CN204780959U - Underground structure precipitation well manger plate seals water structure - Google Patents
Underground structure precipitation well manger plate seals water structure Download PDFInfo
- Publication number
- CN204780959U CN204780959U CN201520400208.2U CN201520400208U CN204780959U CN 204780959 U CN204780959 U CN 204780959U CN 201520400208 U CN201520400208 U CN 201520400208U CN 204780959 U CN204780959 U CN 204780959U
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- China
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- housing
- dewatering well
- annular slab
- foundation ditch
- bed course
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Abstract
The utility model discloses an underground structure precipitation well manger plate seals water structure, the aboveground seal assembly that is provided with of precipitation, seal assembly is including the casing, the outside of casing is provided with the round breakwater, casing lower part cover is established on precipitation well outer wall, casing inboard middle part integrated into one piece has the annular slab, the outer loop portion of annular slab is sealed with shells inner wall, the inner ring portion of annular slab makes progress to extend and is formed with the outstanding pipe that link up about in the of one, the upper end of outstanding pipe is provided with threaded body, a sealed cap can revolve will give prominence to a tub top seal on threaded body, the annular slab, outstanding pipe and sealed cap cooperation separate casing inner chamber space sealing for upper and lower two parts, the casing lower part outside is fixed with the clamp plate, the tip of clamp plate outwards extends to in the soil of foundation ditch bed course below, fill in casing inner chamber space more than the annular slab has the sealing layer. The utility model has the advantages of simple structure, shutoff steady quality are reliable, block structure seals effectually with the foundation ditch bed course.
Description
Technical field
The utility model relates to construction technology in geotechnical engineering field, is specifically related to underground structure dewatering well dash seal water structure.
Background technology
Along with developing on an unprecedented scale of China's geotechnical engineering, China's base pit engineering quantity gets more and more, and scale is also increasing, the degree of depth of foundation ditch also along with and deepen, and the subsurface geology condition of complexity makes foundation pit dewatering science rise rapidly.Current, China is larger and the degree of depth is darker foundation ditch is more, after such pit earthwork excavation, after overburden layer more than pressure water head is die-offed, very easily Foundation Pit Pouring phenomenon occurs, and taking dewatering well to draw water is ensure that base plate of foundation pit resists to dash forward to gush stable effective ways.But the shutoff of the dewatering well of this type of foundation ditch is extremely difficult, this type of foundation ditch hydraulic pressure is large, the water yield large, once stop pumping, water level sharply rises, and Foundation Pit Pouring occurs, and produces buoyancy, affect normal construction to base plate of foundation pit.
Existing method for blocking first suction pump is put into dewatering well to draw water, when construction proceeds to a certain degree, be taken out by suction pump from dewatering well, only drinking-water pipe is put into dewatering well, meanwhile, inside dewatering well, weld an annular slab, reserve a hole in the middle of annular slab, pass for drinking-water pipe.After Foundation Design terminates, drinking-water pipe is extracted out from dewatering well, the eyelet welding in the middle of annular slab is dead, dewatering well is sealed.
But this method needs to carry out twice welding, any welding quality has problem all can cause sealing unsuccessfully, and welding process all needs manual operation, and difficult quality controls.
Utility model content
Technical problem to be solved in the utility model is for the above-mentioned state of the art, and provide that a kind of structure is simple, shutoff steady quality reliable, the dewatering well hermetically-sealed construction of plugging structure and foundation ditch bed course good sealing effect.
The utility model solves the problems of the technologies described above adopted technical scheme:
Underground structure dewatering well dash seal water structure, comprise the foundation ditch bed course being cast in dewatering well top, foundation ditch bed course reserves dewatering well indwelling mouth above dewatering well, wherein: dewatering well is provided with black box, black box includes housing, housing is the barrel-like structure of up/down perforation, the arranged outside of housing has a circle watertight shutter, the end of watertight shutter is outwards inserted in foundation ditch bed course, watertight shutter coordinates with housing seal, the space between housing and foundation ditch bed course is made to cut off for upper and lower two parts from watertight shutter place, lower housing portion is set on dewatering well outer wall, case inside integral middle forms annular slab, the outer portion of annular slab and inner walls seal, the internal ring portion of annular slab upwards extends to form the outstanding pipe of a up/down perforation, the upper end of outstanding pipe is provided with threaded body, one sealing cap can be spun on threaded body will give prominence to pipe top seal, annular slab, housing cavity space sealing is divided into upper and lower two parts by outstanding pipe and sealing cap cooperation, pressing plate is fixed with outside lower housing portion, the end of pressing plate extends out in the soil below foundation ditch bed course, housing cavity space more than annular slab is filled with sealant.
For optimizing technique scheme, the concrete measure taked also comprises:
Above-mentioned watertight shutter is horizontally disposed circulus, seals fixing, be inserted in foundation ditch bed course outside ring inside the ring of watertight shutter with case weld.
Above-mentioned watertight shutter is steel plate.
Above-mentioned black box is that steel material makes.
Above-mentioned sealant is layer of concrete.
Above-mentioned pressing plate horizontally outward extends.
Dewatering well hermetically-sealed construction of the present utility model, black box is adopted to be enclosed within dewatering well, by the pressing plate of black box bottom, black box is stablized, when waterborne in dewatering well is gushed, water produces impulse force upwards to black box, the end of pressing plate extends out in the soil below foundation ditch bed course, building on foundation ditch bed course and foundation ditch bed course can provide pressure for pressing plate, pressing plate is made to be fixed on dewatering well firmly, simultaneously, housing cavity space more than annular slab is filled with sealant, case inside integral middle forms annular slab, material is thus formed sealing dual fail-safe: first floor sealing is that sealing cap can be spun on threaded body and will give prominence to pipe top seal, if sealing cap does not have outstanding pipe to be sealed completely, then second layer sealing is worked, housing cavity space more than annular slab is filled by sealant, become a compact structure, water can be stopped gush out from black box, thus reach can effective shutoff dewatering well, the reliable object of shutoff steady quality.Meanwhile, annular slab conveniently seals by the utility model, arranges outstanding pipe at annular slab internal ring portion, outstanding Guan Shangshe gas thread, and such shutoff annular slab is just very convenient, as long as have the sealing cap of corresponding internal thread can realize sealing with one.Find in practice of construction, except having underground water overflow in dewatering well, also have water in soil to ooze out, especially long-term overcast and rainy, water can ooze out between housing and foundation ditch bed course, and the utility model is provided with a circle watertight shutter in hull outside, separate between housing and foundation ditch bed course up and down, underground water can not be oozed out between housing and foundation ditch bed course, and it is waterborne excessive that the utility model can stop dewatering well, and the water also can stopped in soil overflows between housing and foundation ditch bed course.
Accompanying drawing explanation
Fig. 1 is the dewatering well structural representation not arranging the first black box and the second black box;
Fig. 2 is the dewatering well structural representation arranging black box;
Fig. 3 is structural representation of the present utility model.
Wherein, Reference numeral is: foundation ditch bed course 1, dewatering well 2, dewatering well indwelling mouth 3, black box 4, housing 41, annular slab 42, outstanding pipe 43, threaded body 44, sealing cap 45, pressing plate 46, sealant 5.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Underground structure dewatering well dash seal water structure, comprise the foundation ditch bed course 1 being cast in dewatering well 2 top, foundation ditch bed course 1 reserves dewatering well indwelling mouth 3 above dewatering well 2, wherein: dewatering well 2 is provided with black box 4, black box 4 includes housing 41, housing 41 is the barrel-like structure of up/down perforation, the arranged outside of housing 41 has a circle watertight shutter 47, the end of watertight shutter 47 is outwards inserted in foundation ditch bed course 1, watertight shutter 47 and housing 41 are sealed and matched, the space between housing 41 and foundation ditch bed course 1 is made to cut off for upper and lower two parts from watertight shutter 47 place, housing 41 bottom is set on dewatering well 2 outer wall, housing 41 middle inside is one-body molded annular slab 42, the outer portion of annular slab 42 and housing 41 inner wall sealing, the internal ring portion of annular slab 42 upwards extends to form the outstanding pipe 43 of a up/down perforation, the upper end of outstanding pipe 43 is provided with threaded body 44, one sealing cap 45 can be spun on threaded body 44 will give prominence to pipe 43 top seal, annular slab 42, it is upper and lower two parts that outstanding pipe 43 and sealing cap 45 coordinate housing 41 intracavity space sealed separation, housing 41 lower outside is fixed with pressing plate 46, the end of pressing plate 46 extends out in the soil below foundation ditch bed course 1, housing 41 intracavity space of annular slab more than 42 is filled with sealant 5.
In embodiment, watertight shutter 47 is horizontally disposed circulus, fixes, be inserted in foundation ditch bed course 1 outside ring inside the ring of watertight shutter 51 with housing 41 welded seal.
In embodiment, watertight shutter 47 is steel plate.
In embodiment, black box 4 is steel material making.
In embodiment, sealant 5 is layer of concrete.
In embodiment, pressing plate 46 horizontally outward extends.
Using method of the present utility model is as follows: after pit earthwork excavation, suction pump is put into dewatering well 2 and draw water, and keeps water level to be in safe altitude, as shown in Figure 1; Then normal construction is carried out, when construction proceeds to a certain degree, intensity of drawing water can suitably reduce, and is at this moment taken out from dewatering well 2 by suction pump, is placed on by black box 4 on dewatering well 2, the outer rim welding one circle watertight shutter 47 of housing 41, pressing plate 46 level inserted in soil, outstanding pipe 43 wouldn't seal, and drinking-water pipe passes from outstanding pipe 43, stretch in dewatering well 2 and draw water, as shown in Figure 2; Along with the carrying out of construction, when no longer needing dewatering well 2 to draw water, drinking-water pipe is extracted out from dewatering well 2, sealing cap 45 is spun on outstanding pipe 43, dewatering well is sealed, build foundation ditch bed course 1, the outer ring of watertight shutter 47 is made to insert in foundation ditch bed course 1 watertight shutter 47 by spatially separating down between housing 41 and foundation ditch bed course 1, prevent underground water from overflowing between housing 41 and foundation ditch bed course 1, housing 41 intracavity space of annular slab more than 42 is filled with sealant 5, by dewatering well secondary seal, as shown in Figure 3.
Below be only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, not departing from the some improvements and modifications under the utility model principle prerequisite, protection domain of the present utility model should be considered as.
Claims (6)
1. underground structure dewatering well dash seal water structure, comprise the foundation ditch bed course (1) being cast in dewatering well (2) top, foundation ditch bed course (1) reserves dewatering well indwelling mouth (3) in dewatering well (2) top, it is characterized in that: described dewatering well (2) is provided with black box (4), described black box (4) includes housing (41), the barrel-like structure that described housing (41) is up/down perforation, the arranged outside of housing (41) has a circle watertight shutter (47), the end of described watertight shutter (47) is outwards inserted in foundation ditch bed course (1), described watertight shutter (47) and housing (41) are sealed and matched, the space between housing (41) and foundation ditch bed course (1) is made to cut off for upper and lower two parts from watertight shutter (47) place, described housing (41) bottom is set on dewatering well (2) outer wall, described housing (41) middle inside is one-body molded annular slab (42), the outer portion of described annular slab (42) and housing (41) inner wall sealing, the internal ring portion of annular slab (42) upwards extends to form the outstanding pipe (43) of a up/down perforation, the upper end of described outstanding pipe (43) is provided with threaded body (44), one sealing cap (45) can be spun on threaded body (44) above will give prominence to pipe (43) top seal, described annular slab (42), it is upper and lower two parts that outstanding pipe (43) and sealing cap (45) coordinate housing (41) intracavity space sealed separation, described housing (41) lower outside is fixed with pressing plate (46), the end of described pressing plate (46) extends out in the soil of foundation ditch bed course (1) below, housing (41) intracavity space more than described annular slab (42) is filled with sealant (5).
2. underground structure dewatering well dash seal water structure according to claim 1, it is characterized in that: described watertight shutter (47) is horizontally disposed circulus, fix with housing (41) welded seal inside the ring of watertight shutter (51), be inserted into outside ring in foundation ditch bed course (1).
3. underground structure dewatering well dash seal water structure according to claim 1, is characterized in that: described watertight shutter (47) is steel plate.
4. underground structure dewatering well dash seal water structure according to claim 1, is characterized in that: described black box (4) is steel material making.
5. underground structure dewatering well dash seal water structure according to claim 2, is characterized in that: described sealant (5) is layer of concrete.
6. underground structure dewatering well dash seal water structure according to claim 3, is characterized in that: described pressing plate (46) horizontally outward extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520400208.2U CN204780959U (en) | 2015-06-11 | 2015-06-11 | Underground structure precipitation well manger plate seals water structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520400208.2U CN204780959U (en) | 2015-06-11 | 2015-06-11 | Underground structure precipitation well manger plate seals water structure |
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| Publication Number | Publication Date |
|---|---|
| CN204780959U true CN204780959U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520400208.2U Expired - Fee Related CN204780959U (en) | 2015-06-11 | 2015-06-11 | Underground structure precipitation well manger plate seals water structure |
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| CN (1) | CN204780959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100181A (en) * | 2017-05-09 | 2017-08-29 | 黄坤坤 | " being cheated in hole " two grades of relay precipitation systems and its method for blocking |
-
2015
- 2015-06-11 CN CN201520400208.2U patent/CN204780959U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100181A (en) * | 2017-05-09 | 2017-08-29 | 黄坤坤 | " being cheated in hole " two grades of relay precipitation systems and its method for blocking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180611 |