Page 198 - Water Standards
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the second⁃stage concrete, the section size and the
                     position of embedded anchor slabs, bolts and bars shall
                     meet the design drawing requirements.
                  3) When the embedded parts of plane gates are installed, the
                     allowable error shall meet the requirements in DL/ T 5018.
                  4) The installation of embedded parts for plane sprocket gates
                     shall meet the requirements in DL/ T 5018 and the
                     staggered displacement at the joints of the main track bear⁃
                     ing face shall be no less than 0   2mm. The joints shall be
                     processed to be gentle slopes. The main track bearing
                     faces on both sides of the sluice hole shall be on the same
                     surface. The flatness tolerance shall meet the requirements
                     of Table 4   1   2-1  

                        Table 4   1   2-1  Flatness tolerance of main
                                 track bearing faces         Unit: mm

                    Main track length               Tolerance
                       ≤1000                          0   4
                      >1000-2500                      0   5
                      >2500-4000                      0   6
                      >4000-6300                      0   8
                     >6300-10000                      1   0
                 5) The allowable installation error of embedded parts for lift⁃lie plain gates shall meet
                   the following requirements: The installation deviation of the main track turning ra⁃
                   dius shall be no greater than 1/ 1000 of the turning radius, and shall be no greater
                   than 2mm. The allowable error of the arc center position shall be no larger than
                   2mm. The vertical flatness error of main track shall meet the drawing
                   requirements. If there is no requirement, it shall be less than 2mm. The water
                   stop seat plate should be 3-5mm higher than the concrete surface, whose allowa⁃
                   ble flatness error shall be no larger than 2mm.
                 6) For tainter gate hinges, the installation deviation of the center positions of the
                   foundation bolts shall be no larger than 1mm.
                 7) The installation tolerance or maximum deviation of tainter gate embedded parts
                                                                 1 9 1
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