CN112921989A

CN112921989A - High slope construction method

Info

Publication number: CN112921989A
Application number: CN202110072728.5A
Authority: CN
Inventors: 孙德林; 张金昌; 周高军; 寇忠安; 岳中成
Original assignee: Shandong Highway & Bridge Construction Co ltd
Current assignee: Shandong Highway & Bridge Construction Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-06-08

Abstract

The application relates to the technical field of high slope construction, and discloses a high slope construction method, which mainly comprises the following steps: step S1: site cleaning: cutting, clearing and transporting away all vegetation, garbage, organic impurities and the like in the land using range and turf and surface soil in the range of 30cm from the top of the original ground; step S2: and (4) drainage protection: digging a drainage channel at the top of the side slope; step S3: erecting a lifting platform: a lifting platform for supporting excavating equipment is erected on the high slope; step S4: excavating a side slope: moving the excavator to a lifting platform, moving the excavator to a position close to the top of the slope by the lifting platform, and excavating the high slope step by step; step S5: side slope protection: the surface layer of the side slope is reinforced, and the stability of the side slope is improved. This application has the effect that reduces high slope construction cost.

Description

High slope construction method

Technical Field

The application relates to the field of high slope construction, in particular to a high slope construction method.

Background

In the field of geotechnical engineering or engineering geological research, "side slope" generally refers to a general term for slope body forms such as natural slopes, river water bank slopes, tablelands, slide-flow dump bodies, and artificial slopes (formed by traffic roads, open-pit mining, construction sites, foundation works, and the like). The side slope mainly comprises a slope top, a slope surface, a slope foot and a slope body in a certain range at the lower part. There are many types of classification of the side slope.

For the side slopes with the soil slope height of more than 20m and less than 100m or the rock slope height of more than 30m and less than 100m, the side slope height factor plays an important role and influence on the side slope stability, the side slope stability analysis and the protection and reinforcement engineering design are designed and calculated individually or specially, and the side slopes are called as high side slopes.

At present, the traditional high slope construction process is to set up double rows of scaffolds on a slope surface, and then set up construction equipment such as a drilling machine on a working platform set up by the scaffolds for construction.

Aiming at the related technologies, the inventor thinks that a large amount of manpower and material resources are needed to be consumed for supporting the working platform by erecting a scaffold, and the defects of long construction period and high construction cost exist.

Disclosure of Invention

In order to solve the problems that a scaffold is erected to support a working platform, the construction period is long, and the manufacturing cost is high, the application provides a high slope construction method.

The application provides a high slope construction method, which adopts the following technical scheme:

a high slope construction method mainly comprises the following steps: step S1: site cleaning: cutting, clearing and transporting away all vegetation, garbage, organic impurities and the like in the land using range and turf and surface soil in the range of 25-35 cm at the top of the original ground; step S2: and (4) drainage protection: digging a drainage channel at the top of the side slope; step S3: erecting a lifting platform: a lifting platform for supporting excavating equipment is erected on the high slope; step S4: excavating a side slope: moving the excavator to a lifting platform, moving the excavator to a position close to the top of the slope by the lifting platform, and excavating the high slope step by step; step S5: side slope protection: the surface layer of the side slope is reinforced, and the stability of the side slope is improved.

By adopting the technical scheme, all vegetation, garbage, organic impurities and the like on the side slope and turf and surface soil within the range of 25-35 cm of the top of the original ground are cut down, removed and transported away, and a drainage channel is excavated at the top of the slope, so that the water seepage at the top of the slope is reduced, and the safety in the construction process is improved. Set up lift platform on the side slope, utilize lift platform to go up and down to digging the machine, lift platform simple to operate improves work efficiency, and lift platform repeatedly usable reduces the cost of high slope construction simultaneously. The method comprises the steps of excavating a high slope by utilizing an excavator, excavating step by step according to an excavating sequence from top to bottom, reinforcing the excavated first-level slope after excavating the first level, excavating the next-level slope after reinforcing the upper-level slope, and reinforcing the excavation step by step until the reinforcement of the high slope is finished.

Optionally, the lifting platform in step S1 includes two sets of anchoring mechanisms, a slideway mechanism, a lifting mechanism and a supporting platform for bearing the excavator, wherein one set of anchoring mechanism is located at the top of the high slope, the lifting mechanism is fixedly connected with the anchoring mechanism at the top of the high slope, the slideway mechanism is connected between the two anchoring mechanisms, the lifting mechanism is connected with the slideway mechanism, and the supporting platform is connected with the slideway mechanism.

By adopting the technical scheme, the anchoring mechanisms are connected with the ground, the slide rail mechanism is connected between the two anchoring mechanisms, the supporting platform is connected with the slide rail mechanism and slides along the slide rail mechanism, the excavator is supported by the supporting platform, and the lifting mechanism drives the supporting platform to move along the slide rail mechanism, so that the excavator can move along the side slope. The lifting platform is convenient to install, saves human resources, can be repeatedly used, and reduces the cost of high slope construction operation.

Optionally, the anchoring mechanism comprises a base and a plurality of groups of limiting assemblies, the plurality of groups of limiting assemblies are all connected with the base, each limiting assembly comprises a rotating shaft, a sleeve and a plurality of first bevel gears, the plurality of first bevel gears are all horizontally arranged, the plurality of first bevel gears are all fixedly connected with the rotating shaft in a coaxial manner, the plurality of first bevel gears are arranged at equal intervals along the length direction of the rotating shaft, the sleeve is sleeved outside the first bevel gears and the sleeve is rotatably connected with the rotating shaft in a coaxial manner, the first bevel gears are connected with two coaxially arranged second bevel gears in a meshed manner, the rotating axes of the second bevel gears are perpendicular to the rotating shaft, one sides of the two second bevel gears, which are far away from each other, are rotatably connected with a connecting pipe in a coaxial manner, the connecting pipe is fixedly connected with the sleeve and penetrates through the side wall of the sleeve to be communicated with the, the two drill rods move in opposite directions and are coaxially arranged, the two drill rods are coaxially and rotatably connected with the bevel gear, the slide way mechanism is hinged with the base, and the lifting mechanism is fixedly connected with the base.

Through adopting above-mentioned technical scheme, when fixing anchor mechanism, insert spacing subassembly in the pre-buried hole, rotate the pivot and drive first bevel gear and rotate, first bevel gear rotates and drives two second bevel gear rotations, and second bevel gear rotates and drives the drilling rod rotation. Through with drilling rod and connecting pipe threaded connection, the drilling rod rotates the in-process and moves to the direction of keeping away from second bevel gear, inserts the drilling rod and fixes spacing subassembly in the soil horizon.

Optionally, one end of the drill rod, which is far away from the second bevel gear, is tapered, and one end of the drill rod, which is far away from the second bevel gear, is provided with a thread.

By adopting the technical scheme, one end of the drill rod, which is far away from the second bevel gear, is set to be conical, and the thread is arranged at one end of the drill rod, which is far away from the second bevel gear, so that the difficulty of drilling the drill rod into a soil layer of the side wall of the pre-buried hole is reduced, and the working efficiency is improved.

Optionally, a roller is arranged below the base, and the roller is rotatably connected with the base.

Through adopting above-mentioned technical scheme, rotate the connection gyro wheel in base below, reduce the friction between base and the ground, improve the convenience that lift platform removed.

Optionally, the sliding mechanism includes a sliding rail and a sliding block, the sliding rail is hinged between the two bases, the sliding block is connected to the sliding rail in a sliding manner, the lifting mechanism includes a winch, the winch is fixedly connected to the bases, a lifting end of the winch is fixedly connected to the sliding block, the supporting platform is fixedly connected to the sliding block, and the supporting platform is horizontally arranged.

Through adopting above-mentioned technical scheme, with the lift end and the slider fixed connection of hoist engine, utilize the hoist engine to control the slip of slider on the slide rail, supporting platform and slider fixed connection, the slider removes and drives supporting platform and remove to the realization is to digging the removal of machine.

Optionally, step S5 mainly includes the following steps: s51: anchor rod construction: carrying out layout planning on the slope of the current level, punching at a corresponding position, cleaning the hole after punching is finished, inserting an anchor rod into the hole, and carrying out grouting fixation; s52: frame beam construction: embedding lattice beams into the side slope, forming expansion joints at equal intervals on the lattice beams, wherein the width of each expansion joint is 2-4 cm, filling the expansion joints with asphalt reinforced concrete, and filling the expansion joints with the depth, wherein a C25 reinforced concrete structure is adopted; s53: grass planting: seeds are sown in the lattice beams and water is sprayed regularly.

Through adopting above-mentioned technical scheme, bury the frame roof beam underground on the side slope, utilize the frame roof beam to improve the structural strength on side slope top layer. By sowing seeds in the frame beams, the stability of the soil layer on the side slope is improved by using the vegetation.

Optionally, step S53 mainly includes the following steps: s531: leveling the slope surface: crushing the plowing and planting soil on the side slope surface by using a soil crusher and leveling the crushed plowing and planting soil; s532: spray seeding construction: mixing grass seeds and fertilizer in a spray seeder, adding appropriate water, fully stirring uniformly, and spray seeding on a slope; s533: covering with non-woven fabrics: covering a non-woven fabric after the grass seeds are sprayed, promoting the germination and growth of the grass seeds, and timely removing the non-woven fabric after the plants grow regularly; s534: early-stage maintenance: and (5) periodically performing watering, pest control and reseeding operations.

By adopting the technical scheme, the survival rate of the grass seeds and the growth time of the grass seeds are improved, the construction period is shortened, and the construction cost is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the lifting platform is erected on the side slope, and the excavator is lifted by the lifting platform, so that the lifting platform is convenient to mount, the working efficiency is improved, and meanwhile, the lifting platform can be repeatedly used, and the cost of high side slope construction is reduced;

2. the roller wheels are rotatably connected below the base, so that the friction between the base and the ground is reduced, and the moving convenience of the lifting platform is improved;

3. the frame beam is embedded in the side slope, and the structural strength of the surface layer of the side slope is improved by the frame beam; by sowing seeds in the frame beams, the stability of the soil layer on the side slope is improved by using the vegetation.

Drawings

FIG. 1 is a flow chart of an overall construction method according to an embodiment of the present application;

FIG. 2 is a schematic view of the overall structure of the lifting platform according to the embodiment of the present application;

FIG. 3 is a flowchart of a slope protection construction method according to an embodiment of the present application;

FIG. 4 is a flow chart of a grass planting method according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a portion of an anchoring mechanism according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a limiting assembly portion according to an embodiment of the present application.

Description of reference numerals: 100. a lifting platform; 200. an anchoring mechanism; 210. a base; 220. a limiting component; 221. a rotating shaft; 222. a sleeve; 223. a first bevel gear; 224. a second bevel gear; 225. a connecting pipe; 226. a drill stem; 230. a roller; 300. a slide mechanism; 310. a slide rail; 320. a slider; 400. a lifting mechanism; 410. a winch; 500. a support platform; 510. a support bar; 520. a pulley; 600. a drainage channel.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a high slope construction method. Referring to fig. 1 and 2, a high slope construction method mainly includes the steps of: step S1: site cleaning: cutting, clearing and transporting away all vegetation, garbage, organic impurities and the like in the land using range and turf and surface soil in the range of 25-35 cm at the top of the original ground; the construction on the subsequent side slope is facilitated by cutting, clearing and transporting away all vegetation, garbage, organic impurities and the like on the side slope and turf and surface soil within the range of 25-35 cm at the top of the original ground. Step S2: and (4) drainage protection: digging a drainage channel 600 at the top of the side slope; through digging drainage channel 600 at the top of slope to reduce the infiltration of slope top department, improve the security in the work progress. Step S3: erecting a lifting platform: a lifting platform 100 for supporting excavating equipment is erected on the high slope; set up lift platform 100 on the side slope, utilize lift platform 100 to go up and down to digging the machine, lift platform 100 simple to operate improves work efficiency, and lift platform 100 repeatedly usable reduces the cost of high slope construction simultaneously. Step S4: excavating a side slope: moving the excavator to the lifting platform 100, moving the excavator to a position close to the top of the slope by the lifting platform 100, and excavating the high slope step by step; and excavating the high slope by using an excavator, and excavating step by step according to the excavating sequence from top to bottom. Step S5: side slope protection: after the first grade is excavated, the first grade slope which is excavated is reinforced, the next grade slope is excavated after the reinforcement of the higher grade slope is finished, and the slope is gradually excavated and reinforced, so that the safety of the slope excavating process and the stability of the whole slope are improved.

Referring to fig. 2 and 3, step S5 mainly includes the following steps: s51: anchor rod construction: and (4) carrying out layout planning on the slope, punching at a corresponding position, cleaning the hole after the punching is finished, and inserting the anchor rod into the hole and carrying out grouting fixation. S52: frame beam construction: embedding lattice beams into the side slope, forming expansion joints at equal intervals on the lattice beams, wherein the width of each expansion joint is 2-4 cm, filling the expansion joints with asphalt reinforced concrete, and filling the expansion joints with the depth, wherein a C25 reinforced concrete structure is adopted; the frame beam is embedded in the side slope, and the structural strength of the surface layer of the side slope is improved by the frame beam. S53: grass planting: sowing seeds in the lattice beams, and regularly spraying water; by sowing seeds in the frame beams, the stability of the soil layer on the side slope is improved by using the vegetation.

Referring to fig. 3 and 4, step S53 mainly includes the following steps: s531: leveling the slope surface: crushing the plowing and planting soil on the side slope surface by using a soil crusher and leveling the crushed plowing and planting soil; s532: spray seeding construction: mixing grass seeds and fertilizer in a spray seeder, adding appropriate water, fully stirring uniformly, and spray seeding on a slope; s533: covering with non-woven fabrics: covering a non-woven fabric after the grass seeds are sprayed, promoting the germination and growth of the grass seeds, and timely removing the non-woven fabric after the plants grow regularly; the possibility that the grass seeds are washed away by surface water is reduced by covering the grass seeds with the non-woven fabric. S534: early-stage maintenance: the watering, the pest control and the reseeding operation are carried out regularly, the survival rate of the grass seeds and the growth time of the grass seeds are improved, the construction period is shortened, and therefore the construction cost is reduced.

Referring to fig. 2, the lifting platform 100 in step S1 includes two sets of anchoring mechanisms 200, wherein one set of anchoring mechanisms 200 is located at the top of the high slope, and the other set of anchoring mechanisms 200 is located at the bottom of the high slope. A slideway mechanism 300 is hinged between the two groups of anchoring mechanisms 200, the slideway mechanism 300 is connected with a supporting platform 500, and a lifting mechanism 400 used for controlling the supporting platform 500 to move is fixedly connected to the anchoring mechanism 200 positioned at the top of the high slope. The anchoring mechanisms 200 are connected with the ground, the slideway mechanism 300 is connected between the two anchoring mechanisms 200, the supporting platform 500 is connected with the slideway mechanism 300 and the supporting platform 500 slides along the slideway mechanism 300, the supporting platform 500 is used for supporting the excavator, and the lifting mechanism 400 drives the supporting platform 500 to move along the slideway mechanism 300 so as to realize the movement of the excavator along the side slope. The lifting platform 100 is convenient to install, manpower resources are saved, the lifting platform 100 can be repeatedly used, and the cost of high slope construction operation is reduced.

Referring to fig. 5 and 6, the anchoring mechanism 200 includes a base 210, and a limiting assembly 220 is slidably connected to four corners of the base 210. The limiting assembly 220 comprises a rotating shaft 221, the rotating axis of the rotating shaft 221 is vertically arranged, one end of the rotating shaft 221, which is close to the ground, is coaxially and fixedly connected with a sleeve 222, and the sleeve 222 is located below the base 210. The three first bevel gears 223 are fixedly connected coaxially in a rotating mode, the three first bevel gears 223 are all horizontally arranged, the three first bevel gears 223 are arranged along the length direction of the rotating shaft 221 at equal intervals, and the sleeve 222 is sleeved on the outer side of the first bevel gears 223. The first bevel gear 223 is connected with two coaxially arranged second bevel gears 224 in a meshed manner, the rotating axis of the second bevel gear 224 is perpendicular to the rotating shaft 221, one sides of the two second bevel gears 224, which are away from each other, are coaxially and rotatably connected with a connecting pipe 225, the connecting pipe 225 is fixedly connected with the sleeve 222, the connecting pipe 225 penetrates through the side wall of the sleeve 222 to be communicated with the outer side of the sleeve 222, one end, far away from the second bevel gear 224, of the connecting pipe 225 is in threaded connection with a drill rod 226 for drilling, the two drill rods 226 move oppositely, the two drill rods 226 are coaxially arranged, and the. When the anchoring mechanism 200 is fixed, the limiting component 220 is inserted into the pre-buried hole, the rotating shaft 221 drives the first bevel gear 223 to rotate, the first bevel gear 223 rotates to drive the two second bevel gears 224 to rotate, and the second bevel gears 224 rotate to drive the drill rod 226 to rotate. By connecting the drill rod 226 with the connecting pipe 225 through threads, the drill rod 226 moves away from the second bevel gear during rotation, and the drill rod 226 is inserted into the soil layer to fix the limiting assembly 220.

Referring to fig. 6, the end of the drill rod 226 remote from the second beveled gear is tapered and the end of the drill rod 226 remote from the second beveled gear is threaded. Through setting up the drill rod 226 and keeping away from the one end of second helical gear for the toper and set up the screw thread at drill rod 226 and keeping away from second helical gear one end, reduce the degree of difficulty that drill rod 226 bored to the soil layer of pre-buried hole lateral wall in, improve work efficiency.

Referring to fig. 1 and 5, the sliding mechanism includes a sliding rail 310, and two ends of the sliding rail 310 are respectively hinged to the two bases 210. The slide rail 310 is slidably connected with a slide block 320, the slide block 320 is fixedly connected with a support platform 500, and the support platform 500 is horizontally arranged. Two support rods 510 are fixedly connected to the lower portion of the supporting platform 500, the two support rods 510 are located on two opposite sides of the sliding direction of the sliding block 320, a pulley 520 is rotatably connected to one end, far away from the supporting platform 500, of each support rod 510, and the pulley 520 is abutted to the sliding way. The lifting mechanism 400 comprises a winding engine 410, the winding engine 410 is fixedly connected with the base 210, and the lifting end of the winding engine 410 is fixedly connected with the sliding block 320. The lifting end of the winch 410 is fixedly connected with the sliding block 320, the winch 410 is used for controlling the sliding block 320 to slide on the sliding rail 310, the supporting platform 500 is fixedly connected with the sliding block 320, and the sliding block 320 moves to drive the supporting platform 500 to move, so that the movement of the excavator is realized.

The implementation principle of the high slope construction method provided by the embodiment of the application is as follows: when high slope construction is carried out, the lifting platform 100 is erected on the slope, the excavator is lifted by the lifting platform 100, the lifting platform 100 is convenient to install, and the working efficiency of high slope construction is improved. Meanwhile, the lifting platform 100 can be repeatedly used, and the cost of high slope construction is reduced. The method comprises the steps of excavating a high slope by utilizing an excavator, excavating step by step according to an excavating sequence from top to bottom, reinforcing the excavated first-level slope after excavating the first level, excavating the next-level slope after reinforcing the upper-level slope, and reinforcing the excavation step by step until the reinforcement of the high slope is finished.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A high slope construction method mainly comprises the following steps: step S1: site cleaning: cutting, clearing and transporting away all vegetation, garbage, organic impurities and the like in the land using range and turf and surface soil in the range of 25-35 cm at the top of the original ground; step S2: and (4) drainage protection: excavating a drainage channel (600) at the top of the side slope; step S3: the lifting platform (100) is set up: a lifting platform (100) for supporting excavating equipment is erected on the high slope; step S4: excavating a side slope: moving the excavator to a lifting platform (100), moving the excavator to a position close to the top of a slope by the lifting platform (100), and excavating the high slope step by step; step S5: side slope protection: the surface layer of the side slope is reinforced, and the stability of the side slope is improved.

2. The high slope construction method according to claim 1, characterized in that: the lifting platform (100) in the step S1 comprises two groups of anchoring mechanisms (200), a slideway mechanism (300), a lifting mechanism (400) and a supporting platform (500) for bearing the excavator, wherein one group of anchoring mechanisms (200) is positioned at the top of the high slope, the lifting mechanism (400) is fixedly connected with the anchoring mechanisms (200) at the top of the high slope, the slideway mechanism (300) is connected between the two anchoring mechanisms (200), the lifting mechanism (400) is connected with the slideway mechanism (300), and the supporting platform (500) is connected with the slideway mechanism (300).

3. The high slope construction method according to claim 2, characterized in that: the anchoring mechanism (200) comprises a base (210) and a plurality of groups of limiting assemblies (220), the plurality of groups of limiting assemblies (220) are connected with the base (210), each limiting assembly (220) comprises a rotating shaft (221), a sleeve (222) and a plurality of first bevel gears (223), the plurality of first bevel gears (223) are horizontally arranged, the plurality of first bevel gears (223) are coaxially and fixedly connected with the rotating shaft (221), the plurality of first bevel gears (223) are arranged at equal intervals along the length direction of the rotating shaft (221), the sleeves (222) are sleeved on the outer sides of the first bevel gears (223), the sleeves (222) are coaxially and rotatably connected with the rotating shaft (221), the first bevel gears (223) are meshed with two coaxially arranged second bevel gears (224), the rotating axis of the second bevel gears (224) is vertical to the rotating shaft (221), and connecting pipes (225) are coaxially and rotatably connected to the sides of the two second bevel gears (224) which deviate from each other, the connecting pipe (225) is fixedly connected with the sleeve (222), the connecting pipe (225) penetrates through the side wall of the sleeve (222) to be communicated with the outer side of the sleeve (222), one end, far away from the second bevel gear (224), of the connecting pipe (225) is connected with a drill rod (226) for drilling through threads, the two drill rods (226) move oppositely and the two drill rods (226) are coaxially arranged, the two drill rods (226) are coaxially and rotatably connected with the second bevel gear (224), the slide way mechanism (300) is hinged to the base (210), and the lifting mechanism (400) is fixedly connected with the base (210).

4. A high slope construction method according to claim 3, characterized in that: one end of the drill rod (226) far away from the second bevel gear (224) is conical, and one end of the drill rod (226) far away from the second bevel gear (224) is provided with threads.

5. A high slope construction method according to claim 3, characterized in that: a roller (230) is arranged below the base (210), and the roller (230) is rotatably connected with the base (210).

6. The high slope construction method according to claim 5, characterized in that: the sliding mechanism comprises a sliding rail (310) and a sliding block (320), the sliding rail (310) is hinged between two bases (210), the sliding block (320) is connected to the sliding rail (310) in a sliding mode, the lifting mechanism (400) comprises a winch (410), the winch (410) is fixedly connected with the bases (210), the lifting end of the winch (410) is fixedly connected with the sliding block (320), the supporting platform (500) is fixedly connected with the sliding block (320), and the supporting platform (500) is horizontally arranged.

7. The high slope construction method according to claim 1, characterized in that: step S5 mainly includes the following steps: s51: anchor rod construction: carrying out layout planning on the slope of the current level, punching at a corresponding position, cleaning the hole after punching is finished, inserting an anchor rod into the hole, and carrying out grouting fixation; s52: frame beam construction: embedding lattice beams into the side slope, forming expansion joints at equal intervals on the lattice beams, wherein the width of each expansion joint is 2-4 cm, filling the expansion joints with asphalt reinforced concrete, and filling the expansion joints with the depth, wherein a C25 reinforced concrete structure is adopted; s53: grass planting: seeds are sown in the lattice beams and water is sprayed regularly.

8. The high slope construction method according to claim 1, characterized in that: step S53 mainly includes the following steps: s531: leveling the slope surface: crushing the plowing and planting soil on the side slope surface by using a soil crusher and leveling the crushed plowing and planting soil; s532: spray seeding construction: mixing grass seeds and fertilizer in a spray seeder, adding appropriate water, fully stirring uniformly, and spray seeding on a slope; s533: covering with non-woven fabrics: covering a non-woven fabric after the grass seeds are sprayed, promoting the germination and growth of the grass seeds, and timely removing the non-woven fabric after the plants grow regularly; s534: early-stage maintenance: and (5) periodically performing watering, pest control and reseeding operations.