CN108678755B - Quick construction method for soft rock stratum pipe jacking working well - Google Patents
Quick construction method for soft rock stratum pipe jacking working well Download PDFInfo
- Publication number
- CN108678755B CN108678755B CN201810474405.7A CN201810474405A CN108678755B CN 108678755 B CN108678755 B CN 108678755B CN 201810474405 A CN201810474405 A CN 201810474405A CN 108678755 B CN108678755 B CN 108678755B
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- jacking
- pipe
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- pile
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- 238000010276 construction Methods 0.000 title claims abstract description 68
- 239000011435 rock Substances 0.000 title claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a quick construction method of a soft rock layer top pipe working well, which comprises the steps of leveling a field, measuring lofting and positioning a pile hole; adopting a rotary drilling machine to drill, wherein when a certain distance is drilled, a drill bit of the rotary drilling machine exits from a pile hole, and a pile casing is placed into the pile hole; repeating the method until the drilling reaches the designated elevation; a top pipe jacking construction opening is formed in the lowest protective barrel, and a top pipe jacking operation opening is formed in the protective barrel on the side opposite to the top pipe jacking construction opening; excavating the corresponding rock stratum through the jacking operation port to form a jacking operation space; hardening the ground in the jacking operation space and the ground in the pile hole of the jacking pipe; a jacking device for jacking the jacking pipe is arranged in the jacking operation space of the jacking pipe; and excavating the corresponding rock stratum through the jacking construction port of the jacking pipe, and jacking the jacking pipe through the jacking device. The invention reduces the construction workload, reduces the construction difficulty, shortens the construction period and reduces the influence on the environment.
Description
Technical Field
The invention relates to the field of construction, in particular to a quick construction method for a soft rock stratum top pipe working well.
Background
The pipe-jacking construction is a non-excavation construction method, and is a pipeline burying construction technology without excavation or with few excavations. The technology thoroughly solves the problems of damage to urban buildings, road traffic blockage and the like in pipeline burying construction, and has obvious advantages in soil stabilization and environmental protection. This is very important for cities with heavy traffic, dense population, numerous ground structures and complex underground pipelines, which will create a clean, comfortable and beautiful environment for the cities. In the construction environment of soft stratum, at first need excavate a foundation ditch, in order to avoid the stratum to collapse and the hoist and mount of push pipe, can set up great slope usually, but this kind will increase the work load of construction, in addition, construction period is corresponding also can prolong, still can cause the influence to the surrounding environment simultaneously.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a quick construction method for a soft rock stratum top pipe working well, which reduces construction workload, construction difficulty, construction period and construction cost and reduces the influence on the environment.
In order to solve the technical problems, the invention adopts the following technical scheme:
a quick construction method for a soft rock stratum top pipe working well comprises the following steps:
(1) leveling the field, and positioning the position of the pile hole by measuring lofting;
(2) adopting a rotary drilling machine to carry out drilling operation, wherein when a certain distance is drilled, a drill bit of the rotary drilling machine exits from a pile hole, and a pile casing is placed into the pile hole to enable the pile casing to fall;
(3) repeating the step (2) until the drilling reaches a specified elevation, splicing two adjacent pile casings in the pile hole end to end, and extending the plurality of pile casings to the bottom of the hole from the opening of the pile hole;
(4) the method comprises the steps of setting a pipe jacking construction port on a casing at the lowest end and corresponding to the position of a pipe jacking construction direction, setting a pipe jacking operation port on a casing at one side opposite to the pipe jacking construction port, wherein the widths of the pipe jacking construction port and the pipe jacking operation port are both larger than the diameter of a pipe to be constructed, the pipe jacking construction port and the pipe jacking operation port are both openings extending upwards from the bottom end of the pipe, and the height of the pipe jacking operation port is equal to that of the pipe to be constructed
Wherein c is the maximum length of each section of jacking pipe to be constructed, and b is the inner diameter of the pile casing;
(5) transversely excavating and widening rock strata corresponding to the jacking operation port through the jacking operation port to form a jacking operation space for horizontally placing jacking pipes and reinforcing the jacking operation space;
(6) hardening the ground in the jacking operation space and the ground in the pile hole of the jacking pipe;
(7) a jacking device for jacking the jacking pipe is arranged in the jacking operation space of the jacking pipe;
(8) and excavating the corresponding rock stratum through the jacking construction port of the jacking pipe, and jacking the jacking pipe through the jacking device.
According to the method, a rotary excavator drilling mode is adopted, segmented drilling is carried out, the protective cylinders are installed after each segment of drilling is finished, the protective cylinders sink under the action of gravity, therefore, after the rotary excavator drills to a specified elevation, the protective cylinders at the lowest end also sink to the bottom of a pile hole, the protective cylinders are spliced together end to the position of a pile opening, the pile hole is protected by means of the protective cylinders, and collapse of soft rock layers into the pile hole is avoided. After the pile hole construction is completed, a top pipe jacking construction opening and a top pipe jacking operation opening are constructed on the pile casing at the bottom of the hole, then a top pipe jacking operation space is excavated through the top pipe jacking operation opening, the ground is hardened after the construction, and the construction is performed at the later stage of convenience. The method comprises the steps that a jacking pipe to be constructed is hoisted downwards from a pile hole orifice, the inner diameter of the whole pile casing is not large, the jacking pipe can only descend in a mode of a small vertical or inclined angle when being hoisted downwards, the jacking pipe needs to be horizontally placed after descending to the bottom of a hole, jacking construction operation is convenient to carry out, the jacking pipe enters a jacking operation space through a jacking operation port, the height of the jacking operation port extending upwards is calculated through a pythagorean theorem according to the maximum inclined angle of the jacking pipe in the pile casing, the bottom end of the jacking pipe is arranged at the bottom of the hole and close to one side of the jacking operation port, the jacking pipe is horizontally placed as a base point, the jacking pipe can enter the jacking operation space through the jacking operation port, and finally a rock stratum is excavated through the jacking operation port, and the jacking construction operation of the jacking pipe is completed. Just need not excavate before the construction like this and form great foundation ditch, only need dig the machine soon and creep into the stake hole can, saved a large amount of manpower and materials, reduced the work load of construction, the construction degree of difficulty also obtains reducing, and construction speed obtains accelerating simultaneously, has shortened the time limit for a project, and the great foundation ditch of the corresponding construction area in stake hole has reduced the influence that causes the environment.
Preferably, the jacking pipe jacking operation space is provided with an arched top wall protruding outwards, and the arched top wall is reinforced in an anchor rod grouting mode. The jacking pipe jacking operation space can be used as a danger avoiding space for constructors, and when the jacking pipe is hung downwards, the constructors can jack the jacking pipe into the operation space, so that falling objects at high altitude are prevented from being injured by smashing. The arch roof is not only convenient relatively in construction, and its structure is difficult to cause the collapse of soft stratum in addition, also conveniently adopts the stock slip casting to consolidate simultaneously.
And optimally, two adjacent protective cylinders are connected in a tongue-and-groove connection mode. Make two adjacent protecting more firm when the section of thick bamboo concatenation, avoid two to protect a dislocation to lead to outside gravel and sand to leak and come in and cause the incident.
In conclusion, the beneficial effects of the invention are as follows: the invention adopts a pile hole mode, reduces the construction range, correspondingly reduces the construction workload and difficulty, improves the construction efficiency, shortens the construction period and reduces the influence on the surrounding environment.
Detailed Description
The present invention is described in further detail below.
In the specific embodiment, the quick construction method for the soft rock stratum top pipe working well comprises the following steps:
(1) leveling the field, and positioning the position of the pile hole by measuring lofting;
(2) adopting a rotary drilling machine to carry out drilling operation, wherein when a certain distance is drilled, a drill bit of the rotary drilling machine exits from a pile hole, and a pile casing is placed into the pile hole to enable the pile casing to fall;
(3) repeating the step (2) until the drilling reaches a specified elevation, splicing two adjacent pile casings in the pile hole end to end, and extending the plurality of pile casings to the bottom of the hole from the opening of the pile hole;
(4) the method comprises the steps of setting a pipe jacking construction port on a casing at the lowest end and corresponding to the position of a pipe jacking construction direction, setting a pipe jacking operation port on a casing at one side opposite to the pipe jacking construction port, wherein the widths of the pipe jacking construction port and the pipe jacking operation port are both larger than the diameter of a pipe to be constructed, the pipe jacking construction port and the pipe jacking operation port are both openings extending upwards from the bottom end of the pipe, and the height of the pipe jacking operation port is equal to that of the pipe to be constructed
Wherein c is the maximum length of each section of jacking pipe to be constructed, and b is the inner diameter of the pile casing;
(5) transversely excavating and widening rock strata corresponding to the jacking operation port through the jacking operation port to form a jacking operation space for horizontally placing jacking pipes and reinforcing the jacking operation space;
(6) hardening the ground in the jacking operation space and the ground in the pile hole of the jacking pipe;
(7) a jacking device for jacking the jacking pipe is arranged in the jacking operation space of the jacking pipe;
(8) and excavating the corresponding rock stratum through the jacking construction port of the jacking pipe, and jacking the jacking pipe through the jacking device.
In this embodiment, the jacking pipe jacking operation space has an outwardly convex arched roof, and the arched roof is reinforced by grouting with an anchor rod.
In this embodiment, two adjacent casing are connected by tongue-and-groove connection.
In the specific implementation process, after the construction of the jacking pipe jacking operation space in the step (5) is completed, the corresponding rock stratum is transversely excavated and widened through the jacking pipe jacking construction opening to form a jacking pipe jacking construction space, the jacking pipe jacking construction space is also provided with an outwards convex arch-shaped top wall, the arch-shaped top wall is reinforced in an anchor rod grouting mode, and accordingly construction personnel can conveniently place corresponding construction equipment in the space and have enough space for construction.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. A quick construction method for a soft rock stratum top pipe working well is characterized by comprising the following steps: the method comprises the following steps:
(1) leveling the field, and positioning the position of the pile hole by measuring lofting;
(2) adopting a rotary drilling machine to carry out drilling operation, wherein when a certain distance is drilled, a drill bit of the rotary drilling machine exits from a pile hole, and a pile casing is placed into the pile hole to enable the pile casing to fall;
(3) repeating the step (2) until the drilling reaches a specified elevation, splicing two adjacent pile casings in the pile hole end to end, and extending the plurality of pile casings to the bottom of the hole from the opening of the pile hole;
(4) the method comprises the steps of setting a pipe jacking construction port on a casing at the lowest end and corresponding to the position of a pipe jacking construction direction, setting a pipe jacking operation port on a casing at one side opposite to the pipe jacking construction port, wherein the widths of the pipe jacking construction port and the pipe jacking operation port are both larger than the diameter of a pipe to be constructed, the pipe jacking construction port and the pipe jacking operation port are both openings extending upwards from the bottom end of the pipe, and the height of the pipe jacking operation port is equal to that of the pipe to be constructed
Wherein c is the maximum length of each section of jacking pipe to be constructed, and b is the inner diameter of the pile casing;
(5) transversely excavating and widening rock strata corresponding to the jacking operation port through the jacking operation port to form a jacking operation space for horizontally placing jacking pipes and reinforcing the jacking operation space;
(6) hardening the ground in the jacking operation space and the ground in the pile hole of the jacking pipe;
(7) a jacking device for jacking the jacking pipe is arranged in the jacking operation space of the jacking pipe;
(8) and excavating the corresponding rock stratum through the jacking construction port of the jacking pipe, and jacking the jacking pipe through the jacking device.
2. The rapid construction method of the soft rock stratum top pipe working well according to claim 1, characterized in that: and two adjacent protective cylinders are connected in a tongue-and-groove connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474405.7A CN108678755B (en) | 2018-05-17 | 2018-05-17 | Quick construction method for soft rock stratum pipe jacking working well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474405.7A CN108678755B (en) | 2018-05-17 | 2018-05-17 | Quick construction method for soft rock stratum pipe jacking working well |
Publications (2)
| Publication Number | Publication Date |
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| CN108678755A CN108678755A (en) | 2018-10-19 |
| CN108678755B true CN108678755B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810474405.7A Active CN108678755B (en) | 2018-05-17 | 2018-05-17 | Quick construction method for soft rock stratum pipe jacking working well |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649012A (en) * | 2015-12-30 | 2016-06-08 | 中铁局集团有限公司 | Construction method for bored pile of subway station enclosure structure of upper-soft lower-hard ground |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3103259B2 (en) * | 1994-02-10 | 2000-10-30 | 東京瓦斯株式会社 | Double pipe propulsion method |
| KR100984883B1 (en) * | 2009-05-22 | 2010-10-01 | 위성배 | The construction method of shield tunneling |
| CN201459756U (en) * | 2009-08-19 | 2010-05-12 | 郑州市市政工程总公司 | Hanging-type construction ceiling coil vertical shaft |
| CN202731927U (en) * | 2012-07-24 | 2013-02-13 | 岑益南 | Tunnel construction device |
| CN103061777B (en) * | 2013-01-18 | 2015-03-04 | 中铁隧道集团有限公司 | Method for building urban underground tunnel shield cutter repairing space with preset reinforcing pile groups |
| CN203925507U (en) * | 2014-03-21 | 2014-11-05 | 中铁二十二局集团第一工程有限公司 | A kind of metro shield assembling and the system of going into the well |
| CN105240019B (en) * | 2015-09-24 | 2018-11-02 | 中国石油天然气集团公司 | A kind of pipe jacking construction method |
| CN105626088B (en) * | 2016-02-02 | 2018-02-06 | 中铁十九局集团轨道交通工程有限公司 | T-shaped bored tunnel shield machine is gone into the well shift method |
| CN206738711U (en) * | 2017-05-23 | 2017-12-12 | 罗永强 | jacking construction structure |
| CN107060795B (en) * | 2017-05-26 | 2018-06-15 | 安徽理工大学 | A kind of underground mine TBM assembly construction methods |
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- 2018-05-17 CN CN201810474405.7A patent/CN108678755B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649012A (en) * | 2015-12-30 | 2016-06-08 | 中铁局集团有限公司 | Construction method for bored pile of subway station enclosure structure of upper-soft lower-hard ground |
Non-Patent Citations (2)
| Title |
|---|
| 基于顶管工作坑钢筋混凝土护壁支护的施工工艺研究;吴骏涛;《中国科技信息》;20131231(第17期);第59页 * |
| 盾构机及后续设备下井组装技术;欧阳璋等;《西部探矿工程》;20061231(第126期);第178-180 * |
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| CN108678755A (en) | 2018-10-19 |
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