渠道冻胀离心模型试验设备的研制

黄英豪; 蔡正银; 张晨; 徐光明; 洪建忠; 赵宝忠

doi:10.11779/CJGE201504006

渠道冻胀离心模型试验设备的研制 English Version

黄英豪^{1, 2},
蔡正银^{1, 2},
张晨^{1, 2},
徐光明^{1, 2},
洪建忠³,
赵宝忠³

1. 南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏南京 210024; 2. 南京水利科学研究院岩土工程研究所,江苏南京 210024; 3. 中国工程物理研究院总体工程研究所,四川绵阳 621900

基金项目: 水利部公益性行业科研专项（201201037）; 国家自然科学基金项目（51209142）; 江苏省自然科学基金项目（BK2012067）; 南京水利科学研究院国家重点实验室基本科研业务费项目（Y314006）

详细信息

作者简介:
黄英豪(1979- ),男,山东菏泽人,博士,高级工程师,主要从事环境岩土工程和渠道防渗防冻胀方面的研究。E-mail: ythuangyingaho@163.com。

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出版历程
- 收稿日期: 2014-08-13
- 发布日期: 2015-05-05

Development of centrifugal model test facility for frost-heave of channels

1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210024, China; 2. Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, China; 3. General Engineering Research Institute, China Academy of Engineering Physics, Mianyang 621900, China

摘要

摘要: 输水渠道冻胀破坏是寒冷地区渠道破坏的主要表现。研制了一套在土工离心机中进行渠道冻胀模拟的试验设备,该设备主要包括冻融模型箱、循环冷却水系统、测量控制系统等组成。冻融模型箱采用内外两层结构,中间填充保温材料。循环冷却水系统采用12组半导体制冷片,利用其帕尔贴效应实现制冷/热。采用高压水泵驱动水流并结合风冷散热器,持续为制冷器循环冷却,实现了在离心机不具备水旋转接头下的循环水利用。开发了直流回弹式位移测量系统的安装装置,保证了测量系统的准确。利用该设备进行了北疆地区输水渠道的冻胀模拟,试验结果规律好,可以正确的模拟冻胀温度场和位移场。渠道冻胀离心模型试验设备的研制为寒冷地区输水渠道冻胀问题的研究提供了有力工具。
- 渠道 /
- 冻胀 /
- 离心模型试验 /
- 循环冷却水 /
- 研制
Abstract: Frost-heave damage is the main reason for the channels in seasonal frozen regions. A new device is developed for simulating the frost-heave phenomenon of channels. It mainly includes the freeze-thaw model container, the circulating cooling water system and the measurement control system. The freeze-thaw model container consists of internal and external structures, and thermal insulation materials are filled between them. The circulating cooling water system adopts 12 groups of semiconductor chilling plates, and cooling or heating is accomplished by the Peltier effects. The high-pressure pump combined with the air cooling radiator realizes a continuous cooling for the system without hydraulic rotating joints. The installation device for the direct rebound displacement sensors is developed to ensure the accurate measurement. The whole device is used to study the frost-heave damage of a channel. The test results show a good regularity with correct simulation of both the temperature and displacement fields, indicating that this facility is effective for the simulation tests on frost-heave of channels.
- channel /
- frost-heave /
- centrifugal model test /
- circulating cooling water /
- development

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参考文献(17)

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