CN113832958A - Anti-slide pile construction method with mechanical cooperation with manual excavation - Google Patents
Anti-slide pile construction method with mechanical cooperation with manual excavation Download PDFInfo
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- CN113832958A CN113832958A CN202111050584.XA CN202111050584A CN113832958A CN 113832958 A CN113832958 A CN 113832958A CN 202111050584 A CN202111050584 A CN 202111050584A CN 113832958 A CN113832958 A CN 113832958A
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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Abstract
The invention provides a construction method of an anti-slide pile by mechanical cooperation with manual excavation, which comprises the following steps: after the ground is leveled, paying off and positioning rectangular pile holes, determining the excavation side line of the foundation pit, and manually excavating the foundation pit; constructing a locking notch; manually digging a hole to be fine and flat; the method comprises the following steps of determining the diameter of a rotary drilling bit according to the size of a rectangular pile, installing a drilling machine in place, and excavating a rotary drilling bit to match with manual pile hole excavation, wherein the pile hole excavation comprises the steps of: drilling holes in the four corner supports close to the rectangular-section pile retaining wall by using a rotary drilling rig, and excavating a center hole: overexcavating the geometric center of the peripheral holes to form a central hole, manually modifying, backfilling and supporting a mold: manually chiseling residual soil and stone which are not excavated in the peripheral holes, backfilling the residual soil and stone into the central hole, leveling to each designed depth, roughly leveling the ground, then erecting a retaining wall template and carrying out the next procedure of construction; pouring a retaining wall; hoisting a reinforcement cage; and (5) pouring concrete. The invention adopts mechanical cooperation and manual construction, and has the advantages of high hole forming speed, high construction efficiency, simple operation, low safety risk and the like.
Description
Technical Field
The invention belongs to the technical field of rectangular slide-resistant pile construction, and particularly relates to a slide-resistant pile construction method through mechanical cooperation and manual excavation.
Background
In the construction process of the slide-resistant pile in the landslide section, a common excavation mode is manual hole digging or mechanical excavation, and the manual hole digging is suitable for clay and silty clay with better geological conditions or clay containing a small amount of sand gravel. Both the circular-section piles and the rectangular-section slide-resistant piles are suitable, but the safety risk is high and the efficiency is low. The rotary drilling hole is suitable for various stratums including rock layers, is suitable for a round section pile, and is relatively low in efficiency if matched with manual or mechanical hole expansion if used for a rectangular section slide-resistant pile.
Disclosure of Invention
The invention provides a slide-resistant pile construction method by mechanical cooperation with manual excavation, which solves the problem of low effect of a rectangular section pile.
The technical scheme of the invention is as follows: a construction method of an anti-slide pile by mechanical cooperation with manual excavation comprises the following steps:
1) after the ground is leveled, according to the set axis control points and the measured elevation level points, the piles are numbered one by one according to the pile position diagram, the pile positions are released according to the concrete positions corresponding to the pile foundation, the center of the pile position and the positions of the four corners of the pile are determined, lime lines are scattered to serve as the excavation boundary lines of the pile holes, and after the pile positions are positioned, the pile holes are excavated manually;
2) according to the center position of a lofting pile body, the inner diameter position of a lock opening is set out, C30 reinforced concrete is poured into the lock opening, the top surface of the lock opening is 30cm higher than the ground, concrete is hardened within 1m of the periphery of the lock opening, the thickness of the concrete is 10cm, a cross pile is buried while the lock opening is poured, a steel bar with a ground flat opening is adopted for the pile, the type of the steel bar adopts a steel bar with the diameter of phi 25, paint with red and white is brushed on the periphery of the lock opening, safety protective guards are arranged on the periphery of the lock opening, a winch foundation support is cast in place by C30 concrete, the thickness of the support is 150mm, a phi 10@150 x 150 steel bar net piece is arranged inside, the size and the position of the support are determined according to the actual situation on site, and the support and the lock opening are poured at the same time for construction;
3) manually using a pick, a spade and an air pick to finely level the bottom of the hole;
4) determining the diameter of a rotary drilling bit according to the size of the rectangular pile, wherein the diameter of the drill bit is preferably not less than 1/2 of the short side of the slide-resistant pile, installing a drilling machine in place, and excavating a pile hole by matching the rotary drilling bit with manpower;
dig soon and bore the manual work of cooperation and carry out stake hole excavation and include:
A) excavating peripheral holes: using rotary drilling rig to drill near rectangleDrilling holes in the four corner supports of the protective wall of the cross-section pile to reach the designed depth h of each section1Stopping excavating to form four peripheral holes;
B) excavating a center hole: the method comprises the following steps of over-digging at the geometric centers of peripheral holes to form central holes, wherein the central holes are used for providing working faces for over-digging, placing un-dug soil bodies on the periphery of a protective wall to optimize the digging process and reduce secondary digging, and the volume of the central holes can meet the requirement that the periphery of the peripheral holes are completely accommodated by the excavated soil bodies;
C) artificially modifying, backfilling and supporting a mold: manually chiseling residual soil and stone which are not excavated in the peripheral holes, backfilling the residual soil and stone into the central hole, leveling to each designed depth, roughly leveling the ground, then erecting a retaining wall template and carrying out the next procedure of construction;
5) pouring a retaining wall;
6) hoisting a reinforcement cage;
7) and (5) pouring concrete.
Further, the depth h of the central hole2Calculated according to the following formula:
furthermore, the excavation positions of the peripheral holes are 5cm away from four corners of the guard wall of the rectangular-section pile.
Furthermore, the peripheral holes are overlapped at the center, the overlapped point is the center of the central hole, a soil pile is not required to be formed, and after the construction of the four peripheral holes is completed, rough flattening is carried out on the field to prepare for the construction of the central hole excavation.
Furthermore, in the manual modification backfilling and formwork erecting, earth and stone near the retaining wall are manually excavated by adopting a shovel matched with a pneumatic pick earth or a water-milled diamond and backfilled to the central hole.
Furthermore, the peripheral holes can be excavated from the backer side to the line side in sequence in the clockwise direction during excavation.
The invention has the advantages that: the construction method for the slide-resistant pile by adopting machinery to cooperate with manual work solves the problems that the efficiency of crushing and rock entering of the manual hole digging pile is low, blasting and excavation are not allowed under the complex environment, and the hole forming construction difficulty is very high, and simultaneously solves the problem that the efficacy is relatively low when the rotary drilling hole forming is used for the slide-resistant pile with the rectangular cross section.
Drawings
FIG. 1 is an excavation schematic diagram of the anti-slide pile construction method of the invention with mechanical cooperation and manual excavation;
FIG. 2 is a schematic diagram of excavation depth of the slide-resistant pile construction method with mechanical cooperation and manual excavation of the invention;
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
The specific implementation mode of the invention is as follows: a construction method of an anti-slide pile by mechanical cooperation with manual excavation comprises the following steps:
1) after the ground is leveled, according to the set axis control points and the measured elevation level points, the piles are numbered one by one according to the pile position diagram, the pile positions are released according to the concrete positions corresponding to the pile foundation, the center of the pile position and the positions of the four corners of the pile are determined, lime lines are scattered to serve as the excavation boundary lines of the pile holes, and after the pile positions are positioned, the pile holes are excavated manually;
2) according to the center position of a lofting pile body, the inner diameter position of a lock opening is set out, C30 reinforced concrete is poured into the lock opening, the top surface of the lock opening is 30cm higher than the ground, concrete is hardened within 1m of the periphery of the lock opening, the thickness of the concrete is 10cm, a cross pile is buried while the lock opening is poured, a steel bar with a ground flat opening is adopted for the pile, the type of the steel bar adopts a steel bar with the diameter of phi 25, paint with red and white is brushed on the periphery of the lock opening, safety protective guards are arranged on the periphery of the lock opening, a winch foundation support is cast in place by C30 concrete, the thickness of the support is 150mm, a phi 10@150 x 150 steel bar net piece is arranged inside, the size and the position of the support are determined according to the actual situation on site, and the support and the lock opening are poured at the same time for construction;
3) manually using a pick, a spade and an air pick to finely level the bottom of the hole;
4) determining the diameter of a rotary drilling bit according to the size of the rectangular pile, wherein the diameter of the drill bit is preferably not less than 1/2 of the short side of the slide-resistant pile, installing a drilling machine in place, and excavating a pile hole by matching the rotary drilling bit with manpower;
as shown in fig. 1-2, the excavating and drilling of the pile hole in cooperation with manual work comprises:
A) excavating peripheral holes: drilling holes in the four corner supports close to the retaining wall of the rectangular-section pile by using a rotary drill, and stopping excavation when the hole is drilled to each designed depth h1 to form four peripheral holes;
B) excavating a center hole: the method comprises the following steps of over-digging at the geometric centers of peripheral holes to form central holes, wherein the central holes are used for providing working faces for over-digging, placing un-dug soil bodies on the periphery of a protective wall to optimize the digging process and reduce secondary digging, and the volume of the central holes can meet the requirement that the periphery of the peripheral holes are completely accommodated by the excavated soil bodies;
C) artificially modifying, backfilling and supporting a mold: manually chiseling residual soil and stone which are not excavated in the peripheral holes, backfilling the residual soil and stone into the central hole, leveling to each designed depth, roughly leveling the ground, then erecting a retaining wall template and carrying out the next procedure of construction;
5) pouring a retaining wall;
6) hoisting a reinforcement cage;
7) and (5) pouring concrete.
Further, the depth h of the central hole2Calculated according to the following formula:
furthermore, the excavation positions of the peripheral holes are 5cm away from four corners of the guard wall of the rectangular-section pile.
Furthermore, the peripheral holes are overlapped at the center, the overlapped point is the center of the central hole, a soil pile is not required to be formed, and after the construction of the four peripheral holes is completed, rough flattening is carried out on the field to prepare for the construction of the central hole excavation.
Furthermore, in the manual modification backfilling and formwork erecting, earth and stone near the retaining wall are manually excavated by adopting a shovel matched with a pneumatic pick earth or a water-milled diamond and backfilled to the central hole.
Further, the peripheral holes may be excavated sequentially from the backer side to the line side in a clockwise direction, as shown in fig. 1.
While the preferred embodiments of the invention have been described, it is to be understood that the invention is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made without departing from the technical scope of the present invention, and still fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. The construction method of the slide-resistant pile by mechanical cooperation with manual excavation is characterized by comprising the following steps of:
1) after the ground flattening, carry out rectangle stake hole unwrapping wire location, confirm the foundation ditch excavation sideline, the manual work carries out the foundation ditch excavation: after the ground is leveled, according to the set axis control points and the measured elevation level points, the piles are numbered one by one according to the pile position diagram, the pile positions are released according to the concrete positions corresponding to the pile foundation, the center of the pile position and the positions of the four corners of the pile are determined, lime lines are scattered to serve as the excavation boundary lines of the pile holes, and after the pile positions are positioned, the pile holes are excavated manually;
2) constructing a locking notch and a winch support;
3) manually using a pick, a spade and an air pick to finely level the bottom of the hole;
4) determining the diameter of a rotary drilling bit according to the size of the rectangular pile, installing a drilling machine in place, and excavating pile holes by matching the rotary drilling bit with manpower;
5) pouring a retaining wall;
6) hoisting a reinforcement cage;
7) and (5) pouring concrete.
2. The method for constructing the slide-resistant pile by mechanical cooperation of manual excavation according to claim 1, wherein the concrete manner in the step 2 is as follows: according to the center position of a lofting pile body, the inner diameter position of a lock opening is set out, C30 reinforced concrete is poured into the lock opening, the top surface of the lock opening is 30cm higher than the ground, concrete is hardened within 1m of the periphery of the lock opening, the thickness of the concrete is 10cm, a cross pile is buried while the lock opening is poured, a steel bar with a ground flat opening is adopted as the pile protector, the type of the steel bar is phi 25, paint with red and white intervals is brushed on the periphery of the lock opening, safety protective guards are arranged on the periphery of the lock opening, a winch foundation support is cast in place by C30 concrete, the thickness of the support is 150mm, a phi 10@150 x 150 steel bar mesh is arranged inside the support, the size and the position of the support are determined according to the actual situation on site, and the support and the lock opening are poured simultaneously.
3. The slide-resistant pile construction method based on mechanical cooperation with manual excavation according to claim 2, wherein the rotary drilling and manual cooperation with pile hole excavation comprises the following steps:
A) excavating peripheral holes: drilling holes in the four corner supports close to the protecting wall of the rectangular-section pile by using a rotary drilling rig to reach the designed depth h of each section1Stopping excavating to form four peripheral holes;
B) excavating a center hole: the method comprises the following steps of over-digging at the geometric centers of peripheral holes to form central holes, wherein the central holes are used for providing working faces for over-digging, placing un-dug soil bodies on the periphery of a protective wall to optimize the digging process and reduce secondary digging, and the volume of the central holes can meet the requirement that the periphery of the peripheral holes are completely accommodated by the excavated soil bodies;
C) artificially modifying, backfilling and supporting a mold: and (4) manually chiseling residual soil and stone which are not excavated in the peripheral holes, backfilling the residual soil and stone into the central hole, leveling to each designed depth, roughly leveling the ground, then erecting a retaining wall template, and carrying out the next procedure of construction.
4. The method of constructing a slide pile by mechanical cooperation of manual excavation according to claim 3, wherein the depth h of the central hole2Calculated according to the following formula:
5. the method for constructing the slide-resistant pile by mechanical cooperation of manual excavation according to claim 4, wherein the excavation position of the peripheral holes is 5cm away from four corners of the rectangular-section pile retaining wall.
6. The method of claim 5, wherein the peripheral holes are overlapped at a central position, the overlapping point is the center of the central hole, soil should not be piled, and after the construction of the four peripheral holes is completed, the site is roughly leveled to prepare for the central hole excavation.
7. The method for constructing a slide-resistant pile by mechanical cooperation of manual excavation according to claim 6, wherein the manual modification, backfilling and formwork supporting are performed by manually excavating and backfilling earth and stone near the retaining wall to a central hole by using a spade in cooperation with a pick earth or by using a water-milled diamond.
8. The method for constructing a slide-resistant pile by mechanical cooperation of manual excavation according to claim 7, wherein the peripheral holes are excavated sequentially from the backer side to the line side in a clockwise direction.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114351694A (en) * | 2022-01-17 | 2022-04-15 | 中国五冶集团有限公司 | Foundation pile foundation pore-forming construction method |
| CN115354673A (en) * | 2022-08-19 | 2022-11-18 | 四川省公路规划勘察设计研究院有限公司 | Hole forming method for anti-slide pile in red bed soft rock area and hoisting type manual auxiliary device |
| CN115492095A (en) * | 2022-10-11 | 2022-12-20 | 攀钢集团工程技术有限公司 | Method for quickly forming hole in retaining wall type rectangular slide-resistant pile |
| CN116005693A (en) * | 2023-01-04 | 2023-04-25 | 北京住总集团有限责任公司 | Rock area combined type hole digging anti-slide pile structure and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116005693A (en) * | 2023-01-04 | 2023-04-25 | 北京住总集团有限责任公司 | Rock area combined type hole digging anti-slide pile structure and construction method thereof |
| CN116005693B (en) * | 2023-01-04 | 2023-08-25 | 北京住总集团有限责任公司 | Rock area combined type hole digging anti-slide pile structure and construction method thereof |
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