CN112359850B - Masonry protection structure of road engineering and construction method thereof - Google Patents
Masonry protection structure of road engineering and construction method thereof Download PDFInfo
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- CN112359850B CN112359850B CN202011195089.3A CN202011195089A CN112359850B CN 112359850 B CN112359850 B CN 112359850B CN 202011195089 A CN202011195089 A CN 202011195089A CN 112359850 B CN112359850 B CN 112359850B
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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
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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
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
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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
- A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
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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
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Revetment (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a masonry protective structure of road engineering and a construction method thereof, comprising the following steps: s1: manufacturing the grout rubble skirting wall, wherein during manufacturing, firstly, measurement lofting is carried out, then foundation pit excavation, line hanging and rubble masonry are carried out, and finally pointing and maintenance work is finished; s2: after the grouted rubble foot protection wall is manufactured, manufacturing a road shoulder wall and a retaining wall; s3: after the road shoulder wall and the retaining wall are manufactured, planting grass by using the herringbone frameworks, before planting grass, firstly performing construction preparation and measurement lofting, then performing slope cutting treatment on the roadbed slope, after slope cutting, shallowly digging a foundation pit, and then performing manual tamping work. According to the invention, through the procedures of road shoulder walls and retaining walls, herringbone framework grass planting, anchor rod lattice beam installation, anchor cable lattice beam installation, net hanging spraying and mixing vegetation slope protection, wall back filling and the like, a very good protection effect can be achieved; and the preparation process of each procedure is good, and the protective effect is good.
Description
Technical Field
The invention relates to the technical field of masonry protective structures, in particular to a masonry protective structure of road engineering and a construction method thereof.
Background
Technical measures for excavation slope treatment in engineering can be roughly divided into two major categories, namely a rigid retaining structure and a flexible retaining structure. The rigid retaining structure refers to a treatment scheme combining a masonry structure as a main part and other necessary comprehensive treatment measures as an auxiliary part. It is currently the most common treatment method. The working principle is that the dead weight of the masonry body is used for resisting the slope body losing the integral balance and the release of the super-consolidation stress generated in the excavation process. The rigid retaining structure does not allow the soil body of the retained structure to deform, and the soil body of the side slope is inevitably subjected to dry shrinkage, wet expansion and the like under the action of dry-wet circulation and water. When the expansion deformation of the soil body is large and cannot be released, large expansion pressure can be generated to damage the rigid retaining structure. The flexible supporting and retaining structure is a treatment scheme combining chemical improvement and geotextile as main materials with other necessary comprehensive treatment measures as auxiliary materials. The flexible retaining wall is characterized in that the retaining wall can bear soil pressure and allow soil body to generate certain expansion and contraction deformation so as to absorb the expansion force generated by stress release and water content change of the slope soil body caused by hyperconjugation. However, the general construction process of the flexible retaining structure is complex, the construction progress is slow, and the influence of rainwater and weather is large.
The existing side slope retaining structure is easily influenced by rainwater and weather or is damaged due to soil body shrinkage and wet expansion, and the protection performance is poor.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a building protective structure of road engineering and a construction method thereof, which effectively avoid the problem of poor protection in the prior art through the procedures of road shoulder walls and retaining walls, herringbone skeleton grass planting, anchor rod lattice beam mounting, anchor cable lattice beam mounting, net hanging spraying and mixed planting slope protection, wall back soil filling and the like.
In order to achieve the above objects and other objects, the present invention adopts the following technical solutions:
a construction method of a masonry protective structure of road engineering comprises the following steps:
s1: manufacturing the grout rubble skirting wall, wherein during manufacturing, firstly, measurement lofting is carried out, then foundation pit excavation, line hanging and rubble masonry are carried out, and finally pointing and maintenance work is finished;
s2: after the grouted rubble foot protection wall is manufactured, manufacturing a road shoulder wall and a retaining wall;
s3: after the road shoulder wall and the retaining wall are manufactured, planting grass by using the herringbone frameworks, before planting grass, firstly performing construction preparation and measurement lofting, then performing slope cutting treatment on a roadbed slope, after slope cutting, shallowly digging a foundation pit, and then performing manual tamping work;
s4: after grass planting is finished, cleaning the side slope, arranging hole positions needed by the anchor rod, then building a working platform, drilling and cleaning holes, and installing the anchor rod lattice beam;
s5: after the anchor rod lattice beam is installed, the anchor cable lattice beam is installed;
s6: arranging the slope, watering the slope, mounting a hanging net, and performing spray-seeding grass planting and film covering maintenance;
s7: and filling soil on the back of the wall.
Preferably, in step S1, when the toe is connected to the masonry stone, the connected base surfaces are roughened and filled with mortar, the exposed surface and the top of the masonry are finished with large flat stone blocks, the stone blocks are overlapped and laid in a staggered manner, the caulking positions need to be tight, the upper and lower layers of masonry stone need to be staggered to ensure the mortar is full, the exposed side of the wall surface is caulked, the wall top is plastered with mortar, a slope frame and a hanging line are arranged during construction, and a mortar cushion is laid on the slope surface from bottom to top and laid.
Preferably, in step S2, the shoulder wall and the back of the retaining wall are provided with a graded broken stone inverted filter layer of not less than 30am, the filler behind the retaining wall is sandy soil with strong water permeability, the filler behind the submerged retaining wall is made of a material with strong water permeability, the foundation pit is constructed by adopting a groove jumping construction mode, the retaining wall is buried to a depth of at least 1m below the surface line of the toe, and an expansion joint is arranged at every 5-10m and can be sewn and arranged with settlement, and the width of the expansion joint is 2 cm.
Preferably, in step S3, a drainage groove base used in grass planting of the herringbone skeleton is used for grouting rubbles, the rubbles are built by a layered setting method, the herringbone skeleton is built by about 30-50cm along with the herringbone skeleton during building, so as to ensure the overall stability of the skeleton, after the prefabricated block skeleton is built, redundant waste soil in the skeleton frame is manually cleaned, a layer of clay beneficial to the growth of grass seeds is manually laid in the stone-filled embankment and the skeleton slope protection frame, the grass planting slope is ensured to be flat, compact and moist, surface soil is manually laid, and grass seeds are sown.
Preferably, in step S4, the installation of the anchor rod lattice beam sequentially includes grouting, erecting a mold, installing a reinforcing steel bar, pouring frame beam concrete, maintaining, and removing a mold.
Preferably, in step S5, the pre-stressed anchor cables installed on the anchor cable grid beam are made of 24mm high-strength low-slack common steel strands.
Preferably, in step S6, the spray-mixed vegetation slope protection is a construction technique that after constructing a short anchor rod on a stable rock slope and laying galvanized wire nets, the mixed and uniformly mixed vegetation base material is sprayed onto the slope surface by using a special sprayer, so that the vegetation grows and develops by the base material to form the vegetation slope protection.
Preferably, in step S7, the material for filling the back of the wall is medium coarse sand.
Preferably, road engineering's building protective structure, including the ramp main part, the slope foot department of ramp main part installs grout rubble banket wall, shoulder department of ramp main part installs shoulder wall and retaining wall, be provided with the herringbone skeleton on the outer wall of ramp main part, and herringbone skeleton and grout rubble banket wall build by laying bricks or stones and be connected, the junction of grout rubble banket wall and herringbone skeleton is provided with the sluicing groove, and sluicing groove and grout rubble banket wall structure as an organic whole, the inside of herringbone skeleton is provided with the clay, the outside of clay is provided with the surface soil, the outside of surface soil is provided with the vegetable layer, the outside of vegetable layer is provided with galvanized iron wire net, and galvanized iron wire net passes through stock and ramp main part side slope fixed connection.
The invention at least comprises the following beneficial effects:
compared with the prior art, the invention has the beneficial effects that through the procedures of road shoulder walls and retaining walls, herringbone skeleton grass planting, anchor rod lattice beam mounting, anchor cable lattice beam mounting, net hanging mixed planting slope protection, wall back soil filling and the like, the multi-structure synergistic effect is realized, the structural strength of the side slope part is effectively improved, and a very good protection effect can be achieved; and the preparation process of each procedure is good, and the service life of the retaining protective structure is effectively prolonged.
Drawings
FIG. 1 is a flow chart of a construction method of a masonry protective structure of road engineering provided by the invention.
Detailed Description
The present invention is described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.
Referring to fig. 1, in an embodiment of the present invention, a construction method for a masonry protection structure of a road engineering includes the following steps:
s1: manufacturing the grout rubble skirting wall, wherein during manufacturing, firstly, measurement lofting is carried out, then foundation pit excavation, line hanging and rubble masonry are carried out, and finally pointing and maintenance work is finished;
s2: after the grouted rubble foot protection wall is manufactured, manufacturing a road shoulder wall and a retaining wall;
s3: after the road shoulder wall and the retaining wall are manufactured, planting grass by using the herringbone frameworks, before planting grass, firstly performing construction preparation and measurement lofting, then performing slope cutting treatment on a roadbed slope, after slope cutting, shallowly digging a foundation pit, and then performing manual tamping work;
s4: after grass planting is finished, cleaning the side slope, arranging hole positions needed by the anchor rod, then building a working platform, drilling and cleaning holes, and installing the anchor rod lattice beam;
s5: after the anchor rod lattice beam is installed, the anchor cable lattice beam is installed;
s6: arranging the slope, watering the slope, mounting a hanging net, and performing spray-seeding grass planting and film covering maintenance;
s7: and filling soil on the back of the wall.
In a preferred scheme, in step S1, when the toe is connected with the masonry stone, the connected base surfaces are roughened and are filled with mortar, the exposed surface and the top of the masonry are finished by large flat stones, the stones are overlapped and laid in a staggered manner, the caulking positions need to be tight, the upper and lower layers of masonry stones need to be staggered to ensure the mortar is full, the exposed side of the wall surface is subjected to pointing, the wall top is coated with the mortar, a slope frame and a hanging line are arranged during construction, and a mortar cushion layer is laid on the slope surface from bottom to top and laid.
In a preferable scheme, in step S2, the shoulder wall and the back of the retaining wall are provided with a 30am graded broken stone reverse filter layer, the filler behind the retaining wall is sandy soil with strong water permeability, the filler behind the submerged retaining wall is made of a material with strong water permeability, the foundation pit is constructed in a jumping groove excavation and jumping groove construction mode, the retaining wall is buried to a depth of at least 1m below the surface line of the toe, an expansion joint is arranged at every 5-10m, the expansion joint can be sewn and arranged with settlement, and the width of the expansion joint is 2 cm.
In a preferable scheme, in step S3, a drainage groove base used in planting grass on the herringbone skeleton is used for grouting rubbles, the rubbles are built by a layered mortar grouting method, the herringbone skeleton is built by about 30-50cm together with the herringbone skeleton during building, so as to ensure the overall stability of the skeleton, after the prefabricated block skeleton is built, redundant waste soil in the skeleton frame is manually cleaned, a layer of clay beneficial to the growth of grass seeds is manually laid in the stone-filled embankment and the skeleton slope protection frame, the grass planting slope is ensured to be flat, compact and moist, surface soil is manually laid, and grass seeds are sown.
In a preferable scheme, in step S4, the installation of the anchor rod lattice beam sequentially includes grouting, erecting a mold, installing reinforcing steel bars, pouring frame beam concrete, maintaining, and removing a mold.
In a preferable embodiment, in step S5, the pre-stressed anchor cables installed on the anchor cable lattice beam are made of 24mm high-strength low-slack common steel strands.
In a preferred embodiment, in step S6, the spray-mixed vegetation slope protection is a construction technique that after constructing a short anchor rod on a stable rock slope and laying galvanized wire nets, a special sprayer is used to spray the uniformly mixed planting base material onto the slope surface, so that the plants grow and develop by the base material to form the vegetation slope protection.
In a preferable embodiment, in step S7, the material used for filling the back of the wall is medium coarse sand.
In an optimal scheme, road engineering's protection architecture of building by laying bricks or stones, including the ramp main part, the toe of slope department of ramp main part installs grout rubble banket wall, shoulder department of ramp main part installs shoulder wall and retaining wall, be provided with the herringbone skeleton on the outer wall of ramp main part, and herringbone skeleton and grout rubble banket wall build by laying bricks or stones and be connected, the junction of grout rubble banket wall and herringbone skeleton is provided with the sluicing groove, and sluicing groove and grout rubble banket wall structure as an organic whole, the inside of herringbone skeleton is provided with the clay, the outside of clay is provided with the surface soil, the outside of surface soil is provided with the vegetable layer, the outside of vegetable layer is provided with galvanized iron wire net, and galvanized iron wire net passes through stock and ramp main part side slope fixed connection.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (2)
1. A construction method of a masonry protection structure of road engineering is characterized by comprising the following steps:
s1: manufacturing the grout rubble skirting wall, wherein during manufacturing, firstly, measurement lofting is carried out, then foundation pit excavation, line hanging and rubble masonry are carried out, and finally pointing and maintenance work is finished;
s2: after the grouted rubble foot protection wall is manufactured, manufacturing a road shoulder wall and a retaining wall;
s3: after the road shoulder wall and the retaining wall are manufactured, planting grass by using the herringbone frameworks, before planting grass, firstly performing construction preparation and measurement lofting, then performing slope cutting treatment on a roadbed slope, after slope cutting, shallowly digging a foundation pit, and then performing manual tamping work;
s4: after grass planting is finished, cleaning the side slope, arranging hole positions needed by the anchor rod, then building a working platform, drilling and cleaning holes, and installing the anchor rod lattice beam;
s5: after the anchor rod lattice beam is installed, the anchor cable lattice beam is installed;
s6: arranging the slope, watering the slope, mounting a hanging net, and performing spray-seeding grass planting and film covering maintenance;
s7: filling soil on the back of the wall;
in step S3, a sluicing groove base used in the herringbone framework grass planting is used for slurry masonry of rubbles, the rubbles are built by a layered slurry setting method, the herringbone framework is built by 30-50cm together with the herringbone framework during building, so that the overall stability of the framework is guaranteed, after the prefabricated block framework is built, redundant waste soil in the framework is manually cleaned, a layer of clay beneficial to growth of grass seeds is manually laid in a stone filling embankment and the framework slope protection frame, the grass planting slope is guaranteed to be flat, compact and moist, surface soil is manually laid, and grass seeds are sown;
in the step S6, the spray seeding grass planting is a construction technology that after a short anchor rod is constructed on a stable rock slope and a galvanized wire netting is laid and hung, a special sprayer is adopted to spray the uniformly mixed planting base material to the slope surface, so that plants grow and develop by the base material to form a plant slope protection;
through the procedures of road shoulder wall and retaining wall, herringbone skeleton grass planting, anchor rod lattice beam mounting, anchor cable lattice beam mounting, net hanging mixed planting slope protection and wall back soil filling, the multi-structure synergistic effect effectively improves the structural strength of the side slope part;
step S1, when the slope foot is connected with the masonry stone, the connected base surface is roughened and is seated with mortar, the exposed surface and the slope top of the masonry are repaired by large blocks of smooth stones, the stones are mutually staggered, overlapped and built, the caulking position needs to be tight, the upper layer masonry stone and the lower layer masonry stone need to be staggered, the mortar is ensured to be full, the exposed side of the wall surface is caulked, the wall top is plastered by the mortar, a slope frame and a hanging line are arranged during construction, and a mortar cushion layer is laid on the slope surface from bottom to top and is built;
in the step S2, the shoulder wall and the back wall of the retaining wall are provided with a graded broken stone reverse filter layer not less than 30am, the filler behind the retaining wall adopts sandy soil with strong water permeability, the filler behind the water-soaked retaining wall adopts a material with strong water permeability, the foundation pit adopts a construction mode of jumping groove excavation and jumping groove, the retaining wall is buried to a depth of at least 1m below the surface line of the toe part of the wall, expansion joints are arranged at every 5-10m, the expansion joints and the settlement joints are combined, and the joint width is 2 cm;
in the step S4, the installation of the anchor rod lattice beam sequentially comprises grouting, formwork erection, steel bar installation, frame beam concrete pouring, maintenance and formwork removal;
in the step S5, the pre-stressed anchor cables installed on the anchor cable lattice beams are made of 24mm high-strength low-relaxation common steel strands;
still include the ramp main part, the toe portion of ramp main part installs and grout rubble banket wall, shoulder portion of ramp main part installs shoulder wall and retaining wall, be provided with the herringbone skeleton on the outer wall of ramp main part, and the herringbone skeleton builds by laying bricks or stones with the rubble banket wall and is connected, the junction of grout rubble banket wall and herringbone skeleton is provided with the sluicing groove, and sluicing groove and the structure of grout rubble banket wall as an organic whole, the inside of herringbone skeleton is provided with the clay, the outside of clay is provided with the surface soil, the outside of surface soil is provided with the vegetable layer, the outside of vegetable layer is provided with galvanized iron wire net, and galvanized iron wire net passes through stock and ramp main part side slope fixed connection.
2. The construction method of masonry protective structure for road works according to claim 1, wherein in step S7, the material for said back filling is medium grit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011195089.3A CN112359850B (en) | 2020-10-30 | 2020-10-30 | Masonry protection structure of road engineering and construction method thereof |
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| CN202011195089.3A CN112359850B (en) | 2020-10-30 | 2020-10-30 | Masonry protection structure of road engineering and construction method thereof |
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| CN112359850B true CN112359850B (en) | 2021-09-10 |
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| CN113063383A (en) * | 2021-04-12 | 2021-07-02 | 中交四航局第二工程有限公司 | Displacement sensor installation method suitable for high-rockfill embankment side slope |
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| CN106013191A (en) * | 2016-07-11 | 2016-10-12 | 杭州江润科技有限公司 | Environmental-friendly grass concrete highway slope protection structure and construction method thereof |
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| CN105887898A (en) * | 2016-06-07 | 2016-08-24 | 中交第二公路勘察设计研究院有限公司 | Swell-shrink characteristic rock-soil cut slope protection method and structure |
| CN106013191A (en) * | 2016-07-11 | 2016-10-12 | 杭州江润科技有限公司 | Environmental-friendly grass concrete highway slope protection structure and construction method thereof |
| CN106088116A (en) * | 2016-08-04 | 2016-11-09 | 苏州汇诚智造工业设计有限公司 | A kind of herringbone slope protecting grass planting bricks and manufacture thereof and construction method |
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