A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Microorganism grouting drainage solidification pile and construction method and application thereof
The invention relates to the technical field of foundation reinforcement, in particular to a microorganism grouting drainage solidification pile and a construction method and application thereof. A gravel sand pile is obtained through a vibration pipe sinking pile forming method; and a microorganism bacteria solution and a nutrient solution are injected into the gravel sand pile, precipitation ofcalcium carbonate is induced through microorganisms to solidify gravel and sand into a pile, and cementing and solidifying are carried out on a foundation around the pile to obtain the microorganism grouting drainage solidification pile. According to the microorganism grouting drainage solidification pile, the microorganism induced calcium carbonate precipitation technology is utilized, and generated calcium carbonate, gravel and sand are solidified into the pile through the bonding effect of microorganisms; and on one hand, the bearing capacity of the pile is improved, on the other hand, calcium carbonate generated by microorganisms is cemented with gravel and sand, but does not fill pores among sand particles, the pile maintains excellent drainage performance, and is economical and environment-friendly, materials are convenient to take, and the manufacturing cost is low.
本发明涉及地基加固技术领域，特别涉及一种微生物注浆排水固化桩及其施工方法与应用。本发明通过振动沉管成桩法得到碎石砂桩；再在碎石砂桩中注入微生物菌液和营养液，通过微生物诱导碳酸钙沉淀，使砾石和砂固结成桩，并对桩周地基进行胶结固化，得到微生物注浆排水固化桩。该微生物注浆排水固化桩利用微生物诱导碳酸钙沉淀技术，通过微生物的粘结作用使生成的碳酸钙与砾石和砂固结成桩，一方面提高桩的承载能力；另一方面，微生物生成的碳酸钙与砾石和砂胶结在一起，但并未充满砂土颗粒间的孔隙，使桩保持优良的排水性能，经济、环保，取材方便，造价低。
Microorganism grouting drainage solidification pile and construction method and application thereof
The invention relates to the technical field of foundation reinforcement, in particular to a microorganism grouting drainage solidification pile and a construction method and application thereof. A gravel sand pile is obtained through a vibration pipe sinking pile forming method; and a microorganism bacteria solution and a nutrient solution are injected into the gravel sand pile, precipitation ofcalcium carbonate is induced through microorganisms to solidify gravel and sand into a pile, and cementing and solidifying are carried out on a foundation around the pile to obtain the microorganism grouting drainage solidification pile. According to the microorganism grouting drainage solidification pile, the microorganism induced calcium carbonate precipitation technology is utilized, and generated calcium carbonate, gravel and sand are solidified into the pile through the bonding effect of microorganisms; and on one hand, the bearing capacity of the pile is improved, on the other hand, calcium carbonate generated by microorganisms is cemented with gravel and sand, but does not fill pores among sand particles, the pile maintains excellent drainage performance, and is economical and environment-friendly, materials are convenient to take, and the manufacturing cost is low.
本发明涉及地基加固技术领域，特别涉及一种微生物注浆排水固化桩及其施工方法与应用。本发明通过振动沉管成桩法得到碎石砂桩；再在碎石砂桩中注入微生物菌液和营养液，通过微生物诱导碳酸钙沉淀，使砾石和砂固结成桩，并对桩周地基进行胶结固化，得到微生物注浆排水固化桩。该微生物注浆排水固化桩利用微生物诱导碳酸钙沉淀技术，通过微生物的粘结作用使生成的碳酸钙与砾石和砂固结成桩，一方面提高桩的承载能力；另一方面，微生物生成的碳酸钙与砾石和砂胶结在一起，但并未充满砂土颗粒间的孔隙，使桩保持优良的排水性能，经济、环保，取材方便，造价低。
Microorganism grouting drainage solidification pile and construction method and application thereof
一种微生物注浆排水固化桩及其施工方法与应用
XIAO XUELI (author) / LIANG SHIHUA (author) / ZHONG ZHOU (author) / LU XIAOYAN (author) / FAN CHUCAN (author)
2021-01-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Drainage stiffening core composite pile based on geopolymer grouting and construction method thereof
| European Patent Office | 2021
| European Patent Office | 2023
Radial radiation grouting and self-maintenance microorganism solidification device and method
| European Patent Office | 2020
Foundation grouting stiffening pile and construction method thereof
| European Patent Office | 2021