CN212772481U

CN212772481U - Anti earthquake liquefaction system of sand foundation building

Info

Publication number: CN212772481U
Application number: CN202020938257.2U
Authority: CN
Inventors: 李建宇; 汪之凡; 王征亮; 林佑高; 张兴明; 戴阳
Original assignee: CCCC FHDI Engineering Co Ltd
Current assignee: CCCC FHDI Engineering Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-03-23
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses an anti earthquake liquefaction system of sand foundation building, include: a building; and the water stopping wall is arranged at the bottom of the building. The utility model relates to a building engineering technical field. This sand foundation building earthquake resistant liquefaction system, through the stagnant water wall, automatic water pumping device, escape canal and drainage ceiling cooperation, constitute one set of complete earthquake resistant liquefaction system, simultaneously from wherein stagnant water wall and escape canal mainly play the stagnant water effect, automatic water pumping device and drainage ceiling then are inside drainage and outside drainage effect respectively, combine stagnant water and drainage to use, common measure, application scope is wide, the anti superficial problem of building can also be solved in step, make the holistic earthquake resistant liquefaction performance of building can effectively promote, in the aspect of the structure, be the lower and common equipment and material of cost, can solve traditional antidetonation liquefaction processing cost height and the problem that needs specific equipment.

Description

Anti earthquake liquefaction system of sand foundation building

Technical Field

The utility model relates to a building engineering technical field specifically is an anti earthquake liquefaction system of sand foundation building.

Background

The sandy soil earthquake liquefaction means that the soil body is compressed by saturated loose sand under the action of external force such as earthquake and the like, the internal gap is reduced, so that the pore water pressure is increased, the effective stress is reduced, and finally the shear strength of the soil is completely lost.

In areas with frequent earthquakes, because the harm caused by sandy soil earthquake liquefaction is more and more aroused attention of people, certain anti-liquefaction treatment needs to be carried out, the traditional anti-seismic liquefaction treatment mode mainly comprises encryption treatment, for example, a loose layer is subjected to compaction treatment by adopting methods such as dynamic compaction and vibroflotation, a pile foundation is adopted to enter a horizontal bearing layer below a liquefaction layer or a liquefiable soil layer is dug out, and the like, but the treatment means have the defects of high manufacturing cost, high construction difficulty, complex construction conditions and the like, and meanwhile, the treatment means have failure risk when facing strong earthquakes with large earthquake intensity.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an anti earthquake liquefaction system of sand foundation building has solved traditional antidetonation liquefaction handling mode cost height, the problem that the construction degree of difficulty is big, construction conditions is complicated.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a sand based building earthquake liquefaction resistant system comprising:

a building;

the water stopping wall is arranged at the bottom of the building, an automatic water pumping device is arranged inside a basement of the building and comprises a water pump and a precipitation well, the output end of the water pump is connected with a water level monitoring device, one side of the water level monitoring device is communicated with a water guide pipe, and the other end of the water guide pipe is communicated with the interior of the precipitation well;

the drainage ditch is arranged on the outer side of the water stop wall, and a drainage ceiling is arranged at the top of the building.

Furthermore, the top of the water-stopping wall is fixedly connected with the foundation of the building, and the bottom of the water-stopping wall extends to the impermeable layer 1-2 meters below the sandy soil or silt layer of the liquefiable foundation.

Further, the water pump is arranged inside the building basement, and the dewatering well is arranged at the bottom of the inner wall of the building basement.

Furthermore, the cross section of the drainage ditch is rectangular and 0.3 m in depth, and a drainage pipe is communicated with the drainage ceiling.

Further, fixedly connected with mount on the precipitation well inner wall, the equal fixedly connected with installation axle of the left and right sides at mount top.

Further, the top joint of mount has the filter, the mounting hole has all been seted up to the left and right sides at filter top.

Compared with the prior art, the beneficial effects of the utility model are that:

this sand foundation building earthquake resistant liquefaction system, through the stagnant water wall, automatic water pumping device, escape canal and drainage ceiling cooperation, constitute one set of complete earthquake resistant liquefaction system, simultaneously from wherein stagnant water wall and escape canal mainly play the stagnant water effect, automatic water pumping device and drainage ceiling then are inside drainage and outside drainage effect respectively, use is put together stagnant water and drainage, common measure, application scope is wide, the anti superficial problem of building can also be solved in step, make the holistic earthquake resistant liquefaction performance of building effectively promote, in the aspect of the structure, be the lower and common equipment and material of cost, greatly reduced the cost, can solve traditional antidetonation liquefaction and handle the problem that the cost is high and need specific equipment.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a schematic structural view of the interior of the basement of the building of the present invention;

FIG. 3 is an enlarged view of portion A shown in FIG. 1;

fig. 4 is a schematic structural diagram of a second embodiment of the present invention;

fig. 5 is an enlarged schematic view of the portion B shown in fig. 4.

In the figure: 1-building, 2-water stop wall, 3-automatic water pumping device, 31-water pump, 32-precipitation well, 33-water level monitoring device, 34-water guiding pipe, 4-drainage ditch, 5-drainage ceiling, 6-drainage pipe, 7-fixing frame, 8-mounting shaft, 9-filtering plate, 10-mounting hole, 11-sand layer and 12-clay layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

First embodiment

Referring to fig. 1-3, the present invention provides a technical solution: a sand based building earthquake liquefaction resistant system comprising:

a building 1;

the water-stopping wall 2 is arranged at the bottom of the building 1, the automatic water pumping device 3 is arranged in the basement of the building 1, the automatic water pumping device 3 comprises a water pump 31 and a precipitation well 32, the output end of the water pump 31 is connected with a water level monitoring device 33, one side of the water level monitoring device 33 is communicated with a water guide pipe 34, and the other end of the water guide pipe 34 is communicated with the interior of the precipitation well 32;

and the drainage ditch 4 is arranged on the outer side of the water stop wall 2, and a drainage ceiling 5 is arranged at the top of the building 1.

The building 1 can be a common building in the prior art, and the water stop wall 2 is connected with the foundation part of the building 1 according to the specific condition of a building area and is formed by steel bars and concrete pouring, so that the bottom of the building 1 can form a closed structure, and the pile end of the bottom of the building enters 1-2 meters of a waterproof layer below sandy soil or a silt layer reaching the liquefiable foundation so as to prevent external underground water from permeating into the foundation of the building 1 and achieve a good water stop effect;

the automatic water pumping device 3 is used for pumping accumulated water in the basement of the building 1 in time to avoid excessive accumulated water in the basement, the dewatering well 32 can be arranged on the inner side of the water stop wall 2 or in the foundation of the building 1, the number of the dewatering wells 32 needs to be adjusted according to the specific setting environment to ensure that the optimal drainage effect is achieved, the bottom of the dewatering wells 32 is communicated with an underground drainage system, a fixed water level monitoring value is arranged on the water level monitoring device 33, when the water level reaches a certain depth, the water pump 31 is controlled to start to automatically pump water and drain water, and finally the water is drained through a drainage system of the underground building, so as to solve the problem of small amount of water seepage at the inner side of the water stop wall, the precipitation depth is determined according to the liquefaction judgment depth of the relevant standard, according to the principle of different depths of different foundations, such as a raft foundation, the dewatering depth is 15m, the pile foundation dewatering depth is 20m, and the natural foundation dewatering depth is 15 m;

the drainage ditch 4 is arranged on the outer side of the water stop wall 2, so that surface water is further prevented from permeating into the foundation of the building 1, an effective waterproof effect is achieved, and a certain waterproof effect is achieved on the foundation of the building 1;

through stagnant water wall 2, automatic water pumping device 3, escape canal 4 and drainage ceiling 5 cooperation, constitute one set of complete anti earthquake liquefaction system, simultaneously from wherein stagnant water wall 2 and escape canal 4 mainly play the stagnant water effect, automatic water pumping device 3 and drainage ceiling 5 are inside drainage and outside drainage effect respectively, use with stagnant water and drainage combination, common measure, application scope is wide, the anti superficial problem of building can also be solved in step, make 1 holistic anti earthquake liquefaction performance of building effectively promote, in the aspect of the structure, be the lower and common equipment and material of cost, greatly reduced the cost, can solve traditional antidetonation liquefaction processing cost height and need the problem of specific equipment.

The top of the water-stopping wall 2 is fixedly connected with the foundation of the building 1, and the bottom of the water-stopping wall 2 extends to a water-impermeable layer 1-2 meters below sandy soil or silt layer of the liquefiable foundation.

The underground extension depth of the water stop wall 2 needs to ensure that the bottom of the water stop wall can extend to 1-2 meters of an impervious layer below sandy soil or silt layer of the liquefied foundation.

The water pump 31 is arranged in the basement of the building 1, and the dewatering well 32 is arranged at the bottom of the underground indoor wall of the building 1.

The water pump 31 is connected with an external power supply, and accumulated water in the basement of the building 1 can be discharged by starting the water pump 31.

The cross section of the drainage ditch 4 is rectangular and 0.3 m in depth, and a drainage pipe 6 is communicated with the drainage ceiling 5.

The degree of depth of escape canal 4 can be according to concrete setting up the environmental adjustment, guarantee that the surface gathered water can not permeate in the ground can.

The working principle is as follows:

the water-stop wall 2, the automatic water pumping device 3, the drainage ditch 4 and the drainage ceiling 5 are matched to form a complete anti-earthquake liquefaction system, the water-stop wall 2 and the drainage ditch 4 mainly play a role in water stopping, the automatic water pumping device 3 and the drainage ceiling 5 respectively play an role in internal drainage and external drainage, when the basement of the building 1 exceeds a set water level due to accumulated water, the water level monitoring device 33 outputs a signal to control the water pump 31 to start up to automatically pump and drain water, the water sucked by the water pump 31 enters the dewatering well 32 through the water guide pipe 34 and is finally drained through the underground building drainage system, and the problem of a small amount of water seepage at the inner side of the water-stop wall is solved;

through combining stagnant water and drainage and using, for common measure, application scope is wide, can also solve the anti problem of floating of building in step for the holistic anti earthquake liquefaction performance of building 1 can effectively promote, in the aspect of the structure, is the lower and common equipment of cost and material, greatly reduced the cost, can solve traditional antidetonation liquefaction and handle the problem that the cost is high and need specific equipment.

Second embodiment

Referring to fig. 4-5, based on the sand foundation building earthquake liquefaction resisting system provided by the first embodiment of the present invention, the second embodiment of the present invention provides another sand foundation building earthquake liquefaction resisting system, wherein the second embodiment does not hinder the independent implementation of the technical solution of the first embodiment.

Specifically, the utility model provides an anti earthquake liquefaction system difference of another kind of sand foundation building lies in:

fixedly connected with mount 7 on the precipitation well 32 inner wall, the equal fixedly connected with installation axle 8 in the left and right sides at mount 7 top.

The whole ring shape that is of mount 7 mainly forms for cement pouring, and installation axle 8 then is the metal material, and the top is the arc shape, easy to assemble filter 9.

The top joint of mount 7 has filter 9, mounting hole 10 has all been seted up to the left and right sides at filter 9 top.

Be provided with the filter screen on the filter 9, the filter 9 is installed on mount 7, mounting hole 10 and installation axle 8 looks adaptation, through both joints, make the filter 9 can stable installation on mount 7, waste water is discharged by aqueduct 34, directly drop on filter 9, filter through on the filter plate 9 and can filter great particulate matter in the waste water, can prevent that too much debris from dropping to underground drainage system, lead to the system to appear blockking up, play the guard action to underground drainage system.

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.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand foundation building earthquake resistant liquefaction system, comprising:

a building;

2. The sand-based building earthquake liquefaction resisting system of claim 1, wherein: the top of the water-stopping wall is fixedly connected with the foundation of the building, and the bottom of the water-stopping wall extends to the impervious bed 1-2 meters below the sandy soil or silt layer of the liquefiable foundation.

3. The sand-based building earthquake liquefaction resisting system of claim 1, wherein: the water pump is arranged in the building basement, and the dewatering well is arranged at the bottom of the inner wall of the building basement.

4. The sand-based building earthquake liquefaction resisting system of claim 1, wherein: the cross section of the drainage ditch is rectangular and 0.3 m in depth, and a drainage pipe is communicated with the drainage ceiling.

5. The sand-based building earthquake liquefaction resisting system of claim 1, wherein: the dewatering well is characterized in that a fixing frame is fixedly connected to the inner wall of the dewatering well, and mounting shafts are fixedly connected to the left side and the right side of the top of the fixing frame.

6. The sand-based building earthquake liquefaction resisting system of claim 5, wherein: the top joint of mount has the filter, the mounting hole has all been seted up to the left and right sides at filter top.