CN108049891A - For building the rectangular steel pipe support system of underground engineering with shallow and its construction method - Google Patents
For building the rectangular steel pipe support system of underground engineering with shallow and its construction method Download PDFInfo
- Publication number
- CN108049891A CN108049891A CN201711293745.1A CN201711293745A CN108049891A CN 108049891 A CN108049891 A CN 108049891A CN 201711293745 A CN201711293745 A CN 201711293745A CN 108049891 A CN108049891 A CN 108049891A
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- Prior art keywords
- steel pipe
- rectangular steel
- rectangular
- leg
- pipe
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 213
- 239000010959 steel Substances 0.000 title claims abstract description 213
- 238000010276 construction Methods 0.000 title claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 23
- 239000002689 soil Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 230000010412 perfusion Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000012407 engineering method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/34—Joints between vertical props and horizontal top bars
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention belongs to underground engineering support technologies, and in particular to for building the rectangular steel pipe support system of underground engineering with shallow and its construction method.Technical scheme is as follows：For building the rectangular steel pipe support system of underground engineering with shallow, including rectangular steel pipe, turning steel pipe, leg steel pipe, welding steel and closure steel plate, the rectangular steel pipe, turning steel pipe, leg steel pipe are equipped with flange plate, and the end point of the flange plate is equipped with lock；The flange plate of the rectangular steel pipe is symmetricly set on its both sides, and the flange plate of the turning steel pipe is orthogonal to be arranged on its adjacent two sides, and the flange plate of the leg steel pipe is set on its top face.Provided by the present invention for building the rectangular steel pipe support system and its construction method of underground engineering with shallow, solve the problems, such as that adjacent steel pipe junction stress is weak, it is necessary to set up a large amount of temporary support protection overall structure stabilities in existing pipe curtain structure.
Description
Technical field
The invention belongs to underground engineering support technologies, and in particular to for building the rectangular steel pipe supporting of underground engineering with shallow
System and its construction method.
Background technology
A kind of form of the subway as track traffic, due to having many advantages, such as that freight volume is big, environmentally friendly, comfortable, convenient, fast,
It is increasingly becoming the public transport form first developed in each city.As urban population is more and more intensive, heavy construction is in city
The heart is more and more, and cut and cover method influences the environment on station periphery huge, it is impossible to meet the requirement of people.In order to reduce to peripheral ring
The influence in border, pipe-roofing method gradually grow up.Pipe-roofing method is based on pipe-jacking technology, in proposed underground structure four
It heads into steel pipe week, has fore shaft between steel pipe, the penetration concrete in steel pipe forms pipe curtain supporting construction.Pipe-roof method can be reduced
Caused earth's surface deformation, reduces the influence to surrounding building during excavation, close especially suitable for shallow embedding big cross section weak soil, building
The high engineering of collection, environmental protection requirement.In traditional pipe-roofing method, lock connection is relied solely between adjacent pipe curtain steel pipe,
Lateral stiffness and the bearing capacity for causing entire support system are all very weak；NTR engineering methods (new pipe-roofing method) are strengthened between adjacent steel pipe
Connection so that the lateral stiffness and bearing capacity of support system are promoted, but NTR engineering methods are mostly domes, system
Space availability ratio is very low.
The content of the invention
The present invention provides a kind of rectangular steel pipe support system and its construction method for being used to build underground engineering with shallow, solves
Adjacent steel pipe junction stress is weak, it is necessary to set up a large amount of temporary supports protection overall structure stabilities in existing pipe curtain structure
The problem of.
Technical scheme is as follows：
For building the rectangular steel pipe support system of underground engineering with shallow, including rectangular steel pipe, turning steel pipe, leg steel
Pipe, welding steel and closure steel plate, the rectangular steel pipe, turning steel pipe, leg steel pipe are equipped with flange plate, the flange plate
End point is equipped with lock；The flange plate of the rectangular steel pipe is symmetricly set on its both sides, and the flange plate of the turning steel pipe is mutual
It is vertically set on its adjacent two sides, the flange plate of the leg steel pipe is set on its top face；Leg steel pipe is placed in ground
Ji Chu, multiple rectangular steel pipes are placed on leg steel pipe form collateral support successively vertically, leg steel pipe and rectangular steel pipe and rectangle
It is interlocked between steel pipe and rectangular steel pipe by the lock；Lead between the collateral support rectangular steel pipe of upper end and turning steel pipe
The lock is crossed to be interlocked；Horizontal connection forms ceiling support, rectangular steel pipe and square to multiple rectangular steel pipes together successively
It is interlocked between shape steel pipe by the lock；Ceiling is supported between the rectangular steel pipe of both sides and turning steel pipe by described
Lock is interlocked；The welding steel is angle block of right angle, and one is welded on by the welding steel at the lock occlusion
It rises；Ceiling is supported forms pipe curtain with two collateral supports；The end point installation institute of the rectangular steel pipe, turning steel pipe and leg steel pipe
Closure steel plate is stated, the closure steel plate is equipped with filling concrete hole, is perfused and mixes into pipe curtain by the filling concrete hole
Solidifying soil forms support system.
The rectangular steel pipe support system for being used to build underground engineering with shallow, preferred embodiment is the closure steel
Plate top is equipped with secondary grouting hole.
The rectangular steel pipe support system for being used to build underground engineering with shallow, preferred embodiment is the leg steel
The bottom surface of pipe is equipped with reserved injected hole.
The rectangular steel pipe support system for being used to build underground engineering with shallow, preferred embodiment is the rectangle steel
Pipe, turning steel pipe and leg steel pipe high 0.9m-1.2m, wide 0.7-0.9m.
The rectangular steel pipe support system for being used to build underground engineering with shallow, preferred embodiment is the flange plate
Wide 0.3m-0.4m, thick 0.01m；The lock height 0.02m.
The rectangular steel pipe support system for being used to build underground engineering with shallow, preferred embodiment is the welding steel
Plate is equipped with square step, the square step and the lock place of occlusion cooperation.
The rectangular steel pipe support system for being used to build underground engineering with shallow, preferred embodiment is the welding steel
Plate wide 0.1m, thick 0.02m, long 1m.
The above-mentioned construction method for being used to build the rectangular steel pipe support system of underground engineering with shallow, includes the following steps：
1) excavating shaft builds operation platform, successively jacking leg steel pipe, rectangular steel pipe and turning steel pipe；In jacking
The steel duct earthwork is excavated in the process；
2) by the reserved injected hole of leg steel pipe, grouting and reinforcing is carried out to the lower part soil body, enhancing support system lower part
Foundation bearing capacity；
3) excavate between rectangular steel pipe, between rectangular steel pipe and turning steel pipe and the soil between leg steel pipe and rectangular steel pipe
Side；After soil is removed, welded together at the lock occlusion by the welding steel；
4) rectangular steel pipe, the end point welding closure steel pipe of leg steel pipe and turning steel pipe, pass through the filling concrete
Concrete perfusion in Kong Xiangguan acts；If it find that pipe curtain internal upper part filling concrete leakiness, after being carried out by secondary grouting hole
Phase secondary grouting；
5) after concrete reaches design strength, the soil body below pipe curtain is excavated, starts to perform the agent structure of underground engineering.
Beneficial effects of the present invention are：
1st, the present invention is connected with each other using the rectangular steel pipe with flange plate, and junction is welded by welding steel, is shown
Work improves lateral stiffness and bearing capacity, when excavating the soil body below pipe curtain, without setting up substantial amounts of support, reduces engineering and makes
Valency shortens the duration；The shortcomings that overcoming traditional pipe-roofing method only leans on fore shaft to connect, and junction stress is weaker；It solves existing
Adjacent steel pipe junction stress is weak, it is necessary to set up asking for a large amount of temporary support protection overall structure stabilities in pipe curtain structure
Topic.
2nd, for pipe curtain structure of the invention using rectangular section, top is planar structure, compared with domes section, significantly
The utilization rate for improving the underground space.
3rd, the present invention is that using lateral connection bolt, without carrying out drilling operation in steel duct, itself does not form one
Closed structure, water-stagnating effect are good.It is easy to operate, simplify working procedure.
Description of the drawings
Fig. 1 is for building the rectangular steel pipe support system structure diagram of underground engineering with shallow；1 is ground in figure；
Fig. 2 is concrete filled rectangular steel tube members schematic diagram；
Fig. 3 is leg steel-tube construction schematic diagram；
Fig. 4 is turning steel-tube construction schematic diagram；
Fig. 5 is welding steel sectional view；
Fig. 6 is the schematic diagram welded together at lock occlusion by welding steel；
Fig. 7 is the schematic diagram that closure steel plate is welded on rectangular steel pipe end point.
Specific embodiment
As shown in figs. 1-7, it is a kind of for building the rectangular steel pipe support system of underground engineering with shallow, including rectangular steel pipe 3,
Turning steel pipe 5, leg steel pipe 4, welding steel 10 and closure steel plate 11, the rectangular steel pipe 3, turning steel pipe 5, leg steel pipe 4
Flange plate 6 is equipped with, the end point of the flange plate 6 is equipped with lock 7；The rectangular steel pipe 3, turning steel pipe 5 and leg steel pipe 4
High 1m, wide 0.8m；Flange plate 6 the width 0.4m, thick 0.01m；7 height 0.02m of the lock；The welding steel 10 is wide
0.1m, thick 0.02m, long 1m；The flange plate 6 of the rectangular steel pipe 3 is symmetricly set on its both sides, the edge of a wing of the turning steel pipe 5
Plate 6 is orthogonal to be arranged on its adjacent two sides, and the flange plate 6 of the leg steel pipe 4 is set on its top face；The leg
The bottom surface of steel pipe 4 is equipped with reserved injected hole；Leg steel pipe 4 is placed at ground 2, and multiple rectangular steel pipes 3 are placed in vertically successively
Collateral support is formed on leg steel pipe 4, by described between leg steel pipe 4 and rectangular steel pipe 3 and rectangular steel pipe 3 and rectangular steel pipe 3
Lock 7 is interlocked；It is interlocked between the collateral support rectangular steel pipe 3 of upper end and turning steel pipe 5 by the lock 7；
Horizontal connection forms ceiling support to multiple rectangular steel pipes 3 together successively, by described between rectangular steel pipe 3 and rectangular steel pipe 3
Lock 7 is interlocked；Ceiling supports and is engaged in one by the lock 7 between the rectangular steel pipe 3 of both sides and turning steel pipe 5
It rises；The welding steel 10 is equipped with square step, the square step and the cooperation of 7 places of occlusion of the lock, the lock
It detains and is welded together at 7 occlusions by the welding steel 10；Ceiling is supported forms pipe curtain with two collateral supports；The rectangle steel
The end point installation closure steel plate 11 of pipe 3, turning steel pipe 5 and leg steel pipe 4, the closure steel plate 11 are equipped with concrete
Fill orifice 12,11 top of the closure steel plate are equipped with secondary grouting hole 13, are filled by the filling concrete hole 12 into pipe curtain
It notes concrete and forms support system.
The above-mentioned construction method for being used to build the rectangular steel pipe support system of underground engineering with shallow, includes the following steps：
1) excavating shaft builds operation platform, successively jacking leg steel pipe 4, rectangular steel pipe 3 and turning steel pipe 5；In jacking
During excavate the steel duct earthwork；
2) by the reserved injected hole of leg steel pipe 4, grouting and reinforcing is carried out to the lower part soil body, enhancing support system lower part
2 bearing capacity of ground；
3) excavate between rectangular steel pipe 3, between rectangular steel pipe 3 and turning steel pipe 5 and leg steel pipe 4 and rectangular steel pipe 3 it
Between the earthwork；After soil is removed, welded together at 7 occlusions of the lock by the welding steel 10；
4) rectangular steel pipe 3, the end point welding closure steel pipe 11 of leg steel pipe 4 and turning steel pipe 5, pass through the concrete
The concrete perfusion into pipe curtain of fill orifice 12；If it find that pipe curtain internal upper part filling concrete leakiness, passes through secondary grouting hole
13 carry out later-stage secondary slip casting；
5) after concrete reaches design strength, the soil body below pipe curtain is excavated, starts to perform the agent structure of underground engineering.
Claims (8)
1. for building the rectangular steel pipe support system of underground engineering with shallow, which is characterized in that including rectangular steel pipe, turning steel
Pipe, leg steel pipe, welding steel and closure steel plate, the rectangular steel pipe, turning steel pipe, leg steel pipe are equipped with flange plate, institute
The end point for stating flange plate is equipped with lock；The flange plate of the rectangular steel pipe is symmetricly set on its both sides, the turning steel pipe
Flange plate is orthogonal to be arranged on its adjacent two sides, and the flange plate of the leg steel pipe is set on its top face；Leg steel
Pipe is placed at ground, and multiple rectangular steel pipes are placed on leg steel pipe form collateral support successively vertically, leg steel pipe and rectangle
It is interlocked between steel pipe and rectangular steel pipe and rectangular steel pipe by the lock；The rectangular steel pipe of collateral support upper end and turning
It is interlocked between steel pipe by the lock；Horizontal connection forms ceiling support, square to multiple rectangular steel pipes together successively
It is interlocked between shape steel pipe and rectangular steel pipe by the lock；Rectangular steel pipe and the turning steel pipe of ceiling support both sides it
Between by it is described lock be interlocked；Welded together at the lock occlusion by the welding steel；Ceiling support with
Two collateral supports form pipe curtain；The end point of the rectangular steel pipe, turning steel pipe and leg steel pipe is installed by the closure steel plate, institute
It states closure steel plate and is equipped with filling concrete hole, concrete perfusion forms supporting system into pipe curtain by the filling concrete hole
System.
2. the rectangular steel pipe support system according to claim 1 for being used to build underground engineering with shallow, which is characterized in that institute
It states closure steel plate top and is equipped with secondary grouting hole.
3. the rectangular steel pipe support system according to claim 1 for being used to build underground engineering with shallow, which is characterized in that institute
The bottom surface for stating leg steel pipe is equipped with reserved injected hole.
4. the rectangular steel pipe support system according to claim 1 for being used to build underground engineering with shallow, which is characterized in that institute
State rectangular steel pipe, turning steel pipe and leg steel pipe high 0.9m-1.2m, wide 0.7-0.9m.
5. the rectangular steel pipe support system according to claim 1 for being used to build underground engineering with shallow, which is characterized in that institute
State flange plate wide 0.3m-0.4m, thick 0.01m；The lock height 0.02m.
6. the rectangular steel pipe support system according to claim 1 for being used to build underground engineering with shallow, which is characterized in that institute
Welding steel is stated equipped with square step, the square step and the lock place of occlusion cooperation.
7. the rectangular steel pipe support system according to claim 6 for being used to build underground engineering with shallow, which is characterized in that institute
State welding steel wide 0.1m, thick 0.02m, long 1m.
8. the construction party for being used to build the rectangular steel pipe support system of underground engineering with shallow as described in one of claim 1-7
Method, which is characterized in that include the following steps：
1) excavating shaft builds operation platform, successively jacking leg steel pipe, rectangular steel pipe and turning steel pipe；In the process of jacking
The middle excavation steel duct earthwork；
2) by the reserved injected hole of leg steel pipe, grouting and reinforcing, the ground of enhancing support system lower part are carried out to the lower part soil body
Bearing capacity；
3) excavate between rectangular steel pipe, between rectangular steel pipe and turning steel pipe and the earthwork between leg steel pipe and rectangular steel pipe；
After soil is removed, welded together at the lock occlusion by the welding steel；
4) the end point welding closure steel pipe of rectangular steel pipe, leg steel pipe and turning steel pipe, by the filling concrete hole to
Concrete perfusion in pipe curtain；If it find that pipe curtain internal upper part filling concrete leakiness, the later stage two is carried out by secondary grouting hole
Secondary slip casting；
5) after concrete reaches design strength, the soil body below pipe curtain is excavated, starts to perform the agent structure of underground engineering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711293745.1A CN108049891A (en) | 2017-12-08 | 2017-12-08 | For building the rectangular steel pipe support system of underground engineering with shallow and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711293745.1A CN108049891A (en) | 2017-12-08 | 2017-12-08 | For building the rectangular steel pipe support system of underground engineering with shallow and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108049891A true CN108049891A (en) | 2018-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711293745.1A Pending CN108049891A (en) | 2017-12-08 | 2017-12-08 | For building the rectangular steel pipe support system of underground engineering with shallow and its construction method |
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| CN (1) | CN108049891A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653772A (en) * | 2019-02-03 | 2019-04-19 | 东北大学 | A kind of shallow buried tube curtain support system and its construction method |
| CN113279787A (en) * | 2021-05-24 | 2021-08-20 | 苏州大学 | Construction method for building pipe curtain supporting structure of ultra-shallow buried large-section underground excavation subway station |
| CN113279779A (en) * | 2021-05-24 | 2021-08-20 | 苏州大学 | Pipe curtain supporting construction based on prestressing force steel strand wires and annular hasp are connected |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2546263A2 (en) * | 1981-11-17 | 1984-11-23 | Matiere Marcel | Method for obtaining hollow structures of large cross-section such as pipes, and structures thus produced |
| CN102562097A (en) * | 2012-01-30 | 2012-07-11 | 山东大学 | Three-dimensional asymmetrical supporting system |
| CN105464675A (en) * | 2016-02-01 | 2016-04-06 | 北京首尔工程技术有限公司 | Novel surface contact pipe curtain structure and construction method thereof |
-
2017
- 2017-12-08 CN CN201711293745.1A patent/CN108049891A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2546263A2 (en) * | 1981-11-17 | 1984-11-23 | Matiere Marcel | Method for obtaining hollow structures of large cross-section such as pipes, and structures thus produced |
| CN102562097A (en) * | 2012-01-30 | 2012-07-11 | 山东大学 | Three-dimensional asymmetrical supporting system |
| CN105464675A (en) * | 2016-02-01 | 2016-04-06 | 北京首尔工程技术有限公司 | Novel surface contact pipe curtain structure and construction method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653772A (en) * | 2019-02-03 | 2019-04-19 | 东北大学 | A kind of shallow buried tube curtain support system and its construction method |
| CN109653772B (en) * | 2019-02-03 | 2020-07-21 | 东北大学 | Shallow buried pipe curtain supporting system and construction method thereof |
| CN113279787A (en) * | 2021-05-24 | 2021-08-20 | 苏州大学 | Construction method for building pipe curtain supporting structure of ultra-shallow buried large-section underground excavation subway station |
| CN113279779A (en) * | 2021-05-24 | 2021-08-20 | 苏州大学 | Pipe curtain supporting construction based on prestressing force steel strand wires and annular hasp are connected |
| CN113279787B (en) * | 2021-05-24 | 2024-05-14 | 苏州大学 | Construction method for constructing pipe curtain supporting structure of ultra-shallow buried large-section underground excavation subway station |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |
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| RJ01 | Rejection of invention patent application after publication |