Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underwater backfilling method
The invention discloses an underwater backfilling method which comprises the following steps: firstly, filling an external bank protection cofferdam on the periphery of an edge of a to-be-backfilled area, carrying out original landform retest on the to-be-backfilled area to obtain the water depth and the sludge thickness of each part, and then dividing the to-be-backfilled area in the external bank protection cofferdam, dividing a desilting backfilling part and a riprap silt squeezing backfilling part according to the thickness of silt, filling boundary lines among all the parts, then determining a backfilling route and sequence according to distribution of all the parts, carrying out backfilling, and for the desilting backfilling part, filling the cofferdam after desilting is completed, so that pollution to a water body in the silt returning and filling process is avoided; and after backfilling is finished, carrying out foundation treatment of different degrees according to the backfilling thicknesses of different parts, and reducing differential settlement. According to the method, differential settlement of the joint area with different filling thicknesses is effectively reduced, the cost is saved, the construction period is shortened, water pollution in the backfilling process is avoided, and secondary dredging caused by long-time non-backfilling after dredging is completed is avoided.
本发明公开了一种水下回填方法，先在待回填区域边缘外围填筑外部护岸围堰，对待回填区域进行原地貌复测，得到各部位的水深及淤泥厚度，然后对外部护岸围堰内的待回填区域进行划分，根据淤泥厚度划分出清淤回填部位和抛石挤淤回填部位，对各部位间的边界线进行填筑，然后根据各部位的分布确定回填路线及顺序，进行回填，对于清淤回填部位，清淤完成后要填筑围堰，以避免回淤及填筑过程中对水体的污染，回填结束后，根据不同部位的回填厚度进行不同程度的地基处理，减小不均匀沉降。本发明有效的减小了不同填筑厚度交接区域的不均匀沉降，节约了成本和施工工期，避免了回填过程中的水体污染，避免了清淤完成后长时间未回填而导致的二次清淤。
Underwater backfilling method
The invention discloses an underwater backfilling method which comprises the following steps: firstly, filling an external bank protection cofferdam on the periphery of an edge of a to-be-backfilled area, carrying out original landform retest on the to-be-backfilled area to obtain the water depth and the sludge thickness of each part, and then dividing the to-be-backfilled area in the external bank protection cofferdam, dividing a desilting backfilling part and a riprap silt squeezing backfilling part according to the thickness of silt, filling boundary lines among all the parts, then determining a backfilling route and sequence according to distribution of all the parts, carrying out backfilling, and for the desilting backfilling part, filling the cofferdam after desilting is completed, so that pollution to a water body in the silt returning and filling process is avoided; and after backfilling is finished, carrying out foundation treatment of different degrees according to the backfilling thicknesses of different parts, and reducing differential settlement. According to the method, differential settlement of the joint area with different filling thicknesses is effectively reduced, the cost is saved, the construction period is shortened, water pollution in the backfilling process is avoided, and secondary dredging caused by long-time non-backfilling after dredging is completed is avoided.
本发明公开了一种水下回填方法，先在待回填区域边缘外围填筑外部护岸围堰，对待回填区域进行原地貌复测，得到各部位的水深及淤泥厚度，然后对外部护岸围堰内的待回填区域进行划分，根据淤泥厚度划分出清淤回填部位和抛石挤淤回填部位，对各部位间的边界线进行填筑，然后根据各部位的分布确定回填路线及顺序，进行回填，对于清淤回填部位，清淤完成后要填筑围堰，以避免回淤及填筑过程中对水体的污染，回填结束后，根据不同部位的回填厚度进行不同程度的地基处理，减小不均匀沉降。本发明有效的减小了不同填筑厚度交接区域的不均匀沉降，节约了成本和施工工期，避免了回填过程中的水体污染，避免了清淤完成后长时间未回填而导致的二次清淤。
Underwater backfilling method
水下回填方法
HUANG ZHIMENG (Autor:in) / WEI XIAOCHAO (Autor:in)
11.02.2022
Patent
Elektronische Ressource
Chinesisch
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