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A platform for research: civil engineering, architecture and urbanism
Shield tunnel shock insulation layer grouting material and application thereof
The invention discloses a shield tunnel shock insulation layer grouting material and application thereof, and the shield tunnel shock insulation layer grouting material comprises the following components: polyurethane, coarse aggregate, quartz sand and PVA fiber; wherein according to the parts by weight, the mixing amount of the polyurethane is 30-40 parts; the mixing amount of the quartz sand is 50 parts; the mixing amount of the coarse aggregate is 10-30 parts; the mixing amount of the PVA fiber is 0.1 to 0.3 part. The prepared ultra-long sea-crossing shield tunnel shock insulation layer grouting material has excellent performance after being condensed, and parameters are as follows: 7d strength is 6.5 Mpa, 28d strength is 10 Mpa, and elastic modulus is 10-100 Mpa. The shock insulation layer formed by the method has good effects on stress response and strain response of the tunnel structure under the action of an earthquake.
本发明公开了一种盾构隧道隔震层注浆材料及其应用，其中，盾构隧道隔震层注浆材料包括以下组分：聚氨酯、粗骨料、石英砂和PVA纤维；其中，按照重量份数计算，包括：聚氨酯的掺量为30‑40份；石英砂的掺量为50份；粗骨料的掺量为10‑30份；PVA纤维的掺量为0.1‑0.3份。本发明制备得到的超长跨海盾构隧道隔震层注浆材料凝结后的性能优异，参数为:7d强度为6.5Mpa，28d强度为10Mpa，弹性模量为10‑100Mpa。本发明形成的隔震层对隧道结构在地震作用下的应力响应和应变响应均具有良好效果。
Shield tunnel shock insulation layer grouting material and application thereof
The invention discloses a shield tunnel shock insulation layer grouting material and application thereof, and the shield tunnel shock insulation layer grouting material comprises the following components: polyurethane, coarse aggregate, quartz sand and PVA fiber; wherein according to the parts by weight, the mixing amount of the polyurethane is 30-40 parts; the mixing amount of the quartz sand is 50 parts; the mixing amount of the coarse aggregate is 10-30 parts; the mixing amount of the PVA fiber is 0.1 to 0.3 part. The prepared ultra-long sea-crossing shield tunnel shock insulation layer grouting material has excellent performance after being condensed, and parameters are as follows: 7d strength is 6.5 Mpa, 28d strength is 10 Mpa, and elastic modulus is 10-100 Mpa. The shock insulation layer formed by the method has good effects on stress response and strain response of the tunnel structure under the action of an earthquake.
本发明公开了一种盾构隧道隔震层注浆材料及其应用，其中，盾构隧道隔震层注浆材料包括以下组分：聚氨酯、粗骨料、石英砂和PVA纤维；其中，按照重量份数计算，包括：聚氨酯的掺量为30‑40份；石英砂的掺量为50份；粗骨料的掺量为10‑30份；PVA纤维的掺量为0.1‑0.3份。本发明制备得到的超长跨海盾构隧道隔震层注浆材料凝结后的性能优异，参数为:7d强度为6.5Mpa，28d强度为10Mpa，弹性模量为10‑100Mpa。本发明形成的隔震层对隧道结构在地震作用下的应力响应和应变响应均具有良好效果。
Shield tunnel shock insulation layer grouting material and application thereof
一种盾构隧道隔震层注浆材料及其应用
ZHANG LIWEN (author) / ZHANG JUNPING (author) / HUANG XIANGYUN (author) / ZHOU FULIN (author) / LI CONG (author) / XIE ZHUJIAN (author) / LUO JUNJIE (author) / ZHANG YING (author)
2022-11-22
Patent
Electronic Resource
Chinese
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