CN107675707B - 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
- CN107675707B CN107675707B CN201710825653.7A CN201710825653A CN107675707B CN 107675707 B CN107675707 B CN 107675707B CN 201710825653 A CN201710825653 A CN 201710825653A CN 107675707 B CN107675707 B CN 107675707B
- Authority
- CN
- China
- Prior art keywords
- steel pile
- pile casting
- casting
- tubular capsule
- vacuum tubular
- 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
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Revetment (AREA)
Abstract
The invention discloses a kind of inclined rock base steel pile casting bottom blocking methods, the following steps are included: 1) steel pile casting is squeezed into underwater rock stratum, 2) the impact drilling, 3) steel pile casting after connecing height at the top of is squeezed into water-bed hard rock stratum, 4) steel pile casting and vacuum tubular capsule band in making, 5) steel pile casting is hung in steel pile casting together with vacuum tubular capsule in, 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 present invention is rapidly and efficiently, construction cost is low, the available stable fixation of steel pile casting and bottom plugging effect are good.Solve the problems, such as that riverbed gradient is greater than 30 °, rock stratum is shallow and rock stratum rigid surface is fixed without the steel pile casting that overburden layer or overburden layer are mud and steel pile casting bottom blocks, to avoid generating mud leakage in boring procedure, substantially increase construction quality, the construction period is shortened, construction cost is reduced.
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 fixed steel pile casting on water-bed inclined rock base and block its bottom, belongs to hydraulic engineering technical field.
Background technique
The existing method that steel pile casting is fixed on water-bed inclined rock base is as follows: first backfilling closely knit water using the earthwork, gravel
Bottom, or filled and led up inclined-plane using sand pocket, steel pile casting is then transferred again, and steel pile casting bottom is blocked tightly, is then bored
Hole construction.This kind of method construction can only be smaller in riverbed slope, carries out at closely knit no rock stratum or soft stratum.If encountering riverbed
Gradient is greater than 30 °, rock stratum is shallow and rock stratum rigid surface is the geological state of mud without overburden layer or overburden layer, and steel pile casting is not only
It is difficult to fix, and steel pile casting bottom is also difficult to block, so that enclosure space cannot be formed in steel pile casting, cause in boring procedure
Mud is leaked to outside steel pile casting, and then can not concrete perfusion.Construction quality is seriously affected, the construction period is delayed.
Summary of the invention
It is fixed the object of the present invention is to provide a kind of inclined rock base steel pile casting and bottom blocking method, this method is quickly high
It imitates, construction cost is low, the available stable fixation of steel pile casting and bottom plugging effect 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, comprising the following steps:
1) steel pile casting is squeezed into underwater rock stratum
Several steel-pipe piles are squeezed into respectively in water-bed rock stratum around the steel pile casting of design stake position, are taken on steel-pipe pile top
If drilling 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 fashioned iron；
2) the impact drilling
The chopping bit of piling machine passes through steel pile casting bottom on drilling platform, in inclined water-bed drilling, drilling depth
Hard rock stratum under the through bottom；
3) steel pile casting after connecing height at the top of is squeezed into water-bed hard rock stratum
High steel pile casting length is connect by drilling depth determination, high steel pile casting is connect on drilling platform, it then will with vibration hammer
Steel pile casting bottom is squeezed into the water-bed hard rock stratum of inclination, at this point, steel pile casting bottom not yet reaches drilling hole bottom；
4) steel pile casting and vacuum tubular capsule band in making
The interior steel pile casting that outer diameter is less than steel pile casting internal diameter is made, while making vacuum tubular capsule, the vacuum tubular rubber
The height of capsule is equal with the height of interior steel pile casting；It will be adhesively fixed on the outer peripheral surface of interior steel pile casting on the outside of vacuum tubular capsule,
Then main Grouting Pipe lower end and exhaust pipe lower end are fixedly connected with vacuum tubular capsule band upper end respectively, on interior steel pile casting top
It is welded with several sunpenders；
5) steel pile casting is hung in steel pile casting together with vacuum tubular capsule in
Loop wheel machine on drilling platform is hung in interior steel pile casting and vacuum tubular capsule in steel pile casting by several sunpenders, and is made
Interior steel pile casting bottom and vacuum tubular capsule bottom stretch out steel pile casting bottom, rest upon on the drilling hole bottom of hard rock stratum；
The length L1 that vacuum tubular capsule stretches out steel pile casting is the 1/3~1/2 of vacuum tubular capsule overall length L；With between muti-piece curved plate
Every surrounding one week top for being fixed on steel pile casting and interior steel pile casting, the top of vacuum tubular capsule is limited in muti-piece curved plate
Under；
6) vacuum tubular capsule slip casting expansion closing
High-strength mortar or grouting agent, under the action of grouting pressure, position are injected into vacuum tubular capsule from Grouting Pipe
Vacuum tubular capsule between steel pile casting and interior steel pile casting is gradually full, and along steel pile casting and interior steel pile casting axial clearance to
Lower extension simultaneously traverses the formation bulge of steel pile casting bottom, and the bulge completely encloses steel pile casting bottom outside and mud, weak soil
Gap between layer, lightweight rock stratum and hard rock stratum；
7) continue to drill and complete the construction in steel pile casting
After high-strength mortar or grouting agent drying after inject in vacuum tubular capsule reach required intensity, continue
Then drilling construction is 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,
Complete the construction of bored concrete pile.
The purpose of the present invention can also be further realized by following technical measures.
Further, from the depth H=3m~5m at steel pile casting bottom to drilling hole bottom in step 2)；The impact drilling
Diameter D≤steel pile casting internal diameter d.
Further, the vacuum tubular capsule in step 4) is launched into rectangular enclosure body, and the rectangular enclosure is intracorporal vertical
The longitudinal Grouting Pipe for leading to rectangular enclosure body bottom, the longitudinal direction Grouting Pipe and upper and lower spaced several cross are equipped with to center
It is penetrated through 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 cross
It is flexible grout pipe to Grouting Pipe.
Further, gap delta=5cm~10cm between the steel pile casting inner wall in step 5) and interior steel pile casting outer peripheral surface.
The present invention is provided with one layer of vacuum tubular capsule between steel pile casting and interior steel pile casting, infuses into vacuum tubular capsule
After entering high-strength mortar or grouting agent, vacuum tubular capsule is extended downwardly and is crossed along steel pile casting and interior steel pile casting axial clearance
The bottom for crossing interior steel pile casting, which is formed, can completely enclose steel pile casting bottom outside and mud, Soft Soil Layer, lightweight rock stratum and hard rock
The bulge in the gap between layer.So that steel pile casting bottom is blocked, solve riverbed gradient greater than 30 °, rock stratum is shallow and rock stratum
Rigid surface is fixed without the steel pile casting that overburden layer or overburden layer are mud and steel pile casting bottom is difficult to the problem blocked, to keep away
Exempt to generate mud leakage in boring procedure, substantially increases construction quality, shorten the construction period, reduce construction cost.
The advantages and features of the present invention will be illustrated and explained by the non-limitative illustration of preferred embodiment below,
These embodiments only provide as an example referring to attached drawing.
Detailed description of the invention
Fig. 1 is the schematic diagram of step 1) of the present invention；
Fig. 2 is the schematic diagram of step 2) of the present invention；
Fig. 3 is the schematic diagram of step 3) of the present invention；
Fig. 4 is the schematic diagram of step 5) of the present invention；
Fig. 5 is the schematic diagram of step 6) of the present invention；
Fig. 6 is the schematic diagram of step 7) of the present invention；
Fig. 7 is I enlarged drawing of Fig. 5；
Fig. 8 is the A-A cross-sectional view of Fig. 5；
Fig. 9 is the structural schematic diagram that vacuum tubular capsule is launched into rectangular enclosure body
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Fig. 1~Fig. 6, the present invention the following steps are included:
1) steel pile casting 10 is squeezed into underwater rock stratum
As shown in Figure 1, squeeze into several steel-pipe piles 20 in water-bed rock stratum respectively around the steel pile casting 10 of design stake position,
The drilling platform 30 made of fashioned iron welds is set up on 20 top of steel-pipe pile, by 10 vertical support of steel pile casting in drilling platform 30
In.Then 10 top of steel pile casting is hammered with vibration hammer, so that 10 bottom side of steel pile casting is squeezed into the inclined bottom, then with more
10 vertical welding of steel pile casting is fixed in drilling platform 30 by root fashioned iron.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 10 bottom of steel pile casting on drilling platform 30, in inclined water
Bottom hole is imbedded in subdrilling hole, the impact drilling diameter D≤steel pile casting internal diameter d, 10 bottom of steel pile casting after height is connect convenient for subsequent handling.
Hard rock stratum 54 under the through bottom of drilling depth.
3) steel pile casting 10 after connecing height at the top of is squeezed into water-bed hard rock stratum 54
As shown in figure 3, connecing high 10 length of steel pile casting by drilling depth determination, high steel pile casting is connect on drilling platform 30
10, then 10 bottom of steel pile casting is squeezed into the water-bed hard rock stratum 54 of inclination with vibration hammer, at this point, 10 bottom of steel pile casting is not yet
Reach drilling hole bottom 6；Depth H=3m~5m from 10 bottom of steel pile casting to drilling hole bottom 6.
4) steel pile casting 50 and vacuum tubular capsule 60 in making
The interior steel pile casting 50 that outer diameter is less than 10 internal diameter of steel pile casting is made, 50 wall thickness of interior steel pile casting of the present embodiment is 3mm；Together
When make vacuum tubular capsule 60, the height of the vacuum tubular capsule 60 is equal with the height of interior steel pile casting 50.By vacuum cylinder
60 medial surface of shape capsule is adhesively fixed on the outer peripheral surface of interior steel pile casting 50, then will be under main 80 lower end of Grouting Pipe and exhaust pipe 90
End is fixedly connected with 60 upper end of vacuum tubular capsule respectively, is welded with 4 sunpenders 501 on interior 50 top of steel pile casting, convenient in handling
Steel pile casting 50 is together with vacuum tubular capsule 60.
5) steel pile casting 50 is hung in steel pile casting 10 together with vacuum tubular capsule 60 in
As shown in figure 4, the loop wheel machine on drilling platform passes through 4 sunpenders 501 for interior steel pile casting 50 and vacuum tubular capsule 60
It hangs in steel pile casting 10, and interior 50 bottom of steel pile casting and 60 bottom of vacuum tubular capsule is made to stretch out 10 bottom of steel pile casting, be resisted against
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 of its overall length L
~1/2.
6) expansion closing steel pile casting bottom outside after 60 slip casting of vacuum tubular capsule
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,
Under the action of grouting pressure, the vacuum tubular capsule 60 between steel pile casting 10 and interior steel pile casting 50 is gradually full, along
Steel pile casting 10 and 50 axial clearance of interior steel pile casting, which extend downwardly and traverse 10 bottom of steel pile casting, forms bulge 601, and bulge 601 is complete
Totally-enclosed 10 bottom outside of steel pile casting and mud 51, Soft Soil Layer 52, lightweight rock stratum 53, the gap between hard rock stratum 54.
7) continue to drill and complete the construction in steel pile casting
As shown in fig. 7, high-strength mortar to be injected in vacuum tubular capsule 60 or grouting agent is dry reaches required strong
After degree, continue drilling construction, is then lifted up into steel reinforcement cage 100 in steel pile casting 10 with the loop wheel machine on drilling platform 30, then
The casting concrete into steel pile casting 10 completes the construction of bored concrete pile.
As shown in figure 8, the interval of muti-piece curved plate 7 surrounds one week top for being weldingly fixed on steel pile casting 10 and interior steel pile casting 50
End, the top of vacuum tubular capsule 60 is limited under muti-piece curved plate 7, after avoiding vacuum tubular capsule 60 from injecting slurry
The top of overhanging steel pile casting 10 out.
As shown in figure 8, gap delta=5cm~10cm between 50 outer peripheral surface of 10 inner wall of steel pile casting and interior steel pile casting, convenient for embedding
Enter vacuum tubular capsule 60.
As shown in figure 9, vacuum tubular capsule 60 is launched into rectangular enclosure body 604, the longitudinal direction in the rectangular enclosure body 604
Center, which is equipped with, leads to longitudinal Grouting Pipe 602 of 604 bottom of rectangular enclosure body, longitudinal Grouting Pipe 602 with spaced 4 up and down
603 middle part of lateral Grouting Pipe and longitudinal Grouting Pipe 602 are vertically through convenient for slurry to 604 surrounding Uniform Flow of rectangular enclosure body.
Longitudinal Grouting Pipe 602 and 80 lower end of main Grouting Pipe are fixedly connected with 602 upper end of longitudinal Grouting Pipe.For the ease of rectangular enclosure body
604 are rolled into vacuum tubular capsule 60, and lateral 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 embodiments, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen 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, which comprises the following steps:
1) steel pile casting is squeezed into underwater rock stratum
Several steel-pipe piles are squeezed into respectively in water-bed rock stratum 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 fashioned iron；
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 through
Hard rock stratum under water-bed；
3) steel pile casting after connecing height at the top of is squeezed into water-bed hard rock stratum
High steel pile casting length is connect by drilling depth determination, high steel pile casting is connect on drilling platform, is then protected steel with vibration hammer
Cylinder bottom is squeezed into the water-bed hard rock stratum of inclination, at this point, steel pile casting bottom not yet reaches drilling hole bottom；
4) steel pile casting and vacuum tubular capsule in making
The interior steel pile casting that outer diameter is less than steel pile casting internal diameter is made, while making 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 outer peripheral surface of interior steel pile casting on the outside of vacuum tubular capsule, then
Main Grouting Pipe lower end and exhaust pipe lower end are fixedly connected with vacuum tubular capsule upper end respectively, are welded with number on interior steel pile casting top
Root sunpender；
5) steel pile casting is hung in steel pile casting together with vacuum tubular capsule in
Loop wheel machine on drilling platform is hung in interior steel pile casting and vacuum tubular capsule in steel pile casting by several sunpenders, 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 muti-piece curved plate interval
End, the top of vacuum tubular capsule is limited under muti-piece 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, under the action of grouting pressure, are located at steel
Vacuum tubular capsule between casing and interior steel pile casting is gradually full, extends 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
Gap between rock stratum and hard rock stratum；
7) continue to drill and complete the construction in steel pile casting
High-strength mortar or grouting agent to inject in vacuum tubular capsule is dry, after intensity reaches design requirement, continues
Then drilling construction is 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,
Complete the construction of bored concrete pile.
2. inclined rock base steel pile casting as described in claim 1 is fixed and bottom blocking method, which is characterized in that in step 2) certainly
Depth H=3m~the 5m at steel pile casting bottom to drilling hole bottom.
3. inclined rock base steel pile casting as described in claim 1 is fixed and bottom blocking method, which is characterized in that institute in step 2)
State the impact drilling diameter D≤steel pile casting internal diameter d.
4. inclined rock base steel pile casting as described in claim 1 is fixed and bottom blocking method, which is characterized in that in step 4)
Vacuum tubular capsule is launched into rectangular enclosure body, and the intracorporal longitudinal center of rectangular enclosure, which is equipped with, leads to rectangular enclosure body bottom
Longitudinal Grouting Pipe, the longitudinal direction Grouting Pipe and up and down spaced several lateral Grouting Pipes are 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 described in claim 1 is fixed and bottom blocking method, which is characterized in that in step 5)
Gap delta=5cm~10cm between steel pile casting inner wall and interior steel pile casting outer peripheral surface.
6. inclined rock base steel pile casting as claimed in claim 4 is fixed and bottom blocking method, which is characterized 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107675707A CN107675707A (en) | 2018-02-09 |
| CN107675707B true CN107675707B (en) | 2019-06-25 |
Family
ID=61136543
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107675707B (en) |
Families Citing this family (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 | Steel casing planting construction method suitable for deep water bare rock condition |
| CN114250771A (en) * | 2022-01-04 | 2022-03-29 | 李亮 | Rock stratum steel casing inserting and punching method |
| CN114808930B (en) * | 2022-03-21 | 2024-08-09 | 中交二航局第一工程有限公司 | Rapid slurry leakage stopping device for bored pile on sea area riprap dike and construction method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11291044A (en) * | 1998-04-07 | 1999-10-26 | Nkk Corp | Manufacture of steel pipe pile coated with titanium clad steel |
| JP5199166B2 (en) * | 2009-03-31 | 2013-05-15 | 三谷セキサン株式会社 | Foundation pile structure by site construction and construction method of foundation pile |
| CN201520987U (en) * | 2009-07-16 | 2010-07-07 | 中国京冶工程技术有限公司 | Flexible bag-type corrosion prevention device and anti-corrosion pile using same |
| CN201843077U (en) * | 2010-06-28 | 2011-05-25 | 中铁十八局集团有限公司 | Pile casing used on high-oblique rocky river bed of shallow soil covering layer |
| CN103485336B (en) * | 2013-09-30 | 2015-06-24 | 中铁二十局集团有限公司 | Drilling pile drilling construction method of bead-type karst area |
| CN103835284B (en) * | 2014-02-21 | 2015-10-07 | 安徽省公路桥梁工程有限公司 | A kind of Pile In Drill In Karst Terrain structure and construction method |
| CN104532832A (en) * | 2014-11-20 | 2015-04-22 | 上海智岛建筑科技有限公司 | Steel retaining cylinder and application method thereof |
| CN104947654B (en) * | 2015-07-01 | 2017-01-18 | 山东金城建设有限公司 | Complicated water area inclined rock face large-diameter cast-in-place pile construction method |
| 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 |
-
2017
- 2017-09-14 CN CN201710825653.7A patent/CN107675707B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107675707A (en) | 2018-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107675707B (en) | Inclined rock base steel pile casting is fixed and bottom blocking method | |
| CN103233454B (en) | Processing method of soaking, vacuum preloading and slurry injecting for sand piles of collapsible loess foundation | |
| CN105927231B (en) | Circulating induction curtain grouting method for inclined shaft to pass through water-rich compact quicksand layer | |
| CN102691296B (en) | Pipe pile foundation for static-pressure grouting on pile side and rotary jet grouting at pile bottom and construction method thereof | |
| CN104499479B (en) | It is a kind of to pass through the dug pile construction method that sand gravel backfills layer | |
| CN100476082C (en) | Post-grouting construction method for long helical bore grouting pile and grouting device thereof | |
| CN104234055B (en) | A kind of prefabricated pile post-grouting device and technique thereof | |
| JP5990214B2 (en) | Reinforcement method of hole wall in construction method of cast-in-place concrete pile. | |
| CN108412503B (en) | Bias shallow-buried tunnel portal construction protection structure and construction method thereof | |
| CN103835284A (en) | Karst area drilling cast-in-place pile structure and construction method | |
| CN104294818B (en) | The construction method of concrete-pile | |
| CN106368219B (en) | A kind of the support reinforcement structure and construction method of deep basal pit | |
| CN108166483A (en) | Bored pile construction method | |
| CN110258536A (en) | Opposite-pulling anchor cable structure for reducing bias load and construction method | |
| CN109797740A (en) | A kind of cast-in-situ bored pile and its construction method across underground civil defence structure | |
| CN110258571A (en) | A kind of bored concrete pile pipe sinking pressure grouting construction method | |
| CN109989756A (en) | The control method of the routed sand of thick surface soil thin bedrock bored shaft gushing water | |
| JP2019015100A (en) | Removing method of earth retaining wall | |
| CN104074184B (en) | Pile base post-grouted expanded-base bored pile | |
| KR20100124028A (en) | Construction method of lower end expanded type cast-in-place piles | |
| CN206220101U (en) | A kind of support reinforcement structure of deep basal pit | |
| CN203613568U (en) | Anti-floating cement soil pile and anti-floating anchor rod combined anti-floating system | |
| KR100823980B1 (en) | Drain combination paker type pressurization grouting equipment and the upward method using the same | |
| CN211816292U (en) | Sand-flow prevention device for water-rich sand layer anchor rod construction | |
| CN104294817B (en) | The construction method of concrete-pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |