CN108086293A - A kind of construction technology of static pressure pile-sinking - Google Patents
A kind of construction technology of static pressure pile-sinking Download PDFInfo
- Publication number
- CN108086293A CN108086293A CN201711380176.4A CN201711380176A CN108086293A CN 108086293 A CN108086293 A CN 108086293A CN 201711380176 A CN201711380176 A CN 201711380176A CN 108086293 A CN108086293 A CN 108086293A
- Authority
- CN
- China
- Prior art keywords
- pile
- sinking
- static pressure
- bull stick
- speed
- 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
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/22—Placing by screwing down
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of construction technologies of static pressure pile-sinking, belong to technical field of building construction.It solves the problems, such as that existing static pressure pile-sinking efficiency is low.The construction technology of this static pressure pile-sinking, comprises the steps of：Be compacted to stake smooth；Measurement stake position is indicated, and is passed through the spiral bull stick on static pressure pile-sinking machine and carried out pre- drilled as holes；Lifting tubular pipes, and pass through spiral bull stick and fetch earth, when pile pile pile sinking speed is excessively slow, the drill bit of spiral bull stick, which is dropped to below the bottom of pile pile, to drill, when the drill bit that pile pile pile sinking speed accelerates rear screw bull stick is bounced back in pile pile inner cavity；Pile pile to pile pile is backfilled.It settles pile pile by the way of static pressure pile-sinking, can reduce noise during construction, avoids disturbing residents, and the influence for Adjacent Buildings is smaller, and pile sinking is efficient.
Description
Technical field
The invention belongs to technical field of building construction, are related to a kind of construction technology of static pressure pile-sinking.
Background technology
Static pressed pile belongs to Squeezing Soil Pile, and soil compaction effect is apparent, on the one hand soil compaction effect can improve the side friction of engineering pile,
Increase bearing capacity of single pile, but on the other hand it will generate ill effect, especially in the widely distributed area of weak soil, even
It is destructive engineering accident, this influence is mainly manifested in the following aspects：Surrounding building and structures cracking, ground
Protuberance accident；The soil body, which is outwards spread, drives pipeline sidesway, pipeline is caused to break, drawing crack accident etc.；Also a kind of situation is to reinforce
It is mingled with certain thickness hardened sand bed in ground, pile sinking is difficult, and stake end is not achieved designed elevation, largely limits static pressure
The application and popularization of stake consolidated subsoil.Therefore, new construction technology and method are found so as to effectively solve in construction of Static Pressure Pile
Soil compaction effect just seems particularly necessary and real.
The content of the invention
The purpose of the present invention is being directed to existing technology, there are the above problems, it is proposed that a kind of construction work of static pressure pile-sinking
Skill, it the technical problem to be solved is that the soil compaction effect how reduced in construction of Static Pressure Pile, reduce to the building of surrounding and
Environment causes harmful effect.
The purpose of the present invention can be realized by following technical proposal：A kind of construction technology of static pressure pile-sinking, feature exist
In comprising the steps of：
Step a, be compacted to stake smooth；
Step b, measure stake position to be indicated, and pass through the spiral bull stick on static pressure pile-sinking machine and carry out pre- drilled as holes；
Step c, lifting tubular pipes, and static pressure pile-sinking is carried out to pile pile, it is fetched earth in the pile driving process of pile pile by spiral bull stick,
When pile pile pile sinking speed is excessively slow, the drill bit of spiral bull stick, which is dropped to below the bottom of pile pile, to drill, when pile pile pile sinking speed
The drill bit that degree accelerates rear screw bull stick is bounced back in pile pile inner cavity；
Step d, the first pile pile to N pile piles is backfilled.
This construction technology settles pile pile by the way of static pressure pile-sinking, can reduce noise during construction, avoid
It disturbs residents, the influence for Adjacent Buildings is smaller；It can also be carried out when static pressure pile-sinking speed is excessively slow by the drill bit of spiral bull stick
Sinking speed is accelerated in drilling.
In the construction technology of above-mentioned static pressure pile-sinking, in step d, the static pressure pile-sinking equipment is useful for detection pile pile and sinks
The speed sensor of reduction of speed degree, the speed sensor are electrically connected with controller, when speed sensor detects that pile pile settles
When speed is less than minimum speed threshold value, accelerates the rotating speed of spiral bull stick and cause the drill bit of spiral bull stick compared under the first pile pile
Drop, and the drill bit of spiral bull stick is located at below the bottom of the first pile pile.Mean that pile pile is settled when pile pile sinking speed is too low
Into erratic boulder layer, it is necessary to carry out break process to the stone in erratic boulder layer.
In the construction technology of above-mentioned static pressure pile-sinking, in step c, the static pressure pile-sinking equipment is useful for detection pile pile and sinks
The acceleration induction device of acceleration drops, and the acceleration induction device is electrically connected with controller, when acceleration induction device detects
When pile pile sedimentation acceleration is higher than highest acceleration rate threshold, the rotating speed of spiral bull stick is reduced.When the drill bit of spiral bull stick bores broken drift
After stone in rock layers, the transient acceleration of pile pile increases, and the stress that mutually should bear becomes larger, pile pile can be caused certain suddenly
Damage accordingly adjusts the rotating speed of spiral bull stick and drill bit, can further be damaged to avoid pile pile, while can also be drill bit at this time
Retraction prepare.
In the construction technology of above-mentioned static pressure pile-sinking, stablize speed when speed sensor detects that pile pile sinking speed reaches
When spending threshold value, spiral bull stick is moved up and bounced back in the inner cavity of the first pile pile.After the sinking speed of pile pile is stablized, represent under pile pile
Side exists without large-scale stone, and drill bit resets.
In the construction technology of above-mentioned static pressure pile-sinking, the screw rod of the spiral bull stick is hollow stem, and screw rod and drill bit
The bottom side being connected offers the through hole being connected with screw rod inner cavity, and the top of the screw rod is connected with water pump.Water pump to
Water is injected in screw rod inner cavity, and water not only drilling through convenient for the further of drill bit to infiltration around and below screw rod, but also can drill bit be bored
Rear soil and rubble etc. is taken to form mud, convenient for the sedimentation of pile pile.
In the construction technology of above-mentioned static pressure pile-sinking, the screw rod is connected with slush pump.Slush pump is used to bore on drill bit
The mud formed after taking is extracted, and avoids not fetching earth by screw rod due to excessively moistening, it is ensured that pile pile settles institute
The soil compaction of generation influences smaller.
In the construction technology of above-mentioned static pressure pile-sinking, being provided in the screw rod inner cavity can be along spiro rod length direction liter
The baffle of drop, when baffle is fallen completely, baffle all standing is on through hole.Water can not only be adjusted in baffle, simultaneously
When water pump and slush pump switch over the water in screw rod inner cavity can also be avoided to flow out, ensure the effect that slush pump draws mud
Rate.
Compared with prior art, the present invention has the following advantages that：
1st, the present invention settles pile pile by the way of static pressure pile-sinking, can reduce noise during construction, avoid disturbing
The people；
2nd, the present invention sets spiral bull stick in pile pile, can reduce soil compaction effect in pile pile infall process, avoids pair
Adjacent Buildings cause harmful effect；
3rd, spiral bull stick of the invention can be lifted according to situation on the spot, and rubble is carried out for the erratic boulder layer of ground end,
Ensure that pile pile can sink to projected depth.
Description of the drawings
Fig. 1 is the construction schematic diagram of the present invention.
Fig. 2 is the structure diagram of spiral bull stick in the present invention.
Fig. 3 is the System Control Figure of the present invention.
In figure, 1, static pressure pile-sinking machine；2nd, spiral bull stick；21st, drill bit；22nd, screw rod；221st, through hole；23rd, baffle；3rd, first
Pile pile；4th, the second pile pile；5th, the 3rd pile pile；6th, speed sensor；7th, controller；8th, acceleration induction device；9th, water pump；10th, mud
Stock pump；11st, static pressure head；12nd, Spiral Die；13rd, solenoid valve.
Specific embodiment
It is specific embodiments of the present invention and with reference to attached drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
With reference to Fig. 1, the present embodiment is a kind of construction technology for making implementation static pressure pile-sinking in the hillside fields of Nearby Structure, by with
Lower step composition：
Step a, be compacted to stake smooth；
Step b, measure stake position to be indicated, and pass through the spiral bull stick 2 on static pressure pile-sinking machine 1 and carry out pre- drilled as holes；
Step c, the first pile pile 3 is lifted by crane, and static pressure pile-sinking is carried out to the first pile pile 3, is led in the pile driving process of the first pile pile 3
Spiral bull stick 2 is crossed to fetch earth；
Step d, the second pile pile 4 is lifted by crane, and static pressure is carried out to the second pile pile 4 after the second pile pile 4 is connected with the first pile pile 3
Pile sinking is fetched earth by spiral bull stick 2 in the pile driving process of the second pile pile 4；
Step e, the 3rd pile pile 5 is lifted by crane, and static pressure is carried out to the 3rd pile pile 5 after the 3rd pile pile 5 is connected with the second pile pile 4
Pile sinking, when 5 pile sinking speed of the 3rd pile pile is excessively slow, the drill bit 21 of spiral bull stick 2, which is dropped to below the bottom of the first pile pile 3, to carry out
Drilling, when the drill bit 21 that 5 pile sinking speed of the 3rd pile pile accelerates rear screw bull stick 2 is bounced back in 3 inner cavity of the first pile pile；
Step f, step e is repeated until N pile piles extract spiral bull stick 2 out after being pressed into until reaching projected depth；
Step g, the first pile pile 3 to N pile piles are backfilled.
The pile pile used in the present embodiment is 600 pile pile, a diameter of 600mm, and closing thickness is 11cm, and pile pile length is 12
~15m is preferably 12~14m, further preferably 13m, and the pile pile selection of above-mentioned size can ensure that preceding two root canal pile enters
When resistance it is relatively small, can rapid subsidence, shorten construction man-hour, and construction technology is relatively simple.
22 a diameter of 20~25cm of screw rod of spiral bull stick 2 in the present embodiment is preferably 21~24cm, further preferably
For 22~23cm, between screw rod 22 and pile pile internal face between there is larger gap, fetch earth convenient for spiral bull stick 2.
With reference to Fig. 2 and Fig. 3, the static pressure pile-sinking machine 1 used in this construction technology has to control pipe pile static-pressure sedimentation quiet
Press is first 11, for controlling the Spiral Die 12 of 2 rotating speed of bolt bull stick and lifting, the speed sense for detecting pile pile sinking speed
Device 6 and the acceleration induction device 8 for detecting pile pile sedimentation acceleration are answered, speed sensor 6 and acceleration induction device 8 are with controlling
Device 7 is electrically connected, and the screw rod 22 of screw rod bull stick 2 is hollow stem, if the bottom side that screw rod 22 is connected with drill bit 21 offers
The dry through hole 221 being connected with 22 inner cavity of screw rod, is provided with ring baffle 23 on through hole 221, baffle 23 by with 7 phase of controller
Solenoid valve 13 even is controlled and can lifted along 22 length direction of screw rod, and when baffle 23 is fallen completely, 23 all standing of baffle exists
On through hole 221, so as to which the inner cavity of screw rod 22 and outside be isolated, the top of screw rod 22 is connected with slush pump 10 and water pump 9 in turn.
Specific as follows, in step c and step d, the decrease speed of the decrease speed of spiral bull stick 2 and the first pile pile 3 is kept
Unanimously.In step e and step f, when speed sensor 6 detects that pile pile sinking speed is less than minimum speed threshold value, increase
The power of Spiral Die 12 while spiral 2 rotating speed of bull stick is increased, and causes spiral bull stick 2 compared with the first pile pile 3 downwards
Mobile 2~3m, and until the drill bit 21 of spiral bull stick 2 is located at below the bottom of the first pile pile 3 at 0.5~1m, drill bit 21 is under
Stone in adamant erratic boulder layer that can be to stopping pile pile sedimentation during shifting crushes, and reduces the resistance of pile pile sedimentation
Power.After the drill bit 21 of spiral bull stick 2 bores the stone in broken erratic boulder layer, the transient acceleration of pile pile increases, and what mutually be should bear should
Power becomes larger suddenly, and certain damage can be caused to pile pile, and acceleration induction device 8 detects that the sedimentation acceleration value of pile pile surpasses at this time
When crossing threshold value, you can the rotating speed of corresponding adjustment spiral bull stick 2 and drill bit 21 can further be damaged to avoid pile pile, while may be used also
Think that the retraction of drill bit 21 is prepared, when speed sensor 6 detects that pile pile sinking speed reaches stabilized speed threshold value, spiral turns
Bar 2 is moved up and bounced back in the inner cavity of the first pile pile 3.
After drill bit 21 is moved to the lower section of the first pile pile 3, solenoid valve 13 drives baffle 23 to rise, and causes through hole 221
Opening, while water pump 9 is opened, and by the downward water filling in the inner cavity of screw rod 22, is on the one hand reduced the temperature of drill bit, on the other hand can
It allows soil softening, is more easy to drill and fetch earth；When acceleration induction device 8 detects plus sedimentation acceleration value is higher, you can by water
Pump 9 is closed, while slush pump 10 is opened, and is reversely extracted, the mud with water by 22 inner cavity of screw rod is extracted, is kept away
The soil layer exempted from below pile pile is excessively moist, so as to ensure the robustness on stake ground.
Water filling in this construction technology and mud is taken, is only carried out below the first pile pile 3, on the one hand reduce water consumption,
On the other hand again with can ensureing entire stake, the water content particularly in the soil layer without ratchel is less, ensures entire stake ground
Robustness.
The soil and crushed stone that backfill is taken out in above-mentioned steps by spiral bull stick 2 in this construction technology, can be reduced
The generation of building waste, comprehensive utilization effect are more preferable.
Controller 7, acceleration induction device 8, speed sensor 6 and solenoid valve 13 in the present embodiment are all the prior art.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
Generation, but without departing from spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of construction technology of static pressure pile-sinking, which is characterized in that comprise the steps of：
Step a, be compacted to stake smooth；
Step b, measure stake position to be indicated, and pass through the spiral bull stick (2) on static pressure pile-sinking machine (1) and carry out pre- drilled as holes；
Step c, lifting tubular pipes, and static pressure pile-sinking is carried out to pile pile, it is fetched earth in the pile driving process of pile pile by spiral bull stick, works as pipe
When sunk pile speed is excessively slow, the drill bit (21) of spiral bull stick (2), which is dropped to below the bottom of pile pile, to drill, when pile pile pile sinking
The drill bit (21) that speed accelerates rear screw bull stick (2) is bounced back in pile pile inner cavity；
Step d, pile pile is backfilled.
2. the construction technology of static pressure pile-sinking according to claim 1, which is characterized in that in step c, the static pressure pile-sinking machine
(1) there is the speed sensor (6) for detecting pile pile sinking speed, the speed sensor (6) electrically connects with controller (7)
It connects, when speed sensor (6) detects that pile pile sinking speed is less than minimum speed threshold value, accelerates the rotating speed of spiral bull stick (2)
And the drill bit (21) of spiral bull stick (2) is moved down compared with the first pile pile (3), and the drill bit (21) of spiral bull stick (2) is located at
Below the bottom of first pile pile (3).
3. the construction technology of static pressure pile-sinking according to claim 2, which is characterized in that in step c, the static pressure pile-sinking machine
(1) there is the acceleration induction device (8) for detecting pile pile sedimentation acceleration, the acceleration induction device (8) and controller (7)
It is electrically connected, when acceleration induction device (8) detects that pile pile sedimentation acceleration is higher than highest acceleration rate threshold, reduces spiral and turn
The rotating speed of bar (2).
4. the construction technology of static pressure pile-sinking according to claim 3, which is characterized in that when speed sensor (6) detects
When pile pile sinking speed reaches stabilized speed threshold value, spiral bull stick (2) is moved up and bounced back in the inner cavity of pile pile.
5. the construction technology of the static pressure pile-sinking according to claim 1 or 2 or 3 or 4, which is characterized in that the spiral bull stick
(2) screw rod (22) is hollow stem, and screw rod (22) is offered with the bottom side that drill bit (21) is connected and screw rod (22) is interior
The through hole (221) that chamber is connected, the top of the screw rod (22) are connected with water pump (9).
6. the construction technology of static pressure pile-sinking according to claim 5, which is characterized in that the screw rod (22) is connected with mud
It pumps (10).
7. the construction technology of static pressure pile-sinking according to claim 6, which is characterized in that set in the inner cavity of the screw rod (22)
It is equipped with the baffle (23) that can be lifted along screw rod (22) length direction, when baffle (23) is fallen completely, baffle (23) all standing
On through hole (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380176.4A CN108086293A (en) | 2017-12-20 | 2017-12-20 | A kind of construction technology of static pressure pile-sinking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380176.4A CN108086293A (en) | 2017-12-20 | 2017-12-20 | A kind of construction technology of static pressure pile-sinking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108086293A true CN108086293A (en) | 2018-05-29 |
Family
ID=62177347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711380176.4A Pending CN108086293A (en) | 2017-12-20 | 2017-12-20 | A kind of construction technology of static pressure pile-sinking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086293A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725146A (en) * | 2009-12-02 | 2010-06-09 | 江守慈 | Static sunken pile construction technique for alternatively, sectionally and gradually spirally leading hole and statically sinking pile in pipe |
| CN202440815U (en) * | 2012-02-07 | 2012-09-19 | 陕西桩鑫建设工程有限公司 | Forming device for long-spiral filling pile extruded into rock |
| CN205399418U (en) * | 2016-02-15 | 2016-07-27 | 中国能源建设集团江苏省电力设计院有限公司 | Sharp structure of stake that reinforcing PHC tubular pile pile sinking broke ground |
| CN106988308A (en) * | 2017-03-29 | 2017-07-28 | 江苏中大建设集团有限公司 | Grouting behind shaft or drift lining pile for prestressed pipe and its construction technology |
-
2017
- 2017-12-20 CN CN201711380176.4A patent/CN108086293A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725146A (en) * | 2009-12-02 | 2010-06-09 | 江守慈 | Static sunken pile construction technique for alternatively, sectionally and gradually spirally leading hole and statically sinking pile in pipe |
| CN202440815U (en) * | 2012-02-07 | 2012-09-19 | 陕西桩鑫建设工程有限公司 | Forming device for long-spiral filling pile extruded into rock |
| CN205399418U (en) * | 2016-02-15 | 2016-07-27 | 中国能源建设集团江苏省电力设计院有限公司 | Sharp structure of stake that reinforcing PHC tubular pile pile sinking broke ground |
| CN106988308A (en) * | 2017-03-29 | 2017-07-28 | 江苏中大建设集团有限公司 | Grouting behind shaft or drift lining pile for prestressed pipe and its construction technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101812976B (en) | Adjustable multiple coil extruding and expanding drilling tool | |
| CN102852141B (en) | Rock-socketed pipe pile foundation with pile core by concrete pouring and pile side by static pressure grouting and construction method for rock-socketed pipe pile foundation | |
| CN104631438B (en) | Long auger guncreting uplift pile construction method | |
| CN103603342A (en) | Construction method of ultra-long bored concrete pile with large-diameter casing combination | |
| CN107794915A (en) | It is adapted to the karst cave treatment method of pile foundation construction in karst area | |
| CN205260041U (en) | Method of freezing supporting construction is spouted soon to level | |
| CN104314078A (en) | Concrete pile construction equipment and construction method thereof | |
| CN107178077B (en) | karst area karst cave overburden grouting reinforcement structure and design method thereof | |
| CN104164873B (en) | Prestressed pipe pile and construction method thereof | |
| CN108330973A (en) | Pile pulling device under low clearance height and quick pile extracting method | |
| CN104264653A (en) | Superhigh energy level dynamic compaction and replacement compatible construction process | |
| CN103953030A (en) | Threaded screwing inserting bar compaction filling pile | |
| CN102767174A (en) | Dynamic and static water-discharging vibration method | |
| CN106088092B (en) | Pile pile piling process occurs refusing the solution of hammer situation | |
| CN101575855A (en) | Non soil taking hole guiding process for sinking prestressed pipe pile or prefabricated square pile | |
| CN207633341U (en) | A kind of static pressure pile-sinking machine | |
| CN102031780A (en) | Water flushing construction method of static tubular pile of sand pile tip | |
| CN106869153A (en) | A kind of method of the quick soft soil foundation treatment of well-points dewatering | |
| CN106930274A (en) | The a full set of cylinder rotatory boring castinplace pile construction method that a kind of reinforcing bar cage location is fixed | |
| CN203808055U (en) | Screw post-reinforced compacted pile | |
| CN204080796U (en) | Injection forming Variable Section Steel pile tube expands crowded device | |
| CN108086293A (en) | A kind of construction technology of static pressure pile-sinking | |
| CN107882032A (en) | A kind of static pressure pile-sinking machine | |
| CN108049405A (en) | A kind of static pressure pile-sinking construction technology | |
| CN206233232U (en) | A kind of upper and lower part expansion type soil cement is combined pile tube |
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: 20180529 |
|
| RJ01 | Rejection of invention patent application after publication |