CN112962663B - Construction method for narrow outer enclosure space of deep foundation - Google Patents
Construction method for narrow outer enclosure space of deep foundation Download PDFInfo
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- CN112962663B CN112962663B CN202110019404.5A CN202110019404A CN112962663B CN 112962663 B CN112962663 B CN 112962663B CN 202110019404 A CN202110019404 A CN 202110019404A CN 112962663 B CN112962663 B CN 112962663B
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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
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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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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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
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
Abstract
The invention discloses a construction method of a narrow outer enclosure space of a deep foundation, which comprises the steps of driving a slope protection pile, excavating a foundation pit, performing slope protection treatment by utilizing a soil nailing wall process, pouring a concrete foundation cushion layer, and performing cushion layer waterproof treatment; arranging a keel frame, prefabricating an outer wall outer side structure template, arranging the outer wall outer side structure template outside the keel frame, and then pouring lightweight aggregate concrete between the slope protection and the outer wall template; along with the construction of the basement floor, heightening the keel frame layer by riveting the top keel of the keel frame and the ground keel of the upper keel frame, pouring light aggregate concrete, and then waterproofing until the height requirement of the basement is met; and binding reinforcing steel bars along the side surface of the waterproof deep foundation, pouring concrete on the inner side formwork, and then detaching the inner side formwork to make the basement outer wall waterproof. The invention can effectively solve the construction defects that the reserved space between the deep foundation pit slope and the basement wall is too narrow, so that no enough construction space exists, and the reserved sufficient space occupies the basement area.
Description
Technical Field
The invention relates to the field of construction of an outer enclosure space, in particular to a construction method suitable for a narrow outer enclosure space of a deep foundation.
Background
The process adopted when the deep foundation pit is excavated by adopting the slope protection pile due to the narrow excavation working surface in the traditional process is as follows: excavating a foundation pit along the slope protection pile, paving a soil nail wall for slope protection, erecting a basement outer wall construction scaffold along the side slope of the foundation pit, binding ribs, and pouring concrete through two side formworks; removing the outer wall form, and making the basement outer wall waterproof (pasting the outer wall); completing the basement; and backfilling foundation earthwork.
The prior construction process has the following defects: 1. the construction difficulty is increased and the construction cost is increased because the excavation working surface is narrow, so that the construction working surface of the basement outer wall is narrow, even the working surface condition of an outer wall formwork support (no enough space for building a scaffold, a support template, a construction waterproof coating and the like) is not provided, and the use area of the basement is reduced if enough empty space is reserved; 2. in order to ensure the construction working face of the basement outer wall, the excavation earthwork of the foundation trench is increased, and the excavation and backfilling cost is increased; 3. in order to ensure that a construction space usually needs to reserve a 1-1.2 meter base groove space for building a scaffold for the construction of the basement outer wall, the use area of the basement is reduced; the foundation trench earthwork backfill can be performed after the scaffold needs to be dismantled, so that the construction cost is prolonged, and the construction period is prolonged. In order to solve the problems, a construction method for a deep foundation narrow outer enclosure space is designed.
Disclosure of Invention
The invention aims to overcome the existing defects, provides a construction method of a narrow outer enclosure space of a deep foundation, and can effectively solve the construction defects that enough construction space is not available when the reserved space between a deep foundation pit slope and a basement wall is too narrow, and the reserved sufficient space occupies the area of the basement.
In order to achieve the purpose, the invention provides the following technical scheme:
the construction method of the narrow outer space envelope of the deep foundation comprises the following steps:
s1, driving concrete slope protection piles, excavating foundation pits, performing slope protection treatment by utilizing a soil nailing wall process, pouring a concrete foundation cushion, and performing cushion waterproof treatment;
s2, arranging a keel frame, prefabricating an outer wall outer side structure template, arranging the outer wall outer side structure template outside the keel frame, and then pouring lightweight aggregate concrete between the revetment and the outer wall template to replace foundation trench earthwork backfilling;
s3, along with the construction of the basement floor, heightening the keel frame layer by riveting the top keel of the keel frame and the ground keel of the upper keel frame, pouring light aggregate concrete, and then waterproofing until the height requirement of the basement is met;
and S4, binding steel bars along the side face of the waterproof deep foundation, pouring concrete on the inner side formwork, and then detaching the inner side formwork to make the basement outer wall waterproof.
Further, the keel frame is square and consists of a vertical keel, an overhead keel and a ground keel, the overhead keel and the ground keel are respectively riveted at the upper end and the lower end of the vertical keel, the preassembled keel frame is vertically arranged on a concrete cushion at the bottom of the foundation pit and is fixed with the concrete cushion through an anchoring part, the distance of 200 plus one 400mm is reserved between the keel frame and the side slope of the foundation pit, the vertical keel is connected with the concrete slope protection pile through a reinforcing keel, an additional keel is arranged at a turning part when meeting a turning wall or a T-shaped wall, the additional keel is connected with the vertical keel through a connecting part or a rivet, one side of the ground keel is connected with the concrete cushion through the anchoring part, the reinforcing keel is riveted between the keel frame and the concrete slope protection pile, other keel frames are arranged according to the method, the keel frames continuously extend transversely, the adjacent keel frames are connected through the connecting part, after the first layer of keel frames are arranged, the outer wall outer side structure template is installed on the vertical keel on one side, far away from the slope protection pile, of the keel frame through the fastener to form a concrete grouting space, light aggregate concrete is poured between the outer wall outer side structure template and the concrete slope protection pile, and water is prevented outside the outer wall outer side structure template.
Furthermore, a plurality of horizontal keels of the cold-formed thin-walled steel with the U-shaped cross sections are arranged in the keel frame to reinforce the keel frame.
Furthermore, the top keel, the ground keel and the horizontal keel are all made of cold-formed thin-wall section steel with U-shaped cross sections, and the vertical keel and the additional keel are all made of cold-formed thin-wall section steel with C-shaped cross sections.
Furthermore, the distance between the adjacent horizontal keels is 1000-1800mm, one side of the ground keel is connected with the concrete cushion layer through a fastener, the distance between the adjacent fasteners is 400mm, the top keel and the ground keel are riveted through self-tapping screws, the distance between the adjacent self-tapping screws is 400mm, and the distance between the adjacent reinforcing keels is 1000-1800 mm.
Furthermore, the distance between adjacent vertical keels is 300-600mm, additional keels are arranged when the remaining distance is smaller than 300mm, the upper keel and the lower keel are respectively riveted at the upper end and the lower end of the vertical keel by self-tapping screws, and the distance between the adjacent self-tapping screws is 300 mm.
Furthermore, the outer side structure template of the outer wall is a cement diaphragm plate or a galvanized mesh template.
Further, adopt self-tapping screw to connect between outer wall outside structure template and the vertical fossil fragments, adjacent self-tapping screw's interval is 400mm, the vertical setting that staggers of adjacent outer wall outside structure template.
Further, the lightweight aggregate concrete includes recycled lightweight aggregate concrete, foam concrete or polystyrene particle foam concrete.
Further, the fastener includes a steam nail, a self-tapping screw, or a bolt.
Compared with the prior art, the invention has the beneficial effects that: the construction method of the deep foundation narrow outer enclosure space has the following advantages:
1. the basement exterior wall construction method by using the deep foundation narrow outer enclosure space construction method avoids earth backfill and effectively reduces earth excavation and transportation, thereby shortening the construction period and saving the cost.
2. Whole work personnel of work progress all stand in the foundation ditch open space and carry out the installation operation, have avoided the construction of the narrow and small space that traditional construction must be between ligature reinforcing bar and foundation ditch broken face, therefore the construction operation is simple and convenient nimble, has improved efficiency and construction safety nature.
3. Because a scaffold is not required to be built, the reserved space of the foundation trench is reduced by 4 times (from 1.2 meters to 0.3 meter), and therefore the use area of the constructed basement can be increased.
Drawings
Figure 1 is a schematic view of a keel frame construction of the invention;
figure 2 is a left side view of the right half keel frame structure of the invention;
figure 3 is a schematic view of the keel frame structure at the corner of the invention.
In the figure: 1 vertical keel, 2 day fossil fragments, 3 ground fossil fragments, 4 reinforcement fossil fragments, 5 horizontal keel, 6 outer wall outside structure templates, 7 concrete slope protection stake, 8 additional fossil fragments.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions:
the first embodiment is as follows:
the construction method of the narrow outer enclosure space of the deep foundation comprises the following steps:
s1, driving a concrete slope protection pile 7, excavating a foundation pit, performing slope protection treatment by utilizing a soil nailing wall process, pouring a concrete foundation cushion, and performing cushion waterproof treatment;
s2, arranging a keel frame, prefabricating a cement template, wherein the keel frame is square and consists of a vertical keel 1, a ceiling keel 2 and a ground keel 3, the ceiling keel 2 and the ground keel 3 are respectively riveted at the upper end and the lower end of the vertical keel 1, the preassembled keel frame is vertically arranged on a concrete cushion at the bottom of a foundation pit and is fixed with the concrete cushion through an anchoring part, a distance of 250mm is reserved between the keel frame and a side slope of the foundation pit, the vertical keel 1 is connected with a concrete slope protection pile 7 through a reinforcing keel 4, an additional keel 8 is arranged at a turning part when meeting a corner wall or a T-shaped wall, the additional keel 8 is connected with the vertical keel 1 through a connecting part or a rivet, one side of the ground keel 3 is connected with the concrete cushion through the anchoring part, the reinforcing keel 4 is riveted between the keel frame and the concrete slope protection pile 7, other keel frames are arranged according to the method, so that the keel frames continuously extend transversely, and adjacent keel frames are connected through the connecting part, after the first layer of keel frame is installed, a cement template is installed on the vertical keel 1 at one side of the keel frame, which is far away from the slope protection pile, through a steam nail to form a concrete grouting space, recycled lightweight aggregate concrete is poured between the cement template and the concrete slope protection pile 7, and the outer side of the cement template is waterproof;
s3, along with the construction of the basement floor, heightening the keel frame layer by riveting the skyndrome 2 of the keel frame and the ground keel 3 of the upper keel frame, pouring light aggregate concrete, and then waterproofing until the height requirement of the basement is met;
and S4, binding steel bars along the side face of the waterproof deep foundation, pouring concrete on the inner side formwork, and then detaching the inner side formwork to make the basement outer wall waterproof.
Wherein, a plurality of horizontal keels 5 of cold-formed thin-walled steel with U-shaped cross sections are arranged in the keel frame to reinforce the keel frame; the top keel 2, the ground keel 3 and the horizontal keel 5 are all U-shaped section cold-formed thin-wall section steel, and the vertical keel 1 and the additional keel 8 are all C-shaped section cold-formed thin-wall section steel.
The interval between adjacent horizontal keel 5 is 1200mm, and ground fossil fragments 3 one side is connected with the concrete cushion through the vapour nail, and the interval of adjacent vapour nail is 400mm, adopts self-tapping screw riveting between day fossil fragments 2 and the ground fossil fragments 3, and the interval of adjacent self-tapping screw is 400mm, and adjacent 4 intervals of consolidating fossil fragments are 1200 mm.
The distance between the adjacent vertical keels 1 is 400mm, when the remaining distance is smaller than 300mm, the additional keels 8 are arranged, the ceiling keel 2 and the ground keel 3 are respectively riveted at the upper end and the lower end of the vertical keel 1 by self-tapping screws, and the distance between the adjacent self-tapping screws is 300 mm; the cement templates are connected with the vertical keels 1 through self-tapping screws, the distance between every two adjacent self-tapping screws is 400mm, and the adjacent cement templates are vertically staggered.
Example two:
the construction method of the enclosure space outside the narrow foundation comprises the following steps:
s1, driving a concrete slope protection pile 7, excavating a foundation pit, performing slope protection treatment by utilizing a soil nailing wall process, pouring a concrete foundation cushion, and performing cushion waterproof treatment;
s2, arranging a keel frame, prefabricating a galvanized mesh template, wherein the keel frame is square and consists of a vertical keel 1, a ceiling keel 2 and a ground keel 3, the ceiling keel 2 and the ground keel 3 are respectively riveted at the upper end and the lower end of the vertical keel 1, the prefabricated keel frame is vertically arranged on a concrete cushion layer at the bottom of a foundation pit and is fixed with the concrete cushion layer through an anchoring part, a distance of 300mm is reserved between the keel frame and a side slope of the foundation pit, the vertical keel 1 is connected with a concrete slope protection pile 7 through a reinforcing keel 4, an additional keel 8 is arranged at a turning part when meeting a corner wall or a T-shaped wall, the additional keel 8 is connected with the vertical keel 1 through a connecting part or a rivet, one side of the ground keel 3 is connected with the concrete cushion layer through the anchoring part, the reinforcing keel 4 is riveted between the keel frame and the concrete slope protection pile 7, installing other keel frames according to ensure that the keel frame continuously and transversely extends, the adjacent keel frames are connected by adopting a connecting piece, after the first layer of keel frame is installed, a galvanized mesh template is installed on the vertical keel 1 at one side of the keel frame, which is far away from the slope protection pile, through self-tapping screws to form a concrete grouting space, light aggregate concrete is poured between the galvanized mesh template and the concrete slope protection pile 7, and the outer side of the galvanized mesh template is waterproof;
s3, along with the construction of the basement floor, heightening the keel frame layer by riveting the skyndrome 2 of the keel frame and the ground keel 3 of the upper keel frame, pouring foam concrete, and then waterproofing until the height requirement of the basement is met;
and S4, binding steel bars along the side face of the waterproof deep foundation, pouring concrete on the inner side formwork, and then detaching the inner side formwork to make the basement outer wall waterproof.
Wherein, a plurality of horizontal keels 5 of cold-formed thin-walled steel with U-shaped cross sections are arranged in the keel frame to reinforce the keel frame; the upper keel 2, the ground keel 3 and the horizontal keel 5 are all made of U-shaped section cold-formed thin-wall section steel, and the vertical keel 1 and the additional keel 8 are all made of C-shaped section cold-formed thin-wall section steel; the interval between adjacent horizontal keel 5 is 1500mm, and 3 one sides of ground fossil fragments are connected with the concrete cushion through the vapour nail, and the interval of adjacent vapour nail is 400mm, adopts self-tapping screw riveting between day fossil fragments 2 and the ground fossil fragments 3, and the interval of adjacent self-tapping screw is 400mm, and 4 intervals of adjacent reinforcement fossil fragments are 1500 mm.
The distance between every two adjacent vertical keels 1 is 300mm, when the remaining distance is smaller than 300mm, additional keels 8 are arranged, the ceiling keel 2 and the ground keel 3 are respectively riveted at the upper end and the lower end of each vertical keel 1 through self-tapping screws, and the distance between every two adjacent self-tapping screws is 300 mm; the galvanized net template is connected with the vertical keel 1 through self-tapping screws, the distance between every two adjacent self-tapping screws is 400mm, and the adjacent galvanized net templates are vertically staggered.
Example three:
the construction method of the enclosure space outside the narrow foundation comprises the following steps:
s1, driving a concrete slope protection pile 7, excavating a foundation pit, performing slope protection treatment by utilizing a soil nailing wall process, pouring a concrete foundation cushion, and performing cushion waterproof treatment;
s2, arranging a keel frame, prefabricating a cement template, wherein the keel frame is square and consists of a vertical keel 1, a ceiling keel 2 and a ground keel 3, the ceiling keel 2 and the ground keel 3 are respectively riveted at the upper end and the lower end of the vertical keel 1, the preassembled keel frame is vertically arranged on a concrete cushion at the bottom of a foundation pit and is fixed with the concrete cushion through an anchoring part, a distance of 350mm is reserved between the keel frame and a side slope of the foundation pit, the vertical keel 1 is connected with a concrete slope protection pile 7 through a reinforcing keel 4, an additional keel 8 is arranged at a turning part when meeting a corner wall or a T-shaped wall, the additional keel 8 is connected with the vertical keel 1 through a connecting part or a rivet, one side of the ground keel 3 is connected with the concrete cushion through the anchoring part, the reinforcing keel 4 is riveted between the keel frame and the concrete slope protection pile 7, other keel frames are arranged according to the method, so that the keel frames continuously extend transversely, and adjacent keel frames are connected through the connecting part, after the first layer of keel frame is installed, a cement template is installed on the vertical keel 1 at one side of the keel frame, which is far away from the slope protection pile, through bolts to form a concrete grouting space, polystyrene particle foam concrete is poured between the cement template and the concrete slope protection pile 7, and the outer side of the cement template is waterproof;
s3, along with the construction of the basement floor, heightening the keel frame layer by riveting the skyndrome 2 of the keel frame and the ground keel 3 of the upper keel frame, pouring light aggregate concrete, and then waterproofing until the height requirement of the basement is met;
and S4, binding steel bars along the side face of the waterproof deep foundation, pouring concrete on the inner side formwork, and then detaching the inner side formwork to make the basement outer wall waterproof.
Wherein, a plurality of horizontal keels 5 of cold-formed thin-walled steel with U-shaped cross sections are arranged in the keel frame to reinforce the keel frame; the upper keel 2, the ground keel 3 and the horizontal keel 5 are all made of U-shaped section cold-formed thin-wall section steel, and the vertical keel 1 and the additional keel 8 are all made of C-shaped section cold-formed thin-wall section steel; the interval between adjacent horizontal keel 5 is 1600mm, and ground fossil fragments 3 one side is connected with the concrete cushion through the vapour nail, and the interval of adjacent vapour nail is 400mm, adopts self-tapping screw riveting between day fossil fragments 2 and the ground fossil fragments 3, and the interval of adjacent self-tapping screw is 400mm, and adjacent 4 intervals of consolidating fossil fragments are 1600 mm.
The distance between the adjacent vertical keels 1 is 500mm, when the remaining distance is less than 300mm, the additional keels 8 are arranged, the ceiling keel 2 and the ground keel 3 are respectively riveted at the upper end and the lower end of the vertical keel 1 by self-tapping screws, and the distance between the adjacent self-tapping screws is 300 mm; the cement templates are connected with the vertical keels 1 through self-tapping screws, the distance between every two adjacent self-tapping screws is 400mm, and the adjacent cement templates are vertically staggered.
The soil nailing wall process is an in-situ soil body reinforcement technology. The slope of the foundation pit is reinforced by soil nails made of steel bars, a steel bar mesh is laid on the surface of the slope, and a layer of concrete surface layer is sprayed on the surface of the slope, so that the slope is reinforced and supported. The construction is a complex formed by firmly bonding a reinforced rod piece (namely a soil nail or an anchor rod) arranged in a slope body with the surrounding soil body, and a supporting structure similar to a gravity retaining wall formed by surface layers. The soil nailing wall process is a common process in construction, and is not explained in more detail here.
The structure template is a temporary supporting structure, is manufactured according to design requirements, enables a concrete structure and a member to be formed according to specified positions and geometric dimensions, keeps the correct position, bears the self weight of the building template and external loads acting on the building template, and achieves the purposes of template engineering, so that the quality and the construction safety of a concrete project are guaranteed, the construction progress is accelerated, and the engineering cost is reduced.
The lightweight aggregate concrete is a concrete using lightweight aggregate, and has an apparent density of not more than 1950kg/m 3 . The lightweight aggregate is an aggregate used for the purpose of reducing the mass of concrete and improving the thermal effect, and has a lower apparent density than a conventional aggregate. The composite material has the characteristics of light weight, high strength, good heat preservation, fire resistance, good shock resistance and the like, has good deformation performance and lower elastic modulus, and comprises recycled lightweight aggregate concrete, foam concrete or polystyrene particle foam concrete and the like.
Fasteners are a generic term for a class of mechanical parts used to fasten two or more parts (or components) together as a unit.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The construction method of the deep foundation narrow outer enclosure space is characterized by comprising the following steps:
s1, driving concrete slope protection piles, excavating foundation pits, performing slope protection treatment by utilizing a soil nailing wall process, pouring a concrete foundation cushion, and performing cushion waterproof treatment;
s2, arranging a keel frame, prefabricating a cement template, arranging an outer wall outer side structural template outside the keel frame, and then pouring lightweight aggregate concrete between the revetment and the outer wall template to replace foundation trench earthwork for backfilling;
wherein, the keel frame is square and consists of a vertical keel, a ceiling keel and a ground keel, the ceiling keel and the ground keel are respectively riveted at the upper end and the lower end of the vertical keel, the preassembled keel frame is vertically arranged on a concrete cushion at the bottom of the foundation pit and is fixed with the concrete cushion through an anchoring part, the distance of 200-, installing an outer wall outer side structural template on a vertical keel at one side of the keel frame far away from the slope protection pile through a fastener to form a concrete grouting space, pouring light aggregate concrete between the outer wall outer side structural template and the concrete slope protection pile, and performing water prevention on the outer side of the cement template;
s3, along with the construction of the basement floor, heightening the keel frame layer by riveting the top keel of the keel frame and the ground keel of the upper keel frame, pouring light aggregate concrete, and then waterproofing until the height requirement of the basement is met;
and S4, binding steel bars along the side face of the waterproof deep foundation, pouring concrete on the inner side formwork, and then removing the inner side formwork to waterproof the outer wall of the basement.
2. The construction method of a deep foundation narrow outer enclosure according to claim 1, wherein a plurality of horizontal keels of cold-formed thin-walled steel with a U-shaped cross section are provided in the keel frame.
3. The construction method of the narrow outer enclosure space of the deep foundation according to claim 2, wherein the top keel, the ground keel and the horizontal keel are all cold-formed thin-walled steel sections with U-shaped cross sections, and the vertical keel and the additional keel are all cold-formed thin-walled steel sections with C-shaped cross sections.
4. The construction method of the narrow outer enclosure space of the deep foundation as claimed in claim 3, wherein the distance between the adjacent horizontal keels is 1800mm plus 1000 mm, one side of the ground keel is connected with the concrete cushion layer through the fastening piece, the distance between the adjacent fastening pieces is 400mm, the top keel and the ground keel are riveted by the self-tapping screws, the distance between the adjacent self-tapping screws is 400mm, and the distance between the adjacent reinforcing keels is 1800mm plus 1000 mm.
5. The construction method of the narrow outer enclosure of the deep foundation as claimed in claim 4, wherein the distance between the adjacent vertical keels is 300-600mm, when the remaining distance is less than 300mm, the additional keels are installed, the top keel and the ground keel are respectively riveted to the upper and lower ends of the vertical keel by self-tapping screws, and the distance between the adjacent self-tapping screws is 300 mm.
6. The construction method of the deep foundation narrow outer enclosure space according to claim 1, wherein the outer wall outer side structural formworks are connected with the vertical keels by fasteners, the distance between the adjacent fasteners is 400mm, and the adjacent outer wall outer side structural formworks are vertically staggered.
7. The construction method of a deep foundation narrow outer enclosure according to claim 1, wherein the lightweight aggregate concrete includes recycled lightweight aggregate concrete, foamed concrete or polystyrene particle foamed concrete.
8. The method of claim 6, wherein the fastening member comprises a steam nail, a tapping screw or a bolt.
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| CN113653322A (en) * | 2021-07-19 | 2021-11-16 | 北京天恒建设集团有限公司 | Construction method of self-supporting system in single-side formwork wall |
| CN114232808A (en) * | 2021-12-30 | 2022-03-25 | 洛阳北玻硅巢新材料有限公司 | Manufacturing and mounting method of combined wall for prefabricated building |
| CN114086553B (en) * | 2022-01-24 | 2022-04-19 | 中铁十八局集团有限公司 | Deep basal pit module builds side wall and uses anchoring device with concrete vibration design |
| CN115059290A (en) * | 2022-07-04 | 2022-09-16 | 中国建筑第二工程局有限公司 | Reverse construction method for underground outer wall of narrow fertilizer groove |
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| KR101255047B1 (en) * | 2011-05-09 | 2013-04-16 | 주식회사 한빛구조엔지니어링 | The assembly formwork unit and the method of supporting soil pressure in rock section for topdown |
| CN105862873B (en) * | 2016-04-13 | 2017-11-10 | 北京建工四建工程建设有限公司 | Deep basal pit narrow space underground waterproof and external wall structure construction method |
| CN206233584U (en) * | 2016-11-15 | 2017-06-09 | 中国建筑第八工程局有限公司 | Narrow zone exterior wall formwork erecting structure |
| CN206385801U (en) * | 2017-01-05 | 2017-08-08 | 中铁建设集团有限公司 | Outer wall of basement single side formwork exterior sheathing |
| CN207905350U (en) * | 2018-01-31 | 2018-09-25 | 中国建筑第二工程局有限公司 | A kind of wall form ruggedized construction |
| CN111519660A (en) * | 2020-05-06 | 2020-08-11 | 中铁建设集团有限公司 | Construction method for high-strength cement composite board template system on outer side of outer wall of deep foundation pit |
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