CN109306676B - Construction method of landslide repairing structure - Google Patents
Construction method of landslide repairing structure Download PDFInfo
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- CN109306676B CN109306676B CN201811347037.6A CN201811347037A CN109306676B CN 109306676 B CN109306676 B CN 109306676B CN 201811347037 A CN201811347037 A CN 201811347037A CN 109306676 B CN109306676 B CN 109306676B
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000004746 geotextile Substances 0.000 claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 7
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 6
- 238000009412 basement excavation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000005246 galvanizing Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 229920006052 Chinlon® Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009430 construction management Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- 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
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Revetment (AREA)
Abstract
The invention relates to a construction method of a landslide restoration structure, which mainly comprises a bank slope, sand cobbles, gabions above a normal water level, inverted filter geotextile, planting soil, a concrete prefabricated frame beam, a grass planting revetment, a precast slab, a normal water level line, a fixed pile top plate, an outer-coated film bag grouting gabion locking pin, a dredging groove, a timber pile, L steel plates, steel nails, U-shaped steel plates, a gabion embedded fixing rod, a concrete prefabricated frame beam preformed hole, a gabion below the normal water level, a steel plate and a gabion groove.
Description
Technical Field
The invention relates to the field of hydraulic engineering, in particular to a construction method of a landslide repairing structure, which is suitable for construction of landslide repairing.
Background
Reservoir bank collapse causes the bank line to move backwards, so that cultivated land around the reservoir area is reduced year by year. And after the cultivated land of local villagers collapses, the living conditions are worse, farmers are hard to bear, and huge economic loss is caused to villages and towns around the bank collapse area, which is a social problem affecting the stability of the periphery of the area. Meanwhile, due to bank collapse, a large amount of soil bodies collapse and are stored in a warehouse to generate siltation, and the storage capacity is reduced.
In actual construction, constructors need to supervise construction quality, construct according to the standard of construction design, strengthen construction management, improve the construction quality of the landslide restoration structure, and ensure the integrity of the restoration of the whole slope. Thereby better serving society.
Disclosure of Invention
The invention aims to provide a construction method of a landslide repairing structure, which aims at solving the problem of landslide repairing construction and meeting the requirement of structure construction.
In order to achieve any of the above objects, the present invention provides a construction method of a landslide restoration structure, including:
step one, base layer treatment: after the excavation of the bank slope is finished, sand and pebbles are backfilled and rolled;
filling the gabion below the normal water level on the ground, embedding a fixing pile bottom plate and a timber pile in the gabion below the normal water level, connecting the fixing pile bottom plate with the timber pile (through an L-shaped steel plate, a U-shaped steel plate and steel nails, hoisting the gabion to a position below the normal water level after filling pebbles, and inserting the timber pile into soil;
step three, constructing the gabion above the normal water level: filling the gabion above the normal water level in situ on the slope surface, embedding a steel plate in the gabion above the normal water level, and welding a gabion embedded fixing rod on the steel plate;
step four, constructing the concrete prefabricated frame beam and the slope surface: hoisting the concrete prefabricated frame beam to a designed position, inserting a gabion pre-embedded fixed rod into a preformed hole of the concrete prefabricated frame beam on the concrete prefabricated frame beam, and laying planting soil in a frame groove on the concrete prefabricated frame beam to plant grass and protect slope; and
step five, construction of outer-packing film bag grouting gabion locking feet: and excavating a dredging and excavating groove arranged on the outer side of the timber pile, wrapping a geotextile bag on the outer side of the gabion, hoisting the gabion to the dredging and excavating groove, and performing post-grouting to form a grouting gabion locking pin wrapped with a film bag.
In some embodiments, the method comprises the following steps: the slope is maintained in time, and the greening effect is guaranteed.
In some embodiments, in the second step, the L-type steel plate is disposed at a position where the fixing pile base plate is connected with a single timber pile, the U-type steel plate is disposed at a position where the fixing pile base plate is connected with two timber piles, and the steel nail is inserted into the fixing pile base plate and the timber pile to connect the fixing pile base plate and the timber pile.
In some embodiments, in the fifth step, the section of the dredging groove is an isosceles trapezoid, and the geotextile bag is a nylon synthetic fiber filament membrane bag, is wrapped outside the gabion, is fluffy, and is expanded after grouting.
In some embodiments, the steel wire surfaces of the gabion below the normal water level and the gabion above the normal water level are protected by hot galvanizing.
In some embodiments, the upper part of the gabion above the normal water level is paved with the anti-filtration geotextile.
In some embodiments, in the first step, the rolling lamination thickness is 30-50 cm; in the second step and the third step, the particle diameter of the filled pebbles in the gabion is more than 80mm
The invention has the following characteristics and beneficial effects:
(1) constructing the gabion below a normal water level, embedding a fixing pile bottom plate and a timber pile, connecting the embedded fixing pile bottom plate and the timber pile through an L-shaped steel plate, a U-shaped steel plate and steel nails, loading pebbles, hoisting to a position below the water surface, and inserting the timber pile into soil, so that the anti-scouring capability of the gabion is effectively guaranteed;
(2) the concrete prefabricated sash beam is provided with the concrete prefabricated sash beam preformed hole, and the gabion embedded fixed rod is inserted into the concrete prefabricated sash beam preformed hole, so that the integrity of the sash beam is improved;
(3) the dredging and excavating groove is arranged on the outer side of the wooden pile, the gabion is placed in the dredging and excavating groove, the geotextile bag is wrapped on the outer side of the gabion, and grouting is carried out after the gabion locking legs are formed by wrapping a membrane bag and grouting, so that the anti-scouring capability of the gabion is improved.
Drawings
Fig. 1 is a schematic cross-sectional view of a landslide repair structure according to an embodiment of the invention.
Fig. 2 is a schematic view illustrating connection of a timber pile of a landslide repair structure to a bottom plate of a fixing pile according to an embodiment of the present invention.
Fig. 3 is a schematic plan view of a revetment of a landslide repair structure according to an embodiment of the present invention.
Fig. 4 is a schematic plan view of the slope a-a of fig. 3.
Fig. 5 is a schematic plan view of a concrete precast lattice beam of a landslide repair structure according to an embodiment of the present invention.
Fig. 6 is a construction flow chart of a landslide repair structure construction method according to an embodiment of the present invention.
In the figure, 1-bank slope, 2-sand cobble, 3-gabion above normal water level, 4-inverse filter geotextile, 5-planting soil, 6-concrete prefabricated frame beam, 7-grass planting slope protection, 8-prefabricated slab, 9-normal water level line, 10-fixed pile top plate, 11-outer coating bag grouting gabion locking pin, 12-dredging groove, 13-timber pile, 14-L type steel plate, 15-steel nail, 16-U type steel plate, 17-land boundary line, 18-gabion pre-embedded fixed rod, 19-concrete prefabricated frame beam seam, 20-concrete prefabricated frame beam preformed hole, gabion below 21-normal water level, 22-steel plate and 23-frame groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Construction technical requirements of shore slope excavation, gabion hoisting and the like in the embodiment of the invention are not repeated, the embodiment of the invention is mainly explained, and the invention is further described in detail by embodiments with reference to the accompanying drawings, and the description is not limited to the following embodiments.
As shown in fig. 1 to 5, a schematic structural diagram of a landslide restoration structure according to an embodiment of the present invention is shown, the landslide restoration structure including a bank slope (1), sand and pebbles (2), a gabion (3) above a normal water level, an inverse filter geotextile (4), planting soil (5), a concrete prefabricated lattice beam (6), a grass planting revetment (7), a precast slab (8), a normal water level line (9), a fixing pile bottom plate (10), an outer coated bag grouting gabion locking foot (11), a dredging groove (12), a timber pile (13), L type steel plates (14), steel nails (15), U type steel plates (16), a land and water boundary (17), a gabion embedded fixing rod (18), a concrete prefabricated lattice beam seam (19), a concrete prefabricated lattice beam preformed hole (20), a gabion (21) below a normal water level, steel plates (22), and a lattice groove (23).
The landslide repairing structure is arranged on a bank slope (1), wherein sandy gravel (2) is paved on the bank slope (1) and comprises a gabion (3) above a normal water level and a gabion (21) below the normal water level, wherein the gabion (3) above the normal water level refers to the gabion above a normal water level (9), correspondingly, the gabion (21) below the normal water level refers to the gabion below the normal water level (9), the gabion (21) below the normal water level is connected and fixed on the bank slope (1), and the gabion (3) above the normal water level is provided with reversed filter geotextile (4) and a concrete prefabricated frame beam (6).
Fill subaerial below the normal water level gabion (21), pre-buried spud pile bottom plate (10) and stake (13) of below the normal water level gabion (21), spud pile bottom plate (10) with stake (13) are connected through L shaped steel board (14), U shaped steel board (16) and steel nail (15), specifically speaking, L shaped steel board (14) set up the position that spud pile bottom plate (10) and single stake (16) are connected, U shaped steel board (16) set up the position that spud pile bottom plate (10) and two stakes (16) are connected, steel nail (15) insert spud pile bottom plate (10) with stake (16) are in order to connect spud pile bottom plate (10) with stake (16).
After filling pebbles, hoisting the pebbles to a position below the water level (9), and inserting the wood piles (13) into soil; and the gabion (21) above the normal water level is filled in situ on the slope surface, a steel plate (22) is embedded, and a gabion embedded fixing rod (18) is welded on the steel plate (22).
Anti-geotechnological cloth (4) and the prefabricated frame check roof beam of concrete (6) are laid on gabion (21) upper portion more than normal water level, prefabricated frame check roof beam of concrete (6) form frame groove (23) that a plurality of intervals set up, particularly, prefabricated frame check roof beam of concrete (6) set up prefabricated frame check roof beam preformed hole of concrete (20), insert in the pre-buried dead lever of gabion (18) in the prefabricated frame check roof beam preformed hole of concrete (20), lay planting soil (5) and plant grass bank protection (7) in frame check groove (23).
The dredging and excavating groove (12) is arranged on the outer side of the timber pile (13), a gabion is placed in the dredging and excavating groove (12), the outer side of the gabion is wrapped with a geotextile bag, and grouting is carried out to form an outer film bag grouting gabion locking pin (11).
As shown in fig. 6, the construction method of the landslide repair structure is as follows, wherein the structure of the landslide repair structure is as follows:
step one, base layer treatment: after the excavation of the bank slope (1) is finished, sand and pebbles (2) are backfilled and rolled;
in the first step, the bank slope (1) utilizes the excavator to clear up the soil and silt that float of bank collapse department, and the sand cobble (2) adopts 260 type excavator loading, adopts dump truck to transport to the scene, and the dump truck directly unloads, and 1 loader paves, and it is closely knit to need to adopt the 16TY road roller to carry out the static rolling when paving, and the thickness of rolling layering is 30 ~ 50cm, effectively improves the stability and the bearing capacity of bank slope basic unit.
And step two, constructing the gabion below the normal water level, namely filling the gabion on the ground, embedding the fixing pile bottom plate (10) and the timber pile, connecting the embedding fixing pile bottom plate (10) and the timber pile through an L-shaped steel plate (14), a U-shaped steel plate (16) and steel nails (15), hoisting the gabion to a position below the water surface after filling pebbles, and inserting the timber pile (13) into soil.
In the second step, the size of the gabion (21) is 2000mm × 1000mm × 500mm, the aperture is 60mm × 800mm, the surface of a steel wire is protected by hot galvanizing, the diameter of a mesh wire is 2.8mm, the diameter of a side wire is 3.5mm, the particle size of pebbles filled in the gabion is larger than 80mm, the L-shaped steel plate (14) is arranged at the position where the fixing pile base plate (10) is connected with a single timber pile (16), the U-shaped steel plate (16) is arranged at the position where the fixing pile base plate (10) is connected with two timber piles (16), the steel nail (15) is inserted into the fixing pile base plate (10) and the timber pile (16) to connect the fixing pile base plate (10) and the timber pile (16), the thicknesses of the L-shaped steel plate (14) and the U-shaped steel plate (16) are 5mm and 50mm, the connection length of the fixing pile base plate (10) is 100mm, the connection length of the timber pile (16) is 100mm, and the connection length is 100mm, so that the stability of the fixing pile base plate (10) and the timber pile.
Step three, constructing the gabion above the normal water level: and (3) in-situ filling on the slope, pre-burying a steel plate (22), and welding a gabion pre-buried fixing rod (18) on the steel plate (22).
In the third step, the diameter of the gabion embedded fixing rod (18) is 28mm, the length of the gabion embedded fixing rod is 320mm, and the size of the steel plate (22) is 5mm, × 300mm, × 200mm and 35200 mm.
Step four, constructing the concrete prefabricated frame beam and the slope surface: hoisting the concrete prefabricated frame beam (6) to a designed position, inserting the gabion embedded fixing rod (18) into the concrete prefabricated frame beam preformed hole (20), and laying planting soil (5) and grass planting protection slope (7) in the frame groove (23).
In the fourth step, the prefabricated sash beam (6) is 1600mm × 1400mm × 250mm in size, the sash groove (23) is 500mm × 400mm in size, and the prefabricated sash beam is provided with a hole (20) with the diameter of 30mm and the depth of 180 mm.
Step five, construction of outer-packing film bag grouting gabion locking feet: the outer side of the wooden pile (13) is provided with a dredging groove (12), the outer side of the gabion is wrapped with a geotextile bag and hoisted to the dredging groove (12), and then grouting is performed to form an outer film bag grouting gabion locking pin (11).
In the fifth step, the cross section of the dredging and excavating groove (12) is in an isosceles trapezoid shape, the upper bottom of the dredging and excavating groove is 1200mm wide, the lower bottom of the dredging and excavating groove is 1000mm wide, and the height of the dredging and excavating groove is 1000 mmm; the geotextile bag is made of synthetic fiber filament membrane bags such as polypropylene fibers, polyester fibers and chinlon fibers, wraps the outside of the gabion (21), is fluffy, expands after grouting, and has a stronger anti-scouring effect.
Step six, maintenance: the slope is maintained in time, and the greening effect is guaranteed.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (7)
1. The construction method of the landslide restoration structure is characterized by comprising the following steps:
step one, base layer treatment: after the excavation of the bank slope (1) is finished, sand and pebbles (2) are backfilled and rolled;
filling the gabion (21) below the normal water level on the ground, embedding a fixing pile bottom plate (10) and a timber pile (13) in the gabion (21) below the normal water level, connecting the fixing pile bottom plate (10) and the timber pile (13) through an L-shaped steel plate (14), a U-shaped steel plate (16) and steel nails (15), hoisting the fixing pile bottom plate and the timber pile (13) to a position below the normal water level (9) after filling pebbles, and inserting the timber pile (13) into soil;
step three, constructing the gabion (3) above the normal water level: filling the gabion (3) above the normal water level in situ on the slope, pre-burying a steel plate (22) in the gabion (3) above the normal water level, and welding a gabion pre-buried fixing rod (18) on the steel plate (22);
step four, constructing the concrete precast frame beam (6) and the slope: hoisting a concrete prefabricated frame beam (6) to a designed position, inserting a gabion pre-embedded fixed rod (18) into a concrete prefabricated frame beam preformed hole (20) on the concrete prefabricated frame beam (6), and paving planting soil (5) and a grass planting protection slope (7) in a frame groove (23) on the concrete prefabricated frame beam (6); and
step five, construction of outer-packing film bag grouting gabion locking feet: the outer side of the wooden pile (13) is provided with a dredging groove (12), the outer side of the gabion is wrapped with a geotextile bag and is hoisted to the dredging groove (12), and then grouting is carried out to form an outer film bag grouting gabion locking pin (11).
2. The construction method of a landslide repair structure according to claim 1, comprising:
step six, maintenance: the slope is maintained in time, and the greening effect is guaranteed.
3. The construction method of a landslide repair structure according to any one of claims 1 or 2, wherein in the second step, the L-type steel plate (14) is provided at a position where the pin pile base plate (10) and a single timber pile (16) are connected, the U-type steel plate (16) is provided at a position where the pin pile base plate (10) and two timber piles (16) are connected, and the steel nail (15) is inserted into the pin pile base plate (10) and the timber pile (16) to connect the pin pile base plate (10) and the timber pile (16).
4. The construction method of the landslide repair structure according to claim 3, wherein in the fifth step, the cross section of the dredging and excavating groove (12) is in an isosceles trapezoid shape, the geotextile bag is a nylon synthetic fiber filament membrane bag, is wrapped outside the gabion, is fluffy and is expanded after grouting.
5. The construction method of the landslide restoration structure according to claim 4, wherein the steel wire surfaces of the gabion (21) below the normal water level and the gabion (3) above the normal water level are protected by hot galvanizing.
6. The construction method of the landslide repair structure according to claim 5, wherein an anti-filtration geotextile (4) is laid on the upper portion of the gabion (21) above the normal water level.
7. The construction method of the landslide repair structure according to any one of claims 1 or 2, wherein in the first step, the thickness of the rolling lamination is 30-50 cm; in the second step and the third step, the particle size of the filled pebbles in the gabion is more than 80 mm.
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| CN201811347037.6A CN109306676B (en) | 2018-11-13 | 2018-11-13 | Construction method of landslide repairing structure |
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| CN201811347037.6A CN109306676B (en) | 2018-11-13 | 2018-11-13 | Construction method of landslide repairing structure |
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| CN112343004A (en) * | 2020-10-29 | 2021-02-09 | 长江勘测规划设计研究有限责任公司 | Prefabricated water-permeable ecological foot groove structure for revetment engineering and construction method |
| CN113356140A (en) * | 2021-06-25 | 2021-09-07 | 中铁第四勘察设计院集团有限公司 | Slope protection building block, ecological slope protection suitable for rain source type river channel and construction method of ecological slope protection |
| CN115233745B (en) * | 2022-07-26 | 2023-06-30 | 中交三航局第三工程有限公司 | Geotextile wrapping method for preventing permeation around pile body of pile in revetment structure |
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| CN205024644U (en) * | 2015-09-04 | 2016-02-10 | 中科路域（北京）生态投资有限公司 | Modular ecological revetment structure |
| CN106759104A (en) * | 2016-12-29 | 2017-05-31 | 浙江大学城市学院 | Ecological slope protection structure and construction method |
| CN107513983A (en) * | 2017-10-09 | 2017-12-26 | 杨勇 | A kind of honeycomb cell compartment type is used for dykes and dams ecological management and rainwater purification system and its construction method |
| CN108221861A (en) * | 2018-01-23 | 2018-06-29 | 浙江建设职业技术学院 | A kind of ecological slope protection structure to prevent erosion and its construction method |
| CN108640409A (en) * | 2018-04-16 | 2018-10-12 | 浙江工业大学 | A kind of combined biological shore protection and its construction method |
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