CN113482013A - Manual hole digging construction method for cast-in-place pile - Google Patents
Manual hole digging construction method for cast-in-place pile Download PDFInfo
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- CN113482013A CN113482013A CN202110785081.0A CN202110785081A CN113482013A CN 113482013 A CN113482013 A CN 113482013A CN 202110785081 A CN202110785081 A CN 202110785081A CN 113482013 A CN113482013 A CN 113482013A
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- hole
- cast
- core
- place pile
- rock mass
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 239000011435 rock Substances 0.000 claims abstract description 34
- 238000005553 drilling Methods 0.000 claims abstract description 25
- 238000009412 basement excavation Methods 0.000 claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005422 blasting Methods 0.000 description 5
- 238000009527 percussion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Classifications
-
- 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
- E02D17/06—Foundation trenches ditches or narrow shafts
-
- 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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A construction method for manually digging a hole in a cast-in-place pile adopts mechanical or manual cleaning and leveling of a field around an orifice of a cast-in-place pile hole; excavating the hole opening part of the cast-in-place pile hole to a rock surface, and then pouring concrete with a certain height along the periphery of the hole opening; drilling a core around a bored concrete pile hole; excavating a central rock mass; after the central rock mass is lifted out, cleaning the hole wall and the residual rock mass at the hole bottom, and finishing the excavation of the cost layer; and (5) excavating the next layer until the designed depth is reached, and finishing the whole hole excavating construction of the cast-in-place pile hole. The invention has the advantages of simple process, low cost, strong adaptability and high construction efficiency.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering, and particularly relates to a manual hole digging construction method for a cast-in-place pile.
Background
Generally, rock foundation cast-in-place piles adopt percussion drilling to dig holes, but some cast-in-place piles are far away in design position, such as on a hillside, limited by terrain conditions, and difficult to reach construction parts by percussion drilling equipment, and some cast-in-place piles are less in design engineering quantity, and construction units are unwilling to invest large-scale equipment; and in addition, some rock foundation cast-in-place piles can be excavated by manual blasting, but the blasting procedure is complicated, and blasting materials are controlled and cannot be carried out. The method is unconditional to the failure of expansion construction of impact drilling equipment and manual blasting hole digging.
Disclosure of Invention
The invention aims to overcome the defects of the existing cast-in-place pile construction method and provide the cast-in-place pile manual hole digging construction method which is simple in process, low in cost, strong in adaptability and high in construction efficiency.
The technical scheme for solving the technical problems is as follows: a construction method for manually digging a hole in a cast-in-place pile comprises the following steps:
s1, leveling a field
Mechanically or manually cleaning and flattening the field around the hole opening of the cast-in-place pile;
s2. concrete fore shaft
Excavating the hole opening part of the cast-in-place pile hole to a rock surface, and then pouring concrete with a certain height along the periphery of the hole opening;
s3, drilling and taking the rock core around the dug pile
Sequentially drilling core cores around a bored pile hole by using a water mill drilling machine, designing a boundary line to be externally placed for 5cm to drill, wherein the drilling depth is 65-75 cm each time, the diameter of the core is 15cm, the core is outwards inclined by 3 degrees or 4 degrees during drilling, the first peripheral hole is drilled to the required depth, then the drill is lifted and stopped, then the core is manually pried off, the core is lifted out of the hole by using a special clamp, the core is loaded into an iron bucket to be lifted and transported outwards, and after the first core is taken out, all the core cores around are sequentially drilled and transported outwards by a circulating drilling process;
s4. excavating central rock mass
After all the rock cores at the periphery are drilled and transported outside, the central rock mass is broken manually by adopting a steel wedge and an iron pry, then the central rock mass is bound by adopting a special steel wire rope, and finally the central rock mass is lifted out of the hole by lifting equipment;
s5, manually cleaning
After the central rock mass is lifted out, cleaning the residual rock mass on the hole wall and the hole bottom until the requirement of the design excavation size is met, and finishing excavation of the stratum;
and S6, performing next layer excavation, and sequentially repeating the steps S3-S5 to complete the next layer excavation until the designed depth is reached, so as to complete the whole hole excavation construction of the cast-in-place pile hole.
As a preferable technical scheme, in the step S2, the height of the concrete is 30-50 cm, and the thickness of the concrete is 15-25 cm.
The invention has the following beneficial effects:
(1) the invention adopts conventional equipment, has simple process, can avoid the problems of incapability of in-place percussion drilling and environmental pollution caused by construction wall-fixing slurry of the percussion drilling, can also avoid the use problem of blasting hole-digging initiating explosive materials, and only needs to be configured with a small power supply on site;
(2) the invention has strong adaptability, is suitable for the hole digging requirement of the rock foundation cast-in-place pile under various topographic and geological conditions, can be adopted by the cast-in-place pile with the diameter of more than 0.8m, and can be excavated by layers and blocks; the hole digging depth can reach more than 40m, and the hole digging depth exceeds 10m, and air needs to be supplied into the hole;
(3) the method has the advantages of less investment and higher construction efficiency, generally, a group of three people can dig holes of two cast-in-place piles at the same time, and one layer of two cast-in-place piles with the diameter of 1.2m can be dug every shift, namely the depth is 65-75 cm;
(4) the invention has good hole digging effect and lower cost, because the periphery digging control is carried out by adopting the water mill drilling machine, the digging forming section is more standard and regular, the over digging amount is small, the digging cost of the filling pile with the diameter of 1.2m is 800 yuan, which is obviously lower than the construction cost of the impact drill and the construction cost of other manual hole digging piles.
Drawings
FIG. 1 is a schematic flow diagram of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and examples, but the present invention is not limited to the embodiments described below.
In fig. 1, the method for constructing a bored concrete pile by manual hole excavation according to this embodiment includes the following steps:
s1, leveling a field
Mechanically or manually cleaning and flattening the field around the hole opening of the cast-in-place pile;
s2. concrete fore shaft
Excavating the hole opening part of the cast-in-place pile hole to a rock surface, and then pouring concrete with a certain height along the periphery of the hole opening, wherein the height of the concrete is 45cm, and the thickness of the concrete is 20 cm;
s3, drilling and taking the rock core around the dug pile
Sequentially drilling core cores around a bored pile hole by using a water mill drilling machine, setting a boundary line to be externally placed by 5cm for pulling out a drill, wherein the drilling depth is 65-75 cm each time, the diameter of the core is 15cm, the core is outwards inclined by 3 degrees during drilling, the drill is lifted and stopped after the first peripheral hole is drilled to the required depth, then the core is manually pried off, the core is lifted out of the hole by using a special clamp, the core is loaded into an iron bucket for lifting and outward transportation, and after the first core is taken out, all the core cores around are sequentially drilled and transported by a circular drilling process;
s4. excavating central rock mass
After all the rock cores at the periphery are drilled and transported outside, the central rock mass is broken manually by adopting a steel wedge and an iron pry, then the central rock mass is bound by adopting a special steel wire rope, and finally the central rock mass is lifted out of the hole by lifting equipment;
s5, manually cleaning
After the central rock mass is lifted out, cleaning the residual rock mass on the hole wall and the hole bottom until the requirement of the design excavation size is met, and finishing excavation of the stratum;
and S6, performing next layer excavation, and sequentially repeating the steps S3-S5 to complete the next layer excavation until the designed depth is reached, so as to complete the whole hole excavation construction of the cast-in-place pile hole.
The method of the invention is adopted to excavate the bored concrete pile hole with the diameter of 1.1m, the excavation amount is reduced by 0.4 square per linear meter, and the concrete is correspondingly reduced by 0.4 square.
Claims (2)
1. A construction method for manually digging a hole in a cast-in-place pile is characterized by comprising the following steps:
s1, leveling a field
Mechanically or manually cleaning and flattening the field around the hole opening of the cast-in-place pile;
s2. concrete fore shaft
Excavating the hole opening part of the cast-in-place pile hole to a rock surface, and then pouring concrete with a certain height along the periphery of the hole opening;
s3, drilling a rock core around a bored concrete pile hole
Sequentially drilling core cores around a bored pile hole by using a water mill drilling machine, designing a boundary line to be externally placed for 5cm to drill, wherein the drilling depth is 65-75 cm each time, the diameter of the core is 15cm, the core is outwards inclined by 3 degrees or 4 degrees during drilling, the first peripheral hole is drilled to the required depth, then the drill is lifted and stopped, then the core is manually pried off, the core is lifted out of the hole by using a special clamp, the core is loaded into an iron bucket to be lifted and transported outwards, and after the first core is taken out, all the core cores around are sequentially drilled and transported outwards by a circulating drilling process;
s4. excavating central rock mass
After all the rock cores at the periphery are drilled and transported outside, the central rock mass is broken manually by adopting a steel wedge and an iron pry, then the central rock mass is bound by adopting a special steel wire rope, and finally the central rock mass is lifted out of the hole by lifting equipment;
s5, manually cleaning
After the central rock mass is lifted out, cleaning the residual rock mass on the hole wall and the hole bottom until the requirement of the design excavation size is met, and finishing excavation of the stratum;
s6, performing next-layer excavation
And (5) sequentially repeating the steps S3-S5 to finish the next layer of excavation until the excavation reaches the designed depth, and finishing the whole hole excavation construction of the cast-in-place pile hole.
2. The manual hole digging construction method for the cast-in-place pile according to claim 1, characterized in that: in the step S2, the height of the concrete is 30-50 cm, and the thickness of the concrete is 15-25 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110785081.0A CN113482013A (en) | 2021-07-12 | 2021-07-12 | Manual hole digging construction method for cast-in-place pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110785081.0A CN113482013A (en) | 2021-07-12 | 2021-07-12 | Manual hole digging construction method for cast-in-place pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113482013A true CN113482013A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110785081.0A Pending CN113482013A (en) | 2021-07-12 | 2021-07-12 | Manual hole digging construction method for cast-in-place pile |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010106543A (en) * | 2008-10-30 | 2010-05-13 | Railway Technical Res Inst | Construction method for cast-in-place pile |
| CN107059847A (en) * | 2017-06-20 | 2017-08-18 | 中国华西企业有限公司 | A kind of competent bed water mill bores pouring pile hole structure and its construction from the bottom of one's heart |
| CN108589740A (en) * | 2018-03-28 | 2018-09-28 | 江苏省交通工程集团有限公司 | The water mill of artificial digging pile bores construction method |
| CN108625385A (en) * | 2018-06-25 | 2018-10-09 | 成都市市政工程（集团）有限责任公司 | Mountain area rocky stratum bridge pile foundation water mill drilling construction method |
| CN109469051A (en) * | 2018-10-25 | 2019-03-15 | 江苏南通三建集团股份有限公司 | The construction of manual-excavation cast-in-place pile technique in weak-weathered rock or middle weathering formation area |
-
2021
- 2021-07-12 CN CN202110785081.0A patent/CN113482013A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010106543A (en) * | 2008-10-30 | 2010-05-13 | Railway Technical Res Inst | Construction method for cast-in-place pile |
| CN107059847A (en) * | 2017-06-20 | 2017-08-18 | 中国华西企业有限公司 | A kind of competent bed water mill bores pouring pile hole structure and its construction from the bottom of one's heart |
| CN108589740A (en) * | 2018-03-28 | 2018-09-28 | 江苏省交通工程集团有限公司 | The water mill of artificial digging pile bores construction method |
| CN108625385A (en) * | 2018-06-25 | 2018-10-09 | 成都市市政工程（集团）有限责任公司 | Mountain area rocky stratum bridge pile foundation water mill drilling construction method |
| CN109469051A (en) * | 2018-10-25 | 2019-03-15 | 江苏南通三建集团股份有限公司 | The construction of manual-excavation cast-in-place pile technique in weak-weathered rock or middle weathering formation area |
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Application publication date: 20211008 |
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