CN115059290A - Reverse construction method for underground outer wall of narrow fertilizer groove - Google Patents
Reverse construction method for underground outer wall of narrow fertilizer groove Download PDFInfo
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- CN115059290A CN115059290A CN202210777341.4A CN202210777341A CN115059290A CN 115059290 A CN115059290 A CN 115059290A CN 202210777341 A CN202210777341 A CN 202210777341A CN 115059290 A CN115059290 A CN 115059290A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 90
- 238000010276 construction Methods 0.000 title claims abstract description 72
- 238000013461 design Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000004078 waterproofing Methods 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 claims description 2
- 239000011241 protective layer Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000010422 painting Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 77
- 238000009415 formwork Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
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- 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
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/12—Back-filling of foundation trenches or ditches
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
- E04G17/0655—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to the technical field of construction of underground structures of buildings, in particular to a reverse construction method of an underground outer wall of a narrow fertilizer groove. The method comprises the following construction steps: step 1, constructing a keel and a first template in a fertilizer tank, arranging a support structure in the fertilizer tank for supporting the keel, and fixing the first template on the keel; step 2, pouring concrete in the fertilizer groove to fill the fertilizer groove back and forth, wherein the outer side of the concrete is restrained by the side wall of the fertilizer groove, and the inner side of the concrete is restrained by a first template; the concrete in the fertilizer groove is solidified to form a fixed outer concrete structure; step 3, removing the first template to expose the inner wall of the outer concrete structure, and painting a waterproof and waterproof protective layer; step 4, erecting a second template, namely arranging the second template at the position of the inner template of the underground outer wall according to the design; and 5, pouring the underground outer wall, wherein the concrete of the underground outer wall is poured, the inner side of the concrete of the underground outer wall is restrained by the second template, and the outer side of the concrete of the underground outer wall is restrained by the outer concrete structure.
Description
Technical Field
The invention relates to the technical field of construction of underground structures of buildings, in particular to a reverse construction method of an underground outer wall of a narrow fertilizer groove.
Background
The construction of the underground structure is started after a foundation pit fertilizer groove is excavated in the underground structure, and the fertilizer groove is backfilled after the construction of the underground outer wall of the underground structure is completed. When carrying out the underground outer wall construction of underground structure, fertile groove department sets up supporting structure such as scaffold frame of construction, lets constructor can be under construction to underground structure in fertile groove.
Along with the continuous progress and development of society, buildings with various functions are increased day by day, and the condition that buildings are additionally arranged on adjacent plots occurs occasionally, so that when foundation pit supporting design is carried out, the adjacent building parts are generally emphasized for supporting, meanwhile, the underground outer wall is generally thick, and the fertilizer tank of the parts is narrow due to the reason, so that the important process construction requirements of conventional external frame erection, underground outer wall formwork erection, underground outer wall waterproofing and the like cannot be met, the construction progress is slow, the construction quality of concrete, waterproofing and backfill soil is reduced, and leakage is easy to generate.
Disclosure of Invention
The invention relates to a reverse construction method of an underground outer wall of a narrow fertilizer groove.
The technical problem to be solved is that: when a construction building is adjacent to an existing building, the fertilizer tank is narrow, an external frame, an underground external wall template and a waterproof and protective layer of the underground external wall cannot be effectively arranged in the fertilizer tank, and construction of the underground external wall of the basement is affected.
In order to solve the technical problem, the invention provides a reverse construction method of an underground outer wall of a narrow fertilizer groove.
A reverse construction method of an underground outer wall of a narrow fertilizer groove comprises the following construction steps:
step 1, constructing a keel in a fertilizer groove and a first template, arranging a supporting structure in the fertilizer groove for supporting the keel, and fixing the first template on the keel.
And 3, removing the first template, wherein the first template is removed to expose the inner wall of the outer concrete structure.
And 4, erecting a second template, namely arranging the second template at the position of the inner template of the underground outer wall according to the design.
And 5, pouring the underground outer wall, wherein the concrete of the underground outer wall is poured, the inner side of the concrete of the underground outer wall is restrained by the second template, and the outer side of the concrete of the underground outer wall is restrained by the outer concrete structure.
Preferably, after step 3, firstly, the construction of a waterproof layer of the underground outer wall is carried out, and the waterproof layer is laid on the inner wall of the outer concrete structure.
Preferably, the waterproof layer comprises a plurality of layers, the plurality of layers of waterproof layers are constructed in reverse, and the waterproof layers are arranged on the outer concrete structure in a reverse construction sequence of the conventional method for waterproofing the underground outer wall.
Preferably, before step 1, the bottom of the underground outer wall is provided with a guide wall formed by extending a bottom plate structure upwards, the waterproof layer is firstly laid on the guide wall, the top of the waterproof layer is thrown upwards, and then step 1 is carried out.
Preferably, when the waterproof construction of the underground outer wall is carried out, the waterproof layer of the underground outer wall is connected with the waterproof layer of the guide wall, and the tightness and the impermeability are ensured.
Preferably, in the case that the outer side of the underground outer wall is provided with the outer concrete structure and the fertilizer groove, the waterproof layer laid on the outer concrete structure throws stubble outwards.
After the step 5 is finished, laying a waterproof layer of the underground outer wall corresponding to the fertilizer groove, and connecting the waterproof layer of the underground outer wall with a waterproof layer on an outer concrete structure; and covering the seams with waterproofing membrane.
Preferably, the top of the waterproof layer of the underground outer wall provided on the outer concrete structure continues to extend and cover the inner side edge of the top of the outer concrete structure.
The bottom of the waterproof layer of the underground outer wall of the building continues to extend to the top of the outer concrete structure, and completely covers the extension section of the waterproof layer of the underground outer wall to the top of the outer concrete structure.
Preferably, the inner side of the bottom of the outer concrete structure is provided with a settlement joint, and the bottom of the settlement joint is flush with the top of the guide wall.
Preferably, when the underground structure of the building comprises a plurality of floors; the external concrete structure in the fertilizer tank is completed for many times.
Preferably, a water stop screw rod perpendicular to an underground outer wall is fixed on the keel in the step 1; the water stopping screw penetrates through the first template, and the first template is fixed on the water stopping screw; in step 3, the water stop screw rod passes through a second template and extends to the inner side of the underground outer wall, and the second template is fixed on the water stop screw rod; and a waterproof structure is arranged between the water stop screw and the underground outer wall.
Compared with the prior art, the reverse construction method of the underground outer wall of the narrow fertilizer groove has the following beneficial effects:
this project foundation ditch supporting construction is fender pile + waterproof curtain, and during the basis measurement unwrapping wire, it is too near to discover structure boundary line apart from supporting construction, and borders on the building of built mark section, according to traditional underground outer wall structure → underground outer wall is waterproof → waterproof layer → fertile groove layering backfill construction order, has template support, outer frame set up, waterproof shop pastes because of the narrow and small construction difficulty of operating space, fertile groove backfill can't the compaction, construction safety is difficult to guarantee etc. difficult problems.
The invention changes the original construction sequence of the fertilizer groove, and the fertilizer groove is filled with concrete to become an outer concrete structure before the underground outer wall of the basement is constructed. The fertilizer groove is filled in the fixed outer concrete structure, and the outer concrete structure is used as an outer template for underground outer wall pouring.
In particular, the outer concrete structure is also formed by passing through a formwork before the concrete is poured. Therefore, a supporting structure made of metal rod pieces commonly used in construction is arranged in the fertilizer tank to support the keel, then the first template is fixed by the keel, and the first template is used as a template when concrete is poured into the fertilizer tank.
The inner wall of the outer concrete structure is used as an outer template of the underground outer wall of the basement. Therefore, the inner wall of the outer concrete structure is flush with the underground outer wall of the basement, so the first template is arranged at the outer template of the originally designed underground outer wall, and the thickness of the template is inwards staggered.
Through the mode, the narrow fertilizer groove which can not be operated by workers is filled in advance. The fertilizer groove filled in advance is used as an outer template of the underground outer wall body. Workers do not need to enter the fertilizer tank for operation, and the problem of limited space operation is solved. On the other hand, the fertilizer groove is filled in advance, and the construction progress is improved.
Drawings
FIG. 1 is a schematic view of the construction method of the narrow fertilizer groove underground outer wall by the reverse construction method in step 2;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a schematic diagram of step 5;
FIG. 4 is a schematic view of a sinker seam location;
FIG. 5 is a schematic structural view of a water stop screw connected with a second template;
FIG. 6 is a schematic view of a water-proof layer at the position of a guide wall for throwing away stubbles;
FIG. 7 is a schematic view of a water barrier on top of the outer concrete;
FIG. 8 is a schematic view of the waterproof layer at the joint portion of the fertilizer tank in a plan view.
Description of reference numerals:
1-bottom plate, 2-guide wall, 3-underground outer wall, 4-support pile, 4 a-steel wale, 4 b-crown beam, 5-fertilizer groove, 6-external concrete structure, 7-water stop screw, 8-support structure, 9-keel, 10-first template, 11-second template, 12-waterproof layer, 12 a-throwing stubble, 13-settlement joint and 14-joint strip.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of the directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as shown in reference to fig. 1, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to solve the problems that when a construction building is adjacent to an existing building, a fertilizer tank 5 is narrow, an external frame cannot be effectively arranged in the fertilizer tank 5, and construction of an underground outer wall 3 is affected, the invention provides a reverse construction method of the underground outer wall with the narrow fertilizer tank, and the reverse construction method is shown in figures 1 to 8.
A reverse construction method of an underground outer wall of a narrow fertilizer groove comprises the following construction steps:
step 1, constructing a keel 9 and a first template 10 in a fertilizer groove 5, arranging a support structure 8 in the fertilizer groove 5 for supporting the keel 9, and fixing the first template 10 on the keel 9;
and 5, pouring the underground outer wall 3, and performing concrete pouring operation on the underground outer wall 3, wherein the inner side of the concrete of the underground outer wall 3 is restrained by the second template 11, and the outer side of the concrete of the underground outer wall 3 is restrained by the outer concrete structure 6.
As shown in fig. 1 to 3, the exterior of the fertilizer tank 5 has a supporting structure of a slope, a supporting pile 4 for supporting on the supporting structure, and a steel waist beam 4a and a crown beam 4b for connecting and reinforcing. Therefore, in the present invention, the keels 9 are connected to the steel wale 4a and the crown beam 4b by means of the support structure 8 such as a steel pipe fastener or a welding process according to the circumstances. During the subsequent concrete pouring operation of the fertilizer trough 5, the support structure 8 and the keel 9 will be poured into the concrete, which will reinforce the outer concrete structure 6. And therefore the material and composition of the support structure 8, is not constrained, but only needs to be able to stably support the keel 9. The connection of the keel 9 structure and the template is then completed and will not be described in detail here.
Specifically, a triangular metal gasket is welded to the steel waist beam 4a, the inward side of the metal gasket is vertical, and then the keel 9 is welded to the metal gasket. The top of the keel 9, if further from the crown beam 4b, may be connected by a transverse metal link. The keel 9 is vertically arranged and is arranged at intervals along the side wall of the narrow fertilizer groove 5.
Here, the first template 10 and the second template 11 are only present at different times and positions.
Because the underground outer wall 3 needs to be provided with the waterproof layer 12, the general construction sequence is to construct the waterproof layer 12 after the underground outer wall 3 is finished and before the fertilizer tank 5 is backfilled. However, in the present invention, the refilling of the fertilizer tank 5 is advanced before the construction of the underground outer wall 3, so that the waterproof layer 12 of the underground outer wall 3 is first constructed after the completion of step 3, and the waterproof layer 12 is laid on the inner wall of the outer concrete structure 6. And, the waterproof layer 12 includes a plurality of layers, and the plurality of waterproof layers 12 are reversely constructed and are arranged on the outer concrete structure 6 in a reverse construction order to the conventional practice of waterproofing an underground outer wall. And (5) when the underground outer wall 3 is poured in the step 5, directly pressing the concrete of the underground outer wall 3 on the waterproof layer 12. Preferably, a waterproof protective layer is further arranged on the inner side of the waterproof layer 12, the waterproof protective layer is arranged on one side, close to the underground outer wall 3, of the waterproof layer 12, the waterproof protective layer is arranged after the construction of the waterproof layer 12 is completed, and then the concrete pouring construction of the underground outer wall 3 is carried out.
As shown in fig. 6, the basement construction will be performed by first constructing the bottom plate 1, and leaving the guide wall 2 on the bottom plate 1, and the waterproof layer 12 is required to be disposed on the bottom plate 1, so that the waterproof layer 12 of the bottom plate 1 is already constructed before performing step 1. In order to enable the waterproof layer 12 of the guide wall 2 to be effectively connected to the waterproof layer 12 of the underground outer wall 3. Before step 1, the bottom of the underground outer wall 3 is provided with a guide wall 2 formed by extending the structure of the bottom plate 1 upwards, a waterproof layer 12 is firstly laid on the guide wall 2, the top of the waterproof layer 12 is thrown upwards to form a stubble 12a, and then step 1 is carried out. The stubble throwing 12a is a section of upward extension reserved on the waterproof layer 12 of the guide wall 2, and the extension section is temporarily not adhered to any surface and is in a free state. When the construction of the waterproof layer 12 of the underground outer wall 3, that is, the laying of the waterproof layer 12 on the outer concrete structure 6, is completed, the stubble 12a is thrown from the waterproof layer 12 of the guide wall 2. When the waterproof construction of the underground outer wall 3 is carried out, the waterproof layer 12 of the underground outer wall 3 is connected with the waterproof layer 12 of the guide wall 2, and the tightness and the impermeability are ensured. The outer side of the stubble throwing 12a of the waterproof layer is also provided with a waterproof additional layer at the outer corner of the guide wall 2 for improving the waterproof performance of the joint of the outer corner, and the outer side of the waterproof layer of the guide wall 2 is provided with a waterproof protective layer which is coated by mortar.
As shown in FIG. 8, the fertilizer tank 5 of the whole building is rarely adjacent to other buildings in all, that is, only one section of the fertilizer tank 5 of the building is the narrow fertilizer tank 5, the reverse construction method of the underground outer wall of the narrow fertilizer tank is required to be used, and the fertilizer tank 5 of other parts is the normal fertilizer tank 5 and can be constructed according to the common construction process. The waterproof layer 12 of the general construction method is carried out after the underground outer wall 3 is constructed, but in the reverse construction method of the underground outer wall with the narrow fertilizer groove, the waterproof layer 12 is arranged before the underground outer wall 3 is poured in the step 5. Thus, the waterproof layer 12 is required to be jointed at the joint of the narrow fertilizer groove 5 and the normal fertilizer groove 5. And a waterproof additional layer is also arranged at the joint.
Specifically, as shown in fig. 8, in the case that the outer side of the underground outer wall 3 is provided with the outer concrete structure 6 and the fertilizer tank 5, the waterproof layer 12 laid on the outer concrete structure 6 is thrown outward to form a stubble 12 a; after the step 5 is finished, laying the waterproof layer 12 of the underground outer wall 3 corresponding to the fertilizer groove 5, and connecting the waterproof layer 12 of the underground outer wall 3 with the waterproof layer 12 on the outer concrete structure 6; and covering the seams with waterproofing membrane. The waterproof layer 12 is constructed on the outer concrete structure 6 by firstly arranging the waterproof layer 12 and then adhering one half of the waterproof roll material to the edge of the outer concrete structure 6. After the construction of the underground outer wall 3 is completed, when the waterproof layer 12 is required to be adhered to the underground outer wall 3 at the normal fertilizer groove 5, the waterproof layer 12 is arranged, and then the other half of the waterproof coiled material is adhered to the underground outer wall 3. When the underground outer wall 3 is higher, the underground outer wall 3 is not poured once, and is poured for multiple times.
As shown in fig. 7, the top of the waterproof layer 12 of the underground outer wall 3 provided on the outer concrete structure 6 continues to extend and cover the inside edge of the top of the outer concrete structure 6; the bottom of the waterproof layer 12 of the underground outer wall 3 of the building continuously extends to the top of the outer concrete structure 6, and completely covers the extension section of the waterproof layer 12 of the underground outer wall 3 towards the top of the outer concrete structure 6. This prevents rainwater on the ground from flowing down through the joints of the waterproof layer 12.
As shown in fig. 4 and 6, since the underground outer wall 3 and the outer concrete structure 6 are settled differently, in order to prevent the waterproof layer 12 from being damaged by the dislocation settlement of the underground outer wall 3 and the outer concrete structure 6, the inner side of the bottom of the outer concrete structure 6 is provided with a settlement joint 13, and the bottom of the settlement joint 13 is flush with the guide wall 2.
The waterproof layer needs to be provided to the outside of the waterproof layer 12 on the guide wall 2 and the inside of the waterproof layer 12 of the underground outer wall 3. Additional layers of waterproofing are to be provided at the corners of the waterproofing layer 12. Specifically, it is provided at the external corner of the guide wall 2.
According to fig. 1 and 3, when the underground structure of the building comprises a plurality of stories; the outer concrete structure 6 in the fertilizer tank 5 is completed in multiple steps. One floor height at a time. Specifically, the construction of the outer concrete structure 6 and the construction of the underground outer wall 3 are carried out in sequence in a staggered way, and firstly, the construction from the step 1 to the step 5 is carried out on the nth layer of basement and the corresponding fertilizer tank 5; and then after the step 2 of the N-layer basement is finished, or at any time after the step 2, the construction of the step 1 can be carried out on the N +1 layer of the basement. And then sequentially upward.
As shown in fig. 2 and 5, the first form 10 is disposed at step 1, is removed at step 3, and is located at the outer surface of the underground outer wall 3. A second formwork 11 is provided at step 4 and removed after step 5, in a position at the inner surface of the underground outer wall 3. The first template 10 and the second template 11 do not occur simultaneously and the first template 10 only needs to be moved outward to become the second template 11. And is therefore preferred.
In the step 1, a water stop screw 7 vertical to the underground outer wall 3 is fixed on the keel 9; the water stop screw 7 penetrates through the first template 10, and the first template 10 is fixed on the water stop screw 7; in step 3, the water stop screw 7 extends to the inner side of the underground outer wall 3 through the second formwork 11, and the second formwork 11 is fixed on the water stop screw 7. Therefore, in steps 3 and 4, the first formwork 10 only needs to be moved inward to the position of the second formwork 11 along the water stop screw 7. The connection structure of the template and the water stop screw 7 is mature prior art and is not described in detail.
If the waterproof layer 12 is required to be arranged, the first template 10 is only required to be detached from the water stop screw 7 in the step 3, and then the waterproof layer 12 is constructed. And then the template is mounted in place on the second template 11.
As shown in fig. 5, when the waterproof layer 12 is constructed, the waterproof layer 12 extends a distance onto the water stopping screw 7. And a waterproof structure is arranged between the water stop screw 7 and the underground outer wall 3.
Preferably, a positioning plate or a positioning block is welded and fixed in the middle of the water stop screw 7, and the positioning plate is tightly attached to the outer side of the first template 10.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. The reverse construction method of the underground outer wall of the narrow fertilizer groove is characterized by comprising the following construction steps:
step 1, constructing a keel (9) and a first template (10) in a fertilizer groove (5), arranging a support structure (8) in the fertilizer groove (5) for supporting the keel (9), and fixing the first template (10) on the keel (9);
step 2, concrete pouring is carried out on the fertilizer groove (5), the fertilizer groove (5) is backfilled by pouring concrete into the fertilizer groove (5), the outer side of the concrete is restrained by the side wall of the fertilizer groove (5), and the inner side of the concrete is restrained by the first template (10); forming a fixed outer concrete structure (6) after the concrete in the fertilizer tank (5) is solidified, and then carrying out step 3;
step 3, removing the first template (10) and exposing the inner wall of the outer concrete structure (6);
step 4, setting up a second template (11), and setting the second template (11) at the inner template of the underground outer wall (3) according to the design;
and 5, pouring the underground outer wall (3), wherein concrete pouring operation of the underground outer wall (3) is carried out, the inner side of the concrete of the underground outer wall (3) is restrained by the second template (11), and the outer side of the concrete of the underground outer wall is restrained by the outer concrete structure (6).
2. The reverse construction method of the underground outer wall of the narrow fertilizer groove according to the claim 1, characterized in that the construction of the waterproof layer (12) of the underground outer wall (3) is firstly carried out after the step 3 is completed, and the waterproof layer (12) is laid on the inner wall of the outer concrete structure (6).
3. The reverse construction method of the underground outer wall of the narrow fertilizer groove according to the claim 2, wherein the waterproof layer (12) comprises a plurality of layers, the plurality of waterproof layers (12) are constructed reversely, and the waterproof layers are arranged on the outer concrete structure (6) in the reverse construction sequence of the conventional method for waterproofing the underground outer wall.
4. The reverse construction method of the underground outer wall of the narrow fertilizer groove according to the claim 2, characterized in that before the step 1, the bottom of the underground outer wall (3) is provided with a guide wall (2) formed by extending the structure of the bottom plate (1) upwards, the waterproof layer (12) is firstly laid on the guide wall (2), the top of the waterproof layer (12) is thrown upwards to form a stubble (12 a), and then the step 1 is carried out.
5. The construction method of the narrow fertilizer groove underground outer wall by the reverse construction method according to the claim 4, characterized in that, when the underground outer wall (3) is waterproof, the waterproof layer (12) of the underground outer wall (3) is connected with the waterproof layer (12) of the guide wall (2) and the underground outer wall is waterproof.
6. The reverse construction method of the underground outer wall of the narrow fertilizer groove according to claim 2, wherein the waterproof layer (12) laid on the outer concrete structure (6) is thrown outward (12 a) under the condition that the outer concrete structure (6) and the fertilizer groove (5) are arranged on the outer side of the underground outer wall (3);
after the step 5 is finished, laying a waterproof layer (12) of the underground outer wall (3) corresponding to the fertilizer groove (5), and connecting the waterproof layer (12) of the underground outer wall (3) with the waterproof layer (12) on the outer concrete structure (6); and covering the seams with waterproofing membrane.
7. The reverse construction method of the underground outer wall of the narrow fertilizer groove according to the claim 2, characterized in that the top of the waterproof layer (12) of the underground outer wall (3) arranged on the outer concrete structure (6) is extended continuously and covers the inner side edge of the top of the outer concrete structure (6);
the bottom of the waterproof layer (12) of the underground outer wall (3) of the building continues to extend to the top of the outer concrete structure (6), and completely covers the extension section of the waterproof layer (12) of the underground outer wall (3) to the top of the outer concrete structure (6).
8. The reverse construction method of the underground outer wall of the narrow fertilizer groove as claimed in claim 4, wherein the inner side of the bottom of the outer concrete structure (6) is provided with a settlement joint (13), and the bottom of the settlement joint (13) is flush with the top of the guide wall (2).
9. The reverse construction method of an underground outer wall of a narrow fertilizer groove of claim 1, wherein when the underground structure of the building comprises a plurality of stories; the outer concrete structure (6) in the fertilizer tank (5) is completed for a plurality of times.
10. The reverse construction method of the underground outer wall of the narrow fertilizer groove according to the claim 1, characterized in that a water stop screw (7) vertical to the underground outer wall (3) is fixed on the keel (9) in the step 1; the water stopping screw rod (7) penetrates through the first template (10), and the first template (10) is fixed on the water stopping screw rod (7);
in the step 3, the water stop screw rod (7) passes through a second template (11) and extends to the inner side of the underground outer wall (3), and the second template (11) is fixed on the water stop screw rod (7);
and a waterproof structure is arranged between the water stop screw rod (7) and the underground outer wall (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210777341.4A CN115059290A (en) | 2022-07-04 | 2022-07-04 | Reverse construction method for underground outer wall of narrow fertilizer groove |
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| CN202210777341.4A CN115059290A (en) | 2022-07-04 | 2022-07-04 | Reverse construction method for underground outer wall of narrow fertilizer groove |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862873A (en) * | 2016-04-13 | 2016-08-17 | 北京建工四建工程建设有限公司 | Construction method of underground water prevention and exterior wall structures of narrow space of deep foundation pit |
| CN211547827U (en) * | 2019-09-05 | 2020-09-22 | 上海东方雨虹防水工程有限公司 | Waterproof structure at joint of concrete bottom plates of new and old buildings |
| CN213143862U (en) * | 2020-06-30 | 2021-05-07 | 中国建筑第四工程局有限公司 | Basement outer wall and fertile groove integration construction structure |
| CN112962663A (en) * | 2021-01-07 | 2021-06-15 | 司顺生 | Construction method for narrow outer enclosure space of deep foundation |
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2022
- 2022-07-04 CN CN202210777341.4A patent/CN115059290A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862873A (en) * | 2016-04-13 | 2016-08-17 | 北京建工四建工程建设有限公司 | Construction method of underground water prevention and exterior wall structures of narrow space of deep foundation pit |
| CN211547827U (en) * | 2019-09-05 | 2020-09-22 | 上海东方雨虹防水工程有限公司 | Waterproof structure at joint of concrete bottom plates of new and old buildings |
| CN213143862U (en) * | 2020-06-30 | 2021-05-07 | 中国建筑第四工程局有限公司 | Basement outer wall and fertile groove integration construction structure |
| CN112962663A (en) * | 2021-01-07 | 2021-06-15 | 司顺生 | Construction method for narrow outer enclosure space of deep foundation |
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Application publication date: 20220916 |