地质科技通报2024,Vol.43Issue(4) :235-243.DOI:10.19509/j.cnki.dzkq.tb20230174

浙江嵊州-新昌地区红层软岩崩解能量耗散研究

Energy dissipation during disintegration of red-bed soft rock in the Sheng-zhou-Xinchang area of Zhejiang Province,China

黄生根 何铭健
地质科技通报2024,Vol.43Issue(4) :235-243.DOI:10.19509/j.cnki.dzkq.tb20230174

浙江嵊州-新昌地区红层软岩崩解能量耗散研究

Energy dissipation during disintegration of red-bed soft rock in the Sheng-zhou-Xinchang area of Zhejiang Province,China

黄生根 1何铭健1
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作者信息

  • 1. 中国地质大学(武汉)工程学院,武汉 430074
  • 折叠

摘要

以浙江嵊州-新昌地区红层软岩为研究对象,探究该地区红层软岩崩解表面能特性.基于能量耗散原理,通过分析该地区3组不同组成成分的红层软岩在干湿循环作用下崩解过程中能量的转化、传递和耗散,得出红层软岩崩解过程中吸收的能量向表面能转化的规律.结果表明,该地区红层软岩随着干湿循环次数的不断增多,表面能累计增长量有3个变化过程:初期呈平缓增长;中期表面能急剧增加,增长速率越来越快;崩解后期其表面能累计增长量逐渐保持平稳状态.试验还表明黏土矿物含量越高的红层软岩,产生的表面能越多,耐崩解性越差.本研究提出的能量耗散模型,为治理浙江嵊州-新昌地区各种红层软岩问题提供了参考价值.

Abstract

[Objective]This study focused on the surface energy characteristics of red-bed soft rocks during disin-tegration in the Shengzhou-Xinchang area of Zhejiang Province.[Methods]Based on the principle of energy dissi-pation,this study analyzed the conversion,transfer,and dissipation of energy during the process of disintegration under dry-wet cycles for three groups of red-bed soft rocks,considering different compositions in the study area.This study aimed to explore the law of energy absorption and transformation into surface energy during the process of red-bed soft rock disintegration.[Results]The results show that the surface energy accumulation of the red-bed soft rock in the study area undergoes three stages with an increasing number of dry-wet cycles:a slow growth stage,a rapid growth stage,and a stable stage.The results also indicate that the higher the content of clay minerals in the red-bed soft rock is,the more surface energy it generates,and the poorer its resistance to disintegration.[Conclu-sion]The energy dissipation model proposed in this study provides a reference for the governance of various failure problems of the red-bed soft rock in the Shengzhou-Xinchang area of Zhejiang Province.

关键词

红层软岩/干湿循环/崩解现象/表面能/能量耗散

Key words

red-bed soft rock/dry and wet cycle/disintegration phenomenon/surface energy/energy dissipation

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基金项目

国家自然科学基金项目(42177166)

出版年

2024
地质科技通报
中国地质大学(武汉)

地质科技通报

CSTPCD北大核心
影响因子:1.018
ISSN:2096-8523
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