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Offshore wind power single pile foundation scouring protection reinforcing structure and method
The invention discloses an offshore wind power single pile foundation scouring protection reinforcing structure and method. A backfill gravel layer is arranged in a seabed, can achieve the effect of leveling the seabed, and meanwhile achieves the effects that the sinking amount of gravel into the seabed is small, and the project amount is reduced; a sand quilt filtering layer can achieve the effect of preventing reverse osmosis of sand in the lower seabed; a gravel surface protection layer achieves the effects of increasing the scouring starting flow speed and reducing the risk that a protection material is scoured away; and a net bag gravel protection abutment can achieve the effect of further improving the bearing capacity of a single pile foundation. The four materials supplement one another to form the new protection structure, and the good scouring protection effect can be achieved. The graded gravel is adopted, the number of the graded gravel sinking into the seabed is small, and then the square amount of the backfill gravel is reduced as much as possible; and then the sand quilt filtering layer is used for preventing the situation that a lower seabed soil body upwards permeates through the lower backfill gravel layer, consequently, the seabed soil body is lost, and a scouring protection device loses efficacy overall.
本发明公开了一种海上风电单桩基础冲刷防护加固结构及方法，通过填碎石层设置于海床内，回填碎石层可起到对海床整平的作用，同时起到碎石沉入海床量较少，减少工程量的作用；砂被过滤层可以起到防止下部海床中的沙子反渗的作用；碎石护面层起到提高冲刷起动流速，降低防护材料被冲刷走的风险；网兜碎石防护墩台，可以起到进一步提高单桩基础承载力的作用。四种材料相辅相成，组成新的防护结构，可以起到良好的冲刷防护效果。采用级配碎石，可保证级配碎石下沉进入海床的数量较少，进而尽可能减少回填石方量，然后利用砂被过滤层阻止下部海床土体通过下部回填碎石层向上渗透，进而造成海床土体流失，导致冲刷防护装置整体失效。
Offshore wind power single pile foundation scouring protection reinforcing structure and method
The invention discloses an offshore wind power single pile foundation scouring protection reinforcing structure and method. A backfill gravel layer is arranged in a seabed, can achieve the effect of leveling the seabed, and meanwhile achieves the effects that the sinking amount of gravel into the seabed is small, and the project amount is reduced; a sand quilt filtering layer can achieve the effect of preventing reverse osmosis of sand in the lower seabed; a gravel surface protection layer achieves the effects of increasing the scouring starting flow speed and reducing the risk that a protection material is scoured away; and a net bag gravel protection abutment can achieve the effect of further improving the bearing capacity of a single pile foundation. The four materials supplement one another to form the new protection structure, and the good scouring protection effect can be achieved. The graded gravel is adopted, the number of the graded gravel sinking into the seabed is small, and then the square amount of the backfill gravel is reduced as much as possible; and then the sand quilt filtering layer is used for preventing the situation that a lower seabed soil body upwards permeates through the lower backfill gravel layer, consequently, the seabed soil body is lost, and a scouring protection device loses efficacy overall.
本发明公开了一种海上风电单桩基础冲刷防护加固结构及方法，通过填碎石层设置于海床内，回填碎石层可起到对海床整平的作用，同时起到碎石沉入海床量较少，减少工程量的作用；砂被过滤层可以起到防止下部海床中的沙子反渗的作用；碎石护面层起到提高冲刷起动流速，降低防护材料被冲刷走的风险；网兜碎石防护墩台，可以起到进一步提高单桩基础承载力的作用。四种材料相辅相成，组成新的防护结构，可以起到良好的冲刷防护效果。采用级配碎石，可保证级配碎石下沉进入海床的数量较少，进而尽可能减少回填石方量，然后利用砂被过滤层阻止下部海床土体通过下部回填碎石层向上渗透，进而造成海床土体流失，导致冲刷防护装置整体失效。
Offshore wind power single pile foundation scouring protection reinforcing structure and method
一种海上风电单桩基础冲刷防护加固结构及方法
QIU XU (author) / ZHANG BO (author) / CHEN XINMING (author) / HANG ZHAOFENG (author) / LIU MINGJIANG (author) / YAO ZHONGYUAN (author) / SHAO RUI (author) / ZHANG YU (author) / LI DONG (author) / CHEN JIAZHI (author)
2021-08-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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