CN113882415A

CN113882415A - Water drainage method

Info

Publication number: CN113882415A
Application number: CN202111320345.1A
Authority: CN
Inventors: 郭江辉; 金辽东; 张书峰
Original assignee: China MCC20 Group Corp Ltd
Current assignee: China MCC20 Group Corp Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-01-04
Anticipated expiration: 2041-11-09
Also published as: CN113882415B

Abstract

The invention relates to a drainage method, which comprises the following steps: digging a groove at the lower part near the position of the water overflow point of the basic raft, wherein the groove extends to the lower part of the position of the water leakage point of the elevator shaft; digging a drainage ditch at the lower part of the water leakage point, wherein the drainage ditch extends to the outside of the basic raft and is communicated with the dewatering well; laying a water conduit in the groove, laying a drain pipe in the drainage ditch, and connecting the drain pipe with a sewage pump; discharging the sewage gathered at the water leakage point into a precipitation well through a sewage pump and a drain pipe; water through the water spot department of bleeding with basic raft introduces to the water spot to concentrate the discharge with water through the drain pipe, from this, avoid influencing the construction of bed course, waterproof layer and basic raft, improved the efficiency of construction, shortened the engineering time.

Description

Water drainage method

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a drainage method.

Background

At present, precipitation measures are generally taken in advance before the construction of the deep foundation pit foundation, and the precipitation method of the deep foundation pit along with the progress of the times and the development of science and technology comprises the following steps: water interception method, well point dewatering method, curtain drainage method and other methods.

However, when the dewatering of the deep foundation pit adopts a dewatering method at a well point outside the foundation, the arrangement of a dewatering well in the deep foundation pit is strictly forbidden according to design requirements, and when the foundation bed course is constructed after earthwork construction is completed, water seeps upwards from the bottom of the deep foundation pit at multiple positions in the deep foundation pit, so that the foundation bed course is difficult to construct; meanwhile, the construction efficiency is low, and the construction period is prolonged.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a drainage method, which has the advantages that the technical problem of difficult foundation cushion layer construction can be solved; meanwhile, the construction efficiency is improved, and the construction period is shortened.

The above object of the present invention is achieved by the following technical solutions: a method of draining water comprising the steps of:

digging a groove at the lower part near the position of a water overflow point of the basic raft, wherein the groove extends to the lower part of the position of a water leakage point of the elevator shaft;

excavating a drainage ditch at the lower part of the water leakage point, wherein the drainage ditch extends to the outside of the basic raft and is communicated with a dewatering well;

laying a water diversion pipe in the groove, laying a drain pipe in the drainage ditch, and connecting the drain pipe with a sewage pump;

and discharging the sewage gathered at the water leakage point into the precipitation well through the sewage pump and the drain pipe.

Preferably, the invention provides a drainage method, the trench is dug on the elevator shaft slope.

Preferably, in the drainage method provided by the invention, the depth range of the groove is 150mm-250 mm; the width range of the groove is as follows: 80mm-120 mm.

Preferably, the drainage method according to the present invention further includes excavating a drainage ditch below the position of the water leakage point, the drainage ditch extending to the outside of the basic raft and communicating with the dewatering well, laying a water conduit in the ditch, laying a drainage pipe in the drainage ditch, and before the drainage pipe is connected to the sewage pump, further including: digging a holding tank at a water leakage point of the elevator shaft, the holding tank extending along a depth direction of the elevator shaft, the groove and the drainage ditch both communicating with the holding tank.

Preferably, in the drainage method provided by the present invention, the depth range of the accommodating groove is: 400mm-600 mm.

Preferably, according to the drainage method provided by the invention, a gravel layer is laid at the bottom of the accommodating tank, and the sewage pump is placed on the gravel layer.

Preferably, the present invention provides a drainage method, wherein a drainage ditch is dug at a lower portion of the water leakage point, the drainage ditch extending to an outside of the basic raft and communicating with a dewatering well, the drainage method comprising: the one end in escape canal with the holding tank intercommunication, the escape canal through post-cast strip extend to the outside of basic raft board, the other end in escape canal with precipitation well intercommunication.

Preferably, the drainage method according to the present invention, wherein a water conduit is laid in the trench, and a drain pipe is laid in the drainage ditch, the drain pipe being connected to a sewage pump, comprises: the leading water pipe is close to screen cloth is wrapped up to the one end of flooding point, fills in the rubble the slot deviates from the one end of holding tank, and fill in extremely the rubble is with bed course bottom elevation parallel and level.

Preferably, in the drainage method provided by the invention, the water inlet end of the sewage pump is sequentially wrapped with the filter cloth and the filter screen, and the filter screen is wrapped outside the filter cloth.

Preferably, the drainage method according to the present invention further includes the steps of, after the drainage pipe is installed in the gutter and the drainage pipe is installed in the drainage ditch, and after the drainage pipe is connected to the sewage pump, before the sewage collected at the water leakage point is drained into the precipitation well through the sewage pump and the drainage pipe, further including: and filling the filter stones in the accommodating grooves until the filter stones are flush with the bottom elevation of the cushion layer.

In conclusion, the beneficial technical effects of the invention are as follows: the application provides a drainage method, which comprises the following steps: digging a groove at the lower part near the position of the water overflow point of the basic raft, wherein the groove extends to the lower part of the position of the water leakage point of the elevator shaft; digging a drainage ditch at the lower part of the water leakage point, wherein the drainage ditch extends to the outside of the basic raft and is communicated with the dewatering well; laying a water conduit in the groove, laying a drain pipe in the drainage ditch, and connecting the drain pipe with a sewage pump; discharging the sewage gathered at the water leakage point into a precipitation well through a sewage pump and a drain pipe; water through the water spot department of bleeding with basic raft introduces to the water spot to concentrate the discharge with water through the drain pipe, from this, avoid influencing the construction of bed course, waterproof layer and basic raft, improved the efficiency of construction, shortened the engineering time.

Drawings

Fig. 1 is a flow chart of a drainage method according to an embodiment of the present invention.

Fig. 2 is a schematic view illustrating the arrangement of a drainpipe and a water conduit in the drainage method according to the embodiment of the present invention.

Fig. 3 is a plan view illustrating the arrangement of a drainpipe and a penstock in the drainage method according to an embodiment of the present invention.

Fig. 4 is a schematic diagram illustrating the arrangement of drain pipes in the drainage method according to the embodiment of the present invention.

In the figure, 1, a basic raft; 10. water flooding points; 11. a trench; 2. a water conduit; 20. screen cloth; 21. crushing stone; 3. a drain pipe; 4. a sewage pump; 40. a filter cloth; 41. filtering the stone; 5. a cushion layer; 6. an elevator shaft; 60. a water leakage point; 61. accommodating grooves; 7. post-pouring a belt; 8. a dewatering well.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, a drainage method disclosed by the present invention includes the following steps:

s101, excavating a groove 11 at the lower part near the position of a water overflow point 10 of the basic raft 1, wherein the groove 11 extends to the lower part of a water leakage point 60 of the elevator shaft 6; through digging slot 11 in the lower part of basic raft 1, from this, when carrying out precipitation to deep basal pit basis, avoid influencing follow-up construction, improved the efficiency of construction, shortened construction period.

Specifically, planning the path of the water conduit 2 and the drain pipe 3 according to a construction plan layout and the actual situation of the site; and selecting a drain pipe 3 with a proper diameter, a water conduit 2, a sewage pump 4, a power supply control box matched with the sewage pump 4 and the like according to the flow of the overflow water.

Wherein, according to the construction plan layout and the actual situation on site, the specific position of the trench 11 is determined, and one end of the trench 11 far away from the water leakage point 60 is arranged near the water overflow point 10.

Further, in the present embodiment, the depth range of the groove 11 is 150mm-250 mm; the width of the trench 11 ranges: 80mm-120 mm.

In this embodiment, the dug trench 11 has a depth of 200mm and a width of 100 mm.

With continued reference to fig. 4, to facilitate water diversion, a trench 11 is dug up the incline of the hoistway 6.

S102, excavating a drainage ditch at the lower part of the position of the water leakage point 60, wherein the drainage ditch extends to the outside of the basic raft plate 1 and is communicated with the dewatering well 8; the drainage ditch is excavated at the lower part of the position of the water leakage point 60, so that the influence on subsequent construction is avoided when the deep foundation pit foundation is subjected to precipitation, and therefore, the construction efficiency is improved.

Specifically, the drainage ditch is located the lower part of basic raft board 1. The depth range of the drainage ditch is as follows: 80mm-120mm, width range is: 80mm-120 mm. In this embodiment, the depth of the excavated drain is 100mm, and the width thereof is 100 mm. And S103, paving the water diversion pipe 2 in the groove 11, paving the drain pipe 3 in the drainage ditch, and connecting the drain pipe 3 with the sewage pump 4.

Exemplarily, the water conduit 2 and the drain pipe 3 can both adopt PVC pipes, and certainly, the water conduit 2 and the drain pipe 3 can also both adopt pipes made of other materials as long as the water conduit and the drainage function can be realized.

Further, in this embodiment, after digging a drainage ditch at the lower part of the position of the water leakage point 60, the drainage ditch extending to the outside of the basic raft 1 and communicating with the dewatering well 8, laying a water conduit 2 in the groove 11, laying a drainage pipe 3 in the drainage ditch, and before connecting the drainage pipe 3 with the sewage pump 4, the method further comprises: excavating an accommodating groove 61 at a water leakage point 60 of the elevator shaft 6, the accommodating groove 61 extending in a depth direction of the elevator shaft 6, the groove 11 and the drainage ditch both communicating with the accommodating groove 61; through setting up holding tank 61, from this, be convenient for with sewage gathering in holding tank 61, from this, be convenient for the discharge of sewage.

Wherein, the depth range of holding tank 61 is: 400mm-600 mm. In this embodiment, the depth of the accommodating groove 61 is 500 mm.

Specifically, the end of the groove 11 away from the water bursting point 10 is communicated with the accommodating groove 61.

Further, in this embodiment, a gravel layer is laid on the bottom of the accommodating groove 61, and the sewage pump 4 is placed on the gravel layer; by laying the gravel layer, it is thus convenient to place the sewage pump 4.

Wherein, in this embodiment, excavate the escape canal in the lower part of leaking water spot 60 position, the escape canal extends to the outside of basic raft 1, and with precipitation well 8 intercommunication, includes: one end and the holding tank 61 intercommunication of escape canal, the escape canal extends to the outside of basic raft 1 through post-cast strip 7, the other end and the precipitation well 8 intercommunication of escape canal.

Specifically, the escape canal is located the bottom of elevartor shaft 6 and post-cast strip 7, and the escape canal extends to post-cast strip 7 along the radial of elevartor shaft 6, and the escape canal extends to the outside of basic raft 1 along the length direction of post-cast strip 7, and the escape canal communicates with precipitation well 8.

Further, in this example, the water conduit 2 is laid in the groove 11, the drain pipe 3 is laid in the drainage ditch, and the drain pipe 3 is connected with the sewage pump 4, including: one end of the water conduit 2 close to the water overflowing point 10 is wrapped with the mesh cloth 20, and crushed stones 21 are filled into one end of the groove 11, which is far away from the containing groove 61, until the crushed stones 21 are flush with the bottom elevation of the cushion layer 5; through setting up screen cloth 20 and rubble 21, from this, filter the water that flows into in leading water pipe 2, avoid silt to flow into in leading water pipe 2.

Specifically, the one end that the aqueduct 2 did not wrap up the screen cloth 20 stretches into in the holding tank 61, and the one end that the aqueduct 2 did not wrap up the screen cloth 20 extends to near the water pump, from this, the water of being convenient for to introduce holding tank 61 passes through sewage pump 4 and discharges, has improved the efficiency of drainage.

Further, in this embodiment, the water inlet end of the sewage pump 4 is sequentially wrapped with the filter cloth 40 and the filter screen, and the filter screen is wrapped outside the filter cloth 40; through setting up filter cloth 40 and filter screen, from this, prevent that the granule in the sewage from getting into in sewage pump 4, avoid sewage pump 4 to damage, improved sewage pump 4's life.

Illustratively, the filter screen can adopt the wire net, and of course, the filter screen also can adopt the net of other materials, as long as can filter the granule in the sewage.

Wherein, in this embodiment, before laying leading water pipe 2 in ditch 11, laying drain pipe 3 in the escape canal, drain pipe 3 is connected with sewage pump 4, will concentrate on sewage in leak point 60 and arrange to precipitation well 8 through sewage pump 4 and drain pipe 3, still include: filling the filter stone 41 into the accommodating groove 61 until the filter stone 41 is flush with the bottom elevation of the cushion 5; by filling the filter stone 41, the water flowing out of the water guide pipe 2 is filtered.

Further, in this example, the power control box is disposed outside the basic raft 1, and a protection switch for controlling the sewage pump 4 is disposed on the power control box; after the sewage pump 4 is powered on, whether the pipeline formed by the drain pipe 3, the sewage pump 4 and the water diversion pipe 2 has water leakage is checked, and under the condition that no water leakage exists, concrete is filled into the groove 11 and the drainage ditch, so that the groove 11 and the drainage ditch are protected conveniently, and the groove 11 and the drainage ditch are prevented from being damaged in the construction process.

Wherein, lay bed course 5 in the lower part of basic raft 1, need lay the waterproof layer after the construction of bed course 5 is accomplished, in order not to influence the water-proof effects of waterproof layer, sewage pump 4's power cord and drain pipe 3 all bury in the lower part of bed course 5 secretly.

And S104, discharging the sewage gathered at the water leakage point 60 into the dewatering well 8 through the sewage pump 4 and the drain pipe 3.

Specifically, the water of the water spot 10 is drained to the holding tank 61 through the water conduit 2, the water of the water leakage spot 60 is held in the holding tank 61, the water of the water spot 10 and the water of the water leakage spot 60 are gathered in the holding tank 61, the water is sucked to the drain pipe 3 through the sewage pump 4, and the water is drained to the precipitation well 8 through the drain pipe 3, so that the precipitation of the deep foundation pit is realized.

The application provides a drainage method, which comprises the following steps: digging a groove 11 at the lower part near the position of a water overflow point 10 of the basic raft 1, wherein the groove 11 extends to the lower part of the position of a water leakage point 60 of the elevator shaft 6; excavating a drainage ditch at the lower part of the position of the water leakage point 60, wherein the drainage ditch extends to the outside of the basic raft plate 1 and is communicated with the dewatering well 8; a water diversion pipe 2 is laid in the groove 11, a drain pipe 3 is laid in the drainage ditch, and the drain pipe 3 is connected with a sewage pump 4; discharging the sewage collected at the water leakage point 60 into the dewatering well 8 through the sewage pump 4 and the drain pipe 3; water through the water spot 10 department of bleeding with basic raft 1 is introduced to water leakage point 60 to concentrate the discharge with water through drain pipe 3, from this, avoid influencing the construction of bed course 5, waterproof layer and basic raft 1, improved the efficiency of construction, shortened the engineering time.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.

Claims

1. A method of draining, characterized by: the method comprises the following steps:

2. The drainage method as claimed in claim 1, wherein: and excavating the groove on the slope of the elevator shaft.

3. The drainage method as claimed in claim 1, wherein: the depth range of the groove is 150mm-250 mm; the width range of the groove is as follows: 80mm-120 mm.

4. The drainage method as claimed in claim 1, wherein: the escape canal is excavated to the lower part of position of leaking the water spot, the escape canal extends to outside of basic raft, and after communicating with precipitation well the leading water pipe is laid to the ditch inslot lay the drain pipe in the escape canal, before the drain pipe is connected with the sewage pump, still include:

digging a holding tank at a water leakage point of the elevator shaft, the holding tank extending along a depth direction of the elevator shaft, the groove and the drainage ditch both communicating with the holding tank.

5. The drainage method as claimed in claim 4, wherein: the depth range of the accommodating groove is as follows: 400mm-600 mm.

6. The drainage method as claimed in claim 4, wherein: the gravel layer is laid to the bottom of holding tank, the sewage pump place in on the gravel layer.

7. The drainage method as claimed in claim 5, wherein: the escape canal is excavated to the lower part of water leakage point position, the escape canal extends to the outside of basic raft board, and with precipitation well intercommunication, include:

the one end in escape canal with the holding tank intercommunication, the escape canal through post-cast strip extend to the outside of basic raft board, the other end in escape canal with precipitation well intercommunication.

8. The drainage method as claimed in claim 1, wherein: the leading water pipe is laid to the ditch inslot lay the drain pipe in the escape canal, the drain pipe is connected with the sewage pump, includes:

the leading water pipe is close to screen cloth is wrapped up to the one end of flooding point, fills in the rubble the slot deviates from the one end of holding tank, and fill in extremely the rubble is with bed course bottom elevation parallel and level.

9. The drainage method as claimed in claim 1, wherein: the sewage pump is characterized in that the water inlet end of the sewage pump is sequentially wrapped with a filter cloth and a filter screen, and the filter screen is wrapped outside the filter cloth.

10. The drainage method as claimed in claim 4, wherein: laying a water conduit in the groove, laying a drain pipe in the drainage ditch, and after the drain pipe is connected with a sewage pump, before discharging sewage concentrated at the water leakage point into the precipitation well through the sewage pump and the drain pipe, the method further comprises the following steps:

and filling the filter stones in the accommodating grooves until the filter stones are flush with the bottom elevation of the cushion layer.