CN107675707A - Inclined rock base steel pile casting is fixed and bottom blocking method - Google Patents
Inclined rock base steel pile casting is fixed and bottom blocking method Download PDFInfo
- Publication number
- CN107675707A CN107675707A CN201710825653.7A CN201710825653A CN107675707A CN 107675707 A CN107675707 A CN 107675707A CN 201710825653 A CN201710825653 A CN 201710825653A CN 107675707 A CN107675707 A CN 107675707A
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- steel pile
- pile casting
- casting
- tubular capsule
- steel
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Classifications
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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
- E02D5/66—Mould-pipes or other moulds
-
- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- 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
- E02D5/66—Mould-pipes or other moulds
- E02D5/665—Mould-pipes or other moulds for making piles
Abstract
The invention discloses a kind of inclined rock base steel pile casting bottom blocking method, comprise the following steps：1）Steel pile casting is squeezed into underwater rock stratum, and 2）The impact drilling, 3）Top connects the steel pile casting after height and squeezed into the hard rock stratum at the bottom, and 4）Steel pile casting and vacuum tubular capsule band in making, 5）Interior steel pile casting is hung in steel pile casting together with vacuum tubular capsule, and 6）Vacuum tubular capsule slip casting expansion closing steel pile casting bottom outside, 7）Continue to drill and complete the construction in steel pile casting.The fixation and bottom plugging effect that the present invention is rapidly and efficiently, construction cost is low, steel pile casting can be stablized are good.Solve riverbed gradient more than 30 °, rock stratum is shallow and rock stratum rigid surface is fixed without overburden layer or overburden layer for the steel pile casting of mud and the problem of steel pile casting bottom closure, revealed so as to avoid producing mud in boring procedure, substantially increase construction quality, the construction period is shortened, reduces construction cost.
Description
Technical field
It is used to stablize underwater directional vehicle hole wall the present invention relates to a kind of, the fixing means for the steel pile casting for preventing from collapsing hole,
Especially a kind of method that steel pile casting is fixed on water-bed inclined rock base and blocks its bottom, belongs to hydraulic engineering technical field.
Background technology
It is existing steel pile casting is fixed on water-bed inclined rock base method it is as follows：Closely knit water is first backfilled using the earthwork, gravel
Bottom, or filled and led up inclined-plane using sand pocket, steel pile casting is then transferred again so that steel pile casting bottom can block tightly, then be bored
Construct in hole.This kind of method construction can only be smaller in riverbed slope, is carried out at closely knit no rock stratum or soft stratum.If run into riverbed
Gradient is more than 30 °, rock stratum is shallow and rock stratum rigid surface is without overburden layer or geological state that overburden layer is mud, and steel pile casting is not only
It is difficult to fix, and steel pile casting bottom is also difficult to block so that closing space can not be formed in steel pile casting, caused in boring procedure
Mud is leaked to outside steel pile casting, and then can not concrete perfusion.Construction quality is had a strong impact on, is delayed the construction period.
The content of the invention
Fixed it is an object of the invention to provide a kind of inclined rock base steel pile casting and bottom blocking method, this method are quickly high
The fixation and bottom plugging effect that effect, construction cost are low, steel pile casting can be stablized are good.
The present invention is achieved by the following technical programs：
A kind of inclined rock base steel pile casting is fixed and bottom blocking method, comprises the following steps：
1）Steel pile casting is squeezed into underwater rock stratum
Several steel-pipe piles are squeezed into water-bed rock stratum respectively around the steel pile casting of design stake position, brill is set up on steel-pipe pile top
Hole platform, by steel pile casting vertical support in drilling platform；Then steel pile casting top is hammered with vibration hammer so that steel pile casting bottom
Side is squeezed into the inclined bottom, and then steel pile casting upper end is vertically fixed in drilling platform with more shaped steel；
2）The impact drilling
The chopping bit of piling machine passes through steel pile casting bottom on drilling platform, and in inclined water-bed drilling, drilling depth is gone directly
Hard rock stratum under water-bed；
3）Top connects the steel pile casting after height and squeezed into the hard rock stratum at the bottom
Determine to connect high steel pile casting length by drilling depth, high steel pile casting is connect on drilling platform, is then protected steel with vibration hammer
Cylinder bottom, which is squeezed into, to be tilted in water-bed hard rock stratum, and now, steel pile casting bottom not yet reaches drilling hole bottom；
4）Steel pile casting and vacuum tubular capsule band in making
Make external diameter and be less than the interior steel pile casting of steel pile casting internal diameter, while make vacuum tubular capsule, the vacuum tubular capsule
Height is equal with the height of interior steel pile casting；It will be adhesively fixed on the outside of vacuum tubular capsule on the outer peripheral face of interior steel pile casting, then
Main Grouting Pipe lower end and blast pipe lower end are fixedly connected with vacuum tubular capsule band upper end respectively, are welded with interior steel pile casting top
Several suspension rods；
5）Interior steel pile casting is hung in steel pile casting together with vacuum tubular capsule
Loop wheel machine on drilling platform is hung in interior steel pile casting and vacuum tubular capsule in steel pile casting by several suspension rods, and makes interior steel
Casing bottom and vacuum tubular capsule bottom stretch out steel pile casting bottom, rest upon on the drilling hole bottom of hard rock stratum；Vacuum
The length L1 that tubular capsule stretches out steel pile casting is the 1/3~1/2 of vacuum tubular capsule overall length L；Enclosed with polylith curved plate interval
Cheng Yizhou is fixed on the top of steel pile casting and interior steel pile casting, by the top of vacuum tubular capsule be limited in polylith curved plate it
Under；
6）Vacuum tubular capsule slip casting expansion closing
High-strength mortar or grouting agent are injected into vacuum tubular capsule from Grouting Pipe, in the presence of grouting pressure, positioned at steel
Vacuum tubular capsule between casing and interior steel pile casting is gradually full, and along steel pile casting and interior steel pile casting axial clearance to downward
Stretch and traverse steel pile casting bottom and form bulge, the bulge completely encloses steel pile casting bottom outside and mud, Soft Soil Layer, light
Space between homogenous rock stratum and hard rock stratum；
7）Continue to drill and complete the construction in steel pile casting
After the high-strength mortar of injection in vacuum tubular capsule or grouting agent dry the intensity for reaching required, continue to drill
Construction, is then lifted up into steel reinforcement cage in steel pile casting with the loop wheel machine on drilling platform, then the casting concrete into steel pile casting, is completed
The construction of bored concrete pile.
The purpose of the present invention can also further be realized by following technical measures.
Further, step 2）In from the depth H=3m~5m at steel pile casting bottom to drilling hole bottom；The impact drilling
Diameter D≤steel pile casting internal diameter d.
Further, step 4）In vacuum tubular capsule be launched into rectangular enclosure body, it is vertical in the rectangular enclosure body
The longitudinal Grouting Pipe for leading to rectangular enclosure body bottom, longitudinal Grouting Pipe and upper and lower spaced several horizontal strokes are provided with to center
Penetrated in the middle part of to Grouting Pipe with longitudinal Grouting Pipe, the main Grouting Pipe lower end is fixedly connected with longitudinal Grouting Pipe upper end.The horizontal stroke
It is flexible grout pipe to Grouting Pipe.
Further, step 5）In steel pile casting inwall and interior steel pile casting outer peripheral face between gap delta=5cm~10cm.
The present invention is provided with one layer of vacuum tubular capsule between steel pile casting and interior steel pile casting, is noted into vacuum tubular capsule
After entering high-strength mortar or grouting agent, vacuum tubular capsule is extended downwardly and crossed along steel pile casting and interior steel pile casting axial clearance
Steel pile casting bottom outside and mud, Soft Soil Layer, lightweight rock stratum and hard rock can be completely enclosed by crossing the bottom formation of interior steel pile casting
The bulge in the space between layer.So that steel pile casting bottom is blocked, solve riverbed gradient more than 30 °, rock stratum is shallow and rock stratum
Rigid surface is fixed without overburden layer or overburden layer for the steel pile casting of mud and steel pile casting bottom is difficult to the problem that blocks, so as to keep away
Exempt to produce mud in boring procedure to reveal, substantially increase construction quality, shorten the construction period, reduce construction cost.
Advantages of the present invention and feature, it will be illustrated and explained by the non-limitative illustration of preferred embodiment below,
These embodiments, only provide as an example referring to the drawings.
Brief description of the drawings
Fig. 1 is step 1 of the present invention）Schematic diagram；
Fig. 2 is step 2 of the present invention）Schematic diagram；
Fig. 3 is step 3 of the present invention）Schematic diagram；
Fig. 4 is step 5 of the present invention）Schematic diagram；
Fig. 5 is step 6 of the present invention）Schematic diagram；
Fig. 6 is step 7 of the present invention）Schematic diagram；
Fig. 7 is Fig. 5 I enlarged drawing；
Fig. 8 is Fig. 5 A-A sectional views；
Fig. 9 is the structural representation that vacuum tubular capsule is launched into rectangular enclosure body.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Fig. 1~Fig. 6, the present invention comprises the following steps：
1）Steel pile casting 10 is squeezed into underwater rock stratum
As shown in figure 1, several steel-pipe piles 20 are squeezed into water-bed rock stratum respectively around the steel pile casting 10 of design stake position, in steel pipe
Stake sets up the drilling platform 30 being welded using shaped steel on 20 tops, by the vertical support of steel pile casting 10 in drilling platform 30.
Then the top of steel pile casting 10 is hammered with vibration hammer so that the bottom side of steel pile casting 10 is squeezed into the inclined bottom, then with more
The vertical welding of steel pile casting 10 is fixed in drilling platform 30 by shaped steel.The wall thickness of the steel pile casting 10 of the present embodiment is 10mm.
2）The impact drilling
As shown in Fig. 2 the chopping bit 40 of piling machine passes through the bottom of steel pile casting 10 on drilling platform 30, in inclined water-bed brill
Hole, the impact drilling diameter D≤steel pile casting internal diameter d, it is easy to subsequent handling to connect the bottom of steel pile casting 10 after height and imbeds bottom hole.Drilling
Hard rock stratum 54 under the through bottom of depth.
3）Top connects the steel pile casting 10 after height and squeezed into the hard rock stratum 54 at the bottom
As shown in figure 3, determining to connect the high length of steel pile casting 10 by drilling depth, high steel pile casting 10 is connect on drilling platform 30, so
The bottom of steel pile casting 10 is squeezed into vibration hammer afterwards and tilted in water-bed hard rock stratum 54, now, the bottom of steel pile casting 10 not yet reaches
Drilling hole bottom 6；Depth H=3m~5m from the bottom of steel pile casting 10 to drilling hole bottom 6.
4）Steel pile casting 50 and vacuum tubular capsule 60 in making
The interior steel pile casting 70 that external diameter is less than the internal diameter of steel pile casting 10 is made, the wall thickness of interior steel pile casting 70 of the present embodiment is 3mm；Make simultaneously
Make vacuum tubular capsule 60, the height of the vacuum tubular capsule 60 is equal with the height of interior steel pile casting 70.By vacuum tubular rubber
The medial surface of capsule 60 is adhesively fixed on the outer peripheral face of interior steel pile casting 70, then by the main lower end of Grouting Pipe 80 and the lower end of blast pipe 90 point
It is not fixedly connected with the upper end of vacuum tubular capsule 60,4 suspension rods 701 is welded with the interior top of steel pile casting 70, is easy to steel in handling to protect
Cylinder 10 is together with vacuum tubular capsule 60.
5）Interior steel pile casting 70 is hung in steel pile casting 10 together with vacuum tubular capsule 60
As shown in figure 4, the loop wheel machine on drilling platform is hung in interior steel pile casting 70 and vacuum tubular capsule 60 by 4 suspension rods 701
In steel pile casting 10, and the interior bottom of steel pile casting 70 and the bottom of vacuum tubular capsule 60 is stretched out the bottom of steel pile casting 10, rest upon
On the drilling hole bottom 6 of hard rock stratum 54.The length L1 that vacuum tubular capsule 60 stretches out steel pile casting 10 is the 1/3~1/ of its overall length L
2。
6）Expansion closing steel pile casting bottom outside after the slip casting of vacuum tubular capsule 60
As shown in figure 5 and figure 7, high-strength mortar or grouting agent are injected into vacuum tubular capsule 60 from main Grouting Pipe 80, noted
In the presence of starching pressure, the vacuum tubular capsule 60 between steel pile casting 10 and interior steel pile casting 70 is gradually full, is protected along steel
Cylinder 10 and the axial clearance of interior steel pile casting 70, which extend downwardly and traverse the bottom of steel pile casting 10, forms bulge 601, and bulge 601 is sealed completely
The space closed between the bottom outside of steel pile casting 10 and mud 51, Soft Soil Layer 52, lightweight rock stratum 53, hard rock stratum 54.
7）Continue to drill and complete the construction in steel pile casting
As shown in 7 figures, after the high-strength mortar of injection in vacuum tubular capsule 60 or grouting agent dry the intensity for reaching required,
Continue drilling construction, then lifted up into steel reinforcement cage 100 in steel pile casting 10 with the loop wheel machine on drilling platform 30, then protected to steel
Casting concrete in cylinder 10, completes the construction of bored concrete pile.
As shown in figure 8, the interval of polylith curved plate 7 surrounds one week top for being weldingly fixed on steel pile casting 10 and interior steel pile casting 70
End, the top of vacuum tubular capsule 60 is limited under polylith curved plate 7, after avoiding vacuum tubular capsule 60 from injecting slurry
Overhang the top of steel pile casting 10.
As shown in figure 8, gap delta=5cm~10cm between the inwall of steel pile casting 10 and the outer peripheral face of interior steel pile casting 70, is easy to embedding
Enter vacuum tubular capsule 60.
As shown in figure 9, vacuum tubular capsule 60 is launched into rectangular enclosure body 601, the longitudinal direction in the rectangular enclosure body 601
Center, which is provided with, leads to longitudinal Grouting Pipe 602 of the bottom of rectangular enclosure body 601, longitudinal Grouting Pipe 602 with spaced 4 up and down
The middle part of horizontal Grouting Pipe 603 and longitudinal Grouting Pipe 602 are vertically through being easy to slurry to the surrounding Uniform Flow of rectangular enclosure body 601.
Longitudinal Grouting Pipe 602 and the lower end of main Grouting Pipe 80 are fixedly connected with longitudinal upper end of Grouting Pipe 602.For the ease of rectangular enclosure body
601 are rolled into vacuum tubular capsule 60, and horizontal Grouting Pipe 603 is flexible grout pipe, such as nylon tube or plastic tube.
In addition to the implementation, the present invention can also have other embodiment, all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (6)
1. a kind of inclined rock base steel pile casting is fixed and bottom blocking method, it is characterised in that comprises the following steps：
Steel pile casting is squeezed into underwater rock stratum
Several steel-pipe piles are squeezed into water-bed rock stratum respectively around the steel pile casting of design stake position, brill is set up on steel-pipe pile top
Hole platform, by steel pile casting vertical support in drilling platform；Then steel pile casting top is hammered with vibration hammer so that steel pile casting bottom
Side is squeezed into the inclined bottom, and then steel pile casting upper end is vertically fixed in drilling platform with more shaped steel；
The impact drilling
The chopping bit of piling machine passes through steel pile casting bottom on drilling platform, and in inclined water-bed drilling, drilling depth is gone directly
Hard rock stratum under water-bed；
3）Top connects the steel pile casting after height and squeezed into the hard rock stratum at the bottom
Determine to connect high steel pile casting length by drilling depth, high steel pile casting is connect on drilling platform, is then protected steel with vibration hammer
Cylinder bottom, which is squeezed into, to be tilted in water-bed hard rock stratum, and now, steel pile casting bottom not yet reaches drilling hole bottom；
Steel pile casting and vacuum tubular capsule in making
Make external diameter and be less than the interior steel pile casting of steel pile casting internal diameter, while make vacuum tubular capsule, the vacuum tubular capsule
Height is equal with the height of interior steel pile casting；It will be adhesively fixed on the outside of vacuum tubular capsule on the outer peripheral face of interior steel pile casting, then
Main Grouting Pipe lower end and blast pipe lower end are fixedly connected with vacuum tubular capsule upper end respectively, number is welded with interior steel pile casting top
Root suspension rod；
5）Interior steel pile casting is hung in steel pile casting together with vacuum tubular capsule
Loop wheel machine on drilling platform is hung in interior steel pile casting and vacuum tubular capsule in steel pile casting by several suspension rods, and makes interior steel
Casing bottom and vacuum tubular capsule bottom stretch out steel pile casting bottom；The length L1 that vacuum tubular capsule stretches out steel pile casting is vacuum
The 1/3~1/2 of tubular capsule overall length L；One week top for being fixed on steel pile casting and interior steel pile casting is surrounded with polylith curved plate interval
End, the top of vacuum tubular capsule is limited under polylith curved plate；
6）Vacuum tubular capsule slip casting expansion closing steel pile casting bottom outside
High-strength mortar or grouting agent are injected into vacuum tubular capsule from Grouting Pipe, in the presence of grouting pressure, positioned at steel
Vacuum tubular capsule between casing and interior steel pile casting is gradually full, is extended downwardly along steel pile casting and interior steel pile casting axial clearance
And traverse steel pile casting bottom and form bulge, the bulge completely encloses steel pile casting bottom outside and mud, Soft Soil Layer, lightweight
Space between rock stratum and hard rock stratum；
Continue to drill and complete the construction in steel pile casting
Treat that the high-strength mortar of injection or grouting agent are dried in vacuum tubular capsule, after intensity reaches design requirement, are continued
Drilling construction, then steel reinforcement cage is lifted up into steel pile casting with the loop wheel machine on drilling platform, then the casting concrete into steel pile casting,
Complete the construction of bored concrete pile.
2. inclined rock base steel pile casting as claimed in claim 1 is fixed and bottom blocking method, it is characterised in that step 2）In from
Depth H=3m~the 5m at steel pile casting bottom to drilling hole bottom.
3. inclined rock base steel pile casting as claimed in claim 1 is fixed and bottom blocking method, it is characterised in that step 2）Middle institute
State the impact drilling diameter D≤steel pile casting internal diameter d.
4. inclined rock base steel pile casting as claimed in claim 1 is fixed and bottom blocking method, it is characterised in that step 4）In
Vacuum tubular capsule is launched into rectangular enclosure body, and the longitudinal center in the rectangular enclosure body, which is provided with, leads to rectangular enclosure body bottom
Longitudinal Grouting Pipe, longitudinal Grouting Pipe is with upper and lower spaced several horizontal Grouting Pipes vertically through the main slip casting
Pipe lower end is fixedly connected with longitudinal Grouting Pipe upper end.
5. inclined rock base steel pile casting as claimed in claim 1 is fixed and bottom blocking method, it is characterised in that step 5）In
Gap delta=5cm~10cm between steel pile casting inwall and interior steel pile casting outer peripheral face.
6. inclined rock base steel pile casting as claimed in claim 4 is fixed and bottom blocking method, it is characterised in that the laterally note
Slurry pipe is flexible grout pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710825653.7A CN107675707B (en) | 2017-09-14 | 2017-09-14 | Inclined rock base steel pile casting is fixed and bottom blocking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710825653.7A CN107675707B (en) | 2017-09-14 | 2017-09-14 | Inclined rock base steel pile casting is fixed and bottom blocking method |
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| Publication Number | Publication Date |
|---|---|
| CN107675707A true CN107675707A (en) | 2018-02-09 |
| CN107675707B CN107675707B (en) | 2019-06-25 |
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ID=61136543
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710825653.7A Active CN107675707B (en) | 2017-09-14 | 2017-09-14 | Inclined rock base steel pile casting is fixed and bottom blocking method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560543A (en) * | 2018-05-30 | 2018-09-21 | 中国二十二冶集团有限公司 | Underwater cast-in-place pile casing construction method |
| CN110130343A (en) * | 2019-05-09 | 2019-08-16 | 中铁四局集团第二工程有限公司 | A kind of steel pile casting plant construction method suitable under the conditions of deep water drift net |
| CN114250771A (en) * | 2022-01-04 | 2022-03-29 | 李亮 | Rock stratum steel casing inserting and punching method |
| CN114808930A (en) * | 2022-03-21 | 2022-07-29 | 中交二航局第一工程有限公司 | Device for quickly preventing slurry leakage of bored pile on riprap dike in sea area and construction method thereof |
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| CN107059857A (en) * | 2017-05-02 | 2017-08-18 | 中交第二航务工程局有限公司 | Steel pile casting follow-up method under the conditions of deep water inclined scar |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560543A (en) * | 2018-05-30 | 2018-09-21 | 中国二十二冶集团有限公司 | Underwater cast-in-place pile casing construction method |
| CN110130343A (en) * | 2019-05-09 | 2019-08-16 | 中铁四局集团第二工程有限公司 | A kind of steel pile casting plant construction method suitable under the conditions of deep water drift net |
| CN114250771A (en) * | 2022-01-04 | 2022-03-29 | 李亮 | Rock stratum steel casing inserting and punching method |
| CN114808930A (en) * | 2022-03-21 | 2022-07-29 | 中交二航局第一工程有限公司 | Device for quickly preventing slurry leakage of bored pile on riprap dike in sea area and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN107675707B (en) | 2019-06-25 |
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