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A new anti-seepage structure between the asphalt concrete slab and geomembrane is proposed, which eliminates the concrete connecting plate and adopts backfilling elastomeric epoxy mortar into drilling holes. The mechanical and impervious properties, as well as anchoring parameters of the connecting joints in the anchorage area, are experimentally studied. It is found that the torsional and anti-pulling performance of the proposed anchoring approach is reliable. The suggested double-channel anchoring approach is more compatible with the large deformation of the geomembrane under a pressure of 0.4MPa. According to the results, optimal drilling parameters are proposed, which have the features of good porosity, reliable impermeability and less impact on the asphalt slab, providing a reference for engineering design.

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针对库岸沥青混凝土面板与库底土工膜的连接型式,提出了取消混凝土连接板,利用钻孔回填弹性环氧砂浆的方式将两种防渗体直接连接的新型结构设计方案,并通过模型试验,研究防渗连接结构锚固区接头部位的力学性能、抗渗性能及锚固参数。结果表明,所提方法锚固区抗拉拔、抗扭性能安全可靠,建议的双道锚固方案可更好地适应0.4 MPa水头下土工膜发生滑移大变形时的防渗要求。根据试验结果提出了优化钻孔参数,具有成孔性好、防渗可靠、对面板整体性影响较小的特点,可为实际工程设计提供参考。

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王樱畯(1969-),男,正高级工程师,研究方向为水电工程水工设计与咨询,E-mail:

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王樱畯(1969-),男,正高级工程师,研究方向为水电工程水工设计与咨询,E-mail:

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王樱畯(1969-),男,正高级工程师,研究方向为水电工程水工设计与咨询,E-mail:

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沥青混凝土面板与土工膜防渗连接结构试验研究
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王樱畯 1, 2 , 宁志远 1, 2 , 叶谦 1
水电能源科学 | 大坝安全与监测 2023,41(8): 113-116
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水电能源科学 | 大坝安全与监测 2023, 41(8): 113-116
沥青混凝土面板与土工膜防渗连接结构试验研究
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王樱畯1, 2 , 宁志远1, 2, 叶谦1
作者信息
  • 1.中国电建集团华东勘测设计研究院有限公司,浙江 杭州 311122
  • 2.浙江省抽水蓄能工程技术研究中心,浙江 杭州 311122
  • 王樱畯(1969-),男,正高级工程师,研究方向为水电工程水工设计与咨询,E-mail:

Experimental Study on Anti-seepage Connection Structure of Asphalt Concrete Slab and Geomembrane
Ying-jun WANG1, 2 , Zhi-yuan NING1, 2, Qian YE1
Affiliations
  • 1.Power China Huadong Engineering Co., Ltd., Hangzhou 311122, China
  • 2.Zhejiang Pumped Storage Engineering Technology Research Center, Hangzhou 311122, China
出版时间: 2023-08-25 doi: 10.20040/j.cnki.1000-7709.2023.20221683
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针对库岸沥青混凝土面板与库底土工膜的连接型式,提出了取消混凝土连接板,利用钻孔回填弹性环氧砂浆的方式将两种防渗体直接连接的新型结构设计方案,并通过模型试验,研究防渗连接结构锚固区接头部位的力学性能、抗渗性能及锚固参数。结果表明,所提方法锚固区抗拉拔、抗扭性能安全可靠,建议的双道锚固方案可更好地适应0.4 MPa水头下土工膜发生滑移大变形时的防渗要求。根据试验结果提出了优化钻孔参数,具有成孔性好、防渗可靠、对面板整体性影响较小的特点,可为实际工程设计提供参考。

沥青混凝土面板  /  土工膜  /  锚固  /  弹性环氧砂浆  /  抗渗试验

A new anti-seepage structure between the asphalt concrete slab and geomembrane is proposed, which eliminates the concrete connecting plate and adopts backfilling elastomeric epoxy mortar into drilling holes. The mechanical and impervious properties, as well as anchoring parameters of the connecting joints in the anchorage area, are experimentally studied. It is found that the torsional and anti-pulling performance of the proposed anchoring approach is reliable. The suggested double-channel anchoring approach is more compatible with the large deformation of the geomembrane under a pressure of 0.4MPa. According to the results, optimal drilling parameters are proposed, which have the features of good porosity, reliable impermeability and less impact on the asphalt slab, providing a reference for engineering design.

asphalt concrete slab  /  geomembrane  /  anchoring  /  elastomeric epoxy mortar  /  impermeability test
王樱畯, 宁志远, 叶谦. 沥青混凝土面板与土工膜防渗连接结构试验研究. 水电能源科学, 2023 , 41 (8) : 113 -116 . DOI: 10.20040/j.cnki.1000-7709.2023.20221683
Ying-jun WANG, Zhi-yuan NING, Qian YE. Experimental Study on Anti-seepage Connection Structure of Asphalt Concrete Slab and Geomembrane[J]. Water Resources and Power, 2023 , 41 (8) : 113 -116 . DOI: 10.20040/j.cnki.1000-7709.2023.20221683
2023年第41卷第8期
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doi: 10.20040/j.cnki.1000-7709.2023.20221683
  • 接收时间:2022-08-15
  • 首发时间:2026-01-28
  • 出版时间:2023-08-25
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  • 收稿日期:2022-08-15
  • 修回日期:2022-11-01
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    1.中国电建集团华东勘测设计研究院有限公司,浙江 杭州 311122
    2.浙江省抽水蓄能工程技术研究中心,浙江 杭州 311122
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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