Reinforcing construction structure for blasting loose rock stratum

Abstract

The utility model discloses a reinforcing construction structure for a blasting loosening rock stratum. The reinforcing construction structure comprises a base layer reinforcing body and an upper layer reinforcing body which are attached to the blasting loosening rock stratum. The base layer reinforcing body is fixed in the horizontal step surface of the side slope, so that the upper layer reinforcing body can be poured and solidified by taking the base layer reinforcing body as a stress foundation to reinforce and protect a blasting loose rock stratum of the side slope, the firmness of reinforcing and protecting the side slope is enhanced, and the problem that ground anchors are not easily driven into the blasting loose side slope to provide stress for an anchor net is solved; the problem of poor firmness of reinforcing and protecting the side slope due to concrete spraying of the anchor net is solved.

Description

Technical Field

[0001] The utility model relates to a reinforcement construction structure for blasting loosened rock layers, belonging to the technical field of building construction. Background Art

[0002] When constructing power stations and other facilities in mountainous terrain, the rocky mountain must be loosened by blasting, and then excavated by engineering machinery. After the mountain is blasted, the mountain slopes that do not need to be excavated will also become loose due to the impact of the blasting vibration, and reinforcement is required at this time.

[0003] The current technology for reinforcing slopes in blasting environments is disclosed in Chinese Patent Publication No. CN110593265A, which uses a safety net installed and an anchor net spraying combined support method to reinforce the excavated slope. Although anchor net spraying concrete can reinforce the slope, the anchor net needs a stress-bearing anchor point for installation, and it is not easy to drive anchor nails into the slope loosened by blasting to provide stress for the anchor net, so there is a problem that the anchor net spraying concrete has poor firmness in reinforcing the slope. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a reinforcement construction structure for blasting loosened rock formations.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a reinforcement construction structure for blasting loosened rock formations, comprising:

[0007] A reinforced construction structure in which a base reinforcement body and an upper reinforcement body are attached to the rock strata loosened by blasting.

[0008] include:

[0009] Blasting loosened rock formations on the slope;

[0010] The base reinforcement body is fixedly installed on the horizontal step surface of the slope during construction, and the upper reinforcement body is on the base reinforcement body. The base reinforcement body and the upper reinforcement body are attached to the blasting loosened rock layer;

[0011] The base reinforcement body has an upper layer of tensile steel bars, and the upper layer of tensile steel bars extend into the upper layer of reinforcement body;

[0012] An upper steel formwork is installed outside the upper reinforcement body, and inclined steel bars in an inclined state are welded and fixed to the upper tension steel bars. The inclined steel bars penetrate the upper steel formwork and are screwed and fixed with nuts to tightly press the upper steel formwork.

[0013] The upper reinforcement body is pre-embedded with overlapping tension steel bars which play the same role as the upper tension steel bars.

[0014] The base reinforcement body and the upper reinforcement body are fixedly connected by gluten.

[0015] The nut pressure-bearing back plate is tightly attached to the upper steel template.

[0016] The beneficial effects of the utility model are as follows: the base reinforcement body is fixed in the horizontal step surface of the slope, so that the upper reinforcement body can be poured and solidified with the base reinforcement body as the force-bearing foundation to reinforce and protect the blasting loosened rock layer of the slope, thereby enhancing the firmness of the slope reinforcement and protection, and solving the problem that it is difficult to drive anchor nails into the slope loosened by blasting to provide force for the anchor net, and there is a poor firmness of the anchor net sprayed concrete for the slope reinforcement and protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view cross-sectional schematic diagram of the base steel formwork and the upper steel formwork of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the base steel formwork and the upper steel formwork of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the utility model for performing step 1, base layer pouring;

[0020] Figure 4 This is a schematic diagram of the structure of the utility model for performing the upper layer pouring in step 2;

[0021] In the figure: 1-horizontal step surface of the slope; 2-support member; 3-base steel formwork; 31-upper steel formwork; 4-rock layer loosened by blasting; 5-base reinforcement body; 51-upper tensile steel bars; 52-oblique tension steel bars; 53-upper reinforcement body; 54-lap tensile steel bars; 6-nuts; 61-load-bearing back plate. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0023] like Figures 1 to 4 shown.

[0024] The present application discloses a method for reinforcing a blast-loose rock formation, comprising:

[0025] Step 1: Pouring the base: Install support members 2 on the horizontal step surface 1 of the slope to support the base steel formwork 3. There is a gap between the base steel formwork 3 and the blasting loosened rock layer 4 for installing the ribs to pour concrete to form a base reinforcement body 5. The upper tensile steel bars 51 are pre-embedded in the base reinforcement body 5. Figure 3 shown.

[0026] Step 2: Upper layer pouring: After the base reinforcement body 5 is solidified, the base steel template 3 is moved upward to form an upper steel template 31, such as Figure 4 As shown, the bottom edge of the upper steel formwork 31 is pressed on the top edge of the base reinforcement body 5, so that there is a gap between the upper steel formwork 31 and the blasting loosened rock layer 4 for installing the reinforced concrete to form the upper reinforcement body 53; the upper tension steel bar 51 is welded and fixed with an inclined tension steel bar 52 in an inclined tension state, the inclined tension steel bar 52 passes through the upper steel formwork 31 and is screwed with a nut 6, and the screwed nut 6 presses the load-bearing back plate 61 against the upper steel formwork 31, and the upper steel formwork 31 and the blasting loosened rock layer 4 are spaced to install the reinforced concrete to form the upper reinforcement body 53, and the upper reinforcement body 53 is pre-embedded with overlapping tension steel bars 54, and the overlapping tension steel bars 54 are used to play the role of the upper tension steel bars 51 when repeating step two.

[0027] The state of the upper steel formwork 31 is maintained by the screw-on nut 6 screwed on the inclined steel bar 52 pressing the load-bearing back plate 61 to tighten the force, ensuring that the upper steel formwork 31 obtains a load-bearing foundation; repeat step 2 to obtain multiple upper reinforcement bodies 53 to protect the rock layer 4 loosened by blasting.

[0028] The present application discloses a reinforcement construction structure for blasting loosened rock formations, comprising:

[0029] The blasting loosened rock layer at the slope 4;

[0030] A base reinforcement body 5 is fixedly installed on the horizontal step surface 1 of the slope, an upper reinforcement body 53 is provided on the base reinforcement body 5, the base reinforcement body 5 and the upper reinforcement body 53 are fixedly connected by ribs, and the base reinforcement body 5 and the upper reinforcement body 53 are attached to the blasting loosened rock layer 4;

[0031] The base reinforcement body 5 has an upper layer of tensile reinforcement bars 51, and the upper layer of tensile reinforcement bars 51 extend into the upper layer of reinforcement body 53;

[0032] An upper steel formwork 31 is installed on the outside of the upper reinforcement body 53, and inclined steel bars 52 in an inclined state are welded and fixed to the upper tension steel bars 51. The inclined steel bars 52 penetrate the upper steel formwork 31 and are screwed and fixed with nuts 6. The nuts 6 press the load-bearing back plate 61 tightly against the upper steel formwork 31.

[0033] The upper reinforcement body 53 is pre-embedded with overlapping tension steel bars 54 which play the same role as the upper tension steel bars 51 .

[0034] The base reinforcement body 5 is fixed in the horizontal step surface 1 of the slope, and a plurality of upper reinforcement bodies 53 overlapping each other are fixed on the base reinforcement body 5, so that the upper reinforcement body 53 can be poured and solidified with the base reinforcement body 5 as the force-bearing basis to reinforce and protect the blasting loosened rock layer 4 of the slope, thereby enhancing the firmness of the slope reinforcement and protection, and solving the problem that it is difficult to drive anchor nails into the slope loosened by blasting to provide force for the anchor net, and there is a poor firmness of the anchor net sprayed concrete for the slope reinforcement and protection.

Claims

1. A reinforcement construction structure for blasting loosened rock formations, characterized in that: A reinforcement construction structure in which a base reinforcement body (5) and an upper reinforcement body (53) are attached to the blasted loosened rock layer (4); The reinforcement construction structure comprises: Explosion loosened rock formations on the slope (4); A base reinforcement body (5) is constructed and fixedly installed on the horizontal step surface (1) of the slope, an upper reinforcement body (53) is arranged on the base reinforcement body (5), and the base reinforcement body (5) and the upper reinforcement body (53) are attached to the blasting loosened rock layer (4); The base reinforcement body (5) has an upper layer of tensile steel bars (51), and the upper layer of tensile steel bars (51) extend into the upper layer of reinforcement body (53); An upper steel formwork (31) is installed outside the upper reinforcement body (53), and an inclined steel bar (52) in an inclined state is welded and fixed on the upper tension steel bar (51). The inclined steel bar (52) passes through the upper steel formwork (31) and is screwed and fixed with a nut (6) to tightly press the upper steel formwork (31).

2. The reinforcement construction structure for blasting loosened rock formations as claimed in claim 1, characterized in that: The upper reinforcement body (53) is pre-embedded with overlapping tension steel bars (54) which play the same role as the upper tension steel bars (51).

3. The reinforcement construction structure for blasting loosened rock formations as claimed in claim 1, characterized in that: The base reinforcement body (5) and the upper reinforcement body (53) are fixedly connected by gluten.

4. The reinforcement construction structure for blasting loosened rock formations as claimed in claim 1, characterized in that: The nut (6) presses the stress-bearing back plate (61) tightly against the upper steel template (31).

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