High and steep slope excavation auxiliary tool for preventing slag slipping along slope

Abstract

The utility model discloses a high and steep slope excavation auxiliary tool capable of preventing slag from slipping along the slope, which comprises a protective frame, the protective frame is an inverted V-shaped hollow frame, two inclined side surfaces of the protective frame are of hollow structures, and a plurality of clamping mechanisms are arranged on two sides of each inclined side surface. A grating baffle is arranged in each inclined side face through a plurality of clamping mechanisms, an extending blocking mechanism is arranged on the top of the protection frame, the protection frame protects the reserved slag blocking ridge, certain buffering is conducted, the slag blocking ridge is prevented from being damaged, the slag blocking height is increased through the extending blocking mechanism, and the slag blocking ridge is prevented from being damaged. And the slag blocking effect is improved under the condition that the height and the width of the slag blocking ridge are not changed.

Description

Technical Field

[0001] The utility model relates to the technical field of slope excavation, in particular to an auxiliary tool for high-steep slope excavation to prevent slag from sliding along the slope. Background Technique

[0002] During the construction of slopes for expressways, railways, construction access roads for hydropower stations, connecting roads between upper and lower reservoirs of pumped-storage projects, and ring reservoir roads in alpine valley areas, before the excavation of high-steep slopes, there are no site conditions to construct anti-sliding measures such as slag baffles and retaining walls. During excavation, it is inevitable that the earth and rock will slide down the slope to the valley bottom, damaging the slope vegetation outside the project occupied area. Moreover, due to terrain restrictions, it is difficult to clean up the earth and rock that have slid to the slope and the valley bottom, and it is also difficult to repair the damaged slope vegetation. In addition, this part of the sliding slag is washed away by rainwater during the rainy season, causing soil erosion.

[0003] Therefore, to solve the above problems, during the construction of roads and other projects in deep mountain valleys, slope excavation is usually carried out step by step from the surface to the inside and from the top to the bottom along the mountain. At the beginning, the side facing the river valley is not excavated, and a part of the mountain body is reserved to form a slag retaining dam to block the earth and rock excavated from the subsequent slope surface and prevent it from sliding to outside the construction area. The height and width of the slag retaining dam are determined according to the size of the excavation area, but it should not be too wide to increase the project volume. The slag retaining dam can also be formed into a permanent guardrail by pouring concrete and laying stones in the later stage.

[0004] However, the above method has the following problems in application:

[0005] 1. The reserved slag retaining dam is easily damaged after being impacted multiple times and loses the effect of preventing slag from sliding and retaining slag. Secondly, the damaged slag retaining dam cannot be prepared into a guardrail either;

[0006] 2. If the reserved slag retaining dam needs to increase the slag retaining height, it is inevitable to modify the width as well, which affects the slope excavation effect. Content of the Utility Model

[0007] The utility model provides an auxiliary tool for high-steep slope excavation to prevent slag from sliding along the slope, aiming to solve the problems that the reserved slag retaining dam in the process of high-steep slope excavation is easily damaged, and the adjustment of the slag retaining height is accompanied by the adjustment of the width of the reserved slag retaining dam, which affects the excavation effect.

[0008] To solve the above technical problems, the technical solution adopted by the utility model is:

[0009] An auxiliary tooling for high-steep slope excavation to prevent downhill slag flow, including a protection frame. The protection frame is an inverted "V"-shaped hollow frame. The two inclined sides of the protection frame are hollow structures. A number of clamping mechanisms are provided on both sides of each inclined side, and a grille baffle is provided in each inclined side through a number of clamping mechanisms. An extension blocking mechanism is provided at the top of the protection frame.

[0010] A fixing plate is provided on the opening side of the protection frame. The fixing plate forms a detachable fixed fit with the slope open space reserved for slope excavation through a number of fasteners, and the protection frame covers the slag retaining dam reserved for slope excavation.

[0011] The protection frame includes two oppositely arranged inverted "V"-shaped steel frames, which are connected by connecting steel frames. The inverted "V"-shaped steel frames and the connecting steel frames cooperate to form an inverted "V"-shaped hollow frame. The clamping mechanisms are arranged on the opposite sides of the two inverted "V"-shaped steel frames, and the extension blocking mechanism is arranged at the tips of the inverted "V"-shaped steel frames.

[0012] The extension blocking mechanism includes oppositely arranged extension rods, and the extension rods correspond to the inverted "V"-shaped steel frames one by one. The bottom of the extension rod forms a fixed fit with the tip of the corresponding inverted "V"-shaped steel frame, and an extension baffle is provided between the extension rods.

[0013] The extension rod is inclined on the side of the tip of the inverted "V"-shaped steel frame away from the fixing plate, and a support steel frame is provided between the lower side of the extension rod and the inverted "V"-shaped steel frame, and the support steel frames cooperate to form a reinforcing rib structure.

[0014] The extension baffle is parallel to the inclined side of the inverted "V"-shaped steel frame close to the fixing plate.

[0015] The clamping mechanisms are evenly distributed along the hypotenuse of the inverted "V"-shaped steel frame, and the clamping mechanisms in the same inclined side of the inverted "V"-shaped hollow frame are symmetric about the middle position of the inclined side.

[0016] The clamping mechanism includes a clamping block parallel to the inclined side of the inverted "V"-shaped hollow frame where it is located. One end of the clamping block is fixedly fitted with the corresponding side of the inverted "V"-shaped steel frame. The other end of the clamping block is provided with a clamping opening, and the clamping blocks on both sides of the clamping opening cooperate to form a clamping plate. The clamping plate forms a clamping fit through a clamping bolt.

[0017] The side edge of the grille baffle is movably embedded in the clamping opening. The screw rod of the clamping bolt penetrates through the clamping plate and the grille baffle to form a limiting fit, and the clamping plate forms a clamping fit with the grille baffle through the nut of the clamping bolt.

[0018] The beneficial effects of the present utility model:

[0019] 1. The utility model protects the reserved slag retaining sill through a protection frame and a grid baffle, which is convenient for fixed installation, has a shape similar to that of the slag retaining sill, is directly covered on the slag retaining sill, requires a small reserved position, has a good protection effect, and avoids damage to the reserved slag retaining sill;

[0020] 2. Through the extension blocking mechanism of the utility model, without adjusting the designed width of the slag retaining sill, the slag retaining height can be increased, and the slag retaining gravel slides down along the extension baffle, which is convenient for application and ensures the slag retaining effect. The slag retaining strength and protection strength are ensured through the fixing plate and the fasteners. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional schematic diagram of one side of the utility model;

[0022] Figure 2 is a three-dimensional schematic diagram of the other side of the utility model;

[0023] Figure 3 is an enlarged schematic diagram of the clamping mechanism of the utility model during the installation of the grid baffle;

[0024] Figure 4 is an enlarged schematic diagram of the clamping mechanism of the utility model during the disassembly of the grid baffle;

[0025] Figure 5 is a three-dimensional schematic diagram of one side of the utility model installed on the slag retaining sill;

[0026] Figure 6 is a three-dimensional schematic diagram of the other side of the utility model installed on the slag retaining sill;

[0027] In the figure: 1. Protection frame; 101. Inverted V-shaped steel frame; 102. Connecting steel frame;

[0028] 2. Extension blocking mechanism; 201. Extension rod; 202. Extension baffle; 203. Support steel frame;

[0029] 3. Clamping mechanism; 301. Clamping block; 302. Clamping opening; 303. Clamping plate; 304. Clamping bolt;

[0030] 4. Grid baffle; 5. Fixing plate; 6. Fastener; 7. Slag retaining sill; 9. Slope open space. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] As follows, the embodiments will be further described with reference to the drawings.

[0032] As Figures 1 to 6As shown in the figure, as a preferred Embodiment 1, an auxiliary tooling for high-steep slope excavation to prevent slag from sliding down the slope includes a protection frame 1. The protection frame 1 is an inverted "V" - shaped hollow frame. The two inclined sides of the protection frame 1 are hollow structures. A number of clamping mechanisms 3 are provided on both sides of each inclined side, and a grid baffle 4 is arranged in each inclined side through a number of clamping mechanisms 3. An extension blocking mechanism 2 is provided at the top of the protection frame 1.

[0033] A fixing plate 5 is provided on the opening side of the protection frame 1. The fixing plate 5 forms a detachable fixed fit with the reserved slope open space 9 for slope excavation through a number of fasteners 6. The protection frame 1 covers the slag retaining dam 7 reserved for slope excavation.

[0034] In Embodiment 1, the reserved slag retaining dam 7 is covered by the protection frame 1, and the slag retaining dam 7 is protected by the protection frame 1 and the grid baffle 4 to prevent the slag retaining dam 7 from being damaged after multiple impacts. At the same time, the installation space is saved, and not too many reserved positions are required. The protection frame 1 can be fixed on the reserved slope open space 9 through the fixing plate 5 and the fasteners 6 to ensure the strength of protection and slag retention. And through the extension blocking mechanism 2 at the top, the height of slag retention can be increased without changing the designed width of the slag retaining dam 7, which is convenient for excavation.

[0035] As a preferred Embodiment 2, the protection frame 1 includes two oppositely arranged inverted V - shaped steel frames 101. The two inverted V - shaped steel frames 101 are connected by a connecting steel frame 102, and the inverted V - shaped steel frame 101 and the connecting steel frame 102 cooperate to form an inverted "V" - shaped hollow frame. The clamping mechanism 3 is arranged on the opposite side of the two inverted V - shaped steel frames 101, and the extension blocking mechanism 2 is arranged at the tip of the inverted V - shaped steel frame 101. This ensures the strength of the protection frame 1 and makes its shape approximate to that of the slag retaining dam 7.

[0036] As a preferred Embodiment 3, according to the specific shape of the slag retaining dam 7, the connecting steel frame 102 can be straight - line shaped or curved. In specific use, multiple protection frames 1 can be installed on the same slag retaining dam 7 for joint protection.

[0037] As a preferred Embodiment 4, the extension blocking mechanism 2 includes oppositely arranged extension rods 201, and the extension rods 201 correspond to the inverted V - shaped steel frames 101 one by one. The bottom of the extension rod 201 forms a fixed fit with the tip of the corresponding inverted V - shaped steel frame 101, and an extension baffle 202 is arranged between the extension rods 201. This ensures the extension effect.

[0038] As a preferred embodiment 5, the extension rod 201 is inclined at the tip of the inverted V-shaped steel frame 101 away from the fixing plate 5, and a support steel frame 203 is provided between the lower side of the extension rod 201 and the inverted V-shaped steel frame 101, and the support steel frames 203 cooperate to form a reinforcing rib structure to ensure the stability of the extension.

[0039] As a preferred embodiment 6, the extension baffle 202 is parallel to the inclined side of the inverted V-shaped steel frame 101 close to the fixing plate 5, which is convenient for the slag to slide directly.

[0040] As a preferred embodiment 7, the clamping mechanisms 3 are equally spaced along the hypotenuse of the inverted V-shaped steel frame 101, and the clamping mechanisms 3 on the same inclined side of the inverted "V" - shaped hollow frame are symmetric about the middle position of the inclined side to ensure the stability of the clamping force.

[0041] As a preferred embodiment 8, the clamping mechanism 3 includes a clamping block 301 parallel to the inclined side of the inverted "V" - shaped hollow frame where it is located. One end of the clamping block 301 is fixedly fitted with the corresponding side of the inverted V-shaped steel frame 101. The other end of the clamping block 301 is provided with a clamping opening 302, and the clamping blocks 301 on both sides of the clamping opening 302 cooperate to form a clamping plate 303, and the clamping plate 303 forms a clamping fit through a clamping bolt 304.

[0042] The side of the grid baffle 4 is movably embedded in the clamping opening 302. The screw rod of the clamping bolt 304 penetrates through the clamping plate 303 and the grid baffle 4 to form a limiting fit, and the clamping plate 303 forms a clamping fit with the grid baffle 4 through the nut of the clamping bolt 304 to ensure the clamping strength.

[0043] As a preferred embodiment 9, the grid baffle 4 can also be replaced by a rigid geotextile net, which plays a role in buffering and protecting the slag retaining dam 7.

[0044] As a preferred embodiment 10, the fastener 6 can be an expansion bolt.

[0045] The working principle of the present utility model:

[0046] The present utility model covers the reserved slag retaining dam 7 with the protection frame 1, and protects the slag retaining dam 7 through the protection frame 1 and the grid baffle 4 to prevent the slag retaining dam 7 from being damaged after multiple impacts. At the same time, it saves installation space and does not require too many reserved positions. The protection frame 1 can be fixed on the reserved slope open space 9 through the fixing plate 5 and the fastener 6 to ensure the strength of protection and slag retention. And through the top extension blocking mechanism 2, the height of slag retention can be increased without changing the designed width of the slag retaining dam 7, which is convenient for excavation and use.

Claims

1. An auxiliary tool for excavating a high and steep slope to prevent debris from sliding down the slope, characterized in that: The protective frame (1) comprises an inverted "V"-shaped hollow frame, the two oblique side surfaces of the protective frame (1) are hollow structures, a plurality of clamping mechanisms (3) are provided on both sides of each oblique side surface, and a grille baffle (4) is provided in each oblique side surface via the plurality of clamping mechanisms (3), and an extension blocking mechanism (2) is provided on the top of the protective frame (1).

2. The auxiliary tool for excavating a high and steep slope to prevent debris from sliding down the slope according to claim 1, characterized in that: A fixing plate (5) is provided on one side of the opening of the protection frame (1), and the fixing plate (5) is detachably fixedly matched with a side slope space (9) reserved for side slope excavation through a plurality of fasteners (6), and the protection frame (1) is covered on the slag retaining ridge (7) reserved for side slope excavation.

3. The auxiliary tool for excavating a high and steep slope to prevent debris from sliding down the slope according to claim 2, characterized in that: The protection frame (1) comprises two inverted V-shaped steel frames (101) arranged opposite to each other, the two inverted V-shaped steel frames (101) being connected via a connecting steel frame (102), and the inverted V-shaped steel frames (101) and the connecting steel frames (102) cooperate to form an inverted "V"-shaped hollow frame, the clamping mechanism (3) being arranged on opposite sides of the two inverted V-shaped steel frames (101), and the extension blocking mechanism (2) being arranged on the tip of the inverted V-shaped steel frame (101).

4. The auxiliary tool for excavating a high and steep slope to prevent debris from sliding down the slope according to claim 3, characterized in that: The extension blocking mechanism (2) comprises extension rods (201) arranged opposite to each other, wherein the extension rods (201) correspond to the inverted V-shaped steel frames (101) one by one, the bottom of the extension rod (201) forms a fixed fit with the tip of the corresponding inverted V-shaped steel frame (101), and an extension baffle (202) is provided between the extension rods (201).

5. The auxiliary tool for excavating a high and steep slope to prevent debris from sliding down the slope according to claim 4, characterized in that: The extension rod (201) is obliquely located at the tip of the inverted V-shaped steel frame (101) away from the fixed plate (5), and a support steel frame (203) is provided between the lower side of the extension rod (201) and the inverted V-shaped steel frame (101), and the support steel frame (203) cooperates to form a reinforcing rib structure.

6. The auxiliary tool for excavating a high and steep slope to prevent debris from sliding down the slope according to claim 5, characterized in that: The extended baffle (202) is parallel to the inclined edge of the inverted V-shaped steel frame (101) close to the fixed plate (5).

7. The auxiliary tool for excavating a high and steep slope to prevent debris from sliding down the slope according to claim 3, characterized in that: The clamping mechanisms (3) are distributed at equal intervals along the oblique side of the inverted V-shaped steel frame (101), and the clamping mechanisms (3) in the same oblique side surface of the inverted "V"-shaped hollow frame are symmetrical about the middle position of the oblique side surface.

8. The auxiliary tool for excavating a high and steep slope to prevent debris from sliding down the slope according to claim 7, characterized in that: The clamping mechanism (3) comprises a clamping block (301) parallel to the oblique side surface of the inverted "V"-shaped hollow frame, one end of the clamping block (301) is fixedly matched with the corresponding side of the inverted V-shaped steel frame (101), the other end of the clamping block (301) is provided with a clamping opening (302), and the clamping blocks (301) on both sides of the clamping opening (302) cooperate to form a clamping plate (303), and the clamping plate (303) is clamped by a clamping bolt (304).

9. The auxiliary tool for excavating a high and steep slope to prevent debris from sliding down the slope according to claim 8, characterized in that: The side of the grille baffle (4) is movably embedded in the clamping opening (302), the screw of the clamping bolt (304) penetrates the clamping plate (303) and the grille baffle (4) to form a limited fit, and the clamping plate (303) forms a clamping fit with the grille baffle (4) through the nut of the clamping bolt (304).

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