CN112962670B - Underground pipe gallery in-situ protection method - Google Patents
Underground pipe gallery in-situ protection method Download PDFInfo
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- CN112962670B CN112962670B CN202110189369.1A CN202110189369A CN112962670B CN 112962670 B CN112962670 B CN 112962670B CN 202110189369 A CN202110189369 A CN 202110189369A CN 112962670 B CN112962670 B CN 112962670B
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- pipe gallery
- underground pipe
- lifting
- guide cylinder
- steel sheet
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Composite Materials (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Hydrology & Water Resources (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to an underground pipe gallery in-situ protection method, which comprises the following steps: a plurality of lifting piles are driven into two sides of the pipe gallery along the length direction of the pipe gallery; erecting support beams on the ground at two sides of the pipe gallery along the length direction of the pipe gallery, installing jacking pieces on the support beams, and connecting the jacking pieces with the lifting piles; excavating one side of the pipe gallery to form a construction pit, and constructing a guide cylinder in the construction pit, so that one end of the guide cylinder penetrates through the lifting pile on one side, and the other end of the guide cylinder extends out of the soil body; placing the support rod into the guide cylinder, and advancing along the guide cylinder until the support rod passes through the lifting pile on the other side; the jacking piece drives the lifting pile to lift until the supporting rod is in contact with the underground pipe gallery to support the underground pipe gallery; the displacement monitoring piece is installed on the underground pipe gallery, the method is simple in construction, and the safety of the pipeline is effectively guaranteed.
Description
Technical Field
The invention relates to the technical field of underground engineering, in particular to an in-situ protection method for an underground pipe gallery.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The upper part of the urban deep foundation pit construction has more pipelines, in the pipeline moving and modifying process, the conditions of no moving and modifying route, too high time and cost and the like without moving and modifying are frequently encountered, the pipeline which cannot be moved and modified on the upper part of the deep foundation pit needs to be protected in situ, the conventional construction method usually adopts a pure upper part suspension lower part supporting mode, and the pipeline has a certain protection effect, but an inventor discovers that the pipelines have the conditions of displacement, sedimentation and deformation of a pipe gallery in the construction process.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides the in-situ protection method for the underground pipe gallery, is safe, reliable, economical and reasonable, can greatly shorten the construction time, improves the construction efficiency, and ensures the safety of a pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides an underground pipe gallery in-situ protection method, including the following steps:
a plurality of lifting piles are driven into two sides of the pipe gallery along the length direction of the pipe gallery;
erecting support beams on the ground at two sides of the pipe gallery along the length direction of the pipe gallery, installing jacking pieces on the support beams, and connecting the jacking pieces with the lifting piles;
excavating one side of the pipe gallery to form a construction pit, and constructing a guide cylinder in the construction pit, so that one end of the guide cylinder penetrates through the lifting pile on one side, and the other end of the guide cylinder extends out of the soil body;
placing the support rod into the guide cylinder, and advancing along the guide cylinder until the support rod passes through the lifting pile on the other side;
the jacking piece drives the lifting pile to lift until the supporting rod is in contact with the underground pipe gallery to support the underground pipe gallery;
and installing a displacement monitoring piece on the underground pipe gallery.
Further, the lifting pile is a steel sheet pile, a lifting lug plate is fixed to the top of the steel sheet pile, and a hole is formed in the bottom of the steel sheet pile.
Furthermore, the steel sheet pile is a carbon steel killed steel sheet, and the outer surface of the steel sheet pile is coated with an anticorrosive fireproof material.
Further, the steel sheet pile is formed by vibroflotation or hollowing.
Furthermore, the jacking piece is connected with the lifting pile through a guy cable.
Further, the distance between two adjacent lift stake of piping lane both sides is equal.
Furthermore, after the two end parts of the supporting rod penetrate through the lifting piles on the two sides, the guide cylinder is drawn out.
Furthermore, the support beam is a Bailey beam.
Furthermore, the bracing piece adopts solid metal pole, and its two tip are equipped with a plurality of cardboards, cardboard one end is connected with the bracing piece rotation, is equipped with the elastic component between cardboard and the bracing piece.
Further, when displacement value that displacement detection spare detected and obtains is greater than the setting value, jacking piece work is carried out the jacking to underground pipe gallery.
The invention has the beneficial effects that:
1. compared with the traditional method, the underground pipe gallery in-situ protection method has the advantages of relatively simple construction, high construction speed, low economic cost, labor-saving and environment-friendly time, good construction operation environment for workers and low labor intensity by adopting the method of excavating on one side of the pipe gallery.
2. The underground pipe gallery in-situ protection method provided by the invention has the displacement sensor and the jacking piece, can monitor the displacement of the underground pipe gallery at any time, and can adjust the flatness of the underground pipe gallery by utilizing the jacking piece and the supporting rod to prevent the underground pipe gallery from settling and deforming, so that not only is manpower saved, but also the pipeline can be effectively protected, and the service life of the pipeline is effectively prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a flowchart of a method of example 1 of the present invention;
FIG. 2 is a schematic structural diagram of a steel sheet pile according to embodiment 1 of the present invention;
fig. 3 is a schematic view of a support rod structure according to embodiment 1 of the present invention;
FIG. 4 is a top view of the supporting rods of embodiment 1 of the present invention after supporting the underground pipe gallery;
FIG. 5 is a front view of the supporting rod of the embodiment 1 of the present invention after supporting the underground pipe gallery;
the system comprises an underground pipe gallery 1, a steel sheet pile 2, a hoisting hole 2-1, a hole 2-2, a Bailey beam 3, a jacking hydraulic cylinder 4, a guide cylinder 5, a support rod 6, a clamping plate 6-1, a spring 6-2 and a displacement sensor 7.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
As described in the background art, a conventional underground pipe gallery protection construction method usually adopts a pure upper-suspended lower-supported protection mode, and has a certain protection effect, but the situations of pipeline displacement and pipe gallery settlement and deformation exist in the construction process, and aiming at the problems, the application provides an underground pipe gallery in-situ protection method.
In a typical embodiment of the present application, an underground pipe gallery in-situ protection method, the length of the underground pipe gallery 1 is 20000mm, the width is 3000mm, and the height is 2000mm, as shown in fig. 1-5, the in-situ protection method includes the following specific steps:
step 1: along the length direction of piping lane, squeeze into a plurality of lift piles respectively in piping lane both sides, the quantity of lift pile sets up according to the in-service use needs, and in this embodiment, squeeze into three lift piles respectively in underground pipe gallery both sides.
The lifting pile is a steel plate pile 2, the steel plate pile is a carbon steel killed steel plate, an anticorrosive fireproof material is coated on the outer side face of the steel plate pile, the lifting pile is dampproof and anticorrosive, the steel plate pile is the same in size and the same in underground driving depth, a lifting lug plate is fixedly welded to the top of the steel plate pile, a lifting hole 2-1 is formed in the lifting lug plate, a round hole 2-2 is formed in the bottom of the steel plate pile, and the lifting pile is preferably 5000mm long, 1000mm wide and 500mm thick.
In this embodiment, the driving depth of the lifting pile makes the highest point of the circular hole at the bottom of the lifting pile lower than the bottom of the underground pipe gallery.
Preferably, the line of two corresponding steel sheet piles in pipe gallery both sides is perpendicular with underground pipe gallery's length direction.
And 2, step: along piping lane length direction, erect a supporting beam, preferred on the subaerial of piping lane both sides, a supporting beam adopts beiLei beam 3, beiLei beam's length is 20000mm, and the width is 1000mm, highly is 1500mm.
The steel sheet pile lifting device is characterized in that the lifting piece is installed on the Bailey beam, the lifting piece is arranged on each steel sheet pile in a matched mode, preferably, the lifting piece adopts a lifting hydraulic cylinder 4, a cylinder body of the lifting hydraulic cylinder is fixed on the Bailey beam, a piston rod of the lifting hydraulic cylinder is connected with the steel sheet piles through inhaul cables and lifting holes in the tops of the steel sheet piles, and the lifting hydraulic cylinder can drive the steel sheet piles to do lifting movement.
And 3, step 3: excavate in one side of underground pipe gallery, form the construction hole, be under construction to the guide cylinder in the construction hole, guide cylinder 5 adopts the metal cylinder, inserts the guide cylinder in the pit wall in construction hole for the circular hole of the steel sheet pile bottom of excavation one side is passed to the one end of guide cylinder, and the other end of guide cylinder stretches out to the soil body outside, accomplishes the construction of three guide cylinder in proper order, and clears up the inside soil of guide cylinder.
In this embodiment, for the two side excavations of traditional underground pipe gallery normal position protection, the construction is simple relatively, construction speed is fast, and economic cost is low, saves man-hour and environmental protection, and workman's construction operation environment is good, low in labor strength.
And 4, step 4: the supporting rod 6 is arranged in the guide cylinder, the supporting rod is a solid metal rod, a plurality of clamping plates 6-1 are arranged at two end portions of the supporting rod, one end of each clamping plate is rotatably connected with the supporting rod, an elastic part is arranged between each clamping plate and the corresponding supporting rod, preferably, each elastic part is a spring 6-2, the supporting rod moves in the guide cylinder along the axis direction of the guide cylinder, the guide cylinder guides the moving of the supporting rod, the end portions of the supporting rods penetrate through the underground pipe gallery and keep away from the bottom hole of the steel sheet pile on one side of the construction pit, and when the supporting rods penetrate through the bottom hole of the steel sheet pile, the clamping plates stretch to enable the supporting rods to clamp the steel sheet pile and prevent the supporting rods from being separated from the bottom hole of the steel sheet pile. And the cardboard opens and to make cardboard terminal surface and bracing piece contact, the biggest turned angle of restriction cardboard, in this embodiment, promotes the bracing piece from the guide cylinder through a metal push rod, judges whether the bracing piece impels to target in place through judging the distance that metal push rod stretched into the guide cylinder, the distance between two steel sheet piles.
And when the judged supporting rod penetrates through the two steel sheet piles, the guide cylinder is drawn out. The cardboard of bracing piece both sides all is in the state of opening this moment, has avoided the bracing piece to break away from the steel sheet pile.
And 5: jacking pneumatic cylinder drives the steel sheet pile and promotes, and the steel sheet pile can drive the bracing piece and promote, contacts when bracing piece and underground pipe gallery bottom surface for the pressure of jacking pneumatic cylinder is when suddenly rising, and the jacking pneumatic cylinder stops the jacking, explains that the bracing piece has the bottom surface of in close contact with underground pipe gallery, can support underground pipe gallery.
And 6: displacement sensor 7 is installed on the top surface of underground pipe gallery, displacement sensor is used for detecting underground pipe gallery's displacement value, is connected displacement sensor and control system, can transmit the displacement value of gathering for control system.
The control system is connected with the jacking hydraulic cylinder and can control the operation of the jacking hydraulic cylinder.
In the foundation ditch work progress, the underground pipe gallery's that real-time detection displacement sensor gathered position value, when the displacement value that obtains was greater than the setting value when gathering, jacking pneumatic cylinder control bracing piece jacking carries out the lifting to the underground pipe gallery, and the roughness of adjustment underground pipe gallery prevents that it from subsiding and warp, not only uses manpower sparingly and can also guarantee that the pipeline is effectively protected, has effectively prolonged the life of pipeline, in this embodiment, the setting value is 10mm.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (7)
1. An underground pipe gallery in-situ protection method is characterized by comprising the following steps:
a plurality of lifting piles are driven into two sides of the pipe gallery along the length direction of the pipe gallery, the lifting piles are steel sheet piles, lifting lug plates are fixed at the tops of the steel sheet piles, and holes are formed in the bottoms of the steel sheet piles;
erecting support beams on the ground at two sides of the pipe gallery along the length direction of the pipe gallery, installing jacking pieces on the support beams, and connecting the jacking pieces with the lifting piles;
excavating one side of the pipe gallery to form a construction pit, and constructing a guide cylinder in the construction pit, so that one end of the guide cylinder penetrates through the lifting pile on one side, and the other end of the guide cylinder extends out of the soil body;
placing the support rod into the guide cylinder, advancing along the guide cylinder until the support rod passes through the lifting piles on the other side, and drawing out the guide cylinder after the two end parts of the support rod pass through the lifting piles on the two sides;
the supporting rod is a solid metal rod, a plurality of clamping plates are arranged at two end parts of the supporting rod, one end of each clamping plate is rotatably connected with the supporting rod, an elastic part is arranged between each clamping plate and the supporting rod, and when the supporting rod penetrates through a hole in the bottom of the steel sheet pile, the clamping plates are opened to enable the supporting rod to clamp the steel sheet pile;
the jacking piece drives the lifting pile to lift until the supporting rod is in contact with the underground pipe gallery to support the underground pipe gallery;
and installing a displacement monitoring piece on the underground pipe gallery.
2. The in-situ protection method for the underground pipe gallery according to claim 1, wherein the steel sheet pile is made of a carbon steel killed steel sheet, and the outer surface of the steel sheet pile is coated with an anticorrosive fireproof material.
3. The underground pipe gallery in-situ protection method of claim 1, wherein the steel sheet pile is formed by vibroflotation pile forming or hole digging pile forming.
4. The underground pipe gallery in-situ protection method of claim 1, wherein the jacking piece is connected with the lifting piles through a guy cable.
5. The in situ protection method for an underground pipe rack as claimed in claim 1, wherein the distance between two adjacent lift piles at both sides of the pipe rack is equal.
6. The underground pipe gallery in-situ protection method of claim 1, wherein the support beam is a Bailey beam.
7. The in-situ protection method for the underground pipe gallery according to claim 1, wherein when the displacement value detected by the displacement detection piece is larger than a set value, the jacking piece works to jack the underground pipe gallery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110189369.1A CN112962670B (en) | 2021-02-19 | 2021-02-19 | Underground pipe gallery in-situ protection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110189369.1A CN112962670B (en) | 2021-02-19 | 2021-02-19 | Underground pipe gallery in-situ protection method |
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| CN112962670A CN112962670A (en) | 2021-06-15 |
| CN112962670B true CN112962670B (en) | 2022-10-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100794609B1 (en) * | 2006-01-13 | 2008-01-14 | 신일씨엔아이(주) | Construction method of underground structure using concrete filled pipe roof and concrete wall |
| CN102242546A (en) * | 2010-05-12 | 2011-11-16 | 梁闽 | Method and device for regulating and controlling deformation of foundation by utilizing pullout resistance of reinforcing elements |
| CN102767194B (en) * | 2012-07-13 | 2014-06-11 | 河海大学 | Construction method for treating operating metro tunnel settlement by using anchor cable method |
| CN108589775B (en) * | 2018-05-07 | 2020-06-16 | 中铁十七局集团第三工程有限公司 | Construction method for preventing underground pipe gallery from generating differential settlement |
| CN110578343A (en) * | 2019-09-26 | 2019-12-17 | 殷茜东 | Suspension protection structure and method for high-voltage power pipeline at top of deep foundation pit |
| CN211200459U (en) * | 2019-11-18 | 2020-08-07 | 沈阳市市政工程设计研究院有限公司 | Piping lane normal position protection architecture |
| CN111058539A (en) * | 2020-01-13 | 2020-04-24 | 上海先为土木工程有限公司 | Building jacking underpinning device and method |
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