CN209837071U - Damage-free deep foundation pit pipe well operation closed bottom plate structure - Google Patents
Damage-free deep foundation pit pipe well operation closed bottom plate structure Download PDFInfo
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- CN209837071U CN209837071U CN201920499685.7U CN201920499685U CN209837071U CN 209837071 U CN209837071 U CN 209837071U CN 201920499685 U CN201920499685 U CN 201920499685U CN 209837071 U CN209837071 U CN 209837071U
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Abstract
The utility model discloses a nondestructive deep foundation pit pipe well operation closed bottom plate structure, which comprises a precipitation well and is characterized in that the precipitation well comprises a structural bottom plate, a cushion layer, a steel cover plate, a water pumping pipe, a steel tray, a well pipe, a permeable material and a self-priming pump; the utility model discloses a well casing, including well casing, bed course, steel apron, water tray, water pumping pipe, well casing, well. The utility model discloses avoided because of the groundwater seepage condition that concrete secondary pouring arouses, structural integrity is better, has shortened construction period, has improved work efficiency.
Description
Technical Field
The utility model relates to a precipitation well shut-in system, concretely relates to not damaged deep basal pit tubular well operation closed bottom plate structure.
Background
In the foundation pit engineering, before the underground structure is constructed to +/-0, in order to meet the anti-floating requirement, the foundation pit still needs to continuously reduce water, and therefore after the underground structure is constructed to +/-0, the well sealing of the dewatering well is needed. The conventional nondestructive closed bottom plate structure for the pipe well operation of the deep foundation pit is constructed in such a way that a well sealing material consists of a steel pipe and a permeable steel plate, a permeable material is backfilled on the lower layer in the precipitation well, quick-setting concrete is backfilled on the upper part, and concrete is poured in the steel pipe for the second time, so that the underground water leakage risk exists at the position.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a not damaged deep basal pit tubular well operation closed bottom plate structure.
In order to achieve the technical effects, the invention adopts the technical scheme that:
a pipe well operation closed bottom plate structure of a nondestructive deep foundation pit comprises a precipitation well and is characterized in that the precipitation well comprises a structure bottom plate, a cushion layer, a steel cover plate, a water pumping pipe, a steel tray, a well pipe, a permeable material and a self-priming pump; the utility model discloses a well casing, including well casing, bed course, steel cover plate, well casing, steel tray, pumping pipe, foundation pit edge and self priming pump, structure bottom plate below is all located with the well casing to the bed course, and the well casing upper surface is kept level with the bed course bottom, the steel cover plate is located the bed course lower extreme to cover the well casing mouth of pipe completely, the material that permeates water fills in the inside bottom of well casing, steel tray overall dimension is the same with the overall dimension of well casing inner wall cross section, and the steel tray is located the well casing inside and is located the material top that permeates water, all be equipped with on steel cover plate and the steel tray with pumping pipe external diameter assorted through-hole, pumping pipe.
Furthermore, the well pipe is a round pipe, the steel cover plate is of a round, rectangular or square flat plate structure, and the centers of the steel cover plate and the steel tray are aligned.
Furthermore, the drinking-water pipe sealing connection steel apron and steel tray.
Further, the water permeable material is a melon seed slice or sand with good gradation.
Furthermore, the drinking-water pipe is PVC hose, PPR pipe, iron pipe or steel pipe.
Further, slurry is filled between the steel cover plate and the steel tray.
Further, the slurry is micro-expansion concrete or cement mortar.
Compared with the prior art, the invention has the beneficial effects that:
1. the structural bottom plate concrete is poured once, and the structural integrity is better. The underground water leakage caused by the secondary pouring of concrete is avoided.
2. The construction period is shortened, and the working efficiency is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments, and it is apparent that the described embodiments are some, but not all embodiments of the present invention.
Drawings
FIG. 1 is a plan layout view of a closed bottom plate structure for the pipe well operation of the nondestructive deep foundation pit.
FIG. 2 is a sectional view of the construction of the non-damaged closed bottom plate for the pipe well of the deep foundation pit.
Wherein: 1- -structural backing plate; 2- -cushion coat; 3-a steel cover plate; 4, a water pumping pipe; 5-a steel tray; 6-well pipe; 7-water permeable material; 8-self-priming pump.
Detailed Description
As shown in fig. 1 and 2, the nondestructive closed bottom plate structure for pipe well operation of deep foundation pit comprises a precipitation well, wherein the precipitation well is composed of a structure bottom plate 1, a cushion layer 2, a steel cover plate 3, a water pumping pipe 4, a steel tray 5, a well pipe 6, a water permeable material 7, a self-priming pump 8 and the like. The steel cover plate 3 and the well pipe 6 are both arranged below the structural cushion layer 2, the well pipe 6 is a circular pipe, and the upper surface of the well pipe is flush with the bottom of the cushion layer 2. The steel cover plate 3 is arranged at the lower end of the cushion layer 2 and is of a circular, rectangular or square flat plate structure, the steel cover plate 3 is positioned right above the well pipe 6 and is aligned with the center of the well pipe 6, and the steel cover plate 3 is tightly attached to the upper surface of the well pipe 6 and completely covers the pipe orifice of the well pipe 6. The permeable material 7 is filled at the bottom end inside the well pipe 6, and the permeable material 7 is a melon seed sheet or sand with good gradation. The diameter of steel tray 5 is the same with 6 internal diameters of well casing, 7 tops of permeable material are located to steel tray 5, the same through-hole of steel apron 3 and the same depth of steel tray 5 external diameter is equipped with and draws water the corresponding position of pipe, 4 one ends of drinking-water pipe pass the through-hole of steel apron 3 and steel tray 5 and go deep into in well casing 6, the other end is laid along bed course 2 and is connected with self priming pump 8 to the foundation ditch edge, 4 at through-hole department and steel apron 3 and steel tray 5 sealing connection of drinking-water pipe, 4 drinking-water pipes are the PVC hose, the PPR pipe, iron pipe or steel pipe, it is equipped with micro-expansion concrete or cement mortar thick liquid to fill between steel apron 3 and the steel tray 5.
The utility model discloses at first through trompil on steel apron and steel tray, go deep into the certain degree of depth department of well casing with drinking-water pipe one end, the drinking-water pipe other end is laid to the foundation ditch edge along the bed course, pours into micro-expansion concrete or cement mortar between steel tray and the steel apron, then construction bed course, structure bottom plate (basement bottom plate), and the normal work of precipitation well simultaneously treats underground structure construction to the back of +/-0, precipitation well stop work, carries out the shutoff to the drinking-water pipe. The concrete secondary pouring is avoided by reserving holes on the structural bottom plate, materials are saved, the underground water leakage condition caused by the concrete secondary pouring is eliminated, the bottom plate construction is not affected by a dewatering well and can be poured at one time, the construction period is shortened, and the integrity of the bottom plate is better.
The present invention is not limited to the above-described embodiments, and various modifications made without inventive step from the above-described concept will fall within the scope of the present invention for those skilled in the art.
Claims (7)
1. A pipe well operation closed bottom plate structure of a nondestructive deep foundation pit comprises a precipitation well and is characterized in that the precipitation well comprises a structure bottom plate, a cushion layer, a steel cover plate, a water pumping pipe, a steel tray, a well pipe, a permeable material and a self-priming pump; the utility model discloses a well casing, including well casing, bed course, steel cover plate, well casing, steel tray, pumping pipe, foundation pit edge and self priming pump, structure bottom plate below is all located with the well casing to the bed course, and the well casing upper surface is kept level with the bed course bottom, the steel cover plate is located the bed course lower extreme to cover the well casing mouth of pipe completely, the material that permeates water fills in the inside bottom of well casing, steel tray overall dimension is the same with the overall dimension of well casing inner wall cross section, and the steel tray is located the well casing inside and is located the material top that permeates water, all be equipped with on steel cover plate and the steel tray with pumping pipe external diameter assorted through-hole, pumping pipe.
2. The damage-free closed bottom plate structure for pipe well operation of deep foundation pit as claimed in claim 1, wherein the well pipe is a circular pipe, the steel cover plate is a circular, rectangular or square flat plate structure, and the steel cover plate and the steel pallet are aligned in the center.
3. The damage-free deep foundation pit pipe well operation closed bottom plate structure as claimed in claim 1, wherein the pumping pipe is connected with the steel cover plate and the steel tray in a sealing manner.
4. The damage-free closed bottom plate structure for pipe well operation of deep foundation pit as claimed in claim 1, wherein the water permeable material is melon seed pieces or well-graded sand.
5. The damage-free closed bottom plate structure for the pipe well operation of the deep foundation pit as claimed in claim 1, wherein the water pumping pipe is a PVC hose, a PPR pipe, an iron pipe or a steel pipe.
6. The damage-free deep foundation pit pipe well operation closed bottom plate structure as claimed in claim 1, wherein slurry is filled between the steel cover plate and the steel tray.
7. The damage-free deep foundation pit pipe well operation closed bottom plate structure as claimed in claim 6, wherein the slurry is micro-expansion concrete or cement mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499685.7U CN209837071U (en) | 2019-04-12 | 2019-04-12 | Damage-free deep foundation pit pipe well operation closed bottom plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499685.7U CN209837071U (en) | 2019-04-12 | 2019-04-12 | Damage-free deep foundation pit pipe well operation closed bottom plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209837071U true CN209837071U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920499685.7U Active CN209837071U (en) | 2019-04-12 | 2019-04-12 | Damage-free deep foundation pit pipe well operation closed bottom plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209837071U (en) |
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2019
- 2019-04-12 CN CN201920499685.7U patent/CN209837071U/en active Active
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