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首页 > 过刊浏览>2024年第47卷第10期 >37-45. DOI:10.11835/j.issn.1000.582X.2024.10.003
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温度循环作用下石窟砂岩渗透特性试验
作者:
作者单位:

1.大足石刻研究院，重庆 402360;2.重庆大学 土木工程学院，重庆 400044;3.重庆市地质矿产勘查开发局，重庆 401121

作者简介:

王成龙（1989—），男，博士，副教授，主要从事岩土工程方向的研究，(E-mail)wangclong@cqu.edu.cn。

通讯作者:

郭亚琛，男，研究生，主要从事岩土工程方向的研究，(E-mail)GuoYCh2023@163.com。

基金项目:

大足石刻研究院科研资助项目(H20220387)；重庆市技术创新与应用发展专项重点项目（CSTB2022TIAD-KPX0095）；重庆市自然科学基金创新发展联合基金项目（CSTB2022NSCQ-LZX0001）。


Experiments on permeability characteristics of grotto sandstone after temperature cycling
Author:
Affiliation:

1.Academy of Dazu Rock Carvings, Chongqing402360, P. R. China;2.College of Civil Engineering, Chongqing University, Chongqing400044, P. R. China;3.Chongqing Bureau of Geology and Minerals Exploration, Chongqing401121, P. R. China

Fund Project:

Supported by the Academy of Dazu Rock Carvings Foundation (H20220387), Special Key Project of Chongqing Technology Innovation and Application Development (CSTB2022TIAD-KPX0095), and Natural Science Foundation of Chongqing (CSTB2022NSCQ-LZX0001).

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    摘要:

    石窟岩体常年裸露在外，会受到多种自然因素的影响，尤其是温度变化和渗水等，可能导致岩体物理力学性质发生改变。针对温度循环作用下石窟砂岩的渗透特性开展研究，选取重庆大足石刻砂岩为研究对象，通过渗透试验，对多次冷热循环后石窟砂岩的渗透率进行测定和分析，并进一步研究了渗透试验后石窟砂岩的抗压强度特性。试验过程设计了不同冷热循环次数、不同高温持续时间、不同冷却方式等多种试验工况。研究结果表明：经过多次冷热循环，砂岩渗透率增加，并且渗透率变化幅度受循环次数和冷却方式的影响；当渗透压增大，砂岩渗透率增加；在高渗透压下渗透后，砂岩的强度稍小于低渗透压下的强度。

    Abstract:

    The rock mass of grotto temples, exposed year round, is influenced by natural factors, especially temperature fluctuations and water seepage, which change the rock’s physical properties. This paper investigates the permeability characteristics of Dazu grotto sandstone(Chongqing) after multiple heating-cooling cycles. Permeability tests are conducted under various conditions, such as cycle frequency, high temperature exposure durations, and cooling methods. Results show that sandstone permeability increases with heating-cooling cycles, influenced by the number of cycles and cooling methods. High permeability pressure also reduces sandstone’s compressive strength compared to low permeability pressure.

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王成龙,蒋思维,仉文岗,陈鹏举,刘东升,郭亚琛.温度循环作用下石窟砂岩渗透特性试验[J].重庆大学学报,2024,47(10):37-45.

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  • 收稿日期:2023-09-20
  • 在线发布日期: 2024-11-14
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