Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Microbial solidification method suitable for marine soft soil foundation and irrigation and drainage device
The invention discloses a microbial solidification method suitable for marine soft soil foundation and an irrigation and drainage device. The method mainly comprises the steps of pile hole excavation,grouting, solidification and drainage, and composite foundation forming. The irrigation and drainage device comprises a mixing device and a drainage device, wherein the mixing device is communicatedwith a sleeving type sealing joint through a grouting pipe, a mud valve and a high-pressure pump are arranged on the grouting pipe, and the sleeving type sealing joint is connected with a top openingof a hollow pipe pile. Compared with traditional sand piles, through the device, energy consumption is reduced, and environmental pollution caused by cement, lime and other cementing materials is reduced; a solidified sandy soil body has certain cementation strength and permeability, the formed composite foundation is processed, and at the same time, the problems of low bearing capacity, poor drainage and short service life are solve. Compared with the existing microbial solidification technology, through the mixing and perfusion of sand, microbial bacteria liquid and nutrient liquid, the problem of uneven solidification phenomenon in MICP technology is effectively solved, and the strength of a solidified soil body is effectively improved.
本发明公开了一种适用于海积软土地基的微生物固化方法及灌排装置，该方法主要包括桩孔开挖、灌浆、固化及排水、复合地基成型；该灌排装置包括拌合装置和排水装置，拌合装置通过注浆管与套管式密封接头连通，注浆管上设置有泥浆阀和高压泵，套管式密封接头与中空管桩的顶部开口连接。本发明与传统的砂桩相比，降低了能源的消耗，减少了水泥、石灰等胶凝材料对环境的污染；固化后的砂土体具有一定的胶结强度与渗透性，处理形成的复合地基同时解决了承载力低、排水不畅、使用寿命短的问题，与现有的微生物固化技术相比，通过砂、微生物菌液、营养液三者的拌合与灌注，有效解决了MICP技术中固化不均匀现象，有效提高固化土体的强度。
Microbial solidification method suitable for marine soft soil foundation and irrigation and drainage device
The invention discloses a microbial solidification method suitable for marine soft soil foundation and an irrigation and drainage device. The method mainly comprises the steps of pile hole excavation,grouting, solidification and drainage, and composite foundation forming. The irrigation and drainage device comprises a mixing device and a drainage device, wherein the mixing device is communicatedwith a sleeving type sealing joint through a grouting pipe, a mud valve and a high-pressure pump are arranged on the grouting pipe, and the sleeving type sealing joint is connected with a top openingof a hollow pipe pile. Compared with traditional sand piles, through the device, energy consumption is reduced, and environmental pollution caused by cement, lime and other cementing materials is reduced; a solidified sandy soil body has certain cementation strength and permeability, the formed composite foundation is processed, and at the same time, the problems of low bearing capacity, poor drainage and short service life are solve. Compared with the existing microbial solidification technology, through the mixing and perfusion of sand, microbial bacteria liquid and nutrient liquid, the problem of uneven solidification phenomenon in MICP technology is effectively solved, and the strength of a solidified soil body is effectively improved.
本发明公开了一种适用于海积软土地基的微生物固化方法及灌排装置，该方法主要包括桩孔开挖、灌浆、固化及排水、复合地基成型；该灌排装置包括拌合装置和排水装置，拌合装置通过注浆管与套管式密封接头连通，注浆管上设置有泥浆阀和高压泵，套管式密封接头与中空管桩的顶部开口连接。本发明与传统的砂桩相比，降低了能源的消耗，减少了水泥、石灰等胶凝材料对环境的污染；固化后的砂土体具有一定的胶结强度与渗透性，处理形成的复合地基同时解决了承载力低、排水不畅、使用寿命短的问题，与现有的微生物固化技术相比，通过砂、微生物菌液、营养液三者的拌合与灌注，有效解决了MICP技术中固化不均匀现象，有效提高固化土体的强度。
Microbial solidification method suitable for marine soft soil foundation and irrigation and drainage device
一种适用于海积软土地基的微生物固化方法及灌排装置
LIU XIAOLI (Autor:in) / NIE NING (Autor:in) / LIU GUANGBIN (Autor:in) / LI JUNMING (Autor:in) / ZHAO SHAOFENG (Autor:in) / SUN YANCHUN (Autor:in) / ZHAO XINCHUN (Autor:in) / LI ZHI (Autor:in) / ZHAO SHAOGENG (Autor:in) / BI XUETAI (Autor:in)
14.08.2020
Patent
Elektronische Ressource
Chinesisch
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