CN110552346A - Double-spraying double-shaft oblique cement-soil stirring and profile steel inserting integrated construction method and equipment - Google Patents
Double-spraying double-shaft oblique cement-soil stirring and profile steel inserting integrated construction method and equipment Download PDFInfo
- Publication number
- CN110552346A CN110552346A CN201910820645.2A CN201910820645A CN110552346A CN 110552346 A CN110552346 A CN 110552346A CN 201910820645 A CN201910820645 A CN 201910820645A CN 110552346 A CN110552346 A CN 110552346A
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- double
- assembly
- section steel
- cement
- underframe
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 125
- 239000010959 steel Substances 0.000 title claims abstract description 125
- 239000002689 soil Substances 0.000 title claims abstract description 56
- 238000003756 stirring Methods 0.000 title claims abstract description 52
- 238000005507 spraying Methods 0.000 title claims abstract description 26
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000004568 cement Substances 0.000 claims abstract description 49
- 238000005553 drilling Methods 0.000 claims abstract description 23
- 239000002002 slurry Substances 0.000 claims abstract description 9
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
Abstract
The invention discloses a double-spraying double-shaft oblique cement-soil stirring and profile steel inserting integrated construction method and equipment, wherein the integrated equipment comprises the following components: the device comprises a drilling tool assembly, a vertical frame assembly, a support rod assembly, an oil pump motor assembly, an oil tank assembly, a pressurizing assembly and a turntable assembly, wherein the double-spraying double-shaft inclined cement soil stirring and profile steel inserting integrated equipment is arranged; the slide way on the guide frame is square; the span of the front support oil cylinder is enlarged; the drill rod in the middle of the double-shaft stirring pile realizes double stirring of gas and slurry; the insertion function of the section steel along the mixing pile is realized, and the section steel can be inserted vertically or obliquely. The double-spraying double-shaft oblique cement soil stirring and profile steel inserting integrated equipment can complete the work of drilling, grouting and stirring, immediately hoisting profile steel and accurately inserting the profile steel into a cement soil pile.
Description
Technical Field
The invention relates to the technical field of civil engineering construction, in particular to a double-spraying double-shaft oblique cement soil stirring and profile steel inserting integrated construction method and equipment.
Background
The SMW construction method is also called a stiff cement mixing pile method, namely H-shaped steel and the like (mostly shaped steel, Larsen steel sheet piles, steel pipes and the like are inserted into a cement pile to combine the bearing load with the seepage prevention and water retaining, so that the enclosure wall with a supporting structure with the functions of bearing force and seepage prevention is formed.
The SMW construction method is characterized in that a stiff composite enclosure structure is adopted, a special ultra-high power and ultra-high torque stirring pile machine drilling machine is used for cutting soil in an original stratum, meanwhile, a cement paste reinforcer is injected into the soil at high pressure from the front end of a drill bit and is fully and powerfully stirred with the cut soil, and overlapping construction is adopted among construction units to form a cement soil column vertical underground continuous water-stop wall body with high water-resisting property; before the cement soil slurry is not hardened, profile steel (usually H steel, I steel or other stiffening materials) is inserted as a stress reinforcing material until the cement is completely hardened, so that a continuous and complete underground water-stopping and soil-retaining wall body with certain strength and rigidity is formed.
The most common equipment for construction at present has the defects that the construction of a vertical pile can only be realized, the construction of a cement mixing pile with a certain angle cannot be realized, the stirring and profile steel insertion integrated function is not realized, and different equipment is required for respectively stirring soil and inserting profile steel.
disclosure of Invention
In order to solve the problems, the invention provides a double-spraying double-shaft oblique cement-soil stirring and profile steel inserting integrated construction method and equipment. This two biax slant soil cement stirring of spouting and insert integrative equipment of shaped steel integrate drilling, slip casting and the stirring process of various angles and to inserting the process integration of shaped steel accurately in the stake on an equipment, realize the construction of the shaped steel soil cement stirring wall of multi-angle.
The technical scheme adopted by the invention for realizing the purpose is as follows:
The invention provides a double-spraying double-shaft oblique cement soil stirring and profile steel inserting integrated device which comprises an underframe and a hoisting system, wherein the underframe comprises an upper underframe and a lower underframe, the lower underframe is erected on support legs, a profile steel alignment sliding system is arranged between the upper underframe and the lower underframe, and a vertical frame assembly, an oil pump motor assembly, an oil tank assembly, a pressurizing assembly and a turntable assembly are arranged on the upper underframe; the hoisting system comprises a winch, a bidirectional stress application winch and a top beam assembly which are arranged on the upper underframe; an inclined strut is hinged between the upper part of the vertical frame assembly and the upper underframe, and the lower part of the inclined strut is provided with a mechanical telescopic device for adjusting the angle between the tower frame and the underframe of the vertical frame assembly; the vertical frame assembly is provided with a power head, a one-way clutch, a lower section steel upper frame and a guide frame, the power head is connected with a pressurizing assembly and a turntable assembly, the power head is connected with a double-shaft drilling tool assembly, and the double-shaft drilling tool assembly comprises a drill bit and a double-shaft drilling rod; the guide frame is arranged in the middle of the front part of the vertical frame assembly; a pile feeder penetrates through the lower section steel upper frame and the guide frame; the section steel contraposition sliding system comprises relative sliding planes arranged on the upper underframe and the lower underframe, a hydraulic driving and contraposition device arranged between the upper underframe and the lower underframe, a guide frame arranged in the middle of the front part of the vertical frame assembly and a lower section steel upper frame arranged on the vertical frame assembly; the section steel alignment system realizes the positioning and stabilizing effects of the section steel, and after the double-spraying double-shaft oblique cement-soil stirring and section steel inserting integrated equipment completes drilling, grouting and stirring, the section steel is lifted immediately and is accurately inserted into the cement-soil stirring pile.
Further, according to the double-spraying double-shaft oblique cement-soil stirring and profile steel inserting integrated equipment, one end of the vertical frame assembly is rotatably connected with the upper base, the other end of the vertical frame assembly is a free end, and the angle between the tower frame and the underframe of the vertical frame assembly is adjusted through mechanical telescopic equipment so as to realize pitching and pitching of the cement-soil stirring pile.
the guide frame is provided with a slide way, and the cross section of the slide way is square so as to prevent the section steel from separating from the slide way.
The chassis is provided with a chassis level gauge, and the tower of the vertical frame assembly is provided with an angle compass for assisting in controlling the pitch and yaw angles of the equipment.
Meanwhile, the invention also provides a method for carrying out double-spraying double-shaft oblique cement soil stirring and inserting profile steel integrated construction by using the integrated equipment; the method comprises the following steps:
The equipment is put in place at the position where the pile is to be driven, the support legs are supported, the dual-spraying dual-shaft oblique cement soil stirring and profile steel inserting integrated equipment is started, a winch in a hoisting system is started, the length of an oblique brace is adjusted by adjusting a mechanical telescopic device, and therefore the angle of the vertical frame assembly is adjusted to meet the angle of driving in a downward direction or in a upward direction; the power head on the pressurizing assembly and the turntable assembly drives the drill rod and the drill bit on the drilling tool assembly to cut soil downwards; during drilling, cement slurry is stirred with cut soil through a drill bit to form a cement soil pile, and in the process, the lower section steel upper frame is connected with the power head through the one-way clutch and moves synchronously; starting a bidirectional stress application winch, loosening a one-way clutch at the same time, hoisting profile steel to the upper part of a guide frame in a profile steel alignment sliding system through a steel wire rope and a lifting hook in a hoisting system and inserting the profile steel into the guide frame, fixing the upper part of the profile steel in a lower profile steel upper frame, moving an upper base frame by moving the profile steel alignment sliding system between the upper base frame and a lower base frame until a profile steel positioning sliding chute is positioned above the central part of a cement pile, and adjusting mechanical telescopic equipment to realize the angle of the profile steel to be the same as that of the cement pile; sinking the section steel to enable the section steel to be slowly inserted into the cement soil pile, if resistance is met, starting the vibrator, sinking the section steel to the upper frame of the guide frame and the lower section steel to enable the section steel to be inserted to a required position when the section steel is contacted, loosening the lifting hook, resetting the pile driver to a pile driving position, and completing construction of one pile.
Furthermore, in the integrated construction process of the double-spraying double-shaft oblique cement soil stirring and profile steel inserting, the gas is blown into the drill rod, and the stirring quality is improved under the combined action of the gas and the slurry.
and the profile steel is inserted into the cement-soil mixing pile in a vertical direction and an oblique direction.
compared with the prior art, the invention has the beneficial effects that:
compared with the traditional mixing pile machine and other equipment, the angle of the cement mixing pile can be adjusted, so that the stress of the cement mixing pile is more reasonable; and the drill rod in the middle of the double-shaft stirring pile realizes air blowing, and the stirring quality is improved by double stirring of gas and slurry. The invention has the advantages of flexibility, maneuverability, low cost, good effect, simple working procedure and good quality when constructing the SMW wall, short working procedure conversion time and high working efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of a double-spraying double-shaft slant soil cement mixing and profile steel inserting integrated device according to the present invention;
Fig. 2 is a detail view of a portion of fig. 1.
In the figure:
1-an upper underframe, 2-a lower underframe, 3-a hoisting system, 4-a section steel alignment sliding system, 5-a drilling tool assembly, 6-a vertical frame assembly, 7-a diagonal brace, 8-a supporting leg, 9-a winch, 10-a guide frame, 11-a lower section steel upper frame, 12-a power head, 13-a mechanical telescopic device, 14-a pile feeder, 15-a one-way clutch and 16-a two-way stress application winch.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, which are not intended to limit the invention in any way.
As shown in fig. 1 and 2, the double-jet double-shaft oblique cement soil stirring and profile steel inserting integrated equipment provided by the invention comprises an underframe and a hoisting system 3, wherein the underframe comprises an upper underframe 1 and a lower underframe 2, the lower underframe 2 is erected on support legs 8, a profile steel contraposition sliding system 4 is arranged between the upper underframe 1 and the lower underframe 2, and the upper underframe 1 is provided with a vertical frame assembly 6, an oil pump motor assembly, an oil tank assembly, a pressurizing assembly and a turntable assembly.
the hoisting system 3 comprises a winch 9, a bidirectional stress application winch 16 and a top beam assembly which are arranged on the upper underframe 1.
An inclined strut 7 is hinged between the upper part of the vertical frame assembly 6 and the upper underframe 1, and the lower part of the inclined strut 7 is provided with a mechanical telescopic device 13 for adjusting the angle between a tower frame and an underframe of the vertical frame assembly 6; one end of the vertical frame assembly 6 is rotatably connected with the upper base 1, the other end of the vertical frame assembly 6 is a free end, the angle between the tower frame and the bottom frame of the vertical frame assembly 6 is adjusted through the mechanical telescopic equipment 13, if multi-angle support is needed, the small telescopic oil cylinder can be additionally arranged in the mechanical telescopic equipment 13, and pitching of the cement soil mixing pile are achieved. In the invention, a chassis level gauge is arranged on the underframe, and an angle compass is arranged on the tower frame of the vertical frame assembly 6 to help accurately control the pitch and pitch angles.
as shown in fig. 2, a power head 12, a one-way clutch 15, a lower section steel upper frame 11 and a guide frame 10 are arranged on the stand assembly 6, the power head 12 is connected with a pressurizing assembly and a turntable assembly, the power head 12 is connected with a double-shaft drilling tool assembly 5, and the double-shaft drilling tool assembly 5 comprises a drill bit and a double-shaft drill rod; the guide frame 10 is arranged in the middle of the front part of the vertical frame assembly 6; a pile feeder 14 is arranged through the lower section steel upper frame 11 and the guide frame 10; the guide frame 10 is provided with a slide way, a circular slide way is generally adopted, but in order to prevent inclined section steel or piles from separating from the slide way, the cross section of the slide way involved in the invention is square.
The section steel contraposition sliding system 4 comprises a relative sliding plane arranged on the upper base frame 1 and the lower base frame 2, a hydraulic driving and contraposition device arranged between the upper base frame 1 and the lower base frame 2, a guide frame 10 arranged at the middle position of the front part of the vertical frame assembly 6 and a lower section steel upper frame 11 arranged on the vertical frame assembly 6. The section steel alignment system realizes the positioning and stabilizing effects of the section steel, and after the double-spraying double-shaft oblique cement-soil stirring and section steel inserting integrated equipment completes drilling, grouting and stirring, the section steel is lifted immediately and is accurately inserted into the cement-soil stirring pile.
in the invention, the insertion function of the section steel or the precast pile along the cement mixing pile is realized through the section steel contraposition sliding system 4 and the inclined strut telescopic oil cylinder 7, and the section steel or the precast pile can be inserted vertically or obliquely.
The construction process of the double-spraying double-shaft oblique cement soil stirring and profile steel inserting integrated equipment comprises the following steps:
The equipment is put in place at the position where the pile is to be drilled, the upper supporting leg 8 is supported, the double-jet double-shaft oblique cement soil stirring and profile steel inserting integrated equipment is started, the winch 9 in the hoisting system 3 is started, the length of the inclined strut 7 is adjusted by adjusting the mechanical telescopic equipment 13, and therefore the angle of the stand assembly 6 is adjusted to meet the angle of drilling or pitching.
The power head 12 on the pressurizing assembly and the turntable assembly drives the drill rod and the drill bit on the drilling tool assembly 5 to cut soil downwards; during drilling, cement slurry is mixed with cut soil through a drill bit to form a cement soil pile, and in the process, the lower section steel upper frame 11 and the power head 12 are connected through the one-way clutch 15 and move synchronously.
The two-way stress application winch 16 is started, the one-way clutch 15 is loosened, the steel wire rope and the lifting hook in the hoisting system 3 hoist the profile steel to the upper portion of the guide frame 10 in the profile steel alignment sliding system and insert the profile steel into the guide frame 10, the upper portion of the profile steel is fixed in the lower profile steel upper frame 11, the upper chassis 1 is moved by moving the profile steel alignment sliding system 4 between the upper chassis 1 and the lower chassis 2 until the profile steel positioning sliding groove is located above the central portion of the cement pile, and the mechanical telescopic device 13 is adjusted to achieve the effect that the angle of the profile steel is the same as that of the cement pile.
Sinking the section steel to enable the section steel to be slowly inserted into the cement soil pile, if resistance is met, starting a vibrator, sinking the section steel to a guide frame 10 to be in contact with an upper section steel frame 11, replacing a pile feeder 14 to enable the section steel to be inserted to a required position, loosening a lifting hook, and resetting the pile driver to a pile driving position, so that construction of one pile is completed.
in the construction process, the drill rod in the middle of the double-shaft stirring pile in the drilling tool assembly 5 realizes air blowing, and the stirring quality can be improved by double stirring of gas and slurry.
In the device of the invention, the supporting feet 8 comprise a plurality of supporting feet which are generally respectively distributed at the front end and the rear end of the bottom of the underframe and are used for supporting the device; in order to facilitate the upward swing, the distance between the two support legs at the front can be increased, i.e. the cylinder span is increased to 1.5 m.
Although the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and other double-spraying biaxial slant soil cement stirring and inserted section steel integrated equipment using the same or similar apparatus as the above embodiments of the present invention is within the scope of the present invention.
Claims (8)
1. A double-spraying double-shaft oblique cement soil stirring and profile steel inserting integrated device is characterized by comprising an underframe and a lifting system (3), wherein the underframe comprises an upper underframe (1) and a lower underframe (2), the lower underframe (2) is erected on support legs (8), a profile steel alignment sliding system (4) is arranged between the upper underframe (1) and the lower underframe (2), and a vertical frame assembly (6), an oil pump motor assembly, an oil tank assembly, a pressurizing assembly and a turntable assembly are arranged on the upper underframe (1);
The hoisting system (3) comprises a winch (9) arranged on the upper underframe (1), a bidirectional stress application winch (16) and a top beam assembly;
an inclined strut (7) is hinged between the upper part of the vertical frame assembly (6) and the upper underframe (1), and the lower part of the inclined strut (7) is provided with a mechanical telescopic device (13) for adjusting the angle between a tower frame and the underframe of the vertical frame assembly (6);
The vertical frame assembly (6) is provided with a power head (12), a one-way clutch (15), a lower section steel upper frame (11) and a guide frame (10), the power head (12) is connected with a pressurizing assembly and a turntable assembly, the power head (12) is connected with a double-shaft drilling tool assembly (5), and the double-shaft drilling tool assembly (5) comprises a drill bit and a double-shaft drill rod; the guide frame (10) is arranged in the middle of the front part of the vertical frame assembly (6); a pile feeder (14) is arranged through the lower section steel upper frame (11) and the guide frame (10);
The section steel contraposition sliding system (4) comprises a relative sliding plane arranged on the upper underframe (1) and the lower underframe (2), a hydraulic driving and contraposition device arranged between the upper underframe (1) and the lower underframe (2), a guide frame (10) arranged at the middle position of the front part of the vertical frame assembly (6) and a lower section steel upper frame (11) arranged on the vertical frame assembly (6);
The section steel alignment system realizes the positioning and stabilizing effects of the section steel, and after the double-spraying double-shaft oblique cement-soil stirring and section steel inserting integrated equipment completes drilling, grouting and stirring, the section steel is lifted immediately and is accurately inserted into the cement-soil stirring pile.
2. The dual-spraying dual-shaft oblique cement-soil stirring and profile-steel inserting integrated equipment as claimed in claim 1, wherein one end of the stand assembly (6) is rotatably connected with the upper base (1), the other end of the stand assembly (6) is a free end, and an angle between a tower frame and an underframe of the stand assembly (6) is adjusted through a mechanical telescopic device (13) so as to realize pitching and pitching of the cement-soil stirring pile.
3. The dual-spraying dual-shaft oblique cement soil stirring and profile steel inserting integrated equipment as claimed in claim 1, wherein a slide way is arranged on the guide frame (10), and the cross section of the slide way is square to prevent profile steel from being separated from the slide way.
4. The dual-spraying dual-shaft oblique cement-soil stirring and profile-steel inserting integrated equipment as claimed in claim 1, wherein a chassis level is arranged on the chassis, and an angle compass is arranged on a tower frame of the stand assembly (6) to assist in controlling the pitching and pitching angles of the equipment.
5. The dual-spraying dual-shaft oblique cement soil stirring and profile steel inserting integrated equipment as claimed in claim 1, wherein the support legs (8) comprise a plurality of support legs respectively distributed at the front end and the rear end of the bottom of the underframe for supporting the equipment; the distance between the legs at the front is 1.5 m.
6. A double-spraying double-shaft oblique cement soil stirring and profile steel inserting integrated construction method is characterized by comprising the following steps:
The device is put in place at the position where the pile is to be driven, supporting the support legs (8), starting the double-jet double-shaft oblique cement soil stirring and profile steel inserting integrated device, starting a winch (9) in the hoisting system (3), and adjusting the length of the inclined strut (7) by adjusting a mechanical telescopic device (13), so that the angle of the vertical frame assembly (6) is adjusted to meet the angle of driving downwards or driving upwards;
The power head (12) on the pressurizing assembly and the turntable assembly drives the drill rod and the drill bit on the drilling tool assembly (5) to cut soil downwards; during drilling, cement slurry is stirred with cut soil through a drill bit to form a cement soil pile, and in the process, the lower section steel upper frame (11) is connected with the power head (12) through the one-way clutch (15) and moves synchronously;
Starting a two-way stress application winch (16), loosening a one-way clutch (15), hoisting the section steel to the upper part of a guide frame (10) in a section steel alignment sliding system through a steel wire rope and a lifting hook in a hoisting system (3) and inserting the section steel into the guide frame (10), fixing the upper part of the section steel in a lower section steel upper frame (11), moving the upper base frame (1) through moving a section steel alignment sliding system (4) between the upper base frame (1) and the lower base frame (2) until a section steel positioning sliding chute is positioned above the central part of a cement pile, and adjusting a mechanical telescopic device (13) to realize the angle of the section steel to be the same as that of the cement pile;
Sinking the section steel to enable the section steel to be slowly inserted into the cement soil pile, if resistance is met, starting a vibrator, sinking the section steel to a guide frame (10) and a lower section steel upper frame (11) to be contacted, replacing a pile feeder (14) to enable the section steel to be inserted to a required position, loosening a lifting hook, and resetting the pile driver to a pile driving position to complete the construction of one pile.
7. the integrated construction method for stirring cement soil with double spraying and double shafts and inserting section steel according to claim 6, wherein in the construction process, air is blown into a drill rod, and the stirring quality is improved under the combined action of air and slurry.
8. The integrated construction method of double-spraying biaxial slant soil-cement mixing and inserting section steel according to claim 6, wherein the insertion of the section steel along the soil-cement mixing pile comprises vertical insertion and slant insertion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910820645.2A CN110552346A (en) | 2019-08-29 | 2019-08-29 | Double-spraying double-shaft oblique cement-soil stirring and profile steel inserting integrated construction method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910820645.2A CN110552346A (en) | 2019-08-29 | 2019-08-29 | Double-spraying double-shaft oblique cement-soil stirring and profile steel inserting integrated construction method and equipment |
Publications (1)
| Publication Number | Publication Date |
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| CN110552346A true CN110552346A (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910820645.2A Pending CN110552346A (en) | 2019-08-29 | 2019-08-29 | Double-spraying double-shaft oblique cement-soil stirring and profile steel inserting integrated construction method and equipment |
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| CN (1) | CN110552346A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114525785A (en) * | 2021-11-29 | 2022-05-24 | 浙江省建筑设计研究院 | Angle-adjustable section steel static pressure device |
| CN114808948A (en) * | 2022-04-26 | 2022-07-29 | 浙江省三建建设集团有限公司 | Five-axis cement mixing pile H-shaped steel positioning device and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114525785A (en) * | 2021-11-29 | 2022-05-24 | 浙江省建筑设计研究院 | Angle-adjustable section steel static pressure device |
| CN114808948A (en) * | 2022-04-26 | 2022-07-29 | 浙江省三建建设集团有限公司 | Five-axis cement mixing pile H-shaped steel positioning device and construction method |
| CN114808948B (en) * | 2022-04-26 | 2024-02-20 | 浙江省三建建设集团有限公司 | Five-axis cement mixing pile H-shaped steel positioning device and construction method |
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