CN112695776A - High-steep rocky slope micro-terrain small-region re-greening method - Google Patents

High-steep rocky slope micro-terrain small-region re-greening method Download PDF

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Publication number
CN112695776A
CN112695776A CN202011569713.1A CN202011569713A CN112695776A CN 112695776 A CN112695776 A CN 112695776A CN 202011569713 A CN202011569713 A CN 202011569713A CN 112695776 A CN112695776 A CN 112695776A
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China
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slope
groove
terrain
grooves
rock
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CN202011569713.1A
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姚爱军
唐福尧
田甜
王扩
周政
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Beijing University of Technology
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Beijing University of Technology
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00—Cultivation of specific crops or plants not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/23—Dune restoration or creation; Cliff stabilisation

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Botany (AREA)
  • Environmental Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

The invention adopts a micro-terrain zoning greening method for a high and steep rocky slope, and fully utilizes the existing micro-terrain to carry out groove repairing excavation after meeting the two conditions of integral stability of the rocky slope, existence of grooves formed by natural weathering on the slope surface of the slope or formed after blasting of the slope body, so that the grooves are arranged on the slope surface in a plum blossom-like shape. A construction technology of a micro-terrain vegetation trench of a rocky slope. The groove is excavated by a rock drill, the shape of the groove can meet the shape of the reverse slope groove by combining the landform characteristics of the excavated part, and the groove has different shapes. The grooves formed on the slope surface after blasting or natural weathering do not satisfy the above conditions. After the conditions of overall stability of the rocky slope, natural weathering of the slope surface of the slope or grooves formed after blasting of the slope body are met, the method reduces the construction cost of greening the rocky slope, prevents the vegetation soil in the grooves from being washed away by rainwater in rainstorm to a certain extent, and avoids affecting the greening effect.

Description

High-steep rocky slope micro-terrain small-region re-greening method
Technical Field
The invention belongs to the technical field of rock slope greening, and particularly relates to a rock high-cut slope micro-terrain small-region re-greening construction method.
Background
With the concept of ecological civilization construction being integrated into the aspect of economic development, the requirements of people on the surrounding living environment are higher and higher, the good ecological environment becomes a growing point of people's life, becomes a point of exerting strength showing good images of China, and the real environmental benefit brought by the fact that people feel economic development becomes a problem that people must face.
At present, for the ecological management of rock slopes, the adopted ecological protection technologies include a vegetation concrete slope protection method, an anchor rod-geotechnical net cushion spray seeding grass planting slope protection method and a grouted rubble skeleton grass planting slope protection method. The vegetation concrete slope protection method sprays a vegetation concrete layer to the rock surface through machinery, and well bonds a vegetation layer and the rock surface by adopting engineering means such as cement, wire netting, anchor rods and the like, so that a layer of greening base material with certain strength and erosion resistance can be formed, and the greening base material can be stably attached to the rock surface, and the vegetation can grow on the greening base material; the anchor rod-earthwork net cushion spray seeding grass planting slope protection method is a technology of drilling holes on a rock slope, hanging the earthwork net cushion on a slope surface after installing an anchor rod and further spraying greening base materials so as to achieve greening of the rock slope; the method for protecting slope by planting grass on the slope surface with grouted rubble stone skeleton is a slope protection technology formed by combining the methods of turf paving, three-dimensional vegetation net planting, grass spray planting and the like. The mortar rubble frame can be divided into a square grid shape, a diamond shape, an arch shape, a herringbone shape and the like according to different shapes, and is commonly used for a side slope with a slope ratio of 1: 1.0-1: 1.5 and the height of each grade of slope is not more than 10 m. However, none of these techniques can fully utilize the terrain conditions after cutting the rock slope for greening, and thus the economic efficiency is poor.
Disclosure of Invention
The method is a rock slope micro-terrain plot re-greening method, and mainly solves the following technical problems:
(1) a lithologic slope micro-terrain zoning method and an application condition. After the conditions of overall stability of the rocky slope, natural weathering of the slope surface of the slope or a groove formed after blasting of the slope body are met, the method for micro-terrain small-area ecological greening by fully utilizing the existing natural terrain and topographic features is provided. The method can greatly reduce the construction cost of rock slope greening.
(2) A construction technology of a micro-terrain vegetation trench of a rocky slope. The groove is reverse slope groove, can prevent to a certain extent that the vegetation soil in the groove is taken away by the rainwash when rainstorm, is unlikely to influence the effect of making green again.
Therefore, the method can fully utilize natural terrains and topographic features to carry out the greenery restoration of the micro-terrain subdistricts, thereby achieving a better greenery restoration effect under the condition of limited budget.
The technical scheme adopted by the invention is a high-steep rocky slope micro-terrain small-region re-greening method, which comprises the following steps:
1) clear up domatic 1, clear up debris and the not hard up rock mass on domatic 1.
2) After the slope surface 1 is cleaned, micro-terrain zoning is carried out on the slope surface of the slope body 2 to form each block 3. The fractal mode is that a slope surface is divided into square grids of 3 multiplied by 3m by using paint lines.
3) After the block 3 is divided, the position of the groove 4 needs to be determined, so that the whole arrangement of the groove 4 is arranged like a plum blossom shape, and the distance between adjacent grooves is not more than 10 m. The groove repair digging position is determined according to the divided blocks 3, namely the position of the groove 4 on the upper layer and the position of the groove 4 on the lower layer are not in a row, and every other block 3 is provided with one groove 4 along the direction of the slope surface 1.
4) And after the position of the groove 4 is determined, the groove 4 is excavated again. The groove 4 is excavated by a rock drill, and the size of the excavated area is 0.5-3 m2The depth needs to be larger than 20cm, the shape of the groove 4 meets the shape of a reverse slope groove by combining the landform characteristics of an excavated part, and the grooves are different in shape. The existing groove 4 of the slope after blasting or natural weathering is formed with an area larger than 0.5-3 m2The groove is not required to be excavated by the groove 4, and only a rock drill is required to process the groove into a reverse slope groove; if the area is less than 0.5 to 3m2Expanding and digging the original groove to 0.5-3 m2Expanding and diggingThe subsequent grooves 4 also need to be reverse slope grooves.
5) And (5) paving a plant-growing net pad in the processed reverse slope groove. The vegetation net cushion 5 is tightly attached to the rock surface and covers the grooves 4 completely, the vegetation net cushion is fixed on the rock surface through expansion bolts 6 with the thickness of Golgin, the fixed distance is 10-30 cm, and the vegetation net cushion 5 is tightly attached to the rock surface.
6) Lay and plant the packing of soil 7 after the net pad, fill and spread the grass seeds after accomplishing, lay and put and erode grass curtain 8 in order to prevent that rainwater erode from taking away and plant the native, on the scour prevention grass curtain is fixed in domatic rock mass through U shaped nail 9, carry out the later stage maintenance at last, thereby treat that vegetation 10 grows up and reach the effect of replying green.
The micro-terrain plot division mode is that a slope surface is divided into square grids by using a paint line.
The plant-growing net pad 5 is connected with the slope body 2 through an expansion bolt 6 and is tightly attached to the slope body 2; the scouring straw mat 8 is fixed on the slope body 2 through a U-shaped nail 9.
The depth of the trench 4 needs to be greater than 20 cm.
Drawings
Fig. 1 is a schematic diagram of block division and trench layout.
FIG. 2 is a schematic view of the connection of a reverse slope groove sample with a plant net pad and an anti-scouring straw mat.
Fig. 3 is a schematic view of slope greening.
In the figure: 1. slope 2, slope 3, block 4, reverse slope groove 5, vegetation net pad 6, expansion bolt 7, planting soil 8, scour prevention grass curtain 9, U-shaped nail 10, vegetation。
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
The overall technical scheme of the invention is that unevenly distributed grooves are often formed on the slope surface after blasting construction or natural weathering of the rocky side slope, the grooves on the slope surface are arranged in a plum blossom-like shape by fully utilizing the existing natural topography and topography landform to additionally dig the grooves on the slope surface, the additional digging of the grooves can be carried out on the parts easy to dig by using a rock drill, and the digging area is 0.5-3 m2The depth is required to be more than 20cm,the shape of the groove can be combined with the landform characteristics of the excavated part to ensure that the shape of the reverse slope groove is satisfied. After the slot excavation is accomplished, lay the vegetation mat in domatic natural formation and the slot after the excavation, the vegetation mat needs to make it hug closely the rock face with expansion bolts is fixed to carry out the packing of planting soil on the vegetation mat, broadcast grass seeds after the packing is accomplished, lay scour prevention grass curtain, put scour prevention grass curtain and fix in domatic with U type nail, carry out the maintenance at last, thereby treat that the vegetation grows up and reach the effect of replying green.
The first is a micro-terrain small-area division method for high cutting slope of rock quality. After the conditions of the whole stability of the rocky slope and the existence of grooves formed by natural weathering or after slope blasting are met, the conventional micro terrains are fully utilized for groove repair excavation, and the distance between adjacent grooves is not more than 10m, so that the grooves are arranged on the slope in a plum blossom-like shape.
And secondly, a rock slope micro-terrain vegetation groove construction technology. The groove is excavated by a rock drill, and the size of the excavated area is 0.5-3 m2The depth is more than 20cm, the shape of the groove can meet the shape of a reverse slope groove by combining the landform characteristics of an excavated part, and the groove shapes are different. If the grooves formed on the slope surface after blasting or natural weathering do not satisfy the above conditions, a rock drill is required to perform renovation to satisfy the above conditions.
1) Clear up domatic 1, clear up debris and the not hard up rock mass on domatic 1.
2) The micro-terrain subdivisions are divided on the slope surface of the slope body 2 by dividing the slope surface into square grids of 3 x 3m by using paint lines. The division of the block 3 can provide basis for the position of the trench 4, so that the requirement that the distance between the trenches is not more than 10m can be ensured, and the overall arrangement of the trenches 4 after the trenches 4 are additionally excavated can be ensured to be arranged like a plum blossom. For the requirement that the distance between the grooves 4 is not more than 10m, the situation that every other groove 4 is arranged on the blocks along the slope direction is shown; for the requirement that the whole arrangement is in a plum-blossom-like shape, the arrangement is in the direction of a vertical slope surface on a block, namely, the position of the groove which is dug in a repairing way is required to meet the condition that the position of the groove 4 on the upper layer is not in the same row with the position of the groove 4 on the lower layer as much as possible, and the arrangement requirement of the groove 4 can be met by the method. (the block division and trench arrangement are schematically shown in FIG. 1.)
3) After the position of the groove is determined, the groove is excavated by a rock drill, and the size of the excavation area is 0.5-3 m2The depth is more than 20cm, and the shape of the groove 4 can meet the shape of a reverse slope groove by combining the landform characteristics of an excavation part. The shape of the grooves varies. The existing groove 4 of the slope after blasting or natural weathering is formed with an area larger than 0.5-3 m2The groove can be processed into a reverse slope groove by a rock drill without excavating the groove 4; if the area is smaller than the interval, the original groove needs to be enlarged and dug until the area is larger than the interval, and the groove 4 after enlarged and dug needs to be a reverse slope groove. The depth of the trench 4 needs to be greater than 20 cm.
4) And (3) paving a plant-growing net cushion 5 in the processed reverse slope groove, wherein the plant-growing net cushion 5 needs to be tightly attached to the rock surface and completely cover the groove 4, the plant-growing net cushion 5 needs to be fixed on the rock surface by an expansion bolt 6 with the thickness of Golgi in order to enable the plant-growing net cushion 5 to be tightly attached to the rock surface, the fixed distance is 10-30 cm, and the plant-growing net cushion 5 is closely attached to the rock surface.
5) Lay and plant the packing of soil 7 after the net pad, fill and spread the grass seeds after accomplishing, lay and put and erode grass curtain 8 in order to prevent that rainwater erode from taking away and plant the native, on the scour prevention grass curtain is fixed in domatic rock mass through U shaped nail 9, carry out the later stage maintenance at last, thereby treat that vegetation 10 grows up and reach the effect of replying green. The schematic diagram after greening is shown in fig. 3.

Claims (4)

1. A micro-terrain plot regreening method for a high and steep rocky slope is characterized by comprising the following steps: the method comprises the following steps:
1) cleaning the slope surface, and cleaning sundries and loose rock blocks on the slope surface;
2) after the slope surface is cleaned, carrying out micro-terrain zoning on the slope surface of the slope body to form each block;
3) after the block division is finished, the complementary excavation position of the groove needs to be determined, so that the whole arrangement of the groove is in a plum blossom-like arrangement; determining the complementary digging positions of the grooves according to the divided blocks, namely the positions of the grooves in the upper layer and the positions of the grooves in the lower layer are not in a row, and every other block is provided with one groove along the slope;
4) after the groove repairing and digging position is determined, repairing and digging the groove; the groove is excavated by a rock drill, the shape of the groove meets the shape of a reverse slope groove by combining the landform characteristics of the excavated part, and the shapes of the grooves are different;
5) paving a plant net pad in the processed reverse slope groove; the vegetation net pad is tightly attached to the rock surface, the groove is completely covered, and the vegetation net pad is fixed on the rock surface by an expansion bolt with the thickness of Golgin, so that the vegetation net pad is tightly attached to the rock surface;
6) lay and plant the packing of soil after the mat, fill and scatter the grass seeds after accomplishing, lay and put and erode the grass curtain and take away planting native in order to prevent that rain wash from taking away, on the scour prevention grass curtain is fixed in domatic rock mass through the U shaped nail, carry out the later stage maintenance at last, thereby treat that the vegetation grows up and reach the effect of replying green.
2. The high cliff side slope microtopography plot regreening method of claim 1, characterized in that: the micro-terrain plot division mode is that a slope surface is divided into square grids by using a paint line.
3. The high cliff side slope microtopography plot regreening method of claim 1, characterized in that: the plant net pad is connected with the slope body through an expansion bolt and is tightly attached to the slope body; the scouring straw curtain is fixed on the slope body through a U-shaped nail.
4. The high cliff side slope microtopography plot regreening method of claim 1, characterized in that: the depth of the groove needs to be more than 20 cm.
CN202011569713.1A 2020-12-26 2020-12-26 High-steep rocky slope micro-terrain small-region re-greening method Pending CN112695776A (en)

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CN202011569713.1A CN112695776A (en) 2020-12-26 2020-12-26 High-steep rocky slope micro-terrain small-region re-greening method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011569713.1A CN112695776A (en) 2020-12-26 2020-12-26 High-steep rocky slope micro-terrain small-region re-greening method

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001090080A (en) * 1999-09-20 2001-04-03 Kumagai Gumi Co Ltd Vegetation pile and greening construction method for face of slope using the same
CN102535484A (en) * 2011-12-06 2012-07-04 北京北林绿源生态技术研究院有限责任公司 Greening method of cement mortar anchoring and shotcreting side slope
CN108738892A (en) * 2018-08-10 2018-11-06 大连久鼎生态流域治理开发有限公司 Rock side slope embeds tree planting structure and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001090080A (en) * 1999-09-20 2001-04-03 Kumagai Gumi Co Ltd Vegetation pile and greening construction method for face of slope using the same
CN102535484A (en) * 2011-12-06 2012-07-04 北京北林绿源生态技术研究院有限责任公司 Greening method of cement mortar anchoring and shotcreting side slope
CN108738892A (en) * 2018-08-10 2018-11-06 大连久鼎生态流域治理开发有限公司 Rock side slope embeds tree planting structure and method

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Application publication date: 20210423