinking simulating unit is in bolt fixation on the section steel loading counter force frame. According to the pile-soil interaction mechanical behavior test system disclosed by the invention, a composite foundation soil model can be manually manufactured; and in combination with a preset load provided by the foundation additional stress loading simulating unit at the upper part of the pile-soil interaction mechanical behavior test system, simulation of the soil layer total stress environment of different depths is realized.

Description

technical field [0001] The invention belongs to the field of mechanical behavior research of prefabricated piles and foundation soil around piles, and provides a multi-factor combination condition test and research platform for different types of combined foundation soils, different foundation additional stresses, and different types of pile sinking methods. Background technique [0002] With the construction of highways, high-speed railways, urban light rail transit and high-rise buildings in China, concrete prefabricated piles are commonly used as a type of deep foundation, and the geological environment is complex and diverse. It is of great significance to understand and master the mechanical behavior of pile foundation and its surrounding foundation soil for geotechnical engineering investigation and design. The distribution and change of additional foundation stress caused by pile foundations, superstructures and structures is controlled by the additional stress coeffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00
CPCE02D33/00E02D2600/10
Inventor 潘登夏元友张电吉吝曼卿代顺祥邓天赐韩瑞庭
Owner WUHAN INSTITUTE OF TECHNOLOGY