CN213086764U

CN213086764U - Drainage device for constructional engineering

Info

Publication number: CN213086764U
Application number: CN202021672731.8U
Authority: CN
Inventors: 郭海梅; 李小青
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-04-30
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a drainage device for building engineering, which belongs to the field of building drainage and comprises a soft soil pit, wherein a sleeve is arranged in the soft soil pit, the bottom of the sleeve is provided with a plurality of holes, the sleeve is provided with a filtering wire-wound screen pipe, a ground anchor and an isolating device from the bottom upwards in sequence, the sleeve is fixed in the soft soil pit by the ground anchor, the isolating device isolates an upper annular space and a lower annular space between the sleeve and the soft soil pit, and an annular space above the isolating device is provided with cement grout; the sleeve center is equipped with the drain pipe that the bottom has the hole, the below is equipped with the separation stopper between drain pipe and the sleeve, the degree of depth that the separation was filled in is greater than isolating device's degree of depth, and ground water passes through the annular space of sleeve and weak soil pot hole earlier and gets into the sleeve through the hole on the sleeve again, and the hole through drain pipe bottom portion gets into the drain pipe at last.

Description

Drainage device for constructional engineering

Technical Field

The utility model relates to a building drainage field, concretely relates to building engineering drainage device.

Background

The soft soil is usually drained and improved to achieve the purpose of being used as a building land, the whole foundation surface to be treated and the peripheral shallow layer are sealed by a special sealing film through construction by a vacuum preloading method at present, the workload is very large, and the construction is very difficult when facing a strong permeable sand interlayer.

And often soft soil drainage is a long-term project, underground drainage is not well treated, and great hidden danger is generated on the service life of the foundation in the future and the safety of the foundation.

In view of the problems existing in the prior art, the utility model discloses combine many years' design and experience of use in relevant field, assisted by too strong professional knowledge, designed and manufactured a building engineering drainage device, overcome above-mentioned defect.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a pair of building engineering drainage device can guarantee the drainage at the bottom of the soft soil ground, improves the security of ground.

In order to realize the purpose, the utility model discloses a technical scheme as follows: a drainage device for constructional engineering comprises a soft soil pit, wherein a sleeve is arranged in the soft soil pit, a plurality of holes are formed in the bottom of the sleeve, a filter wire-wrapped screen pipe, a ground anchor and an isolation device are sequentially arranged on the sleeve from the bottom to the top, the sleeve is fixed in the soft soil pit by the ground anchor, the upper annular space and the lower annular space between the sleeve and the soft soil pit are isolated by the isolation device, and cement grout is filled in the annular space above the isolation device;

the sleeve center is equipped with the drain pipe that the bottom has the hole, the below is equipped with the separation stopper between drain pipe and the sleeve, the degree of depth that the separation was filled in is greater than isolating device's degree of depth, and ground water passes through the annular space of sleeve and weak soil pot hole earlier and gets into the sleeve through the hole on the sleeve again, and the hole through drain pipe bottom portion gets into the drain pipe at last.

Preferably, the outer wall of the sleeve is provided with a centralizer.

Preferably, a sealing cover is arranged above the top of the soft soil pit.

Preferably, the drain pipe top is connected with filter equipment, monitoring devices and suction pump, monitoring devices includes manometer, flowmeter.

Preferably, fracturing fluid is injected between the sleeve and the annulus of the soft soil pit.

Preferably, an auxiliary water pumping pipe is arranged between the water drainage pipe and the annular space between the sleeves.

The utility model discloses an useful part lies in:

(1) the utility model discloses a fracturing fluid forces the end of a land to form a large amount of end of a land cracks, and the free water in the end of a land hole passes through the crack and gets into the utility model discloses in, can be by in the suction pump discharge weak soil hole, reduced the end of a land and had the damage of big water gaging to the ground.

(2) The utility model discloses utilize sleeve, earth anchor, cement three combination to have good anchor supporting effect to the weak soil pot hole, form a whole and stable false rock area, finally reach stable in structure's purpose.

(3) The utility model discloses a detection of flow and pressure masters the physical state of drainage in real time, plays certain early warning effect to the proruption situation that probably appears.

(4) The utility model discloses filter wire-wound screen pipe wire-wound hole from outside-in slowly diminishing, have the effect of blockking to the big particle size detritus in the weak soil hole.

Drawings

Fig. 1 is a schematic structural view of a drainage device for construction engineering.

In the figure: the method comprises the following steps of 1, a filtering wire-wound sieve tube, 2, cracks, 3, a soft soil pit hole, 4, a blocking plug, 5, a drain pipe, 6, a ground anchor, 7, an isolation device, 8, cement grout filling, 9, a centralizer, 10, a sleeve, 11, a sealing cover, 12, an auxiliary water pumping pipe, 13, a filtering device and 14, and a monitoring device.

Detailed Description

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

As shown in figure 1, a drainage device for construction engineering, comprising a soft soil pit 3, for reducing the water amount around the soft soil pit 3 and improving the strength of the foundation, the utility model discloses need to drain around the soft soil pit 3, can be specifically distributed according to the building site, the utility model discloses a sleeve 10 is arranged in the soft soil pit 3, a plurality of holes are arranged at the bottom of the sleeve 10, the sleeve 10 is sequentially provided with a filtering wire-winding screen pipe 1, a ground anchor 6 and an isolation device 7 from the bottom upwards, the wire-winding hole of the filtering wire-winding screen pipe 1 is gradually reduced from the outside to the inside, the large-diameter rock debris in the soft soil pit 3 can be blocked, the sleeve 10 is fixed in the soft soil pit 3 by the ground anchor 6, the upper and lower annular spaces between the sleeve 10 and the pit 3 are isolated by the isolation device 7, the annular space above the isolation device 7 is provided with cement grout 8, specifically, the prepared cement grout 8 is injected into the upper space of the sleeve 10 and the pit, calculate the good prescription volume, quiet waiting 8 hours that set of cement grout, the utility model discloses utilize sleeve 10, earth anchor 6, cement three combination to have good anchor supporting effect to weak soil pot hole 3, form a whole and stable false rock area, finally reach stable in structure's purpose.

The utility model discloses sleeve 10 center is equipped with the drain pipe 5 that the bottom has the hole, and 3 top in weak soil pot hole are equipped with sealed lid 11, and drain pipe 5 wears out from sealed lid 11, and anticorrosive pipeline is chooseed for use to drain pipe 5, and the below is equipped with separation stopper 4 between drain pipe 5 and the sleeve 10, the utility model discloses separation stopper 4 is the rubber stopper of the certain thickness of middle porose, and the hole diameter that separation stopper 4's hole ratio was filtered on the wire-wound screen pipe 1 is slightly littleer, and the degree of depth that separation stopper 4 was greater than isolating device 7, and the ground water is earlier through the annular space of sleeve 10 and weak soil pot hole 3 and is got into sleeve 10 through the hole on the sleeve 10 again, gets into drain pipe.

The utility model discloses separation stopper 4 can shunt under the too much condition of ground bottom water, and is concrete, is equipped with supplementary drinking-water pipe 12 between the annular space between drain pipe 5 and the sleeve 10.

For improving the verticality of the sleeve in the soft soil pit 3, the utility model discloses be equipped with centralizer 9 at sleeve 10 outer wall.

The utility model discloses drain pipe 5 top is connected with filter equipment 13, monitoring devices 14 and suction pump, and monitoring devices 14 includes manometer, flowmeter, masters the physical state of drainage in real time, plays certain early warning effect to the proruption situation that probably appears.

The utility model discloses preferably pour into fracturing fluid into between the annular space of sleeve 10 and weak soil pothole 3, fracturing fluid is by the clear water, the foaming agent, and quartz sand is constituteed. The ground end can be because of fracturing fluid produces crack 2, and quartz sand gets into crack 2, makes crack 2 be difficult to the closure, and the free water in the hole of ground end passes through crack 2 and gets into the utility model discloses in, can be by in suction pump discharge weak soil hole 3, reduced the potential safety hazard that there is big water gaging to the ground existence at the ground end.

It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes, modifications and/or alterations to the present invention may be made by those skilled in the art after reading the technical disclosure of the present invention, and all such equivalents may fall within the scope of the present invention as defined by the appended claims.

Claims

1. A kind of constructional engineering drainage means, characterized by: the device comprises a soft soil pit, wherein a sleeve is arranged in the soft soil pit, a plurality of holes are formed in the bottom of the sleeve, the sleeve is sequentially provided with a filtering wire-wound sieve tube, a ground anchor and an isolating device from the bottom to the top, the sleeve is fixed in the soft soil pit by the ground anchor, the upper annular space and the lower annular space between the sleeve and the soft soil pit are isolated by the isolating device, and cement grout is filled in the annular space above the isolating device;

2. A construction work drain device according to claim 1, wherein: and a centralizer is arranged on the outer wall of the sleeve.

3. A construction work drain device according to claim 1, wherein: and a sealing cover is arranged above the top of the soft soil pit.

4. A construction work drain device according to claim 1, wherein: the water drainage pipe is characterized in that a filtering device, a monitoring device and a water suction pump are connected above the water drainage pipe, and the monitoring device comprises a pressure gauge and a flowmeter.

5. A construction work drain device according to claim 1, wherein: and fracturing fluid is required to be injected between the sleeve and the annulus of the soft soil pit.

6. A construction work drain device according to claim 1, wherein: an auxiliary water pumping pipe is arranged between the annular space between the water drainage pipe and the sleeve.