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Microorganism and electric field combination reinforcing method for liquefiable foundation
A microorganism and electric field combination reinforcing method for a liquefiable foundation comprises the following steps of a, drilling holes in the foundation to be reinforced, arranging grouting pipes a and b in rows and at intervals, and connecting the grouting pipes a with a cathode of a direct current power supply 4 into cathode grouting pipes 1 and connecting the grouting pipes b with an anode of the direct current power supply 4 into anode grouting pipes 2 through conducting wires 3; b, opening a first valve 8, and injecting a urease-producing microorganism solution 5 into the stratum through the cathode grouting pipes 1; c, when grouting begins, closing a switch 6 of the direct current power supply 4, forming a direct current electric field in a region between the cathode and anode grouting pipes, and after the action of the electric field finishes, closing the first valve 8; d, opening a second valve 8, injecting a cement solution 7 into the stratum through the cathode grouting pipes 1, closing the second valve 8, and standing for 8-12h; and e, exchanging the cathode and the anode which are connected with the grouting pipes a, repeating the steps b to d to carry out a new round of reinforcing on the foundation, pulling out all the grouting pipes after grouting is carried out on the place for required times, and pumping underground water to carry out sewage treatment.
Microorganism and electric field combination reinforcing method for liquefiable foundation
A microorganism and electric field combination reinforcing method for a liquefiable foundation comprises the following steps of a, drilling holes in the foundation to be reinforced, arranging grouting pipes a and b in rows and at intervals, and connecting the grouting pipes a with a cathode of a direct current power supply 4 into cathode grouting pipes 1 and connecting the grouting pipes b with an anode of the direct current power supply 4 into anode grouting pipes 2 through conducting wires 3; b, opening a first valve 8, and injecting a urease-producing microorganism solution 5 into the stratum through the cathode grouting pipes 1; c, when grouting begins, closing a switch 6 of the direct current power supply 4, forming a direct current electric field in a region between the cathode and anode grouting pipes, and after the action of the electric field finishes, closing the first valve 8; d, opening a second valve 8, injecting a cement solution 7 into the stratum through the cathode grouting pipes 1, closing the second valve 8, and standing for 8-12h; and e, exchanging the cathode and the anode which are connected with the grouting pipes a, repeating the steps b to d to carry out a new round of reinforcing on the foundation, pulling out all the grouting pipes after grouting is carried out on the place for required times, and pumping underground water to carry out sewage treatment.
Microorganism and electric field combination reinforcing method for liquefiable foundation
SHAO GUANGHUI (Autor:in) / HUANG RONGPIN (Autor:in) / ZHU ZHE (Autor:in) / ZHAO ZHIFENG (Autor:in)
06.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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