天荒坪抽水蓄能电站上水库沥青混凝土面板封闭层加速老化试验研究

大坝与安全 ›› 2017 ›› Issue (5): 11-.

天荒坪抽水蓄能电站上水库沥青混凝土面板封闭层加速老化试验研究

周俊杰¹，周民权¹，王登银²，王樱畯²，李强²，郝巨涛³，汪正兴³

1.华东天荒坪抽水蓄能有限责任公司，浙江安吉，313302；2.中国电建集团华东勘测设计研究院有限公司，浙江杭州，311122；3.中国水利水电科学研究院，北京，100038

收稿日期:2016-11-10 出版日期:2017-10-08 发布日期:2017-10-08
作者简介:周俊杰（1987- ），男，湖北天门人，工程师，从事水电站水工建筑物运行与维护管理。

Experimental study on accelerated aging of asphalt concrete sealing layer of upper reservoir of Tianhuangping pumped storage power station

ZHOU Jun- jie, ZHOU Min- quan, WANG Deng- yin, WANG Ying-jun, LI Qiang, HAO Ju-tao and WANG Zheng-xing

Tianhuangping Pumped Storage Power Plant

Received:2016-11-10 Online:2017-10-08 Published:2017-10-08

摘要/Abstract

摘要： 结合天荒坪上水库沥青混凝土封闭层的实际情况，对未脱落部位的封闭层现场取样、实验室回收沥青进行试验检测，结果发现：封闭层严重老化，从现场取回的沥青玛蹄脂中回收的沥青在常温下已相当硬、脆，沥青的针入度和延度几乎都降为0，黏度已升至普通沥青的60倍左右。为探索沥青混凝土封闭层的老化寿命，在实验室进行了沥青玛蹄脂的紫外光加速老化试验。从试验结果可以看出，在45℃~55℃范围内，温度对老化的影响很小，这和以往的研究结论较为符合。在同一温度条件下，针入度随着老化时间逐渐降低，软化点和黏度随着老化时间逐渐升高。老化速度随着紫外辐射强度的升高而升高。

关键词: 天荒坪抽水蓄能电站, 上水库, 封闭层, 加速老化

Abstract: Combined with the actual situation of the asphalt concrete sealing layer of Tianhuangping reservoir, laboratory testing of asphalt which is sampled on-site is carried out. The results show that the sealing layer is severely aged and the mastic recovered from the asphalt is quite hard at normal temperature. The penetrability and ductility of asphalt have reduced to 0 and the viscosity has risen to about 60 times of normal asphalt. In order to explore the aging life of asphalt concrete sealing layer, the accelerated aging test of asphalt mastic is carried out in the laboratory. From the test results, it can be seen that in the 45 ℃ ~ 55 ℃, there is only a little influence of temperature on aging. This is in line with the previous research conclusions. At the same temperature, the penetration decreases gradually with the aging time, while the softening point and viscosity increase. The aging rate quickens with the increase of UV radiation intensity.

Key words: Tianhuangping pumped storage power station, upper reservoir, closure layer, accelerated aging

周俊杰，周民权，王登银，王樱畯，李强，郝巨涛，汪正兴. 天荒坪抽水蓄能电站上水库沥青混凝土面板封闭层加速老化试验研究[J]. 大坝与安全, 2017, 0(5): 11-.

ZHOU Jun- jie, ZHOU Min- quan, WANG Deng- yin, WANG Ying-jun, LI Qiang, HAO Ju-tao and WANG Zheng-xing. Experimental study on accelerated aging of asphalt concrete sealing layer of upper reservoir of Tianhuangping pumped storage power station[J]. dam, 2017, 0(5): 11-.

[1]	张利军，刘占海，刘凤成，胡五星. 张河湾抽水蓄能电站上水库渗流观测[J]. 大坝与安全, 2017, 0(5): 35-.
[2]	周俊杰，周民权. 天荒坪抽水蓄能电站下库大坝沉降变形分析[J]. 大坝与安全, 2015, 0(5): 58-.
[3]	吴宏炜，沈静. 天荒坪电站上水库进出水口截水墙帷幕补强灌浆试验[J]. , 2011, 0(6): 42-45.
[4]	焦修明. 天荒坪抽水蓄能电站水工监测系统改造[J]. , 2011, 0(2): 24-27.
[5]	崔弘毅编译. Taum Sauk抽水蓄能工程系列报道（III）—Taum Sauk上水库的重建[J]. , 2011, 0(1): 67-74.
[6]	黄小应，吴宏炜，焦修明. 天荒坪抽水蓄能电站水工监测系统的应用发展[J]. , 2008, 0(1): 28-30.
[7]	黄小应, 焦修明. 天荒坪抽水蓄能电站大坝安全管理和信息化建设概述[J]. , 2007, 0(5): 18-20.
[8]	周民权, 焦修明. 天荒坪电站6 号钢管外排水管问题的分析[J]. , 2006, 0(4): 12-14.
[9]	彭涛. 十三陵蓄能电站上水库安全监测自动化系统运行情况[J]. , 2005, 0(1): 35-37.
[10]	彭涛. 十三陵蓄能电站上水库安全监测自动化系统[J]. , 2002, 0(4): 29-31.