First, the general situation of the project

Jiangxi Wentang town flood control project of city of Yichun province across the Strait water sideslope protection attack using gabion mat King stone embankment slope ecology protection, riverpile No. 0 + 000 ~ 5 +073, the full-length 5073m. The tooth wall using C20 concrete cogging, below the flood level using gabion mat King Stone Embankment Slope Ecology Protection and sowing seeds, above flood with turf revetment. Gabion mat used in this project, using ecological grid, it isthe high galvanized low carbon steel wire corrosion resistance, abrasion resistance, high strength,by special machine woven into five angular, hexagonal mesh mesh. As shown in figure D, refers to the stranding center line axis distance.

Two advantages, gabion mat King Stone Filling ecological slope protection

(1) the overall good

Gabion mat body itself and the middle spacer are made of homogeneous material bound connection, large area assembly, without joints are connected into a whole, good integrity.

(2) strong stability

If the root fracture single wire gabion mat, cage is not scattered, the whole structure will not bedamaged, strong stability.

(3) good water permeability

The voids exist gabion mat box filling stone, a discharge to slope Houtu body water, thereby reducing the groundwater pressure after slope, and is conducive to the growth of aquatic plants.

(4) the durability is good

Gabion mat materials with high galvanized low carbon steel wire corrosion resistance, abrasion resistance, high strength, strong oxidation resistance, durable, the engineering gabion matdurability used for 30 years.

(5) the construction is convenient

Gabion mat box installation is suitable for working on the land and in the water, Jing stone filling method is simple, can use mechanical or manual filling, don't need a professional construction team, ordinary workers a teaching will be, very convenient.

(6) the operation and maintenance is simple and low cost

Because the gabion mat slope protection has good flexibility, if the local erosion slope collapse will not affect the overall quality, only need to dismantle part filling slope destruction after binding installation, simple operation and maintenance, the cost relative to the concrete slope protection ormasonry revetment are much lower.

(7) economic and environmental protection

This project adopts the river dredging excavated pebbles as filling material, which not only meet the requirements of the landscape (grass seed sowing), relative to the cost of concrete slope protectionor masonry revetment are much lower. And because the gabion mat slope protection with good water permeability, is conducive to the surrounding ecological environment recovery, has important significance for environmental protection.

The construction procedure and method of three, gabion mat King Stone Filling ecological slope protection

(1) the construction procedure

According to the requirements of design drawings surveying and setting out, first with the excavatorexcavation slope and excavation slope whole tooth wall trench, then pouring construction of concrete rack wall rack wall construction completed and maintenance after a certain time of artificialslope refinement, and laying 150mm thick sand gravel cushion layer and compacted according to design requirements, and then the stone cage net pad box installation, artificial mechanical loadingstone, the last bar sealing cover and grass seed sowing etc..

(2) construction method

A. banding spacing mesh. Artificial lift gabion mat at approximately 90 degrees, lashing spacing mesh become box, binding line according to the design using the same material wire, double stranded 20cm binding and bear each interval. The interval on the net piece around under the fixedand lashing bear.

B. laying gabion mat. Approved laying position, according to the design icons placed gabion mat. In the whole should comply with the design requirements, combined with the vertical direction, lashingall adjacent gabion box line, from the beginning of the vertical direction down with steel wire around2 ~ 3 laps later, lashing, gabion mat adjacent the Internet under the border line shall be binding, in order to one link adjacent gabion mat body, each interval of 20cm binding. Gabion mat body connected, can into the box and packing.

(3) filling the pebbles

A. first use scaffolding fixed gabion mat, so as to avoid the deformation. The use of mechanical orartificial cobble stone filling, filling shall be a fill style, in order to ensure the gabion mat shape integrity. Each stone cage spaces shall at the same time in order to ensure uniform loading of pebbles, stone cage founder. Stone for approval according to the design requirements, prohibited the use of rust stone, weathered stone, waste stone, stone grain size shall not be less than 1.5 times the diameter of the mesh, filling stone diameter except.

B. stone filling, first with the diameter of 150 ~ 200mm of stone decoration in uniform bottom, thenstart code built about 250mm in diameter from the four corners of the stone cage, and then graded layered rock fill furnishings appropriate size match box, filled the middle filling is completed, a box body fixed. In the process of filling when the filler to box 1 /4, filling vacancies with small gravel or sand, and with the drill rod tamping time, adjust the cabinet lines. External exposed parts, subject to artificial masonry, neat dense packing, to beautiful. And set the amount of reinforcement according to actual need.

(4) bound box cover

Cover before the top stone paving shall be smooth, check each cage filling stone height and the height difference in the + 5cm, length difference in + 3cm, namely the available wire tie wire bound box cover, the box cover is bound, up and down, sealing edge connection is closed, the box around the box line according to the 15cm spacing again lashing, horizontal and vertical lines are basically the same, so that all the cages are connected into a whole, overall protection of bank slope.

(5) water gabion mat body vegetation and Hong