A new method for treatment of dredger fill was proposed to address its low bearing capacity, high consolidation cost, and long treatment duration. In this method, cotton straw is used as both the draining and reinforcement material. Specifically, cotton straw bundles are driven into the dredged soil and vacuum preloading is then performed. Subsequently, environmentally friendly grout is poured into the cotton straw bundles, and solidified vertical reinforcements are thus formed, allowing dredged soil to be treated. Design parameters for the cotton straw draining were obtained from previous laboratory test. Based on a real-world project, a field test was performed to study treatment of dredged soil through cotton straw drainage and reinforcement, and a comparison was drawn with the traditional cement mixing vertical reinforcement method. The vacuum degree, settlement, and water content of reinforced soil suggested a good ability of cotton straw drainage to solidify dredged soil. The static load test indicated that vertical reinforcement after grouting demonstrated better strength than cement reinforcements. This study provides new insights into the treatment of dredger fill and can broaden the application of cotton straw and also reduce environmental pollution caused by cotton straw burning.

提出了一种新的挖泥船填料处理方法，以解决其承载力低，固结成本高和处理时间长的问题。在这种方法中，吸管既用作排水材料又用作加固材料。具体而言，将棉秸秆束打入疏soil的土壤，然后进行真空预压。随后，将环保灌浆倒入棉秸秆束中，并形成固化的垂直增强材料，从而对疏d​​r的土壤进行处理。棉花秸秆排水的设计参数是从先前的实验室测试中获得的。在一个实际项目的基础上，进行了实地试验，研究了通过棉秸秆排水和加固处理疏soil土壤的方法，并与传统的水泥混合垂直加固方法进行了比较。加筋土壤的真空度，沉降和水分含量表明，棉秸秆排水具有良好的疏dr土壤固化能力。静载荷试验表明，灌浆后的垂直钢筋比水泥钢筋具有更好的强度。这项研究为挖泥船的处理提供了新的见识，可以扩大棉秸秆的应用范围，并减少由棉秸秆燃烧引起的环境污染。