A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shield construction method for water-rich soft soil stratum
The invention discloses a shield construction method for a water-rich soft soil stratum, and belongs to the technical field of shield construction. The shield construction method comprises the steps that according to the position of a building, a foundation of the building and a water-rich soft soil layer below the foundation are reinforced through sleeve valve pipe pre-grouting on the earth surface; shield tunneling is conducted on the water-rich soft soil stratum, a plurality of outer side ribbed pipe pieces are laid in the shield tunneling process, grouting is conducted on the stratum behind the outer side ribbed pipe pieces synchronously, and the multiple outer side ribbed pipe pieces support the pile foundation obtained after abrasion cutting; the grouting holes are grouted through the frame tracking grouting platform, so that the soil layer on the outer side of the outer ribbed pipe piece forms a grouting reinforcement layer; and settlement deformation of the building before and after shielding is monitored, and when the settlement deformation of the building after shielding exceeds a threshold value, the building is reinforced. According to the shield construction method for the water-rich soft soil stratum, settlement deformation of a building can be effectively reduced, and the anti-seismic safety and the follow-up service life of a building structure are guaranteed.
本发明公开了一种富水软土地层的盾构施工方法，属于盾构施工技术领域。所述盾构施工方法包括：根据建筑物的位置，在地表通过袖阀管预先注浆对建筑物地基基础及下方富水软土地层进行加固；对富水软土地层进行盾构，在盾构过程中铺设多个外侧带肋管片，并同步在外侧带肋管片的背后地层注浆，多个外侧带肋管片对磨切后的桩基进行支撑；通过车架跟踪注浆平台对各注浆孔注浆，使得外侧带肋管片外侧的土层形成注浆加固层；监测建筑物盾构前后的沉降变形，当建筑物盾构后的沉降变形超过阈值，对建筑物加固。本发明实施例提供的一种富水软土地层的盾构施工方法，可以有效减小建筑物的沉降变形，保证了建筑物结构抗震安全和后续使用年限。
Shield construction method for water-rich soft soil stratum
The invention discloses a shield construction method for a water-rich soft soil stratum, and belongs to the technical field of shield construction. The shield construction method comprises the steps that according to the position of a building, a foundation of the building and a water-rich soft soil layer below the foundation are reinforced through sleeve valve pipe pre-grouting on the earth surface; shield tunneling is conducted on the water-rich soft soil stratum, a plurality of outer side ribbed pipe pieces are laid in the shield tunneling process, grouting is conducted on the stratum behind the outer side ribbed pipe pieces synchronously, and the multiple outer side ribbed pipe pieces support the pile foundation obtained after abrasion cutting; the grouting holes are grouted through the frame tracking grouting platform, so that the soil layer on the outer side of the outer ribbed pipe piece forms a grouting reinforcement layer; and settlement deformation of the building before and after shielding is monitored, and when the settlement deformation of the building after shielding exceeds a threshold value, the building is reinforced. According to the shield construction method for the water-rich soft soil stratum, settlement deformation of a building can be effectively reduced, and the anti-seismic safety and the follow-up service life of a building structure are guaranteed.
本发明公开了一种富水软土地层的盾构施工方法，属于盾构施工技术领域。所述盾构施工方法包括：根据建筑物的位置，在地表通过袖阀管预先注浆对建筑物地基基础及下方富水软土地层进行加固；对富水软土地层进行盾构，在盾构过程中铺设多个外侧带肋管片，并同步在外侧带肋管片的背后地层注浆，多个外侧带肋管片对磨切后的桩基进行支撑；通过车架跟踪注浆平台对各注浆孔注浆，使得外侧带肋管片外侧的土层形成注浆加固层；监测建筑物盾构前后的沉降变形，当建筑物盾构后的沉降变形超过阈值，对建筑物加固。本发明实施例提供的一种富水软土地层的盾构施工方法，可以有效减小建筑物的沉降变形，保证了建筑物结构抗震安全和后续使用年限。
Shield construction method for water-rich soft soil stratum
一种富水软土地层的盾构施工方法
SEO YOUNG-HO (author) / PEI LIHUA (author) / XIN YAHUI (author) / LIU SHUAI (author) / HE MINJIE (author) / CHEN QIANG (author) / CHEN YUMENG (author)
2024-12-20
Patent
Electronic Resource
Chinese
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