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A platform for research: civil engineering, architecture and urbanism
Testing device and testing method for studying degradation of shearing strength of pile-soil interface under dynamic load
The invention relates to a test device and a test method for studying degradation of shear strength of a pile-soil interface under dynamic load. The test device comprises a frame assembly, a sample mold assembly, a model test assembly, a dynamic disturbance load loading assembly, a vertical loading assembly and a data acquisition assembly. The test device provided by the invention can simulate the shear strength degradation characteristics of the pile-soil interface under different dynamic disturbance loads, and simulates different dynamic disturbance load strengths and disturbance times by changing the height and impact times of the loading steel ball, so that the bearing characteristics and change rules of the pile foundation under the action of the dynamic disturbance loads are further analyzed, and the test result is more accurate. The problem that the change characteristics of the pile-soil interface in the actual construction disturbance process cannot be accurately simulated in the prior art is solved, and a scientific basis is provided for engineering design and construction. According to the test device provided by the invention, the falling height of the loading steel ball can be adjusted to simulate dynamic disturbance loads with different strengths and times borne by the pile-soil system.
本发明涉及一种研究动载下桩土界面抗剪强度劣化的试验装置及试验方法，上述试验装置包括框架组件、试样模具组件、模型试验组件、动力扰动荷载加载组件、竖向加载组件以及数据采集组件。本发明提供的试验装置可以模拟不同动力扰动荷载下桩‑土界面抗剪强度劣化特性，通过改变加载钢球的高度和冲击次数，模拟不同动力扰动荷载强度和扰动次数，从而进一步分析桩基础在动力扰动荷载作用下的承载特性和变化规律，解决了现有技术中无法准确模拟桩‑土界面在实际施工扰动过程中变化特性，为工程设计和施工提供科学依据；本发明提供的试验装置可通过调整加载钢球下落的高度，模拟桩‑土体系受到的不同强度和次数的动力扰动荷载。
Testing device and testing method for studying degradation of shearing strength of pile-soil interface under dynamic load
The invention relates to a test device and a test method for studying degradation of shear strength of a pile-soil interface under dynamic load. The test device comprises a frame assembly, a sample mold assembly, a model test assembly, a dynamic disturbance load loading assembly, a vertical loading assembly and a data acquisition assembly. The test device provided by the invention can simulate the shear strength degradation characteristics of the pile-soil interface under different dynamic disturbance loads, and simulates different dynamic disturbance load strengths and disturbance times by changing the height and impact times of the loading steel ball, so that the bearing characteristics and change rules of the pile foundation under the action of the dynamic disturbance loads are further analyzed, and the test result is more accurate. The problem that the change characteristics of the pile-soil interface in the actual construction disturbance process cannot be accurately simulated in the prior art is solved, and a scientific basis is provided for engineering design and construction. According to the test device provided by the invention, the falling height of the loading steel ball can be adjusted to simulate dynamic disturbance loads with different strengths and times borne by the pile-soil system.
本发明涉及一种研究动载下桩土界面抗剪强度劣化的试验装置及试验方法，上述试验装置包括框架组件、试样模具组件、模型试验组件、动力扰动荷载加载组件、竖向加载组件以及数据采集组件。本发明提供的试验装置可以模拟不同动力扰动荷载下桩‑土界面抗剪强度劣化特性，通过改变加载钢球的高度和冲击次数，模拟不同动力扰动荷载强度和扰动次数，从而进一步分析桩基础在动力扰动荷载作用下的承载特性和变化规律，解决了现有技术中无法准确模拟桩‑土界面在实际施工扰动过程中变化特性，为工程设计和施工提供科学依据；本发明提供的试验装置可通过调整加载钢球下落的高度，模拟桩‑土体系受到的不同强度和次数的动力扰动荷载。
Testing device and testing method for studying degradation of shearing strength of pile-soil interface under dynamic load
一种研究动载下桩土界面抗剪强度劣化的试验装置及试验方法
ZHANG ZHEN (author) / WANG JUNHAO (author) / SUN JINSHAN (author) / YAO YINGKANG (author) / JIANG NAN (author) / XIE QUANMIN (author)
2024-12-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Pile-soil contact surface shearing mechanical property testing device
| European Patent Office | 2020
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