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A platform for research: civil engineering, architecture and urbanism
Ecological sustainable immersed tunnel damping and reinforcing system and construction method thereof
The invention discloses an ecological sustainable immersed tube tunnel damping and reinforcing system and a construction method thereof. The immersed tube tunnel system comprises a foundation trench, a biological cement sand pile structure, a solid waste mixed pile structure, a backfill layer and an immersed tube tunnel. The foundation trench is in an inverted trapezoid shape, and the biological cement sand pile structure and the solid waste mixed pile structure are vertically located on the slope of the foundation trench and the lower portion of the bottom end of the foundation trench correspondingly. The backfilling layer is arranged on the outer side of the immersed tunnel, a biological cement reinforcing area is arranged in the backfilling layer, and the biological cement reinforcing area is formed by extracting seawater from a backfilling construction surface and injecting a microorganism bacterium solution and a mixed solution to the two sides of the bottom and the center of the top of the outer side of the immersed tunnel when the immersed tunnel is immersed to the position above the bottom end of the foundation trench for backfilling. According to the immersed tube tunnel system, foundation settlement and differential settlement caused by seismic waves can be remarkably reduced, and internal force and deformation of the immersed tube tunnel are reduced; meanwhile, the solid waste raw materials and the microorganism soil solidification technology are adopted, and the environment-friendly and sustainable effects are achieved.
本发明公开了一种生态可持续的沉管隧道减震与加固体系及其施工方法，沉管隧道体系包括基槽、生物水泥砂桩结构、固体废物混合桩结构、回填层和沉管隧道；所述基槽呈倒梯形，生物水泥砂桩结构和所述固体废物混合桩结构分别竖直地位于所述基槽边坡和底端下部；回填层设置于所述沉管隧道外侧，回填层内有生物水泥加固区，生物水泥加固区由所述沉管隧道沉放至所述基槽底端上方进行回填时，在回填施工面抽取海水且向沉管隧道外侧的底部两侧和顶部中心注射微生物菌液和混合液形成。本发明的沉管隧道体系，能够显著减小地震波引发的地基沉降、不均匀沉降，降低沉管隧道内力与变形；同时采用固体废物原料和微生物固化土壤技术具有环保、可持续的效果。
Ecological sustainable immersed tunnel damping and reinforcing system and construction method thereof
The invention discloses an ecological sustainable immersed tube tunnel damping and reinforcing system and a construction method thereof. The immersed tube tunnel system comprises a foundation trench, a biological cement sand pile structure, a solid waste mixed pile structure, a backfill layer and an immersed tube tunnel. The foundation trench is in an inverted trapezoid shape, and the biological cement sand pile structure and the solid waste mixed pile structure are vertically located on the slope of the foundation trench and the lower portion of the bottom end of the foundation trench correspondingly. The backfilling layer is arranged on the outer side of the immersed tunnel, a biological cement reinforcing area is arranged in the backfilling layer, and the biological cement reinforcing area is formed by extracting seawater from a backfilling construction surface and injecting a microorganism bacterium solution and a mixed solution to the two sides of the bottom and the center of the top of the outer side of the immersed tunnel when the immersed tunnel is immersed to the position above the bottom end of the foundation trench for backfilling. According to the immersed tube tunnel system, foundation settlement and differential settlement caused by seismic waves can be remarkably reduced, and internal force and deformation of the immersed tube tunnel are reduced; meanwhile, the solid waste raw materials and the microorganism soil solidification technology are adopted, and the environment-friendly and sustainable effects are achieved.
本发明公开了一种生态可持续的沉管隧道减震与加固体系及其施工方法，沉管隧道体系包括基槽、生物水泥砂桩结构、固体废物混合桩结构、回填层和沉管隧道；所述基槽呈倒梯形，生物水泥砂桩结构和所述固体废物混合桩结构分别竖直地位于所述基槽边坡和底端下部；回填层设置于所述沉管隧道外侧，回填层内有生物水泥加固区，生物水泥加固区由所述沉管隧道沉放至所述基槽底端上方进行回填时，在回填施工面抽取海水且向沉管隧道外侧的底部两侧和顶部中心注射微生物菌液和混合液形成。本发明的沉管隧道体系，能够显著减小地震波引发的地基沉降、不均匀沉降，降低沉管隧道内力与变形；同时采用固体废物原料和微生物固化土壤技术具有环保、可持续的效果。
Ecological sustainable immersed tunnel damping and reinforcing system and construction method thereof
一种生态可持续的沉管隧道减震与加固体系及其施工方法
ZHENG YEWEI (author) / LIU SHENGAN (author) / ZHOU HUANZHU (author) / ZHENG JUNJIE (author) / JI MINGCHANG (author)
2024-02-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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