<p> - 질 의 문 -<br>  <br>수심확보를 위한 준설작업을 시행할시 준설여굴이 필요한지 여부? <br>필요하다면 그 근거규정은 무엇이며, 어느정도로 준설해야 하는지?</p><p> - 회 신 문 -<br>  <br>  수삼확보를 위하여 준설장비로 계획수심까지 준설하면 해저면에 불가피한 요철이 생기게 되며, 계획수심은 요철면의 상부면까지의 깊이가 되는 것이므로 결국 더 판 물량이 발생하게 되는데, 이를 여굴이라 하며 표준품셈(제14장 항만, 14-1 수중공사 \"다\"항)에서는 준설량 산출시 순 준설량에 여굴량을 가산토록 하고 있음. <br>여굴량은 항만공사 표준시방서에서 다음과 같이 정하고 있음. </p><table border=\"1\" cellpadding=\"0\" cellspacing=\"1\">  <tr>    <td align=\"middle\" width=\"200\"><div align=\"center\">토 질 </div></td>    <td align=\"middle\" width=\"150\"><div align=\"center\">선 종 </div></td>    <td align=\"middle\" width=\"150\"><div align=\"center\">여굴두께(m) </div></td>  </tr>  <tr>    <td align=\"middle\" width=\"200\"><div align=\"center\">점토질토사 및 사질토사 </div></td>    <td align=\"middle\" width=\"150\"><div align=\"center\">펌프준설선 <br>      그래브준설선 </div></td>    <td align=\"middle\" width=\"150\"><div align=\"center\">0.3~0.8 <br>      0.3~0.6 </div></td>  </tr>  <tr>    <td align=\"middle\" width=\"200\"><div align=\"center\">자갈,역토사 및 암반 </div></td>    <td align=\"middle\" width=\"150\"><div align=\"center\">그래브준설선 </div></td>    <td align=\"middle\" width=\"150\"><div align=\"center\">0.2~0.5 </div></td>  </tr></table><p>한양경제연구원 031-759-4555 컨설팅, 계약금액조정, 원가계산 </p>