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Method for accelerating preloading drainage consolidation of deep soft soil layer
The invention discloses a method for accelerating preloading drainage consolidation of a deep and thick soft soil layer. The method mainly comprises the steps that a multidirectional composite geotechnical mat is laid on the surface of soft soil, a sand cushion layer is laid on the composite geotechnical mat, a plurality of gravel blind ditches are constructed in the sand cushion layer, a water collecting well is arranged at the intersection of the gravel blind ditches, and a transverse drainage system is formed; mechanically inserting a plurality of plastic drainage plates on the sand cushion layer to form a vertical drainage system; earth and rocks are adopted for filling and preloading on the filling layer, and a preloading preloading system is formed by the earth and rocks and the filling layer; the transverse drainage body and the vertical drainage body finally gather water in the water collecting well, an automatic water pumping device is arranged in the water collecting well, a drainage open trench is dug in the surface of the stacking body, and a water pumping and drainage system is formed; steel pipes are connected to the multidirectional composite geotextile mat steel plates, and settlement monitoring is carried out in the filling and heaping process. The method has the function of accurately and quickly achieving the drainage consolidation effect, so that the preloading effect of first-section foundation treatment of the comprehensive treatment project of the water system of the Ganthorse lake is good.
本发明公开了一种加快深厚软土层堆载预压排水固结的方法，主要步骤为：在软土表面铺设多向复合土工垫，在复合土工垫上铺设砂垫层，在砂垫层中施作多条碎石盲沟，碎石盲沟交汇处设置集水井，形成横向排水体系；在砂垫层上机械插设若干个塑料排水板，形成竖向排水体系；在填筑层上采用土石方进行填筑堆载，与填筑层共同形成堆载预压体系；横向及竖向排水体最终会将水汇集在所述的集水井中，在集水井中设置自动抽水装置，在堆载体表面开挖排水明沟，形成抽排水体系；在多向复合土工垫钢板上连接钢管，对填筑及堆载的过程中进行沉降监测。本发明具有准确、快速达到排水固结效果的功能，使得走马湖水系综合治理工程一标段地基处理堆载预压效果良好。
Method for accelerating preloading drainage consolidation of deep soft soil layer
The invention discloses a method for accelerating preloading drainage consolidation of a deep and thick soft soil layer. The method mainly comprises the steps that a multidirectional composite geotechnical mat is laid on the surface of soft soil, a sand cushion layer is laid on the composite geotechnical mat, a plurality of gravel blind ditches are constructed in the sand cushion layer, a water collecting well is arranged at the intersection of the gravel blind ditches, and a transverse drainage system is formed; mechanically inserting a plurality of plastic drainage plates on the sand cushion layer to form a vertical drainage system; earth and rocks are adopted for filling and preloading on the filling layer, and a preloading preloading system is formed by the earth and rocks and the filling layer; the transverse drainage body and the vertical drainage body finally gather water in the water collecting well, an automatic water pumping device is arranged in the water collecting well, a drainage open trench is dug in the surface of the stacking body, and a water pumping and drainage system is formed; steel pipes are connected to the multidirectional composite geotextile mat steel plates, and settlement monitoring is carried out in the filling and heaping process. The method has the function of accurately and quickly achieving the drainage consolidation effect, so that the preloading effect of first-section foundation treatment of the comprehensive treatment project of the water system of the Ganthorse lake is good.
本发明公开了一种加快深厚软土层堆载预压排水固结的方法，主要步骤为：在软土表面铺设多向复合土工垫，在复合土工垫上铺设砂垫层，在砂垫层中施作多条碎石盲沟，碎石盲沟交汇处设置集水井，形成横向排水体系；在砂垫层上机械插设若干个塑料排水板，形成竖向排水体系；在填筑层上采用土石方进行填筑堆载，与填筑层共同形成堆载预压体系；横向及竖向排水体最终会将水汇集在所述的集水井中，在集水井中设置自动抽水装置，在堆载体表面开挖排水明沟，形成抽排水体系；在多向复合土工垫钢板上连接钢管，对填筑及堆载的过程中进行沉降监测。本发明具有准确、快速达到排水固结效果的功能，使得走马湖水系综合治理工程一标段地基处理堆载预压效果良好。
Method for accelerating preloading drainage consolidation of deep soft soil layer
一种加快深厚软土层堆载预压排水固结的方法
2022-12-16
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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