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CN-121992750-A - Natural stone drop structure and construction method thereof

CN121992750ACN 121992750 ACN121992750 ACN 121992750ACN-121992750-A

Abstract

The invention discloses a natural stone drop structure and a construction method thereof, and belongs to the field of landscape engineering. The method comprises the steps of paving a plain soil rammed layer, a gray soil layer, a plain concrete layer, a bentonite waterproof blanket layer, a reinforced concrete layer and a tiled natural stone layer in sequence from bottom to top, bonding and filling natural stones at a water drop position through fine stone concrete and impervious agents, arranging a water drain pipe at the bottom of the water drop natural stone, and arranging the fine stone concrete natural stone layer at the downstream of the water drop. The invention realizes excellent waterproof performance, structural stability and landscape effect through the synergistic effect of the multilayer structure, and the construction method is scientific and standard, and can be widely applied to garden water landscape engineering.

Inventors

  • SUN YUXUAN
  • ZHANG FANG
  • WANG PENG
  • WEN ZHENMING
  • ZHU XIAOJIE

Assignees

  • 中冶北方（大连）工程技术有限公司

Dates

Publication Date
20260508
Application Date
20260313

Claims (10)

  1. 1. A natural stone drop structure is characterized in that a plain soil ramming layer (1), a gray soil layer (2), a plain concrete layer (3), a bentonite waterproof blanket layer (4), a reinforced concrete layer (5) and a tiled natural stone layer (6) are paved in sequence from bottom to top, natural stones (7) at the drop are bonded and encapsulated through fine stone concrete and impervious agents, a drain pipe (8) is arranged at the bottom of the natural stones (7), and a fine stone concrete natural stone layer (9) is arranged at the downstream of the drop.
  2. 2. The natural stone drop structure according to claim 1, wherein the compaction coefficient of the plain soil compacting layer (1) is not less than 0.95.
  3. 3. The natural stone drop structure according to claim 1, wherein the volume ratio of lime to soil in the lime-soil layer (2) is 3:7, and the thickness of the lime-soil layer (2) is not less than 300mm.
  4. 4. The natural stone drop structure according to claim 1, wherein the overlap width of the bentonite waterproof blanket layer (4) is not less than 300mm.
  5. 5. Natural stone drop structure according to claim 1, characterized in that the mesh of reinforcement in the reinforced concrete layer (5) has a two-way gauge Φ6@200mm.
  6. 6. The natural stone drop structure according to claim 1, wherein the drain pipe (8) is a DN50PVC pipe with a spacing of 1500mm or less.
  7. 7. The construction method of the natural stone drop structure is characterized by comprising the following steps of: s1, site leveling and plain soil tamping; s2, paving a layer of 300mm thick 3:7 compacting a gray soil layer; S3, pouring a C10 plain concrete cushion layer with the thickness of 100 mm; s4, paving a bentonite waterproof blanket with the thickness of 7 mm; s5, binding reinforcing mesh sheets and pouring C25 reinforced concrete with the thickness of 150 mm; s6, paving natural stones with the grain diameters of 150-250 mm; S7, adopting C25 fine stone concrete and impervious agent to bond and fill natural stone at the water drop position; s8, installing a drain pipe at the bottom of the natural falling water stone; s9, casting a C25 fine stone concrete natural stone layer with the thickness of 50mm at the downstream of the drop.
  8. 8. The construction method according to claim 7, wherein the plain soil compaction is performed by using a 20t vibratory roller, and the number of compaction passes is not less than 6.
  9. 9. The method according to claim 7, wherein the water content is controlled to be within + -2% of the optimum water content when the soil layer is constructed.
  10. 10. The construction method according to claim 7, wherein the waterproof blanket is laid with lap sealing using special sodium bentonite particles.

Description

Natural stone drop structure and construction method thereof Technical Field The invention belongs to the technical field of landscape engineering, and particularly relates to a natural stone drop structure and a construction method thereof. Background The traditional drop structure adopts concrete pouring or stone construction, and has the following technical defects: 1. the waterproof performance is insufficient, common concrete is easy to crack to cause leakage, and the joint of the grout stone is easy to be eroded by water flow; 2. The structure stability is poor, uneven sedimentation is easy to cause due to nonstandard foundation treatment, and stone bonding materials are easy to age and fall off; 3. the landscape effect is single, the artificial trace is obvious, and the flexible effect of natural mountain water is difficult to be presented; 4. the construction process is extensive, the material proportion is standard-free, the construction parameters depend on experience, and the quality control difficulty is high. Disclosure of Invention The natural stone drop structure is formed by paving a plain soil ramming layer, a gray soil layer, a plain concrete layer, a bentonite waterproof blanket layer, a reinforced concrete layer and a tiled natural stone layer in sequence from bottom to top, wherein natural stones at the drop are bonded and encapsulated through fine stone concrete and impervious agents, a drain pipe is arranged at the bottom of the natural stone, and a fine stone concrete natural stone layer is arranged at the downstream of the drop. Further, the compaction coefficient of the plain soil compacting layer is more than or equal to 0.95. Further, the volume ratio of lime to soil in the gray soil layer is 3:7, and the thickness of the gray soil layer is more than or equal to 300mm. Further, the overlap joint width of the bentonite waterproof blanket layer is more than or equal to 300mm. Further, the specification of the reinforced mesh in the reinforced concrete layer is phi 6@200mm bidirectional. Further, the drain pipe is a DN50PVC pipe, and the distance is less than or equal to 1500mm. A construction method of a natural stone drop structure comprises the following steps: s1, site leveling and plain soil tamping; s2, paving a layer of 300mm thick 3:7 compacting a gray soil layer; S3, pouring a C10 plain concrete cushion layer with the thickness of 100 mm; s4, paving a bentonite waterproof blanket with the thickness of 7 mm; s5, binding reinforcing mesh sheets and pouring C25 reinforced concrete with the thickness of 150 mm; s6, paving natural stones with the grain diameters of 150-250 mm; S7, adopting C25 fine stone concrete and impervious agent to bond and fill natural stone at the water drop position; s8, installing a drain pipe at the bottom of the natural falling water stone; s9, casting a C25 fine stone concrete natural stone layer with the thickness of 50mm at the downstream of the drop. Further, the plain soil is compacted by adopting a 20t vibratory roller, and the compaction pass number is more than or equal to 6. Further, the water content is controlled within the range of +/-2% of the optimal water content during construction of the gray soil layer. Furthermore, the waterproof blanket is laid by adopting special sodium bentonite particles for lap sealing. The invention has the beneficial effects that the following technical effects are realized through the cooperation of the multilayer structure and the standardized construction process: the waterproof performance is that the bentonite waterproof blanket layer and the concrete structure layer form a double waterproof system, and leakage is effectively prevented. The reinforced concrete layer and the natural stone layer form an integral stress structure, so that the water flow impact and the temperature stress are effectively resisted. Natural landscape effect, namely, a landscape effect of natural interests formed by tiling natural stone layers is harmonious and unified with garden environment. The construction science and the standard are standardized construction technology to ensure the quality control and the structural performance realization of each working procedure, and can be widely applied to garden water scenery engineering. Drawings Fig. 1 is a structural diagram of a natural stone drop structure and a construction method thereof according to the present invention. Wherein, the reference numerals are as follows: 1. the soil compacting layer, 2, the gray soil layer, 3, the plain concrete layer, 4, the bentonite waterproof blanket layer, 5, the reinforced concrete layer, 6, the tiled natural stone layer, 7, the natural stone, 8, the drain pipe, 9, the fine stone concrete natural stone layer. Detailed Description Example 1 In order to make the technical means adopted by the invention and achieve the purpose easy to understand, the invention is further described below with reference to the specific embodiments, and a natu