CN101761069A - Construction method of three-in-one underground diaphragm wall - Google Patents
Construction method of three-in-one underground diaphragm wall Download PDFInfo
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- CN101761069A CN101761069A CN 200810044179 CN200810044179A CN101761069A CN 101761069 A CN101761069 A CN 101761069A CN 200810044179 CN200810044179 CN 200810044179 CN 200810044179 A CN200810044179 A CN 200810044179A CN 101761069 A CN101761069 A CN 101761069A
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Abstract
The invention relates to a construction method of a three-in-one underground diaphragm wall, which comprises the following steps of employing a full-rotation drilling machine to backfill and strengthen a retention wall after removing obstacles before forming a slot, and employing a three-shaft stirring pile to strengthen both sides of the retention wall and to stop water at the outer side of the retention wall; when forming the slot, slurry proportion is as follows: specific gravity is of 1.08 - 1.2, viscosity is of 22 - 30'', pH = 8 - 10, sand rate is less than 4%, and mud cover is of 1 - 1.5mm; the selection of a slot-forming device is as follows: during forming the retention wall, in order to prevent the impact of slot wall collapsing on a flood prevention wall, employing a masa-serial slot-forming machine with less soil disturbance. The construction method can realize the combination of an enclosure wall, a structural exterior wall and a permanent flood prevention wall. The invention can achieve landscape protection, environment protection and energy saving, increase energy utilization efficiency and land utilization in prime locations, and restore more sky to residents and the tourists; and meanwhile the three-in-one underground diaphragm wall brings convenience for the future use function distribution and site construction.
Description
Technical field
The present invention relates to a kind of diaphragm wall and analyse construction technology, particularly relate to a kind of construction method of three-in-one underground diaphragm wall that has.
Background technology
Certain project plot, 16 shop is positioned on the south the foreigner beach, Shanghai, and to the East Zhongshan Road, Huangpu River is faced in east, reaches the east gate road in the south, and north is to the Xinkai River road, and always land area is 30,400 square metres, 66,399 square metres of overall floorages.Above ground portion is three small and exquisite buildings, intersperses in large-area view leisure platform, the floating wharf of going on board for water balcony and visit Pujiang is then fallen in the Binjiang zone layer by layer, has demonstrated fully the design aim in " city allow life finer ".In addition, in the design of Binjiang platform, take into full account hommization, designed can keep out wind and rain, the view glass ceiling of shielding of ultraviolet.The underground building is established 3 layers altogether, wherein underground 1 layer based on waiting room, the passage of going on board, supporting commercial function; Underground 2 layers based on equipment with room, parking lot, supporting commercial function; Underground 3 layers based on parking lot, equipment with room, tourism office function.For making ground surface platform more smooth and easy, ground surface platform and underground 1 layer underground interlayer is set, based on functions such as VIP waiting room, supporting commerce, the passages of going on board to the peripheral path traffic.
For realizing the protection view; the purpose of environmental protection and energy saving and raising comprehensive utilization of energy efficient; improve the land use rate of this prime location; allow more sky reduce to citizen and visitor; make improved view and facility grace and safety more; arranging with site operation for simultaneously function of use in the future brings convenience; in the project development ﹠ construction process; to build sustainable development society; the state basic policy of energy-conservation saving resource is for instructing; use for reference international forward position exploitation theory; geographical position that integration project is specific and natural conditions; fully proving engineering; on the feasible basis of technology and economical rationality; introduce the scheme of " three-in-one underground diaphragm wall ", be about to the enclosure wall of constructing; structure outer integrates with permanent flood-control wall three walls.Therefore, need a kind of job practices that can implement " multi-functional diaphragm wall ".
Summary of the invention
The present invention will provide a kind of construction method of three-in-one underground diaphragm wall, and this job practices can realize that enclosure wall, structure outer and permanent flood-control wall three walls integrate.
For achieving the above object, technical scheme of the present invention is: a kind of construction method of three-in-one underground diaphragm wall, specifically comprise: before grooving, adopt the backfill after the ground wall displacement is removed obstacles of full circle swinging rig to reinforce, Di Qiang both sides cell wall is reinforced and outside sealing adopts three agitation piles to reinforce; During grooving, mud proportioning: proportion 1.08～1.2, viscosity 22～30 ", PH=8～10, sand factor＜4%, mud skin 1～1.5mm; Select grooving equipment: for preventing that the cell wall landslide from impacting flood-control wall, adopt the true sand series groover less in the ground wall grooving process to soil disturbance.
Mud was deposited more than 24 hours, used after making the abundant aquation of swell soil.
With digging, guarantee grooving verticality 1/400 during grooving with surveying with entangling.
The invention has the beneficial effects as follows: job practices of the present invention can realize that enclosure wall, structure outer and permanent flood-control wall three walls integrate.Can realize protection view, environmental protection and energy saving and improve comprehensive utilization of energy efficient, improve the land use rate of prime location, allow more sky reduce, arrange with site operation for simultaneously function of use in the future and bring convenience to citizen and visitor.
Description of drawings
Fig. 1 revolves to dig the schematic diagram of removing obstacles;
Fig. 2 is a cement-soil backfill schematic diagram;
Fig. 3 is three agitation pile schematic diagrames;
Fig. 4 is the grooving schematic diagram.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Wall is as space enclosing structure, agent structure, flood-control wall structure " unification of three walls ", wall chase wall planeness, cell wall stable type, joint waterproofing, concrete self antiseepage waterproof, verticality require 1/400 over the ground, aspects such as control ground wall sedimentation require highly, and wall construction technology " unification of three walls " has been proposed higher requirement.
" unification of three walls " of the present invention construction method of underground continuous wall, concrete construction sequence is: as shown in table 1: before grooving, adopt the backfill after the ground wall displacement is removed obstacles (Fig. 1) of full circle swinging rig to reinforce (Fig. 2), Di Qiang both sides cell wall is reinforced and outside sealing adopts three agitation piles (Fig. 3) to reinforce.Optimize the mud proportioning during grooving (Fig. 4), select suitable grooving equipment.
Strengthen management in addition, rationally arrange flow process, shorten unit groove section construction period, take measures, satisfy the antiseepage requirement.
Table 1
The optimization of mud match ratio:
From the mechanics index of physics of control mud when guaranteeing the stable grooving of the groove section soil body, select for use viscosity big, fluid loss is little, forming retaining wall mud skin approaches and the strong premium mud of toughness, guarantee that groove section Tu Bi in grooving machinery moves up and down process repeatedly is stable, calculate to determine and control every index of mud by theory.
When determining grooving, can satisfy retaining wall requirement (shown in the table 2) when mud reaches following index in the groove.
Table 2
| Proportion | Viscosity | ??PH | Sand factor | The mud skin |
| ??1.08～1.2 | ??22～30″ | ??8～10 | ??＜4％ | ??1～1.5mm |
Mud should be deposited more than 24 hours, can use after making the abundant aquation of swell soil.During side ground wall grooving near a river, suitably strengthen mud balance and viscosity, guarantee the stable and ground wall concrete quality of cell wall.
Select suitable grooving equipment:
Because existing flood-control wall needs to protect in ground wall work progress, to prevent in the ground wall grooving process that the cell wall landslide from impacting flood-control wall, adopt the true sand series groover less to soil disturbance.
Take measures, satisfy the antiseepage requirement
(1), during grooving with digging with surveying with entangling, guarantee the grooving verticality.
(2), the rigidity of reinforcing steel bar cage, prevent the reinforcement cage hoisting distortion.Place the topping billet on the reinforcing cage, stop to reveal the muscle phenomenon.
(3), improve terminal bruss, butt joint is brushed wall repeatedly and is handled until no mud.
(4), optimize the concrete grating, improve concrete self water resistance.
(5), during concreting, the strict control conduit spacing and the buried depth degree of depth are guaranteed concrete pouring quality.
(6), concrete returns slurry and highly suitably improves, and guarantees wall wall top, ground concrete quality.Emergency measure:
(1), existing flood-control wall protection and emergency measure
For prevent that damaging from appearring in flood-control wall in work progress, need to formulate special emergency preplan before the construction.Sedimentation, displacement to flood-control wall in work progress are monitored, gap observation, and the instant analysis monitored data dangerous situation occurs and takes measures early.The configure dedicated flood fighting materials, as near flood-control wall, prepare dress mud snakeskin bag several, dangerous situation occurs and can form interim cofferdam at once.The heavy duty on strict control ground in the work progress, do not make Tu Bi be subjected to constructing near load action influence and cause the Tu Bi landslide, and then influence flood-control wall safety.
(2), the emergency measure of cell wall landslide
After the ground wall becomes trough end the groove section is carried out ultrasonic test,, take measure, prevent the loss of concrete slurry in ground wall reinforcing cage outside parcel waterproof geotextiles as finding to have the phenomenon of cell wall landslide.
Claims (3)
1. construction method of three-in-one underground diaphragm wall, it is characterized in that: concrete steps are: before grooving, adopt the full circle swinging rig to reinforce in the back backfill of removing obstacles of ground wall displacement, Di Qiang both sides cell wall is reinforced and outside sealing adopts three agitation piles to reinforce; During grooving, mud proportioning: proportion 1.08～1.2, viscosity 22～30 ", PH=8～10, sand factor＜4%, mud skin 1～1.5mm; Select grooving equipment: for preventing that the cell wall landslide from impacting flood-control wall, adopt the true sand series groover less in the ground wall grooving process to soil disturbance.
2. construction method of three-in-one underground diaphragm wall according to claim 1 is characterized in that: the mud of described preparation was deposited more than 24 hours, used after making the abundant aquation of swell soil.
3. construction method of three-in-one underground diaphragm wall according to claim 1 is characterized in that: with digging with surveying with entangling, guarantee grooving verticality 1/400 during described grooving.
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| CN 200810044179 CN101761069B (en) | 2008-12-24 | 2008-12-24 | Construction method of three-in-one underground diaphragm wall |
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| CN 200810044179 CN101761069B (en) | 2008-12-24 | 2008-12-24 | Construction method of three-in-one underground diaphragm wall |
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| CN101761069A true CN101761069A (en) | 2010-06-30 |
| CN101761069B CN101761069B (en) | 2011-07-20 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556641A (en) * | 2013-10-09 | 2014-02-05 | 中铁十三局集团有限公司 | Grooving assisting method for in-pit underground diaphragm wall of existing basement |
| CN104612179A (en) * | 2014-12-31 | 2015-05-13 | 上海市机械施工集团有限公司 | Construction method for underground diaphragm wall penetrating through super-thick silt layer |
| CN105386458A (en) * | 2015-11-26 | 2016-03-09 | 中铁十一局集团第四工程有限公司 | Method for constructing slot wall of underground diaphragm wall reinforced through embedded type plastic mixing piles |
| CN105696550A (en) * | 2014-11-27 | 2016-06-22 | 五冶集团上海有限公司 | Three axes agitating pile construction method capable of assisting in grooving of reinforced underground diaphragm wall |
| CN106869110A (en) * | 2016-12-29 | 2017-06-20 | 上海市基础工程集团有限公司 | The construction method of underground continuous wall of existing underground structure |
| CN114855818A (en) * | 2022-05-23 | 2022-08-05 | 中铁二十局集团第一工程有限公司 | High-pressure rotary spraying reinforcement method for double-row narrow-distance ground wall |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1064424C (en) * | 1996-08-02 | 2001-04-11 | 北京乾坤基础工程有限公司 | 3 in 1 underground continuous wall and construction method thereof |
| CN1279319A (en) * | 1999-06-29 | 2001-01-10 | 陈星� | Full-reverse construction technology for basement |
| FR2879632B1 (en) * | 2004-12-17 | 2007-04-20 | Cie Du Sol Soc Civ Ile | PROCESS FOR MAKING MOLDED WALLS |
| NL1029709C1 (en) * | 2005-07-05 | 2007-01-08 | Bam Civiel B V | Method for manufacturing a deep wall, as well as spacer. |
| CN101289853A (en) * | 2008-05-20 | 2008-10-22 | 上海市第二建筑有限公司 | Construction method of continuous wall trench underground on soft soil region |
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2008
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556641A (en) * | 2013-10-09 | 2014-02-05 | 中铁十三局集团有限公司 | Grooving assisting method for in-pit underground diaphragm wall of existing basement |
| CN105696550A (en) * | 2014-11-27 | 2016-06-22 | 五冶集团上海有限公司 | Three axes agitating pile construction method capable of assisting in grooving of reinforced underground diaphragm wall |
| CN105696550B (en) * | 2014-11-27 | 2017-08-25 | 五冶集团上海有限公司 | A kind of three axes agitating pile construction method of additional reinforcement continuous wall trench underground |
| CN104612179A (en) * | 2014-12-31 | 2015-05-13 | 上海市机械施工集团有限公司 | Construction method for underground diaphragm wall penetrating through super-thick silt layer |
| CN105386458A (en) * | 2015-11-26 | 2016-03-09 | 中铁十一局集团第四工程有限公司 | Method for constructing slot wall of underground diaphragm wall reinforced through embedded type plastic mixing piles |
| CN105386458B (en) * | 2015-11-26 | 2017-04-05 | 中铁十一局集团第四工程有限公司 | A kind of embedded plasticity cement mixing method groove inside of continuous underground wall construction method |
| CN106869110A (en) * | 2016-12-29 | 2017-06-20 | 上海市基础工程集团有限公司 | The construction method of underground continuous wall of existing underground structure |
| CN114855818A (en) * | 2022-05-23 | 2022-08-05 | 中铁二十局集团第一工程有限公司 | High-pressure rotary spraying reinforcement method for double-row narrow-distance ground wall |
| CN114855818B (en) * | 2022-05-23 | 2023-09-12 | 中铁二十局集团第一工程有限公司 | Double-row narrow-distance ground wall high-pressure rotary spraying reinforcement method |
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| CN101761069B (en) | 2011-07-20 |
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