CN114875936A - Construction method for drainage and protection of high cut slope side ditch - Google Patents
Construction method for drainage and protection of high cut slope side ditch Download PDFInfo
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- CN114875936A CN114875936A CN202210600672.0A CN202210600672A CN114875936A CN 114875936 A CN114875936 A CN 114875936A CN 202210600672 A CN202210600672 A CN 202210600672A CN 114875936 A CN114875936 A CN 114875936A
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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
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
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- 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
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention provides a construction method for drainage and protection of a high cutting side slope gutter, wherein the cutting intercepting gutter adopts a V-shaped structure, and a side slope adopts a trapezoidal structure, and the construction method comprises the following steps: construction lofting is carried out; constructing the intercepting drain; excavating the cutting soil layer by layer; adopting grouted rubble to construct a slope protection at a side slope in a preset range from the elevation of the bottom of the drainage ditch upwards; installing a water drain pipe in the grouted rubble; the side ditch is close to the slope of the roadbed one layer and is constructed by cast-in-place concrete or prefabricated panels, and the side ditch bottom is made of cast-in-place concrete. The side slope form mainly comprises main structures such as a precast concrete panel, side slope protection mortar rubbles, water drain holes, a geotextile isolation layer and the like, the cutting side slope protection and water interception and drainage effects can be effectively improved through the side ditch and slope protection combination form, and the problem that the existing V-shaped side ditch or U-shaped side ditch is scoured in transitional connection with the side slope protection is solved.
Description
Technical Field
The invention relates to the technical field of highway engineering, in particular to a construction method for drainage and protection of a high cutting slope gutter.
Background
In the highway engineering project, the side ditch drainage type of the cutting side slope is various, and can be set into a grouted U-shaped ditch or a cast-in-place U-shaped ditch, the side slope protection can adopt grass planting, grouted construction, concrete framework and grass planting and other modes, and various side slope protection methods such as a soil nailing wall and a gravity retaining wall can be adopted for the complicated section with poor side slope stability. However, the transitional connection between the V-shaped side ditch or the U-shaped side ditch and the side slope protection has a certain scouring phenomenon.
Disclosure of Invention
In view of the above, the invention provides a construction method for drainage and protection of a high cutting slope side ditch, and aims to solve the problem that the existing transitional connection of a V-shaped side ditch or a U-shaped side ditch and the side slope protection has a scouring phenomenon.
The invention provides a construction method for drainage and protection of a high cutting side slope gutter, wherein the cutting intercepting gutter adopts a V-shaped structure, and a side slope adopts a trapezoidal structure, and the construction method comprises the following steps: a measurement lofting step, namely performing construction lofting based on a designed cross section, removing sundries and surface soil, and sampling to check whether the bottom soil meets the requirement of filling roadbed materials; if the requirement is met, the excavated soil bodies are piled up in a centralized manner to carry out roadbed filling construction; a catch-up ditch construction step, wherein the catch-up ditch is constructed; an excavation step, namely excavating the cutting soil layer by layer based on the designed cross section edge line, constructing according to a mode of excavating a protective layer, and constructing a permanent intercepting ditch and then constructing a side slope protection when protecting; building block stones, namely building slope protection by using grouted rubbles at a side slope position within a preset range from the elevation of the bottom of the drainage ditch upwards, arranging a slope permeable layer at the bottom of the grouted rubbles, installing a prefabricated panel above the grouted rubbles, and sealing joints of the prefabricated panel by using mortar or epoxy resin glue; a water drain pipe installation step, namely installing a water drain pipe in the grouted rubble, penetrating the grouted rubble and being embedded into the side slope permeable layer, and paving a layer of non-woven geotextile between the side slope permeable layer and the soil layer as an isolation layer to prevent soil loss and enhance the permeable effect; and (3) a slope construction step, namely constructing the slope of the side ditch close to the roadbed by adopting cast-in-place concrete or a prefabricated panel, and leveling and longitudinally adjusting the slope of the ditch bottom by adopting the cast-in-place concrete at the ditch bottom, so that the overall stability of the prefabricated panel is improved.
Further, the construction method for the drainage and protection of the high cutting slope gutter further comprises the following steps: and (3) a seepage ditch construction step, namely when a seepage ditch or a seepage pipe exists on the roadbed of the excavation section, paving a gravel cushion layer with the thickness at least larger than 100mm at the joint of the seepage ditch and a layer of grouted rubble on the side slope, paving a C20 concrete layer to improve the stability of the slope toe of the side slope, and paving grouted rubble protection slopes on the side slope in sequence.
Furthermore, according to the construction method for drainage and protection of the high cutting slope side ditch, the infiltration pipe is arranged in the infiltration ditch, the periphery of the infiltration pipe is filled with the water permeable material, and a layer of non-woven geotextile is laid between the water permeable layer of the infiltration ditch and the soil body to serve as an isolation layer, so that the soil body is prevented from losing, and the water permeable effect is enhanced.
Further, according to the construction method for drainage and protection of the high cutting slope side ditch, the prefabricated panel is installed at the specified position by hoisting through a crane and manually matching, the slope surface of the side ditch is close to the top of one layer of the side ditch, and a water retaining block is arranged to prevent rainwater from infiltrating into the bottom of the panel and avoid influencing the service life of the drainage ditch.
Further, in the construction method for drainage and protection of the high cutting slope side ditch, if the excavation section is large, a temporary slope protection and a temporary intercepting ditch are arranged to strengthen the slope protection and the slope drainage.
Further, according to the construction method for drainage and protection of the high cutting slope side ditch, the intercepting ditch is of a prefabricated panel structure, and a layer of the intercepting ditch close to the side slope is of a mortar rubble and cast-in-place concrete structure.
Further, according to the construction method for drainage and protection of the high cutting slope side ditch, the water drain pipes are inclined outwards by a preset angle, the end parts, close to the side slope permeable layer, of the water drain pipes are at least embedded by 50mm, and the transverse distance between the water drain pipes is 1.0-1.25 m.
Further, according to the construction method for the drainage and protection of the high cut slope side ditch, a layer of geotextile is laid between the side slope permeable layer and the soil layer to serve as an isolation layer.
Further, in the construction method for drainage and protection of the side ditch of the high cutting slope, the slope permeable layer and/or the infiltration ditch permeable layer are/is a gravel layer.
Further, according to the construction method for drainage and protection of the high cutting slope gutter, capillary holes are formed in the infiltration pipe, and the diameter of the capillary holes is 4-5 mm.
The invention provides a construction method for drainage and protection of a high cutting slope side ditch, which mainly comprises main structures such as a precast concrete panel, a side slope protection mortar rubble, a drain hole, a geotextile isolation layer and the like, wherein the cutting side ditch structure form plays a great role in drainage effect, the cutting intercepting ditch adopts a V shape, and the side ditch adopts a trapezoid shape, so that the water on the slope surface can be effectively intercepted and the water can be quickly drained; the layer of the side ditch close to the side slope can be set into a precast concrete slab, and the slab can be precast by a centralized factory, produced in batches and transported to the site for installation, so that the construction production efficiency can be improved; the position close to the slope toe of the side slope is protected by grouted rubble, the height is within a certain range from the vertical height above the elevation of the bottom of the side ditch, the bottom is provided with a permeable material such as a rubble layer, then a layer of concrete is poured, the stability of the slope toe of the side slope is improved, and a water drain pipe is arranged according to the design requirement; the water drain pipe adopts a PVC pipe with holes and inclines outwards to improve the drainage effect, the inner side of the water drain pipe is embedded into the permeable layer for at least 0.15m, the permeable material can adopt gravels, and a layer of geotextile is laid between the soil body and the gravel layer to serve as an isolation layer to improve the permeable effect; when cutting is excavated, the table of the side slope is cleared firstly, then cutting excavation is carried out according to the designed cross section, temporary intercepting ditch construction can be carried out before excavation, if one-step excavation can be carried out, permanent intercepting ditch construction can be carried out, and after one-step side slope excavation, one-step protection is carried out, the slope foot and the slope protection adopt grouted rubble slope protection, so that the stability and the anti-scouring effect of the side slope are improved; the construction method can effectively improve the cutting slope protection and water intercepting and draining functions through the combination of the side ditch and the revetment, and solves the problem that the existing V-shaped side ditch or U-shaped side ditch has scouring phenomenon in the transition connection with the slope protection. In addition, compared with the prior art, the construction method has the advantages that firstly, the assembly type construction technology is fully exerted, the installation of the prefabricated panel is accelerated, the construction quality is improved, meanwhile, the effective stabilizing effect is achieved on the slope protection, and the drainage effect is obvious; meanwhile, compared with other technical processing schemes such as soil nailing walls, anchor rods and the like, the construction method is high in operability and economical.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart of a construction method for drainage and protection of a high cutting slope gutter according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a gutter and a bottom slope protection according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a side slope and a side slope protection provided in the embodiment of the present invention;
FIG. 4 is a cross-sectional view of a infiltration trench and an infiltration pipe provided in accordance with an embodiment of the present invention;
FIG. 5 is a plan view of capillary pores on the surface of a capillary tube according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a infiltration pipe provided by an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, it is a flowchart of a construction method for drainage and protection of a high cut slope gutter according to an embodiment of the present invention. As shown in the figure, the construction method comprises the following steps:
a measuring and lofting step S1, wherein construction lofting is carried out based on the design cross section, sundries and surface soil are removed, and the bottom soil quality is checked in a sampling way whether to meet the requirement of the filling roadbed material; if the requirement is met, the excavated soil bodies are piled up in a centralized manner so as to carry out roadbed filling construction.
Specifically, construction lofting is carried out according to the designed cross section, plants such as weeds or trees on the surface layer are removed, surface soil is removed, then sampling is carried out to check whether the soil quality of the bottom layer meets the requirement of filling roadbed materials, if the soil quality meets the requirement, soil bodies excavated are stacked in a concentrated mode, and then filling roadbed construction is carried out.
In the catch drain construction step S2, a catch drain is constructed.
Particularly, when cutting soil excavation is carried out on site, the cutting soil excavation often cannot be carried out in place at one time, and in order to prevent side slope scouring from influencing the stability of an excavated side slope, a water intercepting ditch is constructed in advance to meet the requirement of drainage; when the excavation section is large, temporary slope protection and a temporary intercepting ditch can be arranged to strengthen slope protection and slope drainage.
And an excavation step S3, excavating the cutting soil layer by layer based on the designed cross section edge, constructing according to a mode of excavating a protective layer, and constructing a permanent intercepting ditch and then constructing slope protection during protection.
Specifically, side lines are excavated layer by layer according to the cross section design, a layer is excavated to protect a layer, a permanent intercepting ditch is firstly made, and slope protection is made; as shown in fig. 2, the intercepting drain mainly adopts a prefabricated panel structure, so that the installation is convenient; a layer close to the side slope adopts a mortar rubble and cast-in-place concrete structure to improve the stability of the side slope; the width of the prefabricated panel structure can be not more than 500mm, the thickness is 75mm, the height is determined according to the designed opening size, and a reinforcing mesh with the thickness of 50mm 3mm is arranged to improve the overall strength of the panel.
And S4, building slope protection by using grouted rubbles at the side slope position within a preset range from the bottom elevation of the drainage ditch, setting a side slope permeable layer at the bottom of the grouted rubbles, installing a prefabricated panel above the grouted rubbles, and sealing the joint of the prefabricated panel by using mortar or epoxy resin glue.
Specifically, as shown in fig. 2 and 3, the intercepting drain is formed by combining a precast concrete panel 1 and a grouted rubble 2, and is close to the slope layer. Wherein, the grouted rubble 2 can also be grouted rubble, the masonry height of the grouted rubble 2 is that a slope is built by grouted rubble at a side slope position 1.5m above the bottom elevation of the drainage ditch, the thickness is generally 0.3m, after the construction is finished, the precast concrete panel 1 at the side is installed, and the joint of the precast concrete panel 1 can be sealed by mortar or epoxy resin glue; that is, the preset range is a height range of 1.5 m. Wherein, the excavation slope rate of the masonry protection slope of the masonry rubble 2 in the intercepting ditch and the bottom slope protection slope in the figure 2 can be 1.3; the excavation slope rate of the side slope and the masonry rubble 2 masonry protection slope in the side slope protection in the figure 3 can be 1.2 or 1.3. As shown in fig. 2 and fig. 3, a slope permeable layer 3 is arranged at the bottom of the grouted rubble 2, and the slope permeable layer 3 can be filtered by adopting broken stones. And a layer of non-woven geotextile 4 is laid between the permeable layer 3 and the soil body to be used as an isolation layer, so that the soil body is prevented from losing and the permeable effect is enhanced.
And a water drain pipe installation step S5, wherein a water drain pipe is installed in the grouted rubble and penetrates through the grouted rubble and is embedded into the side slope permeable layer, and a layer of non-woven geotextile is laid between the side slope permeable layer and the soil layer to serve as an isolation layer, so that soil body loss is prevented, and the permeable effect is enhanced.
Specifically, the drain pipe 5 is installed in the grouted rubble 2, and the drain pipe 5 may be formed of a PVC pipe having a diameter of 50mm, penetrating 300mm through the grouted rubble layer, and then buried in the water-permeable layer 3 having a thickness of at least 0.15 m. The water drain pipe 5 is required to be inclined outwards by a preset angle when being installed, the water drain capacity can be improved by adopting a slope ratio of 1V to 10H or other slope ratios, the water drain pipe 5 is required to be embedded at least 50mm close to the permeable layer 3, and the transverse distance can be set to be 1.0-1.25 m.
And S6, when the road bed of the excavation section has an infiltration ditch or an infiltration pipe, paving a gravel cushion layer with the thickness at least larger than 100mm at the joint of the infiltration ditch and a layer of grouted rubble on the side slope, paving a C20 concrete layer to improve the stability of the slope toe of the side slope, and paving grouted rubble protection slopes on the side slope in sequence.
Specifically, as shown in fig. 3, when there is a infiltration ditch or an infiltration pipe for the excavation section roadbed, in the present embodiment, the infiltration ditch 6 is arranged at the lower part of the side ditch, the structural size of the infiltration ditch 6 can be set to be 1.0m high and 0.5m wide, the infiltration pipe 7 is embedded, and the arrangement position of the infiltration ditch 6, i.e. the blind ditch is determined according to the condition of underground water. Laying a layer of broken stone cushion layer 8 with the thickness at least larger than 100mm at the joint of the infiltration ditch 6 and a layer of mortar-laid rubble 1 of the side slope, then laying a layer of C20 concrete 10 to improve the stability of the slope toe of the side slope, and then sequentially laying mortar-laid rubble 2 of the side slope for protecting the slope; in the embodiment, a C15 concrete cushion layer 9 is further laid between the gravel cushion layer 8 and the C20 concrete 10; as shown in fig. 4, a seepage pipe 7 is arranged in the seepage ditch 6, water permeable materials 11 are filled around the seepage pipe 7, a layer of non-woven geotextile is laid between the seepage ditch water permeable layer 11 and the soil body to be used as an isolation filter layer 12, so that the soil body is prevented from losing and the water permeable effect is enhanced; wherein, the seepage pipe 7 is buried in the underdrain to discharge underground pore water and drain the water to the outside of the roadbed drainage ditch; the diameter of the infiltration pipe 7 can be 50mm, as shown in fig. 5 and 6, capillary holes 71 are formed in the infiltration pipe 7 at equal intervals along the axial direction of the infiltration pipe 7, and a plurality of capillary holes 71 can be formed in the circumferential direction of the infiltration pipe 7; the pore size of the capillary pores 71 on the upper surface can be 4.0-5mm, the maximum pore size is not more than 5mm, the periphery is filled with water permeable materials (crushed stones can be adopted) to form a permeable layer of the infiltration ditch, a layer of non-woven geotextile is laid between the permeable layer of the infiltration ditch and the soil body to be used as an isolation filter layer 12, the soil body loss is prevented, and the permeable effect is enhanced. As shown in fig. 2, when there is no trench or pipe leakage in the excavation section roadbed, a gravel cushion layer 8, a C15 concrete cushion layer 9, a C20 concrete 10 and a grouted rubble 2 are laid in this order from bottom to top on the lower side of the grouted rubble 2.
And a slope construction step S7, wherein the side ditch is close to the slope of the roadbed layer and is constructed by adopting cast-in-place concrete or prefabricated panels to the side ditch close to the slope of the roadbed layer, the bottom of the side ditch adopts cast-in-place concrete, the bottom of the ditch is leveled and longitudinally adjusted to form a slope, and the overall stability of the prefabricated panels is improved.
Specifically, the side ditch is close to the slope surface of the roadbed and can be installed by cast-in-place concrete or precast slabs according to actual conditions, and the side ditch bottom is made of cast-in-place concrete, so that the ditch bottom can be leveled and longitudinally adjusted to be sloping, and the integral stability of the side ditch and the precast panel is improved; the prefabricated panel can be installed at a specified position by adopting hoisting of a crane and manual matching. In this embodiment, as shown in fig. 2, the gutter at the intercepting ditch is installed near the slope of the roadbed by cast-in-place concrete or precast slabs; as shown in fig. 3, the side slope and the side ditch in the side slope protection can be installed by prefabricating concrete slabs on the slope surface of one layer close to the roadbed; as shown in figure 3, the slope of the side ditch is close to the top of one layer of the side ditch and is provided with a water retaining block 12 to prevent rainwater from infiltrating into the bottom of the panel, so that the service life of the drainage ditch is prevented from being influenced.
In summary, the high cutting slope side ditch drainage and slope protection construction method provided by the embodiment of the invention has the advantages that the side slope mainly comprises main structures such as precast concrete panels, side slope protection mortar rubbles, drain holes, geotextile isolation layers and the like, the cutting side slope structure plays a great role in drainage effect, the cutting intercepting ditch is in a V shape, and the side ditch is in a trapezoid shape, so that slope water can be effectively intercepted and rapidly drained; the layer of the side ditch close to the side slope can be set into a precast concrete slab, and the slab can be precast by a centralized factory, produced in batches and transported to the site for installation, so that the construction production efficiency can be improved; the position close to the slope toe of the side slope is protected by grouted rubble, the height is within a certain range from the vertical height above the elevation of the bottom of the side ditch, the bottom is provided with a permeable material such as a rubble layer, then a layer of concrete is poured, the stability of the slope toe of the side slope is improved, and a water drain pipe is arranged according to the design requirement; the water drain pipe adopts a PVC pipe with holes and inclines outwards to improve the drainage effect, the inner side of the water drain pipe is embedded into the permeable layer for at least 0.15m, the permeable material can adopt gravels, and a layer of geotextile is laid between the soil body and the gravel layer to serve as an isolation layer to improve the permeable effect; when cutting is excavated, the table of the side slope is cleared firstly, then cutting excavation is carried out according to the designed cross section, temporary intercepting ditch construction can be carried out before excavation, if one-step excavation can be carried out, permanent intercepting ditch construction can be carried out, and after one-step side slope excavation, one-step protection is carried out, the slope foot and the slope protection adopt grouted rubble slope protection, so that the stability and the anti-scouring effect of the side slope are improved; the construction method can effectively improve the functions of cutting slope protection and water interception and drainage through the combination of the side ditches and the revetment. In addition, compared with the prior art, the construction method has the advantages that firstly, the assembly type construction technology is fully exerted, the installation of the prefabricated panel is accelerated, the construction quality is improved, meanwhile, the effective stabilizing effect is achieved on the slope protection, and the drainage effect is obvious; meanwhile, compared with other technical processing schemes such as soil nailing walls, anchor rods and the like, the construction method is high in operability and economical.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A construction method for drainage and protection of a high cutting slope gutter is characterized in that the cutting intercepting gutter adopts a V-shaped structure, a slope adopts a trapezoidal structure, and the construction method comprises the following steps:
a measurement lofting step, namely performing construction lofting based on a designed cross section, removing sundries and surface soil, and sampling to check whether the bottom soil meets the requirement of filling roadbed materials; if the requirement is met, the excavated soil bodies are piled up in a centralized manner to carry out roadbed filling construction;
a step of constructing the intercepting drain, which is to construct the intercepting drain;
an excavation step, namely excavating the cutting soil layer by layer based on the designed cross section edge line, constructing according to a mode of excavating a protective layer, and constructing a permanent intercepting ditch and then constructing a side slope protection when protecting;
building block stones, namely building slope protection by using grouted rubbles at a side slope position within a preset range from the elevation of the bottom of the drainage ditch upwards, arranging a slope permeable layer at the bottom of the grouted rubbles, installing a prefabricated panel above the grouted rubbles, and sealing joints of the prefabricated panel by using mortar or epoxy resin glue;
a water drain pipe installation step, namely installing a water drain pipe in the grouted rubble, penetrating the grouted rubble and being embedded into the side slope permeable layer, and paving a layer of non-woven geotextile between the side slope permeable layer and the soil layer as an isolation layer to prevent soil loss and enhance the permeable effect;
and (3) a slope construction step, namely constructing the slope of the side ditch close to the roadbed by adopting cast-in-place concrete or a prefabricated panel, and leveling and longitudinally adjusting the slope of the ditch bottom by adopting the cast-in-place concrete at the ditch bottom, so that the overall stability of the prefabricated panel is improved.
2. The construction method for high cutting slope gutter drainage and protection according to claim 1, further comprising:
and (3) a seepage ditch construction step, namely when a seepage ditch or seepage pipe exists in the excavation section roadbed, paving a gravel cushion layer with the thickness at least larger than 100mm at the joint of the seepage ditch and a layer of grouted rubble on the side slope, paving a C20 concrete layer to improve the stability of the slope toe of the side slope, and paving grouted rubble protection slopes at the side slope in sequence.
3. The construction method for the drainage and protection of the high cut slope gutter according to claim 2,
the infiltration pipe is arranged in the infiltration ditch, the periphery of the infiltration pipe is backfilled with water permeable materials, and a layer of non-woven geotextile is laid between the permeable layer of the infiltration ditch and the soil body to serve as an isolation layer, so that the soil body is prevented from losing and the permeable effect is enhanced.
4. The construction method for high cut slope gutter drainage and protection according to any one of claims 1 to 3,
the installation of prefabricated panel adopts the loop wheel machine to lift by crane, artifical cooperation installation to the assigned position, and the domatic top that is close to the side ditch one deck of side ditch sets up a water-retaining piece, prevents that the rainwater from erodeing and seeping to the panel bottom, avoids influencing escape canal life.
5. The construction method for high cut slope gutter drainage and protection according to any one of claims 1 to 3,
in the excavation step, if the excavation section is larger, a temporary side slope protection and a temporary intercepting ditch are arranged to strengthen the side slope protection and side slope drainage.
6. The construction method for high cut slope gutter drainage and protection according to any one of claims 1 to 3,
the intercepting ditch adopts a prefabricated panel structure, and a layer of the intercepting ditch close to the side slope adopts a grouted rubble and cast-in-place concrete structure.
7. The construction method for high cut slope gutter drainage and protection according to any one of claims 1 to 3,
the water drain pipes are inclined outwards by a preset angle, the end parts, close to the slope permeable layer, of the water drain pipes are at least embedded by 50mm, and the transverse distance between the water drain pipes is 1.0-1.25 m.
8. The construction method for drainage and protection of high cut slope side ditches according to any one of claims 1 to 3, wherein a geotextile is laid between the permeable layer of the side slope and the soil layer as an isolation layer.
9. The construction method for high cut slope gutter drainage and protection according to any one of claims 1 to 3,
the side slope permeable layer and/or the infiltration ditch permeable layer are/is a rubble layer.
10. The construction method for high cut slope gutter drainage and protection according to any one of claims 1 to 3,
capillary holes are formed in the infiltration pipe, and the diameter of the capillary holes is 4-5 mm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305921A (en) * | 2022-08-19 | 2022-11-08 | 中交路桥建设有限公司 | Construction method for precast concrete foundation pit slope protection |
| CN115491939A (en) * | 2022-10-11 | 2022-12-20 | 宁夏大学 | Be applied to fender drainage facility of permafrost region road |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338027A (en) * | 1995-06-13 | 1996-12-24 | Ohbayashi Corp | Construction of slope of embankment |
| CN103410159A (en) * | 2013-08-13 | 2013-11-27 | 南昌工程学院 | Expansive soil cut slope support structure and construction method thereof |
| CN105862885A (en) * | 2016-04-12 | 2016-08-17 | 化学工业岩土工程有限公司 | Soil slope reinforcing method |
| CN107558480A (en) * | 2017-07-07 | 2018-01-09 | 江苏省镇江市路桥工程总公司 | The construction method of the reinforced ecological slope protection structure of roadbed three-dimensional water discharge |
| CN107869101A (en) * | 2017-10-27 | 2018-04-03 | 广州番禺职业技术学院 | A kind of prefabricated assembled Intercepting Drain Used in Highway and its manufacture method |
| CN108385701A (en) * | 2018-03-14 | 2018-08-10 | 中建五局土木工程有限公司 | Road Protection of Expansive Soil structure and its construction method |
| CN109610486A (en) * | 2018-12-17 | 2019-04-12 | 中冶天工集团有限公司 | A kind of high slope Permeable interlayer trapping method |
| CN109826065A (en) * | 2019-02-22 | 2019-05-31 | 无锡市政设计研究院有限公司 | A kind of high-fill roadbed guard system and its construction method |
| CN109868830A (en) * | 2019-03-28 | 2019-06-11 | 中交第二公路勘察设计研究院有限公司 | The impervious safeguard structure of immerseable embankment side slope and construction method |
| CN114411921A (en) * | 2022-01-26 | 2022-04-29 | 西安公路研究院有限公司 | Method and structure for building roadbed drainage ditch through road reconstruction and extension |
-
2022
- 2022-05-30 CN CN202210600672.0A patent/CN114875936A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338027A (en) * | 1995-06-13 | 1996-12-24 | Ohbayashi Corp | Construction of slope of embankment |
| CN103410159A (en) * | 2013-08-13 | 2013-11-27 | 南昌工程学院 | Expansive soil cut slope support structure and construction method thereof |
| CN105862885A (en) * | 2016-04-12 | 2016-08-17 | 化学工业岩土工程有限公司 | Soil slope reinforcing method |
| CN107558480A (en) * | 2017-07-07 | 2018-01-09 | 江苏省镇江市路桥工程总公司 | The construction method of the reinforced ecological slope protection structure of roadbed three-dimensional water discharge |
| CN107869101A (en) * | 2017-10-27 | 2018-04-03 | 广州番禺职业技术学院 | A kind of prefabricated assembled Intercepting Drain Used in Highway and its manufacture method |
| CN108385701A (en) * | 2018-03-14 | 2018-08-10 | 中建五局土木工程有限公司 | Road Protection of Expansive Soil structure and its construction method |
| CN109610486A (en) * | 2018-12-17 | 2019-04-12 | 中冶天工集团有限公司 | A kind of high slope Permeable interlayer trapping method |
| CN109826065A (en) * | 2019-02-22 | 2019-05-31 | 无锡市政设计研究院有限公司 | A kind of high-fill roadbed guard system and its construction method |
| CN109868830A (en) * | 2019-03-28 | 2019-06-11 | 中交第二公路勘察设计研究院有限公司 | The impervious safeguard structure of immerseable embankment side slope and construction method |
| CN114411921A (en) * | 2022-01-26 | 2022-04-29 | 西安公路研究院有限公司 | Method and structure for building roadbed drainage ditch through road reconstruction and extension |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305921A (en) * | 2022-08-19 | 2022-11-08 | 中交路桥建设有限公司 | Construction method for precast concrete foundation pit slope protection |
| CN115491939A (en) * | 2022-10-11 | 2022-12-20 | 宁夏大学 | Be applied to fender drainage facility of permafrost region road |
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