CN106759390A - A kind of rubble non-uniform pile composite construction and its construction method with draining and AsA -GSH cycle - Google Patents
A kind of rubble non-uniform pile composite construction and its construction method with draining and AsA -GSH cycle Download PDFInfo
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- CN106759390A CN106759390A CN201611023753.XA CN201611023753A CN106759390A CN 106759390 A CN106759390 A CN 106759390A CN 201611023753 A CN201611023753 A CN 201611023753A CN 106759390 A CN106759390 A CN 106759390A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
Invention provides a kind of rubble non-uniform pile composite construction and its construction method with draining and AsA -GSH cycle.The structure includes prefabricated reinforced concrete non-uniform pile, peripheral rubble integrate draining circle and stake bottom blotter.Armored concrete non-uniform pile includes the stake of bottom heavy in section and the stake of top small bore.Heavy in section stake passes through sliding surface and embedded stabilization basement rock.Rubble integrate draining corral is rolled in around small bore stake.Underground water can penetrate into a bottom blotter in the slopes collected.Its construction method includes the steps such as prefabricated non-uniform pile, excavation stake holes, laying stake bottom blotter and filling rubble draining circle.The structure considers in terms of antiskid and draining two, improves the stability of slopes, and a kind of effective retaining structure type is especially provided to underground water and the diaster prevention and control of rainfall induced landslide, and its construction is quick and convenient.
Description
Technical field
The present invention relates to ground retaining structure and slope treatment field, more particularly to a kind of slope retaining composite construction and
Its construction method.
Background technology
China's geological disaster takes place frequently, and wherein landslide disaster is one of topmost geological disaster.Rainfall and Reservoir Water Level
It is one of main inducing of landslide disaster Deng the factor related to underground water.About 70% landslide disaster with rainfall and underground
Water activity is related.In addition, the class groundwater activities of China's generally existing one influence very significant Landslides, i.e. flat push type on it
Landslide.As the big landslide in 2004 Xuanhan County of thought and very famous Wanzhou in Three Gorges Reservoir Region Heping Square landslide group are
Flat push type comes down.It is the Landslide Hazards for preventing seepage action of ground water related, draining and Skid Resistance Measures are preventing and treatings main
Countermeasure.
In the prior art, traditional reinforced concrete anti-slide pile is without drain function and reduces slope to a certain extent
The seepage channel of body internal water.Some new hollow piles, although while considering the draining and antiskid of pile body, but stake is made
The hollow obvious shearing resistance for weakening stake itself and bending resistance.Therefore, the friction pile in existing landslide control engineering：Draining
The shearing and bending strength of better performances but stake weaken；The intensity requirement of stake is ensure that, but without drainage effect.
The content of the invention
It is an object of the invention to provide a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction and its apply
Work method, under conditions of preferable bending resistance shear behavior is ensured, it is ensured that the good drainage that catchments, improves the stabilization of side slope
Property.
The technical scheme used to realize the object of the invention be it is such, it is a kind of broken with draining and AsA -GSH cycle
Stone-non-uniform pile composite construction, including：Armored concrete non-uniform pile in implantation slip mass.
The armored concrete non-uniform pile includes small bore stake and heavy in section stake.The heavy in section stake is arranged at small bore
The bottom of stake.The small bore stake and heavy in section stake are an entirety.
After the heavy in section stake passes through sliding surface, in the stable basement rock below insertion.If being reserved with the heavy in section stake
Dry vertical spilled water hole.
Being wrapped on the outside of the small bore stake stake week has peripheral rubble collection-draining circle.The peripheral rubble collection-draining circle includes
Metalling and loaded filter.
The loaded filter is arranged at heavy in section stake top.The lower surface of spilled water hole connection loaded filter and heavy in section stake
Lower surface.The loaded filter periphery is coated with geotextiles.
The metalling is arranged at loaded filter top.The metalling is layered filling using level with uniform metaling, often
Thickness degree is no more than 500mm.The maximum particle of crushed stone is a, wherein a≤200mm.The metalling top surface is less than small bore stake stake top
200mm~300mm.
The top of the metalling also has argillic horizon.The argillic horizon is put down using clay compacting filling to stake top and earth's surface
It is whole.
The stake bottom of the armored concrete non-uniform pile is equipped with rubble drainage blanket.The rubble drainage blanket uses level
It is layered with uniform metaling and is filled, thickness is 50~100mm.The underground water collected in slip mass is penetrated into broken by spilled water hole
Stone drainage blanket, reaches pervious bed discharge afterwards.
Further, the height that the heavy in section stake top portion is higher by sliding surface is b, and the depth in embedded stabilization basement rock is c.Its
In, c >=3m, b >=1/3c.The small bore stake and heavy in section stake are round stake.The small bore stake and the stake footpath of heavy in section stake
Than being m, wherein 1/2 ＜ m ＜ 2/3.
Further, when the stake bottom of armored concrete non-uniform pile passes through stablizes basement rock not up to pervious bed, rubble draining
Bed course bottom also has several water-guiding holes.The water-guiding hole reaches pervious bed through crack rock.The water-guiding hole is a diameter of
D, wherein d >=100mm.
Further, the small bore stake and heavy in section stake is square pile.The small bore stake and the maximum side of heavy in section stake
Ratio long is n, wherein 1/2 ＜ n ＜ 2/3.
Further, the rubble drainage blanket includes coarse sand bed course and blotter.
Further, there is pile body cage bar and pile body tie hoop in the armored concrete non-uniform pile.The pile body master
Muscle and pile body tie hoop collectively form steel reinforcement cage.
Further, the loaded filter is divided into 3 layers, and fine sand layer, middle rough sand layer and gravel layer are followed successively by from top to bottom.
Invention additionally discloses a kind of on the above-mentioned rubble with draining and AsA -GSH cycle-non-uniform pile composite construction
Construction method, comprises the following steps：
1) prefabricated reinforced concrete non-uniform pile.
2) according to geological conditions, stake holes to projected depth is excavated.The sectional dimension of the stake holes is cut more than heavy in section stake
Face size.
3) rubble drainage blanket is laid in stake holes bottom.
4) armored concrete non-uniform pile is lifted by crane, align piles position adjusts the perpendicularity of armored concrete non-uniform pile, then
Armored concrete non-uniform pile is put into stake holes to designed elevation.
5) stake holes design attitude is wrapped geotextiles, and layering applies loaded filter.
6) slicing and filling and it is compacted metalling to design height.
7) on metalling cover argillic horizon to and grading.
Further, step 3) in, before the blotter of laying stake bottom, water-guiding hole is also drilled with stake bottom.
The solution have the advantages that unquestionable：
A. peripheral rubble collection-draining circle reduces influence of the underground water to slip mass, reduces flowing pressure in slip mass,
Improve the stability of slopes；
B. the shearing resistance of armored concrete non-uniform pile, bending strength are big, effectively increase side slope skid resistance；
C. Reinforcement Works of Rock Slopes construction cost is reduced, construction speed is accelerated.
Brief description of the drawings
Fig. 1 is rubble-non-uniform pile composite construction schematic diagram I；
Fig. 2 is armored concrete non-uniform pile structural representation；
Fig. 3 is Section A-A figure；
Fig. 4 is section B-B figure；
Fig. 5 is rubble-non-uniform pile composite construction schematic diagram II；
Fig. 6 is M partial enlarged drawings；
Fig. 7 is C-C sectional views.
In figure：Stake 101, the heavy in section stake 102, spilled water hole 1021, steel reinforcement cage of armored concrete non-uniform pile 1, small bore
103rd, peripheral rubble collection-draining circle 5, metalling 501, loaded filter 502, fine sand layer 5021, middle rough sand layer 5022, gravel layer
5023rd, geotextiles 6, rubble drainage blanket 8, coarse sand bed course 801, blotter 802, water-guiding hole 10, slip mass 11, sliding surface
12nd, stabilization basement rock 13, pervious bed 14, argillic horizon 15.
Specific embodiment
With reference to embodiment, the invention will be further described, but should not be construed above-mentioned subject area of the invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, all should included within the scope of the present invention.
Embodiment 1：
The present embodiment discloses a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction, including：Implantation is slided
Armored concrete non-uniform pile 1 in slopes 11.
Referring to Fig. 2, the armored concrete non-uniform pile 1 includes small bore stake 101 and heavy in section stake 102.Described big section
Face stake 102 is arranged at the bottom of small bore stake 101.The small bore stake 101 and heavy in section stake 102 are an entirety.The steel
There is pile body cage bar 1031 and pile body tie hoop 1032 in reinforced concrete non-uniform pile 1.The pile body cage bar 1031 and pile body
Tie hoop 1032 collectively forms steel reinforcement cage 103.
Referring to Fig. 1, Fig. 3 and Fig. 4, the small bore stake 101 and heavy in section stake 102 are round stake.The small bore stake 101
Stake footpath ratio with heavy in section stake 102 is m, wherein 1/2 ＜ m ＜ 2/3.
It is embedding in the stable basement rock 13 below insertion after the heavy in section stake 102 passes through sliding surface 12 referring to Fig. 1 and Fig. 4
Enter depth and meet the requirement of side slope stability against sliding.The stake bottom of the heavy in section stake 102 passes through stablizes basement rock pervious bed.Described big section
The height that the top of face stake 102 is higher by sliding surface 12 is b, and the depth in embedded stabilization basement rock 13 is c.Wherein, c >=3m, b >=1/
3c.102 upper surfaces of heavy in section stake are reserved with 4 vertical spilled water holes 1021.The diameter and number of the spilled water hole 1021 are expired
The requirement of sufficient pile body shearing strength and drainability.
Referring to Fig. 1 and Fig. 3, being wrapped on the outside of 101 weeks of small bore stake has peripheral rubble collection-draining circle 5.The periphery
Rubble collection-draining circle 5 includes metalling 501 and loaded filter 502.
The loaded filter 502 is arranged at the top of heavy in section stake 102.The lower surface of the loaded filter 502 and heavy in section stake 102
Upper surface be close to.The lower surface of the connection loaded filter 502 of the spilled water hole 1021 and the lower surface of heavy in section stake 102.It is described anti-
The periphery of filtering layer 502 is coated with geotextiles 6, prevents level from causing spilled water hole 1021 to block to seepage flow.
The metalling 501 is arranged at the top of loaded filter 502.The lower surface of the metalling 501 is upper with loaded filter 502
It is close on surface.The metalling 501 is layered filling using level with uniform metaling, and 500mm is no more than per thickness degree.Rubble is most
Big particle diameter is a, wherein a≤200mm.The top surface of the metalling 501 is less than small bore stake 101 stake top 200mm~300mm.
Referring to Fig. 1, the top of the metalling 501 also has argillic horizon 15.The argillic horizon 15 is good using water isolating
Clay compacting filling to stake top and grading.
The stake bottom of the armored concrete non-uniform pile 1 is also equipped with rubble drainage blanket 8.The rubble drainage blanket 8
Filling is layered with uniform metaling using level, thickness is 50~100mm.Metaling used by the rubble drainage blanket 8 is most
Big particle diameter is e, wherein e≤2/3d.The underground water collected in slip mass 11 penetrates into rubble drainage blanket by spilled water hole 1021
8, pervious bed 14 is reached afterwards discharges.
Embodiment 2：
The present embodiment discloses a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction, including：Implantation is slided
Armored concrete non-uniform pile 1 in slopes 11.
The armored concrete non-uniform pile 1 includes small bore stake 101 and heavy in section stake 102.The heavy in section stake 102 sets
It is placed in the bottom of small bore stake 101.The small bore stake 101 and heavy in section stake 102 are an entirety.The armored concrete becomes
There is pile body cage bar 1031 and pile body tie hoop 1032 in section stake 1.The pile body cage bar 1031 and pile body tie hoop
1032 collectively form steel reinforcement cage 103.
It is embedding in the stable basement rock 13 below insertion after the heavy in section stake 102 passes through sliding surface 12 referring to Fig. 5 and Fig. 6
Enter depth and meet the requirement of side slope stability against sliding.The stake bottom of the heavy in section stake 102 does not pass through stabilization basement rock pervious bed.It is described big
The height that the top of section stake 102 is higher by sliding surface 12 is b, and the depth in embedded stabilization basement rock 13 is c.Wherein, c >=3m, b >=1/
3c.102 upper surfaces of heavy in section stake are reserved with 4 vertical spilled water holes 1021.The diameter and number of the spilled water hole 1021 are expired
The requirement of sufficient pile body shearing strength and drainability.
Referring to Fig. 7, the small bore stake 101 and heavy in section stake 102 are square pile.The small bore stake 101 and heavy in section
The maximal side ratio of stake 102 is n, wherein 1/2 ＜ n ＜ 2/3.
Referring to Fig. 6, being wrapped on the outside of 101 weeks of small bore stake has peripheral rubble collection-draining circle 5.The peripheral rubble
Collection-draining circle 5 includes metalling 501 and loaded filter 502.
The loaded filter 502 is arranged at the top of heavy in section stake 102.The lower surface of the loaded filter 502 and heavy in section stake 102
Upper surface be close to.The lower surface of the connection loaded filter 502 of the spilled water hole 1021 and the lower surface of heavy in section stake 102.It is described anti-
The periphery of filtering layer 502 is coated with geotextiles 6, prevents level from causing sluicing hole plug 1021 to seepage flow.According to quilt in Practical Project
Protect the Cu values of soil to determine, 502 points of the loaded filter is 3 layers, fine sand layer 5021,5022 and of middle rough sand layer are followed successively by from top to bottom
Gravel layer 5023.It is f, wherein f≤2/3d that the gravel layer 5023 uses the maximum particle diameter of metaling.
The metalling 501 is arranged at the top of loaded filter 502.The lower surface of the metalling 501 is upper with loaded filter 502
It is close on surface.The metalling 501 is layered filling using level with uniform metaling, and 500mm is no more than per thickness degree.Rubble is most
Big particle diameter is a, wherein a≤200mm.The metalling 501 is less than small bore stake 101 stake top 200mm~300mm.
The top of the metalling 501 also has argillic horizon 15.The argillic horizon 15 is using the good clay pressure of water isolating
It is real to fill to stake top and grading.
The stake bottom of the armored concrete non-uniform pile 1 is also equipped with rubble drainage blanket 8.The rubble drainage blanket 8
Filling is layered with uniform metaling using level, thickness is 50~100mm.The rubble drainage blanket 8 includes coarse sand bed course 801
With blotter 802.The maximum particle diameter of metaling used by the rubble drainage blanket 8 is e, wherein e≤2/3d.
The bottom of rubble drainage blanket 8 also has 4 water-guiding holes 10.The water-guiding hole 10 reaches permeable through crack rock
Layer.The water-guiding hole 10 a diameter of d, wherein d >=100mm.The underground water collected in slip mass 11 is penetrated into by spilled water hole 1021
Rubble drainage blanket 8, and permeable crack rock layer discharge is imported by water-guiding hole 10.
Embodiment 3：
The present embodiment discloses a kind of rubble-non-uniform pile on having draining and AsA -GSH cycle described in embodiment 1 and is combined
The construction method of structure, comprises the following steps：
1) prefabricated reinforced concrete non-uniform pile 1.
2) according to geological conditions, stake holes to projected depth is excavated.A diameter of x of the stake holes, the diameter of heavy in section stake 102
It is y.Wherein, x-y=20~50mm.
3) rubble drainage blanket 8 is laid in stake holes bottom.
4) lifting armored concrete non-uniform pile 1, align piles position, the perpendicularity of adjustment armored concrete non-uniform pile 1, so
Armored concrete non-uniform pile 1 is put into stake holes to designed elevation afterwards.
5) stake holes design attitude is wrapped geotextiles 6, and layering applies loaded filter 502.
6) slicing and filling and it is compacted metalling 501 to design height.
7) on metalling 501 cover argillic horizon 15 to grading.
Embodiment 4：
The present embodiment discloses a kind of rubble-non-uniform pile on having draining and AsA -GSH cycle described in embodiment 2 and is combined
The construction method of structure, comprises the following steps：
1) prefabricated reinforced concrete non-uniform pile 1.
2) according to geological conditions, stake holes to projected depth is excavated.The maximal side of the stake holes is p, heavy in section stake 102
Maximal side is q.Wherein, p-q=20~50mm.
3) water-guiding hole 10 is drilled with foot of hole, rubble drainage blanket 8 is laid afterwards.
4) lifting armored concrete non-uniform pile 1, align piles position, the perpendicularity of adjustment armored concrete non-uniform pile 1, so
Armored concrete non-uniform pile 1 is put into stake holes to designed elevation afterwards.
5) stake holes design attitude is wrapped geotextiles 6, and layering applies loaded filter 502.
6) slicing and filling and it is compacted metalling 501 to design height.
7) on metalling 501 cover argillic horizon 15 to grading.
Claims (9)
1. a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction, it is characterised in that including：Implantation landslide
Armored concrete non-uniform pile (1) in body (11)；
The armored concrete non-uniform pile (1) includes small bore stake (101) and heavy in section stake (102)；The heavy in section stake
(102) it is arranged at the bottom of small bore stake (101)；Small bore stake (101) and heavy in section stake (102) are an entirety；
Heavy in section stake (102) through after sliding surface (12), it is embedded below stable basement rock (13) in；The heavy in section stake
(102) several vertical spilled water holes (1021) are reserved with；
Being wrapped on the outside of small bore stake (101) stake week has peripheral rubble collection-draining circle (5)；The peripheral rubble collection-draining circle
(5) including metalling (501) and loaded filter (502)；
The loaded filter (502) is arranged at heavy in section stake (102) top.The spilled water hole (1021) connection loaded filter (502)
Lower surface and the lower surface of heavy in section stake (102)；Loaded filter (502) periphery is coated with geotextiles (6)；
The metalling (501) is arranged at loaded filter (502) top；The metalling (501) matches somebody with somebody uniform metaling using level
Layering filling, 500mm is no more than per thickness degree；The maximum particle of crushed stone is a, wherein a≤200mm；Metalling (501) top surface
Less than small bore stake (101) stake top 200mm~300mm；
The top of the metalling (501) also has argillic horizon (15)；The argillic horizon (15) is using clay compacting filling to stake
Top and grading；
The stake bottom of the armored concrete non-uniform pile (1) is equipped with rubble drainage blanket (8)；The rubble drainage blanket (8)
Filling is layered with uniform metaling using level, thickness is 50~100mm；The underground water collected in slip mass (11) is by sluicing
Hole (1021) penetrates into rubble drainage blanket (8), and the pervious bed (14) discharge is reached afterwards.
2. a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction according to claim 1, its feature
It is：The height that heavy in section stake (102) top is higher by sliding surface (12) is b, and the depth in embedded stabilization basement rock (13) is
c；Wherein, c >=3m, b >=1/3c.Small bore stake (101) and heavy in section stake (102) are round stake；The small bore stake
(101) and heavy in section stake (102) stake footpath ratio be m, wherein 1/2 ＜ m ＜ 2/3.
3. a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction according to claim 1 and 2, its
It is characterised by：When the stake bottom of armored concrete non-uniform pile (1) passes through stablizes basement rock not up to pervious bed, rubble drainage blanket
(8) bottom also has several water-guiding holes (10)；The water-guiding hole (10) reaches pervious bed through crack rock；The water-guiding hole
(10) a diameter of d, wherein d >=100mm.
4. a kind of rubble with the draining and AsA -GSH cycle-non-uniform pile composite construction according to claim 1,2 or 3,
It is characterized in that：Small bore stake (101) and heavy in section stake (102) are square pile；Small bore stake (101) and heavy in section
The maximal side ratio of stake (102) is n, wherein 1/2 ＜ n ＜ 2/3.
5. a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction according to claim 1 and 2, its
It is characterised by：The rubble drainage blanket (8) includes coarse sand bed course (801) and blotter (802).
6. a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction according to claim 1 and 2, its
It is characterised by：There is pile body cage bar (1031) and pile body tie hoop (1032) in the armored concrete non-uniform pile (1)；Institute
State pile body cage bar (1031) and pile body tie hoop (1032) collectively forms steel reinforcement cage (103).
7. a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction according to claim 1 and 2, its
It is characterised by：The loaded filter (502) is divided into 3 layers, and fine sand layer (5021), middle rough sand layer (5022) and gravel are followed successively by from top to bottom
Rock layers (5023).
8. a kind of construction of the rubble with the draining and AsA -GSH cycle-non-uniform pile composite construction on described in claim 1
Method, it is characterised in that：Comprise the following steps：
1) prefabricated reinforced concrete non-uniform pile (1)；
2) according to geological conditions, stake holes to projected depth is excavated；The sectional dimension of the stake holes is cut more than heavy in section stake (102)
Face size；
3) rubble drainage blanket (8) is laid in stake holes bottom；
4) lifting armored concrete non-uniform pile (1), align piles position, the perpendicularity of adjustment armored concrete non-uniform pile (1), so
Armored concrete non-uniform pile (1) is put into stake holes to designed elevation afterwards；
5) stake holes design attitude is wrapped geotextiles (6), and layering applies loaded filter (502)；
6) slicing and filling and it is compacted metalling (501) to design height；
7) on metalling (501) cover argillic horizon (15) to and grading.
9. the construction of a kind of rubble with draining and AsA -GSH cycle-non-uniform pile composite construction according to claim 8
Method, it is characterised in that：Step 3) in, before the blotter of laying stake bottom, water-guiding hole (10) is also drilled with stake bottom.
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| CN201611023753.XA CN106759390B (en) | 2016-11-14 | 2016-11-14 | A kind of rubble-non-uniform pile composite construction and its construction method with draining and AsA -GSH cycle |
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| CN108277813A (en) * | 2018-01-26 | 2018-07-13 | 重庆交通大学 | The hollow friction pile of band discharge structure and its construction method |
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