CN103161157B - Cast-in-place pile capable of conducting tube sinking and rotary excavating earth borrowing synchronously of full pile long steel pipe dado - Google Patents
Cast-in-place pile capable of conducting tube sinking and rotary excavating earth borrowing synchronously of full pile long steel pipe dado Download PDFInfo
- Publication number
- CN103161157B CN103161157B CN201310116101.0A CN201310116101A CN103161157B CN 103161157 B CN103161157 B CN 103161157B CN 201310116101 A CN201310116101 A CN 201310116101A CN 103161157 B CN103161157 B CN 103161157B
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- power head
- pipe
- rotary power
- auger stem
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a cast-in-place pile capable of conducting tube sinking and rotary excavating earth borrowing synchronously of a full pile long steel pipe dado. The cast-in-place pile comprises an upper rotating power head provided with an auger stem and a lower rotating power head provided with a pipe joint, wherein the pipe joint is connected with the upper end of a steel pipe in a sleeved mode, and the steel pipe is provided with a connecting device which can be integrated with a standard section pipe. The pile forming steps comprise that the auger stem enters into an upper opening of the steel pipe, penetrates through the lower rotating power head, and enters into the steel pipe; a pile position is prepared, the lower rotating power head drives the steel pipe to rotate and sink into a soil layer along the clockwise direction, the upper rotating power head rotates synchronously along the clockwise direction, soil bodies which are penetrated by the steel pipe are lifted by the auger stem and discharged through a soil outlet, the standard section pipe is sleeved on the upper opening of the steel pipe; the auger stem penetrates through the lower rotating power head, enters into the steel pipe and the standard section pipe, and discharges the soil bodies entering into the pipes, and the steps are conducted until a design required depth is satisfied; and the auger stem is pulled out from the steel pipe, a reinforcement cage and filled concrete are placed in the steel pipe and the standard section pipe. The cast-in-place pile has the advantages of eliminating the problem of pollution to city environment in the process of pile foundation of civil and architectural engineering fundamentally, and improving construction efficiency notably.
Description
Technical field
The present invention relates to a kind of pile foundation of civil construction project, especially relate to and a kind ofly adopt the synchronous immersed tube of the long steel pipe dado of full stake of full stake long casting pile steel mould-pipe retaining wall, spinning sinking pipe and the dry synchronous construction that fetches earth of spiral and revolve the castinplace pile taking soil.
Background technology
Belonging to the most frequently used in non-extruding earth performance pile-type in existing pile foundation engineering is holing with slurry wall protection castinplace pile, and this holing with slurry wall protection castinplace pile can according to the requirement of design bearing capacity value, chooses a footpath and stake reaches the requirement of design bearing capacity value, affects without soil compaction; Since pile foundation adopts Commercial Concrete, the concrete quality and reliability of stake is comparatively stable, and is widely used in engineering; In Pile Foundation, the stake of more than 80% is had to be the bored pile adopting this mud off.
But, the bored pile Problems existing of existing mud off is: can cause discarded drilling slurry serious environment pollution in municipal construction, as flowed into municipal sewage system, block urban discharging pipeline, enter the rivers in city and cause on the riverbed of rivers and rise, cause the cross-section of river to reduce because drilling slurry enters rivers steathily, affect the safety of drainning off floodwaters in city.
Construction 1m
3the concrete of bored pile, need 7m
3clean water, produces 4m
3discarded drilling slurry; Such as apply bored pile 300,000 every year, average stake footpath is Φ 800mm, and average stake is long is 50m, be then the drilling slurry that generation 3,000 ten thousand m3 is discarded, be equivalent to the volume of the West Lake, 3 Hangzhoupro thirty.So a large amount of discarded drilling slurries, can not find storable place at all.
Thus the bored pile of existing mud off inevitably brings serious urban and rural environment to pollute in the construction of city civil construction project pile foundation.
Summary of the invention
Technical problem to be solved by this invention provides a kind of adopt dry soil extracting process for above-mentioned prior art present situation and have the synchronous immersed tube of the long steel pipe dado of full stake of remarkable pile efficiency and revolve the castinplace pile taking soil.
The present invention solves the problems of the technologies described above adopted technical scheme: the synchronous immersed tube of the long steel pipe dado of a kind of full stake takes the castinplace pile of soil with revolving, it is characterized in that, comprise the top rotary power head being connected with auger stem, this auger stem in a tubular form, this auger stem is again through the bottom rotary power head of band soil outlet, the bottom of this bottom rotary power head is provided with union, and this union and steel pipe upper end are socketed.Its effect is that top rotary power head connection auger stem turns clockwise, and this auger stem runs through again bottom rotary power head and enters in steel pipe; Lower rotary power head drives steel pipe along being rotated counterclockwise, and adopts two, upper and lower part rotary power head to be exactly realize good synchronous immersed tube and revolve the function taking soil;
Described bottom rotary power head is provided with soil outlet; Described auger stem rotates discharges the soil body in steel pipe with the spiral shell leaf rotated being pushed into this soil outlet.
Described steel pipe is provided with linkage, this linkage comprises the sleeve pipe affixed with described steel pipe bottom and interconnective standard paragraphs pipe, this sleeve pipe periphery is provided with the T-slot be made up of vertical slot and translot, described standard paragraphs pipe upper end is provided with rectangular cam, this rectangular cam width matches with the width of described vertical slot, and this rectangular cam height matches with the height of described translot; Its effect is that steel pipe can be connected with standard paragraphs pipe by linkage, also synchronously sinks to soil layer with spreading steel pipe; When the vertical slot of the rectangular cam insertion sleeve pipe of standard paragraphs pipe upper end, then, along with the sleeve rotating with steel pipe, namely rectangular cam enters translot, namely reaches the object that standard paragraphs pipe is connected with steel pipe.
Described sleeve pipe is provided with mounting flange itself and reinforcing rib, and this mounting flange is used for together with described steel-pipe welding.The effect of mounting flange itself and reinforcing rib is the reliability guaranteeing connection accuracy between steel pipe and standard paragraphs pipe and connection thereof;
Described rectangular cam arranges 4, and arranges along the circumference uniform distribution of described standard paragraphs pipe; So that improve the joint efficiency between steel pipe and standard paragraphs pipe.
This T-slot top described is provided with central small hole, and this central small hole and described vertical slot center coincide.
Be provided with location small salient point below described rectangular cam center line, this small salient point center, location and described rectangular cam center line coincide.The effect of this location small salient point is the center of display rectangular cam, when steel pipe and standard paragraphs pipe must from interface be separated extract time, the small salient point of the steel pipe vertical slot central small hole on top and the standard paragraphs pipe rectangular cam of bottom need only be aimed on a vertical line, can rapidly steel pipe and standard paragraphs pipe be extracted from interface.
The synchronous immersed tube of the long steel pipe dado of a kind of full stake and the pile step of revolving the castinplace pile taking soil, comprise the top rotary power head and bottom rotary power head that are connected with auger stem, described auger stem is through this bottom rotary power head, the bottom of this bottom rotary power head is provided with union, this union is socketed with described steel pipe upper end: after the bottom of described bottom rotary power head is connected with described union, the socket suitable for reading of this union and described steel pipe, after described top rotary power head connects described auger stem, this auger stem enters the suitable for reading of described steel pipe, and enters in described steel pipe through described bottom rotary power head, then in place in design stake position, described bottom rotary power head drives described steel pipe to be rotated in a clockwise direction and sinks to soil layer, simultaneously, the described auger stem be connected with described top rotary power head enters in steel pipe through described lower rotary power head, synchronously be rotated in a clockwise direction, the soil body entering described steel pipe is upwards raised by this auger stem or is interrupted and pulls out, the soil body in this steel pipe arrives described bottom rotary power head soil outlet and discharges, continue described steel pipe spinning underground layer to taking over position, the auger stem be connected with described top rotary power head extracts the suitable for reading of this steel pipe, the suitable for reading of this steel pipe is departed from the union be connected bottom the rotary power head of bottom, described standard paragraphs pipe box is connected to the suitable for reading of described steel pipe, described top rotary power head connects described auger stem, this auger stem is through described bottom rotary power head, enter in described steel pipe and described standard paragraphs pipe, be rotated in a clockwise direction, the soil body entering this steel pipe is upwards raised by described auger stem or is interrupted and pulls out, the soil outlet position that the soil body in this steel pipe and standard paragraphs pipe arrives bottom rotary power head is discharged, and continues this steel pipe and this standard paragraphs pipe spinning underground layer, until the designing requirement degree of depth stops, described top rotary power head connects described auger stem, and this auger stem is extracted from the suitable for reading of described steel pipe, the union of the bottom of described bottom rotary power head departs from the suitable for reading of described steel pipe, then in this steel pipe and standard paragraphs pipe, insert reinforcing cage, fill concrete, pull out this steel pipe and standard paragraphs pipe, i.e. pile again.
Compared with prior art, the invention has the advantages that: adopt the long steel pipe dado of full stake spinning sinking pipe and the dry synchronous construction that fetches earth of spiral again, fundamentally eliminate the pollution of borehole wall-protection mud, in the construction of city civil construction project pile foundation, especially fundamentally solve the pollution difficult problem to urban environment; Next is that efficiency of construction significantly improves.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the sleeve pipe schematic diagram of the embodiment of the present invention.
Fig. 3 is embodiment of the present invention linkage schematic diagram.
Fig. 4 is embodiment of the present invention standard paragraphs pipe schematic diagram.
Fig. 5 is embodiment of the present invention pile program schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Fig. 1 ~ Fig. 5, the present embodiment adopts following structure particularly: it comprises the top rotary power head 2 being connected with auger stem 6, and this auger stem 6 is also clockwise direction rotation in a tubular form; This auger stem 6 enters in steel pipe 1 through bottom rotary power head 3 again; The bottom of this bottom rotary power head is provided with union 7, and this union 7 is socketed with steel pipe 1 upper end, and this steel pipe 1 is driven by bottom rotary power head 3 and rotates in the counterclockwise direction, as shown in Figure 1;
Synchronous immersed tube with revolve that to take native process be such: bottom rotary power head 3 drives steel pipe 1 spinning sinking pipe, auger stem 6 dextrorotation that the soil body entering steel pipe 1 is connected by upper rotary power head 2 is pulled out on transferring, and the soil outlet 9 soil body being brought to lower rotary power head 3 is discharged;
In order to realize the length requirement of different castinplace pile, steel pipe 1 can be connected with standard paragraphs pipe 10 by linkage, with spreading steel pipe 1, and synchronously sinks to soil layer; This linkage comprises the sleeve pipe 11 of steel pipe 1 bottom and interconnective standard paragraphs pipe 10, and this sleeve pipe is provided with mounting flange 15 and reinforcing rib 16, and this mounting flange is used for being welded and fixed with steel pipe 1; This sleeve pipe periphery is provided with the T-slot be made up of vertical slot 13 and translot 14, and this T-slot top is provided with central small hole 4, and this central small hole and vertical slot 13 center coincide;
Described standard paragraphs pipe 10 upper end is provided with rectangular cam 8, and the width of this rectangular cam 8 matches with the width of vertical slot 13, and the height of this rectangular cam 8 matches with the height of translot 14;
When the rectangular cam 8 of standard paragraphs pipe upper end inserts the vertical slot 13 of sleeve pipe 11, then, along with the sleeve pipe 11 with steel pipe 1 rotates, namely rectangular cam 8 enters translot 14 and reaches the object that standard paragraphs pipe 10 is connected with steel pipe 1; Make bottom rotary power head 3 by steel pipe 1 transmitting torque to standard paragraphs pipe 10, also namely achieve the object of spreading steel pipe 1.
Location small salient point 5 is provided with below rectangular cam 8 center line, the effect of this location small salient point 5 is centers of display rectangular cam 8, when steel pipe 1 and standard paragraphs pipe 10 must from interface be separated extract time, the small salient point 5 of the central small hole 4 and the standard paragraphs pipe rectangular cam of bottom that need only aim at the steel pipe vertical slot on top is on a vertical line, namely rectangular cam is in the center of vertical slot, steel pipe 1 and standard paragraphs pipe 10 can be extracted from interface.
When the soil body whole in steel pipe is got only, cleaning stake holes, then inserts reinforcing cage 21, pours into concrete 22, rotation is pulled out steel pipe 10 and goes out ground with standard paragraphs pipe 20, namely completes the synchronous immersed tube of steel pipe dado of the present invention and revolves and dig cast in place pile 23:
The present invention fundamentally eliminates the pollution of borehole wall-protection mud, be with the long steel pipe dado of full stake and with synchronous immersed tube with revolve the castinplace pile digging dry soil extracting process and construct.
The pile step of the present embodiment is:
The first step, the bottom of bottom rotary power head 3 is connected with union 7, and this union is socketed the suitable for reading of steel pipe 1, upper rotary power head 2 connects auger stem 6, and this auger stem enters the pore of steel pipe 1, then through bottom rotary power head 3, enter in steel pipe 1, in place in design stake position;
Second step, lower rotary power head 3 drives steel pipe 1 to be rotated in a clockwise direction and sinks to soil layer, simultaneously, the auger stem 6 be connected with upper rotary power head enters in steel pipe 1 through lower rotary power head 3, synchronously be rotated in a clockwise direction, the soil body entering steel pipe is upwards raised by this auger stem or is interrupted and pulls out, the soil outlet 9 that the soil body in this steel pipe arrives lower rotary power head is discharged; Continue by steel pipe 1 spinning underground layer to taking over position, the auger stem be connected with upper rotary power head extracts the suitable for reading of steel pipe 1, departs from the suitable for reading of steel pipe 1 with the union 7 be connected bottom lower rotary power head;
3rd step, is inserted in the suitable for reading of steel pipe 10 by standard paragraphs pipe; Top rotary power head 2 connects auger stem 6, this auger stem is through bottom rotary power head 3, enter steel pipe 1 with in standard paragraphs pipe 10, be rotated in a clockwise direction, the soil body entering steel pipe 1 is upwards raised by auger stem 6 or is interrupted and pulls out, soil outlet 9 position that steel pipe 1 arrives bottom rotary power head 3 with the soil body in standard paragraphs pipe 10 is discharged, and continues steel pipe 1 and standard paragraphs pipe 10 spinning underground layer, until the designing requirement degree of depth stops;
4th step, top rotary power head 2 connects auger stem 6, and this auger stem 6 is extracted from the suitable for reading of steel pipe, and the union 7 of the bottom of bottom rotary power head 3 departs from the suitable for reading of standard paragraphs pipe 10, then, in steel pipe 1 with standard paragraphs pipe 10, insert reinforcing cage 21, fill concrete 22, the union 7 of the bottom of bottom rotary power head 3 is socketed the suitable for reading of standard paragraphs pipe 10, rotary power head 3 drives steel pipe alternately to rotate along clockwise direction with counterclockwise, because each steel pipe section header leaves 20 centimetres of swing offsets, after going up most the 20 centimetres of displacements of joint steel pipe rotary, lower joint steel pipe is driven to rotate again, if complete, stake is long 4 section headers, can drive after the stake of upper joint must have (4-1) × 20=60 centimetre relatively and descend most joint steel pipe, original friction of rest power becomes to move frictional resistance after swing offset, rotary power head 3 drives standard paragraphs pipe 10 and the rotary motion of steel pipe 1 alternating direction, the frictional resistance of this steel pipe and surrounding soil property is significantly declined, this steel pipe all can be extracted ground with very little uplift force, namely complete the synchronous immersed tube of the long steel pipe dado of full stake and revolve the castinplace pile taking soil.
Claims (6)
1. the synchronous immersed tube of the long steel pipe dado of full stake with revolve the castinplace pile taking soil, comprise the top rotary power head (2) being connected with auger stem (6), this auger stem in a tubular form, this auger stem is again through bottom rotary power head (3), the bottom of this bottom rotary power head is provided with union (7), this union and steel pipe (1) upper end are socketed, described bottom rotary power head (3) is provided with soil outlet (9), it is characterized in that, described steel pipe (1) is provided with linkage, this linkage comprises the sleeve pipe (11) affixed with described steel pipe (1) bottom and interconnective standard paragraphs pipe (10), this sleeve pipe periphery is provided with the T-slot be made up of vertical slot (13) and translot (14), described standard paragraphs pipe upper end is provided with rectangular cam (8), this rectangular cam width matches with the width of described vertical slot, this rectangular cam height matches with the height of described translot.
2. according to claim 1 the complete synchronous immersed tube of the long steel pipe dado of stake with revolve the castinplace pile taking soil, it is characterized in that, described sleeve pipe (11) is provided with mounting flange (15) and reinforcing rib (16), together with this mounting flange is used for welding with described steel pipe (1).
3. according to claim 1 the complete synchronous immersed tube of the long steel pipe dado of stake with revolve the castinplace pile taking soil, it is characterized in that, described rectangular cam (8) arranges 4, and arranges along the circumference uniform distribution of described standard paragraphs pipe (10).
4. according to claim 1 the complete synchronous immersed tube of the long steel pipe dado of stake with revolve the castinplace pile taking soil, it is characterized in that, described T-slot top is provided with central small hole (4), and this central small hole and described vertical slot (13) center coincide.
5. according to claim 1 the complete synchronous immersed tube of the long steel pipe dado of stake with revolve the castinplace pile taking soil, it is characterized in that, be provided with location small salient point (5) below described rectangular cam (8) center line, this small salient point center, location and this rectangular cam (8) center line coincide.
6. the synchronous immersed tube of the long steel pipe dado of full stake with the pile step of revolving the castinplace pile taking soil is, comprise the top rotary power head and bottom rotary power head that are connected with auger stem, described auger stem is through this bottom rotary power head, the bottom of this bottom rotary power head is provided with union, this union and steel pipe upper end are socketed, and this steel pipe is provided with the linkage comprising sleeve pipe and standard paragraphs pipe;
The first step, after the bottom of described bottom rotary power head (3) is connected with described union (7), the socket suitable for reading of this union and described steel pipe (1); After described top rotary power head (2) connects described auger stem (6), this auger stem enters the suitable for reading of described steel pipe, and enters in described steel pipe through described bottom rotary power head; Then in place in design stake position;
Second step, described bottom rotary power head drives described steel pipe to be rotated in a clockwise direction and sinks to soil layer, simultaneously, the described auger stem be connected with described top rotary power head enters in steel pipe through described bottom rotary power head, synchronously be rotated in a clockwise direction, the soil body in described steel pipe will be entered upwards raised by this auger stem or be interrupted and pull out, the soil body in this steel pipe arrives described lower rotary power head soil outlet (9) and discharges, continue described steel pipe spinning underground layer to taking over position, the auger stem be connected with described top rotary power head extracts the suitable for reading of this steel pipe, the suitable for reading of this steel pipe is departed from the union be connected bottom the rotary power head of bottom,
3rd step, is socketed on the suitable for reading of described steel pipe by described standard paragraphs pipe (10); Described top rotary power head connects described auger stem, this auger stem is through described bottom rotary power head, enter in described steel pipe and described standard paragraphs pipe, be rotated in a clockwise direction, the soil body entering this steel pipe is upwards raised by described auger stem or is interrupted and pulls out, the soil outlet position that the soil body in this steel pipe and standard paragraphs pipe arrives bottom rotary power head is discharged, and continues this steel pipe and this standard paragraphs pipe spinning underground layer, until the designing requirement degree of depth stops;
4th step, described top rotary power head connects described auger stem, and this auger stem is extracted from the suitable for reading of described steel pipe; The union of the bottom of described bottom rotary power head departs from the suitable for reading of described steel pipe, in this steel pipe and standard paragraphs pipe, then inserts reinforcing cage (21), fills concrete (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310116101.0A CN103161157B (en) | 2013-03-27 | 2013-03-27 | Cast-in-place pile capable of conducting tube sinking and rotary excavating earth borrowing synchronously of full pile long steel pipe dado |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310116101.0A CN103161157B (en) | 2013-03-27 | 2013-03-27 | Cast-in-place pile capable of conducting tube sinking and rotary excavating earth borrowing synchronously of full pile long steel pipe dado |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103161157A CN103161157A (en) | 2013-06-19 |
| CN103161157B true CN103161157B (en) | 2015-02-25 |
Family
ID=48584666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310116101.0A Expired - Fee Related CN103161157B (en) | 2013-03-27 | 2013-03-27 | Cast-in-place pile capable of conducting tube sinking and rotary excavating earth borrowing synchronously of full pile long steel pipe dado |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103161157B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088285A (en) * | 2014-07-24 | 2014-10-08 | 上海强劲地基工程股份有限公司 | Method for constructing cement soil mixing pile and concrete pile meshed foundation pit supporting structure |
| CN111287763B (en) * | 2020-02-20 | 2021-04-23 | 海南大学 | Control method for preventing subway shield tunnel from long-term settlement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4009582A (en) * | 1975-10-29 | 1977-03-01 | Interpile Usa, Inc. | Method for forming deep cast-in-place caseless concrete piles |
| CN101831906A (en) * | 2009-03-09 | 2010-09-15 | 钱圣德 | Dry type pneumatic rock drilling pile-driving machine and working method thereof |
| RU2466239C1 (en) * | 2011-05-16 | 2012-11-10 | Закрытое акционерное общество "Гипростроймост" | Method to manufacture cast-in-place piles |
| CN202559338U (en) * | 2012-05-04 | 2012-11-28 | 中国有色金属工业昆明勘察设计研究院 | Screwing pile using air |
| CN203145004U (en) * | 2013-03-27 | 2013-08-21 | 孔超 | Whole pile long steel tube dado synchronous tube sinking and rotary excavating earth borrowing grouting pile |
-
2013
- 2013-03-27 CN CN201310116101.0A patent/CN103161157B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4009582A (en) * | 1975-10-29 | 1977-03-01 | Interpile Usa, Inc. | Method for forming deep cast-in-place caseless concrete piles |
| CN101831906A (en) * | 2009-03-09 | 2010-09-15 | 钱圣德 | Dry type pneumatic rock drilling pile-driving machine and working method thereof |
| RU2466239C1 (en) * | 2011-05-16 | 2012-11-10 | Закрытое акционерное общество "Гипростроймост" | Method to manufacture cast-in-place piles |
| CN202559338U (en) * | 2012-05-04 | 2012-11-28 | 中国有色金属工业昆明勘察设计研究院 | Screwing pile using air |
| CN203145004U (en) * | 2013-03-27 | 2013-08-21 | 孔超 | Whole pile long steel tube dado synchronous tube sinking and rotary excavating earth borrowing grouting pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103161157A (en) | 2013-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5084761B2 (en) | Construction method for underground heat exchanger and hollow tube and casing used in the method | |
| CN202117556U (en) | Auger driller for moulding concrete piles with different depth and shapes | |
| 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 | |
| CN203145004U (en) | Whole pile long steel tube dado synchronous tube sinking and rotary excavating earth borrowing grouting pile | |
| CN105114029A (en) | Water plugging method for poor sealing borehole in mine laneway | |
| CN203569561U (en) | Novel pile forming device of steel pipe protection wall cast-in-place piles following up drill | |
| CN103161157B (en) | Cast-in-place pile capable of conducting tube sinking and rotary excavating earth borrowing synchronously of full pile long steel pipe dado | |
| CN204551510U (en) | A kind of filled-up ground catchments pressure reduction well drop and drainage structure | |
| CN205012325U (en) | Prefabricated precipitation tubular pile in building foundation | |
| CN103276724B (en) | A kind of anti-floating pile of built-in nonmetal muscle material | |
| CN205116168U (en) | End grout static pressure tubular pile construction equipment is expanded in drilling | |
| CN101603311A (en) | The adopting heavy hammer-tamping compaction soil preformed hole jet grouting pile construction method | |
| CN203904990U (en) | Long spiral thin-walled grouting pile pipe casing with large-diameter cavity | |
| CN209178989U (en) | A kind of PHC tubular pole anti-freeze expansion processing unit | |
| CN204199277U (en) | The spiral building stake of filling concrete | |
| CN107268602A (en) | A kind of construction method of interlocking pile | |
| CN203188203U (en) | Thread filling pile capable of synchronously sinking pipeline and rotatably excavating and borrowing soil | |
| CN202659153U (en) | Push plate type cylindrical drill | |
| CN103161156A (en) | Threaded grouting pile enabling pipeline sinking and rotary excavating earth borrowing to be synchronous | |
| CN105239575A (en) | Construction device and construction method of bored cast-in-place static pressure pipe pile with enlarged bottom | |
| CN207193995U (en) | A kind of dewatering well that can be separated with well casing looks for middle environmental protecting device | |
| CN102011398B (en) | Device and method for forming high-frequency vibratory pressing displacement bored concrete pile | |
| CN207176874U (en) | A kind of pavement comprehensive pipe network and drainage system | |
| CN204023565U (en) | The long spiral thin wall filling pile of cavity pipe casing | |
| CN105781557B (en) | A kind of construction method of bored tunnel chemical grouting consolidation layer of sand |
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 | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Gong Dikuai Document name: Notice of termination of patent right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 |