Open links in new tab
  1. Nature
    https://www.nature.com/articles/s42003-023-05575-7

    Attachment discs of the diving bell spider Argyroneta aquatica

    • To adhere their silk threads for the construction of webs and to fix the dragline, spiders produce attachment discs of piriform silk. Uniquely, the aquatic spider Argyroneta aquatica spends its entire life cycle … See more

    Introduction

    Silk has enabled the spiders to spread to almost every terrestrial ecosystem on Earth1. … See more

    Nature
    Results

    Weaving of the attachment discs
    Underwater, the dense coat of hydrophobic setae on the opisthosoma and the base of the legs keeps the boundary between water and air at … See more

    Nature
    Discussion

    The most important finding of the present study is that the water spider Argyroneta aquatica produces its attachment discs underwater inside of the air layer maintained … See more

    Nature
    Methods

    Animals
    Living spiders of the species Argyroneta aquatica were caught in the artificial stream lake Rosensee in Raisdorf near Kiel, Germany, … See more

    Nature
    Data availability

    All data that support the findings of this study are included in the text, figures, and supplementary material. The source data for Fig. 4 can be found in Supplementary data set 1, … See more

    Nature
    What is a walking dragline?
    They are equipped with tracks or wheels that allow them to move independently across the worksite. These machines are highly versatile and well-suited for open-pit mining and large-scale earthmoving projects. Walking draglines are known for their efficiency, mobility, and ability to handle a wide range of materials.
    alwepo.com
    Feedback
    Table of Contents
    Introduction
    Results
    Discussion
    Methods
    Data availability
    What is a walking dragline?
     
  1. The dragline is designed to excavate below the level of the machine. A dragline usually does not have to go into a pit or hole in order to excavate. It operates adjacent to the pit while excavating material from the pit by casting its bucket. This is very advantageous when earth is removed from a ditch, canal, or pit containing water.

    Construction Planning, Equipment, CHAPTER DRAGLINES AND ... …

    assakkaf.com/Courses/ENCE420/Lectures/Chapter18.pdf
    Was this helpful?
  2. People also ask
    What is a dragline & how does it work?
    Dragline is the largest equipment ever built on this planet. It has the ability to excavate very deep down the earth. Word drag is used because it has the ability to drag material at far distance from the machine. Dragline consists of drag rope, large bucket, boom, hoist rope and driving motors. As shown in the figure;

    Dragline Excavator - Engineering Intro

    engineeringintro.com
    How do dragline excavators work?
    Mining: Dragline excavators often dig deep pits to extract minerals and metals. They can reach depths of up to 200 feet and dig a wide area so that mining companies can collect more minerals and metals efficiently. Land Reclamation: Dragline excavators are also used for land reclamation projects.

    Big And Mighty: The Evolution Of Dragline Excavators And Their Impact

    theconstructor.org
    What is a walking dragline?
    They are equipped with tracks or wheels that allow them to move independently across the worksite. These machines are highly versatile and well-suited for open-pit mining and large-scale earthmoving projects. Walking draglines are known for their efficiency, mobility, and ability to handle a wide range of materials.

    Dragline Excavators: A Mighty Force in Earth Moving - alwepo

    alwepo.com
    What is a heavy-duty dragline?
    Heavy-duty draglines are designed for larger-scale projects such as large construction sites or mining operations. These machines are built with much larger hoists, motors, and lines than wire rope draglines. They are capable of moving a larger bucket with greater capacity and force.

    Big And Mighty: The Evolution Of Dragline Excavators And Their Impact

    theconstructor.org
    Does a dragline have to go into a pit or hole?
    A dragline usually does not have to go into a pit or hole in order to excavate. It operates adjacent to the pit while excavating material from the pit by casting its bucket. This is very advantageous when earth is removed from a ditch, canal, or pit containing water.

    Construction Planning, Equipment, CHAPTER DRAGLINES AND ... - assak…

    assakkaf.com
    What are the components of a dragline?
    Dragline consists of drag rope, large bucket, boom, hoist rope and driving motors. As shown in the figure; A large bucket is attached with dragline boom (it is truss like structure). Bucket is controlled with the help of number of ropes and chains. There are two separate function ropes are attached with bucket.

    Dragline Excavator - Engineering Intro

    engineeringintro.com
    Feedback
  3. YouTube
    https://www.youtube.com/watch?v=G0vHCxEn-UQ

    Dragline Water Excavation - YouTube

  4. alwepo.com
    https://alwepo.com/en/dragline-excavat…

    Dragline Excavators: A Mighty Force in Earth Moving

    Jul 31, 2024 · In water resource projects, dragline excavators are used to build and expand reservoirs. They can efficiently excavate soil and rock to create storage space for water, which is vital for irrigation, hydroelectric power …

  5. Science | AAAS
    https://www.science.org/doi/10.1126/sciadv.…

    Spider dragline silk as torsional actuator driven by …

    Mar 1, 2019 · It is known that spider dragline silk is particularly sensitive to water. When wetted or saturated in a high relative humidity (RH) atmosphere, dragline silk can shrink up to 50% in length concomitantly with radial swelling …

  6. The Constructor
    https://theconstructor.org/construction/equip…

    Big And Mighty: The Evolution Of Dragline Excavators …

    Dragline excavators have become integral to modern construction projects due to their ability to dig deep and swiftly, often referred to as power shovels; dragline excavators are used to digging trenches, passages, and pits with impressive …

  7. Images of Dragline in water

    bing.com/images
    See all images
  8. Galveston District, U.S. Army Corps of Engineers
    https://www.swg.usace.army.mil/Portals/26/docs/PAO/Dredging 101.pdf
    [PDF]

    Dredging 101 Dredging and Disposal Workshop - United …

  9. Wikipedia
    https://en.wikipedia.org/wiki/Dragline_excavator

    Dragline excavator - Wikipedia

  10. assakkaf.com
    https://assakkaf.com/Courses/ENCE420/Lectures/Chapter18.pdf
    [PDF]

    Construction Planning, Equipment, CHAPTER DRAGLINES …

  11. ScienceDirect
    https://www.sciencedirect.com/.../dragline

    Dragline - an overview | ScienceDirect Topics

  12. Engineering Intro
    https://www.engineeringintro.com/all-about...

    Dragline Excavator - Engineering Intro