CN209263259U - Rectangular top pipe tunneling construction top iron - Google Patents
Rectangular top pipe tunneling construction top iron Download PDFInfo
- Publication number
- CN209263259U CN209263259U CN201821825618.1U CN201821825618U CN209263259U CN 209263259 U CN209263259 U CN 209263259U CN 201821825618 U CN201821825618 U CN 201821825618U CN 209263259 U CN209263259 U CN 209263259U
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- iron
- rectangular
- top iron
- shaped
- tunneling construction
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Abstract
The utility model discloses a kind of rectangular top pipe tunneling construction top iron, it is to apply using the jack power conducting structure in rectangular top pipe driving rectangular cross section constructing tunnel, it is characterized by: it includes U-shaped top iron and circular top iron, the piston of several jack is fixed on the iron of the U-shaped top by welding or bolted mode, and welding is crossed by the circular top Tie Tong or bolted mode is fixed on the iron of the U-shaped top.The rectangular top pipe tunneling construction of the utility model improves the connection type of top iron and jack with top iron, to substantially increase the efficiency and quality of construction, saving is the construction time, be should be widely promoted.
Description
Technical field
The utility model belongs to the realm of building construction, and in particular to a kind of rectangular top pipe tunneling construction top iron.
Background technique
The architectural engineerings such as pipe gallery, subway work, street crossing culvert are carried out in city, if using the side of open-cut
Formula, it will usually be related to situations such as removing, closing a road to traffic, the construction period is uncontrollable, expense is high, environment influences greatly.In view of it is above-mentioned because
Element, thus construction operation is carried out by the way of push-bench driving, duration, save the cost can be greatly shortened.But in reality
In work progress, it has been found that there is also numerous improvable places during push-bench tunneling construction: before 1. lifting tube couplings, needing
Top iron is first hung out, tube coupling is then hung in, the lifting operation for completing a tube coupling usually requires 4-5 hour；2. excavating face pressure
Power is unstable, easily leads to the unstability of excavation surface, causes surface subsidence and protuberance；3. the soil excavated passes through trolley to outlet
Out, it takes a long time, is easy to produce the case where push-bench waits.
Utility model content
In order to overcome the above problem 1, the utility model provides a kind of improved, more efficient rectangular top pipe tunneling construction
With top iron.
The technical solution of the utility model is to provide a kind of rectangular top pipe tunneling construction top iron, is applied using square
Shape push pipe tunnels the jack power conducting structure in rectangular cross section constructing tunnel comprising U-shaped top iron and circular top iron, several
The piston of the jack is fixed on the iron of the U-shaped top by welding or bolted mode, circular top Tie Tong mistake
Welding or bolted mode are fixed on the iron of the U-shaped top.
Preferably, U-shaped top iron and circular top iron are formed by iron casting.
Preferably, the thickness of U-shaped top iron and circular top iron ratio is 2:1~4:1.
Preferably, U-shaped top iron is opening up.
Preferably, the end face setting of the U-shaped top iron side can hold the groove of the circular top iron, circular top iron portion
Divide and is fastened in the groove.
Preferably, several studs are buried on the iron of the U-shaped top, are correspondingly arranged on several light on the circular top iron
Hole, the stud are linked together the circular top iron and the ferropexy of U-shaped top by nut after passing through the unthreaded hole.
Preferably, it is preset with several reinforcing columns outstanding on the iron of the U-shaped top, is correspondingly arranged on the circular top iron
Several accommodate the blind hole for strengthening column.
Preferably, the counterbore for accommodating the nut is provided on the circular top iron.
The rectangular top pipe tunneling construction of the utility model improves the connection type of top iron and jack with top iron, thus greatly
The efficiency and quality of construction are improved greatly, and saving is the construction time, be should be widely promoted.
Detailed description of the invention
Fig. 1 is the schematic illustration of rectangular top pipe tunneling construction；
Fig. 2 is the structural schematic diagram of the top iron of the best embodiment of the utility model；
Fig. 3 is the cross-sectional structure schematic diagram of tube coupling；
Fig. 4 is the sectional structure schematic diagram of push-bench working condition；
Fig. 5 is the decomposition texture schematic diagram of the top iron of the best embodiment of the utility model.
Specific embodiment
Specific embodiment of the present utility model is described in further detail below.
As shown in Figures 1 to 5, rectangular top pipe tunneling construction comprising following steps:
Determine rectangular cross section tunnel line axis；
It is arranged and meets starting well 4 and received well (not shown) that section push pipe tunnels requirement, when starting well 4 is set, is beginning
It sends out and leans on 8 after steel is set at the rear end face of well 4, for supporting the rear top jack 7 of push-bench 14；
When push-bench 14 is tunneled along tunnel line axis, splice tube coupling 1 and jacking tube coupling 1 in starting well 4；
When push-bench 14 reaches received well, tube coupling 1 is separated with push-bench 14, tunnel holing through.
As a preferred option, multiple rear top jack 7 are rear to push up jack 7 along the u-shaped setting in the two sides of tube coupling 1
Piston tip be fixedly connected with top iron on, top iron moved forward or back with piston.Wherein, top iron include U-shaped top iron 15 (also known as
U-shaped top iron) and circular top iron 16 (also known as square shape top iron), they are formed by iron casting, and wherein U-shaped top iron 15 is logical
Cross welding or bolted mode be fixed on after push up jack 7 piston on, circular top iron 16 by welding or be bolted
Mode be fixed on U-shaped top iron 15, the setting track 10 mobile for top iron in starting well 4.It can hang in avoid in crane 2
Before tube coupling 1, the operation of top iron is first hung out, the time of operation is substantially reduced.The thickness of U-shaped top iron and circular top iron ratio is 2:1
~4:1, preferably 3:1, by experimental verification repeatedly, above-mentioned thickness ratio makes mechanical property best, avoids the occurrence of unbalance stress
Situation improves the service life of top iron.In Fig. 5, a kind of top iron construction being connected by screw bolts is disclosed, relative to welding
Contact method, can Reusability, convenient disassembly is more efficient, longer life expectancy.In Fig. 5, in order to strengthen connection, top iron construction is adopted
With such as flowering structure:
Several studs 24 are buried on U-shaped top iron 15, several unthreaded holes 26, stud 24 are correspondingly arranged on circular top iron 16
Circular top iron 16 and U-shaped top iron 15 are fixed together by nut 28 after unthreaded hole 26.It is preset on U-shaped top iron 15
Several reinforcing columns 30 outstanding are correspondingly arranged on the blind hole (not shown) that columns 30 are strengthened in several receivings on circular top iron 16.
The counterbore (not shown) of receiving nut (not shown) is provided on circular top iron 16.The end face setting of 15 side of U-shaped top iron can be held
The groove 36 of circular top iron, 15 part of circular top iron are fastened in groove 36.Using the above structure, so that U-shaped top iron 15 and ring
Shape top iron 16 can be securely attached together, and avoided loosening during lifting, considerably increased the safety of construction.
Setting rotary churning pile or mixing pile are in the surrounding wall of starting well 4 to reinforce starting well 4.
Tube coupling 1 uses prefabricated rectangle reinforced concrete structure, and 1 interface of tube coupling uses F font socket fitting type structure, and tube coupling 1 is hung
Before entering starting well 4, coated with paraffin layer on first wall on the outside, and carry out being baked in order that paraffin layer infiltrates and is attached to tube coupling 1
Surface, to reduce frictional force when 1 jacking of tube coupling.
Push-bench 14 includes cutterhead 20, main top equipment 21, to the conveying pump of excavation surface conveying muddy water, when ground water pressure and digging
When pick face soil pressure is more than threshold value, reduces the revolving speed of conveying pump otherwise then improve the revolving speed of conveying pump so that it is guaranteed that cutterhead works
When pressure within the scope of required pressure, thus avoid push-bench 14 deviate situations such as, improve the safety of construction.
Push-bench 14 further includes excluding dregs, rubble and regulation soil pressure storehouse pressure, realizes the helical feed of earth pressure balance
Machine 22,14 rear of push-bench are provided with the blender 11 that the dregs etc. of screw conveyor discharge is added water and stirred into mud,
Mud conveying pipeline 3 of the connection blender 11 to convey mud outward is provided in tunnel.It avoids traditional use trolley round-trip
The arrangement and method for construction of soil is transported, can greatly save the construction time.
It is provided with the injected hole 17 of perforation on 1 side wall of tube coupling, injected hole 17 connects grouting system 18, when 1 jacking of tube coupling, note
Slurry system 18 injects thixotropic slurry to outside the outer wall of tube coupling 1 to form mud lubrication set, to reduce top by injected hole 17
Into when frictional resistance, thixotropic slurry mixes by bentonite, CMC, soda ash and water.After whole 1 jackings of tube coupling, slip casting
System injects cement injection to outside the outer wall of tube coupling 1 by part injected hole, and excludes thixotropic slurry outward by injected hole, with
With cement injection displacement thixotropic slurry, to consolidate 1 outer wall surrounding soil of tube coupling.It is completed with cement injection displacement thixotropic slurry
Afterwards, the tube coupling 1 at starting well 4 and received well pours well connector with the link position of structure inwall respectively, carries out to tube coupling 1
Inner waterproofing processing.
There are also common structures in figure: distribution box 5, station 6, apical ring 9, native case 12, correction oil cylinder 13.
Above embodiments are only the one such embodiment of the utility model, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (8)
1. a kind of rectangular top pipe tunneling construction top iron is applied in using rectangular top pipe driving rectangular cross section constructing tunnel
Jack power conducting structure, it is characterised in that: it includes U-shaped top iron and circular top iron, the piston of several jack
It is fixed on the iron of the U-shaped top by welding or bolted mode, welding or bolted is crossed by the circular top Tie Tong
Mode is fixed on the iron of the U-shaped top.
2. rectangular top pipe tunneling construction according to claim 1 top iron, it is characterised in that: U-shaped top iron and annular
Top iron is formed by iron casting.
3. rectangular top pipe tunneling construction according to claim 1 top iron, it is characterised in that: U-shaped top iron and annular
The thickness ratio for pushing up iron is 2:1~4:1.
4. rectangular top pipe tunneling construction according to claim 1 top iron, it is characterised in that: the opening of U-shaped top iron
Upward.
5. rectangular top pipe tunneling construction according to claim 1 top iron, it is characterised in that: the U-shaped top iron side
The groove that can hold the circular top iron is arranged in end face, and circular top iron part is fastened in the groove.
6. rectangular top pipe tunneling construction according to claim 5 top iron, it is characterised in that: buried on the iron of the U-shaped top
Several studs, several unthreaded holes are correspondingly arranged on the circular top iron, and the stud passes through nut after passing through the unthreaded hole
The circular top iron and the ferropexy of U-shaped top are linked together.
7. rectangular top pipe tunneling construction according to claim 6 top iron, it is characterised in that: preset on the iron of the U-shaped top
There are several reinforcing columns outstanding, several are correspondingly arranged on the circular top iron and accommodates the blind hole for strengthening column.
8. rectangular top pipe tunneling construction according to claim 7 top iron, it is characterised in that: be arranged on the circular top iron
There is the counterbore for accommodating the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821825618.1U CN209263259U (en) | 2018-11-07 | 2018-11-07 | Rectangular top pipe tunneling construction top iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821825618.1U CN209263259U (en) | 2018-11-07 | 2018-11-07 | Rectangular top pipe tunneling construction top iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209263259U true CN209263259U (en) | 2019-08-16 |
Family
ID=67554128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821825618.1U Expired - Fee Related CN209263259U (en) | 2018-11-07 | 2018-11-07 | Rectangular top pipe tunneling construction top iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209263259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273906A (en) * | 2020-02-20 | 2021-08-20 | 九阳股份有限公司 | Food processing machine |
-
2018
- 2018-11-07 CN CN201821825618.1U patent/CN209263259U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273906A (en) * | 2020-02-20 | 2021-08-20 | 九阳股份有限公司 | Food processing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 Termination date: 20211107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |