CN102888851A - Deep water level plash and construction method thereof - Google Patents
Deep water level plash and construction method thereof Download PDFInfo
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- CN102888851A CN102888851A CN2012103758375A CN201210375837A CN102888851A CN 102888851 A CN102888851 A CN 102888851A CN 2012103758375 A CN2012103758375 A CN 2012103758375A CN 201210375837 A CN201210375837 A CN 201210375837A CN 102888851 A CN102888851 A CN 102888851A
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Abstract
The invention provides a deep water level plash, which comprises a plash pit and a ponding tank which is arranged inside the plash pit, wherein a draining layer is filled between an inner wall of the plash pit and an outer wall of the ponding tank; a concrete layer is poured on an inner wall of the ponding tank; the upper part of the plash pit is provided with a bottom plate structure; and the bottom plate structure is born to the upper part of the draining layer and is fixedly connected with the outer wall of the ponding tank. The invention also provides a construction method of the deep water level plash pit. The technology is simple and firm in structure, the inner wall of the ponding tank serves as an outer mold with a pouring concrete structure of the permanent plash pit and a bottom mold with a bottom plate structure and serves as a water collecting device during drainage and a water retaining barrier during concreting, and the technical effect of changing water shutoff into dewatering is achieved. The displacement of buildings on two sides can be avoided under the condition that the buildings on two sides have the foundation without shear capacity.
Description
Technical field
The present invention relates to a kind of plash, particularly a kind of deep water level plash and job practices thereof, and the ponding drainage system that adopts this plash.
Background technology
Based on prior art, in deep water level plash building, establish plash and groundwater table is higher than the problem of foundation ditch in order to solve in the deep foundation ditch outer can't the staying in basis, usually adopt the underground water-stop curtain construction of diaphragm wall and soldier pile.As shown in Figure 1, before building plash 020, first construction comprises double deep-mixed pile 010 and diaphragm wall 030 superimposed composition water-stop curtain.Even but double deep-mixed pile 010 reaches clay rock bed deeply, also tend to occur leaking on a large scale.General solution is to adopt body of wall is chiseled application water blockoff material shutoff and carried out high pressure jet grouting in the outside, the place of leaking, and forms twice and replenishes the sealing defence line.But the expense of this solution is high, weak effect, and often leak again at stifled good other place at a place, and the place that perhaps leaks is darker, and the excavation difficulty is long in time limit, and will expose on a large scale as body of wall, the pile body that build-in is used, and very easily causes potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of simple in structure firmly, the change water blockoff is hydrophobic deep water level plash.A kind of deep water level plash, comprise plash foundation ditch and the water storage tank that is arranged at plash foundation ditch inside, be filled with the drainage layer between described plash foundation ditch inwall and the water storage tank outer wall, described water storage tank inwall has been built layer of concrete and has been formed plash, described plash foundation ditch top has base arrangement, base arrangement is at water storage tank opening part opening, and described base arrangement is carried on drainage layer top and is fixedly connected with the water storage tank outer wall.Described water storage tank inwall had both been built external mold and the base arrangement bed die of coagulation structure layer as permanent plash, the dash barrier the when water collection device during again as draining and concrete cast has been realized becoming water blockoff and has been hydrophobic technique effect.
Form special water tank by the deep water level plash and form the ponding draining system, simple in structure firm, become water blockoff into hydrophobic, can not stay hidden danger.
Preferably, described layer of concrete is full of water storage tank, is coated with base arrangement on the described layer of concrete.
Preferably, described water storage tank inwall is welded with the water storage tank main reinforcement, and described water storage tank main reinforcement is L-type, and the one side weld is connected on the described water storage tank vertical inner wall, its another side is welded at the bottom of the described water storage tank on the inwall, and described layer of concrete is built on described water storage tank main reinforcement basis.
Preferably, described water storage tank inwall, outer wall and base arrangement corresponding position are welded with seal ring.
Preferably, described water storage tank outer wall is provided with support member.
Preferably, also comprise continuous underground wall structure, described plash foundation ditch one side links to each other with diaphragm wall.
Preferably, described puddle foundation ditch is downslope away from another sidewall of diaphragm wall.
The embodiment of the invention also provides a kind of deep water level plash job practices, comprise following construction sequence: construction of diaphragm wall, the plash excavation, fill the drainage layer and insert water storage tank construction in place, by drainage layer draining and bottom slab concreting construction outside water storage tank water inlet, water storage tank, concreting layer construction in the water storage tank.
Preferably, describedly be may further comprise the steps to water storage tank water inlet, the outer draining of water storage tank and bottom slab concreting construction by the drainage layer: reached by water pump and gutter by the outside draining of water storage tank to the intake chamber water inlet by the drainage layer by band gate water inlet pipe, simultaneously the construction except the water storage tank opening part base plate, treat that bottom slab concreting reaches the design strength percentage more than 70, then valve-off is pulled out drainage behind the inspection leakproof.
Preferably, the construction of concreting layer may further comprise the steps in the described water storage tank: weld main muscle at the water storage tank inwall, formwork also ties up reinforcing bar, and concreting forms plash.
Preferably, the construction of concreting layer may further comprise the steps in the described water storage tank: weld main muscle at the water storage tank inwall, formwork also ties up reinforcing bar, builds full concrete in the water storage tank, fills up complete base plate on the water storage tank.
This embodiment job practices makes the water storage tank inwall both build external mold and the base arrangement bed die of coagulation structure layer as permanent plash, and the dash barrier the when water collection device during again as draining and concrete cast has been realized becoming water blockoff and has been hydrophobic technique effect.
Description of drawings
Fig. 1 is the plash schematic diagram of prior art.
Fig. 2 is the plash excavation view that embodiments of the invention relate to.
Fig. 3 is the filling drainage layer that relates to of embodiments of the invention and inserts water storage tank Construction State schematic diagram in place.
Fig. 4 be embodiments of the invention relate to by drainage layer draining and bottom slab concreting Construction State schematic diagram outside water storage tank water inlet, water storage tank.
Fig. 5 is the deep water level plash schematic diagram that embodiments of the invention relate to.
Fig. 6 is the impermanency plash schematic diagram that embodiments of the invention relate to.
Fig. 7 is the flow chart of the deep water level plash job practices that relates to of embodiments of the invention.
Fig. 8 is the building ponding drainage system schematic diagram that embodiments of the invention relate to.
The specific embodiment
Below in conjunction with drawings and Examples structure of the present invention is elaborated.
One embodiment of the present of invention provide a kind of deep water level plash, and as shown in Figure 5, described deep water level plash comprises plash foundation ditch 10 and is arranged at the water storage tank 30 of plash foundation ditch 10 inside.Has drainage layer 40 between described plash foundation ditch inwall 18 and the water storage tank outer wall 38, described water storage tank inwall 38 has been built layer of concrete 34, described plash foundation ditch 10 tops have base arrangement 50, and described base arrangement 50 is carried on drainage layer 40 top and terminates in water storage tank outer wall 38.
Among the embodiment as shown in Figure 5, layer of concrete 40 is formed with nonvolatil plash 80.
As shown in Figure 6, one embodiment of the present of invention are that described layer of concrete 35 is full of in the water storage tank 30, is coated with base arrangement 53 on the described layer of concrete 35, forms without nonvolatil plash.This embodiment deep water level plash is used for bright draining, and the constructability base arrangement.
As shown in Figure 5, one embodiment of the present of invention are that described water storage tank 30 is steel.Water storage tank 30 can be any hard material with shear resistance, and it is preferred for it to adopt thicker steel material to make.Can prefabricatedly on the earth's surface together insert in the plash foundation ditch 10 with the drainage layer, drainage layer 40 is full of between plash foundation ditch inwall 18 and the water storage tank outer wall 38 by the mode of filling again, and the drainage layer should do reality as far as possible so that water storage tank 30 stable placements.
As shown in Figure 5, one embodiment of the present of invention are that described base arrangement 50 is tendon concrete structure.Reinforcing bar 51 and water storage tank outer wall 38 firm welding in the described base arrangement 50 avoid water storage tank 30 to be subjected to displacement in drainage layer 40.
As shown in Figure 5, one embodiment of the present of invention are, described water storage tank inwall 39 is welded with the water storage tank main reinforcement, described water storage tank main reinforcement is L-type, the one side weld is connected on the described water storage tank vertical inner wall, its another side is welded at the bottom of the described water storage tank on the inwall, consists of cage of reinforcement with the water storage tank inwall.Described layer of concrete 40 is built on described water storage tank main reinforcement skeleton basis and is formed.
As shown in Figure 5, one embodiment of the present of invention are that described water storage tank outer wall 38 is welded with seal ring 31 and 32 with base arrangement 50 corresponding positions.Water storage tank both sides inside and outside wall all is welded with seal ring.Underground water below the effect of welding seal ring herein is base arrangement pours in out by secondary concrete cast slit, junction, prolongs aquaporin, strengthens concrete permeability resistance.
As shown in Figure 5, a kind of embodiment of the present invention is that described water storage tank outer wall is provided with support member.Described support member is that " [" type 12 supports 2 roads, and the per pass overlap joint welds and hand over circle, prevents the water storage tank distortion.
As shown in Figure 5, a kind of embodiment of the present invention is, also comprises continuous underground wall structure 20, and described plash foundation ditch 10 1 sides link to each other with diaphragm wall 20.The effect of diaphragm wall 20 is supporting plash and base plate, as structural wall and anti-sealing infiltration etc.
As shown in Figure 5, a kind of embodiment of the present invention is, plash foundation ditch 10 is downslope away from another sidewall of diaphragm wall, works to be that excavation puts the slope, prevents that the earthwork from caving in.
A kind of embodiment of the present invention is that described drainage layer is clean fine stone, particle diameter 5-10mm.
As shown in Figure 8, one embodiment of the invention provide a kind of building ponding drainage system, at least build two deep water level plashs 100 at the building two ends, described deep water level plash 100 is above-described deep water level plash, connects by bright gutter 400 between the described deep water level plash 100.Have in the situation that does not possess the shear resistance ground, can effectively avoid the displacement of both sides building requiring deep water level plash place to build 300 both sides building 310 and 320.More specifically, described building 310 is railway line, and building 320 is silo, and building 300 is ores lifting belt line.
A kind of embodiment of the present invention is that institute states clearly to build on the gutter the casual water hole.Underground structure is long, and row is too late for the permanent plash of light utilization, is that institute states clearly to build on the gutter casual water hole is arranged, and closes inlet valve after the structural flooring construction is finished, and welded reinforcement, fluid concrete are connected whole floor, and the gutter connects.
Shown in Fig. 2 to 7, the present invention also provides a kind of deep water level plash job practices, comprise following construction sequence: construction of diaphragm wall, excavation forms the plash foundation pit construction, fill the drainage layer and insert water storage tank construction in place, by drainage layer draining and bottom slab concreting construction outside water storage tank water inlet, water storage tank, concreting layer construction in the water storage tank.
Construction of diaphragm wall comprises, constructs before digging foundation trench, do first the protection foundation trench suitable for reading lead wall, use mud off.Cage of reinforcement is placed in segmentation grooving construction, displaces slurry coat method with tremie concrete, forms one section reinforced concrete wall.Construct continuously piecemeal at last and become diaphragm wall.
Construction of diaphragm wall be mainly construction technologies such as leading wall, mud off, trenching construction, underwater concreting, the processing of wall section joint.Lead wall and be generally the on the spot reinforced concrete structure of perfusion.Main Function is: the physical dimension and the shape that guarantee the diaphragm wall design; Hold part mud, liquid level stabilizing when guaranteeing trenching construction; Bear the load of trench machine, protection notch Tu Bi does not destroy, and as the benchmark that cage of reinforcement is installed.Lead wall a little more than ground in case surface water flows into and affect quality of mud fluid.Mud off trenching construction concrete is wanted continous pouring and is measured filling concrete amount and lifting height.The mud that overflows is sent mud-settling pit back to.
Wall section joint is processed: diaphragm wall is to be formed by many wall section assembly groups, for keeping continuously construction between the wall section, joint adopts locking notch pipe technique, namely before perfusion groove section concrete, the steel pipe that a pre-inserted diameter and groove width equate in the end of groove section, be locking notch pipe, behind concrete initial set, steel pipe extracted slowly, make the end form half blind mortise shape and connect shape.Also with good grounds wall body structure stressed needs and rigid joint is set are so that latter two wall section unifies first.Underwater concreting adopts tremie method to be undertaken by the underwater concrete perfusion, but before beginning concrete perfusion with conduit for preventing that mud from sneaking into concrete, can in conduit, hang a pipe close, rely on the concrete pressure that pours into will manage interior mud and extrude.By mud cell wall is exerted pressure to protect the deep trouth shape invariance that scrapes out, concrete perfusion cements out mud.Mud materials is comprised of swell soil, water, chemical treatments and some inert substances usually.The effect of mud is to form fluid-tight mud skin at cell wall, thereby make the hydrostatic pressure of mud effectively act on the cell wall, prevent the infiltration of underground water and peeling off of cell wall, keep the stable of wall, simultaneously suspend in addition native slag and native slag is carried out the function on ground of mud.
As shown in Figure 2, a kind of embodiment of the present invention is, describedly be may further comprise the steps to water storage tank water inlet, the outer draining of water storage tank and bottom slab concreting construction by the drainage layer: intake to water storage tank 30 by drainage layer 40 by band gate water inlet pipe 60, pass through simultaneously water pump 72 and gutter 70 by water storage tank 30 outside drainings, simultaneously the construction except the water storage tank opening part base plate 50, treat that bottom slab concreting reaches the design strength percentage more than 80, then valve-off is pulled out drainage water pump 72 and gutter 70 behind the inspection leakproof.
As shown in Figure 5, a kind of embodiment of the present invention is that described water storage tank 30 interior concreting layer construction may further comprise the steps: weld main muscle at the water storage tank inwall, formwork also ties up reinforcing bar, and concreting forms plash.
As shown in Figure 6, a kind of embodiment of the present invention is that described water storage tank 30 interior concreting layer construction may further comprise the steps: weld main muscle at the water storage tank inwall, formwork also ties up reinforcing bar, builds full concrete in the water storage tank, fills up complete base plate on the water storage tank.
Embodiments of the invention provide a kind of deep water level plash, comprise plash foundation ditch and the water storage tank that is arranged at plash foundation ditch inside, be filled with the drainage layer between described plash foundation ditch inwall and the water storage tank outer wall, described water storage tank inwall has been built layer of concrete, described plash foundation ditch top has base arrangement, and described base arrangement is carried on drainage layer top and is fixedly connected with the water storage tank outer wall.Present embodiment forms special water tank by the deep water level plash and forms the ponding draining system, and is simple in structure firm, becomes water blockoff into hydrophobic, more adapts to multiple condition of construction.Specifically this kind plash can be convenient to adopt diaphragm wall technique---the semi-inverse method construction, and construction period is few, and cost is lower.More particularly require to have in the situation of ground and underground installation around the building, this plash can effectively avoid these facilities to be subjected to displacement.
Embodiments of the invention also provide a kind of deep water level plash job practices, by a kind of deep water level plash job practices, comprise following construction sequence: construction of diaphragm wall, the plash excavation, fill the drainage layer and insert water storage tank construction in place, by drainage layer draining and bottom slab concreting construction outside water storage tank water inlet, water storage tank, concreting layer construction in the water storage tank.This embodiment job practices becomes water blockoff into hydrophobic, and the duration is short, expense is low, can not stay hidden danger.Particularly adopt diaphragm wall technique at needs---the semi-inverse method construction is all the more so.More particularly require to have in the situation of ground and underground installation around the building, this plash job practices can effectively avoid these facilities to be subjected to displacement.
It should be noted that, although utilize the technical characterictic identical with concrete structural element etc. and embodiment and the figure of restriction that the present invention has been described, but this is just in order to help comprehend the present invention, the present invention is not limited to above-described embodiment, all can carry out numerous variations and distortion by above-mentioned record the those skilled in the art of the technical field of the invention.Therefore; thought of the present invention is not limited to embodiment described above; the understanding of the present invention should not only limit to the scope of claims record; also comprise with claim and being equal to or distortion of equal value; any change and distortion in this scope all should be considered to drop within protection scope of the present invention.
Claims (10)
1. deep water level plash, it is characterized in that, comprise plash foundation ditch and the water storage tank that is arranged at plash foundation ditch inside, be filled with the drainage layer between described plash foundation ditch inwall and the water storage tank outer wall, described water storage tank inwall has been built layer of concrete and has been formed plash, described plash foundation ditch top has base arrangement, and base arrangement is at water storage tank opening part opening, and described base arrangement is carried on drainage layer top and is fixedly connected with the water storage tank outer wall.
2. deep water level plash as claimed in claim 1 is characterized in that described layer of concrete is full of water storage tank, is coated with base arrangement on the described layer of concrete.
3. deep water level plash as claimed in claim 3, it is characterized in that described water storage tank inwall is welded with the water storage tank main reinforcement, described water storage tank main reinforcement is L-type, the one side weld is connected on the described water storage tank vertical inner wall, its another side is welded at the bottom of the described water storage tank on the inwall, and described layer of concrete is built on described water storage tank main reinforcement basis.
4. deep water level plash as claimed in claim 1 or 2 is characterized in that described water storage tank inwall, outer wall and base arrangement corresponding position are welded with seal ring.
5. deep water level plash as claimed in claim 1 or 2 characterized by further comprising continuous underground wall structure, and described plash foundation ditch one side links to each other with diaphragm wall.
6. deep water level plash as claimed in claim 1 or 2 is characterized in that described puddle foundation ditch is downslope away from another sidewall of diaphragm wall.
7. deep water level plash job practices, it is characterized in that comprising following construction sequence: construction of diaphragm wall, the plash excavation, fill the drainage layer and insert water storage tank construction in place, by drainage layer draining and bottom slab concreting construction outside water storage tank water inlet, water storage tank, concreting layer construction in the water storage tank.
8. deep water level plash job practices as claimed in claim 7, it is characterized in that describedly being may further comprise the steps to water storage tank water inlet, the outer draining of water storage tank and bottom slab concreting construction by the drainage layer: reached by water pump and gutter by the outside draining of water storage tank to the intake chamber water inlet by the drainage layer by band gate water inlet pipe, simultaneously the construction except the water storage tank opening part base plate, treat that bottom slab concreting reaches the design strength percentage more than 70, then valve-off is pulled out drainage behind the inspection leakproof.
9. deep water level plash job practices as claimed in claim 7, it is characterized in that the construction of concreting layer may further comprise the steps in the described water storage tank: weld main muscle at the water storage tank inwall, formwork also ties up reinforcing bar, and concreting forms plash.
10. deep water level plash job practices as claimed in claim 7, it is characterized in that the construction of concreting layer may further comprise the steps in the described water storage tank: weld main muscle at the water storage tank inwall, formwork also ties up reinforcing bar, builds full concrete in the water storage tank, fills up complete base plate on the water storage tank.
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| CN2012103758375A CN102888851A (en) | 2012-09-29 | 2012-09-29 | Deep water level plash and construction method thereof |
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| CN2012103758375A CN102888851A (en) | 2012-09-29 | 2012-09-29 | Deep water level plash and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252381A (en) * | 2020-10-26 | 2021-01-22 | 张家港宏昌钢板有限公司 | Valve table transformation device and transformation method |
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| CN201567582U (en) * | 2009-12-29 | 2010-09-01 | 中建城市建设发展有限公司 | Rainwater saving device of foundation pit |
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| CN102418347A (en) * | 2011-09-27 | 2012-04-18 | 天津住宅集团建设工程总承包有限公司 | Drainage construction method for blind drain and sump wells in deep foundation pit |
| CN202247920U (en) * | 2011-09-27 | 2012-05-30 | 天津住宅集团建设工程总承包有限公司 | Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit |
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2012
- 2012-09-29 CN CN2012103758375A patent/CN102888851A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265964A (en) * | 2005-03-24 | 2006-10-05 | Shimizu Corp | Drainage treatment method |
| CN201567582U (en) * | 2009-12-29 | 2010-09-01 | 中建城市建设发展有限公司 | Rainwater saving device of foundation pit |
| CN102182225A (en) * | 2011-04-13 | 2011-09-14 | 中建七局第三建筑有限公司 | Automatic foundation ground water collecting system |
| CN102418347A (en) * | 2011-09-27 | 2012-04-18 | 天津住宅集团建设工程总承包有限公司 | Drainage construction method for blind drain and sump wells in deep foundation pit |
| CN202247920U (en) * | 2011-09-27 | 2012-05-30 | 天津住宅集团建设工程总承包有限公司 | Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112252381A (en) * | 2020-10-26 | 2021-01-22 | 张家港宏昌钢板有限公司 | Valve table transformation device and transformation method |
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Application publication date: 20130123 |