Gabions have been around for over a hundred years and have a wide range of applications and new ones are continually being found. We have listed below the most common applications to date.
Water Conservancy
The development and control of the river-ways concerns the technology of laying protective layer,with permanent protective function,on sections.The ston gabion can control water flowing volume and protect water resource from running off in holding the neigh-boring water resource and protecting and controlling the zoolory.
Main Characteristics of Water Conservancy:
Slope Protective Project
The development and control of the river-ways concerns the technology of laying protective layer,with permanent protective function,on sections.The ston gabion can control water flowing volume and protect water resource from running off in holding the neigh-boring water resource and protecting and controlling the zoolory.
Main Characteristics of Slope Protective Project:
Gabion Gravity Retaining Walls
Gabion gravity retaining walls systems are monolithic gravity mass structures and follow standard design methods for gravity retaining walls. The following information is provided by QiaoShi as a design guide to assist Professional Engineers, Government Agencies, Land Developers, and Contractors in the proper design, specification, construction and inspection of gabion gravity retaining walls.
Gabion walls are constructed with natural stone. As drainage occurs soil particles are deposited into the small voids of the natural stone fill within the gabion wall allowing for pockets of vegetation to take root.
A flexible double twisted mesh gabion is designed to settle without fracture and adhere to the ground as scour occurs. Graded fill material ranging from 4"-8" for standard gabions and 3"-6" for reno mattresses will ensure uniform flexibility of the apron and will create a new state of equilibrium of the structure once settlement has occurred providing continued stability. Gabion aprons are commonly used to protect the toe of a gabion retaining wall structure from scour that could cause undermining in channel works applications. It is recommended that the gabion apron be a minimum of 9"-12" in depth. The length ofthe gabion apron shall extend beyond the toe of the structure a minimum of 2 times the anticipated depth of scour. This will ensure that the gabion apron reaches just beyond the outer limit of the anticipated scour hole that may form.
The gabion apron will require minimal excavation and grade work. Generally the gabion apron is placed directly on the ground utilizing a geotextile filter fabric between the gabion apron soil interface to prevent and leaching of soils from underneath the apron. If the gabion apron is placed in relatively deep water, and efficient method of large scale placement is prefabricating the apron on a barge and then launching it into the water. The size of the gabion apron that can be placed by this method is limited only by the deck area of the barge. Gabions or reno mattresses may also be connected together filled and then placed into the water with a sling arrangement. This method is frequently used for building scour-resisting mats around bridge piers etc. Gabion aprons may be fabricated using Terra Aqua standard PVC gabion units or with QiaoShi PVC reno mattresses.
It may be determined, through an investigation and stability analysis, that additional stability of the gabion wall may be required to achieve acceptable factors of safety for sliding. One option to pursue prior to enlarging the gabion wall cross section for additional stability is to place the gabion gravity retaining wall on a 6 – 10 degree batter towards the retained slope. This will require the founding soils to graded and compacted to accommodate for the specified wall batter.
Bridge Protection System
Gabions can be employed in a variety of ways to stabilize soil conditions around bridges, bridge piers and bridge abutment slopes. Generally the angle of the slope to be protected shall determine what structure type is best suited for each application. Slopes with an angle of 1on1 or steeper require standard gabion retaining wall protection. Slopes with an angle of 1 on 1.5 or less may use a gabion or reno mattress slope protection.
Reno Mattress is a double twisted hexagonal woven galvanized steel wire mesh compartmented basket with a rectangular mattress shape. The compartment or cells of the reno mattress are of equal size and dimension and are formed by internal diaphragms being placed within the basket providing even distribution of the stone fill throughout the mattress even after structural movement. Even distribution of the stone fill ensures that the reno mattress maintains intimate contact with the foundation soil.
Main Characteristics of Bridge Protection System: