CN109944595A - A kind of box culvert displacement pipe curtain construction method - Google Patents
A kind of box culvert displacement pipe curtain construction method Download PDFInfo
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- CN109944595A CN109944595A CN201910175305.9A CN201910175305A CN109944595A CN 109944595 A CN109944595 A CN 109944595A CN 201910175305 A CN201910175305 A CN 201910175305A CN 109944595 A CN109944595 A CN 109944595A
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- pipe curtain
- box culvert
- jacking
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- pipe
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- 238000010276 construction Methods 0.000 title claims abstract description 65
- 238000006073 displacement reactions Methods 0.000 title claims abstract description 24
- 230000001808 coupling Effects 0.000 claims abstract description 33
- 239000002689 soil Substances 0.000 claims abstract description 33
- 238000010168 coupling process Methods 0.000 claims abstract description 28
- 238000005859 coupling reactions Methods 0.000 claims abstract description 28
- 230000001360 synchronised Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000000034 methods Methods 0.000 claims description 14
- 238000004064 recycling Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005755 formation reactions Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000463 materials Substances 0.000 description 2
- 238000003908 quality control methods Methods 0.000 description 2
- 230000003014 reinforcing Effects 0.000 description 2
- 239000002699 waste materials Substances 0.000 description 2
- 210000000481 Breast Anatomy 0.000 description 1
- 210000001138 Tears Anatomy 0.000 description 1
- 241000519996 Teucrium chamaedrys Species 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reactions Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
Description
Technical field
The invention belongs to construction of underground tunnel technical fields, and in particular, to a kind of box culvert displacement pipe curtain construction method.
Background technique
In recent years, with the continuous propulsion of urbanization process, ground resource and can the restriction that is subject to of development space it is more next Bigger, therefore, the exploitation underground space has been in inexorable trend.In Urban Underground process of construction, the problem of encountering, is increasingly sophisticated.Example Such as, the various existing buildings such as busy urban road, existing railway, especially big cross section, shallow overburden underpass engineering are passed through It is increasing.Ground environment is required as a result, also increasingly strict.
The method for tunnel construction of existing buildings is worn under currently, mainly there is rectangular top tube method, pipe-roof method, pipe curtain-box culvert top Into method.Wherein, rectangular top tube method uses rectangular pipe jacking machine jacking construction identical with passage section size, until push-bench whole It is all installed into received well and tube coupling, ultimately forms complete underpass.This method is due to being limited by rectangular top Pipe machine, it is poor to adaptability such as tunnel cross-section size, shapes, and it is not suitable for big cross section, the construction of shallow earthing.Pipe-roof method be first with Pipe curtain constructs to form Pipe curtain fore-poling reinforcing, then excavates side in pipe curtain inner edge and supports, constructs internal structure paragraph by paragraph, and gradually tear open Except pipe curtain inner support, complete underpass is ultimately formed.Pipe-roof method needs the manual work in pipe curtain due to forming pipe backstage, Safety is low, and the steel pipe for forming pipe curtain can not recycle, and construction cost is excessively high.Pipe curtain-box culvert advancing method is first with pipe Curtain construction forms Pipe curtain fore-poling reinforcing, then the jacking box culvert inside pipe curtain, pushes up when digging, and it is logical to ultimately form complete underground Road, the engineering method are also required to the manual work in pipe curtain, and safety is low, and since the steel pipe for forming pipe curtain can not also reuse, Construction cost is high.
Summary of the invention
For technical problem as described above, the present invention is directed to propose a kind of box culvert displacement pipe curtain construction method, the construction Method can effectively control surface subsidence and can adapt to the shallow earthing of big cross section, not limited by cross dimensions, is affected by environment Small, equipment and material high recycling rate.In addition, the construction method can be avoided by box culvert displaced soil mass in existing facility The digging operation of lower section, and the Fully-mechanized operation outside tunnel, to effectively increase the security performance of construction operation.
For this purpose, proposing a kind of box culvert displacement pipe curtain construction method according to the present invention, comprising the following steps:
Step 1: the starting well for placing jacking device is constructed respectively in built in advance channel two sides, and is used for reception pipe The received well of the soil body in curtain and the pipe curtain；
Step 2: installing pipe curtain machine jacking mechanism and pipe curtain machine in the starting well are filled by the pipe curtain machine jacking Set pipe curtain machine described in successively jacking, and successively continuous jacking tube coupling to form the pipe curtain of required standard；
Step 3: installation box culvert jacking mechanism；
Step 4: box culvert is constructed, and first section box is contained and is connect with pipe curtain end face；
Step 5: start the box culvert advancing device successively box culvert described in jacking successively to eject the tube coupling and dismantle quilt The tube coupling of ejection is simultaneously unearthed；
Step 6: repeating step 4 and step 5, until removing all tube couplings, forms channel；
Wherein, the one or both sides setting antifriction plate contacted with the soil body on the outside of the pipe curtain machine and the tube coupling, institute It states pipe curtain machine and drives the synchronous jacking forward of the antifriction plate.
In a preferred embodiment, flange is used between the longitudinally adjacent tube coupling in the built in advance channel Bolt forms connection, horizontally forms connection using lock between the adjacent tube coupling.
In a preferred embodiment, the pipe curtain is horizontally formed as " mouth " font pipe curtain or " door " font pipe Curtain, and driven in the box culvert and keep the soil body in pipe curtain motionless in the pipe curtain jack-in process.
In a preferred embodiment, the pipe curtain is horizontally formed as tunneling boring pipe curtain or the pipe of other standards Curtain.
In a preferred embodiment, the box culvert constructs mode using cast-in-place, on-site consolidation or integral hoisting Mode is constructed.
In a preferred embodiment, the end face of the box culvert and outer rim be arranged to the end face of the pipe curtain and Outer rim is adapted connection.
In a preferred embodiment, in step 3, the pipe curtain machine jacking mechanism is first removed, then by the box culvert Jacking mechanism is mounted in the starting well.
In a preferred embodiment, the box culvert advancing device is mounted in the received well, and in jacking institute The box culvert is constructed while stating pipe curtain machine.
In a preferred embodiment, built in advance channel two sides are provided with earth-retaining device.
In a preferred embodiment, the pipe curtain machine and the box culvert are all made of measurement correction system in jack-in process System carries out remote monitoring and administration.
Compared with prior art, it is in place of advantages of the present invention:
Box culvert displacement pipe curtain construction method provided by the invention can effectively control surface subsidence, suitable for passing through existing structure Build object.The construction method forms " mouth " font pipe curtain by the machine jacking of small rectangular pipe curtain, and " mouth " font pipe curtain is to the front soil body Play advance support, in the construction process, make box culvert promote the disturbance very little to the soil body, to ground structures and periphery Environment influences small.Meanwhile the anti-back soil antifriction plate by being arranged in outside pipe curtain is isolated by the soil body with pipe curtain, box culvert, is had very Strong anti-back soil ability, security performance are high.The construction method avoids the digging below existing facility by box culvert displaced soil mass Operation is dug, so that the Fully-mechanized operation outside tunnel, effectively increases the security performance of construction operation, and the dregs displaced is not Through sediment improvement, waste is pollution-free.In addition, cost is relatively low for rectangular tube curtain machine equipment, and it is suitable for various different section sizes, square Shape tube coupling is recyclable, high recycling rate.The construction method wide adaptability, intrinsic construction equipment are not limited by tunnel cross-section size System, section is adaptable, especially adapts to especially big tunnel cross-section construction, is not influenced by thickness of earth-fill cover, be suitable for ultra-shallow earth-covered construction. The construction method is constructed for shallow earthing, will not cause surface subsidence, good engineering quality, and jacking force needed for box culvert is relatively It is small, it is easy to Engineering Quality Control.
Detailed description of the invention
The present invention will be described below with reference to accompanying drawings.
Fig. 1 shows the longitudinal sectional view in the channel that box culvert displacement pipe curtain construction method according to the present invention is formed.
Fig. 2 shows the longitudinal sectional view of starting well and received well.
Fig. 3 shows the setting position of earth-retaining device.
Fig. 4 shows the pipe curtain machine jacking mechanism and pipe curtain machine being mounted in starting well.
Fig. 5 and Fig. 6 shows that pipe curtain machine carries out jacking construction and forms the work progress of pipe curtain.
Fig. 7 is the cross-sectional view of A-A section along Fig. 6 in one embodiment of pipe curtain.
Fig. 8 is the A-A cross-section cutaway view along Fig. 6 in another embodiment of pipe curtain.
Fig. 9 is the A-A cross-section cutaway view along Fig. 6 in another embodiment of pipe curtain.
Figure 10 to Figure 12 shows box culvert displacement pipe curtain to form the work progress in channel.
In this application, all attached drawings are schematical attached drawing, are merely to illustrate the principle of the present invention, and not by real Border ratio is drawn.
Specific embodiment
The present invention is introduced in detail below by attached drawing.
In this application, it should be noted that for convenience of discussing, it is (i.e. pre- that the horizontal direction in Fig. 1 is known as longitudinal direction Build the extending direction in channel), the direction that will be perpendicular to the paper of Fig. 1 is known as transverse direction (i.e. towards or away from built in advance channel Direction).
Fig. 1 schematically shows the longitudinal direction in the channel 100 that box culvert displacement pipe curtain construction method according to the present invention is formed Cross-sectional view.Box culvert displacement pipe curtain construction method according to the present invention needs to build existing according to the actual demand of engineering ground Channel 100 is constructed in the lower section for building object 101.Firstly, starting well 110 and received well 120 are constructed in the both ends in built in advance channel respectively.Such as Shown in Fig. 2, starting well 110 and received well 120 construct the both ends in built in advance channel respectively, and are Vertical Well.Starting well 110 is used In the workplace as jacking device, received well 120 is for the soil body in reception pipe curtain 104 (see Fig. 6) and pipe curtain 104 102。
According to the present invention, earth-retaining device 130 is built at built in advance channel both ends.As shown in figure 3, earth-retaining device 130 divides It is not arranged in starting well 110 and received well 120 and originates side and receiving side in built in advance channel.In jacking device jacking Cheng Zhong, earth-retaining device 130 can effectively prevent the soil body to collapse, to improve the security performance of construction.
During practice of construction, after building earth-retaining device 130, the installing pipe curtain machine jacking mechanism in starting well 110 140.As shown in figure 4, pipe curtain machine jacking mechanism 140 is mounted on the bottom of starting well 110.Pipe curtain machine jacking mechanism 140 installs Bi Hou, the installing pipe curtain machine 150 on pipe curtain machine jacking mechanism 140.In one embodiment, Guan Muji 150 uses rectangular tube curtain Machine.Before jacking construction, pipe curtain machine 150 is debugged so that it has the condition smoothly tunneled.
In jacking construction, start pipe curtain machine jacking mechanism 140 and pipe curtain machine 150.Fig. 5 and Fig. 6 shows pipe curtain machine 150 It carries out jacking construction and forms the work progress of pipe curtain 104.As shown in Figure 5 and Figure 6, Guan Muji 150 is in pipe curtain machine jacking mechanism Using principle successively jacking tube curtain machine 150 from bottom to top under the action of 140, and successively continuous jacking tube coupling 160 to be formed Need the pipe curtain 104 of standard.In one embodiment, tube coupling 160 uses steel pipe joint.Pipe curtain standard is determined according to live actual condition Fixed, in the embodiment shown in fig. 7, pipe curtain 104 is preferably horizontally formed as " mouth " font pipe curtain, can play and pay in advance in advance Shield effect, in the construction process, reduce disturbance of the propulsion of pipe curtain machine 150 to the soil body, and to ground structures and periphery Environment influences small.
According to the present invention, antifriction plate is set in the one or both sides contacted with the soil body in 160 outside of pipe curtain machine 150 and tube coupling 170.In work progress, Guan Muji 150 drives the synchronous jacking forward of antifriction plate 170.Antifriction plate 170 is arranged outside pipe curtain 104, energy Enough that pipe curtain 104 is isolated with the soil body 102, with the native ability of very strong anti-back, required main top power is smaller, and security performance is high.
In the present embodiment, connection is formed using flange bolt between the longitudinally adjacent tube coupling 160 in built in advance channel, Connection is horizontally formed using lock between adjacent tube coupling 160.In one embodiment, Guan Muji 150 is in jack-in process In, using measurement deviation-rectifying system.Pipe curtain machine 150 can be acquired fully automatically under the action of measuring deviation-rectifying system, be transmitted and place The three-dimensional data for managing measurement, to realize remote monitoring and administration.Hereby it is achieved that the automation of construction survey, intelligence, visual Change.According to the present invention, it is fitted large cross-section tunnel outer rim to form Large Tube curtain by using 150 jacking of midget tube curtain machine, from And limit it by construction tunnel cross dimensions, and can adapt to various rectangular cross sections.
Of course it is to be understood that it is a preferred embodiment that pipe curtain, which is formed as " mouth " font pipe curtain,.Fig. 8 and Fig. 9 shows pipe curtain The structure in other two embodiment.According to Practical Project place demand, as shown in Figure 8 and Figure 9, pipe curtain standard is also optional shape-selective At " door " font pipe curtain 204, the pipe curtain of the similar standard of tunneling boring pipe curtain 304 or other.
Figure 10 to Figure 12 shows that box culvert 190 replaces pipe curtain 104 to form the work progress in channel 100.According to the present invention, After pipe curtain 104 is constructed, the pipe curtain machine jacking mechanism 140 in starting well 110 is removed, and box culvert is installed in starting well 110 Jacking mechanism 180.Later, box culvert 190 is constructed in the side that originates in built in advance channel in starting well 110.Box culvert 190 is constructed Mode contains 190 and 104 end of pipe curtain using modes such as cast-in-place, on-site consolidation or integral hoistings, and by first section box according to actual condition Face connection.Later, the packet of starting box culvert jacking mechanism 180 and successively jacking box culvert 190, box culvert 190 and pipe curtain in antifriction plate 170 It wraps up in and is simultaneously advanced under effect, to successively eject tube coupling 160.As a result, the soil body 102 in pipe curtain 104 and pipe curtain 104 is from logical The other side in road 100 ejects.After pipe curtain 104 ejects a distance, the tube coupling 160 being ejected is dismantled, excavates simultaneously discharge pipe curtain The soil body 102 in 104.Repeat box culvert 190 construct and jacking box culvert 190 is to eject the construction procedure of pipe curtain 104, until All soil bodys 102 in whole tube couplings 160 and discharge pipe curtain 104 are removed, channel 100 is ultimately formed.
In the present embodiment, the end face of box culvert 190 and outer rim are arranged to be adapted with the end face of pipe curtain 104 and outer rim Connection, i.e., the end face of box culvert 190 matches with the end face of pipe curtain 104, and the outer rim of box culvert 190 matches with the outer rim of pipe curtain 104.
In one embodiment, box culvert 190 is in jack-in process, using measurement deviation-rectifying system.Box culvert 190 is rectified a deviation in measurement It can fully automatically be acquired under the action of system, transmit the three-dimensional data measured with processing, to realize remote monitoring and administration.By This, realizes the automation, intelligence, visualization of construction survey.
In practice of construction, when pipe curtain standard forms " mouth " font pipe curtain 104 or " door " font pipe curtain 204.In box culvert 190 drive the jackings of pipe curtain during, can choose keep pipe curtain in the soil body it is motionless, be ejected and then open to whole pipe curtains The soil body in digging through.In such manner, it is possible to make pipe curtain fast jacking, to reduce the whole jacking time of box culvert 190, box culvert 190 is improved Jacking efficiency.And when pipe curtain is horizontally formed as tunneling boring pipe curtain, during forming tunneling boring pipe curtain, in pipe curtain The soil body, which has been unearthed, to be finished.
Furthermore, it is to be understood that may be selected to construct box culvert 190 in the larger-size situation of and box culvert urgent in the duration In received well 120, i.e., before the formation of pipe curtain 104 receiving side in received well 120 construct simultaneously box culvert 190 (i.e. with formation Pipe curtain 104 is constructed while being carried out).As a result, after the formation of pipe curtain 104, without removing the pipe curtain machine jacking mechanism in starting well 110 140, box culvert jacking mechanism 180 can be started after first section box culvert 190 is connect with 104 end face of pipe curtain, and successively jacking box culvert 190.Box culvert 190 and pipe curtain 104 simultaneously advance under the package action of antifriction plate 170, to successively eject tube coupling 160.As a result, So that the soil body 102 is ejected from the channel other side in pipe curtain 104 and pipe curtain 104.After pipe curtain 104 ejects a distance, quilt is dismantled The tube coupling 160 of ejection excavates the soil body 102 in simultaneously discharge pipe curtain 104.Repeat box culvert 190 construct and jacking box culvert 190 from And the construction procedure of pipe curtain 104 is ejected, until removing all soil bodys 102 in whole tube couplings 160 and discharge pipe curtain 104, finally Form channel 100.
Box culvert displacement pipe curtain construction method according to the present invention is particularly suitable for passing through that existing buildings, to adapt to big cross section shallow Earthing, the box culvert displacement pipe curtain construction for not influenced small, equipment and material high recycling rate by the limitation of tunnel cross-section size, environment Method.
Box culvert displacement pipe curtain construction method according to the present invention can effectively control surface subsidence, suitable for passing through existing structure Build object.The construction method forms " mouth " font pipe curtain by 150 jacking of small rectangular pipe curtain machine, and " mouth " font pipe curtain is to front soil Body plays advance support, in the construction process, make box culvert 190 promote the disturbance very little to the soil body, to ground structures And surrounding enviroment influence is small.Meanwhile the anti-back soil antifriction plate 170 by being arranged in outside pipe curtain 104 by the soil body 102 and pipe curtain 104, Box culvert 190 is isolated, and with the native ability of very strong anti-back, security performance is high.The construction method passes through 190 displaced soil mass of box culvert 102, the digging operation below existing building 101 is avoided, so that the Fully-mechanized operation outside tunnel, effectively increases construction The security performance of operation, and the dregs displaced, without sediment improvement, waste is pollution-free.In addition, rectangular tube curtain machine equipment cost It is lower, and various different section sizes are suitable for, rectangle tube coupling is recyclable, high recycling rate.The construction method wide adaptability, Intrinsic construction equipment is not limited by tunnel cross-section size, and section is adaptable, is especially adapted to especially big tunnel cross-section construction, is not covered Native effect of depth is suitable for ultra-shallow earth-covered construction.The construction method is constructed for shallow earthing, will not cause surface subsidence, engineering It is high-quality, and jacking force needed for box culvert 190 is relatively small, is easy to Engineering Quality Control.
Finally it should be noted that the foregoing is merely the preferred embodiments of the invention, do not constitute to the present invention Any restrictions.Although referring to foregoing embodiments, invention is explained in detail, for the technology of this field It for personnel, can still modify to technical solution documented by previous embodiment, or to part of technical characteristic It is equivalently replaced.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all wrap Containing within protection scope of the present invention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910175305.9A CN109944595A (en) | 2019-03-08 | 2019-03-08 | A kind of box culvert displacement pipe curtain construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910175305.9A CN109944595A (en) | 2019-03-08 | 2019-03-08 | A kind of box culvert displacement pipe curtain construction method |
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| CN109944595A true CN109944595A (en) | 2019-06-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424413A (en) * | 2019-08-12 | 2019-11-08 | 上海建工集团股份有限公司 | A kind of U-shaped underpass method of construction under complex environment |
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2019
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Patent Citations (4)
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| CN1800514A (en) * | 2005-12-13 | 2006-07-12 | 上海市第二市政工程有限公司 | Big section pipe roof- box culvert jacking construction method |
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| CN104265321A (en) * | 2014-08-06 | 2015-01-07 | 上海隧道工程有限公司 | Ultra-large full-face rectangular pipe jacking tunneling construction method |
| CN205778878U (en) * | 2016-05-13 | 2016-12-07 | 中铁二十三局集团第一工程有限公司 | A kind of supporting construction being applicable to large-section box culvert jacking crossing construction |
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| CN110424413A (en) * | 2019-08-12 | 2019-11-08 | 上海建工集团股份有限公司 | A kind of U-shaped underpass method of construction under complex environment |
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