CN109898569A - The detection construction method of composite cement soil stake - Google Patents
The detection construction method of composite cement soil stake Download PDFInfo
- Publication number
- CN109898569A CN109898569A CN201910306483.0A CN201910306483A CN109898569A CN 109898569 A CN109898569 A CN 109898569A CN 201910306483 A CN201910306483 A CN 201910306483A CN 109898569 A CN109898569 A CN 109898569A
- Authority
- CN
- China
- Prior art keywords
- cement
- soil
- pile
- outer tube
- stake
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- 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
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)
Abstract
The invention discloses a kind of detection construction method of composite cement soil stake, including peripheral pile, core, core stake construction, peripheral pile i.e. first, core stake are second, including the following steps: (one) construct first；(2) it constructs second: construction detection first, and form second.The hollow cement earth pile that the present invention is formed is suitable for composite foundation, is also applied for pattern foundation pit supporting structure；Composite cement soil stake is formed, is suitable for high-strength composite foundation, is also suitable stiff composite pile, root consolidates stake；The present invention both can increase the mass intensity of first soil cement, also can synchronous integrated construction detection first soil cement quality；It can equally be well applied to engineering investigation preliminary phase, achieve many things at one stroke.
Description
Technical field
The present invention relates to a kind of detection construction methods of composite cement soil stake.
Background technique
Existing cement earth pile, cement (mortar) soil stake, either ground in-situ stirring concrete earth pile or ground premixing
Recharge underground cement earth pile needs to be further improved in place of construction detection method comes with some shortcomings.
Summary of the invention
The purpose of the present invention is to provide one kind can improve soil cement quality, can also synchronize answering for detection soil cement quality
The detection construction method of Heshui soil stake.
The technical solution of the invention is as follows:
A kind of detection construction method of composite cement soil stake, the construction including peripheral pile, core stake, peripheral pile i.e. first, core stake
I.e. second, it is characterized in that: including the following steps:
(1) it constructs first；
(2) it constructs second: construction detection first, and form second；
Including one of following method
Method A:
(1) in place: drilling rod is located in the first cement earth pile center constructed；
(2) sink: by the drilling rod indentation test soil cement equipped with static sounding head, the injection of soil cement is surveyed by measurement system
Resistance determines the physico mechanical characteristic of soil cement, directly detects the quality of soil cement；If drilling rod indentation, static sounding are had any problem,
The matched outer tube casing of size is then matched outside drilling rod, by way of interaction rod boring, the follow-up of outer tube casing, drilling rod indentation
Outer tube casing, outer tube casing sink down into set depth by external force；The quality of detection soil cement indirectly；Outer tube casing is secondary simultaneously
Squeezed first cement earth pile, improves the mass intensity of cement earth pile；
(3) it pulls out: will pull out on drilling rod, outer tube casing to setting height on, form hollow cement earth pile second, backfill in hollow cavity
Filler material forms the stake of pile body composite cement soil；Hollow cavity bottom back cover, every bottom or base expanding and base expanding, form the composite cement soil stake of stake bottom；
Method B:
(1) in place: outer tube is located in the first cement earth pile center constructed；
(2) sink: the punching hammer freely falling body equipped with dynamic sounding contact, sounding rod being sunk down into soil cement, measurement is passed through
System mark passes through blow counts, determines the physico mechanical characteristic of soil cement, directly detects the quality of soil cement；Under feeler inspection contact
Heavy, dynamic sounding is had any problem, then hammers the outer apolegamy matched outer tube casing of size into shape in punching, hammered into shape under freely falling body by interaction punching
It is heavy to sink down into set depth with outer tube external force, the quality of soil cement is detected indirectly；Punching hammer outer tube casing secondary squeezed the simultaneously
One cement earth pile, improves the mass intensity of cement earth pile；
(3) it is pulled out on: will pull out on punching hammer, outer tube casing to setting height, form hollow cement earth pile second；It is returned in hollow cavity
Filler material is filled out, the stake of pile body composite cement soil is formed；Hollow cavity bottom back cover, every bottom or base expanding and base expanding, form the composite cement soil stake of stake bottom.
First construction method includes one of following method:
Method A:
(1) telephone-moving is in place: drilling rod is located in and sets in fixed pile by mobile device；
(2) spinning sinks: drilling rod spinning being sunk down into set depth, according to soil body situation, carries out jet, water spray, spray ash, whitewashing
One or more of processing；
(3) rotation, which is pulled on, mentions: drilling rod rotation being pulled on and is mentioned to setting height, according to soil body situation, carries out jet, water spray, spray ash, whitewashing
One or more of processing；
(4) (2) and (3) are repeated, until first meets sets requirement；
Method B:
(1) telephone-moving is in place: outer tube is located in and sets in fixed pile by mobile device；
(2) immersed tube: sinking down into set depth for outer tube immersed tube, will be in premixing soil cement recharge outer tube；
(3) tube drawing: will pull out on outer tube to setting height, until recharge cement earth pile meets sets requirement.
Construct first when, according to sets requirement, place is ready for pre-processing with ground.
In the method A of second pile construction method, static sounding head is pure standard contact probe or high-strength feeler inspection for detection
Head.
Dynamic sounding in the method B of second pile construction method is contact probe, and sounding rod, the standard of punching hammer composition are free
Falling bodies power hammer, or similar follow-on three-in-one high-strength freely falling body power hammer.
Filler material of the invention can be the agglutination materials such as the particles such as soil, sand discrete material or soil cement, cement mix
Material.
In step (2) method A and method B, outer tube casing not on pull out, make in soil-cement body enhancing and put more energy into body, for compound
Ground；Outer tube casing adds hot melt set, and isolation film, lubricating oil are used for pattern foundation pit supporting structure.
In step (2) method A and method B, pre- embedded ess-strain in hollow soil-cement body hollow cavity, Reinforcement Stress-count,
Sensor fibre, pile body sedimentation pipe or pile tip settlement pipe are used for scientific research and testing, with real-time monitoring.
After second forms, cyclic annular steel is arranged first upper end in first form using looped sections cement earth pile
Set pushes until by cemented together first, second separation failure, with detection first soil-cement body and second
Cast-in-place pile body between frictional force.
In step (2) method B, in free fall hammer indwelling soil cement, it to be used for pattern foundation pit supporting structure.
The hollow cement earth pile that the present invention is formed is suitable for composite foundation, is also applied for pattern foundation pit supporting structure；Form complex cement
Native stake is suitable for high-strength composite foundation, is also suitable stiff composite pile, root consolidates stake；
The present invention both can increase the mass intensity of first soil cement, also can synchronous integrated construction detect first soil cement
Quality；It can equally be well applied to engineering investigation preliminary phase, achieve many things at one stroke.
Below with reference to embodiment, the invention will be further described.
Specific embodiment
A kind of detection construction method of composite cement soil stake, the construction including peripheral pile, core stake, peripheral pile i.e. first,
Core stake is second, including the following steps:
(1) it constructs first；
(2) it constructs second: construction detection first, and form second；
Including one of following method
Method A:
(1) in place: drilling rod is located in the first cement earth pile center constructed；
(2) sink: by the drilling rod indentation test soil cement equipped with static sounding head, the injection of soil cement is surveyed by measurement system
Resistance determines the physico mechanical characteristic of soil cement, directly detects the quality of soil cement；If drilling rod indentation, static sounding are had any problem,
The matched outer tube casing of size is then matched outside drilling rod, by way of interaction rod boring, the follow-up of outer tube casing, drilling rod indentation
Outer tube casing, outer tube casing sink down into set depth by external force；The quality of detection soil cement indirectly；Outer tube casing is secondary simultaneously
Squeezed first cement earth pile, improves the mass intensity of cement earth pile；
(3) it pulls out: will pull out on drilling rod, outer tube casing to setting height on, form hollow cement earth pile second, backfill in hollow cavity
Filler material forms the stake of pile body composite cement soil；Hollow cavity bottom back cover, every bottom or base expanding and base expanding, form the composite cement soil stake of stake bottom；
Method B:
(1) in place: outer tube is located in the first cement earth pile center constructed；
(2) sink: the punching hammer freely falling body equipped with dynamic sounding contact, sounding rod being sunk down into soil cement, measurement is passed through
System mark passes through blow counts, determines the physico mechanical characteristic of soil cement, directly detects the quality of soil cement；Under feeler inspection contact
Heavy, dynamic sounding is had any problem, then hammers the outer apolegamy matched outer tube casing of size into shape in punching, hammered into shape under freely falling body by interaction punching
It is heavy to sink down into set depth with outer tube external force, the quality of soil cement is detected indirectly；Punching hammer outer tube casing secondary squeezed the simultaneously
One cement earth pile, improves the mass intensity of cement earth pile；
(3) it is pulled out on: will pull out on punching hammer, outer tube casing to setting height, form hollow cement earth pile second；It is returned in hollow cavity
Filler material is filled out, the stake of pile body composite cement soil is formed；Hollow cavity bottom back cover, every bottom or base expanding and base expanding, form the composite cement soil stake of stake bottom.
First construction method includes one of following method:
Method A:
(1) telephone-moving is in place: drilling rod is located in and sets in fixed pile by mobile device；
(2) spinning sinks: drilling rod spinning being sunk down into set depth, according to soil body situation, carries out jet, water spray, spray ash, whitewashing
One or more of processing；
(3) rotation, which is pulled on, mentions: drilling rod rotation being pulled on and is mentioned to setting height, according to soil body situation, carries out jet, water spray, spray ash, whitewashing
One or more of processing；
(4) (2) and (3) are repeated, until first meets sets requirement；
Method B:
(1) telephone-moving is in place: outer tube is located in and sets in fixed pile by mobile device；
(2) immersed tube: sinking down into set depth for outer tube immersed tube, will be in premixing soil cement recharge outer tube；
(3) tube drawing: will pull out on outer tube to setting height, until recharge cement earth pile meets sets requirement.
Construct first when, according to sets requirement, place is ready for pre-processing with ground.
In the method A of second pile construction method, static sounding head is the pure standard contact probe or high-strength nonstandard for detection
Contact probe.
Dynamic sounding in the method B of second pile construction method is contact probe, and sounding rod, the standard of punching hammer composition are free
Falling bodies power hammer, or similar follow-on three-in-one nonstandard high-strength freely falling body power hammer.
Filler material of the invention can be the agglutination materials such as the particles such as soil, sand discrete material or soil cement, cement mix
Material.
In step (2) method A and method B, outer tube casing not on pull out, make in soil-cement body enhancing and put more energy into body, for compound
Ground；Outer tube casing adds hot melt set, and isolation film, lubricating oil are used for pattern foundation pit supporting structure.
In step (2) method A and method B, pre- embedded ess-strain in hollow soil-cement body hollow cavity, Reinforcement Stress-count,
Sensor fibre, pile body sedimentation pipe or pile tip settlement pipe are used for scientific research and testing, with real-time monitoring.
After second forms, cyclic annular steel is arranged first upper end in first form using looped sections cement earth pile
Set pushes until by cemented together first, second separation failure, with detection first soil-cement body and second
Cast-in-place pile body between frictional force.
In step (2) method B, in free fall hammer indwelling soil cement, it to be used for pattern foundation pit supporting structure.
Claims (9)
1. a kind of detection construction method of composite cement soil stake, the construction including peripheral pile, core stake, peripheral pile i.e. first, core
Stake i.e. second, it is characterized in that: including the following steps:
(1) it constructs first；
(2) it constructs second: construction detection first, and form second；
Including one of following method
Method A:
(1) in place: drilling rod is located in the first cement earth pile center constructed；
(2) sink: by the drilling rod indentation test soil cement equipped with static sounding head, the injection of soil cement is surveyed by measurement system
Resistance determines the physico mechanical characteristic of soil cement, directly detects the quality of soil cement；If drilling rod indentation, static sounding are had any problem,
The matched outer tube casing of size is then matched outside drilling rod, by way of interaction rod boring, the follow-up of outer tube casing, drilling rod indentation
Outer tube casing, outer tube casing sink down into set depth by external force；The quality of detection soil cement indirectly；Outer tube casing is secondary simultaneously
Squeezed first cement earth pile, improves the mass intensity of cement earth pile；
(3) it pulls out: will pull out on drilling rod, outer tube casing to setting height on, form hollow cement earth pile second, backfill in hollow cavity
Filler material forms the stake of pile body composite cement soil；Hollow cavity bottom back cover, every bottom or base expanding and base expanding, form the composite cement soil stake of stake bottom；
Method B:
(1) in place: outer tube is located in the first cement earth pile center constructed；
(2) sink: the punching hammer freely falling body equipped with dynamic sounding contact, sounding rod being sunk down into soil cement, measurement is passed through
System mark passes through blow counts, determines the physico mechanical characteristic of soil cement, directly detects the quality of soil cement；Under feeler inspection contact
Heavy, dynamic sounding is had any problem, then hammers the outer apolegamy matched outer tube casing of size into shape in punching, hammered into shape under freely falling body by interaction punching
It is heavy to sink down into set depth with outer tube external force, the quality of soil cement is detected indirectly；Punching hammer outer tube casing secondary squeezed the simultaneously
One cement earth pile, improves the mass intensity of cement earth pile；
(3) it is pulled out on: will pull out on punching hammer, outer tube casing to setting height, form hollow cement earth pile second；It is returned in hollow cavity
Filler material is filled out, the stake of pile body composite cement soil is formed；Hollow cavity bottom back cover, every bottom or base expanding and base expanding, form the composite cement soil stake of stake bottom.
2. the detection construction method of composite cement soil stake according to claim 1, it is characterized in that: first construction
Method includes one of following method:
Method A:
(1) telephone-moving is in place: drilling rod is located in and sets in fixed pile by mobile device；
(2) spinning sinks: drilling rod spinning being sunk down into set depth, according to soil body situation, carries out jet, water spray, spray ash, whitewashing
One or more of processing；
(3) rotation, which is pulled on, mentions: drilling rod rotation being pulled on and is mentioned to setting height, according to soil body situation, carries out jet, water spray, spray ash, whitewashing
One or more of processing；
(4) (2) and (3) are repeated, until first meets sets requirement；
Method B:
(1) telephone-moving is in place: outer tube is located in and sets in fixed pile by mobile device；
(2) immersed tube: sinking down into set depth for outer tube immersed tube, will be in premixing soil cement recharge outer tube；
(3) tube drawing: will pull out on outer tube to setting height, until recharge cement earth pile meets sets requirement.
3. the detection construction method of composite cement soil stake according to claim 1 or 2, it is characterized in that: at construction first,
According to sets requirement, place is ready for pre-processing with ground.
4. the detection construction method of composite cement soil stake according to claim 1 or 2, it is characterized in that: the second pile driving construction side
In the method A of method, static sounding head is pure standard contact probe or high-strength contact probe for detection.
5. the detection construction method of composite cement soil stake according to claim 1 or 2, it is characterized in that: the second pile driving construction side
Dynamic sounding in the method B of method is contact probe, sounding rod, the standard freely falling body power hammer of punching hammer composition or similar
Follow-on three-in-one high-strength freely falling body power hammer.
6. the detection construction method of composite cement soil stake according to claim 1 or 2, it is characterized in that: step (2) method A
And in method B, outer tube casing not on pull out, make in soil-cement body enhancing and put more energy into body, be used for composite foundation；Outer tube casing adds hot melt
Set, isolation film, lubricating oil are used for pattern foundation pit supporting structure.
7. the detection construction method of composite cement soil stake according to claim 1 or 2, it is characterized in that: step (2) method A
And in method B, pre- embedded ess-strain, Reinforcement Stress-count, sensor fibre in hollow soil-cement body hollow cavity, pile body sedimentation pipe or
Pile tip settlement pipe.
8. the detection construction method of composite cement soil stake according to claim 1 or 2, it is characterized in that: first uses ring
Shape is segmented the form of cement earth pile, after second forms, cyclic annular steel bushing is arranged first upper end and pushes until by cementing one
First, second separation failure risen, to detect the friction between first soil-cement body and second cast-in-place pile body
Power.
9. the detection construction method of composite cement soil stake according to claim 1 or 2, it is characterized in that: step (2) method B
In, in free fall hammer indwelling soil cement, it is used for pattern foundation pit supporting structure.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306483.0A CN109898569A (en) | 2019-04-17 | 2019-04-17 | The detection construction method of composite cement soil stake |
| PCT/CN2019/106655 WO2020211285A1 (en) | 2019-04-17 | 2019-09-19 | Inspection and construction method for composite cement-soil pile |
| ZA2020/07122A ZA202007122B (en) | 2019-04-17 | 2020-11-16 | Inspection and construction method for composite cement-soil pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306483.0A CN109898569A (en) | 2019-04-17 | 2019-04-17 | The detection construction method of composite cement soil stake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109898569A true CN109898569A (en) | 2019-06-18 |
Family
ID=66955771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910306483.0A Pending CN109898569A (en) | 2019-04-17 | 2019-04-17 | The detection construction method of composite cement soil stake |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109898569A (en) |
| WO (1) | WO2020211285A1 (en) |
| ZA (1) | ZA202007122B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456117A (en) * | 2020-04-02 | 2020-07-28 | 中北大学 | Pile forming loading model test device and method for stiff composite pile |
| WO2020211285A1 (en) * | 2019-04-17 | 2020-10-22 | 朱建新 | Inspection and construction method for composite cement-soil pile |
| CN112281825A (en) * | 2020-10-22 | 2021-01-29 | 陈远 | Construction method of composite pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2057428U (en) * | 1989-09-27 | 1990-05-23 | 李志强 | Portable dual-purpose sounding and ramming machine |
| CN103821138A (en) * | 2012-07-02 | 2014-05-28 | 朱建新 | Composite pile construction method |
| CN105113498A (en) * | 2015-08-17 | 2015-12-02 | 建设综合勘察研究设计院有限公司 | Method for constructing high-strength core composite piles |
| CN108360508A (en) * | 2018-01-31 | 2018-08-03 | 浙江绿艺园林工程有限公司 | The construction method of cast-in-place concrete core cement soil stirring pile |
| CN108824424A (en) * | 2018-06-05 | 2018-11-16 | 河海大学 | Adaptive diameter changeable agitation pile-forming apparatus and pile making method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0841856A (en) * | 1994-07-27 | 1996-02-13 | Mitsubishi Heavy Ind Ltd | Level-above-water controlling sand pile driving boat |
| JP2724548B2 (en) * | 1995-07-10 | 1998-03-09 | 関西電力株式会社 | 2-stage enlarged head |
| JP4488889B2 (en) * | 2004-12-27 | 2010-06-23 | 株式会社竹中工務店 | Vertical loading test method for existing piles below the groundwater level |
| CN100480474C (en) * | 2006-04-06 | 2009-04-22 | 朱建新 | Internal-tamping immersed tube bored concrete tamping-extending pile construction method |
| CN102644269A (en) * | 2012-05-04 | 2012-08-22 | 朱建新 | Non-earth-borrowing composite pile and construction method thereof |
| JP6589549B2 (en) * | 2015-10-20 | 2019-10-16 | Ｊｆｅエンジニアリング株式会社 | How to build cast-in-place piles |
| CN105350525A (en) * | 2015-11-09 | 2016-02-24 | 朱建新 | Construction method for piles |
| CN106049464B (en) * | 2016-06-06 | 2018-07-03 | 朱建新 | The construction method of stake |
| CN105839638A (en) * | 2016-06-06 | 2016-08-10 | 徐�明 | Convenient and efficient construction method for piles |
| CN109898569A (en) * | 2019-04-17 | 2019-06-18 | 朱建新 | The detection construction method of composite cement soil stake |
-
2019
- 2019-04-17 CN CN201910306483.0A patent/CN109898569A/en active Pending
- 2019-09-19 WO PCT/CN2019/106655 patent/WO2020211285A1/en active Application Filing
-
2020
- 2020-11-16 ZA ZA2020/07122A patent/ZA202007122B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2057428U (en) * | 1989-09-27 | 1990-05-23 | 李志强 | Portable dual-purpose sounding and ramming machine |
| CN103821138A (en) * | 2012-07-02 | 2014-05-28 | 朱建新 | Composite pile construction method |
| CN105113498A (en) * | 2015-08-17 | 2015-12-02 | 建设综合勘察研究设计院有限公司 | Method for constructing high-strength core composite piles |
| CN108360508A (en) * | 2018-01-31 | 2018-08-03 | 浙江绿艺园林工程有限公司 | The construction method of cast-in-place concrete core cement soil stirring pile |
| CN108824424A (en) * | 2018-06-05 | 2018-11-16 | 河海大学 | Adaptive diameter changeable agitation pile-forming apparatus and pile making method |
Non-Patent Citations (1)
| Title |
|---|
| 吴立等: "《岩土加固技术与方法》", 30 June 2015, 武汉大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211285A1 (en) * | 2019-04-17 | 2020-10-22 | 朱建新 | Inspection and construction method for composite cement-soil pile |
| CN111456117A (en) * | 2020-04-02 | 2020-07-28 | 中北大学 | Pile forming loading model test device and method for stiff composite pile |
| CN112281825A (en) * | 2020-10-22 | 2021-01-29 | 陈远 | Construction method of composite pile |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202007122B (en) | 2021-06-30 |
| WO2020211285A1 (en) | 2020-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102011399B (en) | PHC pile-based multiple high jet pedestal pile construction method | |
| WO2018210019A1 (en) | Pile formation method for down-the-hole impact rotary jet composite piles | |
| CN109898569A (en) | The detection construction method of composite cement soil stake | |
| CN104018512B (en) | The caisson sinking construction method dynamic to environment micro-turbulence | |
| CN106988302B (en) | A kind of high inclination-angle competent bed rotary digging pile driving construction engineering method | |
| CN102535529A (en) | Construction method of self-balancing method pile foundation bearing capacity test device | |
| CN110318393A (en) | A kind of construction method of composite pile | |
| CN105019485B (en) | A kind of excavation of foundation pit dead load test on pile foundation detection method | |
| CN204199335U (en) | A kind of pressure release well reducing PHC tube pile construction soil compaction effect | |
| CN206667247U (en) | Large dosage expanding cement paddle recoverable anchor pole for temporary supporting | |
| CN110387879A (en) | A kind of concrete filling pile construction method of hydraulic vibration hammer hidden pipe | |
| CN201722711U (en) | Internal force testing device for PHC tubular pile load test | |
| CN102808407B (en) | Construction method of soft-foundation reinforced concrete cast-in-place pile | |
| CN105926594A (en) | Double-pipe construction method for static pressure pipe-sinking carrier cast-in-place pile | |
| CN104947664A (en) | Thick stone sea-filling layer prestressing force high-strength concrete square pile construction method | |
| CN207003463U (en) | Solution cavity area Bridge Pile Foundation Construction device and construction system | |
| CN212129131U (en) | Crowded native pore-forming stock construction structures | |
| CN101586337A (en) | Holding type major diameter static pressure sinking pipe cast-in-place pile construction method and pile-pressing machine thereof | |
| CN110067205B (en) | Construction method for embedding permanent steel pile casing wrapped outside bridge pier stud | |
| CN102183230B (en) | An anchoring device of a datum mark in a boring | |
| CN111749231A (en) | Double-sleeve double-drive full-rotation pile forming device and pile forming process | |
| CN105780829A (en) | Device for rapidly and accurately detecting sediment thickness of cast-in-situ bored pile | |
| CN109339044A (en) | A kind of concrete pipe pile construction equipment | |
| CN212316905U (en) | Construction equipment of anti-necking immersed tube bored concrete pile | |
| CN212506303U (en) | Partially recyclable secant pile supporting structure |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190618 |
|
| RJ01 | Rejection of invention patent application after publication |