CN204728350U - For the ruggedized construction that artificial earth fill's slope reinforcement is administered - Google Patents

Abstract

The utility model provides a reinforcement structure used for reinforcement and treatment of artificial fill slopes. For the construction of the reinforcement structure, first set up pressure grouting holes on the slope of the fill slope in a square or plum blossom shape according to the set interval, insert a PVC grouting pipe into each pressure grouting hole, and press the first outside The construction sequence in the back is pressure grouting into each PVC grouting pipe in turn; then segmental grouting holes are drilled at intervals between the pressure grouting holes, the spacing and arrangement are the same as the pressure grouting holes, and then in each segment Insert grouting steel pipes into the grouting holes of the section, and grout into each grouting steel pipe in the order of first outside and then inside, and finally open multiple drainage blind wells horizontally between the PVC grouting pipes and the grouting steel pipes , and pour gravel into the borehole or insert a permeable blind pipe to form a blind drainage well, and the blind drainage well extends into the stable soil layer below the potential sliding surface of the slope. The utility model is simple and convenient in construction, economical and practical, and can solve the stability problem of most fill soil slopes dominated by gravel soil.

Description

Reinforcing structure for reinforcement and treatment of artificial fill slope

technical field

The utility model belongs to the reinforcement of deformation and failure of artificial filling slopes, and is specifically a grouting grouting system for the reinforcement and treatment of artificial filling slopes formed by a combination of pressure grouting complexes, grouting micro-steel pipe piles and drainage blind wells. Slurry micro-steel pipe piles to strengthen the structure.

Background technique

When building a new project in a mountainous or hilly area, the site needs to be excavated and filled to level a large area, which will inevitably form a large number of high and steep fill slopes. This type of artificial fill slope is characterized by high gravel content, loose structure, and good water permeability. It is very easy to lose stability under adverse conditions such as heavy rain or earthquakes, and deformation and failure occur, bringing serious consequences. There are two main reasons for the deformation and instability of artificial fill slopes. One is that the atmospheric rainfall penetrates into the loose fill, which reduces the shear strength of the fill; Penetration increases the potential sliding force of the slope.

For artificial fill slopes of this type of structure, if a single anti-slide retaining measure (such as anti-slide piles, anchor piles, etc.) Anti-slide piles have a long construction period and high cost, and it is difficult to form a soil arch effect between the piles, and the soil between the piles is easy to squeeze out, causing the failure of the treatment project; if a single anchoring measure (such as prestressed anchor cables, lattice anchor cables, etc.) During processing, due to the low bonding strength between the filling soil and the anchoring body, a super-long prestressed anchor cable with a large diameter is often required to meet the design safety standard, and the construction is difficult. It is difficult to form a hole, and the prestress is easy to lose. It can be seen that the construction process of traditional treatment and reinforcement measures is complicated, the cost is high, the period is long, and the technical reliability is not high, so it is difficult to fundamentally solve the problem of permanent stability of the fill slope. From the perspective of its instability mechanism, the governance system of this type of slope is established.

Contents of the invention

The utility model provides a reinforcement structure for the reinforcement and management of artificial fill slopes according to the deficiencies of the prior art. The reinforcement structure can well reinforce the loose soil of the fill slopes, The sliding force of the potential landslide is transferred to the deep stable soil, and the drainage system is established in the slope body to guide the groundwater to discharge the landslide body in an orderly manner, reduce the seepage force, fundamentally enhance the overall stability of the slope, and reduce the Governance construction difficulty, cost saving.

The technical solution provided by the utility model: the reinforcement structure used for the reinforcement and treatment of artificial fill slopes is characterized in that: the reinforcement structure includes a plurality of pressure grouting complexes, a plurality of grouting micro-steel pipe piles and a plurality of drainage blind wells, the plurality of pressure grouting complexes are arranged in a square or quincunx shape on the slope of the fill slope, and a plurality of grouted micro-steel pipe piles are also arranged in a square or quincunx shape at two intervals. Between adjacent pressure grouting complexes, the shape of the plurality of grouting micro-steel pipe piles is the same as that of the multiple pressure grouting complexes. When the pressure grouting complexes are arranged in a square shape, the grouting micro-steel piles The pipe piles are also arranged in a square shape. When the pressure grouting complex is arranged in a quincunx shape, the grouted micro steel pipe piles are also arranged in a quincunx shape; the pile bodies of multiple pressure grouting complexes and grouted micro steel pipe piles are all perpendicular to The slope surface of the fill slope extends into the stable layer of the slope body, and the plurality of drainage blind wells are horizontally arranged between the pressure grouting complex and the grouting micro-steel pipe piles, and each drainage blind The wells are horizontally inserted into the fill slope body, and the wellhead of each drainage blind well is set on the slope surface of the fill slope, and the drainage blind well is spaced from the pressure grouting complex and the grouting micro-steel pipe piles Arrangement, there will be no mutual staggered situation; the pressure grouting complex is composed of a pressure grouting hole, a PVC grouting pipe inserted into the pressure grouting hole, and pressure grouting into the pressure grouting hole through the PVC grouting pipe The formed pressure grouting reinforcement is composed of; the grouting micro-steel pipe pile is formed by segmental grouting holes, grouting steel pipes inserted into the segmental grouting holes, and grouting through the grouting steel pipes into the grouting holes The composition of the grouting reinforcement.

A further technical solution of the utility model: the drainage blind well is composed of a horizontal borehole with a diameter of 130-180 mm and a filling layer poured into the horizontal borehole, and the filling layer is made of gravel or a permeable blind pipe.

The preferred technical solution of the utility model: the plurality of pressure grouting complexes and the plurality of grouting micro-steel pipe piles are equidistantly distributed, wherein the distance between the plurality of pressure grouting complexes is 2.5m to 3m, and the plurality of grouting The distance between the grouted micro-steel pipe piles is also 2.5m~3m; the diameter of the pressure grouting hole and segmental grouting hole is 110~150mm; the depth of the pressure grouting hole and segmental grouting hole in the stable soil layer is not less than 3m.

The preferred technical solution of the utility model: the grouting steel pipe is formed by connecting multi-section steel flower pipes through threaded sleeves. A slurry hole with a diameter of 10mm, a plurality of slurry holes are distributed in a spiral shape, and the vertical distance between two adjacent slurry holes is 250mm, and the vertical distance is the distance between two adjacent slurry holes along the vertical direction of the pipe wall Weld 3 positioning steel bars with a diameter of 8mm every 2m on the body of the grouted steel pipe, and the threaded sleeve is made of a seamless steel pipe with a diameter of 90mm and a wall thickness of 4-6cm, with a length of 10cm and a steel flower For pipe welding, the number of joints at the same section of multiple grouted steel pipes shall not exceed 50%.

The preferred technical scheme of the utility model: the PVC grouting pipe is made of a PVC plastic pipe with a diameter of 90mm, and a plurality of slurry holes with a diameter of 10mm are opened on the pipe wall, and the plurality of slurry holes are in a spiral shape. Shaped distribution, the vertical distance between two adjacent slurry outlets is 250mm.

Construction method of the present utility model, concrete steps are as follows:

(1) Make pressure grouting holes on the slope of the fill slope according to the set interval in a square or plum blossom shape, insert a PVC grouting pipe into each pressure grouting hole, and construct according to the first outside and then inside Sequentially pressure grouting into each grouting flower tube, the diameter of the pressure grouting hole is 110-150 mm, and the grouting depth is not less than 3.0 m through the loose fill layer and into the underlying stable soil layer;

(2) Segmented grouting holes are drilled at intervals between the pressure grouting holes, the spacing and arrangement are the same as the pressure grouting holes, and then a grouting steel pipe is inserted into each grouting hole, and the first outside and then inside Sequentially inject grout into each grouting steel pipe. The diameter of the grouting hole should be 110-150mm, and the grouting depth should not be less than 3.0m through the loose filling layer and into the underlying stable soil layer;

(3) Multiple drainage blind wells are drilled horizontally between the PVC grouting pipe and the grouting steel pipe, and gravel or permeable blind pipes are poured into the boreholes to form a drainage blind well, and the drainage blind wells extend into the side slope In the stable soil layer below the potential slip surface.

The further technical scheme of the utility model is that the concrete steps of the pressure grouting in the step (1) are as follows:

a. First, the pressure grouting holes are arranged in a plum blossom shape or square at intervals of 2.5m~3m perpendicular to the slope. The diameter of the pressure grouting holes is 110~150mm, and the holes are formed by dry drilling without water to reach the design depth. , and number the drilled pressure grouting holes from left to right;

b. Insert a PVC grouting pipe into each pressure grouting hole that has been drilled, and use a grouting pump to press and inject clear water into the drilled core hole to clear the hole; the PVC grouting pipe is made of a PVC plastic pipe with a diameter of 90mm As a result, there are multiple slurry holes with a diameter of 10mm on the pipe wall, and the multiple slurry holes are distributed in a spiral shape, and the vertical distance between two adjacent slurry holes is 250mm;

c. Insert a PVC grouting pipe and exhaust pipe with a diameter of 25mm after cleaning the hole, pour C25 concrete into the hole at 1.0m to seal the hole, and start pressure grouting after the concrete solidifies; the order of pressure grouting is first down and then up The three-sequence grouting sequence: (1, 4, 7), (2, 5, 8), (3, 6, 9) for grouting, the grout is made of ordinary Portland cement, the water-cement ratio is 0.5, the grout The effective diffusion radius is 0.5 ~ 1.0m; the grouting adopts the piston to close the nozzle, and the grouting pressure is not less than 2.0MPa.

The further technical scheme of the utility model is that the concrete steps of grouting in the step (2) are as follows:

a. First, segmental grouting holes are arranged perpendicular to the slope between two adjacent pressure grouting holes. The diameter of the segmental grouting holes is 110-150mm, and the distance between the segmental grouting holes is 2.5m-3m , use dry drilling without water to form holes to reach the design depth, and number the drilled segmental grouting holes from left to right;

b. Insert grouting steel pipes into each segmented grouting hole drilled; the grouting steel pipes are connected by multi-section steel flower pipes through threaded sleeves, and the lower end of the steel pipes is processed into a sealed 20° point Conical, with multiple grouting holes with a diameter of 10mm on the steel pipe wall, the multiple grouting holes are distributed in a spiral shape, and the vertical distance between two adjacent grouting holes is 250mm; Three positioning steel bars with a diameter of 8mm are welded every 2m. The threaded sleeve is made of a seamless steel pipe with a diameter of 90mm and a wall thickness of 4-6cm. It is 10cm long and welded with a steel flower tube. The number of joints at the same cross-section does not exceed 50%;

c. After laying out the grouting steel pipes, start grouting. The grouting method adopts segmental grouting, that is, the grouting hole is divided into upper and lower sections for grouting respectively, and the first section is 0.2MPa in the soil layer 1.0m below the surface. Grouting pressure, after the upper soil has formed a certain strength, then carry out the grouting construction outside the scope of the 1.0m soil layer below the surface of the second section, the second section adopts secondary grouting, the first grouting pressure is 0.5MPa, The secondary grouting pressure is 1.0MPa; the grouting sequence is performed according to the three-sequence grouting sequence: (1, 4, 7), (2, 5, 8), (3, 6, 9), Ordinary Portland cement is used for the slurry, and the water-cement ratio is 0.5.

The beneficial effects of the utility model are:

(1) The construction of the utility model is simple and convenient, economical and practical, and can solve most of the stability problems of filled slopes dominated by gravel soil;

(2) The utility model adopts three structures of pressure grouting, grouting micro-steel pipe piles and drainage blind well. Shear strength; grouted micro-steel pipe piles transfer the sliding force of the potential slide of the slope to the deep soil and enhance its overall stability; the blind drainage well improves the drainage channel of the slope and reduces the penetration of groundwater on the slope;

(3) The utility model starts from two aspects of internal and external factors, weakens the connection between the interior of the soil and atmospheric rainfall, improves the characteristics of the weak shear strength of loose fill, and fundamentally solves the problem of such slopes in the atmosphere. The problem of easy denaturation and damage under the action of rainfall.

Description of drawings

Fig. 1 is the floor plan of the utility model;

Fig. 2 is the sectional view of the utility model;

Fig. 3 is a sectional view of the pressure grouting complex;

Fig. 4 is the sectional view of grouting micro-steel pipe pile;

Fig. 5 is the structural representation of grouting steel pipe;

Fig. 6 is the structural representation of PVC grouting pipe;

In the figure: 1—pressure grouting complex, 1-1—pressure grouting hole, 1-2—PVC grouting pipe, 1-3—pressure grouting reinforcement, 2—grouting miniature steel pipe pile, 2- 1—segmented grouting hole, 2-2—grouting steel pipe, 2-3—grouting reinforcement, 3—drainage blind well, 4—filling slope, 5—grouting hole, 6—positioning steel bar, 7 — threaded sleeve, 8 — potential slip surface of the slope.

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model is further described. As shown in Figure 1 and Figure 2, a reinforcement structure for artificial fill slope reinforcement and treatment, including multiple pressure grouting complexes 1, multiple grouting micro steel pipe piles 2 and multiple drainage blind wells 3 , the plurality of pressure grouting complexes 1 are arranged in a square or quincunx shape on the slope of the fill slope 4, and a plurality of grouted micro-steel pipe piles 2 are also arranged in a square or quincunx shape at intervals between two adjacent pressure Between the grouting complexes 1, the shape of the multiple grouting micro-steel pipe piles is the same as that of the multiple pressure grouting complexes. When the pressure grouting complexes are arranged in a square shape, the grouting micro-steel pipe piles It is also arranged in a square shape. When the pressure grouting complex is arranged in a quincunx shape, the grouted micro-steel pipe piles are also arranged in a quincunx shape. After the arrangement, multiple pressure grouting complexes are equidistant from multiple grouted micro-steel pipe piles. distribution, and the distance between two adjacent pressure grouting composites 1 is 2.5m to 3m, and the distance between two adjacent grouting micro-steel pipe piles 2 is also 2.5m to 3m; multiple pressure grouting composite The pile body 1 and the grouted micro-steel pipe pile 2 are both perpendicular to the slope surface of the fill slope 4 and inserted into the stable soil layer below the potential slip surface 8 of the slope in the slope body. The depth of the two inserted into the stable soil layer is No less than 3m. Pressure grouting is mainly used to increase the strength of loose soil, reduce deformation of high and steep fill slopes, and form cracks. Grouting micro steel pipe piles transfer part of the sliding force of potential landslides to the In deep soil, increase the overall stability of the slope. As shown in Figure 3, the pressure grouting complex 1 is composed of a pressure grouting hole 1-1, a PVC grouting pipe 1-2 inserted into the pressure grouting hole 1-1 and a PVC grouting pipe 1-2 The pressure grouting reinforced body 1-3 formed by pressure grouting in the pressure grouting hole 1-1 is composed of; The grouting steel pipe 2-2 inserted into the segmented grouting hole 2-1 is composed of the grouting reinforcement body 2-3 formed by grouting the grouting steel pipe 2-2 into the grouting hole 2-1; the pressure grouting hole The apertures of 1-1 and grouting hole 2-1 are both 110-150mm.

As shown in Figure 1 and Figure 2, the drainage blind well 3 is composed of a horizontal borehole with a diameter of 130-180mm and a filling layer poured into the horizontal borehole, and the filling layer is made of gravel or a permeable blind pipe. A plurality of drainage blind wells 3 are horizontally arranged between the pressure grouting complex 1 and the grouting micro-steel pipe pile 2, and the wellhead of each drainage blind well 3 is set on the slope surface of the fill slope 4, and the drainage blind wells 3 is the position set between the pressure grouting complex 1 and the grouting micro steel pipe pile 2, and does not have any interlaced part with the pressure grouting complex 1 and the grouting micro steel pipe pile 2; the distance between the drainage blind wells It is adjusted according to the catchment area of the slope, and extends into the stable soil layer below the potential slip surface 8 of the slope. The blind drainage well guides the groundwater infiltrated by rainfall out of the slope body reasonably, reducing its seepage force, thereby reducing the The sliding force increases the overall stability of the slope.

As shown in Figure 5, the grouting steel pipe 2-2 is formed by connecting multi-section steel flower pipes through threaded sleeves 7. A plurality of grouting holes 5 with a diameter of 10 mm are distributed in a spiral shape, and the vertical distance between two adjacent grouting holes 5 is 250 mm; 3 grouting holes are welded every 2 m on the body of the grouting steel pipe 2-2. A positioning steel bar 6 with a diameter of 8 mm, the threaded sleeve 7 is made of a seamless steel pipe with a diameter of 90 mm and a wall thickness of 4 to 6 cm. It is 10 cm long and welded with a steel flower tube. 2 The number of joints at the same section shall not exceed 50%. As shown in Figure 6, the PVC grouting pipe 1-2 is made of a PVC plastic pipe with a diameter of 90 mm, and a plurality of grout holes 5 with a diameter of 10 mm are provided on the pipe wall. 5 are distributed in a spiral shape, and the vertical distance between two adjacent pulp outlets is 250mm.

Embodiment 1. A construction method for a reinforcement structure used for reinforcement and treatment of artificially filled slopes. The slope body is mainly filled with loose gravel-containing silty clay, with a slope height of 12m and a slope ratio of 1:1.00. There is a load of 200kPa, affected by the heavy rain and the upper load, local deformation and failure have occurred before reinforcement. The applicant unit shall strengthen it according to the following steps:

(1) Drill pressure grouting holes on the slope of the fill slope according to the set interval in a square shape. The pressure grouting holes are formed by dry drilling without water. The hole diameter is 110mm. The distance between the grouting holes The grouting depth shall be no less than 3.0m through the loose fill soil layer and into the underlying stable soil layer, and the drilled grouting holes shall be numbered sequentially from left to right;

(2) Insert a PVC grouting pipe in each pressure grouting hole that has been drilled, and use a grouting pump to press and inject clear water into the core hole to clear the hole; the PVC grouting pipe is processed by a PVC plastic pipe with a diameter of 90mm Made, a plurality of slurry holes with a diameter of 10mm are opened on the wall of the PVC plastic pipe, and the plurality of slurry holes are distributed in a spiral shape, and the vertical distance between two adjacent slurry holes is 250mm;

(3) Insert a PVC grouting pipe and exhaust pipe with a diameter of 25mm after cleaning the hole, pour C25 concrete into the hole at 1.0m to seal the hole, and start pressure grouting after the concrete solidifies; the order of pressure grouting is first down and then up The three-sequence grouting sequence of the row: (1, 4, 7), (2, 5, 8), (3, 6, 9) for grouting, the grout is made of ordinary Portland cement, and its water-cement ratio is 0.5, The effective diffusion radius of the grout is 0.5-1.0m; the grouting uses a piston to close the nozzle, and the grouting pressure is not less than 2.0MPa;

(4) Segmented grouting holes are arranged perpendicular to the slope between two adjacent pressure grouting holes. The diameter of the segmented grouting holes is 110mm, and the distance between the segmented grouting holes is 2.5m. Drill the construction process to make holes to reach the design depth, and number the drilled segmental grouting holes from left to right;

(5) Insert a grouting steel pipe into each segmental grouting hole drilled; the grouting steel pipe is formed by connecting multi-section steel flower pipes through threaded sleeves, and the lower end of the steel pipe is processed into a sealed 20° Pointed conical shape, multiple grouting holes with a diameter of 10mm are opened on the steel pipe wall, the multiple grouting holes are distributed in a spiral shape, and the vertical distance between two adjacent grouting holes is 250mm. Three positioning steel bars with a diameter of 8mm are welded every 2m. The threaded sleeve is made of a seamless steel pipe with a diameter of 90mm and a wall thickness of 4-6cm. It is 10cm long and welded with a steel flower tube. The number of joints at the same cross-section does not exceed 50%;

(6) After laying out the grouting steel pipes, start grouting. The grouting method adopts segmental grouting, that is, the grouting hole is divided into upper and lower sections for grouting respectively, and the first section is 0.2MPa within the range of 1.0m soil layer below the surface. After the upper soil has formed a certain strength, the second section of grouting construction outside the range of 1.0m soil layer below the surface is carried out. The second section adopts secondary grouting, the first grouting pressure is 0.5MPa, and the The secondary grouting pressure is 1.0MPa; the grouting sequence is performed according to the three-sequence grouting sequence: (1, 4, 7), (2, 5, 8), (3, 6, 9) , the slurry is made of ordinary Portland cement, and the water-cement ratio is 0.5;

(7) When constructing drainage blind wells, the points should be positioned accurately during construction, and the lateral deflection rate of the holes should not be greater than 1%, so as to prevent intersections with grouting holes and affect the quality of slope reinforcement.

According to the above construction method, within three years after the construction is completed, the maximum total horizontal deformation value and settlement value of the slope top are small and within the safe range.

Embodiment 2. A construction method for reinforcing structures used for artificial fill slope reinforcement and management. The slope body is mainly filled with crushed granular strong weathered rock, with a slope height of 35m and a slope ratio of 1:1.00. Affected by the heavy rain, cracks appeared in the fourth and fifth grades and the top of the slope in the upper half of the slope, and the ground subsidence. The implementation steps of its reinforcement are as follows:

(1) Pressure grouting holes are drilled on the slope of the fill slope according to the set interval in a square shape. The pressure grouting holes are formed by dry drilling without water. The hole diameter is 120mm. The distance between the grouting holes The grouting depth is not less than 3.0m through the loose fill soil layer and into the underlying stable soil layer, and the drilled grouting holes are numbered sequentially from left to right;

(2) Insert a PVC grouting pipe in each pressure grouting hole that has been drilled, and use a grouting pump to press and inject clear water into the core hole to clear the hole; the PVC grouting pipe is processed by a PVC plastic pipe with a diameter of 90mm Made, the pipe wall is provided with a plurality of slurry holes with a diameter of 10mm, the plurality of slurry holes are distributed in a spiral shape, and the vertical distance between two adjacent slurry holes is 250mm;

(3) Insert a PVC grouting pipe and exhaust pipe with a diameter of 25mm after cleaning the hole, pour C25 concrete into the hole at 1.0m to seal the hole, and start pressure grouting after the concrete solidifies; the order of pressure grouting is first down and then up The three-sequence grouting sequence of the row: (1, 4, 7), (2, 5, 8), (3, 6, 9) for grouting, the grout is made of ordinary Portland cement, and its water-cement ratio is 0.5, The effective diffusion radius of the grout is 0.5-1.0m; the grouting uses a piston to close the nozzle, and the grouting pressure is not less than 2.0MPa;

(4) Segmented grouting holes are arranged perpendicular to the slope between two adjacent pressure grouting holes. The diameter of the segmented grouting holes is 120mm, and the distance between the segmented grouting holes is 3m. Dry drilling without water is used. The construction process makes the holes to reach the design depth, and number the drilled segmental grouting holes from left to right;

(5) Insert a grouting steel pipe into each segmental grouting hole drilled; the grouting steel pipe is formed by connecting multi-section steel flower pipes through threaded sleeves, and the lower end of the steel pipe is processed into a sealed 20° Pointed conical shape, there are multiple grouting holes with a diameter of 10mm on the steel pipe wall, the multiple grouting holes are distributed in a spiral shape, and the vertical distance between two adjacent grouting holes is 250mm, on the pipe body of the grouting steel pipe Weld three positioning steel bars with a diameter of 8mm every 2m. The threaded sleeve is made of a seamless steel pipe with a diameter of 90mm and a wall thickness of 4-6cm. It is 10cm long and welded with a steel flower tube. The number of joints at the same section of the steel pipe does not exceed 50%;

(6) After laying out the grouting steel pipes, start grouting. The grouting method adopts segmental grouting, that is, the segmental grouting hole is divided into upper and lower segments for grouting respectively. The first segment is 1.0m below the surface. The grouting pressure of 0.2MPa, after the upper soil has formed a certain strength, the grouting construction of the second section outside the scope of the 1.0m soil layer below the surface is carried out, the second section adopts the second grouting, and the first grouting pressure is 0.5MPa , the second grouting pressure is 1.0MPa; the grouting sequence is the three-sequence grouting sequence: (1, 4, 7), (2, 5, 8), (3, 6, 9 ), the slurry is made of ordinary Portland cement, and the water-cement ratio is 0.5;

(7) When constructing drainage blind wells, the points should be positioned accurately during construction, and the lateral deflection rate of the holes should not be greater than 1%, so as to prevent intersections with grouting holes and affect the quality of slope reinforcement.

Within two years after the completion of the project construction, the maximum total horizontal deformation value and settlement value of the slope top were significantly reduced.

Claims (5)

1. a ruggedized construction of administering for artificial earth fill's slope reinforcement, it is characterized in that: described ruggedized construction comprises multiple slip casing by pressure complex (1), multiple slip casting miniature steel pipe pile (2) and multiple draining blind shaft (3), described multiple slip casing by pressure complex (1) is square or domatic at welding with filler wire (4) of quincuncial arrangement, multiple slip casting miniature steel pipe pile (2) is also corresponding to be square or quincunx interval is arranged between two adjacent slip casing by pressure complexs (1), multiple slip casing by pressure complex (1) and slip casting miniature steel pipe pile (2) all extend in the stabilized zone of Slope body perpendicular to the domatic of welding with filler wire (4), described multiple horizontal drainage blind shaft (3) interval is arranged between slip casting miniature steel pipe pile (2), and the well head of each draining blind shaft (3) is located at the domatic of welding with filler wire (4), described slip casing by pressure complex (1) is by the PVC Grouting Pipe (1-2) in slip casing by pressure hole (1-1), insertion slip casing by pressure hole (1-1) and consist of the slip casing by pressure reinforcing body (1-3) that PVC Grouting Pipe (1-2) is formed to slip casing by pressure hole (1-1) interior slip casing by pressure, described slip casting miniature steel pipe pile (2) is by the slip casting steel pipe (2-2) in segmenting slip casting hole (2-1), insertion segmenting slip casting hole (2-1) and consist of the grouting and reinforcing body (2-3) that slip casting steel pipe (2-2) is formed to segmenting slip casting hole (2-1) interior slip casting.

2. a kind of ruggedized construction of administering for artificial earth fill's slope reinforcement according to claim 1, it is characterized in that: described draining blind shaft (3) is that the horizontal drilling of 130 ~ 180mm forms with the charges poured in horizontal drilling by diameter, and described charges adopt rubble or Permeable blind pipe.

3. a kind of ruggedized construction of administering for artificial earth fill's slope reinforcement according to claim 1 and 2, it is characterized in that: described multiple slip casing by pressure complex (1) and multiple slip casting miniature steel pipe pile (2) are all equally spaced, wherein the spacing of multiple slip casing by pressure complex (1) is 2.5m ~ 3m, and the spacing of multiple slip casting miniature steel pipe pile (2) is also 2.5m ~ 3m; The aperture of slip casing by pressure hole (1-1) and segmenting slip casting hole (2-1) is 110 ~ 150mm; The degree of depth that slip casing by pressure hole (1-1) and segmenting slip casting hole (2-1) are placed in steady soil is not less than 3m.

4. a kind of ruggedized construction of administering for artificial earth fill's slope reinforcement according to claim 1 and 2, it is characterized in that: described slip casting steel pipe (2-2) is formed by connecting by screw shell (7) by more piece steel floral tube, steel pipe lower end is in the sharp cone distal of 20 ° of sealing, steel pipe tube wall offers the slurry outlet (5) that multiple diameter is 10mm, multiple slurry outlet (5) distributes in the shape of a spiral, and the vertical interval of two adjacent slurry outlets is 250mm; The pipe shaft of slip casting steel pipe (2-2) welds every 2m the spacer bars (6) that 3 diameters are 8mm, described screw shell (7) employing diameter is 90mm, the seamless steel pipe of wall thickness 4 ~ 6cm is made, long 10cm, and weld with steel floral tube, be no more than 50% in the joint number of the same section of many slip casting steel pipes (2-2).

5. a kind of ruggedized construction of administering for artificial earth fill's slope reinforcement according to claim 1 and 2, it is characterized in that: described PVC Grouting Pipe (1-2) adopts diameter to be that the PVC plastic pipe of 90mm is processed into, tube wall offers the slurry outlet (5) that multiple diameter is 10mm, multiple slurry outlet (5) distributes in the shape of a spiral, and the vertical interval of two adjacent slurry outlets is 250mm.