Construction process of indoor ski slope

Abstract

The application relates to a construction process of an indoor skiing slope, which comprises the following steps: (1) first waterproof roll material layer construction: A, floor base treatment; B, first waterproof roll material layer construction; C, water closing test; (2) antifreezing concrete layer construction: A, steel mesh binding; B, hot coil pipe construction; C, hot coil pipe pressure test; D, concrete pouring; (3) moisture-proof heat preservation layer construction: A, first moisture-proof layer laying on the top surface of the antifreezing concrete layer; B, heat preservation plate layer-by-layer laying on the top surface of the first moisture-proof layer; C, second moisture-proof layer laying on the top surface of the heat preservation layer; D, cement mortar leveling layer construction on the top surface of the second moisture-proof layer; (4) second waterproof roll material layer construction: A, roll material additional layer laying on the top surface of the cement mortar leveling layer; B, second waterproof roll material layer construction; C, water closing test; (5) waterproof concrete layer construction: A, steel mesh binding; B, cold coil pipe construction; C, cold coil pipe pressure test; D, concrete pouring.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of snow slope construction, in particular to an indoor skiing slope construction process. BACKGROUND

[0002] The indoor ski field is a building that realizes the all-year-round skiing sports by artificially making snow and controlling the indoor temperature and humidity environment, and maintains the high comfort of the suitable low temperature all the year round. With the opportunity of the sports meeting, the construction of the indoor ski field will enter the stage of rapid development. However, there are few related construction projects of the indoor ice and snow park at home and abroad at present, and a systematic professional system has not been formed in the professional technical field. The indoor snow slope can only be designed and constructed from the perspective of heat preservation at present, and the temperature of the indoor snow slope structure cannot be controlled according to the needs, which limits the promotion and application of the indoor skiing project. Especially for the building space below the snow slope floor, the snow slope floor is the top plate of the lower floor, and a large amount of water droplets will condense on the lower floor top plate due to the low temperature, which will have a great impact on the lower floor. For the snow slope with multiple functions, the snow field ground structure layer is more, and the process is complex. In addition, the concrete has a certain fluidity, and it is easy to form the condition of thick at the bottom and thin at the top in the pouring process. SUMMARY

[0003] In view of the above problems, the purpose of the present application is to provide an indoor skiing slope construction process, which has clear procedures and clear levels, can prevent uneven pouring of concrete, has high flatness of the slope after construction, can not only preserve the snow slope, but also control the temperature of the snow slope, prevent water condensation on the lower floor, and adapt to more occasions.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] An indoor skiing slope construction process, the slope of the skiing slope is 7-11°, (1), first waterproof roll layer construction:

[0006] A, floor base treatment: make the floor base surface firm, flat, clean, dry, and free of sharp protrusions, all holes are filled with cement mortar, and the honeycomb defects are repaired and treated, and the roll additional layer is laid;

[0007] B, first waterproof roll layer construction: according to the length of the construction section and the specification of the first waterproof roll, a reference line is drawn, and the first waterproof roll is laid from the low part of the skiing slope to the high part, and the length of the first waterproof roll is not less than 80mm; after the first waterproof roll is laid, the end is bonded and sealed with rubber asphalt adhesive;

[0008] C, closed water test: after the waterproof construction is completed, the slope waterproof is tested for 24 hours, and after the test is qualified, the 20mm thick mortar protection layer is constructed;

[0009] (2) Anti-freezing concrete layer construction:

[0010] A. Steel mesh lashing: When lashing the steel bars, use the eight-shaped buckle lashing method, and lash all the intersection points of two steel bars;

[0011] B. Hot coil construction: directly fix the hot coil on the steel mesh with a tie, the fixing interval of the straight pipe section is 0.7-1.0 m, and the fixing interval of the curved pipe section is 0.2-0.3 m;

[0012] C. Hot coil pressure test: perform the water pressure test on the hot coil, the test pressure is 1.35 MPa, and the pressure is stabilized for 1 h, and then the next step of concrete pouring is performed after the pass;

[0013] D. Concrete pouring: when pouring the concrete, pour from bottom to top along the length direction of the ski slope, the pouring width is controlled within 5 m each time, form several construction blocks along the length direction of the ski slope, and sequentially perform the segmented pouring task; in each construction block, set the elevation blocks along the transverse direction of the ski slope at an interval of 3 m, start from the low end of the construction block, gradually pour to the high end of the construction block, first spread the concrete, then use the flat vibrator to vibrate from the low end to the high end of the construction block for several times, the vibration length is 5 m each time, finally perform the manual troweling, control the pouring height according to the elevation blocks during the pouring process, and control the surface flatness within 5 mm;

[0014] (3) Moisture-proof and heat-insulating layer construction:

[0015] A. Perform the first moisture-proof layer laying on the top surface of the anti-freezing concrete layer, the lap width of the rolled material is not less than 80 mm during the laying, the longitudinal joints are staggered by more than 1 m, and the joints are compacted and fully adhered;

[0016] B. Perform the layered laying of the heat-insulating plate on the top surface of the first moisture-proof layer, the upper and lower joint is staggered by more than 500 mm, the surface of the heat-insulating plate is flat, the contact between the layers is tight without air gap, and the heat-insulating layer is formed;

[0017] C. Lay the second moisture-proof layer on the top surface of the heat-insulating layer, and the laying method is the same as that of the first moisture-proof layer;

[0018] D. Perform the cement mortar leveling layer construction on the top surface of the second moisture-proof layer, and the thickness of the cement mortar leveling layer is 30 mm;

[0019] (4) Second waterproof rolled material layer construction:

[0020] A. Lay the rolled material additional layer on the top surface of the cement mortar leveling layer;

[0021] B. The second waterproofing membrane layer construction: according to the length of the construction section and the specifications of the second waterproofing membrane, a reference line is drawn, and the second waterproofing membrane is laid from the low end to the high end of the ski slope, with the length direction of the second waterproofing membrane overlapping by not less than 80mm; after the second waterproofing membrane is laid, the rubber asphalt adhesive is used to bond and seal the end;

[0022] C. Closed water test: after the waterproofing construction is completed, the ski slope waterproofing is subjected to a 24-hour closed water test, and after passing the test, the 20mm thick cement mortar protective layer construction is carried out;

[0023] (5) Waterproof concrete layer construction:

[0024] A. Steel mesh binding: when binding the steel bars, use the eight-shaped buckle binding method, and all the intersection points of the two steel bars are bound;

[0025] B. Cold coil construction: the cold coil is directly fixed on the steel mesh with a tie, and the fixed interval of the straight pipe section is 0.7-1.0m, and the fixed interval of the curved pipe section is 0.2-0.3m;

[0026] C. Cold coil pressure test: the cold coil is subjected to a water pressure test, and the test pressure is 1.35MPa, and the pressure is stabilized for 1h, and after passing the test, the next step of concrete pouring is carried out;

[0027] D. Concrete pouring: when pouring the concrete, it is poured from the bottom to the top along the length direction of the ski slope, and the pouring width is controlled within 5m each time, and a plurality of construction blocks are formed along the length direction of the ski slope, and the pouring task is carried out in sections; in each construction block, the elevation block is set every 3m along the transverse direction of the ski slope, and the pouring is started from the low end of the construction block and gradually proceeds to the high end of the construction block: first, the concrete is spread, then the flat vibrator is used to vibrate from the low end to the high end of the construction block for several times, and the vibrating length is 5m each time, and finally the manual troweling is carried out, and the pouring height is controlled according to the elevation block during the pouring process, and the flatness of the surface is controlled within 5mm; twice troweling is carried out before the concrete is finally cured, and the surface is roughened.

[0028] Further, in the step (1):

[0029] In the floor base treatment, the sun and the shadow corners are made into a circular arc shape, the shadow corner is made into D≥50mm, and the sun corner is made into D≥10mm;

[0030] In the first waterproofing membrane layer construction, the first waterproofing membrane overlapping edge is compacted with a pressing roller when laying, the bubbles in the overlapping edge are discharged, and the compacted and adhered are tightly compacted, and the above operation is repeated until the laying operation is completed.

[0031] Further, in the step (2):

[0032] In the steel mesh binding, the steel mesh is single-layer bidirectional reinforcement, and the grid spacing is 150mm; 15mm thick horseshoe-shaped cushion blocks are arranged below at intervals of 600mm in a plum blossom type;

[0033] In the hot coil construction, the hot coil material is an HDPE pipe, and the bending radius of the bending part of the hot coil is not less than 8 times the outer diameter of the pipe;

[0034] In the concrete pouring, the hot coil is under pressure during pouring, and the pressure is not released before the final setting of the concrete; the transverse width of the ski slope is 30 meters, and the pouring length is controlled to be 50-60 meters at a time.

[0035] Further, in the step (3), the material of the first and second moisture-proof layers is a polyethylene plastic film with a thickness of 0.2mm; the female and male corners at the wall corners and pipe trench edges are formed into arcs with a radius of not less than 50mm, and an additional layer is added at the corners before laying with a width of not less than 300mm.

[0036] Further, in the step (4), in the second waterproof roll material layer construction, the second waterproof roll material lap joint edges are compacted by a pressing roller to expel the bubbles in the lap joint edges, and the compacted and adhered lap joint edges are repeatedly operated until the laying operation is completed.

[0037] Further, in the step (5):

[0038] In the steel mesh binding, the steel mesh is double-layer bidirectional reinforcement, and the grid spacing is 150mm; 15mm thick horseshoe-shaped cushion blocks are arranged below at intervals of 600mm in a plum blossom type; the cold coil is located between the double-layer steel meshes, and horse stool reinforcement is arranged between the double-layer steel meshes;

[0039] In the cold coil construction, the cold coil material is an HDPE pipe, and the bending radius of the bending part of the cold coil is not less than 8 times the outer diameter of the pipe;

[0040] In the concrete pouring, the cold coil is under pressure during pouring, and the pressure is not released before the final setting of the concrete; the transverse width of the ski slope is 30 meters, and the pouring length is controlled to be 50-60 meters at a time.

[0041] Further, in the steps (2) and (5), the temperature sensor is installed simultaneously with the concrete pouring.

[0042] The indoor ski slope construction process has the advantages that the process is clear and the levels are distinct, the concrete pouring is prevented from being uneven, the slope flatness is high after the construction is completed, the ski slope can be not only heat-insulated but also temperature-controlled, the condensate water of the lower floor is prevented, and the ski slope is suitable for more occasions. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 This is a schematic diagram of the structure of the ski slope in the indoor ski slope construction process of this invention. Detailed Implementation

[0044] The structure of the present invention and the desired technical effects will be described below with reference to specific embodiments and accompanying drawings. However, the selected embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0045] like Figure 1 As shown, this invention provides a construction process for an indoor ski slope with a slope of 7-11°. The slope includes a floor slab 1, on which the top layer sequentially comprises a first waterproof membrane layer 2, an antifreeze concrete layer 3, a first moisture-proof layer 4, an insulation layer 5, a second moisture-proof layer 6, a cement mortar leveling layer 7, a second waterproof membrane layer 8, a cement mortar protective layer 9, a waterproof concrete layer 10, and a snow layer 11. To control the temperature of the ski slope, a heat coil 12 connected to a heat source is installed within the antifreeze concrete layer 3. Due to the significant temperature difference between the year-round low temperature environment of the ski area and the temperature of the shopping mall below, the heat coil 12 prevents condensation from forming on the ceiling of the shopping mall below. A cement mortar protective layer 21 is provided between the first waterproof membrane layer 2 and the antifreeze concrete layer 3. A cold coil 13 connected to a cold source is installed within the waterproof concrete layer 10. The waterproof concrete layer 10 is in direct contact with the snow surface, and the cold coil 13 ensures that the snow layer 11 does not melt and that the overall environment remains at a low temperature for an extended period.

[0046] Preferably, the first waterproof membrane layer 2 is a TPZ polymer waterproof membrane, and the second waterproof membrane layer 8 is a self-adhesive SBS waterproof membrane, which can prevent water leakage from the upper structure. The first moisture-proof layer 4 and the second moisture-proof layer 6 are polyethylene films, which can protect the insulation layer 5 from moisture. The insulation layer 5 is an XPS extruded polystyrene insulation layer, which can isolate the temperature conduction between the upper cold coil 13 and the lower hot coil 12. In order to accurately control the temperature, temperature sensors are installed in both the antifreeze concrete layer 3 and the waterproof concrete layer 10.

[0047] Furthermore, in order to enhance the structural strength and fix the hot coil 12, a first steel mesh 14 is provided in the antifreeze concrete layer 3, which is tied to the hot coil 12; in order to enhance the structural strength and fix the cold coil 13, two second steel meshes 15 are provided in the waterproof concrete layer 10, which are located on the upper and lower sides of the cold coil 13 respectively.

[0048] The construction process for the indoor ski slope provided by this invention includes the following steps:

[0049] (1) Construction of the first waterproof membrane layer:

[0050] A, floor 1 base treatment: make the floor base firm, flat, clean, dry, and no sharp protrusions, all holes are filled with cement mortar, honeycomb defects are repaired; in addition, the male and female corners are made into a circular arc shape, the female corner is made into D≥50mm, and the male corner is≥10mm, and the additional layer of coiled material is laid;

[0051] B, the first waterproof coiled material layer 2 construction: according to the construction section length and the specification of the first waterproof coiled material, the reference line is pulled, and the first waterproof coiled material is laid from the low place to the high place, and the length direction of the first waterproof coiled material is not less than 80mm; specifically, when laying, the overlapping edge of the coiled material is compacted with a roller, the bubbles in the overlapping edge are discharged, and the coiled material is tightly compacted and firmly adhered; repeat the above operation until the laying operation is completed; after the first waterproof coiled material is laid, the rubber asphalt adhesive is used to bond and seal the end, so as to prevent the mouth from opening and the edge from being raised, and cause leakage hazards;

[0052] C, closed water test: after the waterproof construction is completed, the slope waterproofing is tested for 24 hours, and after the test is qualified, the 20mm thick mortar protection layer is constructed to avoid damage to the first waterproof coiled material layer 2;

[0053] (2), antifreeze concrete layer 3 construction:

[0054] A, steel mesh binding: when binding the plate steel, use the eight-character buckle binding method, and all the intersection points of two steels are bound; specifically, the steel mesh is a single-layer double-directional steel (first steel mesh 14), and the grid spacing is 150mm; the lower part is arranged in a plum blossom type with 15mm horseshoe-shaped cushion blocks at an interval of 600mm; the hot coil pipe is located above the steel mesh;

[0055] B, hot coil pipe 12 construction: the material of the hot coil pipe 12 is HDPE pipe, and no joint is allowed in the concrete. The hot coil pipe 12 is directly fixed on the steel mesh with a binding tape, and the fixed interval of the straight pipe section is 0.7-1.0m, and the fixed interval of the bending pipe section is 0.2-0.3m; the bending part of the coil pipe should not appear hard bending phenomenon, and the bending radius should not be less than 8 times of the outer diameter of the pipe;

[0056] C, hot coil pipe 12 pressure test: the hot coil pipe 12 is subjected to water pressure test, the test pressure is 1.35MPa (working pressure 0.9MPa), and the pressure is stabilized for 1h; after the test is qualified, the next step of concrete pouring is carried out; when pouring, the hot coil pipe is under pressure, and the pressure is prohibited to be released before the concrete is finally cured;

[0057] D, concrete pouring: when pouring concrete, pour from bottom to top along the length of the ski slope, control the pouring width within 5 meters each time, form several construction blocks along the length of the ski slope, and perform the segmented pouring task in turn; for example: the slope transverse width is 30 meters, the transverse width of each pouring is 30 meters, the length along the ski slope direction is 5 meters, forming a construction block of 30m*5m, before the initial setting of the concrete in each construction block, continue to pour the same size construction block upward along the ski slope direction, control the large-scale pouring within 50-60 meters along the slope direction each time, set the elevation block at an interval of 3 meters along the transverse direction of the ski slope in each construction block, start from the low end of the construction block, gradually pour from the low end to the high end of the construction block: first spread the concrete, then use a flat vibrator to vibrate from the low end to the high end of the construction block several times, each time the vibrating length is 5 meters, finally manually smooth, control the pouring height according to the elevation block during pouring, and control the surface flatness within 5mm; form a frost-resistant concrete layer 3;

[0058] (3) Construction of moisture-proof insulation layer:

[0059] A, lay the first moisture-proof layer 4 on the top surface of the frost-resistant concrete layer 3, the first moisture-proof layer 4 is made of polyethylene plastic film with a thickness of 0.2mm, the male and female corners at the wall corners and pipe trench edges shall be rounded with a radius of not less than 50mm, and an additional layer shall be added at the corners before laying, with a width of not less than 300mm; the overlap width of the rolled material during laying is not less than 80mm, the longitudinal joints are staggered by more than 1 meter, and the joints are compacted and fully bonded;

[0060] B, lay the insulation board in layers on the top surface of the first moisture-proof layer 4, the upper and lower layer joints are staggered by more than 500mm, the insulation board surface is flat, and the contact between layers is tight without hollowing, forming an insulation layer 5;

[0061] C, lay the second moisture-proof layer 6 on the top surface of the insulation layer 5, the laying method is the same as that of the first moisture-proof layer 4;

[0062] D, perform the cement mortar leveling layer 7 construction on the top surface of the second moisture-proof layer 6, the cement mortar leveling layer 7 is 30mm thick, it should be constructed as soon as possible after the plastic film is laid to avoid movement or joint opening of the plastic film due to wind and other factors;

[0063] (4) Construction of the second waterproof coiled material layer 8:

[0064] A, lay the coiled material additional layer on the top surface of the cement mortar leveling layer 7;

[0065] B. The second waterproofing membrane layer 8 is constructed: a reference line is drawn according to the length of the construction section and the specifications of the second waterproofing membrane, and the second waterproofing membrane is laid from the lower part of the ski slope to the upper part, with the lengthwise overlap of the second waterproofing membrane being not less than 80 mm; when laying, the overlap edge of the membrane is compacted with a roller to remove the air bubbles in the overlap edge, and the overlap edge is tightly compacted and firmly adhered; the above operation is repeated until the laying operation is completed; after the second waterproofing membrane is laid, the rubber asphalt adhesive is used to bond the end to seal it, so as to prevent the mouth from opening and the edge from being raised, thereby causing leakage hazards;

[0066] C. Closed water test: after the waterproofing construction is completed, the slope waterproofing is subjected to a 24-hour closed water test, and after the test is qualified, the 20 mm thick cement mortar protective layer 9 is constructed to avoid damaging the second waterproofing membrane layer 8;

[0067] (5) Construction of the waterproof concrete layer 10:

[0068] A. Steel mesh lashing: when lashing the plate steel, the eight-shaped buckle lashing method is used, and all the intersection points of the two steels are lashed; specifically, the steel mesh is a double-layer and double-directional steel (second steel mesh 15), the grid spacing is 150 mm, and the upper layer of steel is supported by a horse stool; the lower part is arranged in a plum blossom type with a 15 mm horseshoe-shaped cushion block at an interval of 600 mm, and the cold coil pipe is located between the double-layer steel mesh;

[0069] B. Construction of the cold coil pipe 13: the material of the cold coil pipe 13 is HDPE pipe, and no joint is allowed in the concrete; the cold coil pipe 13 is directly fixed on the steel mesh with a tie, and the fixed interval of the straight pipe section is 0.7-1.0 m, and the fixed interval of the curved pipe section is 0.2-0.3 m; the curved part of the coil pipe should not have a hard bending phenomenon, and the bending radius should be not less than 8 times the outer diameter of the pipe;

[0070] C. Pressure test of the cold coil pipe 13: the cold coil pipe 13 is subjected to a water pressure test, the test pressure is 1.35 MPa, and the pressure is stabilized for 1 h before the next step of concrete pouring is performed; the cold coil pipe 13 is under pressure during pouring, and the pressure is prohibited to be released before the concrete is finally set;

[0071] D, concrete pouring: when pouring concrete, pour from bottom to top along the length of the ski slope, control the pouring width within 5 meters each time, form several construction blocks along the length of the ski slope, and perform the segmented pouring task in sequence; for example: the transverse width of the slope is 30 meters, the transverse width of each pouring is 30 meters, the length along the ski slope direction is 5 meters, a construction block of 30m*5m is formed, and the same size construction block is continuously poured upwards along the ski slope direction before the initial setting of the concrete in each construction block, the large-scale pouring is controlled within 50-60 meters along the slope direction each time, the elevation block is set every 3 meters along the transverse direction of the ski slope in each construction block, starting from the low end of the construction block, pouring from low to high in the construction block is performed gradually: first spread the concrete, then use a flat vibrator to vibrate several times from the low end to the high end of the construction block, each time the vibrating length is 5 meters, finally manual troweling is performed, the pouring height is controlled according to the elevation block during the pouring process, and the surface flatness is controlled within 5mm; twice troweling is performed before the final setting of the concrete, and the surface is roughened to increase the friction of the contact surface with the snow layer, and form a waterproof concrete layer 10.

[0072] In the above steps (2) and (5), the temperature sensor is installed while pouring the concrete, so as to monitor the temperature of the antifreezing concrete layer 3 and the waterproof concrete layer 10.

[0073] The indoor ski slope construction process has clear procedures and clear levels, can prevent uneven pouring of concrete, has high flatness after construction, can not only keep the snow slope warm, but also control the temperature, prevent condensation of the lower floor, and is suitable for more occasions.

[0074] The application is limited by the claims. However, based on this, those skilled in the art can make various obvious changes or modifications, which should be within the main spirit and protection scope of the application.

Claims

1. A construction process of an indoor ski slope, the slope of which is 7-11°, characterized in that: (1) the first waterproofing membrane layer construction: A. floor base treatment: make the floor base surface solid, flat, clean, dry, and free of sharp protrusions, all holes are filled with cement mortar, and the honeycomb defects are repaired by laying a membrane additional layer; B. the first waterproofing membrane layer construction: according to the length of the construction section and the specifications of the first waterproofing membrane, a reference line is drawn, and the first waterproofing membrane is laid from the low to the high of the ski slope, the length direction of the first waterproofing membrane is overlapped by not less than 80mm; after the first waterproofing membrane is laid, the rubber asphalt adhesive is used to bond and seal the end; C. closed water test: after the waterproofing construction is completed, the slope waterproofing is tested for 24 hours, and after the test is qualified, the 20mm thick mortar protection layer construction is carried out; (2) the anti-freezing concrete layer construction: A. steel mesh binding: when binding the steel bars, use the eight-shaped buckle binding method, and all the intersection points of two steel bars are bound; B. hot coil construction: the hot coil is directly fixed on the steel mesh by using a strap, the fixed interval of the straight pipe section is 0.7-1.0m, and the fixed interval of the curved pipe section is 0.2-0.3m; C. hot coil pressure test: the hot coil is subjected to a water pressure test, the test pressure is 1.35MPa, and the pressure is stabilized for 1h, and after the test is qualified, the next step of concrete pouring is carried out; D. concrete pouring: when pouring the concrete, it is poured from the bottom to the top along the length direction of the ski slope, the pouring width is controlled within 5m each time, a plurality of construction blocks are formed along the length direction of the ski slope, and the segmented pouring task is carried out in sequence; in each construction block, the elevation block is set at intervals of 3m along the transverse direction of the ski slope, starting from the low end of the construction block, the concrete is poured to the high end of the construction block gradually: the concrete is first spread, then the flat vibrator is used to vibrate from the low end to the high end of the construction block for several times, the length of each vibration is 5m, and finally the concrete is manually smoothed, the pouring height is controlled according to the elevation block during the pouring process, and the flatness of the surface layer is controlled within 5mm; (3) the moisture-proof insulation layer construction: A. the first moisture-proof layer is laid on the top surface of the anti-freezing concrete layer, the overlapping width of the membrane is not less than 80mm during laying, the longitudinal joints are staggered by more than 1m, and the joints are compacted and fully bonded; B. the insulation board is layered on the top surface of the first moisture-proof layer, the upper and lower joint is staggered by more than 500mm, the surface of the insulation board is flat, the contact between the layers is tight without air pocket, and the insulation layer is formed; C. the second moisture-proof layer is laid on the top surface of the insulation layer, and the laying method is the same as that of the first moisture-proof layer; D. the cement mortar leveling layer construction is carried out on the top surface of the second moisture-proof layer, and the thickness of the cement mortar leveling layer is 30mm; (4) the second waterproofing membrane layer construction: A. the membrane additional layer is laid on the top surface of the cement mortar leveling layer; B. the second waterproofing membrane layer construction: according to the length of the construction section and the specifications of the second waterproofing membrane, a reference line is drawn, and the second waterproofing membrane is laid from the low to the high of the ski slope, the length direction of the second waterproofing membrane is overlapped by not less than 80mm; after the second waterproofing membrane is laid, the rubber asphalt adhesive is used to bond and seal the end. C. Closed water test: after the waterproof construction is completed, the slope waterproof is tested for 24 hours, and the 20mm thick cement mortar protective layer construction is carried out after the test is qualified; (5) Waterproof concrete layer construction: A. Steel mesh lashing: when lashing the steel bars, use the eight-shaped buckle lashing method, and all intersections of two steel bars are lashed; B. Cold coil construction: the cold coil is directly fixed on the steel mesh by using the binding tape, the fixed interval of the straight pipe section is 0.7-1.0m, and the fixed interval of the bending pipe section is 0.2-0.3m; C. Cold coil pressure test: the cold coil is subjected to the water pressure test, the test pressure is 1.35MPa, and the pressure is stabilized for 1h, and the next step of concrete pouring is carried out after the test is qualified; D. Concrete pouring: when the concrete is poured, it is poured from bottom to top along the length direction of the ski slope, the pouring width is controlled within 5m each time, a plurality of construction blocks are formed along the length direction of the ski slope, and the segmented pouring task is sequentially carried out; in each construction block, the elevation block is arranged at intervals of 3m along the transverse direction of the ski slope, the pouring is started from the low end of the construction block, and the pouring is carried out towards the high end of the construction block; first, the concrete is leveled, then the flat vibrator is used to vibrate from the low end to the high end of the construction block for several times, the length of each vibration is 5m, and finally manual leveling is carried out; the pouring height is controlled according to the elevation block during the pouring process, and the flatness of the surface is controlled within 5mm; twice leveling is carried out before the concrete is finally set, and the surface is roughened.

2. A process for constructing an indoor ski slope according to claim 1, characterized in that: In the step (1): In the floor base treatment, the sun and the shadow corners are made into circular arc shapes, the shadow corner is made into D≥50mm, and the sun corner is made into D≥10mm; In the first waterproof roll material layer construction, the first waterproof roll material is pressed by using a pressing roller when being laid, the overlapping edges of the first waterproof roll material are compactly pressed and firmly adhered, the above operation is repeated until the laying operation is completed.

3. The indoor ski slope construction process according to claim 1, characterized in that: In the step (2): In the steel mesh lashing, the steel mesh is a single-layer double-directional steel bar, and the grid interval is 150mm; the lower part is provided with 15mm-thick horseshoe-shaped cushion blocks at intervals of 600mm and in a plum blossom type; In the hot coil construction, the material of the hot coil is an HDPE pipe, and the bending radius of the bending part of the hot coil is not less than 8 times of the outer diameter of the pipe; In the concrete pouring, the hot coil is under pressure during the pouring, and the pressure is not released before the concrete is finally set.

4. The process for constructing an indoor ski slope according to claim 1, characterized in that: In the step (3), the materials of the first moisture-proof layer and the second moisture-proof layer are polyethylene plastic films with a thickness of 0.2mm; the sun and the shadow corners at the wall corners and the pipe trench edges are made into circular arcs with a radius of not less than 50mm, and an additional layer is arranged at the corners before laying, and the width of the additional layer is not less than 300mm.

5. The process for constructing an indoor ski slope according to claim 1, characterized in that: In the step (4), in the second waterproof roll material layer construction, the second waterproof roll material is pressed by using a pressing roller when being laid, the overlapping edges of the second waterproof roll material are compactly pressed and firmly adhered, the above operation is repeated until the laying operation is completed.

6. The indoor ski slope construction process according to claim 1, characterized in that: In the step (5): In the steel mesh lashing, the steel mesh is a double-layer double-directional steel bar, and the grid interval is 150mm; the lower part is provided with 15mm-thick horseshoe-shaped cushion blocks at intervals of 600mm and in a plum blossom type; the cold coil is located between the double-layer steel meshes, and a horse cushion steel bar is arranged between the double-layer steel meshes; In the construction of the cold pipe, the cold pipe material is HDPE pipe, and the bending radius of the cold pipe bending part is not less than 8 times of the outer diameter of the pipe; In the concrete pouring, the cold pipe is under pressure during pouring, and the pressure is not released before the final setting of the concrete.

7. The indoor ski slope construction process according to claim 1, characterized in that: In the steps (2) and (5), the temperature sensor is installed simultaneously with the concrete pouring.

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