CN104358275B - Darker elevator shaft or collecting well construction method - Google Patents
Darker elevator shaft or collecting well construction method Download PDFInfo
- Publication number
- CN104358275B CN104358275B CN201410659254.4A CN201410659254A CN104358275B CN 104358275 B CN104358275 B CN 104358275B CN 201410659254 A CN201410659254 A CN 201410659254A CN 104358275 B CN104358275 B CN 104358275B
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- elevator shaft
- collecting well
- plain concrete
- darker
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses the construction method of a kind of darker elevator shaft or collecting well, after comprising the steps: step one, completing elevator shaft or collecting well pit earthwork, complete backfill element soil successively, construction that plain concrete strengthens bed course, bottom waterproof roll layer, pea gravel concreten topping; Step 2, making sidewall plain concrete fetal membrane, and fill out backfill element soil at the outer layering rammer of plain concrete fetal membrane, sidewall waterproof roll layer, protection brick wall is set gradually at plain concrete fetal membrane inwall, and being embedded with sealing up screw within the walls at protection tile, the space that protection brick wall and pea gravel concreten topping are encircled a city is the well that catchments; Step 3, catchmenting in well, utilize sealing up screw assembling reinforcement to make toe of wall and hang mould template and entirety erects mould template, concreting completes the construction of whole elevator shaft or collecting well.This construction method can prevent diving infiltration fetal membrane from destroying waterproofing course, not only increases waterproof ability, and can prevent Form floating, raising concrete construction quality.
Description
Technical field
The present invention relates to underground concrete structure construction field, be specifically related to the darker elevator shaft of one or collecting well construction method.
Background technology
During elevator shaft when groundwater table is higher or collecting well are constructed, even if the continuous precipitation of conventional waterproof coiled material technique also cannot contain that soil diving collects and permeates around brick fetal membrane effectively, thus waterproof roll is caused to be destroyed; Model sheetinstallat often adopts the drum formwork hanging mould or bottom shutoff, thoroughly cannot solve deep-well template " floating " problem in casting process; Deep-well concreting cannot complete by primary concreting, easily forms the cold seam of construction, antiseep difficult treatment; In concreting process, ponding pump drainage is ineffective affects waterproof concrete Forming Quality.Therefore, we are in the urgent need to a kind of new construction method, to solve the deficiencies in the prior art.
Summary of the invention
The object of the present invention is to provide the darker elevator shaft of one or collecting well construction method, the method can prevent diving infiltration fetal membrane from destroying waterproofing course, reduces deep-well template peace and tears difficulty of construction open, improve waterproof concrete construction quality.
The present invention is achieved in that the darker elevator shaft of one or collecting well construction method, comprises the steps:
Step one, complete elevator shaft or collecting well pit earthwork after, construct to bottom foundation ditch
(1) backfill element soil;
(2) on the plain soil of backfill, make plain concrete and strengthen bed course;
(3) strengthen bed course being arranged bottom waterproof roll layer at plain concrete;
(4) on the waterproof roll layer of bottom, pea gravel concreten topping is made;
Step 2, complete foundation pit side-wall construction
(1) sidewall plain concrete fetal membrane is made;
(2) backfill element soil is filled out at the outer layering rammer of plain concrete fetal membrane;
(3) sidewall waterproof roll layer is set on plain concrete fetal membrane inwall;
(4) inside sidewall waterproof roll layer, build protection brick wall by laying bricks or stones, described protection tile is embedded with sealing up screw within the walls; The space that protection brick wall and pea gravel concreten topping are encircled a city is the well that catchments;
Step 3, to build
(1) catchmenting in well, utilizing sealing up screw assembling reinforcement to make toe of wall and hanging mould template, hanging concreting in mould template to toe of wall;
(2) make overall perpendicular mould template, erect concreting in mould template to entirety, complete the construction of whole elevator shaft or collecting well.
In the present invention, after elevator shaft or collecting well pit earthwork complete, first build plain concrete fetal membrane; Remove fetal membrane template subsequently, waterproof roll is arranged to the inwall of plain concrete fetal membrane and does waterproofing work, build protection brick wall by laying bricks or stones; At protection tile, one plain concrete band is set within the walls, and embedded water stop screw rod.Carry out well bottom cushion (plain concrete reinforcement bed course) and waterproof slab topping (bottom waterproof roll layer) construction by former design, prevent submergence pressure from destroying well bottom cushion (plain concrete reinforcement bed course) and bottom waterproof roll layer thereof.Should symmetrically manually backfill when the outer layering of plain concrete fetal membrane is rammed and filled out and backfill plain soil, with the destruction preventing plain concrete fetal membrane to be subject to soil diving lateral pressure.By design and installation well construction reinforcing bar, utilize embedded water stop screw rod to carry out template construct installation, install simple, firm.Concreting is carried out at twice, first builds shaft bottom and the following concrete of borehole wall toe, then builds the above concrete of borehole wall toe to sole plate, and constuction joint is installed waterstop and carried out waterproofing work.
This construction method technique is simple, easy to operate; Bed course, foundation ditch waterproof roll layer pea gravel concreten topping is strengthened by the plain concrete bottom foundation ditch, and the plain concrete fetal membrane of foundation pit side-wall, sidewall waterproof roll layer, protection brick wall making, can prevent diving infiltration fetal membrane from destroying waterproofing course, not only increase waterproof ability, and improve concrete construction quality; Employing embedded water stop screw rod installation toe of wall hangs mould template and entirety erects mould template, reduces deep-well template peace and tears difficulty of construction open, improve efficiency of construction.
Accompanying drawing explanation
Fig. 1 is the construction schematic diagram of step one of the present invention and step 2.
Fig. 2 is borehole wall toe template construct scheme of installation.
Fig. 3 is the well wall form fabrication and installation schematic diagram that catchments.
In figure: 1-sidewall backfills plain soil layer, 2-plain concrete fetal membrane, 3-1-sidewall waterproof roll layer, 3-2-bottom waterproof roll layer, 4-protection brick wall, the 5-well that catchments, 6-pea gravel concreten topping, 7-plain concrete strengthens bed course, 8-plain concrete band, 9-sealing up screw, 10-toe of wall hangs mould, 11-overall perpendicular mould, 12-sealing rod, 13-bottom backfills plain soil layer, 14-overall perpendicular mould supports.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further.
See Fig. 1-Fig. 3, the darker elevator shaft of one or collecting well construction method, comprise the steps:
Step one, complete elevator shaft or collecting well pit earthwork after, construct to bottom foundation ditch
(1) the plain soil layer 13 of bottom backfill is made in bottom;
(2) backfill in bottom on plain soil layer 13 and make plain concrete reinforcement bed course 7;
(3) strengthen bed course 7 being arranged bottom waterproof roll layer 3-2 at plain concrete;
(4) on the waterproof roll layer 3-2 of bottom, pea gravel concreten topping 6 is made;
Step 2, foundation pit side-wall to be constructed
(1) sidewall plain concrete fetal membrane 2 is made;
(2) manually backfill in plain concrete fetal membrane 2 external symmetry, layering rams and fill out backfill element soil, make the outer sidewall that formed of plain concrete fetal membrane 2 backfill plain soil layer 1;
(3) sidewall waterproof roll layer 3-1 is set on plain concrete fetal membrane 2 inwall;
(4) inside sidewall waterproof roll layer 3-1, build protection brick wall 4 by laying bricks or stones, be embedded with in described protection brick wall 4 in T-shaped sealing up screw 9; The space that protection brick wall 4 and pea gravel concreten topping 6 are encircled a city is the well 5 that catchments;
Step 3, to build
(1) catchmenting in well 5, utilizing sealing up screw 9 assembling reinforcement to make toe of wall and hanging mould template, hanging concreting in mould template to toe of wall, make toe of wall and hang mould 10;
(2) make overall perpendicular mould template, erect concreting in mould template to entirety, complete the construction of whole elevator shaft or collecting well.
In step 3, can before the overall perpendicular mould template of making, sealing rod 12 is laid in the concrete upper surface of hanging mould 10 at toe of wall, also when hanging concreting in mould template to toe of wall, waterstop can be laid, to reach the object of waterproof.Must surrounding symmetry build when erecting concreting in mould template to entirety, layering is vibrated, and to realize, concreting is closely knit reliably, the object of antiseep.
In the present invention; in order to reach better waterproof effect; can arrange plain concrete band 8 inside protection brick wall 4, also plain concrete can be strengthened bed course 7 and bottom waterproof roll layer 3-2 simultaneously and carry out thickenings process, wherein the thickness of plain concrete reinforcement bed course is 200mm.
In the present invention, described protection brick wall 4 is thick 120 protection brick walls, and described plain concrete fetal membrane 2 is thick 300 plain concrete fetal membranes, and bed course 7 strengthened by described plain concrete is that bed course strengthened by thick 200 plain concretes.Darker elevator shaft or collecting well refer to that the degree of depth is greater than elevator shaft or the collecting well of 2m.
By the improvement of construction method, the key technology of construct to elevator shaft or collecting well and critical process have carried out following optimization:
1, plain concrete fetal membrane and protection brick wall construction
After elevator shaft or collecting well pit earthwork complete, should first build plain concrete strengthen bed course 7 and with the plain concrete fetal membrane 2 of bed course with label; Remove plain concrete fetal membrane template again, layering is rammed and is filled out the outer backfill 1 of fetal membrane, and carries out base treatment to plain concrete fetal membrane 2 inwall, does waterproof roll layer, builds protection brick wall 4 by laying bricks or stones; Finally in protection brick wall 4, arrange one plain concrete band 8, embedded water stop screw rod 9, sealing up screw 9 can be used as elevator shaft or the borehole wall toe shuttering supporting drawknot point that catchments.Due to elevator shaft or collecting well component less, elevator shaft or collecting well base plate also less, can by former design elevator shaft or collecting well bottom cushion (concrete reinforcement bed course) thickness and waterproof slab topping (bottom waterproof roll layer) construction, or only former design elevator shaft or collecting well bottom cushion (concrete reinforcement bed course) thickness and waterproof slab topping (bottom waterproof roll layer) need be carried out thickening process, utilize deadweight can prevent soil submergence pressure from destroying elevator shaft or collecting well bottom cushion (concrete reinforcement bed course) and waterproof slab topping (bottom waterproof roll layer).Equally due to elevator shaft or collecting well plain concrete fetal membrane 2 component less, fetal membrane wall is at a distance of nearer, the symmetry manually backfill well earthwork is carried out again after first will carrying out elevator shaft or collecting well fetal membrane monobloc cast, therefore elevator or collecting well plain concrete fetal membrane 2 need are constructed by former design elevator (or catchmenting) thickness of shaft wall, the soil lateral compression that the is rich in diving destruction to elevator shaft or collecting well fetal membrane can be met.When groundwater table is higher or soil diving is abundant cannot carry out Yield rainfall relation process time; waterproof roll is caused to destroy for preventing soil diving infiltration plain concrete reinforcement bed course 7 and plain concrete brick band 8; except building protection brick wall 4 by laying bricks or stones and arrange outside pea gravel concreten topping 6 in shaft bottom except the waterproof roll layer of the borehole wall, also can carry out building plain concrete and strengthen bed course and plain concrete fetal membrane outside plain concrete brick band 8 and pea gravel concreten topping 6.
2, construct in advance bottom elevator shaft or collecting well
After elevator shaft or collecting well reinforcing bar binding complete, if elevator shaft or the following reinforcing bar of collecting well reinforcing bar toe of wall and basic bed die are thrown off, can first colligation elevator shaft or collecting well reinforcing bar, utilize pre-buried sealing up screw 9 to carry out the fabrication and installation of overall perpendicular mould 11 according to the support system that toe of wall hangs mould 10, and build complete elevator shaft or collecting well base plate and borehole wall toe concrete in advance.
3, elevator shaft or the construction of the collecting well borehole wall
Elevator shaft or collecting well sidewall concrete (overall perpendicular mould) should be built in the lump with sole plate concrete, during concreting, the elevator shaft of the base plate that utilization completes in advance and toe formation or the well that catchments are as long-pending well water pumping, and notice that surrounding symmetry is built, layering is vibrated, now elevator shaft or collecting well can adopt the cylinder mould support system of bottom-open to make overall perpendicular mould and support 14, and utilize embedded water stop screw rod 9 to carry out bottom reinforcing; Before entirety erects mould model sheetinstallat, should borehole wall toe concrete surface lay sealing rod 12 or in the concreting of the borehole wall toe time, first place waterstop.
Claims (7)
1. darker elevator shaft or a collecting well construction method, is characterized in that comprising the steps:
Step one, complete elevator shaft or collecting well pit earthwork after, construct to bottom foundation ditch
(1) backfill element soil;
(2) on the plain soil of backfill, make plain concrete and strengthen bed course;
(3) strengthen bed course being arranged bottom waterproof roll layer at plain concrete;
(4) on the waterproof roll layer of bottom, pea gravel concreten topping is made;
Step 2, complete foundation pit side-wall construction
(1) sidewall plain concrete fetal membrane is made;
(2) backfill element soil is filled out at the outer layering rammer of plain concrete fetal membrane;
(3) sidewall waterproof roll layer is set on plain concrete fetal membrane inwall;
(4) inside sidewall waterproof roll layer, build protection brick wall by laying bricks or stones, described protection tile is embedded with sealing up screw within the walls; The space that protection brick wall and pea gravel concreten topping surround is the well that catchments;
Step 3, to build
(1) catchmenting in well, utilizing sealing up screw assembling reinforcement to make toe of wall and hanging mould template, hanging concreting in mould template to toe of wall;
(2) make overall perpendicular mould template, erect concreting in mould template to entirety, complete the construction of whole elevator shaft or collecting well;
Described darker elevator shaft or collecting well refer to that the degree of depth is greater than elevator shaft or the collecting well of 2m.
2. darker elevator shaft according to claim 1 or collecting well construction method, is characterized in that: in step 3, before making overall perpendicular mould template, the concrete surface hanging mould at toe of wall lays sealing rod.
3. darker elevator shaft according to claim 1 or collecting well construction method, is characterized in that: in step 3, when hanging concreting in mould template to toe of wall, lays waterstop.
4. the darker elevator shaft according to Claims 2 or 3 or collecting well construction method, is characterized in that: in step 3, and when erecting concreting in mould template to entirety, symmetry is built, and layering is vibrated.
5. darker elevator shaft according to claim 1 or collecting well construction method, is characterized in that: in step 2, is provided with plain concrete band within the walls at protection tile.
6. darker elevator shaft according to claim 1 or collecting well construction method, is characterized in that: in step one, plain concrete strengthened bed course and bottom waterproof roll layer and carry out thickening process.
7. darker elevator shaft according to claim 1 or collecting well construction method, is characterized in that: should symmetrical artificial backfill when ramming fill out backfill element soil to the outer layering of plain concrete fetal membrane in step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410659254.4A CN104358275B (en) | 2014-11-19 | 2014-11-19 | Darker elevator shaft or collecting well construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410659254.4A CN104358275B (en) | 2014-11-19 | 2014-11-19 | Darker elevator shaft or collecting well construction method |
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| CN104358275A CN104358275A (en) | 2015-02-18 |
| CN104358275B true CN104358275B (en) | 2016-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111705905A (en) * | 2020-06-30 | 2020-09-25 | 中建四局建设发展有限公司 | Construction method of integral prefabricated water collecting well |
Families Citing this family (5)
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|---|---|---|---|---|
| CN107489258A (en) * | 2017-08-14 | 2017-12-19 | 东南电梯股份有限公司 | The prefabricated pit of elevator hoistways, elevator hoistways pit method of construction and installation elevator |
| CN110004962A (en) * | 2019-04-12 | 2019-07-12 | 上海建工七建集团有限公司 | A kind of prefabricated reinforced concrete sump loose tool structure and its construction method |
| CN110821163A (en) * | 2019-11-26 | 2020-02-21 | 中国十七冶集团有限公司 | Construction method for preventing upward floating of elevator shaft hoisting formwork |
| CN111608363B (en) * | 2020-07-02 | 2024-05-24 | 中国建筑第四工程局有限公司 | Hoistway construction elevator foundation |
| CN114482061A (en) * | 2021-12-27 | 2022-05-13 | 华北冶建工程建设有限公司 | Excavation method for foundation pit of elevator of middle-rise residential building in silt soil |
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Patent Citations (5)
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| KR20050027192A (en) * | 2004-03-25 | 2005-03-18 | 한본인더스트리 주식회사 | A waterproofing layer protect matrial |
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| CN111705905A (en) * | 2020-06-30 | 2020-09-25 | 中建四局建设发展有限公司 | Construction method of integral prefabricated water collecting well |
| CN111705905B (en) * | 2020-06-30 | 2021-05-14 | 中建四局建设发展有限公司 | Construction method of integral prefabricated water collecting well |
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| CN104358275A (en) | 2015-02-18 |
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