A stone slope protection structure for preventing frost damage

Abstract

A stone slope protection structure for preventing frost damage, including an earth slope protection, wherein large stones are piled on the slope surface of the earth slope protection to form a large stone protection body on the earth slope protection surface, the large stone protection body is 3-5m higher than the ice cover along the slope direction, and the lower part extends to the foot of the water bottom slope, the foot of the large stone protection body is a large stone foundation, and the large stone protection body above the large stone foundation and at half the thickness of the ice cover is a large stone step, the large stone step has an angular external thorn shape, and the large stone step is above the stone slope protection body. When the ice cover of reservoirs and lakes in seasonally frozen areas squeezes the large stone protection body due to frost heave, the reaction force generated by the high-strength and hard large stone steps on the ice cover shears and splits the ice cover, and the thrust is weakened or eliminated; at the same time, the edges and corners of the large stone protection body split the ice cover, further weakening the frozen thrust of the ice cover. The growing thrust of the ice cover in winter is eliminated by the continuous shearing and splitting of the large stone protection body until the ice cover disappears due to the spring warm thawing.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and in particular relates to a stone slope protection structure capable of preventing frost damage. Background Art

[0002] At present, the slope protection projects near reservoirs and lakes in seasonally frozen areas in China are prone to frost damage such as slope collapse, soil erosion, and water pollution due to the ice thrust of the ice sheet in winter. The traditional treatment method is to carry out restoration measures such as dredging, sewage discharge, and refilling to consolidate the slope for collapse, soil erosion, and water pollution. The project volume is huge, water resources are wasted, and environmental pollution is caused, resulting in huge losses. Even if the slope protection is intact after the above maintenance, the above frost damage will recur after being pushed by the ice sheet again. Summary of the invention

[0003] In view of the problems of huge engineering workload, environmental pollution and serious waste of resources in the prior art, the present invention provides a stone slope protection structure that is resistant to frost damage, so as to protect the slope from being squeezed and damaged by ice cover.

[0004] To achieve the above-mentioned purpose, the present invention provides a stone slope protection structure for preventing frost damage, including an earth slope protection, characterized in that large stones are piled on the slope surface of the earth slope protection to form a large stone protection body on the earth slope protection surface, the large stone protection body is 3-5m higher than the ice cover along the slope direction, and the lower part extends to the foot of the water bottom slope, the foot of the large stone protection body is a large stone foundation, and the large stone protection body above the large stone foundation and at half the thickness of the ice cover is a large stone step, the large stone step has an angular thorn shape, and the stone slope protection body is above the large stone step.

[0005] Furthermore, small stones are selected to fill the gaps between the large stones in each part of the large stone protection body, and the large stone protection body is tightly packed to form a dense and solid whole, so as to evenly disperse the horizontal thrust of the ice sheet and reduce the pressure on the slope protection.

[0006] Furthermore, the diameter of the large stones is 0.6-0.8m, and the diameter of the small stones is 0.2-0.5m.

[0007] Positive effects of the present invention: When the ice cover of reservoirs and lakes in seasonally frozen areas squeezes the large stone guard due to frost heave, the reaction force generated by the high-strength and hard large stone steps on the ice cover shears and splits the ice cover, and the thrust is weakened or eliminated; at the same time, the edges and corners of the large stone guard surface split the ice cover, further weakening the frozen thrust of the ice cover. The growing thrust of the ice cover in winter is eliminated by the continuous shearing and splitting of the large stone guard until the ice cover disappears in the spring thaw. The stone slope protection structure that is protected from frost damage continues to play a role in the next winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the present invention.

[0009] In the figure: 1-soil slope protection; 2-large stone foundation; 3-large stone steps; 4-stone slope protection body; 5-ice cover; 6-broken ice. DETAILED DESCRIPTION

[0010] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0011] Reference Figure 1 The present invention discloses a stone slope protection structure for preventing frost damage, comprising a soil slope protection 1, wherein blocks of stone are piled on the slope surface of the soil slope protection 1 to form a large stone protection body on the slope protection surface, and small blocks of stone are selected to inlay and pile up the gaps between the large blocks of stone in each part of the large stone protection body, and the large blocks of stone have a diameter of 0.6-0.8m, and the small blocks have a diameter of 0.2-0.5m, so that the large blocks of stone protection body form a dense and solid whole, so as to evenly disperse the horizontal thrust of the ice cover 5 and reduce the pressure of the slope protection, and the large blocks of stone protection body are 3-5m higher than the ice cover along the slope surface direction of the soil slope protection 1, and the lower part extends to the bottom of the water slope of the soil slope protection 1. A large stone step 3 is piled on the slope protection surface at half the thickness of the ice cover 5, and the large stone step 3 is an angular and thorny body, and is piled in the shape of a step. A large stone foundation 2 is piled at the bottom of the water slope of the soil slope protection 1 to support the upper large stone step 3, and the stone slope protection body 4 is above the large stone step 3.

[0012] When winter comes, the growing thrust of the ice sheet 5 is eliminated and broken by the continuous shearing and splitting of the large stone guard 3, forming broken ice blocks 6 to protect the slope from being squeezed and damaged by the ice sheet.

[0013] The construction process of the present invention:

[0014] 1. Material selection and transportation: select large stones with a diameter of 0.6-0.8m and small stones with a diameter of 0.2-0.5m. Transport the stones to the slope protection operation surface for standby;

[0015] 2. Repair and compact the slope protection soil as the base of large stone protection;

[0016] 3. The construction of the large stone protection body should be carried out in a bottom-up order. First, build the large stone foundation at the bottom of the large stone protection body, then build the large stone steps, and finally build the stone slope protection body. When building the blocks, try to place them with the large surface facing downward, and choose small and medium-sized blocks of stones of the same size as the gaps between the large blocks. During the construction process, check the firmness of the built body at any time to avoid loosening. The blocks are placed in a steel cage and transported down the slope. Underwater operations require wearing diving suits, safety ropes, and full-time safety protection personnel for protection.

Claims

1. A stone slope protection structure for preventing frost damage, including soil slope protection, characterized in that: Large stones are piled up on the slope surface of the earth slope protection to form a large stone protection body on the earth slope protection surface. The large stone protection body is 3-5m higher than the ice cover along the slope direction, and the lower part extends to the foot of the water bottom slope. The foot of the large stone protection body is a large stone foundation, and the large stone protection body above the large stone foundation and at half the thickness of the ice cover is a large stone step. The large stone step has an angular thorn shape, and the large stone step is above the stone slope protection body. Small stones are selected to inlay and stack the gaps between the large stones in various parts of the large stone protection body, and they are tightly compacted to form a dense and solid whole for evenly dispersing the horizontal thrust of the ice cover and reducing the pressure on the slope protection. The large stones have a diameter of 0.6-0.8m, and the small stones have a diameter of 0.2-0.5m.

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