[1]徐鹏飞,管成,张厚江*,等. 用于树干内部缺陷筛查的应力波临界波速确定研究[J].西北林学院学报,2022,37(1):222-229.[doi:10.3969/j.issn.1001-7461.2022.01.33]
　XU Peng-fei,GUAN Cheng,ZHANG Hou-jiang*,et al. Determination of the Stress Wave Threshold Velocity for Screening Trunk Internal Defects[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2022,37(1):222-229.[doi:10.3969/j.issn.1001-7461.2022.01.33]
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 用于树干内部缺陷筛查的应力波临界波速确定研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第37卷
期数:
2022年第1期
页码:
222-229
栏目:
出版日期:
2022-01-31

文章信息/Info

Title:
 Determination of the Stress Wave Threshold Velocity for Screening Trunk Internal Defects
文章编号:
1001-7461(2022)01-0222-08
作者:
 徐鹏飞1; 2; 管成1; 2; 张厚江1; 2*; 宋海欧3; 袁江玉4; 段超5; 郭旺1; 2
 （1.北京林业大学 工学院，北京 100083；2.木材无损检测国际联合研究所，北京林业大学，北京 100083；3.北京市古代建筑研究所，北京 100050；4.北京市昌平区十三陵特区办事处，北京 102213；5.北京市天坛公园管理处，北京 100061）
Author(s):
 XU Peng-fei1; 2; GUAN Cheng1; 2; ZHANG Hou-jiang1; 2*; SONG Hai-ou3; YUAN Jiang-yu4; DUAN Chao5; GUO Wang1; 2
 (1.School of Technology,Beijing Forestry University,Beijing 100083,China; 2.Joint International Research Institute of Wood Nondestructive Testing and Evaluation,Beijing Forestry University,Beijing 100083,China; 3.Beijing Institute of Ancient Architecture,Beijing 100050,China; 4.Administration Office of the Ming Tombs in Changping District,Beijing 102213,China; 5.Administration Office of the Temple of Heaven Park,Beijing 100061,China)
关键词:
 ; 树干内部缺陷; 缺陷筛查; 应力波; 临界波速
Keywords:
 ; trunk defect;  defect screening;  stress wave;  threshold velocity
分类号:
S781.1
DOI:
10.3969/j.issn.1001-7461.2022.01.33
文献标志码:
A
摘要:
 古树和部分城市大树的树干内部，经常有空洞、腐朽等影响树木健康和安全性的缺陷存在。以筛查古树和城市大树树干内部缺陷为目标，测定了北京地区几种常见树种的古树和城市大树健康树干的多个径向应力波波速，对每个树种的应力波波速测量值进行了正态统计分析，基于95%置信水平原则确定了用于判别树干内部是否存在缺陷的应力波临界波速值，进而形成了用于树干内部缺陷筛查的应力波临界波速的确定方法。结果表明，北京地区8种常见古树及城市大树油松、白皮松、侧柏、桧柏、刺槐、英桐、美桐和银杏的树干径向应力波临界波速值分别为1 225、1 394、1 620、1 864、2 055、1 639、1 485、1 728 m·s-1。树干内部缺陷筛查验证性试验表明，形成的应力波临界波速确定方法是可行的。
Abstract:
 There are often hollows,decay and other defects inside the trunks of ancient and some large urban trees,which may compromise their health and safety.The purpose of this study was to develop a method to screen the internal defects in trunks of ancient trees and large urban trees.Multiple radial stress wave velocities were measured in the healthy trunks of several common tree species occurring in Beijing.These stress wave velocity measurements were subjected to normal statistical analysis to identify the stress wave threshold velocity for determining the presence of defects inside tree trunk based on the 95% confidence principle.Eventually,the method of determining stress wave threshold velocity for trunk internal defect screening was summarized and developed.Radial stress wave threshold velocities of 8 common ancient trees and large urban trees in Beijing were obtained as well.These velocities were 1 225,1 394,1 620,1 864,2 055,1 639,1 485,and 1 728 m·s-1 for Pinus tabuliformis,P.bungeana,Platycladus orientalis,Sabina chinensis,Robinia pseudoacacia,Platanus×acerifolia,P.occidentalis,and Ginkgo biloba,respectively.The verification test showed that the critical wave velocity determination method developed in this paper was feasible.

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备注/Memo

备注/Memo:
 收稿日期：2021-02-02修回日期：2021-03-30
基金项目：中央高校基本科研业务费专项基金(2021ZY71)；北京市文物局2018年课题：北京文化遗产保护实践探索研究（一）——树木对文物建筑保存状态影响研究（一期）；北京市公园管理中心科技课题（zx2020002）。
第一作者：徐鹏飞，博士生。研究方向：树木无损检测。E-mail：xupengfei.nick@foxmail.com
*通信作者：张厚江，教授。研究方向：木材无损检测。E-mail:hjzhang6@bjfu.edu.cn
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