Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for consolidating subsoil through microorganisms in circulating grouting mode
A method for consolidating subsoil through microorganisms in a circulating grouting mode includes the steps that a, grout injecting pipes and grout extracting pipes are inserted into the subsoil to be consolidated at intervals; b, microorganism bacterial liquid is circularly injected into the subsoil through the grout injecting pipe (I) and the grout extracting pipe (I'); c, a cement solution is circularly injected into the subsoil through the grout injecting pipe (II) and the grout extracting pipe (II'); d, the extraction and injection functions of the grout injecting pipe (I) and the grout extracting pipe (I') are interchanged, and the microorganism bacterial liquid is made to circularly injected into the subsoil in the opposite direction; e, the extraction and injection functions of the grout injecting pipe (II) and the grout extracting pipe (II') are interchanged, and the cement solution is circularly injected into the subsoil in the opposite direction; and f, the steps b, c, d and e are repeated until the subsoil meets the consolidation requirement. A grouting system with integrated extraction and injection, alternation of positive circulation and negative circulation and orthogonal streamlines is formed in the subsoil through the microorganism circulating grouting mode, the microorganism bacterial liquid and the cement solution can be rapidly and uniformly injected into the subsoil and react to generate calcium carbonate sand or powder with loose cementing, and a composite subsoil with high bearing capacity is formed.
Method for consolidating subsoil through microorganisms in circulating grouting mode
A method for consolidating subsoil through microorganisms in a circulating grouting mode includes the steps that a, grout injecting pipes and grout extracting pipes are inserted into the subsoil to be consolidated at intervals; b, microorganism bacterial liquid is circularly injected into the subsoil through the grout injecting pipe (I) and the grout extracting pipe (I'); c, a cement solution is circularly injected into the subsoil through the grout injecting pipe (II) and the grout extracting pipe (II'); d, the extraction and injection functions of the grout injecting pipe (I) and the grout extracting pipe (I') are interchanged, and the microorganism bacterial liquid is made to circularly injected into the subsoil in the opposite direction; e, the extraction and injection functions of the grout injecting pipe (II) and the grout extracting pipe (II') are interchanged, and the cement solution is circularly injected into the subsoil in the opposite direction; and f, the steps b, c, d and e are repeated until the subsoil meets the consolidation requirement. A grouting system with integrated extraction and injection, alternation of positive circulation and negative circulation and orthogonal streamlines is formed in the subsoil through the microorganism circulating grouting mode, the microorganism bacterial liquid and the cement solution can be rapidly and uniformly injected into the subsoil and react to generate calcium carbonate sand or powder with loose cementing, and a composite subsoil with high bearing capacity is formed.
Method for consolidating subsoil through microorganisms in circulating grouting mode
SHAO GUANGHUI (Autor:in) / XUE SHUANG (Autor:in) / FENG JIANTING (Autor:in) / ZHAO ZHIFENG (Autor:in)
24.02.2016
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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