CN104060620B - Deep basal pit Karst Fissures water controling method - Google Patents
Deep basal pit Karst Fissures water controling method Download PDFInfo
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- CN104060620B CN104060620B CN201310089926.8A CN201310089926A CN104060620B CN 104060620 B CN104060620 B CN 104060620B CN 201310089926 A CN201310089926 A CN 201310089926A CN 104060620 B CN104060620 B CN 104060620B
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Abstract
The present invention relates to deep basal pit Yield rainfall relation method.A kind of deep basal pit Karst Fissures water controling method, including: excavation of foundation pit step, sump is set at foundation ditch lower curtate simultaneously, foundation ditch rock stratum side slope arranges the guiding gutter step that transverse and longitudinal connects；Assembling reinforcement also carries out concrete placings step, arranges Grouting Pipe bottom foundation ditch simultaneously；Pumping drainage and the step of shut-in well, until concrete structure close after by sump in water pump take out, in sump, level of ground water rises to balance height after-pouring Underwater Concrete；Slip casting step bottom foundation ditch, injects cement mortar from the Grouting Pipe that is arranged on bottom foundation ditch, opens and be positioned at slip casting drain pipe valve in top at waterproof membrane covering and drain the water away during slip casting, and cement mortar closes Grouting Pipe, the valve of drain pipe, Grouting Pipe after filling；Cleanup step, cement slurry sets and intensity are levelling along the cutting of concrete structure by sump, Grouting Pipe, slip casting drain pipe after reaching.Groundwater Control of the present invention is effective, it is ensured that being normally carried out of foundation pit structure construction.
Description
Technical field
The present invention designs deep basal pit, particularly relates to the Yield rainfall relation method of deep basal pit.
Background technology
There are many ground alternating layers and full lithostratigraphy in south China area, underground deep foundation pit construction is carried out first it is considered that excavation of foundation pit, go along with sb. to guard him and Groundwater Control problem under this geological conditions, and often there is substantial amounts of Karst-fissure water because of the crack in rock stratum or karst hole in this geological conditions, crevice water is through because of Karst Fissures transverse and longitudinal, most supply sources abundant with water resource communicate, substantial amounts of Karst-fissure water can be poured in during excavation of foundation pit, bring extreme difficulties to excavation of foundation pit and structure construction.
Summary of the invention
It is contemplated that overcome the defect of prior art, it is provided that a kind of deep basal pit Karst Fissures water controling method.Groundwater Control of the present invention is effective, it is ensured that being normally carried out of foundation pit structure construction.
In order to solve above-mentioned technical problem, one deep basal pit Karst Fissures water controling method of the present invention, it includes:
Excavation of foundation pit step, arranges sump at foundation ditch lower curtate simultaneously,
Arranging the guiding gutter step that transverse and longitudinal connects in the side slope of foundation ditch rock stratum, guiding gutter is that semicircle shape is buckled in the side slope of foundation ditch rock stratum, and guiding gutter is drilled with water guide filter opening, and the plane of guiding gutter and guiding gutter covering connects with sump, and guiding gutter top covers waterproof membrane；
Assembling reinforcement also carries out concrete placings step, arranges Grouting Pipe bottom foundation ditch simultaneously；
Pumping drainage with take out the step of shut-in well after sump, the Karst-fissure water of waterproof membrane bottom is discharged in flowing into sump by guiding gutter, after concrete structure is closed by sump in water pump take out, in sump, level of ground water rises to balance height after-pouring Underwater Concrete；
Slip casting step bottom foundation ditch, after Underwater Concrete reaches intensity, inject cement mortar from the Grouting Pipe that is arranged on bottom foundation ditch, open during slip casting and be positioned at slip casting drain pipe valve in top at waterproof membrane covering and drain the water away, cement mortar closes Grouting Pipe, the valve of drain pipe, Grouting Pipe after filling；
Cleanup step, cement slurry sets and intensity are levelling along the cutting of concrete structure by sump, Grouting Pipe, slip casting drain pipe after reaching.
Described deep basal pit Karst Fissures water controling method, the inside and outside of described sump is all welded with seal ring.
Described deep basal pit Karst Fissures water controling method, described sump height is higher than foundation ditch bottom level.
Described deep basal pit Karst Fissures water controling method, described sump height and foundation ditch bottom level maintain an equal level, shut-in well is to be positioned at fillter section position welding steel and flange bottom sump, the permeable place in itself and shaft bottom is made to separate, structure takes out water pump after closing, mounting flange blind plate, the most directly pours concrete..
Described deep basal pit Karst Fissures water controling method, described Grouting Pipe, slip casting drain pipe are welded with seal ring.
Groundwater Control of the present invention is effective, it is ensured that being normally carried out of foundation pit structure construction.Can be used for the similar base pit engineering that subsoil water is bigger.Principle is simple, easily operated.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is first embodiment schematic diagram of the present invention；
Fig. 2 is second embodiment schematic diagram of the present invention；
Fig. 3 is A portion enlarged drawing in the middle of Fig. 1 or Fig. 2..
Detailed description of the invention
First embodiment:
Refer to Fig. 1 and combine Fig. 3, digging process arranges bottom foundation ditch 6 sump 1, the foundation ditch rock stratum side slope that a large amount of Karst-fissure water penetrate into arranges the guiding gutter 2 that transverse and longitudinal connects, guiding gutter is that semicircle shape is buckled in the side slope of rock stratum, water guide filter opening it is drilled with on guiding gutter, the plane that guiding gutter and guiding gutter cover connects with sump, guiding gutter top covers waterproof membrane 3, so carry out reinforcing bar binding and concrete placings overall process can be carried out on the waterproof membrane top processed through water proof, construction period concrete structure is normally carried out, the Karst-fissure water of waterproof membrane bottom is discharged in flowing into sump by guiding gutter, until concrete structure close after by sump in water pump take out, in sump, level of ground water rises to balance height after-pouring Underwater Concrete, it is welded with seal ring inside and outside sump and can play waterproof action；After Underwater Concrete reaches intensity, cement mortar is injected from the Grouting Pipe 4 being arranged on bottom foundation ditch, open during slip casting and be positioned at top slip casting drain pipe 5 valve at waterproof membrane covering and drain the water away, cement mortar closes Grouting Pipe, the valve of drain pipe after filling, Grouting Pipe, drain pipe are welded with seal ring 7 and may also function as sump, Grouting Pipe, slip casting drain pipe being prolonged concrete structure and cutting levelling after waterproof action, cement slurry sets and intensity reach.
Second embodiment
See Fig. 2, the present embodiment is for the general or less situation of Karst-fissure water, the height that is with first embodiment difference to catchment is the most identical with well concrete structural base, shut-in well is to be positioned at fillter section position welding steel and blank flange 8 bottom sump, the permeable place in itself and shaft bottom is made to separate, structure takes out water pump, mounting flange blind plate 8 after closing, and the most directly pours concrete.
Claims (5)
1. a deep basal pit Karst Fissures water controling method, it is characterised in that it includes:
Excavation of foundation pit step, arranges sump bottom foundation ditch in digging process,
Arranging the guiding gutter step that transverse and longitudinal connects in the side slope of foundation ditch rock stratum, guiding gutter is that semicircle shape is buckled in the side slope of foundation ditch rock stratum, and guiding gutter is drilled with water guide filter opening, and the plane of guiding gutter and guiding gutter covering connects with sump, and guiding gutter top covers waterproof membrane；
Assembling reinforcement also carries out concrete placings step, arranges Grouting Pipe bottom foundation ditch simultaneously；
Pump drainage with take out the step of shut-in well after sump, the Karst-fissure water of waterproof membrane bottom is discharged in flowing into sump by guiding gutter, after concrete structure is closed by sump in water pump take out, in sump, level of ground water rises to balance height after-pouring Underwater Concrete；
Slip casting step bottom foundation ditch, after Underwater Concrete reaches intensity, injects cement mortar from the Grouting Pipe that is arranged on bottom foundation ditch, opens and be positioned at slip casting drain pipe valve in top at waterproof membrane covering and drain the water away during slip casting, and cement mortar closes Grouting Pipe, the valve of drain pipe after filling；
Cleanup step, cement slurry sets and intensity are levelling along the cutting of concrete structure by sump, Grouting Pipe, slip casting drain pipe after reaching.
Deep basal pit Karst Fissures water controling method the most according to claim 1, it is characterised in that the inside and outside of described sump is all welded with seal ring.
Deep basal pit Karst Fissures water controling method the most according to claim 1 and 2, it is characterised in that described sump height is higher than foundation ditch bottom level.
Deep basal pit Karst Fissures water controling method the most according to claim 1 and 2, it is characterized in that, described sump height and foundation ditch bottom level maintain an equal level, shut-in well is to be positioned at fillter section position welding steel and flange bottom sump, the permeable place in itself and shaft bottom is made to separate, structure takes out water pump, mounting flange blind plate after closing, and the most directly pours concrete.
Deep basal pit Karst Fissures water controling method the most according to claim 1, it is characterised in that described Grouting Pipe, slip casting drain pipe are welded with seal ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310089926.8A CN104060620B (en) | 2013-03-20 | 2013-03-20 | Deep basal pit Karst Fissures water controling method |
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| CN201310089926.8A CN104060620B (en) | 2013-03-20 | 2013-03-20 | Deep basal pit Karst Fissures water controling method |
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| CN104060620A CN104060620A (en) | 2014-09-24 |
| CN104060620B true CN104060620B (en) | 2016-08-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836232A (en) * | 2017-03-30 | 2017-06-13 | 中国华西企业股份有限公司 | Deep basal pit pressure-bearing water seal drainage construction technique |
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| CN104294836B (en) * | 2014-10-30 | 2016-06-22 | 中冶建工集团有限公司 | There is the precipitation processing method in crack in foundation ditch water barrier |
| CN105625448A (en) * | 2014-10-31 | 2016-06-01 | 龚展宇 | Underground water drainage method and device for underground building |
| CN104846836B (en) * | 2015-05-21 | 2016-08-31 | 中铁四局集团有限公司 | Water supply and drainage device for deep foundation pit and construction method based on water supply and drainage device |
| CN105201002B (en) * | 2015-10-23 | 2017-08-25 | 金磐集团有限公司 | A kind of underground structure oozes drainage system and its construction method |
| CN106012951B (en) * | 2016-06-27 | 2017-12-12 | 李德群 | Avoid the reservoir structure that solution cavity is built the method for reservoir and its built in In Limestone Area |
| CN107217674A (en) * | 2017-05-10 | 2017-09-29 | 山西四建集团有限公司 | Cubic meter of stone foundation ditch enters rock non-explosive excavation construction method |
| CN111501767B (en) * | 2020-03-24 | 2021-10-26 | 中铁隧道局集团建设有限公司 | Foundation pit base surface hydration-free construction structure under sandy cobble and mudstone geological conditions |
| CN111472347B (en) * | 2020-04-17 | 2022-01-11 | 中铁六局集团有限公司 | Leaking stoppage device for underground continuous wall water leakage position |
| CN112281858A (en) * | 2020-10-20 | 2021-01-29 | 中建八局发展建设有限公司 | Mud rock natural foundation fissure water drainage construction method |
| CN113250219B (en) * | 2021-05-18 | 2022-09-23 | 深圳市大升勘测技术有限公司 | Foundation pit karst effluent treatment plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836232A (en) * | 2017-03-30 | 2017-06-13 | 中国华西企业股份有限公司 | Deep basal pit pressure-bearing water seal drainage construction technique |
| CN106836232B (en) * | 2017-03-30 | 2019-01-29 | 中国华西企业股份有限公司 | Deep basal pit pressure-bearing water seal drainage construction technique |
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| CN104060620A (en) | 2014-09-24 |
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