1, the planting roof design is best equipped with layout guide map. Focus on inspection of import and export, emergency evacuation exit, water intake point, drainage observation well, fire control facilities, water and electricity warning, etc.
2, planting roof vents are not allowed to be buried in planting soil, should be decorative protection.
3. When the roof is designed to be planted around vents or other equipment, a space of 1.0m~ 1.5m should be reserved for future maintenance.
4. Roof design When planting around air conditioners or kitchen range hoods, decorative shading should be considered to prevent plants from being blown to death by dry and hot winds.
5, roof design, arbor, pavilion or sun room and other leisure facilities should pay special attention to the stability of the wind.
6. When there is solar photovoltaic power generation or water heater equipment on the roof, the designed plant height must be lower than the solar lighting panel.
7. It is best to choose solar lights for planting roof garden lights. However, under special weather conditions such as cloudy days, it is also necessary to properly configure electrical lamps for emergency use.
8. The design of protective guardrail shall meet the following requirements:
1) The garden guardrail used for climbing and greening should meet the requirements of plant growth;
2) Metal guardrails and reinforced concrete guardrails shall be provided with foundations, and the foundation strength and buried depth shall meet the design requirements. When there is no clear requirement in the design, the following provisions shall be observed: the concrete foundation size of the guardrail with a height below 1.5m shall not be less than 300mm×300mm×300mm；; ; For guardrails with a height exceeding 1.5m, the size of concrete foundation shall not be less than 400 mm× 400 mm× 400 mm;
3) The strength of concrete for garden guardrail foundation shall not be lower than C20；;
4) The metal guardrail processed on site shall be rustproof;
5) The buried depth of main piles of bamboo guardrail shall be not less than 500mm, and the spacing between main piles shall be less than 6m;
6) The gap between railings should meet the design requirements. If there is no clear requirement in the design, it should be below 15cm.
9, rain observation well
1) The foundation pit shall be excavated at the same time as the trench, and the main line of Jing Zuo shall be on the same axis as the pipeline in the trench during excavation. The slope of foundation pit is consistent with that of pipe trench;
2) Drainage and dewatering measures should be taken in areas with high groundwater level or in rainy season;
3) The foundation of the inspection well shall be calculated and determined according to the local geological survey data and the dragging force under the backfill soil;
4) The length of the shaft shall be the height from the bottom of the socket connecting the shaft to the design ground of Jing Zuo minus the clear distance from the top of the shaft to the ground; When it is difficult to accurately determine the elevation of the ground or pavement, the length of the wellbore can be reserved appropriately;
5) Before the manhole cover is installed, accurately measure the length of the shaft, and cut off the redundant part of the shaft;
6) The installation of manhole covers shall be determined according to the nature of the conveying medium of inspection wells, and sewage manhole covers and rainwater manhole covers shall not be confused;
7) The upper mouth of the sewage inspection well shall be provided with an inner cover with a protective cover seat.
10, swimming pool waterproof
1) The water tank should be built on the stable foundation, and the foundation should meet the bearing capacity requirements;
1 1, garden sketch
1) Dieshan design shall meet the following requirements:
A Dieshan should consider the needs of water supply and drainage system, lighting system and plant planting as a whole in the process, and make technical disclosure of sub-projects in advance;
B. The bearing capacity of Dieshan foundation should be greater than 1.5 times of the total rock load; Lime-soil foundation should be 20cm below the ground, its area should be larger than the bottom of the mountain, and its outer edge should be 50cm wide;
C. Dieshan is located on land, and the foundation should be made of concrete above C20; Dieshan Mountain is located in the water, and the foundation should be C25 concrete or cement mortar not lower than M7.5. According to different topography and geology, special treatment can be done if there are special requirements;
D. The bottom-pulling stone shall be a stone with a thickness greater than 40cm and an area greater than 1m2; The bottom stone should be integrated with the back, zigzag connected and staggered.
E The stability of the mountain structure and main peak should meet the requirements of wind resistance and seismic strength;
F Dieshan chooses stone with consistent texture, similar color and uniform texture. Stone should be compacted without cracks, damage and peeling;
G Dieshan mountain contour line should be natural, smooth and harmonious, and the viewing effect should meet the design requirements.
2) The flower stand design shall meet the following requirements:
The flower frame foundation is suitable for general foundation, and the bearing capacity of the foundation should meet the design requirements. If the design does not put forward specific requirements, it should not be less than 80kPa. The buried depth of foundation should exceed the freezing line in this area;
B single-row concrete column section is not less than 300mm×250mm, double-row concrete column section is not less than 200 mm× 200 mm, reinforcement should not be less than secondary reinforcement Ф14× 4, protective layer should not be less than 30 mm, and concrete should not be less than C20；;
C flower frame is made of steel, and its wall thickness is not less than 5mm, or meets the design requirements. When welding connection is adopted, the weld grade shall not be lower than Grade 3.
3) The bearing capacity of dry fountain trench cover plate shall be greater than 2kn/m2. After installation, its horizontal elevation should be 3 mm ~ 5 mm lower than the ground pavement.
4) The design of garden revetment shall meet the following requirements:
A the foundation of the garden revetment should be relatively stable, and the soil quality should be uniform to prevent uneven settlement. The bearing stratum elevation shall be 500mm lower than the lowest water level elevation of the water body. Foundation cushion should be constructed according to the design requirements. If there is no clear requirement in the design, the foundation cushion should be 100mm thick concrete. Its width should be greater than the width of the foundation bottom100 mm; ;
B the width of the garden revetment foundation should meet the design requirements. If there is no clear requirement in the design, the foundation width should be 0.6 ~ 0.8 times of the height of the revetment body, the coping width should be at least 360mm, and the masonry mortar should be 1: 3 cement mortar;
C. Deformation joints are set for the Changyuan revetment every 20m ~ 30m, and the width of deformation joints is10mm ~ 20mm; ~ 20mm when the height difference at the top of the garden revetment is large, deformation joints should be set;
D the elevation of the dike top of the conventional garden revetment shall not be less than 0.5m from the elevation of the highest water level of the water body.
5) The design of overlapping water bodies in gardens shall meet the following requirements:
A. According to the materials, the structural main body of the garden water stack is divided into reinforced concrete main body, masonry main body and other structural main bodies. The standard value of the bearing capacity of the foundation soil layer should be above 60 kPa, and the soil compactness should be greater than 0.90. The soil quality should be uniform, and technical treatment should be carried out when the soil quality is uneven;
B. Masonry and concrete construction of the garden overlapping water shall be carried out in accordance with the requirements of corresponding codes and standards. When doing waterproof treatment, the waterproof coiled material should be stacked in the direction of overlapping water, the stacking length should be greater than 200 mm, and it should be cemented firmly with professional cementing materials; The waterproof, cementing and other materials used should meet the requirements of use conditions and environment.
6) The design of landscape bridge shall meet the following requirements:
A. When the landscape bridge span is more than 3m but less than 6m, the design drawings shall be reviewed by the professional design institute; When the span is more than 6m or arch bridge, steel bridge, truss bridge, cable-stayed bridge, suspension bridge and composite bridge are used, the design shall be carried out by a professional design institute;
B. When the landscape bridge spans more than 3m, geotechnical investigation should be carried out for the bridge foundation, and when the bridge is built in mountainous areas, the adverse geological conditions in mountainous areas should also be evaluated for the bridge site;
C The building materials used for the landscape bridge should meet the design requirements, and the stone strength used for the masonry bridge is greater than 30. Cast-in-place concrete shall be no less than C20, precast concrete shall be no less than C25, and steel shall be no less than Q235B. Wood shall be free from scars along the grain, and its moisture content shall be less than 12%, and shall be treated with anti-corrosion.
D The railing height of the large landscape bridge should be no less than 1.3m, and it can bear the horizontal thrust of 1kn/m at the top. When the distance between vertical poles is less than 1m, the vertical poles should bear the horizontal thrust of 1Kn. The vertical pole spacing of bridge railings should be less than 100mm, and there is no crossbar in the middle.
12, Garden Road Design
1) The concrete surface design shall meet the following requirements:
A concrete surface thickness should comply with the design requirements, design requirements, the thickness shall not be less than 80mm；;
B. The maximum particle size of coarse aggregate used in concrete should not be greater than 2/3 of the surface thickness, and the particle size of stone used on the surface of fine stone concrete should not be greater than15 mm; ;
The strength grade of surface C shall meet the design requirements and shall not be lower than C20.
2) Brick surface design shall meet the following requirements:
A brick adopts ceramic mosaic brick, cylindrical brick, ceramic floor tile and cement brick, which should be laid on the bonding layer;
B. The materials, masonry and construction quality acceptance of acid-resistant tiles, asphalt-impregnated bricks and cylinder bricks used for brick surfaces with anti-corrosion requirements shall comply with the current national standard "Code for Construction and Acceptance of Building Anti-corrosion Engineering" GB 502 12;
C in the cement mortar bonding layer with cylindrical brick, ceramic floor tile and cement brick surface, shall meet the following requirements:
A Before paving, the specification, size, appearance quality and color of the brick should be pre-selected, soaked and wet to dry for later use;
B. The jointing and caulking shall adopt cement of the same variety, strength grade and color, and shall be maintained and protected.
D when the ceramic brocade surface is spread on the cement mortar bonding layer, the bottom of the brick should be clean, and the ceramic brocade brick, bonding layer, corner, edge and wall surface should be closely attached. Mortar shall not be used to fill the wall;
E. When paving the surface layer of the cylinder brick on the asphalt binder, the cylinder brick should be cleaned, paving should be carried out on the hot asphalt binder, and it should be completed before the binder condenses;
F. When sticking the brick surface layer on the bonding layer with adhesive, the selection of adhesive should comply with the current national standard "Code for Indoor Environmental Pollution Control of Civil Building Engineering" GB 50325.
3) The width of paving stone used for pavilion shall not be less than 300mm; ;
4) The design of granite surface course shall meet the following requirements
A quality standards such as glossiness and appearance quality of granite shall comply with JC 205;
B after plastic diagonal allowable deviation is not more than 2 mm;
C the thickness of granite in Huayuan Road Square shall not be less than 50mm；; Luyuan square plate for small vehicles has a thickness of not less than 35mm and a strength of not less than 30MPa.
5) The pebble surface design shall meet the following requirements
A design without clear requirements, cement mortar thickness should not be less than 40mm, degree should not be less than m10; ;
B flat pebbles with pebble thickness less than 20mm shall not be paved.
6) The design of wooden pavement surface layer shall meet the following requirements:
A the longitudinal bending of a single piece of wood on the surface of a wooden pavement shall not exceed1/400;
B the clearance and spacing of the pavement slab shall meet the design requirements. When closely arranged, the gap should be straight; Interval time interval should be consistent and smooth.
7) Cement mortar not less than 1: 3 shall be used as the bonding layer and jointing slurry for kerb installation. The installation should be stable and not inclined.
8) The design of garden hall department shall meet the following requirements:
When concrete is used for the foundation cushion of a garden pavilion, its strength should be C 15, its thickness should be greater than 100mm, and the peripheral size of concrete foundation should be 50mm ~ 60mm； larger than the stone in the pavilion.
In general, the pavilion pool B is built with 1: 3 cement mortar. The top floor of the pavilion should not be less than 150mm from the water surface, and the surface of the pavilion should not be smooth, with an area of 0.25 ㎡ ~ 0.35 ㎡. In general, the step spacing should be 0.3m~0.4m, and the height difference between adjacent steps should not be greater than 25mm.
9) The design of the wooden plank road shall meet the following requirements:
A the foundation of the wooden plank road should be located below the frozen soil layer and poured with concrete above C25. When using desktop foundation, when its length is more than 25 linear meters, deformation joints should be set;
The length of one side of the cantilever part of the surface layer B shall be less than 15% of the total length of the plate.
13, plant fixation shall meet the following requirements:
1) Fixation of trees
A. Trees can be fixed by ground poles, ropes or underground;
B planting trees should be fixed firmly, and the place where the trees are tied should be padded to avoid damaging the trunk;
C. Build an irrigation cofferdam around the arbor planting hole. The diameter of the cofferdam should be 200 mm larger than the planting hole, and the height should be 150 mm ~ 200 mm.
14, irrigation
1) Special irrigation facilities shall be set up;
2) water the newly planted trees for the first time on the same day, the second time in three days and the third time in ten days;
3) Irrigation should be carried out regularly.
15, electrical appliances and lighting
1) Choose lighting appliances and facilities according to greening requirements;
2) Garden planting roofs should have lighting facilities; ;
3) Cable and other facilities shall be laid on the waterproof layer;
4) The wires should be laid underground or placed in a safe place, and the wires should be protected by protective sleeves;
5) Laying should keep a certain distance from perennial plants.
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