Cad general drawing of highway subgrade protection engineering design

Highway grade: design speed of expressway: 80km/h, width of integral subgrade: 24.5m, number of lanes: two-way four lanes, of which the central separation belt is 2.0m, the curb on both sides is 0.5m wide, the lane on each side is 2 × 3.75m wide, the hard shoulder on both sides is 2.5m wide (including 0.5m curb), and the earth shoulder on both sides is 0.75m wide. 2% cross slope is set for carriageway, curb and hard shoulder in general sections, and 4% cross slope is set for earth shoulder. Separated subgrade is 12.25m wide, one-way double lane, carriageway is 2 × 3.75m wide, hard shoulder on the left side is 0.75m wide (including 0.5m of curb width), hard shoulder on the right side is 2.5m wide (including 0.5m of curb width), and earth shoulder on both sides is 0.75m wide. 2% cross slope and 4% cross slope shall be set for carriageway, curb and hard shoulder of general road sections. Included in the drawing: General design drawing of reinforced earth retaining wall General design drawing of inclined retaining wall General design drawing of retaining wall for half road and half bridge in excavation section General design drawing of retaining wall for counterweight retaining wall Dimensions table General design drawing of counterweight retaining wall Subgrade protection Support and Retaining Works Scheme Table Design Drawing of Maintenance Steps for Cutting Slope Half fill and half cut Subgrade Shoulder Protection in Steep Slope Section Design drawing of toe protection Design drawing of solid face wall Design drawing of cutting retaining wall Design drawing of stone filled subgrade Design drawing of fully paved slope protection by mortar laying Design drawing of protection for excavation by hanging mesh and planting climbing vine Design drawing of protection by hanging mesh and shotcreting Design drawing of slope protection by mortar laying of waterlogged embankment Design drawing of slope protection by hanging wire mesh and shotcreting base material Green slope protection by three-dimensional geotextile mat planting grass Design Drawing of Spraying Grass (Shrub) Planting Landscaping Design Drawing of Excavation Mortar Masonry Arch Framework Slope Protection Design Drawing of Mortar Rubble Cutting Low Wall Slope Protection Design Drawing of Reinforced Earth Retaining Wall Design Drawing 8 Design Drawing of Balance Weight Shoulder Wall Design Drawing 11 Design Drawing of Left and Right Oblique Shoulder Wall Design Drawing of Left and Right Oblique Embankment Wall Transition Section Design Drawing Left and Right Design Drawing of Right Oblique Embankment Wall Design Drawing of Left and Right Balanced Weight Embankment Wall Transition Section Design Drawing of Left and Right Balanced Weight Embankment Wall Design Drawing of Left and Right Shoulder Wall...... 135 pieces in total

This data is the design drawing of urban road subgrade protection engineering. Lattice grass planting slope protection is applicable to embankment with slope height of H>8m, in which three-dimensional mesh spraying grass planting protection is used for the range of H ≤ 8m, and lattice grass planting slope protection is used for the range of H>8m.

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Designed in 2015, 2 CAD drawings in total

1. The parapet wall body (including wall cap and ear wall) is built with M7.5 cement mortar rubble. The hollow window parapet wall body (including wall cap and ear wall) is built with M7.5 cement mortar rubble. C15 concrete precast slab is laid in the window hole. The precast slab is fixed with φ 20 rivets. The thickness of the protective layer of the iron wire in the slab is 2cm. The steel backing plate is embedded in the surface of the rivet hole. The top width of the retaining wall and the open window retaining wall is 0.4m, the breast slope is 1: m, the back slope is 1: n (n=m-0.05), and the inclination of the wall bottom is 0.2:1. 2. In order to improve the stability of the retaining wall, when the wall height is greater than 8m, a ear wall shall be set in the middle of the retaining wall; When the wall height is more than 13m, set two ear walls with a spacing of 4~6m. The bottom width of ear wall is 1.0m. 3. Staggered abutment is set between the upper and lower retaining walls of the multi-stage retaining wall. The width of stagger abutment is 2.0~5.0m, and 4% transverse drainage slope is set outside the stagger abutment. Except for the railing part to be placed with C15 concrete, the rest parts are the same as the parapet masonry. 4. The top parapet wall of single-stage parapet or multi-stage parapet is provided with a 0.30m thick wall cap and 1.0m wide cap. 5. φ 0.1m PVC pipe drain holes shall be staggered every 2~3m at the top, bottom, left and right of the shoulder part at the height of the wall. When the stratum is soil and soft rock, a 0.3m thick nest shaped sand gravel inverted filter is set within 0.5 × 0.5m behind the drain hole. 6. An expansion joint with a width of 0.02m shall be set every 10~20m along the line of the parapet wall and at its connection with other buildings. Asphalt hemp bars shall be filled along the inner, outer and top sides of the wall in the joint with a depth of 0.2m. 7. When the height of the retaining wall is greater than or equal to 6m, a tether ring with a spacing of 5m shall be set on the wall cap and staggered platform; An inspection ladder shall be set in the middle of the parapet wall, and a group of 3 × 2.0m angle steel column railings shall be set on the staggered platform between the upper and lower inspection ladders. For the size of the railings, see the design drawing of "Shi Tai Shi Lu Tong 11". 8. The rivets and steel backing plates used for the hollow window parapet must be rust proof before installation. After the surface rust is removed, red lead shall be applied first, and then rust proof paint shall be applied three times. During installation, the panel joints shall be constructed with M10 cement mortar. ...... 7 sheets in total, designed in 2010

This data is: design drawing of subgrade protection works (marked with details), including: design drawing of subgrade protection works, elevation of mortar paved slope protection, schematic diagram of sprayed grass (shrub) greening slope, cross-sectional diagram of sprayed grass (shrub) greening, elevation of cutting parapet wall, cross-sectional diagram of cutting parapet wall, bill of quantities per 100m of sprayed grass (shrub) greening slope Schematic diagram of window type mortar rubble lining arch, mesh shotcrete layout, design drawing of submerged embankment mortar slope protection, stone filled subgrade, design drawing of stone filled embankment

Cross section layout of retaining wall Design drawing of toe protection, cast-in-situ detail drawing of retaining wall top of balance weight shoulder, schematic diagram of drain hole, inverted filter and abutment back backfill of balance weight embankment retaining wall, layout plan of three-dimensional geonet planting, slurry revetment of immersed embankment, etc

The subgrade protection works can be divided into the following two types: (1) Slope protection includes 1. Plant protection: grass planting, turfing, and tree planting. 2. Engineering protection (mineral material protection): sash protection, cover, face protection wall, dry rubble slope protection, mortar rubble slope protection, mortar precast block slope protection, anchor wire mesh shotcrete, shotcrete slope protection. （2） Erosion protection of riverbanks along river banks 1. Direct protection: plants, masonry, gabions, retaining walls, etc. 2. Indirect protection: spur dike, dam alignment and other guiding structures as well as river reconstruction and forest protection belt construction.  

There are 23 drawings in total, attached with: scheme of subgrade protection and retaining works

The net distance between the arch skeleton of slope protection is 3m × 3m. The main skeleton is U-shaped, 0.6m wide, and the branch skeleton is L-shaped, 0.4m wide. The skeleton is embedded in the embankment slope with a depth of 0.6m. The carrier pile is composed of concrete pile body and carrier, and the diameter of the carrier pile is 0.45m. The pile cap is set at the top of the pile cap, and 0.6m gravel cushion is set at the top of the pile cap, with two layers of high-strength geogrid sandwiched. ...... 115 sheets in total

The drawings include 12 general design drawings for shallow treatment of soft foundation, general design drawings for plastic drainage board treatment of soft foundation, general design drawings for gravel pile soft foundation treatment, pressure grouting anchor bolt frame grass planting protection, general design drawings for anchor cable frame grass planting protection, design drawings for prestressed anchor cable, general design drawings for anchor cable (tension type), and general design drawings for SNS passive protection system. General design drawing for shallow treatment of soft foundation: applicable to sections with soft soil layer thickness ≤ 4.0m. General design drawing of plastic drainage board for soft foundation treatment: this drawing is used for sections where plastic drainage board is used for soft foundation treatment. H in the figure is the embankment fill height, which is applicable to fill sections with soft foundation thickness greater than 4m and subgrade fill height greater than 5m. B1 and H1 are respectively the width and height of the counter pressure berm. Fill sections with height greater than 5m. B1 and H1 are respectively the width and height of the counter pressure berm. General design drawing of culvert foundation and soft foundation reinforcement by vibrating sinking granular pile: this drawing is applicable to culvert foundation foundation with soft layer thickness greater than 4.0m and soft foundation treatment with soft layer thickness greater than 10.0m. Crushed stone piles mixed with 5-8% cement are used to improve the foundation bearing capacity and reduce settlement. General design drawing of grass planting protection by pressure grouting anchor bolt frame: this drawing is the design drawing of grass planting protection by hanging nets on the pressure grouting anchor bolt frame (3m × 4m) of the cutting slope, which is applicable to the reinforcement or pre reinforcement protection of high slopes or unstable slopes in rock sections such as mudstone, sandstone, mudstone with sandstone and other rock sections with excavation slope ratio of 1:0.5~1:1.0. General design drawing of grass planting protection for anchor cable frame: this drawing is the design drawing of grass planting protection for anchor cable frame (3m × 4m) hanging net on cutting slope, which is applicable to the protection of cutting slope prone to sliding failure such as limestone, sandstone and mudstone with 1:0.5~1:1.0 excavation slope ratio. The general design drawing of SNS passive protection system adopts RXI-075 SNS passive protection system with protection energy level of 750KJ. ...... 12 sheets in total

At the junction of embankment, soft rock and soil cutting, Design drawing of transition section at the junction of embankment and cutting, Design drawing of transition section between embankment and abutment
Design drawing of transition section between embankment and horizontal structure, Design drawing of transition section between cutting, tunnel and abutment
...... 5 sheets in total

1. When the cutting subgrade bed is soil, easily weathered soft rock or expansive (rock) soil, the surface of the subgrade bed shall be replaced with 0.55m thick graded crushed stone and 0.15m thick medium coarse sand to meet the requirements of the surface of the subgrade bed. The surface of the bottom layer of the subgrade bed shall be made into a 4% drainage slope to both sides. Under the surface layer of the subgrade bed, replace with 1.0m thick ash soil (0.5m when the base is treated with lime soil compaction piles), and pave a layer of two cloth and one membrane geotextile (600g/m2) on the top surface of the ash soil. 2. When the cutting subgrade bed is soft rock and strongly weathered hard rock, the surface layer of the subgrade bed shall be replaced with 0.55m thick graded crushed stone and 0.15m thick medium coarse sand and meet the requirements of the surface layer of the subgrade bed. The surface of the bottom layer of the subgrade bed is made into a 4% drainage slope to both sides. 3. For half filled and half excavated subgrade, when the excavated part is rock, the whole subgrade surface shall be excavated and replaced within 1.0m below the subgrade surface, with the same filling as the embankment, and 4% outward drainage slope shall be set. When the excavation part is soil layer (including soft rock easy to be weathered), replace 1.0m (0.5m) thick Erba lime soil under the surface of the subgrade bed, and lay a layer of two cloth and one membrane geotextile (600g/m2) on the top of Erba lime soil. ...... 1 sheet in total, designed in 2010

The drawing is the general drawing design of highway subgrade and pavement drainage and side ditch works, including the design of chute, blind ditch, etc. ... 18 sheets in total.