Khả Năng Chịu Tải của Móng Vuông Mô Hình Trên Đất Tầng Nâng Có Gia Cường Bằng Vật Liệu Geocomposite

Asif Akbar1, Javed Ahmad Bhat1, Bashir Ahmad Mir1
1National Institute of Technology Srinagar, Srinagar, India

Tóm tắt

Nỗ lực trên toàn cầu nhằm giảm thiểu ô nhiễm môi trường hiện nay đang trở nên vô cùng khắc nghiệt. Do đó, sự gia tăng sự cảnh giác đối với môi trường bền vững đã hạn chế việc sử dụng các vật liệu có thể có tác động lớn đến ô nhiễm môi trường. Vật liệu geosynthetic là một loại vật liệu hiệu quả về chi phí và chống ăn mòn, có thể được sử dụng trong các điều kiện tiếp xúc nhiều để giảm thiểu sự lún quá mức dự kiến trong trường hợp đất mềm. Nghiên cứu hiện tại đã điều tra hành vi của vật liệu geocomposite trong hệ thống đất có lớp. Ba loại geocomposite đã được sản xuất bằng cách thay đổi độ cứng kéo của các thành phần, đó là GCBX-40, GC-BX-60, và GC-BX80. Cấu hình cơ bản của mỗi geocomposite là giống nhau và được tạo ra bằng cách đặt một lớp geotextile giữa hai lớp geogrid, điều này đã làm tăng đáng kể độ ma sát bề mặt do tỷ lệ bề mặt che phủ tăng lên cũng như cải thiện hiệu ứng liên kết giữa các hạt đất nhờ vào các lớp geogrid ở cả hai bên. Nghiên cứu đã giới thiệu nhiều dạng bố trí khác nhau của geocomposite ngoài bố trí phẳng tổng quát và phát hiện rằng hiệu ứng giam giữ đã tăng lên trong các lớp đất. Do đó, độ kết dính (c) giữa các hạt đất và góc ma sát (ϕ) đã được điều chỉnh do tăng cường hiệu ứng giam giữ này, không chỉ cải thiện yếu tố khả năng chịu tải mà còn cải thiện yếu tố giảm lún. Kết quả cho thấy khả năng chịu tải đã được cải thiện từ 33,8% lên 40,59% khi sử dụng các loại geocomposite khác nhau.

Từ khóa

#geosynthetic #geocomposite #đất mềm #khả năng chịu tải #lún đất #hiệu ứng giam giữ

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