Construction method of grid mesh in roadbed filling
Many customers through our website to call to consult the gabion network, then today I will explain the gabion network. At present, most of the new highway projects are
located in mountainous and hilly areas, with large changes in terrain, in which high fill and steep slope embankments are dominant, with little arable land resources,
requiring a large number of retaining structures. Shrink the foot of the slope to ensure the stability of the slope. Green reinforced gabion retaining wall is a new type of
green environmentally friendly high slope protection with galvanized plastic coated green reinforced gabion as the main material, which is in line with the requirements
of “safe and reliable, economic savings, technological innovation, ecological environment”. The concept of spiritual protection has been vigorously promoted in our
country in recent years.
02 method principle
Green reinforced gabion flexible ecological retaining wall is a kind of supporting structure that combines reinforced soil technology and ecological restoration technology for
ecological and environmental protection slope protection. The principle is to bury high modulus geosynthetics into the soil in order to improve the shear strength and tensile
properties of the soil and change the stress-strain field of the soil in the retaining wall.
03 Construction Technology
Construction Preparation, Measurement and Sampling, Basement Excavation, Foundation Treatment, Cyclic Construction (Geogrid and Grid System Installation in Layers,
Backfilling and Compaction in Layers) ~ Wall Greening.
04 Characteristic Methods
(1) Ecological environmental protection: the size and shape of the filler is required to be loose, and local stone and sandy soil can be utilized for backfilling according to local
conditions, and after the stone holes are filled into the soil, it will provide conditions for the growth of plants, and provide conditions for the growth of soil. Favorable to
ecological recovery.
(2) Economy and economy: low requirements for foundation and stone, no need for drainage holes and anti-filtration layer, simple and fast construction, low comprehensive cost.
3) Safe and reliable: rigid materials and loose materials between the flexible materials. Its high degree of flexibility enables the structure to adapt to large uneven settlement and
unpredictable local scouring, and the structure is capable of self-regulation and repair.
4）Technological innovation: it is an innovative support structure integrating reinforced soil technology and ecological slope protection technology.
05Engineering application
G228 port communication and S319 Zhangting Road communication construction project is a north-south line, north of Shengshan Land Port Road Henghe to the physical boundary
section, crossing the southeast water system, deep passenger dedicated line in the form of roadbed across Hangzhou Mountain. Tunnel, through the seed mountain, head of the
village to set up an independent long tunnel, in the convergence back to the mother port village, the new village, high field Li family village payments, while crossing the Yao River to
the small Yong Railway, the line continues to the south by the five horse village port town Guo m village, Lu village, three room, the end of the Lu Lu land port in the Hangzhou-Ningbo
Expressway and the exchange of construction, a total length of 9.218 kilometers.
06Quality control
(1) steel wire thick galvanized plastic anti-corrosion treatment, coating adhesion requirements: when the steel wire around the mandrel diameter twice the diameter of the steel wire
6 weeks, rubbing the steel wire with a finger, will not flake or crack.
(2) mesh surface tensile strength of 50kn / m, green reinforced gabion suppliers should provide the national certification and accreditation supervision and management commission
certified testing unit issued by the mesh surface tensile strength test report.
(3) The tying steel wire shall be made of the same material as the mesh steel wire. In order to ensure the strength of the connection, it should be alternately wound with single and
double loops at intervals of 10 to 15 cm. Meanwhile, in order to ensure that the floor surface of each gabion unit is smooth and does not bend, it is necessary to tighten the floor
surface by hitting 2 rebars at the bottom of the floor. The edges of the upper and lower gabion units shall also be twisted together to ensure that all gabion units form a continuous and
stable whole structure.
4) Coating weight: galvanized plastic coating green reinforced