| 摘要 |
PURPOSE:To obtain reaction bearing forces by the upper soil pressure of frozen soil as well as increase the pressure of the surrounding soil of reaction anchor piles by forming plural freezing chambers partitioned by heat-insulating sections in the bottomed tubes of reaction anchor piles. CONSTITUTION:A reaction anchor pile consists of a bottomed tube 3, an injection tube 4, a discharge pipe 5, a heat-insulating section 6, a freezing chamber 7, a resistor 12, and a connection 11 to be connected to a supporting base. A refrigerant is injected into the injection tube 4, discharged into the bottomed tube 3, and circulated orderly from the freezing chamber 7 below the bottomed tube 3 to the upper freezing chamber 7 through the discharge tube 5. During the period, the surrounding soil of each freezing chamber is frozen, the pressure of the surrounding soil is increased by the expansion by freezing of the soil, and a reaction bearing force is obtained by the upper soil pressure of the frozen soil. |
