CN1800513A - Steel pipe roof jacking construction method - Google Patents
Steel pipe roof jacking construction method Download PDFInfo
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- CN1800513A CN1800513A CNA2005101114072A CN200510111407A CN1800513A CN 1800513 A CN1800513 A CN 1800513A CN A2005101114072 A CNA2005101114072 A CN A2005101114072A CN 200510111407 A CN200510111407 A CN 200510111407A CN 1800513 A CN1800513 A CN 1800513A
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Abstract
The invention relates to a method for constructing steel tube screen feeding, belonging underground construction technique. It is characterized in the sequence of feeding steel tube screen: mounting device, operation training, stopping water, selecting the type of steel tube screen clamp. The first one fed into steel tubes is hinged steel tube, whose end face has three-section transition steel tube with steel draw rod; the steel tubes are connected via clamp to form square section; in the process, the sedimentation condition of earth surface should be detected and controlled all the time. The invention can significantly reduce the sedimentation, with little effect on the environment and safe operation. The invention can apply the construction on the soft ground near-surface large-section subway.
Description
Technical field:
Technical field of construction under the possession exactly is the non-excavation supporting technology of a kind of underground construction.
Background technology:
Along with the attention of people to environment, present no-excavation construction method has obtained developing rapidly, and in trenchless technology, a kind of is that directly construction forms underground structure, typical in shield method; A kind of is to adopt support technology, construct underground structure then, construct as the pipe shed support method, adopt the non-elongated anchor pole that certain inclination angle is arranged, be aided with the slip casting measure and form the pipe canopy, this supporting method is generally used for preferably in the stratum, then be not suitable for for soft soil layer, therefore, for the trenchless engineering in the soft soil layer, have only the preceding a kind of direct formation underground structure worker method that adopts, but weak point is all arranged, can not adapt to the requirement in big section tunnel, underground building for the existing worker's method of the big section engineering of the shallow embedding in the soft soil layer.
Summary of the invention:
The invention provides in a kind of suitable soft soil layer the job practices that can make the steel pipe curtain jacking that ground settlement significantly reduces.
The technical scheme that the present invention takes:
Be included in two active wells of both sides excavation of planning to build the pipe curtain, the hole section of advancing of both sides active well is reinforced with the section of the appearing soil body; Active well is made construction of diaphragm wall; Carry out active well and support construction; Also form the construction of managing the curtain section after removing above-mentioned conventional construction, its scheme is:
1) determine steel pipe curtain jacking order scheme successively:
2) equipment installation, debugging, the training on operation of the jacking of steel pipe curtain
3) broken diaphragm wall is appeared
4) take measures of preventing water: the hole antipriming is installed, snap close measures of preventing water between steel pipe;
5) the snap close form is selected
6) be hinged steel pipe between the first jacking steel pipe, hinged end face is provided with three joint transition steel pipes of reinforcing pull rod;
7) steel pipe is by the continuous square shape section that forms of fore shaft
8) by the joint jacking and the elongated pipe curtain that is welded;
9) jacking of pipe curtain finishes and carries out the construction of GML pipe curtain beam
10) in the work progress, observe all the time and control ground settlement situation
Steel pipe curtain jacking order successively scheme can be a back lower place case in the following elder generation in top, top back, elder generation top; Otherwise also can, scheme gets on, get off; The equipment of steel pipe curtain jacking is the laser reflection apparatus for deivation that is provided with in the development machine, the inclinometer sensor, measurement target target, turn-sensitive device, the training on operation of steel pipe curtain jacking is to make operating personnel accurately grasp the attitude of development machine constantly first, and can rectify a deviation.Before the snap close measures of preventing water is the jacking of pipe curtain between steel pipe, add injected hole in head two sides; At steel pipe fore shaft filling foamed plastics in advance; Pipe fore shaft place's brushing sealing sliding agent; Fore shaft can be symmetry two in to the angle steel composition that matches with two export-oriented angle steel; In also can two to the angle steel composition that matches with T-steel; Can also two the band open-end tubes composition that matches; The described observation all the time and control ground settlement situation is to offer the peep hole that is used to observe the ground settlement situation, carries out soil stabilization as required, and water-stopping structure is set.
Implement behind the present invention ground settlement is significantly reduced, thereby reach little, the effect that engineering construction is safer ambient influnence.
Description of drawings:
Fig. 1. job site of the present invention sectional schematic diagram;
Fig. 2. steel pipe curtain 6 box culverts 9 cross sectional representation;
The snap close that cooperates with two export-oriented angle steel to angle steel in Fig. 3 two;
The snap close that cooperates with T-steel to angle steel in Fig. 4 two;
The snap close that two bands of Fig. 5 open-end tube matches;
The specific embodiment: existing the invention will be further described in conjunction with the accompanying drawings
Be included in two active wells 1,2 of both sides excavation of planning to build the pipe curtain; Active well is done diaphragm wall 4 constructions; Carry out active well and support 5 constructions, the hole section of advancing of both sides active well reinforces 3 with the section of the appearing soil body; Also comprise the following construction that forms pipe curtain section 6:
1) determine steel pipe curtain jacking order scheme successively:
2) equipment installation, debugging, the training on operation of the jacking of steel pipe curtain
3) broken diaphragm wall is appeared
4) take measures of preventing water: the hole antipriming is installed, snap close measures of preventing water between steel pipe;
5) the snap close form is selected
6) jacking of steel pipe elder generation is hinged between steel pipe, and hinged end face is provided with three joint transition steel pipes of reinforcing pull rod;
7) steel pipe is by the fore shaft 7 continuous square shape sections that form
8) by the joint jacking and the elongated pipe curtain that is welded;
9) jacking of pipe curtain finishes, and carries out 8 constructions of GML pipe curtain beam
10) in the work progress, observe all the time and control ground settlement situation
Steel pipe curtain jacking order successively scheme can be a back lower place case in the following elder generation in top, top back, elder generation top; Otherwise also can, scheme gets on, get off; The equipment of steel pipe curtain jacking is the laser reflection apparatus for deivation that is provided with in the development machine, the inclinometer sensor, measurement target target, turn-sensitive device, the training on operation of steel pipe curtain jacking is to make operating personnel accurately grasp the attitude of development machine constantly first, and can rectify a deviation.Before the snap close measures of preventing water is the jacking of pipe curtain between steel pipe, add injected hole in head two sides; At steel pipe fore shaft filling foamed plastics in advance; Pipe fore shaft place's brushing sealing sliding agent, fore shaft 7 can be symmetry two in to the angle steel composition that matches with two export-oriented angle steel; In also can two to the angle steel composition that matches with T-steel; Can also two the band open-end tubes composition that matches; All the time observing and control ground settlement situation, is to offer the peep hole that is used to observe the ground settlement situation, carries out soil stabilization as required, and water-stopping structure is set.
Embodiment
The grade separation tunnel is an example under certain city road to build; this tunnel is positioned at certain city's soft soil layer; the ground surface environment protection is strict; and be big section underground construction; adopt the construction of pipe curtain box culvert jacking worker method; the box culvert cross dimension is 34.2 meters * 7.85 meters, about 125 meters of pipe curtain segment length, and being linked to each other by fore shaft by the steel pipe of 80 φ 970 forms the space enclosing structure of square shape section.Concrete implementation step is as follows:
1. planning to build two active wells 1,2 of both sides excavation of pipe curtain, this engineering is south-north direction, and the north side is a Starting Well 2, and the southern side is a received well 1.Specific as follows: as to carry out 4 constructions of active well diaphragm wall earlier, the diaphragm wall that adopts thickness 800mm is as space enclosing structure, internal construction is a monolithic reinforced concrete structure, active well north and south side wall is not established liner, underground continuous wall is south deeply, the north active well is respectively 32m, 31m, adopt the construction of open cut bottom then, carry out active well and support 5 constructions, the north active well is vertically established the horizontal truss support of three road steel concrete altogether and is added the support of two road φ, 609 steel pipes, the top frame of the second road concrete horizontal truss double as active well wherein, plane out-to-out is 24.6 * 41.0m, and base plate bottom surface buried depth is 16.226m.South active well foundation ditch has vertically been established four road φ, 609 steel pipes and has been supported, and the top frame that adds active well is as the second road concrete horizontal truss support, and plane out-to-out is 24.6 * 40.2m, and base plate bottom surface buried depth is 17.051m.After active well is finished, the hole section of advancing of reply both sides, north and south active well is reinforced with the section of the appearing soil body, and due to limited conditions, this engineering is only carried out 8 meters reinforcings to the north side Starting Well section of appearing, the close hole of stabilization zone 8 is the agitation pile reinforcing of Φ 700 for 3 meters, and back 5 meters is compacting grouting and reinforcing.
2. pipe curtain section 6 adopts the steel pipe of 80 φ 970 to link to each other by fore shaft 7 and forms the square shape section, and the merogenesis length of steel pipe is 16 meters, by the elongated pipe curtain that is welded by the joint jacking.The effect of fore shaft 7 has been effects of sealing, and it is the angle steel fore shaft that its form has a variety of, the most frequently used joint categories, and this engineering adopts widely used double angle fore shaft type, and this kind joint is easy to processing when making, and is easy to control during the jacking of pipe curtain.
3. choose the type of fore shaft, the jacking order of determining the steel pipe curtain is particularly important, learn from the mechanics angle analysis: from down and on order be better than from top to down, promptly should be, but the latter is shorter than the former going up from the duration according to the first jacking bottom steel pipe order of the steel pipe of jacking both sides and top layer again.This duration of a project is tight, therefore adopts comb curtain in the first jacking, both sides and row's order down.The method that begins the order jacking from prover pipe is adopted in the steel pipe jacking.In last row's steel pipe, 1,5,9,13,21,25,29, No. 33 steel pipe is a prover pipe, and in following row's steel pipe, 41,47,53,63,68, No. 73 steel pipes are prover pipe.About two row steel pipes in, 34, No. 80 steel pipes are prover pipe.Carry out in two stages: the phase I:
(1) No. one, No. two, No. three and No. four heads are respectively since 1,5,9, No. 13 prover pipe, from left to right, and the order jacking.
(2) meanwhile, No. five, No. six, No. seven and No. eight heads are respectively since 21,25,29, No. 33 prover pipes, from right to left, and the order jacking.
Second stage:
(1) No. one, No. two heads are respectively since 34, No. 80 prover pipes, from the top down, and the order jacking.
(2) No. three, No. four, No. five heads are respectively since 73,68, No. 63 prover pipes, from left to right, and the order jacking.
(3) meanwhile, No. six, No. seven, No. eight heads are respectively since 53,47, No. 41 prover pipes, from right to left, and the order jacking.
4. the jacking of steel pipe curtain comprises that equipment is installed, the hole antipriming is appeared, installed in debugging, broken diaphragm wall, wear the agitation pile stabilization zone, steel pipe jacking and field Welding and advance the hole construction, the jacking of pipe curtain finishes, carry out the construction of GML beam construction (pipe curtain beam) 8, its effect is that the steel pipe curtain is connected reliably with diaphragm wall.Accomplish that in jack-in process the measure that high-precision attitude control need be taked is:
Adopt the construction of mire water equilibrium tube development machine, the deviation-rectifying system of push-bench can satisfy sensitive correction requirement, and operating personnel have the technology of skilled control development machine attitude.For satisfying the requirement of guiding smoothly of steel pipe curtain, behind development machine,, be hinged between this steel pipe immediately following three joint transition steel pipes, also be provided with reinforcing pull rod at hinged end face, out of hand with the aperture opening ratio of avoiding the hinged place.Laser reflection apparatus for deivation is set in development machine, the inclinometer sensor, the measurement target target, turn-sensitive device so that operating personnel accurately grasp the attitude of development machine constantly first, and can be rectified a deviation.
5. the present invention's measure that fore shaft sealing between steel pipe is taked is: before the jacking of pipe curtain, add injected hole in head two sides; Before the jacking at steel pipe fore shaft filling foamed plastics in advance; Pipe fore shaft place's brushing sealing sliding agent has the gel that lubrication, later stage become the sealing effect during steel pipe jacking, and by pre-buried Grouting Pipe ejection for water plugging; The technology of displacement thixotropic slurry just can be carried out after adjacent two pipeline jackings finish, and after replacing process was finished, further the injected hole pressure injection polyamine fat of reserving at the fore shaft position was starched, to play the effect of impervious leakage-stopping.Reserve enough tracking grouting holes simultaneously, so that in shoveling, support process, local fore shaft breakthrough is carried out leak stopping.
6. the present invention's measure that face of land settlement Control is taked is: must reinforce the soil body at active well inlet and outlet cave place, before the construction of appearing, need be by opening means such as peep hole, the sealing performance of the soil body after confirming to reinforce has reached designing requirement, if reinforcing, soil layer do not reach designing requirement, then need to carry out second consolidation and handle, after confirming safety, just can carry out the construction of appearing of push pipe; For preventing that effectively underground water, lubricated slurry from flowing in the active well, need be provided with effective hole water stop structure; In addition, adopt the high-precision attitude control technology, rational jacking order, the measures of preventing water of carrying out fore shaft all is effective measures of control ground settlement.
Claims (7)
1. the job practices of steel pipe curtain jacking is included in both sides excavation two active wells (1) (2) of planning to build the pipe curtain; Active well adopts diaphragm wall to go along with sb. to guard him (4) construction; Carry out active well and support (5) construction; The hole section of advancing of both sides active well is reinforced (3) with the section of the appearing soil body; It is characterized in that:
Also comprise the construction that forms pipe curtain section (6):
1) determines steel pipe curtain jacking order scheme successively;
2) equipment installation, debugging, the training on operation of the jacking of steel pipe curtain;
3) broken diaphragm wall is appeared;
4) take measures of preventing water: the hole antipriming is installed, snap close measures of preventing water between steel pipe;
5) the snap close form is selected;
6) be hinged steel pipe between the first jacking steel pipe, hinged end face is provided with three joint transition steel pipes of reinforcing pull rod;
7) steel pipe is by the continuous square shape section that forms of fore shaft (7);
8) by the joint jacking and the elongated pipe curtain that is welded;
9) jacking of pipe curtain finishes and carries out the construction of GML pipe curtain beam;
10) in the work progress, observe all the time and control ground settlement situation.
The job practices of 2 steel pipe curtain according to claim 1 jackings is characterized in that: described steel pipe curtain jacking order successively scheme can be a back lower place case in the following elder generation in top, top back, elder generation top; Otherwise also can, scheme gets on, get off.
The job practices of 3 steel pipe curtain according to claim 1 jackings is characterized in that: the equipment of described steel pipe curtain jacking is the laser reflection apparatus for deivation that is provided with in the development machine, inclinometer sensor, measurement target target, turn-sensitive device.
The job practices of 4 steel pipe curtain according to claim 1 jackings is characterized in that: the training on operation of described steel pipe curtain jacking is to make operating personnel accurately grasp the attitude of development machine constantly first, and can rectify a deviation.
The job practices of 5 steel pipe curtain according to claim 1 jackings is characterized in that: before the snap close measures of preventing water is the jacking of pipe curtain between described steel pipe, add injected hole in head two sides; At steel pipe fore shaft filling foamed plastics in advance; Pipe fore shaft place's brushing sealing sliding agent.
The job practices of 6 steel pipe curtain according to claim 1 jackings is characterized in that: described fore shaft (7) can be symmetry two in to the angle steel composition that matches with two export-oriented angle steel; In also can two to the angle steel composition that matches with T-steel; Can also two the band open-end tubes composition that matches.
The job practices of 7 steel pipe curtain according to claim 1 jackings is characterized in that: the described observation all the time and control ground settlement situation is to offer the peep hole that is used to observe the ground settlement situation, carries out soil stabilization as required, and water-stopping structure is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101114072A CN1800513A (en) | 2005-12-13 | 2005-12-13 | Steel pipe roof jacking construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101114072A CN1800513A (en) | 2005-12-13 | 2005-12-13 | Steel pipe roof jacking construction method |
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| CN1800513A true CN1800513A (en) | 2006-07-12 |
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| CNA2005101114072A Pending CN1800513A (en) | 2005-12-13 | 2005-12-13 | Steel pipe roof jacking construction method |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737060B (en) * | 2009-12-28 | 2011-08-10 | 中铁二局股份有限公司 | Beneath-soil through-tunnel superlarge diameter pipe curtain construction method |
| CN102182464A (en) * | 2011-03-31 | 2011-09-14 | 上海建工集团股份有限公司 | Construction structure and construction method of channel structure |
| CN102486092A (en) * | 2010-12-06 | 2012-06-06 | 上海市机械施工有限公司 | Pipe jacking machine holing-through construction method of rectangular channel construction in deep soil layer |
| CN102535473A (en) * | 2010-12-09 | 2012-07-04 | 上海市基础工程有限公司 | Connection method of pipe curtain and underground structure |
| CN102777189A (en) * | 2012-08-09 | 2012-11-14 | 中铁十六局集团北京工程有限公司 | Intermediate-jacking-station-free jacking construction device of ultra-long pipe roof and method thereof |
| CN104088652A (en) * | 2014-07-22 | 2014-10-08 | 中交第二公路勘察设计研究院有限公司 | Method for horizontal dynamic controlled-freezing water stopping between pipe roofs |
| CN104652302A (en) * | 2013-11-25 | 2015-05-27 | 天津城建隧道股份有限公司 | Advancing construction method of ultralarge pipe roofing box culvert |
| CN105350971A (en) * | 2015-09-30 | 2016-02-24 | 上海隧道工程有限公司 | Pipe-roofing push bench provided with lock guiding devices and attitude control method thereof |
| CN105714686A (en) * | 2016-03-02 | 2016-06-29 | 沈阳铁道勘察设计院有限公司 | Double-L type pipe-roofing structure control box bridge jacking method |
| CN105888677A (en) * | 2016-05-09 | 2016-08-24 | 江苏鸿基节能新技术股份有限公司 | Underground pipe gallery construction device, combination and construction method |
| CN105927230A (en) * | 2015-11-30 | 2016-09-07 | 迟新宋 | Construction method for forming pipe-roofing by single tube interlocking |
| CN106638732A (en) * | 2017-01-11 | 2017-05-10 | 中铁第四勘察设计院集团有限公司 | Underground foundation pile pipe-roof support structure and construction method thereof |
| CN107780942A (en) * | 2017-11-20 | 2018-03-09 | 浙江交通职业技术学院 | The new prefabricated assembled pipe canopy and its manufacture craft of a kind of soft soil tunnel pre-reinforcement |
| CN108915698A (en) * | 2018-08-14 | 2018-11-30 | 中铁十四局集团有限公司 | A kind of complex condition large diameter pipe curtain construction method |
| CN109235507A (en) * | 2018-10-26 | 2019-01-18 | 中铁四局集团第工程有限公司 | A kind of stratum consolidation system and method for reinforcing existing tunnel |
| CN111206934A (en) * | 2020-02-14 | 2020-05-29 | 上海市城市建设设计研究总院（集团）有限公司 | Pipe group isolation jacking pipe construction method |
| CN112267888A (en) * | 2020-10-26 | 2021-01-26 | 中铁八局集团第一工程有限公司 | Construction method of large-bearing pipe curtain |
| CN113756366A (en) * | 2021-09-18 | 2021-12-07 | 同济大学 | Novel pipe curtain-box culvert integrated tunnel structure and construction method |
| CN114165240A (en) * | 2021-11-29 | 2022-03-11 | 苏交科集团股份有限公司 | Multilayer pipe curtain structure based on square jacking pipes and construction method thereof |
| CN115142859A (en) * | 2022-09-01 | 2022-10-04 | 中国矿业大学(北京) | Pipe curtain construction equipment and pipe curtain construction method |
-
2005
- 2005-12-13 CN CNA2005101114072A patent/CN1800513A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737060B (en) * | 2009-12-28 | 2011-08-10 | 中铁二局股份有限公司 | Beneath-soil through-tunnel superlarge diameter pipe curtain construction method |
| CN102486092A (en) * | 2010-12-06 | 2012-06-06 | 上海市机械施工有限公司 | Pipe jacking machine holing-through construction method of rectangular channel construction in deep soil layer |
| CN102535473A (en) * | 2010-12-09 | 2012-07-04 | 上海市基础工程有限公司 | Connection method of pipe curtain and underground structure |
| CN102535473B (en) * | 2010-12-09 | 2014-09-03 | 上海市基础工程集团有限公司 | Connection method of pipe curtain and underground structure |
| CN102182464A (en) * | 2011-03-31 | 2011-09-14 | 上海建工集团股份有限公司 | Construction structure and construction method of channel structure |
| CN102777189B (en) * | 2012-08-09 | 2015-09-16 | 中铁城建集团北京工程有限公司 | A kind of ultra-long tube curtain non-relay jacking construction device and method |
| CN102777189A (en) * | 2012-08-09 | 2012-11-14 | 中铁十六局集团北京工程有限公司 | Intermediate-jacking-station-free jacking construction device of ultra-long pipe roof and method thereof |
| CN104652302A (en) * | 2013-11-25 | 2015-05-27 | 天津城建隧道股份有限公司 | Advancing construction method of ultralarge pipe roofing box culvert |
| CN104088652A (en) * | 2014-07-22 | 2014-10-08 | 中交第二公路勘察设计研究院有限公司 | Method for horizontal dynamic controlled-freezing water stopping between pipe roofs |
| CN104088652B (en) * | 2014-07-22 | 2016-02-24 | 中交第二公路勘察设计研究院有限公司 | A kind of pipe interlude horizontal dynamic controlling freezes water-stop method |
| CN105350971A (en) * | 2015-09-30 | 2016-02-24 | 上海隧道工程有限公司 | Pipe-roofing push bench provided with lock guiding devices and attitude control method thereof |
| CN105927230A (en) * | 2015-11-30 | 2016-09-07 | 迟新宋 | Construction method for forming pipe-roofing by single tube interlocking |
| CN105714686A (en) * | 2016-03-02 | 2016-06-29 | 沈阳铁道勘察设计院有限公司 | Double-L type pipe-roofing structure control box bridge jacking method |
| CN105888677A (en) * | 2016-05-09 | 2016-08-24 | 江苏鸿基节能新技术股份有限公司 | Underground pipe gallery construction device, combination and construction method |
| CN106638732A (en) * | 2017-01-11 | 2017-05-10 | 中铁第四勘察设计院集团有限公司 | Underground foundation pile pipe-roof support structure and construction method thereof |
| CN107780942A (en) * | 2017-11-20 | 2018-03-09 | 浙江交通职业技术学院 | The new prefabricated assembled pipe canopy and its manufacture craft of a kind of soft soil tunnel pre-reinforcement |
| CN108915698A (en) * | 2018-08-14 | 2018-11-30 | 中铁十四局集团有限公司 | A kind of complex condition large diameter pipe curtain construction method |
| CN109235507A (en) * | 2018-10-26 | 2019-01-18 | 中铁四局集团第工程有限公司 | A kind of stratum consolidation system and method for reinforcing existing tunnel |
| CN109235507B (en) * | 2018-10-26 | 2023-09-22 | 中铁四局集团第一工程有限公司 | Stratum reinforcing system and method for reinforcing existing tunnel |
| CN111206934A (en) * | 2020-02-14 | 2020-05-29 | 上海市城市建设设计研究总院（集团）有限公司 | Pipe group isolation jacking pipe construction method |
| CN112267888A (en) * | 2020-10-26 | 2021-01-26 | 中铁八局集团第一工程有限公司 | Construction method of large-bearing pipe curtain |
| CN113756366A (en) * | 2021-09-18 | 2021-12-07 | 同济大学 | Novel pipe curtain-box culvert integrated tunnel structure and construction method |
| CN114165240A (en) * | 2021-11-29 | 2022-03-11 | 苏交科集团股份有限公司 | Multilayer pipe curtain structure based on square jacking pipes and construction method thereof |
| CN115142859A (en) * | 2022-09-01 | 2022-10-04 | 中国矿业大学(北京) | Pipe curtain construction equipment and pipe curtain construction method |
| CN115142859B (en) * | 2022-09-01 | 2023-01-20 | 中国矿业大学(北京) | Pipe curtain construction equipment and pipe curtain construction method |
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