CN102051877B - Prefabricated squeezing-expanding pile and construction method thereof - Google Patents
Prefabricated squeezing-expanding pile and construction method thereof Download PDFInfo
- Publication number
- CN102051877B CN102051877B CN2010105688325A CN201010568832A CN102051877B CN 102051877 B CN102051877 B CN 102051877B CN 2010105688325 A CN2010105688325 A CN 2010105688325A CN 201010568832 A CN201010568832 A CN 201010568832A CN 102051877 B CN102051877 B CN 102051877B
- Authority
- CN
- China
- Prior art keywords
- pile
- hollow
- stake
- preformed
- preformed pile
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000002689 soil Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 239000011372 high-strength concrete Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000002156 mixing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a prefabricated squeezing-expanding pile and a construction method thereof, belonging to the field of pile foundation engineering. The construction method comprises the following steps of: a) firmly connecting a pile plug (1) and a hollow prefabricated pile (2); b) carrying out pile-sinking construction; c) carrying out filling construction; d) squeezing an uncondensed pile body material into a soil body at the lower part of the hollow prefabricated pile (2) to form a pile-bottom expansion section (4); e) repeating the steps till the construction of the pile-bottom expansion section (4) is completed; and f) connecting stressed members into a common stressed body. In the invention, the problems that drifting sand and piping and the like can be possibly encountered in the underwater construction can be solved by injecting water into the hollow prefabricated pile (2), and the construction also can be carried out by adopting soil to replace the pile plug (1) afterpile sinking. The pile is convenient to construct and reliable in quality, greatly improves the bearing capability of the end parts of hollow prefabricated piles such as the traditional widely-applied PHC (Prestress High-strength Concrete) pipe piles, hollow square piles, steel pipe piles and the like, can be used as a bearing pile with pulling resistance and compression resistance, and is high in bearing capability and low in manufacturing cost.
Description
Technical field
The present invention relates to field of civil engineering, particularly relate to the pile foundation engineering field.
Background technology
Pile foundation engineering is one of important component part in the field of civil engineering; Engineering piles form commonly used at present mainly contains preformed pile and castinplace pile two big classifications; Wherein preformed pile comprises forms such as steel pipe pile, precast square pile, PHC pile tube, pre-stress hollow square pile; Be characterized in the prefabricated shaping postposition of engineering piles is gone into the soil body, utilize the stake and the acting in conjunction of soil that resistance to compression, resistance to plucking, bending resistance or horizontal bearing capacity are provided.Castinplace pile comprises forms such as bored pile, tube-sinking cast-in-situ pile, is characterized at first preexisting hole in geotechnical body, pours into the material of body of a pile pile then.Because of stake point bearing stratum or part stake side soil layer intensity height, in all kinds of castinplace piles, can improve bearing capacity of pile foundation with soil body contact surface through enlarging the stake end, for example ring stake, limb disc expanded bore pile all belong to the reaming stake of this type of character.Compare with castinplace pile, preformed pile is the PHC pile tube particularly, has advantages such as speed of application is fast, cost is low, strength of the mixing pile is high, and construction quality is easy to control, is widely used in each field of civil engineering at present.But present preformed pile pile body shape before inserting the soil body is confirmed; Can expand the end improves the preformed pile bearing capacity and has huge engineering practice meaning in preformed pile bottom; The method of at present up-to-date raising prefabricated pile end bearing capacity is for immersed tube bored through elder generation; Be pressed into the expanded bore pile that the job practices of precast pile is accomplished then, but this method has construction technology complicated, cost is high, the shortcoming of site operation difficult quality control; The method of another kind of raising preformed pile bearing capacity be through at the bottom of the stake, stake side slip casting improves the preformed pile bearing capacity; Because of preformed pile closely is connected with the soil body through squeezing soil after construction, thereby the bearing capacity that improves of this method is little and cost is high, thus at present efficiently the preformed pile counter-boring techniques be still a blank both domestic and external.
The content of invention
First purpose of the present invention is to provide first kind of prefabricated extruding-enlarging pile construction method; This prefabricated extruding-enlarging pile construction method can form stake end expanding reach when construction, can increase substantially the preformed pile bearing capacity, practices thrift the pile foundation engineering cost significantly; Easy construction, reliable in quality.
This prefabricated extruding-enlarging pile construction method may further comprise the steps:
A) utilize steel strand to pass through the reserving hole channel in the preformed pile of hollow, the stake plug firmly is connected with the preformed pile of hollow;
B) confirm the stake position, the preformed pile that the bottom is connected with the hollow of stake plug sinks to desired depth;
C) remove firm connection between the preformed pile of stake plug and hollow, remove stake and fill in, and the material of body of a pile that will not condense pours into the preformed pile of hollow;
D) hollow part of the preformed pile through hollow, the material of body of a pile that extruding is not condensed is clamp-oned in the soil body of preformed pile bottom of hollow the material of body of a pile that does not condense, and forms a stake end expanding reach;
E) according to the needs of expanding reach enlarging amplitude at the bottom of the stake; Determine whether that the material of body of a pile that will not condense in the repeating step (c) pours into the preformed pile of hollow, and determine whether repeating step (d), until accomplishing the construction of stake end expanding reach; Meet the demands like expanding reach at the bottom of the stake, then do not need this step;
F) preformed pile with hollow is connected to common beaer with stake end expanding reach and stake plug.
In above-mentioned prefabricated extruding-enlarging pile construction method, the above-mentioned material of body of a pile that does not condense can be the discrete materials such as a kind of or incoagulable rubble in the blended stock of material blendings such as not solidified concrete or the lime that does not condense or the cement that does not condense and rubble, flyash, slag.
Second purpose of the present invention is to provide second kind of prefabricated extruding-enlarging pile construction method; This prefabricated extruding-enlarging pile construction method can be accomplished the prefabricated extruding-enlarging pile construction below the groundwater table smoothly, and the generation of disasters such as the quicksand that can avoid possibly occurring in the subaqueous construction process, piping.
This second kind of prefabricated extruding-enlarging pile construction method may further comprise the steps:
A) the stake plug firmly is connected with the preformed pile of hollow;
B) confirm the stake position, the preformed pile that the bottom is connected with the hollow of stake plug sinks to desired depth;
C) to the hollow part water filling of the preformed pile of hollow, remove firm connection the between the preformed pile of stake plug and hollow, remove stake and fill in, and the material of body of a pile that will not condense pours into the preformed pile of hollow;
D) hollow part of the preformed pile through hollow, the material of body of a pile that extruding is not condensed is clamp-oned in the soil body of preformed pile bottom of hollow the material of body of a pile that does not condense, and forms a stake end expanding reach;
E) according to the needs of expanding reach enlarging amplitude at the bottom of the stake; Determine whether that the material of body of a pile that will not condense in the repeating step (c) pours into the preformed pile of hollow, and determine whether repeating step (d), until accomplishing the construction of stake end expanding reach; Meet the demands like expanding reach at the bottom of the stake, then do not need this step;
F) preformed pile with hollow is connected to common beaer with stake end expanding reach and stake plug.
The 3rd purpose of the present invention provides the third prefabricated extruding-enlarging pile construction method, and this prefabricated extruding-enlarging pile construction method does not need the stake plug, and penetrating resistance is little, and the soil compaction during pile driving effect is little.
This third prefabricated extruding-enlarging pile construction method may further comprise the steps:
A) confirm the stake position, the preformed pile of hollow is sunk to desired depth;
B) soil body in the preformed pile of entering hollow in the taking-up pile driving process, and the material of body of a pile that will not condense pours into the preformed pile of hollow;
C) hollow part of the preformed pile through hollow, the material of body of a pile that extruding is not condensed is clamp-oned in the soil body of preformed pile bottom of hollow the material of body of a pile that does not condense, and forms a stake end expanding reach;
D) according to the needs of expanding reach enlarging amplitude at the bottom of the stake; Determine whether that the material of body of a pile that will not condense in the repeating step (c) pours into the preformed pile of hollow, and determine whether repeating step (d), until accomplishing the construction of stake end expanding reach; Meet the demands like expanding reach at the bottom of the stake, then do not need this step;
E) preformed pile with hollow is connected to common beaer with stake end expanding reach.
The 4th purpose of the present invention is to provide a kind of prefabricated extruded and extended pile, and this prefabricated extruded and extended pile can be given full play to the potentiality of bearing course at pile end, has increased substantially the bearing capacity of preformed pile, and cost is low.
This prefabricated extruded and extended pile comprises preformed pile, stake end expanding reach, stake plug and the steel strand four parts composition of hollow; Expanding reach is positioned at the preformed pile bottom of hollow at the bottom of its king-pile; An expanding reach bottom at the bottom of stake plug is positioned at; Steel strand are for an expanding reach at the bottom of passing through, through the reserving hole channel in the preformed pile of hollow, and the member that firmly is connected with the stake plug.
In above-mentioned prefabricated extruded and extended pile, above-mentioned steel strand bottom firmly is connected with the stake plug, and top can be connected to the preformed pile stake top of hollow.
In above-mentioned prefabricated extruded and extended pile, can be at the hollow part concrete perfusion of the preformed pile of above-mentioned hollow.
Prefabricated extruded and extended pile of the present invention and job practices thereof can expand the bottom application worker to preformed pile, increase substantially resistance to plucking, the resistance to compression supporting capacity of preformed pile, save engineering cost.
Description of drawings
Fig. 1 is the squeezed preceding pile body structural representation of the used prefabricated extruding-enlarging pile construction method first step of one embodiment of the present of invention;
Fig. 2 is the squeezed preceding pile body structural representation of the used prefabricated extruding-enlarging pile construction method third step of one embodiment of the present of invention;
Fig. 3 is a pile body structural representation after the used prefabricated extruding-enlarging pile construction method of one embodiment of the present of invention is accomplished.
The specific embodiment
As of the present invention like Fig. 1 to an embodiment shown in Figure 3, main purpose is to introduce the structure construction of the prefabricated extruded and extended pile that prefabricated extruding-enlarging pile construction method, squeezed principle, squeezed back form.The first step of the prefabricated extruding-enlarging pile construction method of introducing in the present embodiment; The steel strand (3) that at first will be connected on the stake plug (1) pass through the interior reserving hole channel (6) of preformed pile (2) pile body of hollow; Fix with steel strand (3) stretch-draw and with ground tackle (7) on the stake top; Stake plug (1) just is connected to an integral body through steel strand (3) with the preformed pile (2) of hollow, for the third prefabricated extruding-enlarging pile construction method, does not then need this step.Thereby accomplish the first step of present embodiment, got into for second step.In this step, at first confirm the stake position according to design working drawing, the preformed pile (2) that will be connected with the hollow of stake plug (1) then sinks to desired depth, promptly gets into the bearing stratum certain depth, and is as shown in Figure 1.Thereby accomplish second step of present embodiment, get into the 3rd step of present embodiment.In this step; At first be positioned at of the constraint of the ground tackle (7) on stake top to steel strand (3) through releasing; Just removed firm connection the between the preformed pile (2) of stake plug (1) and hollow; Utilize diameter stake plug (1) to be pressed in the darker soil less than the Pile feeder of hollow part (5) diameter of the preformed pile (2) of hollow; Hole is formed on preformed pile (2) bottom in hollow; Extract Pile feeder then or pour in the hollow part (5) through the material of body of a pile that Pile feeder will not condense, the material of body of a pile that does not condense can be a kind of in the blended stock of material blendings such as the no slump concrete that does not condense or the lime that does not condense or the cement that does not condense and rubble, flyash, slag, or discrete material such as incoagulable rubble.In this step, can also the material of body of a pile that not condense be poured into hollow part (5) earlier, the material of body of a pile that does not directly condense through extruding is pressed into the soil body with stake plug (1).In this step; Like underground water; Then can use second kind of prefabricated extruding-enlarging pile construction method to construct; For fear of the phreatic disasters such as issuable quicksand, piping that pour in when removing stake plug (1), can fill water in the hollow part (5) of removing stake plug (1) preceding preformed pile (2), with the balance external water pressure with hollow.For the third prefabricated extruding-enlarging pile construction method, then need not remove stake plug (1), the soil body that only needs after pile sinking is accomplished, to take out in the hollow part (5) gets final product, and for the ease of reaming, can also further take out the part soil body below the stake point.Soil basketing method can adopt boring extracting soil, also method such as can adopt water to dash to fetch earth.Thereby accomplish the 3rd step of the present invention, got into for the 4th step.In this step; Only need hollow part (5) through the preformed pile (2) of hollow; The material of body of a pile that utilizes the Pile feeder extruding not condense just can make the material of body of a pile that does not condense clamp-on in the soil body of the preformed pile of hollow (2) bottom, forms stake end expanding reach (4) as shown in Figure 3; Thereby accomplish the 4th step of present embodiment, got into for the 5th step.This step mainly is the enlarging amplitude demand according to expanding reach at the bottom of the stake (4); Need to determine whether the pouring into and whether need the material of body of a pile that repetition the 4th step extruding do not condense and continue reaming of the material of body of a pile that does not condense in the 3rd step of repetition, meet design requirement until the reaming amplitude.Thereby accomplish the 5th step of present embodiment, got into for the 6th step.In this step, can take different modes that the preformed pile (2) of hollow is connected to common beaer with stake end expanding reach (4) and stake plug (1) to different stressed stake types; For pressure bearing pile; Can be linked as integral body through the preformed pile (2) that condenses hollow of stake end expanding reach (4); Stressed jointly, also can fill in joint bar between preformed pile (2) and stake end expanding reach (4) of (1), hollow in stake, to increase its globality.For uplift pile; Then can steel strand (3) be connected with stake plug (1); And expanding reach (4) arrived the stake top anti-pulling capacity directly is provided at the bottom of steel strand (3) were passed through; Can also be fixed in the stake top then through push up appropriate stretch-draw steel strand (3) in stake, make the preformed pile (2) of stake plug (1), hollow and stake end expanding reach (4) firmly be connected to common beaer.Thereby accomplish prefabricated extruding-enlarging pile construction method of the present invention., construction can form prefabricated extruded and extended pile as shown in Figure 3 after accomplishing; The preformed pile (2), stake end expanding reach (4), stake plug (1) and steel strand (3) four parts that comprise hollow are formed; Expanding reach at the bottom of its king-pile (4) is positioned at preformed pile (2) bottom of hollow, expanding reach (a 4) bottom at the bottom of stake plug (1) is positioned at, and steel strand (3) are an expanding reach (4) at the bottom of passing through; Through the reserving hole channel (6) in the preformed pile (2) of hollow, and the member that firmly is connected with stake plug (1).
This patent includes but not limited to other job practicess of the alternative use of professional person in this area.
Claims (6)
1. prefabricated extruding-enlarging pile construction method is characterized in that may further comprise the steps:
A) utilize steel strand (3) to pass through the reserving hole channel (6) in the preformed pile (2) of hollow, stake plug (1) firmly is connected with the preformed pile (2) of hollow;
B) confirm the stake position, the preformed pile (2) that the bottom is connected with the hollow of stake plug (1) sinks to desired depth;
C) remove firm connection between the preformed pile (2) of stake plug (1) and hollow, remove stake and fill in (1), and the material of body of a pile that will not condense pours into the preformed pile (2) of hollow;
D) hollow part (5) of the preformed pile (2) through hollow, the material of body of a pile that extruding is not condensed is clamp-oned in the soil body of the preformed pile of hollow (2) bottom the material of body of a pile that does not condense, and forms a stake end expanding reach (4);
E) according to the needs of expanding reach at the bottom of the stake (4) enlarging amplitude; Determine whether that the material of body of a pile that will not condense among the repeating step c pours into the preformed pile of hollow (2), and determine whether repeating step d, until accomplishing stake end expanding reach (4) construction; Meet the demands like expanding reach at the bottom of the stake (4), then do not need this step;
F) preformed pile (2) with hollow is connected to common beaer with stake end expanding reach (4) and stake plug (1).
2. prefabricated extruding-enlarging pile construction method is characterized in that may further comprise the steps:
A) stake plug (1) firmly is connected with the preformed pile (2) of hollow;
B) confirm the stake position, the preformed pile (2) that the bottom is connected with the hollow of stake plug (1) sinks to desired depth;
C) to hollow part (5) water filling of the preformed pile (2) of hollow, remove firm connection the between the preformed pile (2) of stake plug (1) and hollow, remove stake and fill in (1), and the material of body of a pile that will not condense pours into the preformed pile (2) of hollow;
D) hollow part (5) of the preformed pile (2) through hollow, the material of body of a pile that extruding is not condensed is clamp-oned in the soil body of the preformed pile of hollow (2) bottom the material of body of a pile that does not condense, and forms a stake end expanding reach (4);
E) according to the needs of expanding reach at the bottom of the stake (4) enlarging amplitude; Determine whether that the material of body of a pile that will not condense among the repeating step c pours into the preformed pile of hollow (2), and determine whether repeating step d, until accomplishing stake end expanding reach (4) construction; Meet the demands like expanding reach at the bottom of the stake (4), then do not need this step;
F) preformed pile (2) with hollow is connected to common beaer with stake end expanding reach (4) and stake plug (1).
3. prefabricated extruding-enlarging pile construction method according to claim 1 is characterized in that the above-mentioned material of body of a pile that does not condense is the admixture or the incoagulable rubble of not solidified concrete or the lime that does not condense or the cement that does not condense and rubble, flyash, slag.
4. prefabricated extruded and extended pile; The preformed pile (2), stake end expanding reach (4), stake plug (1) and steel strand (3) four parts that comprise hollow; Expanding reach at the bottom of its king-pile (4) is positioned at preformed pile (2) bottom of hollow, expanding reach (a 4) bottom at the bottom of stake plug (1) is positioned at, and steel strand (3) are an expanding reach (4) at the bottom of passing through; Through the reserving hole channel (6) in the preformed pile (2) of hollow, and the member that firmly is connected with stake plug (1).
5. prefabricated extruded and extended pile according to claim 4 is characterized in that above-mentioned steel strand (3) bottom firmly is connected with stake plug (1), and top is connected to preformed pile (2) the stake top of hollow.
6. prefabricated extruded and extended pile according to claim 4 is characterized in that hollow part (5) concrete perfusion of the preformed pile (2) in above-mentioned hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105688325A CN102051877B (en) | 2010-12-01 | 2010-12-01 | Prefabricated squeezing-expanding pile and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105688325A CN102051877B (en) | 2010-12-01 | 2010-12-01 | Prefabricated squeezing-expanding pile and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102051877A CN102051877A (en) | 2011-05-11 |
| CN102051877B true CN102051877B (en) | 2012-05-30 |
Family
ID=43956651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105688325A Active CN102051877B (en) | 2010-12-01 | 2010-12-01 | Prefabricated squeezing-expanding pile and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102051877B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926409B (en) * | 2011-08-09 | 2015-10-28 | 上海建工五建集团有限公司 | A kind of construction method prevented erosion |
| CN109518685B (en) * | 2018-11-14 | 2021-05-04 | 天津中海水利水电工程有限公司 | Underwater precast pile structure and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB423171A (en) * | 1933-06-27 | 1935-01-28 | Dudley Hepburn Stent | Improvements in concrete piling |
| BE886484A (en) * | 1979-12-05 | 1981-04-01 | Hochtief A G Vorm Gebr Helfman | METHOD FOR PRODUCING PILES BY THREADING AND CASTING OF CONCRETE AND THRESHING DEVICE APPLYING THIS METHOD |
| CN1104280A (en) * | 1993-10-19 | 1995-06-28 | 俞晓 | Pre-poured composite tube pile and pile-making technology and apparatus thereof |
| NL1005793C2 (en) * | 1997-04-11 | 1998-10-19 | Erik Wouter Reus | Method for driving segmented foundation pile into ground |
| CN1749484A (en) * | 2005-10-17 | 2006-03-22 | 卫龙武 | Construction method for prefabricated tubular pile with expanding head |
| CN201943069U (en) * | 2010-12-01 | 2011-08-24 | 张继红 | Precast compacting-enlarging pile |
-
2010
- 2010-12-01 CN CN2010105688325A patent/CN102051877B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB423171A (en) * | 1933-06-27 | 1935-01-28 | Dudley Hepburn Stent | Improvements in concrete piling |
| BE886484A (en) * | 1979-12-05 | 1981-04-01 | Hochtief A G Vorm Gebr Helfman | METHOD FOR PRODUCING PILES BY THREADING AND CASTING OF CONCRETE AND THRESHING DEVICE APPLYING THIS METHOD |
| CN1104280A (en) * | 1993-10-19 | 1995-06-28 | 俞晓 | Pre-poured composite tube pile and pile-making technology and apparatus thereof |
| NL1005793C2 (en) * | 1997-04-11 | 1998-10-19 | Erik Wouter Reus | Method for driving segmented foundation pile into ground |
| CN1749484A (en) * | 2005-10-17 | 2006-03-22 | 卫龙武 | Construction method for prefabricated tubular pile with expanding head |
| CN201943069U (en) * | 2010-12-01 | 2011-08-24 | 张继红 | Precast compacting-enlarging pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102051877A (en) | 2011-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100519953C (en) | Pile sinking method of synchronization grouting static pressure precast pile | |
| CN104131556B (en) | The construction method of the mutual foundation drainage pile for prestressed pipe of a kind of soft or hard interlayer | |
| CN102011399B (en) | PHC pile-based multiple high jet pedestal pile construction method | |
| CN101812976B (en) | Adjustable multiple coil extruding and expanding drilling tool | |
| CN103993598B (en) | One is drawn hole and is implanted cloth bag crushed stone grouting pile and construction method | |
| CN103184734A (en) | Implanted and grouted compound pile and construction method | |
| CN201943069U (en) | Precast compacting-enlarging pile | |
| CN100532733C (en) | Diving casting cast-in-place pile construction method for constructing in scree layer and sand layer | |
| CN103321244A (en) | Construction method for additionally arranged basement in existing building on sand foundation | |
| CN206784372U (en) | Injection forming club-footed pile | |
| CN101936004A (en) | Precast expanding pile as well as construction method and construction mechanical equipment thereof | |
| CN106996104A (en) | Injection forming club-footed pile and its construction method | |
| CN111794216A (en) | Construction method of uplift carrier pile | |
| CN105649073A (en) | Static root drilling type construction method for planting piles | |
| CN201835276U (en) | Prefabricated reaming pile | |
| CN203213101U (en) | Embedding grouting combined pile | |
| CN208201874U (en) | A kind of open-cell cloth bag grouting structure | |
| CN104196013B (en) | A kind of composite Y shape stake and construction method thereof | |
| CN102051877B (en) | Prefabricated squeezing-expanding pile and construction method thereof | |
| CN102477743A (en) | Construction method for concrete bagged pouring in small-diameter pile hole | |
| CN203613568U (en) | Anti-floating cement soil pile and anti-floating anchor rod combined anti-floating system | |
| CN108842761A (en) | Drilling guiding prefabricated pile post-grouting technology | |
| CN201762705U (en) | Prefabricated extruding and expanding pile | |
| CN111636420A (en) | Construction equipment and construction method of anti-necking sinking pipe cast-in-place pile | |
| CN201650154U (en) | Adjustable multi-stage helical extruding type drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181107 Address after: 200086 502, room 4, Lane 306, Helen Road, Hongkou District, Shanghai. Patentee after: Shanghai Solid Earth Rock Engineering Co., Ltd. Address before: 200086 502, room 4, Lane 306, Helen Road, Shanghai. Patentee before: Zhang Jihong |
|
| TR01 | Transfer of patent right |