CN104018490B - A kind of Z-shaped square-section friction pile and construction method thereof - Google Patents
A kind of Z-shaped square-section friction pile and construction method thereof Download PDFInfo
- Publication number
- CN104018490B CN104018490B CN201410199122.8A CN201410199122A CN104018490B CN 104018490 B CN104018490 B CN 104018490B CN 201410199122 A CN201410199122 A CN 201410199122A CN 104018490 B CN104018490 B CN 104018490B
- Authority
- CN
- China
- Prior art keywords
- face
- dorsal part
- section
- pile body
- horizontal hunche
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of Z-shaped square-section friction pile and construction method thereof, described Z-shaped square-section friction pile includes: upright pile body, dorsal part Horizontal hunche beam dough-making powder side Horizontal hunche beam, also include that dorsal part tiltedly holds in the palm dough-making powder skew back torr, described dorsal part Horizontal hunche beam is arranged on upright pile body dorsal part, and side, face Horizontal hunche beam is arranged on side, upright pile body face.Its advantage is: combine the spatial distribution characteristic of friction pile force modes and bending and shearing, the anti sliding with load function of the gravity pressure of Rock And Soil, the anti-pressure ability of good ground and Horizontal hunche beam after having given full play to stake and before stake, it is effectively improved pile body by force intensity, the bending resistance of raising friction pile and shear resistance；Anti-slide pile structure form performance simple, anti-skid is relatively strong, be prone to construction, is not only suitable for high gradient slope or foundation pit supporting project, is also applied for major landslip harnessing project；Use the construction method of artificial digging pile, there is bending resistance and shear resistance compared with the advantage such as strong, construction technology is simple, reliability is high, cost is low.
Description
Technical field
The present invention relates to major landslip improvement, high steep vertical side slope and Base hole supporting technology field, be specifically related to a kind of Z-shaped square-section friction pile and construction method thereof.
Background technology
Harnessing landslide, the measure of side slope at present mainly has draining, a gear, anchoring, loss of weight and back-pressure etc..Wherein friction pile prop up gear measure owing to himself having that rigidity is big, self-stability can preferably, easy construction, the consolidation effect advantage such as substantially, extensively applied in landslide control and side slope protection engineering.Friction pile operation principle is mainly by embedding making Thrust of Landslide or the side slope soil pressure balancing free segment Rock And Soil with passive resisting force of fixed section Rock And Soil, frictional resistance by Rock And Soil between stake with stake both sides forms soil arching effect simultaneously, Rock And Soil between stake is stoped to be extruded between stake so that landslide or side slope keep balance or stable.
In the design of existing friction pile single pile, pile body is the most all vertical pile structure, fails to take into full account the comprehensive utilization of Rock And Soil before and after stake and bending and the spatial distribution characteristic of shearing.When Thrust of Landslide or side slope soil pressure are bigger, often use and increase friction pile area of section and quantity of reinforcement or the measures such as prestress anchorage cable are set at pile body, to improve the anti-skid ability of friction pile self, reach to balance Thrust of Landslide or the purpose of side slope soil pressure.Increase friction pile area of section and quantity of reinforcement measure not only quantities is big, treatment cost is high, easily cause engineering waste, and when by land red-line or existing construction of structures space constraint, site operation difficulty is relatively big, limit effective use of tradition friction pile；Pile body arranges prestress anchorage cable measure, and owing to anchor cable is relatively costly, working procedure is loaded down with trivial details, and prestressd anchor cable increases over time and easily produces relaxation loss, the most not enough for permanent landslide or its reliability of Reinforcement Works of Rock Slopes.As can be seen here, how to take into full account comprehensive utilization and the stress characteristic of friction pile pile body of Rock And Soil before and after stake, the structural form of appropriate design friction pile, be highly important to cost-effective improvement major landslip and high steep vertical side slope.
Summary of the invention
The present invention seeks to for tradition anti-slide pile structure form limitation in administering major landslip and height steep vertical side slope engineering, in conjunction with friction pile force modes and bending and the spatial distribution characteristic of shearing, with the gravity pressure of Rock And Soil and the anti-pressure ability of good ground after making full use of stake, after stake as point of penetration, a kind of quantities performance little, cheap, anti-skid of offer is relatively strong, be prone to construction, and can be widely used in major landslip or the high suddenly Z-shaped square-section friction pile that vertical side slope is administered and construction method thereof.
One Z-shaped square-section of the present invention friction pile, including: upright pile body, dorsal part Horizontal hunche beam dough-making powder side Horizontal hunche beam；Dorsal part Horizontal hunche beam is arranged on upright pile body dorsal part, and side, face Horizontal hunche beam is arranged on side, upright pile body face.
Also include that dorsal part tiltedly holds in the palm, vertical with upright pile body on the upside of described dorsal part Horizontal hunche beam be connected, tiltedly held in the palm by dorsal part with upright pile body on the downside of dorsal part Horizontal hunche beam and be connected.
Also include face skew back torr, vertical with upright pile body on the downside of described side, face Horizontal hunche beam be connected, be connected by face skew back torr with upright pile body on the upside of the Horizontal hunche beam of side, face.
Described dorsal part Horizontal hunche beam is arranged on upright pile body dorsal part, away from Side Slope crack face or the slide surface above distance I of intersection point with upright pile body dorsal part that comes down1Not less than 3.0m；Described dorsal part Horizontal hunche beam passes through Side Slope crack face or landslide degree of depth I that extend in good ground of slide surface2Not less than 2.0m.
Described side, face Horizontal hunche beam is arranged on side, upright pile body face, distance I below the intersection point with side, upright pile body face away from Side Slope crack face or landslide slide surface3Not less than 3.0m.
Described upright pile body, dorsal part Horizontal hunche beam and side, face Horizontal hunche beam section shape are rectangle, and sectional dimension is identical, upright pile body cross-sectional width B1=dorsal part Horizontal hunche beam section width B2Side ,=face Horizontal hunche beam section width B4=2.0 ~ 3.0m, upright pile body depth of section H1=dorsal part Horizontal hunche beam section height H2Side ,=face Horizontal hunche beam section height H4=2.0~3.0m。
Described side, face Horizontal hunche beam length I4Upright pile body cross-sectional width B not less than 2 times1。
Described dorsal part tiltedly holds in the palm width B3With height H3It is 1.0 ~ 2.0m.
Described face skew back torr width B5With height H5It is 1.0 ~ 2.0m.
Described upright pile body is poured by armored concrete.
One Z-shaped square-section of the present invention anti-slide pile construction method, specifically comprises the following steps that
A, dorsal part Horizontal hunche beam epimere pile body pore-forming: use artificial vertical digging mode pore-forming, often excavate one section and pour one section of reinforced concrete core-tube in pore forming process, circulation construction is to dorsal part oblique backing face designed elevation；
Described circulation construction procedure is as follows: every section of vertical cut degree of depth preferably controls between 0.5 ~ 1.0m, and breast wall concrete uses C25 concrete, and thickness is not less than 20cm, and the preceding paragraph panelling construction can carry out next section of excavation after completing；
B, dorsal part Horizontal hunche Liang Liang body cavern pore-forming: use artificial horizontal digging mode pore-forming, often excavate one section and use the mode lining cutting one section such as anchor pole, spray concrete in pore forming process, circulation construction is to stretching into Side Slope crack face or the landslide slide surface degree of depth not less than 2.0m；
Described circulation construction procedure is as follows: every section of horizontal cutting depth preferably controls between 1.0 ~ 2.0m, lining cutting mode is adjusted flexibly according to driving stratum characteristic, spray concrete and combining anchor is used to carry out lining cutting in soft rock or scall, using spray concrete to carry out lining cutting in other stratum, the preceding paragraph lining construction can carry out next section of excavation after completing；
C, dorsal part Horizontal hunche beam steel cage fabrication and installation: reinforcing bar uses usual manner to weld in Liang Shen cavern, steel reinforcement cage is from the progressively fabrication and installation toward hole of cavern's face, during fabrication and installation, Horizontal hunche beam main tendon should stretch out hole not less than 35 times of main muscle diameter lengths, and is bent in cavern；
Described welding step is as follows: use quincunx spot welding between the main muscle of beam body and stirrup, uses overlap welding, fusion length to be not less than 10 times of main muscle diameters between main muscle and main muscle；
Section pile body pore-forming between d, dorsal part Horizontal hunche beam and side, face Horizontal hunche beam: use artificial vertical digging mode pore-forming, pore forming process is often excavated one section and pours one section of reinforced concrete core-tube, circulation construction is to Horizontal hunche soffit, side, face designed elevation, and described circulation form of construction work is identical with step a；
E, Horizontal hunche Liang Liang body cavern, side, face pore-forming: use artificial horizontal digging mode pore-forming, pore forming process is often excavated one section and uses the mode lining cutting one section such as anchor pole, spray concrete, circulation construction, Horizontal hunche Liang Liang body cavern, side, the face length upright pile body cross-sectional width not less than 2 times, described circulation form of construction work is identical with step b；
F, the Horizontal hunche beam steel cage fabrication and installation of side, face: reinforcing bar uses usual manner to weld in Liang Shen cavern, steel reinforcement cage is from the progressively fabrication and installation toward hole of cavern's face, during fabrication and installation, Horizontal hunche beam main tendon should stretch out hole not less than 35 times of main muscle diameter lengths, and be bent in cavern, so that side, later stage face Horizontal hunche beam main tendon muscle main with pile body welds, not affecting pile body pore-forming and steel reinforcement cage construction, described steel reinforcement cage welding manner is identical with step c simultaneously；
G, side, face Horizontal hunche beam hypomere pile body pore-forming: use artificial vertical digging mode pore-forming, often excavate one section and pour one section of reinforced concrete core-tube in pore forming process, circulation construction is to designed elevation at the bottom of friction pile stake, and described circulation work progress is identical with step a；
H, upright pile body fabrication of reinforcing cage are installed: pile body steel reinforcement cage uses usual manner to weld outside stake holes, pile body stirrup is encrypted in dorsal part Horizontal hunche beam dough-making powder side Horizontal hunche beam splice upper and lower 2.0m scope, use crane by fixing in the stake holes of reinforcing bar cage hoisting to excavation after completing, and in dorsal part Horizontal hunche beam, side, face Horizontal hunche beam and pile body joint, dorsal part Horizontal hunche beam, side, face Horizontal hunche beam main tendon muscle main with pile body being welded, described steel reinforcement cage welding manner is identical with step c；
The upright pile body of i, friction pile, dorsal part Horizontal hunche beam and the Horizontal hunche beam concreting of side, face: use pump concrete to pour the upright pile body of friction pile, dorsal part Horizontal hunche beam and side, face Horizontal hunche beam, every continuous pouring 0.5～0.7m in casting process, using immersion vibrator vibration compacting 1 time, the distance in immersion vibrator tumbling barrel or conduit end opening and concreting face preferably controls between 1.0～3.0m.
The technological merit of the present invention a kind of Z-shaped square-section friction pile and construction method thereof is as follows:
(1) spatial distribution characteristic of friction pile force modes and bending and shearing is combined, the anti sliding with load function of the gravity pressure of Rock And Soil, the anti-pressure ability of good ground and Horizontal hunche beam after having given full play to stake and before stake, effectively improve pile body by force intensity, improve bending resistance and the shear resistance of friction pile.
(2) anti-slide pile structure form performance simple, anti-skid is relatively strong, be prone to construction, is not only suitable for high gradient slope or foundation pit supporting project, is also applied for major landslip harnessing project.
(3) primitive form uses the construction method of artificial digging pile, the advantage inheriting it, has bending resistance and shear resistance compared with the advantage such as strong, construction technology is simple, reliability is high, cost is low.
Accompanying drawing explanation
Fig. 1 is a kind of Z-shaped of present invention square-section friction pile layout schematic diagram in slope support engineering.
Fig. 2 is a kind of Z-shaped of present invention square-section friction pile layout schematic diagram in landslide control engineering.
Fig. 3 is the cross-sectional view of a kind of Z-shaped of present invention square-section friction pile.
Fig. 4 is the plan structure schematic diagram of a kind of Z-shaped of present invention square-section friction pile.
Fig. 5 is the shearing distribution schematic diagram of one Z-shaped square-section of the present invention friction pile operation principle.
Fig. 6 is the Bending moment distribution schematic diagram of one Z-shaped square-section of the present invention friction pile operation principle.
In Fig. 7, a, b, c, d, e, f, g, h, i are the construction technology process schematic diagram of a kind of Z-shaped of present invention square-section anti-slide pile construction method.
In figure: the upright pile body of 1-, 2-dorsal part Horizontal hunche beam, 3-dorsal part tiltedly holds in the palm, side, 4-face Horizontal hunche beam, 5-face skew back torr, Rock And Soil after 6-stake, 7-Side Slope crack face, and 8-comes down slide surface, 9-good ground, H1-upright pile body depth of section, H2-dorsal part Horizontal hunche beam section height, H3-dorsal part tiltedly holds in the palm height, H4Side ,-face Horizontal hunche beam section height, H5-face skew back torr height, B1-upright pile body cross-sectional width, B2-dorsal part Horizontal hunche beam section width, B3-dorsal part tiltedly holds in the palm width, B4Side ,-face Horizontal hunche beam section width, B5-face skew back torr width, I1-dorsal part Horizontal hunche beam is away from Side Slope crack face or the slide surface distance with upright pile body dorsal part intersection point that comes down, I2-dorsal part Horizontal hunche beam passes through Side Slope crack face or the landslide degree of depth that extend in good ground of slide surface, I3Side ,-face Horizontal hunche beam is away from Side Slope crack face or the slide surface distance with upright pile body face top-cross point that comes down, I4The length of side ,-face Horizontal hunche beam.
Detailed description of the invention
Shown in root Ju Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of Z-shaped square-section friction pile, including: upright pile body 1, dorsal part Horizontal hunche beam 2 dough-making powder side Horizontal hunche beam 4；Dorsal part Horizontal hunche beam 2 is arranged on upright pile body 1 dorsal part, and side, face Horizontal hunche beam 4 is arranged on 1 side of upright pile body.
Also include that dorsal part tiltedly holds in the palm 3, vertical with upright pile body 1 on the upside of described dorsal part Horizontal hunche beam 2 be connected, on the downside of dorsal part Horizontal hunche beam 2, tiltedly ask 3 to be connected with upright pile body 1 by dorsal part.
Also include face skew back torr 5, vertical with upright pile body 1 on the downside of described side, face Horizontal hunche beam 4 be connected, be connected by face skew back torr 5 with upright pile body 1 on the upside of side, face Horizontal hunche beam 4.
Described dorsal part Horizontal hunche beam 2 is arranged on upright pile body 1 dorsal part, away from Side Slope crack face 7 or the slide surface 8 above distance I of intersection point with upright pile body 1 dorsal part that comes down1Not less than 3.0m；Described dorsal part Horizontal hunche beam 2 passes through Side Slope crack face 7 or landslide slide surface 8 extend into degree of depth I in good ground 92Not less than 2.0m.
Described side, face Horizontal hunche beam 4 is arranged on 1 side of upright pile body, distance I below the intersection point with upright 1 side of pile body away from Side Slope crack face 7 or landslide slide surface 83Not less than 3.0m.
Described upright pile body 1, dorsal part Horizontal hunche beam 2 and side, face Horizontal hunche beam 4 cross sectional shape are rectangle, and sectional dimension is identical, upright pile body 1 cross-sectional width B1=dorsal part Horizontal hunche beam 2 cross-sectional width B2Side ,=face Horizontal hunche beam 4 cross-sectional width B4=2.0 ~ 3.0m, upright pile body 1 depth of section H1=dorsal part Horizontal hunche beam 2 depth of section H2Side ,=face Horizontal hunche beam 4 depth of section H4=2.0~3.0m。
Described side, face Horizontal hunche beam 4 length I4Upright pile body 1 cross-sectional width B not less than 2 times1。
Described dorsal part tiltedly holds in the palm 3 width B3With height H3It is 1.0 ~ 2.0m.
Described face skew back torr 5 width B5With height H5It is 1.0 ~ 2.0m.
Described upright pile body 1 is poured by armored concrete.
Root Ju Fig. 5, shown in Fig. 6, the operation principle of a kind of Z-shaped of present invention square-section friction pile is: be respectively provided with one Horizontal hunche beam at the certain depth of upright pile body dorsal part dough-making powder side, and dorsal part Horizontal hunche beam 2 is passed through potential slide surface extend in good ground, side, face Horizontal hunche beam 4 is placed in the good ground of below potential slide surface, during friction pile work, the gravity pressure that dorsal part Horizontal hunche beam 2 is provided by Rock And Soil 6 after stake, give full play to its anti sliding with load function, effectively reduce Thrust of Landslide or side slope soil pressure that upright pile body 1 is undertaken；When dorsal part Horizontal hunche beam 2 and upright pile body 1 cooperative bearing, after stake, Rock And Soil 6 can produce a resist torque contrary with Thrust of Landslide or side slope soil pressure action moment on the upside of dorsal part Horizontal hunche beam 2；When side, face Horizontal hunche beam 4 and upright pile body 1 cooperative bearing, good ground 9 can produce a resist torque contrary with Thrust of Landslide or side slope soil pressure action moment on the downside of side, face Horizontal hunche beam 4；Dorsal part Horizontal hunche beam 2 dough-making powder side Horizontal hunche beam 4 self also shares Partial Shear simultaneously, thus improve bending resistance and the shear resistance of friction pile, reduce friction pile fixed section length, sectional dimension and quantity of reinforcement, decrease construction costs, utilize the gravity pressure of Rock And Soil before stake, the overall structure that the anti-pressure ability of good ground and the back of the body, side, face Horizontal hunche beam are constituted with pile body, effectively improve pile body by force intensity, improve bending resistance and the shear resistance of friction pile, enhance the regulation effect of friction pile.
As it is shown in fig. 7, a kind of Z-shaped square-section anti-slide pile construction method, specifically comprise the following steps that
A, dorsal part Horizontal hunche beam epimere pile body pore-forming: use artificial vertical digging mode pore-forming, often excavate one section and pour one section of reinforced concrete core-tube in pore forming process, circulation construction is to dorsal part oblique backing face designed elevation；
Described circulation construction procedure is as follows: every section of vertical cut degree of depth preferably controls between 0.5 ~ 1.0m, and breast wall concrete uses C25 concrete, and thickness is not less than 20cm, and the preceding paragraph panelling construction can carry out next section of excavation after completing；
B, dorsal part Horizontal hunche Liang Liang body cavern pore-forming: use artificial horizontal digging mode pore-forming, often excavate one section and use the mode lining cutting one section such as anchor pole, spray concrete in pore forming process, circulation construction is to stretching into Side Slope crack face or the landslide slide surface degree of depth not less than 2.0m；
Described circulation construction procedure is as follows: every section of horizontal cutting depth preferably controls between 1.0 ~ 2.0m, lining cutting mode is adjusted flexibly according to driving stratum characteristic, spray concrete and combining anchor is used to carry out lining cutting in soft rock or scall, using spray concrete to carry out lining cutting in other stratum, the preceding paragraph lining construction can carry out next section of excavation after completing；
C, dorsal part Horizontal hunche beam steel cage fabrication and installation: reinforcing bar uses usual manner to weld in Liang Shen cavern, steel reinforcement cage is from the progressively fabrication and installation toward hole of cavern's face, during fabrication and installation, Horizontal hunche beam main tendon should stretch out hole not less than 35 times of main muscle diameter lengths, and be bent in cavern, so that later stage dorsal part Horizontal hunche beam main tendon muscle main with pile body welds, do not affect pile body pore-forming and steel reinforcement cage construction simultaneously；
Described welding step is as follows: use quincunx spot welding between the main muscle of beam body and stirrup, uses overlap welding, fusion length to be not less than 10 times of main muscle diameters between main muscle and main muscle；
Section pile body pore-forming between d, dorsal part Horizontal hunche beam and side, face Horizontal hunche beam: use artificial vertical digging mode pore-forming, pore forming process is often excavated one section and pours one section of reinforced concrete core-tube, circulation construction is to Horizontal hunche soffit, side, face designed elevation, and described circulation form of construction work is identical with step a；
E, Horizontal hunche Liang Liang body cavern, side, face pore-forming: use artificial horizontal digging mode pore-forming, pore forming process is often excavated one section and uses the mode lining cutting one section such as anchor pole, spray concrete, circulation construction, Horizontal hunche Liang Liang body cavern, side, the face length upright pile body cross-sectional width not less than 2 times, described circulation form of construction work is identical with step b；
F, the Horizontal hunche beam steel cage fabrication and installation of side, face: reinforcing bar uses usual manner to weld in Liang Shen cavern, steel reinforcement cage is from the progressively fabrication and installation toward hole of cavern's face, during fabrication and installation, Horizontal hunche beam main tendon should stretch out hole not less than 35 times of main muscle diameter lengths, and be bent in cavern, so that side, later stage face Horizontal hunche beam main tendon muscle main with pile body welds, not affecting pile body pore-forming and steel reinforcement cage construction, described steel reinforcement cage welding manner is identical with step c simultaneously；
G, side, face Horizontal hunche beam hypomere pile body pore-forming: use artificial vertical digging mode pore-forming, often excavate one section and pour one section of reinforced concrete core-tube in pore forming process, circulation construction is to designed elevation at the bottom of friction pile stake, and described circulation work progress is identical with step a；
H, upright pile body fabrication of reinforcing cage are installed: pile body steel reinforcement cage uses usual manner to weld outside stake holes, pile body stirrup is encrypted in dorsal part Horizontal hunche beam dough-making powder side Horizontal hunche beam splice upper and lower 2.0m scope, use crane by fixing in the stake holes of reinforcing bar cage hoisting to excavation after completing, and in dorsal part Horizontal hunche beam, side, face Horizontal hunche beam and pile body joint, dorsal part Horizontal hunche beam, side, face Horizontal hunche beam main tendon muscle main with pile body being welded, described steel reinforcement cage welding manner is identical with step c；
The upright pile body of i, friction pile, dorsal part Horizontal hunche beam and the Horizontal hunche beam concreting of side, face: use pump concrete to pour the upright pile body of friction pile, dorsal part Horizontal hunche beam and side, face Horizontal hunche beam, and carry out maintenance, every continuous pouring 0.5～0.7m in casting process, using immersion vibrator vibration compacting 1 time, the distance in immersion vibrator tumbling barrel or conduit end opening and concreting face preferably controls between 1.0～3.0m.
Claims (9)
1. a Z-shaped square-section friction pile, it is characterised in that: including: upright pile body (1), dorsal part
Horizontal hunche beam (2) dough-making powder side Horizontal hunche beam (4)；Dorsal part Horizontal hunche beam (2) is arranged on upright stake
Body (1) dorsal part, side, face Horizontal hunche beam (4) is arranged on upright pile body (1) side, face；Described dorsal part water
Flat haunched beam (2) is arranged on upright pile body (1) dorsal part, away from Side Slope crack face (7) or landslide slide surface (8)
Above distance I of intersection point with upright pile body (1) dorsal part1Not less than 3.0m；Described dorsal part Horizontal hunche beam (2)
Pass through Side Slope crack face (7) or landslide slide surface (8) and extend into degree of depth I in good ground (9)2The least
In 2.0m.
A kind of Z-shaped square-section the most according to claim 1 friction pile, it is characterised in that: also wrap
Including dorsal part tiltedly to hold in the palm (3), described dorsal part Horizontal hunche beam (2) upside is vertical with upright pile body (1) to be connected,
Dorsal part Horizontal hunche beam (2) downside tiltedly asks (3) to be connected with upright pile body (1) by dorsal part.
A kind of Z-shaped square-section the most according to claim 1 and 2 friction pile, it is characterised in that:
Also including face skew back torr (5), described downside, side, face Horizontal hunche beam (4) is vertical with upright pile body (1)
Connecting, upside, side, face Horizontal hunche beam (4) is connected by face skew back torr (5) with upright pile body (1).
A kind of Z-shaped square-section the most according to claim 1 friction pile, it is characterised in that: described
Side, face Horizontal hunche beam (4) be arranged on upright pile body (1) side, face, away from Side Slope crack face (7) or landslide
Distance I below the intersection point of slide surface (8) and upright pile body (1) side, face3Not less than 3.0m.
A kind of Z-shaped square-section the most according to claim 1 friction pile, it is characterised in that: described
Upright pile body (1), dorsal part Horizontal hunche beam (2) and side, face Horizontal hunche beam (4) cross sectional shape be
Rectangle, and sectional dimension is identical, upright pile body (1) cross-sectional width B1=dorsal part Horizontal hunche beam (2) cross section
Width B2Side ,=face Horizontal hunche beam (4) cross-sectional width B4=2.0～3.0m, upright pile body (1) depth of section
H1=dorsal part Horizontal hunche beam (2) depth of section H2Side ,=face Horizontal hunche beam (4) depth of section H4=2.0～3.0m.
A kind of Z-shaped square-section the most according to claim 1 friction pile, it is characterised in that: described
Side, face Horizontal hunche beam (4) length I4Upright pile body (1) cross-sectional width B not less than 2 times1。
A kind of Z-shaped square-section the most according to claim 2 friction pile, it is characterised in that: described
Dorsal part tiltedly hold in the palm (3) width B3With height H3It is 1.0～2.0m.
A kind of Z-shaped square-section the most according to claim 3 friction pile, it is characterised in that: described
Face skew back torr (5) width B5With height H5It is 1.0～2.0m.
9. a Z-shaped square-section anti-slide pile construction method, specifically comprises the following steps that
A, dorsal part Horizontal hunche beam epimere pile body pore-forming: use artificial vertical digging mode pore-forming, pore forming process
In often excavate one section and pour one section of reinforced concrete core-tube, circulation construction is to dorsal part oblique backing face designed elevation；
Described circulation construction procedure is as follows: every section of vertical cut severity control is between 0.5～1.0m, and retaining wall mixes
Solidifying soil uses C25 concrete, and thickness is not less than 20cm, and the preceding paragraph panelling construction can carry out next section after completing and open
Dig；
B, dorsal part Horizontal hunche Liang Liang body cavern pore-forming: use artificial horizontal digging mode pore-forming, pore forming process
In often excavate one section use anchor pole, spray concrete mode lining cutting one section, circulation construction to stretching into Side Slope crack face or cunning
The slope slide surface degree of depth is not less than 2.0m；
Described circulation construction procedure is as follows: every section of horizontal cutting depth controls between 1.0～2.0m, lining cutting side
Formula is adjusted flexibly according to driving stratum characteristic, uses spray concrete and combining anchor to carry out in soft rock or scall
Lining cutting, uses spray concrete to carry out lining cutting in other stratum, the preceding paragraph lining construction can carry out next section after completing
Excavation；
C, dorsal part Horizontal hunche beam steel cage fabrication and installation: reinforcing bar uses usual manner to carry out in Liang Shen cavern
Welding, steel reinforcement cage is from the progressively fabrication and installation toward hole of cavern's face, Horizontal hunche beam during fabrication and installation
Main muscle should stretch out hole and be not less than 35 times of main muscle diameter lengths, and is bent in cavern；
Described welding step is as follows: uses quincunx spot welding between the main muscle of beam body and stirrup, adopts between main muscle and main muscle
With overlap welding, fusion length is not less than 10 times of main muscle diameters；
Section pile body pore-forming between d, dorsal part Horizontal hunche beam and side, face Horizontal hunche beam: use artificial vertical excavation
Mode pore-forming, often excavates one section and pours one section of reinforced concrete core-tube in pore forming process, circulation construction is to side, face
Horizontal hunche soffit designed elevation, described circulation form of construction work is identical with step a；
E, Horizontal hunche Liang Liang body cavern, side, face pore-forming: use artificial horizontal digging mode pore-forming, pore forming process
In often excavate one section use anchor pole, spray concrete mode lining cutting one section, circulation construction, side, face Horizontal hunche beam beam body
Cavern's length upright pile body cross-sectional width not less than 2 times, described circulation form of construction work is identical with step b；
F, the Horizontal hunche beam steel cage fabrication and installation of side, face: reinforcing bar uses usual manner to carry out in Liang Shen cavern
Welding, steel reinforcement cage is from the progressively fabrication and installation toward hole of cavern's face, Horizontal hunche beam during fabrication and installation
Main muscle should stretch out hole and be not less than 35 times of main muscle diameter lengths, and is bent in cavern, in order to side, later stage face water
Flat haunch beam main tendon muscle main with pile body welds, and does not affect pile body pore-forming and steel reinforcement cage construction simultaneously, described
Steel reinforcement cage welding manner is identical with step c；
G, side, face Horizontal hunche beam hypomere pile body pore-forming: use artificial vertical digging mode pore-forming, pore forming process
In often excavate one section and pour one section of reinforced concrete core-tube, circulation construction is to designed elevation at the bottom of friction pile stake, institute
State circulation work progress identical with step a；
H, upright pile body fabrication of reinforcing cage are installed: pile body steel reinforcement cage uses usual manner to weld outside stake holes,
Pile body stirrup is encrypted in dorsal part Horizontal hunche beam dough-making powder side Horizontal hunche beam splice upper and lower 2.0m scope, system
Use after completing crane by fixing in the stake holes of reinforcing bar cage hoisting to excavation, and dorsal part Horizontal hunche beam,
Side, face Horizontal hunche beam and pile body joint, by dorsal part Horizontal hunche beam, side, face Horizontal hunche beam main tendon and stake
The main muscle of body welds, and described steel reinforcement cage welding manner is identical with step c；
The upright pile body of i, friction pile, dorsal part Horizontal hunche beam and the Horizontal hunche beam concreting of side, face: use
Pump concrete pours the upright pile body of friction pile, dorsal part Horizontal hunche beam and side, face Horizontal hunche beam, pours
Every continuous pouring 0.5～0.7m in journey, uses immersion vibrator vibration compacting 1 time, immersion vibrator string
The distance controlling in cylinder or conduit end opening and concreting face is between 1.0～3.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199122.8A CN104018490B (en) | 2014-05-13 | 2014-05-13 | A kind of Z-shaped square-section friction pile and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199122.8A CN104018490B (en) | 2014-05-13 | 2014-05-13 | A kind of Z-shaped square-section friction pile and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104018490A CN104018490A (en) | 2014-09-03 |
| CN104018490B true CN104018490B (en) | 2016-08-31 |
Family
ID=51435463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410199122.8A Active CN104018490B (en) | 2014-05-13 | 2014-05-13 | A kind of Z-shaped square-section friction pile and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104018490B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836244A (en) * | 2017-01-17 | 2017-06-13 | 浙江工业大学 | Method for protecting steep slope roadbed by combining anti-slide piles and gabion high retaining wall |
| CN108330986A (en) * | 2018-04-11 | 2018-07-27 | 王凯 | Back-pressure de-bowed type pile slab supporting structure and construction method after stake |
| CN108265733A (en) * | 2018-04-11 | 2018-07-10 | 王凯 | Build-in soil body restricted type pile slab supporting structure and construction method before stake |
| CN110472313B (en) * | 2019-07-29 | 2022-05-10 | 西南石油大学 | Method for calculating anti-slip width of homogeneous rock mass in front of anti-slip pile |
| CN110952573A (en) * | 2019-12-03 | 2020-04-03 | 清华大学 | L-shaped slide-resistant pile for reinforcing soil slope by water level change belt and construction method thereof |
| CN113216217B (en) * | 2021-03-25 | 2022-12-20 | 三峡大学 | Exhibition arm formula friction pile |
| CN113221204B (en) * | 2021-03-25 | 2022-06-03 | 三峡大学 | Expansion arm type drainage slide-resistant pile and structure calculation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001207463A (en) * | 2000-01-24 | 2001-08-03 | Shimizu Corp | Foundation construction using phc pile, and phc pile and its work method |
| JP5075090B2 (en) * | 2008-10-30 | 2012-11-14 | 公益財団法人鉄道総合技術研究所 | Cast-in-place pile construction method and cast-in-place pile |
| CN101672034A (en) * | 2009-10-19 | 2010-03-17 | 大连理工大学 | Vibratory pile hammer for cast-in-situ bellout wedge-shaped reinforced concrete pile and construction method |
| CN201605591U (en) * | 2009-12-14 | 2010-10-13 | 三峡大学 | T-shaped anti-slide pile |
| CN202881969U (en) * | 2012-07-30 | 2013-04-17 | 深圳市工勘岩土工程有限公司 | Semi-assembled type soil blocking wall for soil filling side slope |
| CN203855953U (en) * | 2014-05-13 | 2014-10-01 | 中冶集团武汉勘察研究院有限公司 | Anti-slide pile with Z shaped rectangular section |
-
2014
- 2014-05-13 CN CN201410199122.8A patent/CN104018490B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104018490A (en) | 2014-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104018490B (en) | A kind of Z-shaped square-section friction pile and construction method thereof | |
| CN103452147B (en) | Self-balancing anchor counterweight broken pile forced-landing tilt correcting method | |
| CN103388341B (en) | Large-sized piled raft foundation structure and construction method | |
| CN204000901U (en) | The vertical high slope prestressing anchor support of a kind of massif device | |
| CN106498950B (en) | Anchor head is placed in the implementation method of the Pile-Anchor Supporting for Deep Excavation system of pile body | |
| CN203782684U (en) | Anti-skid pile provided with crossbeam | |
| CN107119699A (en) | A kind of friction pile and its construction method based on the beam of uniform strength | |
| CN106759442A (en) | A kind of single-pile elevated bearing-platform and anchor cable tower-crane foundation structure and its construction method | |
| CN101899837A (en) | Active anti-shear concrete supporting structure for reinforcing deep sliding surfaces of rock slopes | |
| CN105133575B (en) | Suspended formwork supporting device for casting lining on surface of underground continuous wall and construction method | |
| CN111119198A (en) | A reinforced structure that is used for SMW worker method stake to strut system | |
| CN112252342A (en) | Steel wire grid net protection and construction method for rock slope broken rock mass | |
| CN206408630U (en) | Anchor head is placed in the Pile-Anchor Supporting for Deep Excavation system of pile body | |
| CN109505641A (en) | A kind of soft-rock tunnel bottom plate anchor pouring reinforcement method | |
| CN106638674B (en) | A kind of band anchor retaining wall and design method combined with main structure | |
| CN110055973B (en) | Foundation pit enclosure structure under high-speed railway bridge with limited construction space and water stopping method | |
| CN104018496B (en) | A kind of pile body arranges circular cross-section friction pile and the construction method thereof of Horizontal hunche beam | |
| CN201649076U (en) | Inversed Y-type single-row unidirectional rotary spraying, mixing and reinforcing combined tangent pile | |
| CN206972268U (en) | A kind of extrusion pressing type weak surrounding rock large section tunnel support system | |
| CN205822206U (en) | A kind of vertical side slope bracing means | |
| CN206457843U (en) | A kind of band anchor retaining wall being combined with agent structure | |
| CN104018495B (en) | Bilateral haunched beam circular section anti-slide pile and construction method thereof | |
| CN212452655U (en) | A reinforced structure that is used for SMW worker method stake to strut system | |
| CN208472713U (en) | A kind of composite structure mini pile for administering small-sized landslide | |
| CN207160041U (en) | Anchor rod type artificial digging pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |