CN202081425U - Water-saving mechanism for foundation pit water of building construction - Google Patents
Water-saving mechanism for foundation pit water of building construction Download PDFInfo
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- CN202081425U CN202081425U CN2011201668638U CN201120166863U CN202081425U CN 202081425 U CN202081425 U CN 202081425U CN 2011201668638 U CN2011201668638 U CN 2011201668638U CN 201120166863 U CN201120166863 U CN 201120166863U CN 202081425 U CN202081425 U CN 202081425U
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- sandpipe
- water conduit
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Abstract
The utility model relates to a water-saving mechanism for the foundation pit water of building construction, wherein a well pit is dug downwards in the middle of a foundation pit of a bottom plate structure, and a non-sand pipe is vertically arranged in the well pit; sand gravel is filled between the bottom and the periphery of the non-sand pipe and the well pit, and the top of the non-sand pipe is higher than the top surface of the well pit; a water pump is arranged in the non-sand pipe, and foundation cushion layer concrete is poured at the top surface of the well pit around the non-sand pipe and the side wall of the foundation pit of the bottom plate structure; the elevation of the top of the non-sand pipe is at the same level as the elevation of the foundation cushion layer concrete, and a water guide pipe is preburied in a foundation pit bottom plate which is arranged right above the non-sand pipe; a waterproof layer is laid on the foundation cushion layer concrete, and a layer of waterproof protective layer concrete is poured on the waterproof layer; and the foundation pit bottom plate is poured above the waterproof protective layer concrete and around the water guide pipe. The utility model has the advantages of smaller investment, cost saving, capability of reducing underground water losses, protection of water resources and long-term values in use and popularization.
Description
Technical field
The utility model relates to the device of foundation ditch water in a kind of construction work, particularly relates to a kind of building operations foundation ditch water water-saving mechanism.
Background technology
For a long time, most of foundation ditches adopt well-points dewatering, cause serious water resource waste, are the protection groundwater resources, and " construction project construction precipitation management method " issued in relevant city.Should " way " require newly-started all kinds of engineerings to limit the precipitation of constructing, should adopt curtain water proof method, and cut off underground water and enter construction area.In addition, current town site anxiety, surrounding building is apart from compactness, and for guaranteeing safety, majority can only adopt the mode of curtain water proof.Therefore the curtain water proof will be the main mode of following engineering dewatering construction.But when adopting curtain water proof method to carry out dewatering construction, in the foundation ditch scope because water, ground water pressure are excessive, be subjected to factor affecting such as reverse osmosis water, Pluvial construction precipitation, structure foundation ditch such as elevator shaft, fire pump hole, foul water pump hole and even foundation trench bottom still have a large amount of seeping phenomenons, bring a new difficult problem to construction.
The utility model content
The purpose of this utility model provides a kind of building operations foundation ditch water water-saving mechanism, solve existing foundation ditch water job practices, causes water resource waste serious, the technical problem that foundation ditch water effect is bad.
For achieving the above object, the utility model adopts following technical scheme:
A kind of building operations foundation ditch water water-saving mechanism, in the middle part of the board structure foundation ditch, dig downwards and establish well, the vertical placement has or not sandpipe in the well, no sandpipe bottom reaches on every side and between the well and is filled with sandy gravel, no sandpipe top exceeds well item face, and water pump places no sandpipe, the well end face around no sandpipe, and the board structure foundation pit side-wall built blinding concrete, and no sandpipe top absolute altitude flushes with the blinding concrete absolute altitude; Water conduit is embedded in the base plate of foundation pit directly over the no sandpipe in advance; the water conduit bottom support is on blinding concrete; the top is higher than the base plate of foundation pit end face; cross section along water conduit top is welded with a circle seal ring; be equipped with waterproofing course on the blinding concrete, waterproofing course is along turning over the sealing suitable for reading of waterproofing course on the water conduit tube wall; built one deck waterproofing protection layer concrete on the waterproofing course, the above water conduit that reaches of waterproofing protection layer concrete is built base plate of foundation pit on every side.
But water conduit sidewall along the circumferential direction vertical welding is connected to anchor bar.
The processing length of water conduit can be sole plate thickness+50mm+ waterproofing layer thickness+waterproofing protection layer thickness.
Water conduit can tangentially be placed with four hole reinforcing ribs respectively up and down along the hole.
Inner corner trim place between water conduit and the blinding concrete is equipped with the waterproof extra play.
Compared with prior art the utlity model has following characteristics and beneficial effect:
The utility model is to adopt, the method of the built-in steel cylindrical shape of pre-buried no sandpipe and bottom water conduit is constructed under the structure foundation ditch, can carry out the construction of sole plate simultaneously, at the pre-buried no sandpipe in structure foundation ditch bottom, around the no sandpipe is sandy gravel, play permeable effect, no sandpipe can adopt general water pipe, porous, water around making concentrates in the pipe, will not have the interior pre-buried cylindrical water conduit of structure base plate of foundation pit on the sandpipe, and conduit exceeds base plate 50mm, when preventing the bottom slab concreting concrete, concrete falls in the conduit; Seal ring can play the sealing effect; Anchor bar fixing steel cylindrical shape water conduit when the base plate reinforcing bar binding is anchored in water conduit in the underplate concrete structure, and as for drawing water in the no sandpipe, can safeguard at any time, can guarantee the continuity of water by water pump by steel cylindrical shape water conduit for water pump; Can carry out bed course, waterproofing course, fish tail and waterproof layer, sole plate reinforcing bar binding and underplate concrete construction simultaneously.
Adopt sandy gravel that no sandpipe is carried out shutoff at last, can prevent to occur under the base plate inhomogeneous bearing stratum; Adopt the leak stopping spirit that steel cylindrical shape water conduit is carried out shutoff, can play the sealing waterproof effect; With the grouting material steel cylindrical shape water conduit is carried out shutoff, the workability of grouting material can make steel cylindrical shape water conduit inside build tightly, the dilatancy of grouting material, all combined closely in steel cylindrical shape water conduit and inside and outside, become as a whole with the structure base plate, the leakproofness of shutoff can effectively prevent Leakage of groundwater.
The utility model adopts foundation ditch water water saving job practices to carry out the base plate foundation pit construction, has solved the problem of foundation ditch internal water conscientiously, can be when carrying out the foundation trench construction, ponding in the foundation ditch is discharged, remedy the deficiency of curtain water proof construction, the water conservancy of the interior extraction of foundation ditch simultaneously uses very convenient, can be used for the maintenance of underplate concrete, the depositing dust of building-site, a turnover vehicle is scrubbed etc., saved water resource, and water pump can be safeguarded at any time, the water saving continuity is good, has effectively shortened the duration; The utility model drops into less, saves cost, can reduce phreatic loss, and the protection water resource has long-range use promotional value.
Description of drawings
Fig. 1, a kind of building operations foundation ditch of the utility model water water-saving mechanism, the sectional drawing of board structure foundation ditch water water saving.
Fig. 2, a kind of building operations foundation ditch of the utility model water water-saving mechanism, the sectional drawing of pre-buried no sandpipe.
Fig. 3, a kind of building operations foundation ditch of the utility model water water-saving mechanism, the longitudinal plan of water conduit structure.
Fig. 4, a kind of building operations foundation ditch of the utility model water water-saving mechanism, the plan structure schematic diagram of water conduit.
Fig. 5, a kind of building operations foundation ditch of the utility model water water-saving mechanism, the schematic diagram that waterproof roll is laid.
The schematic diagram of additional bar around Fig. 6, a kind of building operations foundation ditch of the utility model water water-saving mechanism, water conduit.
Fig. 7, a kind of building operations foundation ditch of the utility model water water-saving mechanism, the schematic diagram of foundation ditch shutoff.
Reference numeral: 1, water conduit, 2, seal ring, 3, anchor bar; 4, water pump, 5, no sandpipe, 6, sandy gravel; 7, original soil, 8, base plate of foundation pit, 9, the waterproofing protection layer concrete; 10, waterproofing course, 11, blinding concrete, 12, the waterproof extra play; 14, leak stopping spirit, 15, grouting material, 16, the board structure foundation ditch; 17, well, 18, the hole reinforcing rib, 19, no sandpipe shutoff sandy gravel.
The specific embodiment
Embodiment is referring to Fig. 1; shown in Figure 2; a kind of building operations foundation ditch water water-saving mechanism; dig 7 ones of the downward original soils in board structure foundation ditch 16 middle parts and to establish well 17; fill out the thick sandy gravel 6 of 200mm in the well; vertically be placed with the high ￠ 300mm of 600mm on the sandy gravel in the well 17 and do not have sandpipe 5; no sandpipe 5 is filled with sandy gravel on every side and between the well 17; no sandpipe 5 tops exceed well 17 end faces; water pump 4 places no sandpipe 5; well 17 end faces around no sandpipe 5; and the board structure foundation pit side-wall has been built blinding concrete 11; no sandpipe 5 top absolute altitudes flush with blinding concrete 11 absolute altitudes; water conduit 1 is embedded in the base plate of foundation pit 8 directly over the no sandpipe 5 in advance; water conduit 1 bottom support is on blinding concrete 11; the top is higher than the base plate of foundation pit end face; the processing length of water conduit 1 is: sole plate thickness+50mm+ waterproofing layer thickness+waterproofing protection layer thickness; be equipped with waterproofing course 10 on the blinding concrete 11; 300mm is high to be laid waterproofing course 10 along turning on water conduit 1 tube wall; the sealing suitable for reading of waterproofing course 10; built the thick waterproofing protection layer concrete 9 of one deck 50ram on the waterproofing course 10, the waterproofing protection layer concrete is built base plate of foundation pit 8 more than 9 and around the water conduit 1.
Referring to Fig. 3, shown in Figure 4, water conduit 1 is by internal diameter ￠ 400mm, the steel pipe of wall thickness 8mm is processed into, cross section along water conduit 1 apart from 200m suitable for reading place is welded with one, and to enclose 8m thick, the steel plate water-stopping ring 2 that 200mm is wide, water conduit sidewall along the circumferential direction vertical welding is connected to eight ￠ 12mm anchor bars 3, and reinforcing bar length is 500mm, plays the effect of anchoring water conduit 1.
Referring to shown in Figure 5, the inner corner trim place between water conduit 1 and blinding concrete 11 is equipped with waterproof extra play 12.
Referring to shown in Figure 6, because the reinforcing bar of steel cylindrical shape water conduit 1 part is cut off, water conduit 1 tangentially is placed with four hole reinforcing ribs 18 up and down respectively along the hole.
The step of this foundation ditch water water saving construction is referring to Fig. 1--shown in 7:
Step 1, dig 7 ones of the downward original soils in board structure foundation ditch 16 middle parts and to establish well 17, insert sandy gravel 6 in the well bottom, and vertically on sandy gravel place no sandpipe 5, no sandpipe 5 tops exceed well 17 end faces, back-up sand cobble 6 places no sandpipe 5 to draw water on water pump 4 to well 17 end faces around no sandpipe;
Step 7 is built sole plate 8 concrete, from slowly blanking all around, prevents water conduit 1 compression deflection; Water conduit 1 top is higher than base plate of foundation pit 8 end faces, suitable for readingly uses the template capping, prevents that underplate concrete from falling in the water conduit 1.
Step a, excision water conduit 1 exceed the 50mm of sole plate end face;
Step b, will not have after water in the sandpipe 5 drain, take out water pump 4, in no sandpipe 5, insert no sandpipe 5 shutoff with sandy gravel 19, and push up with no sandpipe 5 and flush, and will not have sandpipe 5 shutoff sandy gravel 19 compactings;
Step c, cover the thick leak stopping spirit 14 of one deck 100mm successively in the water conduit above the sandy gravel 19 1 in no sandpipe 5 shutoff, build the high strength contraction-free grouting concrete 15 of CGM-1 again, cover the thick leak stopping spirit 14 of one deck 100mm at last again, higher in the shutoff construction as groundwater table, water conduit 1 top is tight with steel plate shutoff weldering.
Claims (5)
1. building operations foundation ditch water water-saving mechanism, in the middle part of the board structure foundation ditch, dig downwards and establish well, the vertical placement has or not sandpipe in the well, no sandpipe bottom reaches on every side and between the well and is filled with sandy gravel, no sandpipe top exceeds well item face, and water pump places no sandpipe, the well end face around no sandpipe, and the board structure foundation pit side-wall built blinding concrete, and no sandpipe top absolute altitude flushes with the blinding concrete absolute altitude; Water conduit is embedded in the base plate of foundation pit directly over the no sandpipe in advance; the water conduit bottom support is on blinding concrete; the top is higher than the base plate of foundation pit end face; cross section along water conduit top is welded with a circle seal ring; be equipped with waterproofing course on the blinding concrete, waterproofing course is along turning over the sealing suitable for reading of waterproofing course on the water conduit tube wall; built one deck waterproofing protection layer concrete on the waterproofing course, the above water conduit that reaches of waterproofing protection layer concrete is built base plate of foundation pit on every side.
2. a kind of building operations foundation ditch water water-saving mechanism according to claim 1 is characterized in that: but the water conduit sidewall along the circumferential direction vertical welding be connected to anchor bar.
3. a kind of building operations foundation ditch water water-saving mechanism according to claim 1 is characterized in that: the processing length of water conduit can be sole plate thickness+50mm+ waterproofing layer thickness+waterproofing protection layer thickness.
4. a kind of building operations foundation ditch water water-saving mechanism according to claim 1 is characterized in that: water conduit can tangentially be placed with four hole reinforcing ribs respectively up and down along the hole.
5. a kind of building operations foundation ditch water water-saving mechanism according to claim 1, it is characterized in that: the inner corner trim place between water conduit and the blinding concrete is equipped with the waterproof extra play.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201668638U CN202081425U (en) | 2011-05-24 | 2011-05-24 | Water-saving mechanism for foundation pit water of building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201668638U CN202081425U (en) | 2011-05-24 | 2011-05-24 | Water-saving mechanism for foundation pit water of building construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081425U true CN202081425U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201668638U Expired - Fee Related CN202081425U (en) | 2011-05-24 | 2011-05-24 | Water-saving mechanism for foundation pit water of building construction |
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| Country | Link |
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| CN (1) | CN202081425U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797261A (en) * | 2012-08-13 | 2012-11-28 | 云南工程建设总承包公司 | Bearing platform water stopping structure |
| CN104075077A (en) * | 2014-06-10 | 2014-10-01 | 北京豪特耐管道设备有限公司 | Heat insulating material for repairing heat pipeline and preparation method and application thereof |
-
2011
- 2011-05-24 CN CN2011201668638U patent/CN202081425U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797261A (en) * | 2012-08-13 | 2012-11-28 | 云南工程建设总承包公司 | Bearing platform water stopping structure |
| CN104075077A (en) * | 2014-06-10 | 2014-10-01 | 北京豪特耐管道设备有限公司 | Heat insulating material for repairing heat pipeline and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140524 |