I. Water plastic drainage board measurement and control1, the operation of the ship and the board machine are providedGPSThrough theGPSAccurate positioning of each pile,GPSThe principle is shown in figure3-1Shown below.2By installing underwater depth sounder, pressure sensor, tracking sensor and other instruments, the intelligent monitoring system can provide the construction operator with real-time parameters such as casing pressure, insertion depth, loop length and so on to ensure the depth of each pile. At the same time, it automatically records the serial number, depth and time of each pile......
One, water plastic drainage boardSurvey control
1,Operating vessel and board insertion machine are providedGPSThrough theGPSPosition each pile accurately .
2,By installing underwater depth sounders, pressure sensors, tracking sensors and other instruments, the intelligent monitoring system can provide the construction operator with real-time parameters such as casing pressure, insertion depth and loop length to ensure the depth of each pile. At the same time, each pile is automatically recorded with serial number, depth, time and other detailed records (as shown in the figure)3-9As shown) for inspection by the supervision department at any time.
Two, water plastic drainage plateThe quality control
1,Control of verticality
The pile frame of the slotting machine is equipped with a tilting meter, which can monitor the tilting degree in real time through the intelligent monitoring system. Check the perpendicularity of casing and pile frame before inserting drainage plate, and control the deviation of perpendicularity not greater than2％.
2,To take control
The drainage plate is compressed by the guide post and post boots installed at the end of the casing so that it does not fall back and the return length is not more than500mm.
(1No kinking, breakage and tearing of the filter membrane are allowed in the process of applying the plastic drainage plate,If this happens,. It should be inserted near the insertion point.
(2) Pay attention to the sinking situation of the catheter at any time during the installation process. When it is found that the sinking speed suddenly slows down or the catheter has excessive bending, stop sinking the tube immediately, analyze and check the underwater obstacles, and proceed with the construction after treatment.
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