CN102839682A - Method for protecting large well point dewatering road surface during reverse construction - Google Patents

Method for protecting large well point dewatering road surface during reverse construction Download PDF

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Publication number
CN102839682A
CN102839682A CN2011101721634A CN201110172163A CN102839682A CN 102839682 A CN102839682 A CN 102839682A CN 2011101721634 A CN2011101721634 A CN 2011101721634A CN 201110172163 A CN201110172163 A CN 201110172163A CN 102839682 A CN102839682 A CN 102839682A
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CN
China
Prior art keywords
well
road
steel plate
stone
dewatering
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011101721634A
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Chinese (zh)
Inventor
许文冲
谭志斌
张志敏
王湫
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China MCC20 Group Corp Ltd
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China MCC20 Group Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by China MCC20 Group Corp Ltd filed Critical China MCC20 Group Corp Ltd
Priority to CN2011101721634A priority Critical patent/CN102839682A/en
Publication of CN102839682A publication Critical patent/CN102839682A/en
Pending legal-status Critical Current

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Abstract

The invention relates to reverse construction, in particular to a method for protecting a large well point dewatering road surface during reverse construction. The method comprises the following steps of: 1, positioning a well point and breaking a marble road surface, namely manually dismantling marble of the round surface in the well point region after positioning the well point; 2, digging a deep trench, namely taking out the marble of the road surface and then manually digging the deep trench so as to expose a pipeline below a dewatering well at the deep trench; 3, installing the dewatering well, a casing pipe, a water pump and a water discharge pipe, covering and protecting the well site of the dewatering well by utilizing a steel plate of which the length and width are greater that each edge of the external diameter of the dewatering well, covering the well hole of the dewatering well, punching four corners of the steel plate and installing expansion bolts so as to fix the steel plate; and 4, reserving one corner of the part, which is out of the road surface, of a reinforcement water discharge pipe of the dewatering well at the steel plate, leading the reinforcement pipe into a rain pipe and sewage pipe, and wrapping and clamping two sides of the reinforcement pipe at a part which passes by the road surface. By utilizing the method, the operation construction period of the dewatering well is ensured, and potential safety hazards are eliminated.

Description

The medium-and-large-sized well-points dewatering of reverse construction road surface guard method
Technical field
The present invention relates to reverse construction, relate in particular to the construction of the medium-and-large-sized precipitation of reverse construction well point.
Background technology
Continuous development along with China's urban construction; Land resources rare gradually; Take all factors into consideration wartime and people's air defense needs at ordinary times; Increasing one, tier 2 cities is considered under ripe bustling shopping street road, to build civil air defense constructions and installations, is used for the deposit of depositing of the hiding of personnel, goods and materials wartime, carries out effective commercial retail shop economic interests value exploitation at ordinary times.
The conventional lid of civil air defense constructions and installations digs in the reverse construction; Usually earlier soldier pile (maintenance system that the main body fortification are outer), stake Dai Zhu (vertical support system) and top board (horizontal support system) construction are finished; Short time recovers to the greatest extent with the road surface again; To satisfy bustling shopping street, people's air defense top peripheral common people are gone on a journey, extensions retail shop interests are worth, traffic pressure is dredged and the short-term effect of urban civilization image.
But the precipitation operation of later stage top board sub-body structure construction prerequisite; Shopping street construction so bustling certainly will will have serious difficulty of construction; Especially the large-scale well point that is positioned at marble road motor vehicle road (precipitation radiation scope of conventional large-scale well point) about the every extensions 10 ~ 15m in road both sides needs to lay a precipitation well, and construction operation and prior to main body construction is dismountable in the main structure construction rear that finishes; And recover the pavement of road of position, well point, the cycle is longer.
Being positioned at the so many well point, road surface that goes out, extensions both sides, marble road motor vehicle road all will bring adverse influence for common people's trip, smooth and easy, the modern image of urban civilization of automobile traffic; Especially at large-scale retail shop square and intersection position, the influence of special circumstances such as parking lot rotation angle position is more obvious.
Conventional now method is to take to be provided with in each precipitation well outlet face portion the method for the eye-catching sign of a security warning bucket, but quantity is many, and density is big; Take the current area of road; And drainage pipe crosses road etc. the influence of motorway is still existed, and just played certain security warning effect, but privileged sites automobile traffic obstacle can not be removed at all; As time goes on; Inevitably be destroyed, break, in order to reach the effect of civilized town road and security warning, certainly will be again with have to the caution bucket that destroys carry out secondary, three inferior replacings are installed.
Summary of the invention
The present invention is intended to address the aforementioned drawbacks, and the medium-and-large-sized well-points dewatering of a kind of reverse construction road surface guard method is provided.The present invention makes the precipitation well operations duration be able to guarantee that moulding descendant, vehicle flowrate have a good transport and communication network, and privileged sites traffic such as extensions retail shop, parking lot are also accessible, and potential safety hazard is got rid of.
For addressing the above problem, the medium-and-large-sized well-points dewatering of a kind of reverse construction of the present invention road surface guard method, it comprises the following steps:
Step 1, well point location, abolish on the marble road surface: behind the location, well point, the marble on road surface in the zone, well point is carried out manual work dismounting;
Step 2, dig trial trench: Dali, road surface stone material carries out hand excavation's trial trench after taking out again, and the degree of depth is not less than 1.50m, exposes the pipeline of this position precipitation downhole to greatest extent;
Step 3 is installed precipitation well, sleeve pipe, suction pump and gutter, after finishing, all goes out each limit 200mm steel plate covering protection precipitation well well location of precipitation well external diameter greatly with a block length is wide, covers precipitation well wellhole, and steel plate adopts punching installation expansion bolt to fix for four jiaos;
Step 4, precipitation well reinforcement drainage pipe go out the position, road surface and reserve one jiao at the steel plate place, and to rain, sewage conduct, the reinforcement pipeline both sides of the facial position of passing by on one's way adopt the steel deceleration strip to give double team with the ejectment of reinforcement pipeline.
The medium-and-large-sized well-points dewatering of described reverse construction road surface guard method, in the said step 1, remove the marble road surface and comprise:
The place carries out the drill rod jointing to adjacent stone material mortar joints, and mortar is slowly rejected;
Each is made a call to two eyes, presses expansion bolt with electric drill at the two ends of stone material, fixing reinforcing bar U type draw ring on the bolt,
With electric hoist and crowbar lifting stone material, the stone material that pounds with a hammer in the lifting process is got the stone material monoblock at last.
The medium-and-large-sized well-points dewatering of described reverse construction road surface guard method, said step 1 is to step 4 and carries on construction work at night.
Adopting method of the present invention to carry out construction precipitation well point operation in the bustling intensive zone, main traffic vehicle road, city, can drop to minimum frequency to original marble or flexible pavement destruction, recovers economy to lose and drops to bottom line in the later stage road surface; The obstacle on motor way travel road surface is solved basically; Do not warned the obstacle of bucket; Original motorway can all be utilized; Aboveground of the precipitation that has reduced one of former every 10-15m along the line is provided with original lane width that caution bucket, drainage pipe etc. occupy, and precipitation well road surface safeguard measure possibly eliminated by what repeatedly damage basically, has reduced repeatedly manual work, the material cost input of replacing; Precipitation well itself and drainage pipe have also been played good safeguard measure effect.
The specific embodiment
The medium-and-large-sized well-points dewatering of a kind of reverse construction of the present invention road surface guard method, it comprises:
1, sets the precipitation well construction activity duration and change into by daytime construction and carrying on construction work at night, avoid the time of the normal operation of people, vehicle flowrate and retail shop of urban traffic peak period;
2, well point location, abolish on the marble road surface: behind the location, well point, the marble on road surface in the zone, well point is carried out manual work dismounting; Earlier adjacent stone material mortar joints place is carried out the drill rod jointing; Mortar is slowly rejected, and each is made a call to 2 eyes, presses the M16 expansion bolt with electric drill at the two ends of stone material again, fixing Φ 12 reinforcing bars " U " type draw ring on the bolt; At last with electric hoist and crowbar lifting stone material; The stone material that pounds with a hammer in the lifting process takes out the stone material monoblock of trying one's best to be used for second use, and reduces the destruction to adjacent stone material to greatest extent.
3, dig trial trench: Dali, road surface stone material carries out hand excavation's trial trench after taking out again; The degree of depth is not less than 1.50m; Expose this position precipitation downhole to greatest extent and whether have or not pipeline, reduce the length and width size of trial trench simultaneously as far as possible, to reduce the damage of roadbed, road surface structare layer;
4, precipitation well, sleeve pipe, suction pump and gutter etc. install; Use at last one 12 thick; Length and width all go out each limit 200mm steel plate covering protection precipitation well well location of precipitation well external diameter greatly, cover precipitation well wellhole, and steel plate adopts punching installing M 16 expansion bolts to fix for four jiaos;
5, precipitation well reinforcement drainage pipe goes out the position, road surface and reserves one jiao at the steel plate place, and in reinforcement pipeline ejectment to rain (dirt) waterpipe, the reinforcement pipeline both sides of the facial position of passing by on one's way adopt steels " deceleration strip " to give double team.

Claims (3)

1. the medium-and-large-sized well-points dewatering of a reverse construction road surface guard method is characterized in that it comprises the following steps:
Step 1, well point location, abolish on the marble road surface: behind the location, well point, the marble on road surface in the zone, well point is carried out manual work dismounting;
Step 2, dig trial trench: Dali, road surface stone material carries out hand excavation's trial trench after taking out again, exposes the pipeline of this position precipitation downhole to greatest extent;
Step 3 is installed precipitation well, sleeve pipe, suction pump and gutter, after finishing, with the wide steel plate covering protection precipitation well well location that all goes out each limit of precipitation well external diameter greatly of a block length, covers precipitation well wellhole, and steel plate adopts punching that expansion bolt is installed for four jiaos and fixes;
Step 4, precipitation well reinforcement drainage pipe go out the position, road surface and reserve one jiao at the steel plate place, and to rain, sewage conduct, the reinforcement pipeline both sides of the facial position of passing by on one's way adopt the steel deceleration strip to give double team with the ejectment of reinforcement pipeline.
2. the medium-and-large-sized well-points dewatering of reverse construction according to claim 1 road surface guard method, wherein, said step 1 is removed the marble road surface and is comprised:
The place carries out the drill rod jointing to adjacent stone material mortar joints, and mortar is slowly rejected;
Each is made a call to two eyes, sets up expansion bolt with electric drill at the two ends of stone material, fixing reinforcing bar U type draw ring on the bolt,
With electric hoist and crowbar lifting stone material, the stone material that pounds with a hammer in the lifting process takes out the stone material monoblock at last.
3. the medium-and-large-sized well-points dewatering of reverse construction according to claim 1 road surface guard method is characterized in that said step 1 is to step 4 and carries on construction work at night.
CN2011101721634A 2011-06-24 2011-06-24 Method for protecting large well point dewatering road surface during reverse construction Pending CN102839682A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101721634A CN102839682A (en) 2011-06-24 2011-06-24 Method for protecting large well point dewatering road surface during reverse construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101721634A CN102839682A (en) 2011-06-24 2011-06-24 Method for protecting large well point dewatering road surface during reverse construction

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CN102839682A true CN102839682A (en) 2012-12-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106906833A (en) * 2015-12-22 2017-06-30 中国二十冶集团有限公司 A kind of contrary sequence method underground engineering dewatering well for not influenceing traffic

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543016A (en) * 1983-11-14 1985-09-24 Tallard Gilbert R Underground leachate barrier and method of making same
JP2003239296A (en) * 2002-02-12 2003-08-27 Asahi Techno:Kk Pumping equipment and underground water level lowering device
CN201172828Y (en) * 2008-03-19 2008-12-31 山西第六建筑有限公司 Well-covering device for dewatering well
JP2009179945A (en) * 2008-01-29 2009-08-13 Yoshitaka Igawa Well conduit for road and its construction method
CN201485859U (en) * 2009-07-08 2010-05-26 江苏江中集团有限公司 Sealing device of dewatering casing of deep well

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543016A (en) * 1983-11-14 1985-09-24 Tallard Gilbert R Underground leachate barrier and method of making same
JP2003239296A (en) * 2002-02-12 2003-08-27 Asahi Techno:Kk Pumping equipment and underground water level lowering device
JP2009179945A (en) * 2008-01-29 2009-08-13 Yoshitaka Igawa Well conduit for road and its construction method
CN201172828Y (en) * 2008-03-19 2008-12-31 山西第六建筑有限公司 Well-covering device for dewatering well
CN201485859U (en) * 2009-07-08 2010-05-26 江苏江中集团有限公司 Sealing device of dewatering casing of deep well

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
吴亮、别小勇: ""某大型基坑工程管井降水实例"", 《常州工学院学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106906833A (en) * 2015-12-22 2017-06-30 中国二十冶集团有限公司 A kind of contrary sequence method underground engineering dewatering well for not influenceing traffic

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Application publication date: 20121226

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