CN106592756A - Karst region step-type basement water drainage structure and construction method thereof - Google Patents

Karst region step-type basement water drainage structure and construction method thereof Download PDF

Info

Publication number
CN106592756A
CN106592756A CN201710059006.XA CN201710059006A CN106592756A CN 106592756 A CN106592756 A CN 106592756A CN 201710059006 A CN201710059006 A CN 201710059006A CN 106592756 A CN106592756 A CN 106592756A
Authority
CN
China
Prior art keywords
water
basement
drain
sump
construction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710059006.XA
Other languages
Chinese (zh)
Inventor
王斌
张明
余尚
苏伟
叶国昌
岳巍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Construction Fourth Engineering Division Corp Ltd
Original Assignee
China Construction Fourth Engineering Division Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Construction Fourth Engineering Division Corp Ltd filed Critical China Construction Fourth Engineering Division Corp Ltd
Priority to CN201710059006.XA priority Critical patent/CN106592756A/en
Publication of CN106592756A publication Critical patent/CN106592756A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • E02D19/08Restraining of underground water by employing open ditches arranged below the level of the water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • E02D19/10Restraining of underground water by lowering level of ground water
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/0007Base structures; Cellars

Abstract

The invention provides a Karst region step-type basement water drainage structure and a construction method thereof. A base distributed in a step form is arranged at the bottom of a basement, a bottom plate is laid in the position of the base, at least one water drainage blind ditch with a water drainage slope is arranged along the outer side of an external wall of the basement, water-collecting wells are arranged in a bottom layer step of the base, the lower ends of water pipes extend into the water-collecting wells, the other ends of the water pipes extend into a water storage basin formed in a basement positive and negative zero top plate surface, and self-priming pumps are arranged in the water-collecting wells correspondingly. The problem that economical efficiency or an effective water drainage effect cannot be achieved through a traditional base water drainage method is solved. The Karst region step-type basement water drainage structure and the construction method thereof belong to the technical field of building construction.

Description

A kind of casta region stepped ramp type basement drain structure and its construction method
Technical field
The present invention relates to the ultra-deep foundation pit stepped ramp type high-low bay basement bottom board row under the conditions of a kind of casta region Water-bound, belongs to technical field of building construction.
Background technology
As country promotes the development of Urbanization Construction, city size rapidly to extend, town site but be becoming tight by day. In Southwestern China area, particularly inside the province mountain and hill is numerous in Guizhou, the Engineering Project Construction of surrounding city often addressing on mountain Body hillside fields, simultaneously because the special karst area landforms in Guizhou province, causes that massif rock stratum stability in the large is not good, and top layer is molten Ditch, fluid bowl, internal solution cavity, underground river development are numerous, and bedrock relief is larger.On this basis, excavation of foundation pit can be formed from level to level High-low bay, for this in step-like high-low bay base form, adds the geological environment and abundant subsoil water of complexity, to base The Yield rainfall relation in hole proposes the technical requirements of sternness.Traditional substrate drainage refers to the substrate piecemeal draining under different level, Economy and effective drainage effect can not be reached.
The content of the invention
It is an object of the invention to:A kind of casta region stepped ramp type basement drain structure and its construction party are provided Method, to solve traditional substrate drainage, it is impossible to reach the problem of economy and effective drainage effect.
To solve the above problems, intend adopting such a casta region stepped ramp type basement drain structure, underground The bottom of room is the substrate of stepped ramp type distribution, and bases are equipped with base plate, at least one is provided with the outside of outer wall of basement Weeper drain with drainage grade, is provided with sump on the bottom step of substrate, the lower end of water pipe is extended in sump, water The other end of pipe is extended in the cistern arranged on the positive negative zero top board face of basement, and self priming pump is correspondingly arranged in sump, Water in cistern is watered flowers and toilet water for gardens, reaches the purpose of the recycling of water resource, reduces water resource Waste.
In aforementioned discharge structure, substrate includes bottom step, intermediate layer step and top layer step, and outer wall of basement is along substrate Surrounding build, the outside surrounding of outer wall of basement is provided with the weeper drain that drainage grade is 1%, by water from Weight, introduces the water in sump;
In aforementioned discharge structure, the sump has two, and two sumps are respectively arranged at the side of intermediate layer step The two ends of wall bottom, the lower end of two water pipes is extended respectively in two sumps, is provided with self priming pump in two sumps, and two The other end of individual water pipe is extended in cistern, wherein, in the base plate surrounding of same absolute altitude, weeper drain is set, it is blind by draining Ditch collects upper water, so as to reduce the hydraulic pressure of basement bottom board, reduces the quantity of uplift pile below basement bottom board.It is high in foundation ditch It is low to be attached using elbow across connection, water is directly drained to slightly lower base surface, water is drained into more using same principle In low base plate french drain, until water is collected in low base surface sump, water is evacuated to into the water-retention of the positive negative zero top board of basement Chi Zhong;
In aforementioned discharge structure, the water pipe is arranged at the inner side of outer wall of basement;
In aforementioned discharge structure, weeper drain includes pvc pipe, coarse sand loaded filter, cobble loaded filter and blotter, rubble In french drain bottom, pvc pipe is arranged at the top of blotter, and cobble loaded filter along the length direction of weeper drain to setting cushion With the outside that coarse sand loaded filter is coated on successively pvc pipe.
Its construction method is as follows:
Before excavation, spill Calx survey along the timber of measurement group setting-out and set absolute altitude, then excavated along Calx line with excavator, to control Linear and depth is made, foundation pit earth is transported in time, then according to the Calx line of setting-out and the measurement of the level carry out manual amendment foundation ditch;
The gradient, cross dimensions, the depth of groove are noted in digging process, after groove digs, groove is detected, and Jing After examination, the construction of weeper drain ditch body is carried out, then filled with plain soil or clay on the top of weeper drain, be filled to and set Meter is specified at absolute altitude;
For the process plugged into of weeper drain at high-low bay, using pvc pipe elbow in high-low bay foundation ditch connection by two Pipe is attached;
Sump is excavated by design attitude, after the completion of sump is excavated, by design requirement the steel of bottom of pond plate and side wall is completed Muscle colligation, it is qualified by inspection after, pour underplate concrete, self priming pump is configured in sump;
Cistern is set by design requirement in the positive and negative null range of annex top board, side wall adopts armored concrete, will by design Ask and constructed;
Self priming pump is set in sump, water pipe is set along outer wall of basement, be evacuated in the hydrops in sump by water pump In the cistern on top, the water collected in cistern is connected with the toilet water system of water for afforestation and/or annex, It is directly used in gardens to water flowers and/or toilet water.
Compared with prior art, the present invention is solved well in traditional substrate drainage, by different base absolute altitude The principle of piecemeal draining, not only diseconomy but also can not reach effective drainage effect.By using this invention, can be sufficiently sharp With the thought of " drop row combine ", at high base plate based on hydrophobic and precipitation, at low base plate based on draining.For foundation ditch Yield rainfall relation provides a brand-new thinking.Again, the theory of structure fusion environmental protection and water saving, the water that french drain is collected is entered Gone effective secondary utilization, energetically promoted engineering sustainable development theory.The deficiencies in the prior art are overcome with this.
Description of the drawings
Fig. 1 is the dimensional structure diagram (omitting the outer wall of basement part of both sides) of the present invention;
Fig. 2 is the overlooking the structure diagram of the present invention;
Fig. 3 is weeper drain construction drawing;
Fig. 4 is the generalized section of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, further will be made to invention by accompanying drawing below Ground is described in detail.
Embodiment:
Referring to figs. 1 to Fig. 4, the present embodiment provides the ultra-deep foundation pit stepped ramp type height under the conditions of a kind of casta region Across basement bottom board discharge structure, the structure can effectively replace traditional blind drainage, can reach safe, economical, effective Ultra-deep foundation pit reducing and bailing effect.
Under unique karst Mountain Conditions, define in the Excavation Process of deep basal pit in stepped ramp type point The substrate 1 of cloth, is equipped with base plate 2 at substrate 1, substrate 1 includes bottom step 11, intermediate layer step 12 and top layer step 13, ground Lower room exterior wall 3 is built along the surrounding of substrate 1, and the outside surrounding of outer wall of basement 3 is provided with the draining that drainage grade is 1% French drain 4, by the deadweight of water, introduces the water in sump 5, and sump 5, sump 5 are provided with the bottom step 11 of substrate 1 Have two, two sumps 5 are respectively arranged at the two ends of the sidewall bottom of intermediate layer step 12, the lower end point of two water pipes 8 Do not extend in two sumps 5, in two sumps 5 self priming pump is provided with, the other end of two water pipes 8 is extending basement just In the cistern 7 arranged on negative zero top board face 6, water pipe 8 is arranged at the inner side of outer wall of basement 3, and the water in cistern is used for garden Woods is watered flowers and toilet water, reaches the purpose of the recycling of water resource, reduces the waste of water resource.
Weeper drain 4 includes pvc pipe 41, coarse sand loaded filter 42, cobble loaded filter 43 and blotter 44, blotter 44 French drain bottom is layed in, pvc pipe 41 is arranged at the top of blotter 44, and cobble anti-filter along the length direction of weeper drain 4 Layer 43 and coarse sand loaded filter 42 are coated on successively the outside of pvc pipe 41;
1st, component and fitting size design
The diameter of pvc pipe 41 is divided to two kinds:The caliber of pvc pipe 41 is in corresponding weeper drain at the absolute altitude of top layer step 13 300mm, the caliber of pvc pipe 41 is 400mm in corresponding weeper drain at the absolute altitude of intermediate layer step 12, at the absolute altitude of bottom step 11 pair The caliber of pvc pipe 41 of the weeper drain answered is 400mm;
Cistern 7 is water tank (6000mm (length) × 6000mm (width) × 2000mm (height));
Sump 5 (5000mm (length) × 5000mm (width) × 3000mm (height));
Water pipe 8 is the fire extinguisher canvas hose of diameter 200mm.
2nd, operational approach
For the exterior wall blind ditch construction in whole foundation ditch be divided at high base plate blind ditch construction at blind ditch construction, central floor panel, Blind ditch construction at low base plate.Blind ditch construction in this 3rd area can organize the construction method of parallel construction.Simultaneously to this three region Basement bottom board exterior wall at french drain is excavated by the way of hand digging.
Before excavation, spill Calx survey along the timber of measurement group setting-out and set absolute altitude, then excavated along Calx line with excavator, to control Make linear and depth.Foundation pit earth is transported in time, then according to the Calx line of setting-out and the measurement of the level carry out manual amendment foundation ditch.Open It should be noted that the gradient, cross dimensions, the depth of groove during digging.After groove digs, it is necessary to which groove is detected.And by inspection Afterwards, the construction of french drain ditch body is carried out by Fig. 3.Then filled with plain soil or clay on the top of french drain, be filled to design and specify At absolute altitude.
For the process plugged into of french drain at high-low bay, using pvc pipe elbow two pipes are entered in high-low bay foundation ditch connection Row connection, for pvc pipe caliber is 300mm in french drain at high base surface absolute altitude;Pvc pipe pipe in french drain at the absolute altitude of central floor panel face Footpath is 400mm;The pvc pipe caliber of french drain is 400mm at low base surface absolute altitude.
Sump is excavated by design attitude, the size of sump is 5000mm (length) × 5000mm (width) × 3000mm (height).After the completion of sump is excavated, by design requirement the reinforcing bar colligation of bottom of pond plate and side wall is completed, it is qualified by inspection after, pour Underplate concrete (wherein concrete will have certain impermeability), configures self priming pump in sump.
Header tank is set by design requirement in the positive and negative null range of annex top board, the size of water tank be 6000mm (length) × 6000mm (width) × 2000mm (height), side wall adopts armored concrete, is constructed by design requirement, anti-for water tank bottom The build of water layer, it should meet design waterproof requirement, the waterproof of water tank bottom and side wall is set on request.
By self priming pump, water pipe is set along underground external wall, the hydrops in sump are evacuated to respectively by top by water pump In water tank, the water collected in the water tank on top is connected, directly with the toilet water system of water for afforestation and part annex Water flowers and toilet water for gardens, so as to reach water reuse purpose.
The thought of fusion " drop row combine " is shallow to meet groundwater level depth, stepped ramp type is formed in Excavation Process high It is low across the new drainage measure of foundation ditch, reach cost-effective draining purpose, this measure is not only simple in structure, quick construction, It is safe and reliable, and deep basal pit high-low bay draining is thoroughly solved the problems, such as, construction cost is greatlyd save, improve construction effect Rate, it is to avoid situations such as infiltration occurs in basement.
Again, water resource, as an important component part of whole ecological environment, is both to affect economic civilization life, city The flourishing restraining factors in city are again very close with the relation of weather, weather.The secondary utilization of water resource is particularly important. The subsoil water that french drain collection comes is carried out into secondary utilization, fusion environmental protection and water-saving ideas, for the sustainable development of engineering, is had Very strong impetus.

Claims (6)

1. a kind of casta region stepped ramp type basement drain structure, the bottom of basement is the substrate of stepped ramp type distribution (1), it is characterised in that:Substrate (1) place is equipped with base plate (2), is provided with least one on the outside of outer wall of basement (3) and has The weeper drain (4) of drainage grade, is provided with sump (5) on the bottom step (11) of substrate (1), the lower end of water pipe (8) is stretched To sump (5), the other end of water pipe (8) is extended in the cistern (7) arranged on the positive negative zero top board face (6) of basement, and Self priming pump is correspondingly arranged in sump (5).
2. a kind of casta region stepped ramp type basement drain structure according to claim 1, it is characterised in that:Substrate (1) including bottom step (11), intermediate layer step (12) and top layer step (13), surrounding of the outer wall of basement (3) along substrate (1) Build, the outside surrounding of outer wall of basement (3) is provided with the weeper drain (4) that drainage grade is 1%.
3. a kind of casta region stepped ramp type basement drain structure according to claim 1, it is characterised in that:It is described Sump (5) has two, and two sumps (5) are respectively arranged at the two ends of the sidewall bottom of intermediate layer step (12), two The lower end of water pipe (8) is extended respectively in two sumps (5), and in two sumps (5) self priming pump, two water pipes are provided with (8) the other end is extended in cistern (7).
4. a kind of casta region stepped ramp type basement drain structure according to claim 1, it is characterised in that:It is described Water pipe (8) is arranged at the inner side of outer wall of basement (3).
5. a kind of casta region stepped ramp type basement drain structure according to claim 1, it is characterised in that:Draining French drain (4) includes pvc pipe (41), coarse sand loaded filter (42), cobble loaded filter (43) and blotter (44), blotter (44) French drain bottom is layed in, pvc pipe (41) is arranged at the top of blotter (44), and ovum along the length direction of weeper drain (4) Stone loaded filter (43) and coarse sand loaded filter (42) are coated on successively the outside of pvc pipe (41).
6. a kind of construction method of casta region stepped ramp type basement drain structure, it is characterised in that include:
Before excavation, spill Calx survey along the timber of measurement group setting-out and set absolute altitude, then excavated along Calx line with excavator, with control line Shape and depth, foundation pit earth is transported in time, then according to the Calx line of setting-out and the measurement of the level carry out manual amendment foundation ditch;
The gradient, cross dimensions, the depth of groove are noted in digging process, after groove digs, groove is detected, and by inspection Afterwards, the construction of weeper drain ditch body is carried out, is then filled with plain soil or clay on the top of weeper drain, be filled to design and refer to Calibration eminence;
For the process plugged into of weeper drain at high-low bay, using pvc pipe elbow two pipes are entered in high-low bay foundation ditch connection Row connection;
Sump is excavated by design attitude, after the completion of sump is excavated, the reinforcing bar for completing bottom of pond plate and side wall by design requirement is tied up Prick, it is qualified by inspection after, pour underplate concrete, self priming pump is configured in sump;
Cistern is set by design requirement in the positive and negative null range of annex top board, side wall adopts armored concrete, enters by design requirement Row construction;
Self priming pump is set in sump, water pipe is set along outer wall of basement, the hydrops in sump are evacuated to by top by water pump Cistern in, in cistern collect water, be connected with the toilet water system of water for afforestation and/or annex, directly Water flowers for gardens and/or toilet water.
CN201710059006.XA 2017-01-23 2017-01-23 Karst region step-type basement water drainage structure and construction method thereof Pending CN106592756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710059006.XA CN106592756A (en) 2017-01-23 2017-01-23 Karst region step-type basement water drainage structure and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710059006.XA CN106592756A (en) 2017-01-23 2017-01-23 Karst region step-type basement water drainage structure and construction method thereof

Publications (1)

Publication Number Publication Date
CN106592756A true CN106592756A (en) 2017-04-26

Family

ID=58586555

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710059006.XA Pending CN106592756A (en) 2017-01-23 2017-01-23 Karst region step-type basement water drainage structure and construction method thereof

Country Status (1)

Country Link
CN (1) CN106592756A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110820776A (en) * 2019-11-18 2020-02-21 广州珠江工程建设监理有限公司 Siphon drainage system for blind ditch of foundation pit
CN111851600A (en) * 2020-08-07 2020-10-30 昆山市天工建设工程有限公司 House underground water waterproof structure and construction method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110820776A (en) * 2019-11-18 2020-02-21 广州珠江工程建设监理有限公司 Siphon drainage system for blind ditch of foundation pit
CN111851600A (en) * 2020-08-07 2020-10-30 昆山市天工建设工程有限公司 House underground water waterproof structure and construction method

Similar Documents

Publication Publication Date Title
CN102454167B (en) The construction method of especially big & deep open caisson
CN103046565B (en) Draining method for ultra-deep batholith deep foundation pit
CN102418347B (en) Drainage construction method for blind drain and sump wells in deep foundation pit
CN203603105U (en) Wall plate type ecological retaining wall bank protection structure
CN102535488B (en) Waterproof construction method for bottom plate of high-water-level basement
CN103741714A (en) Construction method for full cover-excavation reverse method of underground engineering
CN203530996U (en) Multi-well-point combined type precipitation facility
CN101864779A (en) Building deep soil excavating rectification method
CN107587516A (en) A kind of efficient sealing of Follow-up type hinders sand precipitation hybrid system and its construction method
CN106592756A (en) Karst region step-type basement water drainage structure and construction method thereof
CN105179011B (en) A kind of tunnel closure facility and its method for blocking
CN103953008B (en) A kind of modified mixed dam being applicable to Tailings Dam
CN104164895A (en) Basement generating no water buoyant force
CN203475486U (en) Basement producing no water buoyancy
CN104110038A (en) Construction method for large-area pit support structure in deep-sludge type soft soil area
CN206467765U (en) A kind of casta region stepped ramp type basement drain structure
CN202440826U (en) Waterproof system for high-water level basement foundation slabs
CN101634140A (en) Consolidation method of soft earth foundation
CN110438999A (en) A kind of deep basal pit slope excavation construction method of rich groundwater
CN208934002U (en) A kind of barrier wall structure
CN207143981U (en) 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure
CN107724405B (en) Dewatering of foundation construction method in a kind of underground pipe construction
CN110185051A (en) Deep narrow excavation water discharge method
CN110080169A (en) A kind of construction method reclaimed fields from the sea utilized based on basement
CN204919578U (en) Vacuum tubular well precipitation system under special geological conditions

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination