Construction method of high and steep loose slope scaffold erection

Abstract

The application provides a construction method of high and steep loose slope scaffold erection, which comprises the following steps: slope surface treatment, cushion treatment, scaffold erection, stand rod bottom treatment, slope inclined rod arrangement and wall connecting member arrangement; the wall connecting member is arranged in two parts and three spans, the wall connecting member is a threaded steel bar, an anchor rod hole is arranged on the slope surface, a sediment section is reserved in the anchor rod hole, a prefabricated auxiliary anchor rod is inserted into the hole, a limiting tripod support is welded on the auxiliary anchor rod, anchor mortar is injected, after the anchor solidifies, the auxiliary anchor rod is connected with an adjusting rod through screw thread, the adjusting rod is connected with an extended anchor rod through screw thread, the extended anchor rod is connected with a connecting steel pipe through single-side welding, finally, a short steel pipe is connected with the node of the scaffold frame body through a rotating fastener. The wall connecting member is formed by welding the anchor rod and the scaffold steel pipe, which can effectively connect the frame body and improve the overturning resistance of the frame body, and the length of the wall connecting member can be adjusted by the adjusting rod, so as to be suitable for the uneven condition of the slope surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slope scaffold erection, and particularly relates to a construction method for high and steep loose slope scaffold erection. BACKGROUND

[0002] The slope stability of infrastructure is mainly achieved by adopting the anchor rod lattice mode, and the anchor rod lattice must be erected to erect the scaffold platform. The existing slope scaffold erection mode is mainly double-row frame, and the slope to be erected is subjected to the process of mechanical slope brushing. After the slope brushing, the slope surface is relatively regular, the slope is relatively gentle and uniform, and the erection can be carried out in layers following the slope level. However, there are some high and steep loose slopes, which have the following characteristics: (1) the slope is mainly the damaged treatment of existing slope, and the slope shape cannot be changed without slope brushing; (2) the slope is high and steep, the height can reach more than 100m, and the steepness can reach 80°; (3) the slope is relatively loose, and there is a risk of collapse. Therefore, when the existing slope scaffold erection mode is used to erect the high and steep loose slope, there will be a large reaction force during the super-long anchor rod drilling construction, and the stability of the scaffold cannot be guaranteed. SUMMARY

[0003] In view of the deficiencies in the prior art, the present application provides a construction method for high and steep loose slope scaffold erection, to solve the technical problem that when the existing slope scaffold erection mode is used to erect the high and steep loose slope, there will be a large reaction force during the super-long anchor rod drilling construction, and the stability of the scaffold cannot be guaranteed.

[0004] The present application provides a construction method for high and steep loose slope scaffold erection, comprising,

[0005] S1, slope surface treatment:

[0006] The artificial danger removal method is used to clean the dangerous stones on the slope surface, and then the entire slope surface is subjected to concrete simple spraying treatment to ensure the stability of the slope surface;

[0007] S2, cushion treatment:

[0008] The step-by-step pouring method is adopted, the cushion is made of hardened concrete, and then the vertical rod is arranged on the cushion plate to ensure the levelness of the cushion and the stability of the vertical rod;

[0009] S3, scaffold erection:

[0010] The scaffold is erected in the four-row frame mode, and is folded from the outside to the inside according to the actual slope shape, and is erected in layers, and the horizontal rod is arranged on the slope;

[0011] S4, vertical rod bottom treatment:

[0012] According to the degree of space of the slope surface, two ways are adopted:

[0013] One is that the slope is gentle and the space is sufficient, the slope is directly chiseled flat by artificial, and the full contact of the vertical rod with the slope surface is ensured;

[0014] One is that the slope is steep, and the area contact of the bottom of the vertical rod with the slope surface is not enough, the L-shaped steel bar is punched into the slope soil, the vertical rod is sleeved on the steel bar, and the sand mortar is poured;

[0015] S5, continuous slope inclined rod arrangement:

[0016] The continuous slope inclined rod is arranged along the slope surface, and the continuous slope inclined rod is arranged on the vertical rod and parallel to the slope surface;

[0017] S6, continuous wall piece arrangement:

[0018] The continuous wall piece is arranged in two parts and three spans, the continuous wall piece is a threaded steel bar (auxiliary anchor rod), an anchor rod hole is punched in the slope surface, a precast auxiliary anchor rod is inserted into the hole, a limiting three-legged support is welded on the auxiliary anchor rod, and then anchor mortar is poured, after the anchor solidification, the auxiliary anchor rod is connected with the adjusting rod through thread, the adjusting rod is connected with the lengthened anchor rod through thread, the lengthened anchor rod is connected with the connecting steel pipe through single-sided welding, and finally the short steel pipe is connected with the node of the scaffold frame body through the rotating fastener;

[0019] S7, drilling machine construction:

[0020] (1) Drilling machine position

[0021] Before drilling, a longitudinal horizontal rod is temporarily added at the top or tail of the drilling machine according to the drilling machine station, and the straight angle fastener is connected with the vertical rods on both sides of the span to be firm;

[0022] (2) Continuous wall piece

[0023] When constructing the upper anchor rod, the inclined steel pipe is connected with the steel pipe at the lower row of continuous wall pieces, and the inclined steel pipe is arranged with the anchor rod drilling machine;

[0024] S8, operation layer and inclined path:

[0025] The operation layer is fully paved with scaffold boards, the scaffold boards are arranged on three horizontal rods, the scaffold boards are laid in butt joint, and protective railings and high guard boards are arranged on the outer side of the scaffold for the operation layer, the railings and the guard boards are arranged on the inner side of the outer vertical rod;

[0026] According to the construction progress on site, multiple zigzag inclined paths are arranged at intervals, the inclined paths are fully paved with scaffold boards, platforms are arranged at the turning points, protective railings and guard boards are installed on both sides of the inclined paths and the periphery of the platforms, the upper and lower passages are fixed, the connecting wall rods and unloading devices are arranged according to the requirements, red warning lights are installed at the turning points of the passages.

[0027] Furthermore, in S1, the entire slope surface is treated with 1-5cm of C25 concrete spraying.

[0028] Furthermore, in S2, the subbase is made of C20 hardened concrete with a thickness of not less than 10cm, a single step span of not less than 2 spans, and a single step height of 5-15cm; the base plate is made of wood with a length of not less than 2 spans, a thickness of not less than 50mm, and a width of not less than 200mm.

[0029] Furthermore, in S3, the horizontal spacing of the scaffold is (0.5-1.5)m + (0.5-1.5)m + (0.5-1.5)m, the horizontal bars rest on the slope, and the distance between the scaffold and the slope is 0.1-0.5m; the longitudinal spacing is 1-2m, and the step distance is 1-2m.

[0030] Furthermore, in S5, the slope bracing is 15-25cm from the bottom of the upright.

[0031] Furthermore, in S6, the wall tie is a φ20-30 threaded steel bar, and an anchor bolt hole of φ40-50mm is drilled on the slope. The anchor bolt hole needs to reserve a 45-55cm sediment section.

[0032] Furthermore, in S8, multiple guardrails and 15-20cm high toe boards are installed at heights of 0.3-0.9m and 1-1.5m on the outer side of the scaffolding working layer.

[0033] Furthermore, in S8, a zigzag ramp is set every 40-60m, with a ramp width of 1m and a slope of 1:3.

[0034] Furthermore, in S8, an anti-slip wooden strip is added every 40-60cm along the transverse side of the scaffolding planks, with the wooden strip being 2-3cm thick.

[0035] Furthermore, in S8, the height of the railing is 1-1.5m, and the height of the toe board is 17-20cm.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] (1) Wide applicability: The length of the wall tie can be adjusted by adjusting the rod to suit uneven slopes. The safety during drilling is greatly improved by the way the wall tie is installed and the subsequent reinforcement measures.

[0038] (2) The cost is low. The anchor rods are welded to the scaffold steel pipes to form wall ties, which can effectively connect the scaffold and improve the scaffold's anti-overturning ability, which is conducive to its promotion and application.

[0039] (3) The implementation is relatively simple. Most high and steep slope treatments involve anchor bolt construction. Existing drilling rigs can be used to drill wall ties and auxiliary reinforcement bars, which is convenient for construction and conducive to promotion and application. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the bottom treatment of the uprights in the scaffolding erection on a steep and loose slope according to an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the bottom treatment of the uprights in the scaffolding erection on a steep and loose slope according to an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the wall tie structure in the erection of scaffolding on a steep and loose slope according to an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of the cross-sectional structure of a wall tie in the erection of scaffolding on a steep and loose slope according to an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the drilling operation during the erection of scaffolding on a steep and loose slope, according to an embodiment of the present invention.

[0045] Figure 6 This is a schematic diagram of the installation of wall ties during the erection of scaffolding on a steep and loose slope according to an embodiment of the present invention;

[0046] Figure 7 This is a schematic cross-sectional view of the scaffolding erection on a steep and loose slope according to an embodiment of the present invention;

[0047] Figure 8 for Figure 7 A magnified view of a portion of the image.

[0048] Explanation of icon numbers:

[0049] 10. Wall ties; 11. Threaded steel bars; 12. Cement mortar; 13. Connecting steel pipes; 4. Swivel couplers; 15. Settlement section; 16. Adjusting rods; 17. Extended anchor bolts; 18. Tripod supports;

[0050] 20. Scaffold frame; 21. Horizontal bars; 22. Vertical bars; 23. Horizontal bars; 24. Slope connecting bars;

[0051] 30. Anchor bolt hole.

[0052] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the technical solutions of this invention are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0054] In the description of this invention, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the implementation conditions of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0055] Example 1

[0056] See Figures 1 to 8 This invention provides a construction method for erecting scaffolding on steep, loose slopes, comprising:

[0057] S1. Slope treatment:

[0058] The dangerous rocks on the slope were removed manually, and then the entire slope was treated with 1-5cm of C25 concrete spraying to ensure the stability of the slope.

[0059] S2, Subbase treatment:

[0060] The subbase is constructed using a stepped pouring method. The subbase is hardened with C20 concrete with a thickness of not less than 10cm. The span of each step is not less than 2 spans, and the height of each step is 5-15cm. Then, the uprights 22 are placed on the subbase to ensure the levelness of the subbase and the stability of the uprights 22.

[0061] Specifically, the pads should be wooden pads with a length of not less than 2 spans, a thickness of not less than 50mm, and a width of not less than 200mm.

[0062] S3. Scaffolding erection:

[0063] The scaffolding is erected in a four-row frame manner, and is built from the outside to the inside according to the actual slope shape, so as to achieve layered erection, with the horizontal bar 23 abutting against the slope.

[0064] Specifically, the horizontal spacing of the scaffolding is (0.5-1.5)m + (0.5-1.5)m + (0.5-1.5)m, the horizontal bar 23 is abutted against the slope, and the distance between the scaffolding and the slope is 0.1-0.5m; the longitudinal spacing is 1-2m, and the step distance is 1-2m;

[0065] S4, Bottom treatment of upright pole 22:

[0066] Depending on the available space on the slope, two methods were applied:

[0067] One option is to directly level the slope manually where the slope is relatively gentle and there is sufficient space, ensuring that the pole 22 is in full contact with the slope.

[0068] One method is for steeper slopes where the bottom of the pole 22 does not make enough contact with the slope surface. In this case, L-shaped steel bars are driven into the slope soil, mortar is poured in, and the pole 22 is fitted onto the steel bars.

[0069] S5, Layout of 24 inclined struts connecting slopes:

[0070] Slope connecting rods 24 are installed along the slope surface. The slope connecting rods 24 are set on the uprights 22 and are parallel to the slope surface.

[0071] Specifically, the slope brace 24 is 15-25cm from the bottom of the upright 22;

[0072] S6, Wall tie installation: 10

[0073] The wall ties 10 are arranged in two three-span configurations. The wall ties 10 are threaded steel bars 11 (auxiliary anchor rods). Anchor rod holes 30 are drilled on the slope. The anchor rod holes 30 need to be reserved for sediment sections 15. The prefabricated auxiliary anchor rods are inserted into the holes. The auxiliary anchor rods are welded with limit tripod brackets 18. Then, anchoring mortar is injected. After the anchor body has solidified, the auxiliary anchor rods are threadedly connected to the adjusting rods 16. The adjusting rods 16 are threadedly connected to the extension anchor rods 17. The extension anchor rods 17 are connected to the connecting steel pipes 13 by single-sided welding. Finally, the connecting short steel pipes are connected to the nodes of the scaffold frame 20 through swivel couplers 4.

[0074] Specifically, the wall tie 10 is a φ20-30 threaded steel bar 11, and an anchor bolt hole 30 of φ40-50mm is drilled on the slope. The anchor bolt hole 30 needs to reserve a 45-55cm sediment section 15.

[0075] S7. Drilling Rig Construction:

[0076] (1) Drilling rig location

[0077] Before drilling, depending on the drilling rig position, a longitudinal horizontal bar 21 is temporarily added to the top or tail of the drilling rig and is firmly connected to the uprights 22 on both sides of the span using right-angle couplers;

[0078] (2) 10 wall ties

[0079] When constructing the upper anchor bolts, use inclined steel pipes to connect with the steel pipes at 10 points of the lower row of wall ties. The inclined steel pipes are set up with the anchor bolt drilling rig.

[0080] S8, Operating Layer and Ramp:

[0081] The working level is fully covered with scaffold boards, which are set on three horizontal bars 21. The scaffold boards are laid flat by butt joints. Guardrails and high toe boards are set on the outside of the scaffold working level. The guardrails and toe boards are erected on the inside of the outer uprights 22.

[0082] According to the on-site construction progress, multiple zigzag ramps are set up at intervals. The ramps are fully covered with scaffold boards, and platforms are set up at the bends. Guardrails and toe boards are installed on both sides of the ramps and around the platforms. Wall ties and unloading devices are installed in accordance with the requirements for the upper and lower passages. Red warning lights are installed at the corners of the passages.

[0083] Specifically, in S8, multiple guardrails and 15-20cm high toe boards are installed at heights of 0.3-0.9m and 1-1.5m on the outer side of the scaffolding working layer; a zigzag ramp is installed every 40-60m, with a ramp width of 1m and a slope of 1:3; anti-slip wooden strips are added every 40-60cm along the transverse side of the scaffold boards, with a thickness of 2-3cm; the guardrail height is 1-1.5m, and the toe board height is 17-20cm.

[0084] Example 2

[0085] See Figures 1 to 8 This invention provides a construction method for erecting scaffolding on steep, loose slopes, comprising:

[0086] S1, Slope Treatment

[0087] In response to the loose and easily collapsed characteristics of the slope, the first step was to manually remove the dangerous rocks from the slope. Then, a 3cm layer of C25 concrete was sprayed onto the entire slope to ensure its stability.

[0088] S2, Subbase Treatment

[0089] The toe of this type of slope is often irregularly shaped with a significant longitudinal slope. To ensure the levelness of the subgrade and the stability of the uprights 22, the subgrade is constructed using a stepped pouring method. The subgrade is hardened with C20 concrete, with a thickness of not less than 10cm. Each step has a span of not less than two spans, and the height of each step is 5-15cm (depending on the actual terrain). Uprights 22 must be placed on a base plate, which is a wooden base plate with a length of not less than two spans, a thickness of not less than 50mm, and a width of not less than 200mm.

[0090] S3, scaffolding erection

[0091] Considering the steepness and height of the slope and the load parameters of the drilling rig, the scaffolding is erected in a four-row manner, and is laid out in layers from the outside to the inside according to the actual slope shape to reduce the overall stress height. The horizontal spacing is 0.9m + 0.9m + 0.9m, and the horizontal bar 23 is abutted against the slope. The distance between the scaffolding and the slope is 0.3m; the longitudinal spacing is 1.5m, and the step distance is 1.5m.

[0092] S4, Bottom measures of pole 22

[0093] Depending on the available space on the slope, two methods were employed. One method, for gentler slopes with ample space, involved manually leveling the slope at a 10cm x 10cm interval to ensure full contact between the pole 22 and the slope surface. The other method, for steeper slopes where the bottom of the pole 22 did not adequately contact the slope surface, involved driving L-shaped steel bars into the slope soil, grouting with M30 mortar, and anchoring the pole 22 to the steel bars.

[0094] S5, slope bracing 24 installation

[0095] To prevent some uprights 22 from being suspended and to maintain overall stability, slope-connecting diagonal braces 24 are installed along the slope, on the uprights 22, parallel to the slope, and 20cm from the bottom of the uprights 22.

[0096] S6, Wall tie installation 10

[0097] The wall ties 10 are installed in two three-span configurations. The wall ties 10 are φ25 threaded steel bars 11 (auxiliary anchor rods). φ45mm anchor rod holes 30 are drilled on the slope, and a 50cm sediment section 15 needs to be reserved in each anchor rod hole 30. The prefabricated auxiliary anchor rods are inserted into the holes, and a limiting tripod bracket 18 is welded onto the auxiliary anchor rod. This bracket is made of φ8 round steel bars, which can both center and position the anchor rod and increase the anchor rod's limiting capacity. Then, anchoring mortar, requiring M30 cement mortar 12, is injected. After the anchor body strength reaches 75%, the auxiliary anchor rod is threadedly connected to the adjusting rod 16. The adjusting rod 16 is threadedly connected to the extended anchor rod 17. The extended anchor rod 17 is connected to the connecting steel pipe 13 by single-sided welding. Finally, the connecting short steel pipe is connected to the node of the scaffold frame 20 through a swivel coupler 4.

[0098] S7. Strengthening measures during drilling operations

[0099] (1) Drilling rig location

[0100] Since the anchor drilling rig needs to be placed at an angle, in order to bear the reaction force during drilling operations, before drilling, according to the drilling rig position, a longitudinal horizontal bar 21 is temporarily added to the top or tail of the drilling rig and is firmly connected to the uprights 22 on both sides of the span with right-angle fasteners.

[0101] (2) 10 wall ties

[0102] To ensure safety, when constructing the upper anchor bolts, inclined steel pipes are used to connect to the steel pipes at 10 points of the lower wall ties. The inclined steel pipes are set up along with the anchor bolt drilling rig.

[0103] S8, Operating Level and Ramp

[0104] The working level is fully covered with scaffold boards, which are set on three horizontal bars 21. The scaffold boards are laid flat by butt joints. Two guardrails and 18cm high toe boards are set at 0.6m and 1.2m heights on the outside of the scaffold working level. The guardrails and toe boards should be erected on the inside of the outer uprights 22.

[0105] To facilitate personnel movement up and down the work surface, a zigzag ramp is installed every 40-60m according to the on-site construction progress. The ramp is 1m wide and has a slope of 1:3. The ramp is fully covered with scaffold boards, and anti-slip wooden strips with a thickness of 2-3cm are added every 30cm horizontally. A platform with a width of 1m is set up at the bend. Guardrails and toe boards are installed on both sides of the ramp and around the platform. The guardrails are 1.2m high and the toe boards are 18cm high. The access passages are fixed with wall ties and unloading devices as required. Red warning lights are installed at the corners of the passages.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A construction method for erecting scaffolding on steep and loose slopes, characterized in that: S1. Slope treatment: The dangerous rocks on the slope were removed manually, and then the entire slope was treated with plain concrete spraying to ensure the stability of the slope. S2, Subbase treatment: The subbase is constructed using a stepped pouring method. The subbase is hardened with concrete, and then the uprights are placed on the subbase to ensure the levelness of the subbase and the stability of the uprights. S3. Scaffolding erection: The scaffolding is erected in a four-row frame manner, and is laid out from the outside to the inside according to the actual slope shape, so as to achieve layered erection, with the horizontal bars abutting against the slope. S4. Treatment of the bottom of the pole: Depending on the available space on the slope, two methods were implemented: One approach is to use a gentler slope with ample space, where the slope is manually leveled to ensure full contact between the poles and the slope. One method is for steep slopes where the bottom of the pole does not make enough contact with the slope surface. In this case, L-shaped steel bars are driven into the slope soil, mortar is poured in, and the pole is then fitted onto the steel bars. S5. Layout of inclined struts for connecting slopes: Slope connecting braces are installed along the slope surface, with the braces placed on the uprights and parallel to the slope surface; S6. Wall tie installation: The wall ties are installed in two parts across three spans. The wall ties are made of threaded steel bars, which serve as auxiliary anchor rods. Anchor rod holes are drilled on the slope, and these holes need to be reserved for sediment. The prefabricated auxiliary anchor rods are inserted into the holes, and a three-legged support with a limit position is welded onto the auxiliary anchor rods. Then, anchoring mortar is injected. After the anchoring mortar has solidified, the auxiliary anchor rods are threadedly connected to the adjusting rods, and the adjusting rods are threadedly connected to the extension anchor rods. The extension anchor rods are connected to the connecting steel pipes by single-sided welding. Finally, the connecting short steel pipes are connected to the nodes of the scaffolding structure by swivel couplers. S7. Drilling Rig Construction: (1) Drilling rig location Before drilling, depending on the drilling rig position, a longitudinal horizontal bar is temporarily added to the top or tail of the drilling rig and securely connected to the uprights on both sides of the span using right-angle couplers; (2) Wall tie When constructing the upper anchor bolts, use inclined steel pipes to connect with the steel pipes at the lower row of wall ties. The inclined steel pipes are set up with the anchor bolt drilling rig. S8, Operating Layer and Ramp: The working level is fully covered with scaffold boards, which are set on three horizontal bars. The scaffold boards are laid flat by butt joints, and guardrails and high toe boards are set on the outside of the working level of the scaffold. The guardrails and toe boards are erected on the inside of the outer uprights. According to the on-site construction progress, multiple zigzag ramps are set up at intervals. The ramps are fully covered with scaffold boards, and platforms are set up at the bends. Guardrails and toe boards are installed on both sides of the ramps and around the platforms. The upper and lower passages are fixed with wall ties and unloading devices as required. Red warning lights are installed at the corners of the passages.

2. The construction method for erecting scaffolding on steep and loose slopes as described in claim 1, characterized in that: In S1, the entire slope surface is treated with 1-5cm of C25 concrete spraying.

3. The construction method for erecting scaffolding on steep and loose slopes as described in claim 1, characterized in that: In S2, the subbase is made of C20 hardened concrete with a thickness of not less than 10cm, the span of a single step is not less than 2 spans, and the height of a single step is 5-15cm; the base plate is made of wood with a length of not less than 2 spans, a thickness of not less than 50mm, and a width of not less than 200mm.

4. The construction method for erecting scaffolding on steep and loose slopes as described in claim 1, characterized in that: In S3, the horizontal spacing of the scaffold is 0.5-1.5m, the horizontal bars rest on the slope, and the distance between the scaffold and the slope is 0.1-0.5m; the longitudinal spacing is 1-2m, and the step spacing is 1-2m.

5. The construction method for erecting scaffolding on steep and loose slopes as described in claim 1, characterized in that: In S5, the slope bracing is 15-25cm from the bottom of the upright.

6. The construction method for erecting scaffolding on steep and loose slopes as described in claim 1, characterized in that: In S6, the wall tie is a φ20-30 threaded steel bar, and an anchor bolt hole of φ40-50mm is drilled on the slope. The anchor bolt hole needs to reserve a 45-55cm sediment section.

7. The construction method for erecting scaffolding on steep and loose slopes as described in claim 1, characterized in that: In S8, multiple guardrails and 15-20cm high toe boards are installed at heights of 0.3-0.9m and 1-1.5m on the outer side of the scaffolding working layer.

8. The construction method for erecting scaffolding on steep and loose slopes as described in claim 1, characterized in that: In S8, a zigzag ramp is set every 40-60m, with a ramp width of 1m and a slope of 1:

3.

9. The construction method for erecting scaffolding on steep and loose slopes as described in claim 1, characterized in that: In S8, an anti-slip wooden strip is added every 40-60cm along the horizontal direction of the scaffolding boards, with the wooden strip being 2-3cm thick.

10. The construction method for erecting scaffolding on steep and loose slopes as described in claim 1, characterized in that: In S8, the railing height is 1-1.5m and the toe board height is 17-20cm.

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