CN101041962A - Underground continuous wall milling joint and construction technique thereof - Google Patents
Underground continuous wall milling joint and construction technique thereof Download PDFInfo
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- CN101041962A CN101041962A CN 200710017674 CN200710017674A CN101041962A CN 101041962 A CN101041962 A CN 101041962A CN 200710017674 CN200710017674 CN 200710017674 CN 200710017674 A CN200710017674 A CN 200710017674A CN 101041962 A CN101041962 A CN 101041962A
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Abstract
The invention discloses an underground continuous wall milling connector and relative construction method. The inventive connector comprises two wall ends with opposite groove sections in nearby two sections of underground continuous walls, while a connector body is arranged between the two wall ends, the wall ends and the end of the connector body are arranged with corrugated concave-convex elements, while the corrugated concave-convex elements on the wall ends are meshed with the corrugated concave-convex elements on the end of connector body, the connector body via the meshed corrugated concave-convex elements is fixed with the underground continuous walls at two ends. And the construction method comprises that (a), digging the groove hole used to build two nearby walls, (b), arranging connector plate, (c), irrigating wall concrete, (d), forming guiding groove, (e), milling connector, (f), washing connector, (g), irrigating connector. The inventive connector has reasonable design, simple structure and construction, better anti-leakage property and low cost.
Description
Technical field
The present invention relates to technical field of buildings, be specifically related to a kind of underground continuous wall milling method joint and construction technology thereof.
Background technology
At present domestic and international construction of diaphragm wall joint form is according to different nearly ten various ways of function, purposes and the construction technology of diaphragm wall.Can be divided into junction block (fore shaft pipe), joint case, dividing plate, i iron, cross steel plate and improve several common type such as joint and concave-convex type prefabricated reinforced concrete wedge joint stake by the difference of using the joint instrument.Junction block joint form steel using amount is few, cost is low, but disposable input is many, lifting appliance and time control is required height, but also have integral rigidity and leakage problems.Cross steel plate joint and for example, its construction technology adopts joint case, and water resistance is better in engineering is used, but difficulty of construction is big, and the construction costs height, long construction period.In addition, the joint of most of joint form, mud skin cleaning difficulty, the waterproof effect of butt joint brings certain influence.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, provide a kind of better anti-leakage property, construction costs is low and construction technology simple underground continuous wall milling method joint and construction technology thereof.
For achieving the above object, the technical scheme that underground continuous wall milling method joint of the present invention adopts is: a kind of underground continuous wall milling method joint, two the relative body of wall end faces of first phase groove section that comprise adjacent two sections diaphragm walls 1, it is characterized in that: be provided with adapter body 2 between described two body of wall end faces, be provided with the concavo-convex body of corrugated on the end face of body of wall end face and its opposing tabs main body 2, the concavo-convex body of corrugated on the end face of concavo-convex body of the corrugated on the body of wall end face and adapter body 2 is meshing with each other, and adapter body 2 is fixedlyed connected with the diaphragm wall 1 at its two ends by the concavo-convex body of intermeshing corrugated.
The technical scheme that underground continuous wall milling method joint construction technology of the present invention adopts is: a kind of construction technology of underground continuous wall milling method joint is characterized in that it may further comprise the steps:
(a) excavation is used to construct the first phase slotted eye of two adjacent bodies of wall, is the second stage of groove section between the first phase slotted eye;
(b) adapter plate is set: in the good first phase slotted eye of excavation, be close to the two ends cell wall and be vertically installed with the cuboid adapter plate that its lower end is wedge shape, the lower end of adapter plate is positioned at the following 2m of concrete pouring face, and the width of described adapter plate is identical with thickness of wall body, its thickness 20cm, length is not less than 3.0m;
(c) cast wall concrete: hang in the body of wall reinforcing cage in the first phase slotted eye, the cast wall concrete is to design height;
(d) form gathering sill: after the walls concrete initial set, before the final set, extract adapter plate, respectively form at the two ends of first phase groove one with the measure-alike gathering sill of adapter plate;
(e) milling joint: the concrete pouring of first phase groove begins the construction of milling method joint after three days, the leading truck of two-wheel slotter is fixed on the design attitude of the second stage of groove section, start the two-wheel slotter, and lentamente knife rest is put into gathering sill, make the vertical drop under the guide effect of gathering sill of two-wheel slotter, first phase groove concrete end face to its both sides carries out top-down milling, to the second stage of bottom land position, mill out the concavo-convex body of corrugated on the concrete vertical end face of the first phase groove of both sides, meanwhile the two-wheel slotter is also finished the soil excavation of the second stage of slotted eye;
(f) scrub joint: after joint milling and groove Duan Qingkong change the slurry end, scrub the body of wall end face from top to bottom with brush wall device;
(g) cast connector: in the second stage of slotted eye, be lowered to the connector reinforcing cage, fluid concrete.
The present invention compared with prior art has the following advantages: joint design of the present invention is reasonable, and structure and construction technology are simple, and construction costs is low.Because the break of joint is many, the seepage flow approach is long, therefore has favorable waterproof property.The present invention is applied to Datang king beach, capital, Tangshan Tang port Water of Power Plant circulating water systems engineering, has produced remarkable economic efficiency and good social benefit.
(1) economic benefit
Adopt the construction of two-wheel slotter and hit the target in the original plan (or quota index) contrast table
| Sequence number | Project | Unit | Hit the target | Plan target |
| 1 | The grooving work efficiency | m 2/d | 170 | 150 |
| 2 | Boring work efficiency (vertically) | m/d | 66 | 56 |
| 3 | Boring grooving expense | Unit/m 3 | 216 | 280 |
| 4 | Ground-connecting-wall cost cost | Unit/m 3 | 1980 | 2360 |
| 5 | Construction period | Working day | 85 | 105 |
By the statistics and analysis to above technical-economic index, the direct economic benefit that adopts two-wheel slotter construction diaphragm wall to produce is as follows:
1. this project diaphragm wall concreting side amount amounts to 12000m
3, save 380 yuan of costs for every cube according to above statistics, reduce expenses 4560000 yuan altogether.More than reduce expenses and comprised labour cost, field overhead and the Master Cost of the rental charge of slotter machine and relevant cooperating equipment, duration saving in advance.
2. the construction period of this project finished in advance in 20 days, had satisfied owner's node construction period, and had obtained the certain economic award.
This engineering belongs to first stage of the project of Datang king beach power plant engineering; the employing of ground-connecting-wall has improved the utilization ratio to idle region, seabeach greatly; further the integral layout to power plant plays optimization; circulating pump room is played a very good protection, and prolonged the production application life of circulating pump room and power plant.According to related data and specification, the building up of diaphragm wall will prolong electric power plant circulating water pump house application life more than 20 years at least, about 3,500 ten thousand yuan of this project circulating pump room individual works cost, 5 months construction period, calculate by this, the production and operation benefit of building entire power plant of diaphragm wall plays important role.
(2) social benefit
The carrier engineering of studying and use this technology is Datang king beach, capital, a Tangshan Tang port Water of Power Plant circulating water systems engineering, this power plant's gross investment scale nearly more than 90 hundred million, first phase generating set 2 * 600,000 kilowatt, reclaimed water system is most important to electricity generation system, diaphragm wall is the crucial structure of maintenance cycle water system water intaking pump house, building up the application life that will significantly reduce the planning investment, prolong the circulating water systems engineering of it, and also will produce profound significance to the fast development of China basis and pile foundation construction technology.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, underground continuous wall milling method joint of the present invention comprises two body of wall end faces that the first phase groove section of adjacent two sections diaphragm walls 1 is relative, be provided with adapter body 2 between described two body of wall end faces, the end face of body of wall end face and its opposing tabs main body 2 is provided with the concavo-convex body of intermeshing corrugated, and adapter body 2 is fixedlyed connected with the diaphragm wall 1 at its two ends by the concavo-convex body of intermeshing corrugated.
The construction technology of underground continuous wall milling method joint of the present invention may further comprise the steps:
(a) excavating out the first phase slotted eye that is used to pour into a mould two adjacent bodies of wall, is the second stage of groove section between two slotted eyes;
(b) adapter plate is set: in the good first phase slotted eye of excavation, be close to the two ends cell wall and be vertically installed with the cuboid adapter plate that its lower end is wedge shape, the lower end of adapter plate is positioned at the following 2m of concrete pouring face, and the width of described adapter plate is identical with thickness of wall body, its thickness 20cm, length is not less than 3.0m;
(c) cast wall: at first the body of wall reinforcing cage is lowered in the first phase slotted eye, fluid concrete is to design height then;
(d) form gathering sill: after the walls concrete initial set, before the final set, extract adapter plate by the machinery cooperation, adapter plate extract the back respectively form at the two ends of first phase groove one with the measure-alike gathering sill of adapter plate, the width of gathering sill is all 10～20cm mutually with thickness of wall body, thickness is identical with the joint thickness of slab to be 5cm, and the length of gathering sill is 2m;
(e) milling joint: the concrete pouring at the first phase groove begins the construction of milling method joint after three days, the joint milling adopts the BC-36 type two-wheel slotter of the precious high company of Germany and the 1.2m standard of independent development to mill wheel, the leading truck of two-wheel slotter is fixed on the design attitude of the second stage of groove section, start the two-wheel slotter, and lentamente knife rest is put into gathering sill, make the two-wheel slotter under the guide effect of gathering sill, vertically fall to the second stage of bottom land position, mill out corrugated concavo-convex body on two of two adjacent bodies of wall relative concrete end faces, simultaneously the second stage of slotted eye excavation is finished;
(f) scrub joint: after joint milling and groove Duan Qingkong change the slurry end, scrub the body of wall end face from top to bottom with brush wall device;
(g) cast connector: in the second stage of slotted eye, be lowered to the connector reinforcing cage, fluid concrete.
Be to guarantee smooth implementation of the present invention, should accomplish in the construction following some:
(1) when first phase slotted eye fluid concrete, guarantee the correct of adapter plate position and vertical vertical, and, the second stage of groove segment length is set between 2.80～2.84cm according to the size of two-wheel slotter;
(2) for preventing that joint when construction from causing bigger damage to walls concrete, joint milling construction should reach C10 in walls concrete intensity can be carried out when above, and C10 is the concrete strength standard;
(3) rationally arrange the sequence of construction of adjacent first phase groove section, shorten the blanking time of adjacent first phase groove section concrete cast as far as possible, dwindle the difference of its intensity, guarantee that the two side millings wheel of two-wheel slotter when the second stage of groove section milling grooving is evenly stressed;
(4) to keep a close eye on the deflection of knife rest in the milling process, in time use the correction plate that knife rest is rectified a deviation, prevent that knife rest is stuck in the groove section when deviation is big;
No mud trace on the wire brush when (5) guaranteeing to scrub the body of wall end face, and then hang the connector reinforcing cage;
(6) each machine-team is checked a mill teeth situation, and on-call maintenance or change problematic mill teeth carries out the milling construction smoothly.
Adopt the underground continuous wall milling method joint of above-mentioned construction technology, because the break of joint is many, the seepage flow approach is long, therefore has favorable waterproof property.
Claims (2)
1, a kind of underground continuous wall milling method joint, two the relative body of wall end faces of first phase groove section that comprise adjacent two sections diaphragm walls (1), it is characterized in that: be provided with adapter body (2) between described two body of wall end faces, be provided with the concavo-convex body of corrugated on the end face of body of wall end face and its opposing tabs main body (2), the concavo-convex body of corrugated on the end face of concavo-convex body of the corrugated on the body of wall end face and adapter body (2) is meshing with each other, and adapter body (2) is fixedlyed connected with the diaphragm wall (1) at its two ends by the concavo-convex body of intermeshing corrugated.
2, a kind of construction technology that is used to construct the described underground continuous wall milling method of claim 1 joint is characterized in that it may further comprise the steps:
(a) excavation is used to construct the first phase slotted eye of two adjacent bodies of wall, is the second stage of groove section between the first phase slotted eye;
(b) adapter plate is set: in the good first phase slotted eye of excavation, be close to the two ends cell wall and be vertically installed with the cuboid adapter plate that its lower end is wedge shape, the lower end of adapter plate is positioned at the following 2m of concrete pouring face, and the width of described adapter plate is identical with thickness of wall body, its thickness 20cm, length is not less than 3.0m;
(c) cast wall concrete: hang in the body of wall reinforcing cage in the first phase slotted eye, the cast wall concrete is to design height;
(d) form gathering sill: after the walls concrete initial set, before the final set, extract adapter plate, respectively form at the two ends of first phase groove one with the measure-alike gathering sill of adapter plate;
(e) milling joint: the concrete pouring of first phase groove begins the construction of milling method joint after three days, the leading truck of two-wheel slotter is fixed on the design attitude of the second stage of groove section, start the two-wheel slotter, and lentamente knife rest is put into gathering sill, make the vertical drop under the guide effect of gathering sill of two-wheel slotter, first phase groove concrete end face to its both sides carries out top-down milling, to the second stage of bottom land position, mill out the concavo-convex body of corrugated on the concrete vertical end face of the first phase groove of both sides, meanwhile the two-wheel slotter is also finished the soil excavation of the second stage of slotted eye;
(f) scrub joint: after joint milling and groove Duan Qingkong change the slurry end, scrub the body of wall end face from top to bottom with brush wall device;
(g) cast connector: in the second stage of slotted eye, be lowered to the connector reinforcing cage, fluid concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710017674 CN101041962A (en) | 2007-04-13 | 2007-04-13 | Underground continuous wall milling joint and construction technique thereof |
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| CN 200710017674 CN101041962A (en) | 2007-04-13 | 2007-04-13 | Underground continuous wall milling joint and construction technique thereof |
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| CN101041962A true CN101041962A (en) | 2007-09-26 |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182217A (en) * | 2011-01-24 | 2011-09-14 | 张永忠 | Tongue and groove joint saw tools |
| CN102959157A (en) * | 2010-03-30 | 2013-03-06 | Vsl国际股份公司 | Method and assembly for constructing a diaphragm wall |
| CN103132539A (en) * | 2011-12-02 | 2013-06-05 | 上海市基础工程有限公司 | Construction method of underground continuous wall connector cutting |
| CN103343533A (en) * | 2013-07-02 | 2013-10-09 | 上海市基础工程集团有限公司 | Inserting plate device for underground continuous wall sleeve milling construction |
| CN104153396A (en) * | 2014-07-17 | 2014-11-19 | 中国十七冶集团有限公司 | Anti-seepage continuous wall construction method |
| CN105625299A (en) * | 2016-03-16 | 2016-06-01 | 中冶集团武汉勘察研究院有限公司 | Wallboard type novel underground continuous wall and construction method thereof |
| CN106149679A (en) * | 2015-03-24 | 2016-11-23 | 黄河建工集团有限公司 | The construction technology of diaphram wall built by slotter |
| CN106592578A (en) * | 2016-12-31 | 2017-04-26 | 上海远方基础工程有限公司 | Ultrahigh-strength rock layer wall forming method |
| CN107524138A (en) * | 2016-06-20 | 2017-12-29 | 宏润建设集团股份有限公司 | A kind of ultra-deep foundation pit construction method of underground continuous wall |
| CN108221954A (en) * | 2017-12-14 | 2018-06-29 | 中国矿业大学 | A kind of quick detachable coercion underground continuous wall, suspender and construction method |
| CN110042876A (en) * | 2019-04-25 | 2019-07-23 | 浙江易通基础工程有限公司 | The grab bucket of chute forming machine and the method for utilizing the grab bucket Construction Anti-seepage wall |
| CN110820700A (en) * | 2019-11-18 | 2020-02-21 | 国家电网有限公司 | Hydropower station diaphragm wall and construction method thereof |
| CN112609675A (en) * | 2020-12-16 | 2021-04-06 | 上海市基础工程集团有限公司 | Tenon type sleeve milling joint based on corrugated pipe |
| CN112609709A (en) * | 2020-12-16 | 2021-04-06 | 上海市基础工程集团有限公司 | Tenon type sleeve milling joint based on removable steel pipe and construction method |
| CN112647490A (en) * | 2020-12-16 | 2021-04-13 | 上海市基础工程集团有限公司 | Tenon type sleeve milling joint based on machinable material |
| CN113216151A (en) * | 2021-04-27 | 2021-08-06 | 中国二十冶集团有限公司 | Construction method of underground continuous wall |
-
2007
- 2007-04-13 CN CN 200710017674 patent/CN101041962A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102959157A (en) * | 2010-03-30 | 2013-03-06 | Vsl国际股份公司 | Method and assembly for constructing a diaphragm wall |
| CN102959157B (en) * | 2010-03-30 | 2015-11-25 | Vsl国际股份公司 | Build method and the assembly of partition wall |
| CN102182217A (en) * | 2011-01-24 | 2011-09-14 | 张永忠 | Tongue and groove joint saw tools |
| CN102182217B (en) * | 2011-01-24 | 2014-11-19 | 项敬来 | Tongue and groove joint saw tools |
| CN103132539A (en) * | 2011-12-02 | 2013-06-05 | 上海市基础工程有限公司 | Construction method of underground continuous wall connector cutting |
| CN103343533A (en) * | 2013-07-02 | 2013-10-09 | 上海市基础工程集团有限公司 | Inserting plate device for underground continuous wall sleeve milling construction |
| CN104153396A (en) * | 2014-07-17 | 2014-11-19 | 中国十七冶集团有限公司 | Anti-seepage continuous wall construction method |
| CN106149679A (en) * | 2015-03-24 | 2016-11-23 | 黄河建工集团有限公司 | The construction technology of diaphram wall built by slotter |
| CN105625299A (en) * | 2016-03-16 | 2016-06-01 | 中冶集团武汉勘察研究院有限公司 | Wallboard type novel underground continuous wall and construction method thereof |
| CN107524138A (en) * | 2016-06-20 | 2017-12-29 | 宏润建设集团股份有限公司 | A kind of ultra-deep foundation pit construction method of underground continuous wall |
| CN107524138B (en) * | 2016-06-20 | 2020-05-05 | 宏润建设集团股份有限公司 | Construction method of ultra-deep foundation pit underground diaphragm wall |
| CN106592578A (en) * | 2016-12-31 | 2017-04-26 | 上海远方基础工程有限公司 | Ultrahigh-strength rock layer wall forming method |
| CN108221954A (en) * | 2017-12-14 | 2018-06-29 | 中国矿业大学 | A kind of quick detachable coercion underground continuous wall, suspender and construction method |
| CN108221954B (en) * | 2017-12-14 | 2023-07-18 | 中国矿业大学 | Easy-to-detach prefabricated underground diaphragm wall, lifting appliance and construction method |
| CN110042876A (en) * | 2019-04-25 | 2019-07-23 | 浙江易通基础工程有限公司 | The grab bucket of chute forming machine and the method for utilizing the grab bucket Construction Anti-seepage wall |
| CN110042876B (en) * | 2019-04-25 | 2021-06-08 | 浙江易通特种基础工程股份有限公司 | Method for constructing impervious wall by using grab bucket of trenching machine |
| CN110820700A (en) * | 2019-11-18 | 2020-02-21 | 国家电网有限公司 | Hydropower station diaphragm wall and construction method thereof |
| CN112609675A (en) * | 2020-12-16 | 2021-04-06 | 上海市基础工程集团有限公司 | Tenon type sleeve milling joint based on corrugated pipe |
| CN112609709A (en) * | 2020-12-16 | 2021-04-06 | 上海市基础工程集团有限公司 | Tenon type sleeve milling joint based on removable steel pipe and construction method |
| CN112647490A (en) * | 2020-12-16 | 2021-04-13 | 上海市基础工程集团有限公司 | Tenon type sleeve milling joint based on machinable material |
| CN113216151A (en) * | 2021-04-27 | 2021-08-06 | 中国二十冶集团有限公司 | Construction method of underground continuous wall |
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