CN204662468U - A kind of dewatering well structure being convenient to seal - Google Patents
A kind of dewatering well structure being convenient to seal Download PDFInfo
- Publication number
- CN204662468U CN204662468U CN201520335448.9U CN201520335448U CN204662468U CN 204662468 U CN204662468 U CN 204662468U CN 201520335448 U CN201520335448 U CN 201520335448U CN 204662468 U CN204662468 U CN 204662468U
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- Prior art keywords
- ring
- housing
- dewatering well
- seal
- annular slab
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Abstract
The utility model discloses a kind of dewatering well structure being convenient to seal, include housing, housing is the barrel-like structure of up/down perforation, the arranged outside of housing has a circle watertight shutter, watertight shutter makes the space between housing and foundation ditch bed course cut off for upper and lower two parts from watertight shutter place, case inside integral middle forms annular slab, the internal ring portion of annular slab is provided with a seal mouth ring, seal mouth ring is for having certain thickness circulus, screw thread is provided with inside the ring of seal mouth ring, be formed in one outside the ring of seal mouth ring with inside the ring of annular slab, seal mouth ring is combined with sealing cap, sealing cap is screwed in inside the ring of seal mouth ring by cap post and realizes the sealing with seal mouth ring, housing cavity space more than annular slab is filled with sealant.The utility model has that structure is simple, shutoff steady quality reliable, plugging structure and foundation ditch bed course good sealing effect, dewatering well seal advantage easily.
Description
Technical field
The utility model relates to construction technology in geotechnical engineering field, is specifically related to a kind of dewatering well structure being convenient to seal.
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, plugging structure and foundation ditch bed course good sealing effect, dewatering well seal dewatering well hermetically-sealed construction easily.
The utility model solves the problems of the technologies described above adopted technical scheme:
A kind of dewatering well structure being convenient to seal, 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 is provided with a seal mouth ring, seal mouth ring is for having certain thickness circulus, screw thread is provided with inside the ring of seal mouth ring, seal mouth ring ring outside with the ring of annular slab inside be formed in one, seal mouth ring is combined with sealing cap, sealing cap is made up of cap handle and cap post, cap post is provided with the threaded body suitable with screw thread, sealing cap is screwed in inside the ring of seal mouth ring by cap post and realizes the sealing with seal mouth ring, housing cavity space sealing is divided into upper and lower two parts by annular slab, housing cavity space wherein more than annular slab is filled with sealant, pressing plate is fixed with outside lower housing portion, the end of pressing plate extends out in the soil below foundation ditch bed course.
For optimizing technique scheme, the concrete measure taked also comprises:
Space fill concrete between the external surface of above-mentioned housing and dewatering well indwelling mouth.
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 sealant is layer of concrete.
Above-mentioned pressing plate horizontally outward extends.
During being sealed and matched of above-mentioned sealing cap and seal mouth ring, cap handle is pressed on annular slab, and cap handle is fixed as one by welding and annular slab.
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 seal mouth ring and sealed by annular slab, if sealing cap does not have annular slab 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.Simultaneously, annular slab conveniently seals by the utility model, at annular slab internal ring portion, seal mouth ring is set, seal mouth ring, for having certain thickness circulus, is provided with screw thread inside the ring of seal mouth ring, seal mouth ring ring outside with the ring of annular slab inside be formed in one, after this seal mouth ring is set, originally level and smooth annular slab internal ring wall just becomes screwed ring cavity, and the thickness of this ring cavity is greater than annular slab internal ring wall, easier fixing seal plug.The utility model use plug be a T-shaped sealing cap, not only cap post and annular slab thread seal, cap handle also with annular slab upper surface welded seal, sealing performance is better.
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.Further, the space fill concrete of the utility model also between the external surface and dewatering well indwelling mouth of housing.Make that the water in soil is more difficult to be overflowed between housing and foundation ditch bed course.
To sum up, the utility model has that structure is simple, shutoff steady quality reliable, plugging structure and foundation ditch bed course good sealing effect, dewatering well seal advantage easily.
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, seal mouth ring 43, watertight shutter 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.
A kind of dewatering well structure being convenient to seal, 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 44, the end of watertight shutter 44 is outwards inserted in foundation ditch bed course 1, watertight shutter 44 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 44 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 is provided with a seal mouth ring 43, seal mouth ring 43 is for having certain thickness circulus, screw thread is provided with inside the ring of seal mouth ring 43, seal mouth ring 43 ring outside with the ring of annular slab 42 inside be formed in one, seal mouth ring 43 is combined with sealing cap 45, sealing cap 45 is made up of cap handle and cap post, cap post is provided with the threaded body suitable with screw thread, sealing cap 45 is screwed in inside the ring of seal mouth ring 43 by cap post and realizes the sealing with seal mouth ring 43, housing 41 intracavity space sealed separation is upper and lower two parts by annular slab 42, wherein housing 41 intracavity space of annular slab more than 42 is filled with sealant 5, 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.
In embodiment, the space fill concrete between the external surface of housing 41 and dewatering well indwelling mouth 3.
In embodiment, watertight shutter 44 is horizontally disposed circulus, fixes, be inserted in foundation ditch bed course 1 outside ring inside the ring of watertight shutter 44 with housing 41 welded seal.
In embodiment, watertight shutter 44 is steel plate.
In embodiment, sealant 5 is layer of concrete.
In embodiment, pressing plate 46 horizontally outward extends.
In embodiment, during being sealed and matched of sealing cap 45 and seal mouth ring 43, cap handle is pressed on annular slab 42, and cap handle is fixed as one by welding and annular slab 42.
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 44 of housing 41, pressing plate 46 level inserted in soil, seal mouth ring 43 wouldn't seal, and drinking-water pipe passes from seal mouth ring 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 seal mouth ring 43, the cap handle of sealing cap 45 is welded on annular slab 42, and then dewatering well is sealed, build foundation ditch bed course 1, the outer ring of watertight shutter 44 is made to insert in foundation ditch bed course 1, watertight shutter 44 is 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 (7)
1. be convenient to the dewatering well structure of sealing for one kind, 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 (44), the end of described watertight shutter (44) is outwards inserted in foundation ditch bed course (1), described watertight shutter (44) 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 (44) 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) is provided with a seal mouth ring (43), described seal mouth ring (43) is for having certain thickness circulus, screw thread () is provided with inside the ring of seal mouth ring (43), described seal mouth ring (43) ring outside with the ring of annular slab (42) inside be formed in one, described seal mouth ring (43) is combined with sealing cap (45), described sealing cap (45) is made up of cap handle and cap post, described cap post is provided with the threaded body suitable with screw thread (), described sealing cap (45) is screwed in inside the ring of seal mouth ring (43) by cap post and realizes the sealing with seal mouth ring (43), housing (41) intracavity space sealed separation is upper and lower two parts by described annular slab (42), housing (41) intracavity space wherein more than annular slab (42) is filled with sealant (5), 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.
2. a kind of dewatering well structure being convenient to seal according to claim 1, is characterized in that: the space fill concrete between the external surface of described housing (41) and dewatering well indwelling mouth (3).
3. a kind of dewatering well structure being convenient to seal according to claim 2, it is characterized in that: described watertight shutter (44) is horizontally disposed circulus, fix with housing (41) welded seal inside the ring of watertight shutter (44), be inserted into outside ring in foundation ditch bed course (1).
4. a kind of dewatering well structure being convenient to seal according to claim 3, is characterized in that: described watertight shutter (44) is steel plate.
5. a kind of dewatering well structure being convenient to seal according to claim 4, is characterized in that: described sealant (5) is layer of concrete.
6. a kind of dewatering well structure being convenient to seal according to claim 5, is characterized in that: described pressing plate (46) horizontally outward extends.
7. a kind of dewatering well structure being convenient to seal according to claim 6, it is characterized in that: during being sealed and matched of described sealing cap (45) and seal mouth ring (43), cap handle is pressed on annular slab (42), and described cap handle is fixed as one by welding and annular slab (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335448.9U CN204662468U (en) | 2015-05-22 | 2015-05-22 | A kind of dewatering well structure being convenient to seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335448.9U CN204662468U (en) | 2015-05-22 | 2015-05-22 | A kind of dewatering well structure being convenient to seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204662468U true CN204662468U (en) | 2015-09-23 |
Family
ID=54132864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520335448.9U Expired - Fee Related CN204662468U (en) | 2015-05-22 | 2015-05-22 | A kind of dewatering well structure being convenient to seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204662468U (en) |
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2015
- 2015-05-22 CN CN201520335448.9U patent/CN204662468U/en not_active Expired - Fee Related
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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: 20150923 Termination date: 20180522 |