BIAXIAL DEEP LAYER MIXING DEVICE AND DETECTION METHOD OF AGITATION SHAFT UNDERGROUND PENETRATION STATE DURING CONSTRUCTION USING THE SAME DEVICE AND CONTROL METHOD THEREOF

Japanese Patent JP3404591

B2

PROBLEM TO BE SOLVED: To provide a deep layer mixing processing device provided with the function which controls the underground penetration of an agitation shaft properly on the whole and provide a concrete detection method and an effective control method of an underground penetration state of the agitation shaft during the execution of penetration work.
SOLUTION: A leader clinometer 8 and a CPS antenna 9 and an agitation shaft guide device 12 are mounted on a leader 2 while an agitation shaft clinometer and an agitation shaft torsion meter are mounted on an agitation shat 7. An expandable tip pick may be mounted on unit agitation shafts 4 and 4'. The displacement at the tip of the adaptation shaft 7 is detected in consideration for the displacement of the upper end of the agitation shaft 7 production by the slope of the leader 2. The displacement in the crosswise direction of the agitation shaft 7 is controlled by changing the turning direction of the unit agitation shafts 4 and 4' while the displacement in the transverse direction is controlled by engaging temporarily the agitation shaft guide device 12 with the agitation shaft 7. Torsion control is carried out by using a ground improvement discharge nozzle 6 or the tip pick.

Toshihiro Deguchi
Osamu Ishida
Takashi Yamada

JP12138697A

May 12, 2003

April 07, 1997

Click for automatic bibliography generation  

Fudo Construction Co., Ltd.

E02D3/12; (IPC1-7): E02D3/12

JP742147A
JP8144264A
JP60102415A
JP6065816A
JP60233223A
JP5326410A
JP60188521A
JP6272345U

Koji Someya

Previous Patent: ILLUMINATED DENTAL INSPECTING MIRROR

Next Patent: END PLATE FOR FIXING BELLOWS, BELLOWS FIXED WITH THE END PLATE, AND BELLOWS SET