Title:
杭端に空洞が存在することによる杭基礎の軸受性能への影響をシミュレーションする試験装置及び試験方法
Document Type and Number:
Japanese Patent JP7236781
Kind Code:
B2
Abstract:
Disclosed in the present invention are a testing apparatus and testing method for simulating an influence of a cavity existing near a pile end on bearing performance of a pile foundation. The testing apparatus comprises a semicircular model box, an organic glass plate, a water injection system, a loading motor, and an industrial camera. According to the present invention, the water injection system is used to inject water into a sandy soil layer in the model box to simulate the case where an underground pipeline is broken and water overflows and the resulting case where a cavity appears in a soil layer; a control point and a mark point are provided in a sandy soil layer area, and the process of cavity formation and the displacement of sandy soil particles in the sandy soil layer during the loading process of a model pile are analyzed by means of the particle image velocimetry method and according to a photo taken by the industrial camera. The present invention has a reasonable structure and a simple operation, can be used for studying the influence of the cavity existing near the pile end on the bearing performance of the pile foundation, and the influence rule of different cavity positions and different cavity sizes on the bearing performance of the pile foundation, and provides an effective means for studying the influence of the cavity existing near the pile end on the bearing performance of the pile foundation.
Inventors:
周 佳▲錦▼
▲兪▼ 建霖
▲ゴン▼ ▲暁▼南
▲兪▼ 建霖
▲ゴン▼ ▲暁▼南
Application Number:
JP2022504726A
Publication Date:
March 10, 2023
Filing Date:
April 26, 2021
Export Citation:
Assignee:
ZHEJIANG UNIVERSITY
International Classes:
E02D1/00; E02D27/12
Domestic Patent References:
| JP4155238A |
Foreign References:
| CN105696632A | ||||
| CN110331743A | ||||
| CN109920318A | ||||
| CN109868849A | ||||
| CN108982321A |
Other References:
小椋仁志、上紺屋好行、山肩邦男、高田直俊,遠心模型による摩擦杭の貫入実験,第23回土質工学研究発表会,日本,土質工学会,1988年06月,pp. 1405 - 1408
上田祥弘、土屋勉、佐藤光、島田正夫、安田達士、角田真由子,薄層に圧入した杭の挙動に関する模型実験,日本建築学会北海道支部研究報告集,日本,日本建築学会北海道支部,2009年07月,No. 82,pp. 193 - 196
上田祥弘、土屋勉、佐藤光、島田正夫、安田達士、角田真由子,薄層に圧入した杭の挙動に関する模型実験,日本建築学会北海道支部研究報告集,日本,日本建築学会北海道支部,2009年07月,No. 82,pp. 193 - 196
Attorney, Agent or Firm:
Nishiuchi Moriji