CN111456024A - Rock-socketed secant pile construction method for rockfill stratum - Google Patents
Rock-socketed secant pile construction method for rockfill stratum Download PDFInfo
- Publication number
- CN111456024A CN111456024A CN202010265844.4A CN202010265844A CN111456024A CN 111456024 A CN111456024 A CN 111456024A CN 202010265844 A CN202010265844 A CN 202010265844A CN 111456024 A CN111456024 A CN 111456024A
- Authority
- CN
- China
- Prior art keywords
- pile
- concrete pile
- rock
- plain concrete
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- 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
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
Abstract
A construction method of an engaged pile for rock embedding in a rock-filling stratum belongs to the technical field of foundation pit support construction, solves the problem of low construction efficiency of the engaged pile due to the height complexity of an underground stratum and the limitation of a construction process, carries out stratum replacement and filling on a required construction site, improves the construction efficiency of the engaged pile, does not use a pile grinding machine, firstly presses the bottom end of a pile casing into the stratum by means of a pressurizer, adopts a rotary drilling rig to drill a hole by means of a barrel drill to take earth, presses the pile casing by means of the pressurizer again when the depth of the barrel drill to the stratum is 3-6m, circulates the operation until the pile casing reaches the specified depth, does not need sleeve advancing, does not need to put in a full-casing drilling rig, only needs to bury the pile casing and adopts the rotary drilling rig to form the hole, greatly improves the construction.
Description
Technical Field
The invention belongs to the technical field of foundation pit support construction, and particularly relates to a construction method of a rock-socketed secant pile in a rock-filling stratum
Background
The secant pile is a foundation pit support structure which is formed by mutually secant arrangement between piles, the arrangement mode of the piles is that one non-reinforced plain concrete pile and one reinforced concrete pile are arranged in a staggered mode, and mutually overlapped concrete parts exist between adjacent piles, so that the secant pile with the functions of retaining soil and stopping water is played.
Disclosure of Invention
In order to solve the problems, the invention designs a construction method of the rock-socketed secant pile in the rock-filling stratum, and stratum replacement filling is carried out on a construction site before construction, so that the construction efficiency of the secant pile is improved.
The invention adopts the technical scheme that the construction method of the rock-socketed secant pile in the rockfill stratum is designed, comprises secant piles formed by mutually meshing plain concrete piles and reinforced concrete piles which are alternately arranged in sequence,
a, replacing and filling a rock-filling stratum;
the stone filling stratum of the construction site is replaced and filled, and the guide wall construction is carried out according to the construction requirement;
b, drilling and taking out soil, embedding a pile casing to form pile holes, and pouring concrete to form a first plain concrete pile and a second plain concrete pile;
after drilling and soil taking are carried out by a rotary drilling rig in a barrel drill mode on a construction site, hoisting and protecting a barrel, embedding to form a first plain concrete pile hole, carrying out concrete pouring on the first plain concrete pile hole to form a first plain concrete pile, drilling and soil taking at a specified interval adjacent to the first plain concrete pile, embedding the hoisting and protecting barrel to form a second plain concrete pile hole, and carrying out concrete pouring on the second plain concrete pile hole to form a second plain concrete pile;
c, pulling out the pile casing, and drilling and taking soil to form a first reinforced concrete pile hole after the first plain concrete pile and the second plain concrete pile are initially set;
pulling out the pile casing, drilling a hole between the first plain concrete pile and the second plain concrete pile after the plain concrete pile is initially set to take out soil to form a first reinforced concrete pile hole, hoisting a reinforcement cage in the first reinforced concrete pile hole and performing concrete pouring to form a first reinforced concrete pile;
d, drilling at a specified interval adjacent to the second plain concrete pile to form a third plain concrete pile hole, then embedding a pile casing, and pouring concrete in the third plain concrete pile hole to form a third plain concrete pile;
e, pulling out the pile casing, drilling a hole between the second plain concrete pile and the third plain concrete pile to take out soil to form a second reinforced concrete pile hole, hoisting a reinforcement cage in the second reinforced concrete pile hole and pouring concrete to form a second reinforced concrete pile;
and F, repeating the step D and the step E until all the occlusive piles are completely finished.
The concrete is C25 underwater concrete, and after the plain concrete pile is initially set, when the strength reaches more than 2MPa, the reinforced concrete pile is drilled and subjected to soil taking.
The cylindrical drill comprises a cylinder body, a connecting device arranged at the upper end of the cylinder body and a drill bit arranged at the lower end of the cylinder body, wherein the cylinder body is of a cylindrical structure with the upper end closed, and a spiral retaining sheet in the shape of a spiral conveyer is arranged on the inner wall of the cylinder body.
The barrel inner wall still be provided with the mounting groove of spiral separation blade looks adaptation, the mounting groove be the fixed spiral separation blade of U type slot structure centre gripping.
The mounting groove penetrates through the side wall of the mounting groove by means of bolts and is in bolted connection with the spiral baffle.
The outer wall of the cylinder body is provided with a through hole penetrating through the cylinder body.
The construction method has the advantages that the construction method for the rock-filling stratum rock-socketed secant pile is designed, stratum replacement filling is carried out on a required construction site, the construction efficiency of the secant pile is improved, a pile grinding machine is not used, the bottom end of the protective cylinder is firstly pressed into the stratum by means of the pressurizer, a rotary drilling rig is adopted to drill a hole in a cylinder to take earth, when the depth of the cylinder drilled to the stratum is 3-6m, the protective cylinder is pressed in by means of the pressurizer again, the operation is circulated until the protective cylinder reaches the specified depth, no sleeve is required to be advanced, no full-sleeve drilling rig is required to be put in, the protective cylinder is only required to be buried, and the rotary drilling rig is adopted to form a hole, so that.
Drawings
FIG. 1 is a schematic representation of the steps of the present invention;
fig. 2 is a schematic structural view of the cartridge.
In the attached drawing, the device comprises a cylinder body 1, a cylinder body 2, a spiral retaining piece 3 and an installation groove.
Detailed Description
The invention provides a construction method of a rock-socketed secant pile in a rockfill stratum, which comprises secant piles formed by mutually meshing plain concrete piles and reinforced concrete piles which are alternately arranged in sequence,
a, replacing and filling a rock-filling stratum;
the stone filling stratum of the construction site is replaced and filled, and the guide wall construction is carried out according to the construction requirement;
b, drilling and taking out soil, embedding a pile casing to form pile holes, and pouring concrete to form a first plain concrete pile and a second plain concrete pile;
after drilling and soil taking are carried out by a rotary drilling rig in a barrel drill mode on a construction site, hoisting and protecting a barrel, embedding to form a first plain concrete pile hole, carrying out concrete pouring on the first plain concrete pile hole to form a first plain concrete pile, drilling and soil taking at a specified interval adjacent to the first plain concrete pile, embedding the hoisting and protecting barrel to form a second plain concrete pile hole, and carrying out concrete pouring on the second plain concrete pile hole to form a second plain concrete pile;
c, pulling out the pile casing, and drilling and taking soil to form a first reinforced concrete pile hole after the first plain concrete pile and the second plain concrete pile are initially set;
pulling out the pile casing, drilling a hole between the first plain concrete pile and the second plain concrete pile after the plain concrete pile is initially set to take out soil to form a first reinforced concrete pile hole, hoisting a reinforcement cage in the first reinforced concrete pile hole and performing concrete pouring to form a first reinforced concrete pile;
d, drilling at a specified interval adjacent to the second plain concrete pile to form a third plain concrete pile hole, then embedding a pile casing, and pouring concrete in the third plain concrete pile hole to form a third plain concrete pile;
e, pulling out the pile casing, drilling a hole between the second plain concrete pile and the third plain concrete pile to take out soil to form a second reinforced concrete pile hole, hoisting a reinforcement cage in the second reinforced concrete pile hole and pouring concrete to form a second reinforced concrete pile;
and F, repeating the step D and the step E until all the occlusive piles are completely finished.
The method is characterized in that stratum replacement filling is carried out on a required construction site, the construction efficiency of the secant pile is improved, a pile grinding machine is not used any more, the bottom end of a protective cylinder is pressed into the stratum by means of a pressurizer, a rotary drilling rig is adopted to drill a cylinder to obtain soil, when the depth of the cylinder drilled to the stratum is 3-6m, the protective cylinder is pressed in by means of the pressurizer again, the operation is circulated until the protective cylinder reaches the specified depth, the protective cylinder is deeply buried and the mud retaining wall is used for construction, the advance of a sleeve is not needed, the full-sleeve drilling rig is not needed, the protective cylinder is only needed to be buried underground, and the rotary drilling rig is adopted to form the hole, so that.
As shown in fig. 1, the concrete is C25 underwater concrete, and after the plain concrete pile is initially set, when the strength reaches more than 2MPa, the reinforced concrete pile is drilled and the soil is taken.
The plain concrete pile is cast by adopting common underwater concrete, and the construction of the reinforced concrete pile is carried out 12-40 hours after the casting is finished, so that the piping phenomenon of the plain concrete pile is effectively prevented.
As shown in figure 1, the barrel drill comprises a barrel body 1, a connecting device arranged at the upper end of the barrel body 1 and a drill bit arranged at the lower end of the barrel body 1, wherein the barrel body 1 is of a tubular structure with a closed upper end, and a spiral blocking piece 2 in the shape of a packing auger is arranged on the inner wall of the barrel body 1.
When drilling and taking soil, a pile grinding machine is not used, but a rotary drilling machine is adopted to carry out construction of a pile hole by matching a cylindrical drill and a protective cylinder, so that the construction efficiency is greatly improved, the construction cost is reduced, but the construction process shows that the mode of taking soil by a grab bucket can consume a large amount of construction time, the spiral retaining sheet 2 is arranged in the cylindrical drill body 1 of the cylindrical drill, the spiral retaining sheet 2 not only can carry out certain stirring on soil, clay, sand and stone and the like in the cylindrical drill body 1 to enable the soil, the clay, the sand and the like to be looser, more soil can be grabbed when the grab bucket carries out soil taking, the working efficiency of taking soil by the grab bucket is improved, the spiral retaining sheet 2 has a certain width, when taking soil after the cylindrical drill is drilled, the cylindrical drill can be pulled out, a large amount of soil, clay, sand and the like can be taken out by the spiral retaining sheet 2, the construction efficiency of taking soil is improved.
As shown in fig. 2, the inner wall of the barrel body 1 is further provided with a mounting groove 3 matched with the spiral retaining piece 2, and the mounting groove 3 is of a U-shaped groove structure and is used for clamping and fixing the spiral retaining piece 2.
As shown in fig. 2, the mounting groove 3 is formed through the sidewall thereof by bolts and bolted to the spiral shielding plate 2.
The screw retaining pieces 2 can be more conveniently detached through the bolt connection, and the screw retaining pieces are simple and easy to operate.
As shown in fig. 2, the outer wall of the cylinder 1 is provided with a through hole penetrating through the cylinder 1.
When a section of thick bamboo bored and taken out in following the drilling, can carry a large amount of soil, clay, gravel and sand etc. on the spiral separation blade 2, the accessible is strikeed, the mode of rocking, makes soil, clay, gravel and sand etc. on the spiral separation blade 2 fall down, when soil, clay, gravel and sand etc. on the spiral separation blade 2 were difficult for falling down, soil, clay, gravel and sand etc. on the outer wall of accessible barrel 1 were clear away on the spiral separation blade 2.
Claims (6)
1. The construction method of the rock-socketed secant pile in the rock-filling stratum comprises the secant pile formed by mutually meshing plain concrete piles and reinforced concrete piles which are sequentially and alternately arranged, and is characterized in that:
a, replacing and filling a rock-filling stratum;
the stone filling stratum of the construction site is replaced and filled, and the guide wall construction is carried out according to the construction requirement;
b, drilling and taking out soil, embedding a pile casing to form pile holes, and pouring concrete to form a first plain concrete pile and a second plain concrete pile;
after drilling and soil taking are carried out by a rotary drilling rig in a barrel drill mode on a construction site, hoisting and protecting a barrel, embedding to form a first plain concrete pile hole, carrying out concrete pouring on the first plain concrete pile hole to form a first plain concrete pile, drilling and soil taking at a specified interval adjacent to the first plain concrete pile, embedding the hoisting and protecting barrel to form a second plain concrete pile hole, and carrying out concrete pouring on the second plain concrete pile hole to form a second plain concrete pile;
c, pulling out the pile casing, and drilling and taking soil to form a first reinforced concrete pile hole after the first plain concrete pile and the second plain concrete pile are initially set;
pulling out the pile casing, drilling a hole between the first plain concrete pile and the second plain concrete pile after the plain concrete pile is initially set to take out soil to form a first reinforced concrete pile hole, hoisting a reinforcement cage in the first reinforced concrete pile hole and performing concrete pouring to form a first reinforced concrete pile;
d, drilling at a specified interval adjacent to the second plain concrete pile to form a third plain concrete pile hole, then embedding a pile casing, and pouring concrete in the third plain concrete pile hole to form a third plain concrete pile;
e, pulling out the pile casing, drilling a hole between the second plain concrete pile and the third plain concrete pile to take out soil to form a second reinforced concrete pile hole, hoisting a reinforcement cage in the second reinforced concrete pile hole and pouring concrete to form a second reinforced concrete pile;
and F, repeating the step D and the step E until all the occlusive piles are completely finished.
2. The method for constructing a rock-socketed secant pile in a rock-filling stratum according to claim 1, wherein: and C25 underwater concrete is used as the concrete in the step C, and after the plain concrete pile is initially set, drilling and soil taking of the reinforced concrete pile are carried out when the strength reaches more than 2 MPa.
3. The method for constructing a rock-socketed secant pile in a rock-filling stratum according to claim 1, wherein: and the barrel drill in the step B comprises a barrel body (1), a connecting device arranged at the upper end of the barrel body (1) and a drill bit arranged at the lower end of the barrel body (1), wherein the barrel body (1) is of a cylindrical structure with a closed upper end, and a spiral blocking piece (2) in a packing auger shape is arranged on the inner wall of the barrel body (1).
4. The method for constructing a rock-socketed secant pile in a rock-filling stratum as claimed in claim 3, wherein: barrel (1) inner wall still be provided with mounting groove (3) with spiral separation blade (2) looks adaptation, mounting groove (3) be fixed spiral separation blade (2) of U type slot structure centre gripping.
5. The method for constructing a rock-socketed secant pile in a rock-filling stratum as claimed in claim 4, wherein: the mounting groove (3) penetrates through the side wall of the mounting groove by means of bolts and is in bolted connection with the spiral retaining sheet (2).
6. The method for constructing a rock-socketed secant pile in a rock-filling stratum as claimed in claim 3, wherein: the outer wall of the cylinder body (1) is provided with a through hole penetrating through the cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265844.4A CN111456024A (en) | 2020-04-07 | 2020-04-07 | Rock-socketed secant pile construction method for rockfill stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265844.4A CN111456024A (en) | 2020-04-07 | 2020-04-07 | Rock-socketed secant pile construction method for rockfill stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111456024A true CN111456024A (en) | 2020-07-28 |
Family
ID=71683558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010265844.4A Pending CN111456024A (en) | 2020-04-07 | 2020-04-07 | Rock-socketed secant pile construction method for rockfill stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111456024A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459049A (en) * | 2020-11-20 | 2021-03-09 | 江西中恒地下空间科技有限公司 | Device for realizing secant pile of underground garage and secant pile |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206805Y (en) * | 1994-04-19 | 1995-09-06 | 中国科学院兰州冰川冻土研究所冻土工程国家重点实验室 | Moving dregs discharge tube |
| CN201943581U (en) * | 2010-12-24 | 2011-08-24 | 北京市三一重机有限公司 | Inner spiral drum-type boring tool |
| CN203531895U (en) * | 2013-11-01 | 2014-04-09 | 湖南新金刚工程机械有限公司 | Open and close drilling sampling drill bit |
| CA2820954C (en) * | 2010-12-22 | 2016-02-09 | Weatherford/Lamb, Inc. | Earth removal member with features for facilitating drill-through |
| CN207093008U (en) * | 2017-08-17 | 2018-03-13 | 中铁六局集团有限公司 | Drill |
| CN110241836A (en) * | 2019-07-04 | 2019-09-17 | 嘉盛建设集团有限公司 | A kind of construction method of embedding rock water-stop curtain |
| CN110644924A (en) * | 2019-09-30 | 2020-01-03 | 重庆宏工工程机械股份有限公司 | Drilling device convenient to transverse drilling |
-
2020
- 2020-04-07 CN CN202010265844.4A patent/CN111456024A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206805Y (en) * | 1994-04-19 | 1995-09-06 | 中国科学院兰州冰川冻土研究所冻土工程国家重点实验室 | Moving dregs discharge tube |
| CA2820954C (en) * | 2010-12-22 | 2016-02-09 | Weatherford/Lamb, Inc. | Earth removal member with features for facilitating drill-through |
| CN201943581U (en) * | 2010-12-24 | 2011-08-24 | 北京市三一重机有限公司 | Inner spiral drum-type boring tool |
| CN203531895U (en) * | 2013-11-01 | 2014-04-09 | 湖南新金刚工程机械有限公司 | Open and close drilling sampling drill bit |
| CN207093008U (en) * | 2017-08-17 | 2018-03-13 | 中铁六局集团有限公司 | Drill |
| CN110241836A (en) * | 2019-07-04 | 2019-09-17 | 嘉盛建设集团有限公司 | A kind of construction method of embedding rock water-stop curtain |
| CN110644924A (en) * | 2019-09-30 | 2020-01-03 | 重庆宏工工程机械股份有限公司 | Drilling device convenient to transverse drilling |
Non-Patent Citations (2)
| Title |
|---|
| 刘金砺主编: "《桩基工程技术》", 31 August 1996 * |
| 江苏省建设工程质量监督总站等: "《城市轨道交通工程质量监督实务》", 30 November 2017 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459049A (en) * | 2020-11-20 | 2021-03-09 | 江西中恒地下空间科技有限公司 | Device for realizing secant pile of underground garage and secant pile |
| CN112459049B (en) * | 2020-11-20 | 2023-06-27 | 江西中恒地下空间科技有限公司 | Device for realizing engagement pile of underground garage and engagement pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3565190A (en) | Auger-type boring machines | |
| CN108560541B (en) | Rotary drilling full-casing follow-up rock face drilling construction method | |
| EP3839149A1 (en) | Grouting consolidation method for full casing borehole guide prefabricated pile and prefabricated pile therefor | |
| CN100572683C (en) | The large-diameter ultra-deep rock borehole bottom-expanding filling pile job practices | |
| KR930012067B1 (en) | Process for compaction reinforcement grouting or for decompaction drainage and for construction of linear works and plane works in the soils | |
| CN105569560B (en) | A full set of tubular type long auger stake machine and the method for utilizing the ram machine construction | |
| CN102720186B (en) | Underwater once pouring method for variable cross-section bored cast-in-place pile | |
| CN111395330B (en) | Construction method for concrete cast-in-situ bored pile complete steel casing penetrating through underground gallery | |
| CN105780763A (en) | Construction method of medium-hole vibrating casing wall protection type long spiral cast-in-situ bored pile | |
| CN107587502B (en) | Construction method for rotary drilling hole-forming pressure-grouting cement soil occlusion curtain pile | |
| Brown | Practical considerations in the selection and use of continuous flight auger and drilled displacement piles | |
| CN106677166A (en) | Flow construction method for forming cast-in-place bored pile for gravel-decomposed rock stratum in double-machine combined mode | |
| CN104250970A (en) | Novel visual intelligent super-fluid cast-in-place concrete pile device and construction method | |
| CN104711975A (en) | Construction technology for long spiral cast-in-situ bored pile | |
| CN110593254A (en) | Construction method of cast-in-situ bored pile in stratum with karst cave in joint zone | |
| CN111456024A (en) | Rock-socketed secant pile construction method for rockfill stratum | |
| CN113699981A (en) | Construction method for preventing necking of rotary-digging cast-in-place pile in high-fill field | |
| CN104563104A (en) | Linkage type wall protecting device for pile driving drilling machine and construction method for using linkage type wall protecting device for pile driving drilling machine | |
| CN204608773U (en) | Pile work drilling machine coordinated type breast wall apparatus | |
| CN110273413A (en) | A kind of efficient construction method of prefabricated pile | |
| CN114278227B (en) | Construction method of lower pile casing of cast-in-place pile | |
| CN213654797U (en) | Compact mud circulating system for reverse circulation drilling machine | |
| CN111155513B (en) | Full-slewing drilling machine and hydraulic vibration hammer cooperative well drilling method | |
| CN109113054A (en) | A kind of reclaimation area complex geological condition cast-in-situ bored pile multimachine combined construction method | |
| CN111576397A (en) | Rapid construction method for drilled secant pile under complex geology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200728 |