CN104018495B - Bilateral haunched beam circular section anti-slide pile and construction method thereof - Google Patents
Bilateral haunched beam circular section anti-slide pile and construction method thereof Download PDFInfo
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- CN104018495B CN104018495B CN201410199125.1A CN201410199125A CN104018495B CN 104018495 B CN104018495 B CN 104018495B CN 201410199125 A CN201410199125 A CN 201410199125A CN 104018495 B CN104018495 B CN 104018495B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a bilateral haunched beam circular anti-slide pile and a construction method thereof. The bilateral haunched beam circular anti-slide pile comprises a circular upright pile body, a back side circular horizontal haunched beam and a face side circular horizontal haunched beam and further comprises a back side inclined support and a face side installation support. The back side circular horizontal haunched beam is arranged on the back side of the circular upright pile body, and the face side circular horizontal haunched beam is arranged on the face side of the circular upright pile body. The bilateral haunched beam circular anti-slide pile and the construction method thereof have the advantages that dead weight pressure of rock bodies before and behind the pile, the anti-pressure capability of the standing ground and the load bearing and slide resisting functions of the horizontal haunced beams are given full play according to the stress mode of the anti-slide pile and the space distribution feature of the bending moment and shearing force of the pile body, the stress strength of the pile body is improved, and the bending resisting and shearing resisting capabilities of the anti-slide pile are improved. The anti-slide pile is simple in structural type, high in anti-slide performance, easy to construct, suitable for high and steep slope or foundation pit engineering and also suitable for large landslide control engineering. The construction method of forming holes through a dry method by adopting a rotary excavating machine is adopted, the construction effect is high, the maneuvering characteristics are high, and safety coefficients are high.
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 bilateral haunched beam retailing piles with round section 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.Friction pile cross section mainly has rectangle and circle two kinds, and wherein artificial digging pile mostly is rectangle, and such bending resistance and shear behavior are preferable, but the construction period is longer, and cost is higher；Mechanical hole perfusion post mostly is circular, and such pile driving construction duration is shorter, and cost is relatively low, but bending resistance and shear behavior are poor, and reliability is relatively low.
In the design of existing friction pile single pile, either rectangle or circular friction pile, its 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 bilateral haunched beam retailing piles with round section that vertical side slope is administered and construction method thereof.
One bilateral haunched beam retailing piles with round section of the present invention, including: circular upright pile body, dorsal part circular horizontal haunched beam dough-making powder side circular horizontal haunched beam；Dorsal part circular horizontal haunched beam is arranged on circular upright pile body dorsal part, and side, face circular horizontal haunched beam is arranged on circular upright side, pile body face.
Also including that dorsal part tiltedly holds in the palm, on the upside of described dorsal part circular horizontal haunched beam, pile body upright with circle is vertical is connected, and on the downside of dorsal part circular horizontal haunched beam, pile body upright with circle is tiltedly held in the palm by dorsal part and be connected.
Also including face skew back torr, on the downside of described side, face circular horizontal haunched beam, pile body upright with circle is vertical is connected, and on the upside of the circular horizontal haunched beam of side, face, pile body upright with circle is connected by face skew back torr.
Described dorsal part circular horizontal haunched beam is arranged on circular upright pile body dorsal part, away from Side Slope crack face or the slide surface above distance I of intersection point with circle upright pile body dorsal part that comes down1Not less than 2.0m；Described dorsal part circular horizontal haunched beam passes through Side Slope crack face or landslide degree of depth I that extend in good ground of slide surface2Circular upright pile body diameter D not less than 2 times1。
Described side, face circular horizontal haunched beam is arranged on circular upright side, pile body face, distance I below the intersection point with side, circle upright pile body face away from Side Slope crack face or landslide slide surface3Not less than 2.0m.
Circular upright pile body diameter of section D1, dorsal part circular horizontal haunched beam diameter of section D2And side, face circular horizontal haunched beam diameter of section D3Identical, D1=D2=D3=1.5~2.0m。
Described side, face circular horizontal haunched beam length I4Circular upright pile body diameter D not less than 3 times1。
Described dorsal part tiltedly holds in the palm width B1With height H1It is 1.0 ~ 2.0m.
Described face skew back torr width B2With height H2It is 1.0 ~ 2.0m.
Described circular upright pile body is poured by armored concrete.
One bilateral haunched beam retailing piles with round section construction method of the present invention, specifically comprises the following steps that
A, dorsal part circular horizontal haunched beam epimere pile body pore-forming: use Spiral digging machine dry method pore-forming, bury steel pile casting before creeping into underground, creep into and utilize the clear hole of Spiral digging machine augers to the designed elevation of dorsal part oblique backing face；
Described casing uses wall thickness 5 ~ 8mm steel plate to roll, internal diameter 20cm bigger than pile body diameter, highly 2m；
B, dorsal part circular horizontal haunched beam Liang Shen cavern pore-forming: use artificial horizontal digging mode pore-forming, often excavating one section in pore forming process and use the mode lining cutting one section such as anchor pole, spray concrete, circulation construction is to stretching into Side Slope crack face or the landslide slide surface degree of depth circular upright pile body diameter not less than 2 times；
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 circular horizontal haunched beam fabrication of reinforcing cage are installed: 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 circular horizontal haunched beam and side, face circular horizontal haunched beam: use Spiral digging machine dry method pore-forming, steel pile casting is buried underground before creeping into, creeping into the designed elevation of Horizontal hunche soffit, side, face and utilize the clear hole of Spiral digging machine augers, circulation form of construction work is identical with step a；
E, circular horizontal haunched beam Liang Shen 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 circular upright pile body diameter not less than 3 times, circulation form of construction work is identical with step b；
F, side, face circular horizontal haunched beam fabrication of reinforcing cage are installed: 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, steel reinforcement cage welding manner is identical with step c；
G, side, face circular horizontal haunched beam hypomere pile body pore-forming: use Spiral digging machine dry method pore-forming, bury steel pile casting underground, creep into designed elevation at the bottom of friction pile stake and utilize the clear hole of Spiral digging machine augers before creeping into, circulation work progress is identical with step a；
H, circular upright pile body fabrication of reinforcing cage is installed: pile body steel reinforcement cage uses usual manner to weld outside stake holes, pile body stirrup is encrypted in dorsal part circular horizontal haunched beam dough-making powder side circular horizontal haunched beam joint upper and lower 2.0m scope, use crane by fixing in the stake holes of reinforcing bar cage hoisting to excavation after completing, and at dorsal part circular horizontal haunched beam, side, face circular horizontal haunched beam and circle upright pile body joint, by dorsal part circular horizontal haunched beam, the circular horizontal haunch beam main tendon main muscle of pile body upright with circle in side, face welds, steel reinforcement cage welding manner is identical with step c；
The circular upright pile body of i, friction pile, dorsal part circular horizontal haunched beam and the circular horizontal haunched beam concreting of side, face: use pump concrete to pour the circular upright pile body of friction pile, dorsal part circular horizontal haunched beam and side, face circular horizontal haunched 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 bilateral haunched beam retailing piles with round section 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 Spiral digging machine dry method pore-forming, the advantage inheriting it, has that construction effect is high, mobility strong, safety coefficient advantages of higher.
Accompanying drawing explanation
Fig. 1 is the present invention a kind of bilateral haunched beam retailing piles with round section layout schematic diagram in slope support engineering.
Fig. 2 is the present invention a kind of bilateral haunched beam retailing piles with round section layout schematic diagram in landslide control engineering.
Fig. 3 is the cross-sectional view of the present invention a kind of bilateral haunched beam retailing piles with round section.
Fig. 4 is the plan structure schematic diagram of the present invention a kind of bilateral haunched beam retailing piles with round section.
Fig. 5 is the shearing distribution schematic diagram of one bilateral haunched beam retailing piles with round section operation principle of the present invention.
Fig. 6 is the Bending moment distribution schematic diagram of one bilateral haunched beam retailing piles with round section operation principle of the present invention.
In Fig. 7, a, b, c, d, e, f, g, h, i are the construction technology process schematic diagram of the present invention a kind of bilateral haunched beam retailing piles with round section construction method.
In figure: the circular upright pile body of 1-, 2-dorsal part circular horizontal haunched beam, 3-dorsal part tiltedly holds in the palm, side, 4-face circular horizontal haunched 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, D1-circular upright pile body diameter of section, D2-dorsal part circular horizontal haunched beam diameter of section, D3Side ,-face circular horizontal haunched beam diameter of section, H1-dorsal part tiltedly holds in the palm height, H2-face skew back torr height, B1-dorsal part tiltedly holds in the palm width, B2-face skew back torr width, I1-dorsal part circular horizontal haunched beam is away from Side Slope crack face or the slide surface distance with circle upright pile body dorsal part intersection point that comes down, I2-dorsal part circular horizontal haunched beam passes through Side Slope crack face or the landslide degree of depth that extend in good ground of slide surface, I3Side ,-face circular horizontal haunched beam is away from Side Slope crack face or the slide surface distance with circle upright pile body face top-cross point that comes down, I4The length of side ,-face circular horizontal haunched beam.
Detailed description of the invention
Shown in root Ju Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of bilateral haunched beam retailing piles with round section, including: circular upright pile body 1, dorsal part circular horizontal haunched beam 2 dough-making powder side circular horizontal haunched beam 4；Dorsal part circular horizontal haunched beam 2 is arranged on circular upright pile body 1 dorsal part, and side, face circular horizontal haunched beam 4 is arranged on circular upright 1 side of pile body.
Also including that dorsal part tiltedly holds in the palm 3, on the upside of described dorsal part circular horizontal haunched beam 2, pile body 1 upright with circle is vertical is connected, and on the downside of dorsal part circular horizontal haunched beam 2, pile body 1 upright with circle tiltedly asks 3 to be connected by dorsal part.
Also including face skew back torr 5, on the downside of described side, face circular horizontal haunched beam 4, pile body 1 upright with circle is vertical is connected, and on the upside of side, face circular horizontal haunched beam 4, pile body 1 upright with circle is connected by face skew back torr 5.
Described dorsal part circular horizontal haunched beam 2 is arranged on circular 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 circle upright pile body 1 dorsal part that comes down1Not less than 2.0m；Described dorsal part circular horizontal haunched beam 2 passes through Side Slope crack face 7 or landslide slide surface 8 extend into degree of depth I in good ground 92Circular upright pile body diameter D not less than 2 times1。
Described side, face circular horizontal haunched beam 4 is arranged on circular upright 1 side of pile body, distance I below the intersection point with 1 side of the upright pile body of circle away from Side Slope crack face 7 or landslide slide surface 83Not less than 2.0m.
Circular upright pile body 1 diameter of section D1, dorsal part circular horizontal haunched beam 2 diameter of section D2And side, face circular horizontal haunched beam 4 diameter of section D3Identical, D1=D2=D3=1.5~2.0m。
Described side, face circular horizontal haunched beam 4 length I4Circular upright pile body diameter D not less than 3 times1。
Described dorsal part tiltedly holds in the palm 3 width B1With height H1It is 1.0 ~ 2.0m.
Described face skew back torr 5 width B2With height H2It is 1.0 ~ 2.0m.
Described circular upright pile body 1 is poured by armored concrete.
Root Ju Fig. 5, shown in Fig. 6, the operation principle of the present invention a kind of bilateral haunched beam retailing piles with round section is: by being respectively provided with one Horizontal hunche beam at the certain depth of circle upright pile body dorsal part dough-making powder side, and dorsal part circular horizontal haunched beam is passed through potential slide surface extend in good ground, side, face circular horizontal haunched beam is placed in the good ground of below potential slide surface, to reach to strengthen the purpose of the anti-skid performance of friction pile, during friction pile work, the gravity pressure that dorsal part circular horizontal haunched 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 circular upright pile body 1 is undertaken；When dorsal part circular horizontal haunched beam 2 and circle 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 circular horizontal haunched beam 2；When side, face circular horizontal haunched beam 4 and circle 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 circular horizontal haunched beam 4；Dorsal part circular horizontal haunched beam 2 dough-making powder side circular horizontal haunched 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 circular horizontal haunched 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
Shown in root Ju Fig. 7, a kind of bilateral haunched beam retailing piles with round section construction method, specifically comprise the following steps that
A, dorsal part circular horizontal haunched beam epimere pile body pore-forming: use Spiral digging machine dry method pore-forming, bury steel pile casting before creeping into underground, creep into and utilize the clear hole of Spiral digging machine augers to the designed elevation of dorsal part oblique backing face；
Described casing uses wall thickness 5 ~ 8mm steel plate to roll, internal diameter 20cm bigger than pile body diameter, highly 2m；
B, dorsal part circular horizontal haunched beam Liang Shen cavern pore-forming: use artificial horizontal digging mode pore-forming, often excavating one section in pore forming process and use the mode lining cutting one section such as anchor pole, spray concrete, circulation construction is to stretching into Side Slope crack face or the landslide slide surface degree of depth circular upright pile body diameter not less than 2 times；
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 circular horizontal haunched beam fabrication of reinforcing cage are installed: 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 circular horizontal haunched beam and side, face circular horizontal haunched beam: use Spiral digging machine dry method pore-forming, steel pile casting is buried underground before creeping into, creeping into the designed elevation of Horizontal hunche soffit, side, face and utilize the clear hole of Spiral digging machine augers, circulation form of construction work is identical with step a；
E, circular horizontal haunched beam Liang Shen 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 circular upright pile body diameter not less than 3 times, circulation form of construction work is identical with step b；
F, side, face circular horizontal haunched beam fabrication of reinforcing cage are installed: 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, steel reinforcement cage welding manner is identical with step c simultaneously；
G, side, face circular horizontal haunched beam hypomere pile body pore-forming: use Spiral digging machine dry method pore-forming, bury steel pile casting underground, creep into designed elevation at the bottom of friction pile stake and utilize the clear hole of Spiral digging machine augers before creeping into, circulation work progress is identical with step a；
H, circular upright pile body fabrication of reinforcing cage is installed: pile body steel reinforcement cage uses usual manner to weld outside stake holes, pile body stirrup is encrypted in dorsal part circular horizontal haunched beam dough-making powder side circular horizontal haunched beam joint upper and lower 2.0m scope, use crane by fixing in the stake holes of reinforcing bar cage hoisting to excavation after completing, and at dorsal part circular horizontal haunched beam, side, face circular horizontal haunched beam and circle upright pile body joint, by dorsal part circular horizontal haunched beam, the circular horizontal haunch beam main tendon main muscle of pile body upright with circle in side, face welds, steel reinforcement cage welding manner is identical with step c；
The circular upright pile body of i, friction pile, dorsal part circular horizontal haunched beam and the circular horizontal haunched beam concreting of side, face: use pump concrete to pour the circular upright pile body of friction pile, dorsal part circular horizontal haunched beam and side, face circular horizontal haunched 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 (8)
1. a bilateral haunched beam retailing piles with round section, it is characterised in that: including: circular straight
Staking out body (1), dorsal part circular horizontal haunched beam (2) dough-making powder side circular horizontal haunched beam (4)；
Dorsal part circular horizontal haunched beam (2) is arranged on circular upright pile body (1) dorsal part, described face
Side circular horizontal haunched beam (4) is arranged on circular upright pile body (1) side, face, away from Side Slope crack
Below face (7) or landslide slide surface (8) and the intersection point of circle upright pile body (1) side, face away from
From I3Not less than 2.0m；
Described side, face circular horizontal haunched beam (4) length I4Circle not less than 3 times is upright
Pile body (1) diameter D1。
A kind of bilateral haunched beam retailing piles with round section the most according to claim 1, it is special
Levy and be: also include that dorsal part tiltedly holds in the palm (3), on described dorsal part circular horizontal haunched beam (2)
Side pile body upright with circle (1) is vertical to be connected, dorsal part circular horizontal haunched beam (2) downside with
Circular upright pile body (1) tiltedly asks (3) to connect by dorsal part.
A kind of bilateral haunched beam retailing piles with round section the most according to claim 1 and 2,
It is characterized in that: also include face skew back torr (5), described side, face circular horizontal haunched beam (4)
Downside pile body upright with circle (1) is vertical to be connected, upside, side, face circular horizontal haunched beam (4)
Pile body upright with circle (1) is connected by face skew back torr (5).
A kind of bilateral haunched beam retailing piles with round section the most according to claim 1, it is special
Levy and be: described dorsal part circular horizontal haunched beam (2) is arranged on circular upright pile body (1)
Dorsal part, away from Side Slope crack face (7) or come down slide surface (8) and the upright pile body of circle (1)
Above distance I of intersection point of dorsal part1Not less than 2.0m；Described dorsal part circular horizontal haunched beam (2)
Pass through Side Slope crack face (7) or landslide slide surface (8) to extend in good ground (9)
Degree of depth I2Circular upright pile body (1) diameter D not less than 2 times1。
A kind of bilateral haunched beam retailing piles with round section the most according to claim 1, it is special
Levy and be: circular upright pile body (1) diameter of section D1, dorsal part circular horizontal haunched beam (2)
Diameter of section D2And side, face circular horizontal haunched beam (4) diameter of section D3It is identical,
D1=D2=D3=1.5～2.0m.
A kind of bilateral haunched beam retailing piles with round section the most according to claim 2, it is special
Levy and be: described dorsal part tiltedly holds in the palm (3) width B1With height H1It is 1.0～2.0m.
A kind of bilateral haunched beam retailing piles with round section the most according to claim 3, it is special
Levy and be: described face skew back torr (5) width B2With height H2It is 1.0～2.0m.
8. a bilateral haunched beam retailing piles with round section construction method, it is characterised in that: concrete
Step is as follows:
A, dorsal part circular horizontal haunched beam epimere pile body pore-forming: use Spiral digging machine dry method pore-forming,
Bury steel pile casting before creeping into underground, creep into and utilize Spiral digging machine spiral to the designed elevation of dorsal part oblique backing face
The clear hole of drill bit；
Described casing uses wall thickness 5～8mm steel plate to roll, internal diameter 20cm bigger than pile body diameter,
Highly 2m；
B, dorsal part circular horizontal haunched beam Liang Shen cavern pore-forming: use artificial horizontal digging mode
Pore-forming, often excavates one section and uses anchor pole, the mode lining cutting one section of spray concrete, circulation in pore forming process
Construct to stretching into the circular upright stake not less than 2 times of Side Slope crack face or the landslide slide surface degree of depth
Body diameter；
Described circulation construction procedure is as follows: every section of horizontal cutting depth control 1.0～2.0m it
Between, lining cutting mode is adjusted flexibly according to driving stratum characteristic, uses in soft rock or scall
Spray concrete and combining anchor carry out lining cutting, use spray concrete to carry out lining cutting in other stratum, and the preceding paragraph serves as a contrast
Build and next section of excavation after construction completes, can be carried out；
C, dorsal part circular horizontal haunched beam fabrication of reinforcing cage are installed: reinforcing bar uses usual manner to exist
Liang Shen welds in cavern, and steel reinforcement cage is from the progressively fabrication and installation toward hole of cavern's face, system
Make Horizontal hunche beam main tendon in installation process and should stretch out hole not less than 35 times of main muscle diameter lengths,
And be bent in cavern；
Described welding step is as follows: use quincunx spot welding between the main muscle of beam body and stirrup, main muscle with
Using overlap welding between main muscle, fusion length is not less than 10 times of main muscle diameters；
Section pile body pore-forming between d, dorsal part circular horizontal haunched beam and side, face circular horizontal haunched beam:
Use Spiral digging machine dry method pore-forming, bury steel pile casting before creeping into underground, creep into at the bottom of the Horizontal hunche beam of side, face
Utilizing the clear hole of Spiral digging machine augers after the designed elevation of face, circulation form of construction work is identical with step a；
E, circular horizontal haunched beam Liang Shen cavern, side, face pore-forming: use artificial horizontal digging mode
Pore-forming, often excavates one section and uses the mode lining cutting one section such as anchor pole, spray concrete, circulation in pore forming process
Construction, Horizontal hunche Liang Liang body cavern, side, the face length circular upright pile body diameter not less than 3 times,
Circulation form of construction work is identical with step b；
F, side, face circular horizontal haunched beam fabrication of reinforcing cage are installed: reinforcing bar uses usual manner to exist
Liang Shen welds in cavern, and steel reinforcement cage is from the progressively fabrication and installation toward hole of cavern's face, system
Make Horizontal hunche beam main tendon in installation process and should stretch out hole not less than 35 times of main muscle diameter lengths,
And be bent in cavern, steel reinforcement cage welding manner is identical with step c；
G, side, face circular horizontal haunched beam hypomere pile body pore-forming: use Spiral digging machine dry method pore-forming,
Bury steel pile casting before creeping into underground, creep into designed elevation at the bottom of friction pile stake and utilize Spiral digging machine auger
The clear hole of head, circulation work progress is identical with step a；
H, circular upright pile body fabrication of reinforcing cage are installed: pile body steel reinforcement cage uses usual manner to exist
Welding outside stake holes, pile body stirrup adds at dorsal part circular horizontal haunched beam dough-making powder side circular horizontal
Axil beam splice upper and lower 2.0m scope is encrypted, and uses crane to be hung by steel reinforcement cage after completing
Fix in being filled to the stake holes of excavation, and add at dorsal part circular horizontal haunched beam, side, face circular horizontal
Axil beam and circle upright pile body joint, by dorsal part circular horizontal haunched beam, side, face circular horizontal
The main muscle of haunch beam main tendon pile body upright with circle welds, steel reinforcement cage welding manner and step c
Identical；
The circular upright pile body of i, friction pile, dorsal part circular horizontal haunched beam and side, face circular horizontal
Haunched beam concreting: use pump concrete to pour friction pile circular upright pile body, dorsal part
Circular horizontal haunched beam and side, face circular horizontal haunched beam, every continuous pouring in casting process
0.5～0.7m, use immersion vibrator vibration compacting 1 time, immersion vibrator tumbling barrel or
The distance controlling in conduit end opening and concreting face is between 1.0～3.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199125.1A CN104018495B (en) | 2014-05-13 | 2014-05-13 | Bilateral haunched beam circular section anti-slide pile and construction method thereof |
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| CN110106888A (en) * | 2019-04-02 | 2019-08-09 | 刘侨 | It is a kind of to exempt from horizontally-supported self-stabilization type foundation pit enclosure support construction construction method |
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| SU1325134A1 (en) * | 1986-03-28 | 1987-07-23 | Центральный Научно-Исследовательский Экспериментальный И Проектный Институт По Сельскому Строительству | Pile-column |
| CN201605591U (en) * | 2009-12-14 | 2010-10-13 | 三峡大学 | T-shaped anti-slide pile |
| CN202809646U (en) * | 2012-10-19 | 2013-03-20 | 重庆市市政设计研究院 | Combined retaining wall structure |
| 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 |
| CN203855959U (en) * | 2014-05-13 | 2014-10-01 | 中冶集团武汉勘察研究院有限公司 | Circular-section anti-slide pile with bilateral haunched beams |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1325134A1 (en) * | 1986-03-28 | 1987-07-23 | Центральный Научно-Исследовательский Экспериментальный И Проектный Институт По Сельскому Строительству | Pile-column |
| 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 |
| CN202809646U (en) * | 2012-10-19 | 2013-03-20 | 重庆市市政设计研究院 | Combined retaining wall structure |
| CN203855959U (en) * | 2014-05-13 | 2014-10-01 | 中冶集团武汉勘察研究院有限公司 | Circular-section anti-slide pile with bilateral haunched beams |
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