CN110644507A - Method for building mortar rubble side slope retaining wall - Google Patents
Method for building mortar rubble side slope retaining wall Download PDFInfo
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- CN110644507A CN110644507A CN201910842770.3A CN201910842770A CN110644507A CN 110644507 A CN110644507 A CN 110644507A CN 201910842770 A CN201910842770 A CN 201910842770A CN 110644507 A CN110644507 A CN 110644507A
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- masonry
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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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- 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
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- General Life Sciences & Earth Sciences (AREA)
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- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The invention provides a method for building a mortar rubble side slope retaining wall, which comprises the steps of digging a foundation trench, preparing mortar, finishing stone, building a wall body and hooking a building seam; by adopting the technical scheme provided by the invention, the retaining wall body adopts a multi-layer masonry structure, the outer dimension and the quality of the mortar rubble are selected, the construction process is reasonably arranged, the mortar rubbles with different specifications and shapes are arranged at different positions, the erosion action of underground water in the soil body is weakened through the consumption of the multi-layer masonry layers, the masonry joints are densely filled, the accumulation action of the underground water at the bottom of the drainage ditch is reduced, the heat exchange process of the soil body at the bottom of the drainage ditch is reduced, the probability of frost heaving benefits in the soil body of the roadbed is reduced, the stability of the mortar rubble foundation is ensured, the service life of the roadbed is effectively prolonged, in addition, the side wall of the roadbed is leveled, and the appearance effect of the roadbed is improved.
Description
Technical Field
The invention relates to the technical field of road construction, in particular to a method for building a protective wall of a grouted rubble side slope.
Background
Along with the development of economy, the construction and construction of a road traffic system are more and more intensive, the construction of roads is gradually extended to mountainous areas at the edges, and due to the fact that the mountainous areas are high in altitude and complex in geographical conditions, a lot of difficulties are brought to the construction and construction of the roads. Taking a Pingtang county in Guizhou province in the southwest of China as an example, the county is in a subtropical monsoon humid climate region, has no severe cold in winter and no severe summer heat in summer, is rich in heat, abundant in rainfall, long in frostless period and clear in four seasons. The average annual temperature in the county is 17 ℃, the average hottest month is 25.4 ℃, the extreme lowest temperature is-7.7 ℃, the extreme highest temperature is 38.1 ℃, the annual average sunshine duration is 1316.9 hours, the annual average precipitation is 1259 mm, the annual frost period is 311 days, and the types of landforms are mainly erosion peak forest, valley and low and medium mountain structure erosion and erosion landforms. The geological feature geological thermal stability of the landform is poor, the stability of mountain structures is different, and the road side slope is easy to have the dangers of local collapse, weathering peeling, collapse and the like, so that corresponding technical measures are required to be taken to treat the road subgrade during road construction.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for building a mortar-laid rubble side slope retaining wall.
The invention is realized by the following technical scheme.
The invention provides a method for building a grouted rubble side slope retaining wall, which comprises the following steps:
the method comprises the following steps: digging a foundation trench: digging a foundation trench along the edge of the side slope, removing all impurities in the foundation trench, and tamping the bottom of the foundation trench;
step two: preparing mortar: sequentially putting a proper amount of sand, cement and water into a stirrer in sequence, stirring for 3-5 min, and obtaining mortar at an outlet of the stirrer;
step three: stone finishing: collecting and obtaining the grouted rubble from a quarry, removing stains attached to the surface of the grouted rubble, and then soaking the grouted rubble with water;
step four: building a wall body: alternately paving mortar and mortar rubbles layer by layer in the foundation trench in the first step along the extending direction of the side surface of a road or the side surface of a slope from bottom to top by adopting a mortar sitting method, forming a masonry joint between any two adjacent mortar rubbles, filling mortar in any masonry joint, after the mortar is solidified, overlapping a plurality of mortar layers and a plurality of mortar rubbles layers to form a wall body, arranging a reserved joint at the corresponding position in each mortar layer and each mortar rubble layer during the masonry, and sequentially communicating the reserved joints arranged at the corresponding position in each mortar layer and each mortar rubble layer to form a settlement joint penetrating through the upper surface and the lower surface of the wall body when the wall body is formed by the masonry;
step five: hooking a masonry seam: and C, checking the masonry joint exposed on the outer surface of the wall body in the step four, filling a proper amount of mortar into the masonry joint, compacting, and scraping by using a scraper to ensure that any two adjacent mortar rubbles are firmly connected.
In the step one, the step of excavating the foundation trench refers to that a plurality of sections of foundation trench sections with the same depth are excavated along the edge of the side slope in sequence, and then all the foundation trench sections are connected in sequence to form a non-closed foundation trench.
And in the third step, the stone finishing further comprises the step of selecting the size of the grouted rubble, wherein the thickness of the grouted rubble used for building the wall body in the fourth step is not less than 150mm, the width of the grouted rubble is 1-1.5 times of the thickness of the grouted rubble, and the length of the grouted rubble is 1.5-3.0 times of the thickness of the grouted rubble.
And step four, the wall body is built, wherein the paving thickness of the bottom mortar layer is not less than 2 mm.
In the fourth step, the masonry wall body further comprises: and (3) leveling and correcting the outer surfaces of the built multi-layer grouted rubble layer and the mortar layer every time 2-3 layers of grouted rubble layers are built, and cleaning the outer surfaces.
In the fourth step, the masonry wall body further comprises: and any two adjacent masonry seams are staggered and overlapped with each other, and the staggered distance between any two adjacent masonry seams is not less than 8 cm.
In the fourth step, the masonry wall body further comprises: the width of any masonry joint arranged along the horizontal direction is 2 cm.
In the fourth step, the masonry wall body further comprises: flat, regular masonry stones are selected from the stone material as corner stones or veneers to be placed at the corners or outer surfaces of the finally formed wall.
In the fourth step, the masonry wall body further comprises: the distance between any two adjacent settlement joints is 10-15 m, the width of each settlement joint is 2-3 cm, and the settlement joints are filled with daub, asphalt hemp threads, asphalt bamboo velvet or wood boards coated with asphalt, and the filling depth is not less than 15 cm.
In the fourth step, the masonry wall body further comprises: when the grouted rubble is built, a plurality of drainage holes are preset in each layer of the grouted rubble layer, the arrangement positions of the drainage holes on any two adjacent layers of the grouted rubble layer are staggered with each other, and the distance between any two adjacent drainage holes is 2-3 m.
The invention has the beneficial effects that: by adopting the technical scheme provided by the invention, the retaining wall body adopts a multi-layer masonry structure, the outer dimension and the quality of the mortar rubble are selected, the construction process is reasonably arranged, the mortar rubbles with different specifications and shapes are arranged at different positions, the erosion action of underground water in the soil body is weakened through the consumption of the multi-layer masonry layers, the masonry joints are densely filled, the accumulation action of the underground water at the bottom of the drainage ditch is reduced, the heat exchange process of the soil body at the bottom of the drainage ditch is reduced, the probability of frost heaving benefits in the soil body of the roadbed is reduced, the stability of the mortar rubble foundation is ensured, the service life of the roadbed is effectively prolonged, in addition, the side wall of the roadbed is leveled, and the appearance effect of the roadbed is improved.
Drawings
FIG. 1 is a flow chart of the construction process of the present invention.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
The invention provides a method for building a masonry rubble side slope retaining wall, which comprises the following steps as shown in figure 1:
the method comprises the following steps: digging a foundation trench: digging a foundation trench along the edge of the side slope, removing all impurities in the foundation trench, and tamping the bottom of the foundation trench; furthermore, the excavation of the foundation trench refers to that a plurality of foundation trench sections with the same depth are excavated along the side slope edge in sequence, and then all the foundation trench sections are connected in sequence to form a non-closed foundation trench. The length of the basic groove section is 15 m-20 m.
Step two: preparing mortar: sequentially putting a proper amount of sand, cement and water into a stirrer in sequence, stirring for 3-5 min, and obtaining mortar at an outlet of the stirrer;
step three: stone finishing: collecting and obtaining grouted rubbles from a quarry, removing stains attached to the surfaces of the grouted rubbles, chiseling at least one side surface of the outer surfaces of the grouted rubbles into a plane, taking the plane as a masonry surface, and then soaking the grouted rubbles with water; further, the stone material finishing also comprises the step of selecting the size of the grouted rubble, the thickness of the grouted rubble used for the masonry wall body in the step four is not less than 150mm, the width of the grouted rubble is 1-1.5 times of the thickness of the grouted rubble, and the length of the grouted rubble is 1.5-3.0 times of the thickness of the grouted rubble.
Step four: building a wall body: alternately paving mortar and mortar rubbles layer by layer in the foundation trench in the first step along the extending direction of the side surface of a road or the side surface of a slope from bottom to top by adopting a mortar sitting method, forming a masonry joint between any two adjacent mortar rubbles, filling mortar in any masonry joint, after the mortar is solidified, overlapping a plurality of mortar layers and a plurality of mortar rubbles layers to form a wall body, arranging a reserved joint at the corresponding position in each mortar layer and each mortar rubble layer during the masonry, and sequentially communicating the reserved joints arranged at the corresponding position in each mortar layer and each mortar rubble layer to form a settlement joint penetrating through the upper surface and the lower surface of the wall body when the wall body is formed by the masonry;
further, the masonry wall body, wherein the bottom mortar layer is paved to a thickness not less than 2 mm. The masonry wall body still includes: and (3) leveling and correcting the outer surfaces of the built multi-layer grouted rubble layer and the mortar layer every time 2-3 layers of grouted rubble layers are built, and cleaning the outer surfaces. The masonry wall body still includes: and any two adjacent masonry seams are staggered and overlapped with each other, and the staggered distance between any two adjacent masonry seams is not less than 8 cm. The masonry wall body still includes: the width of any masonry joint arranged along the horizontal direction is 2 cm. The masonry wall body still includes: flat, regular masonry stones are selected from the stone material as corner stones or veneers to be placed at the corners or outer surfaces of the finally formed wall. The masonry wall body still includes: the distance between any two adjacent settlement joints is 10-15 m, the width of each settlement joint is 2-3 cm, and the settlement joints are filled with daub, asphalt hemp threads, asphalt bamboo velvet or wood boards coated with asphalt, and the filling depth is not less than 15 cm. The masonry wall body still includes: when the grouted rubble is built, a plurality of drainage holes are preset in each layer of the grouted rubble layer, the arrangement positions of the drainage holes on any two adjacent layers of the grouted rubble layer are staggered with each other, and the distance between any two adjacent drainage holes is 2-3 m.
Step five: hooking a masonry seam: and C, checking the masonry joint exposed on the outer surface of the wall body in the step four, filling a proper amount of mortar into the masonry joint, compacting, and scraping by using a scraper to ensure that any two adjacent mortar rubbles are firmly connected. Further, the masonry joint further comprises: selecting masonry joints with the width range of 10 mm-16 mm from all the masonry joints to carry out masonry joint hooking treatment.
By adopting the technical scheme provided by the invention, the retaining wall body adopts a multi-layer masonry structure, the outer dimension and the quality of the mortar rubble are selected, the construction process is reasonably arranged, the mortar rubbles with different specifications and shapes are arranged at different positions, the erosion action of underground water in the soil body is weakened through the consumption of the multi-layer masonry layers, the masonry joints are densely filled, the accumulation action of the underground water at the bottom of the drainage ditch is reduced, the heat exchange process of the soil body at the bottom of the drainage ditch is reduced, the probability of frost heaving benefits in the soil body of the roadbed is reduced, the stability of the mortar rubble foundation is ensured, the service life of the roadbed is effectively prolonged, in addition, the side wall of the roadbed is leveled, and the appearance effect of the roadbed is improved.
Claims (10)
1. A method for building a mortar rubble side slope retaining wall is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: digging a foundation trench: digging a foundation trench along the edge of the bottom of the side slope, removing all impurities in the foundation trench, and tamping the bottom of the foundation trench;
step two: preparing mortar: sequentially putting a proper amount of sand, cement and water into a stirrer in sequence, stirring for 3-5 min, and obtaining mortar at an outlet of the stirrer;
step three: stone finishing: collecting and obtaining the grouted rubble from a quarry, removing stains attached to the surface of the grouted rubble, and then soaking the grouted rubble with water;
step four: building a wall body: alternately paving mortar and mortar rubbles layer by layer in the foundation trench in the first step along the extension direction of the side face of the side slope from bottom to top by adopting a mortar sitting method, forming a masonry joint between any two adjacent mortar rubbles, filling the mortar in any masonry joint, after the mortar is solidified, superposing a plurality of mortar layers and a plurality of mortar rubbles layers to form a wall body, arranging a reserved joint at the corresponding position in each mortar layer and each mortar rubble layer during the masonry, and sequentially communicating the reserved joints arranged at the corresponding position in each mortar layer and each mortar rubble layer to form a settlement joint penetrating through the upper surface and the lower surface of the wall body when the wall body is built;
step five: hooking a masonry seam: and C, checking the masonry joint exposed on the outer surface of the wall body in the step four, filling a proper amount of mortar into the masonry joint, compacting, and scraping by using a scraper to ensure that any two adjacent mortar rubbles are firmly connected.
2. A method of constructing a masonry rubble side slope retaining wall as claimed in claim 1, wherein: in the step one, the step of excavating the foundation trench refers to that a plurality of sections of foundation trench sections with the same depth are excavated along the edge of the side slope in sequence, and then all the foundation trench sections are connected in sequence to form a non-closed foundation trench.
3. A method of constructing a masonry rubble side slope retaining wall as claimed in claim 1, wherein: and in the third step, the stone finishing further comprises the step of selecting the size of the grouted rubble, wherein the thickness of the grouted rubble used for building the wall body in the fourth step is not less than 150mm, the width of the grouted rubble is 1-1.5 times of the thickness of the grouted rubble, and the length of the grouted rubble is 1.5-3.0 times of the thickness of the grouted rubble.
4. A method of constructing a masonry rubble side slope retaining wall as claimed in claim 1, wherein: and step four, the wall body is built, wherein the paving thickness of the bottom mortar layer is not less than 2 mm.
5. A method of constructing a masonry rubble side slope retaining wall as claimed in claim 1, wherein: in the fourth step, the masonry wall body further comprises: and (3) leveling and correcting the outer surfaces of the built multi-layer grouted rubble layer and the mortar layer every time 2-3 layers of grouted rubble layers are built, and cleaning the outer surfaces.
6. A method of constructing a masonry rubble side slope retaining wall as claimed in claim 1, wherein: in the fourth step, the masonry wall body further comprises: and any two adjacent masonry seams are staggered and overlapped with each other, and the staggered distance between any two adjacent masonry seams is not less than 8 cm.
7. A method of constructing a masonry rubble side slope retaining wall as claimed in claim 1, wherein: in the fourth step, the masonry wall body further comprises: the width of any masonry joint arranged along the horizontal direction is 2 cm.
8. A method of constructing a masonry rubble side slope retaining wall as claimed in claim 1, wherein: in the fourth step, the masonry wall body further comprises: flat, regular masonry stones are selected from the stone material as corner stones or veneers to be placed at the corners or outer surfaces of the finally formed wall.
9. A method of constructing a masonry rubble side slope retaining wall as claimed in claim 1, wherein: in the fourth step, the masonry wall body further comprises: the distance between any two adjacent settlement joints is 10-15 m, the width of each settlement joint is 2-3 cm, and the settlement joints are filled with daub, asphalt hemp threads, asphalt bamboo velvet or wood boards coated with asphalt, and the filling depth is not less than 15 cm.
10. A method of constructing a masonry rubble side slope retaining wall as claimed in claim 1, wherein: in the fourth step, the masonry wall body further comprises: when the grouted rubble is built, a plurality of drainage holes are preset in each layer of the grouted rubble layer, the arrangement positions of the drainage holes on any two adjacent layers of the grouted rubble layer are staggered with each other, and the distance between any two adjacent drainage holes is 2-3 m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910842770.3A CN110644507A (en) | 2019-09-06 | 2019-09-06 | Method for building mortar rubble side slope retaining wall |
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| CN201910842770.3A CN110644507A (en) | 2019-09-06 | 2019-09-06 | Method for building mortar rubble side slope retaining wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695799A (en) * | 2020-12-25 | 2021-04-23 | 中铁八局集团建筑工程有限公司 | High-altitude area grouted rubble retaining wall structure and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695799A (en) * | 2020-12-25 | 2021-04-23 | 中铁八局集团建筑工程有限公司 | High-altitude area grouted rubble retaining wall structure and construction method |
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Application publication date: 20200103 |