阅读说明：本技术 一种深基坑外墙外侧高强水泥复合板模板体系施工工法 (Construction method for high-strength cement composite board template system on outer side of outer wall of deep foundation pit ) 是由 王轶 黎佺炜 闫志皓 余金健 潘黎臣 于 2020-05-06 设计创作，主要内容包括：本发明公开了一种深基坑外墙外侧高强水泥复合板模板体系施工工法,包括深化设计、测量放线、安装镀锌钢板、安装水平向型钢、安装主龙骨型钢、安装次龙骨型钢、安装多层模板、安装高强水泥复合板。本发明的有益效果是：所有材料都成品材料,不需要现场加工,加快了现场施工进度；所需材料类别少,施工工种和人员大大减少,施工工期短,极大的降低了成本；不受温度、湿度等气候条件的影响,特别是冬季作业对施工带来的不利因素；极大的减少了材料的现场加工,避免了因加工材料而出现的浪费,由此可见采用高强水泥复合板模板体系可以大大的节约材料,符合当前所提倡的绿色施工理念。(The invention discloses a construction method of a template system of a high-strength cement composite board on the outer side of an outer wall of a deep foundation pit. The invention has the beneficial effects that: all the materials are finished, so that the field processing is not needed, and the field construction progress is accelerated; the required material category is less, the construction work and personnel are greatly reduced, the construction period is short, and the cost is greatly reduced; the method is not influenced by climatic conditions such as temperature, humidity and the like, and particularly brings adverse factors to construction in winter; the field processing of the material is greatly reduced, the waste caused by processing the material is avoided, and therefore the material can be greatly saved by adopting a high-strength cement composite board template system, and the green construction concept advocated at present is met.)

1. A construction method for a deep foundation pit outer wall outside high-strength cement composite board template system is characterized by comprising the following steps of: the method comprises the following steps:

the method comprises the following steps of firstly, deepening design, calculating an external wall template system according to a construction drawing before construction, and determining a template material; determining an external wall template supporting mode according to the width of the on-site fertilizer groove, determining the position of an external wall template according to an external side line of the external wall, drawing a node construction diagram of the external wall template, and compiling a construction scheme;

measuring and paying off, namely determining the position of an outer side template according to the position of the outer wall of the basement structure, fixing reinforcing steel bars on the slope protection piles at intervals of 1500mm in the transverse direction and the vertical direction, marking the positions of the movable surfaces on the reinforcing steel bars by using red paint, and pulling through the movable surfaces by using small white lines;

mounting a galvanized steel plate, fixing the galvanized steel plate on the slope protection pile by using an expansion bolt, and calculating and determining the vertical and horizontal intervals of the steel plate according to the template support system;

step four, mounting horizontal section steel, and fully welding and fixing the two sides of the horizontal support section steel on the galvanized steel plate;

step five, installing main keel section steel, and fixing the double faces of the main keel on the horizontal support section steel in a full-welding manner;

step six, mounting secondary keel section steel, and fixing the secondary keel by double-sided full welding with the main keel;

installing a plurality of layers of templates, and fixing the multilayer plates on the secondary keel by using self-tapping screws;

and step eight, mounting the high-strength cement composite board, and fixing the high-strength cement composite board and the multilayer board by using a self-tapping screw.

2. The construction method of the high-strength cement composite board template system on the outer side of the outer wall of the deep foundation pit as claimed in claim 1, is characterized in that: in the first step, the drawn external wall template node construction drawing comprises arrangement of the buried plate positions, the main keels and the secondary keels, and the constructed construction scheme is marked with signs of construction units, supervision units and design units.

3. The construction method of the high-strength cement composite board template system on the outer side of the outer wall of the deep foundation pit as claimed in claim 1, is characterized in that: in the third step, the size of the galvanized steel plate is 8mm multiplied by 200mm, the vertical middle distance is 450mm, and the horizontal middle distance is 1500 mm.

4. The construction method of the high-strength cement composite board template system on the outer side of the outer wall of the deep foundation pit as claimed in claim 1, is characterized in that: in the fourth step, the selected horizontal supporting section steel is 12# channel steel with the length of 132mm, the vertical middle distance is 450mm, and the horizontal middle distance is 1500 mm.

5. The construction method of the high-strength cement composite board template system on the outer side of the outer wall of the deep foundation pit as claimed in claim 1, is characterized in that: in the fifth step, the selected main keel section steel is 12# channel steel, the vertical middle distance is 450mm, the main keel is horizontally arranged in the through length direction, and the main keel is connected with the main keel in a welding mode.

6. The construction method of the high-strength cement composite board template system on the outer side of the outer wall of the deep foundation pit as claimed in claim 1, is characterized in that: in the sixth step, the selected secondary joist section steel is 8# channel steel, the transverse middle distance is 300mm, the secondary joist is vertically arranged in a through length, and the secondary joist is connected with the secondary joist in a welding mode.

7. The construction method of the high-strength cement composite board template system on the outer side of the outer wall of the deep foundation pit as claimed in claim 1, is characterized in that: in the seventh step, the selected multilayer board is a multilayer wood-plastic board with the thickness of 18 mm.

8. The construction method of the high-strength cement composite board template system on the outer side of the outer wall of the deep foundation pit as claimed in claim 1, is characterized in that: and in the step eight, the selected high-strength cement composite board is used as the waterproof base layer of the coiled material, the thickness of the high-strength cement composite board is 12mm, and the high-strength cement composite board is tight in abutted seam.

Technical Field

The invention relates to construction of a high-strength cement composite board template system, in particular to a construction method of a high-strength cement composite board template system on the outer side of an outer wall of a deep foundation pit, and belongs to the technical field of construction of cement composite board template systems of building foundation pits.

Background

Along with the rapid development of urban high-rise and super high-rise buildings, the depth of a building foundation pit is also increasingly deep and is influenced by the surrounding environment, a fertilizer groove between an underground structure outer wall and a foundation pit slope protection is too narrow and small, and an outer wall structure and a waterproof layer construction condition are not provided.

For the existing construction methods, on the one hand, the field processing links are more, the construction quality is not easy to control, the common quality defects such as flatness, verticality deviation, cracks, slab staggering, hollowing and the like are easy to occur, on the other hand, the required materials are more, the construction types and personnel are greatly increased, the construction period is long, the construction cost is greatly increased, on the other hand, the construction is easy to be affected by weather conditions such as temperature and humidity, particularly, adverse factors brought to the construction by winter operation are avoided, on the other hand, materials such as bricks, reinforcing steel bars, templates, mortar and concrete used in the traditional brick moulding bed are easy to cause waste in the construction process, the ground ash, broken bricks, waste reinforcing steel bars and waste templates can only be treated as garbage, water waste is easy to generate during masonry and plastering maintenance, and dust is easy to generate during mortar stirring.

Disclosure of Invention

The invention aims to solve the problems and provide a construction method for a high-strength cement composite board template system outside the outer wall of a deep foundation pit.

The invention realizes the purpose through the following technical scheme: a construction method for a high-strength cement composite board template system on the outer side of an outer wall of a deep foundation pit comprises the following steps:

the method comprises the following steps of firstly, deepening design, calculating an external wall template system according to a construction drawing before construction, and determining a template material; determining an external wall template supporting mode according to the width of the on-site fertilizer groove, determining the position of an external wall template according to an external side line of the external wall, drawing a node construction diagram of the external wall template, and compiling a construction scheme;

measuring and paying off, namely determining the position of an outer side template according to the position of the outer wall of the basement structure, fixing reinforcing steel bars on the slope protection piles at intervals of 1500mm in the transverse direction and the vertical direction, marking the positions of the movable surfaces on the reinforcing steel bars by using red paint, and pulling through the movable surfaces by using small white lines;

mounting a galvanized steel plate, fixing the galvanized steel plate on the slope protection pile by using an expansion bolt, and calculating and determining the vertical and horizontal intervals of the steel plate according to the template support system;

step four, mounting horizontal section steel, and fully welding and fixing the two sides of the horizontal support section steel on the galvanized steel plate;

step five, installing main keel section steel, and fixing the double faces of the main keel on the horizontal support section steel in a full-welding manner;

step six, mounting secondary keel section steel, and fixing the secondary keel by double-sided full welding with the main keel;

installing a plurality of layers of templates, and fixing the multilayer plates on the secondary keel by using self-tapping screws;

and step eight, mounting the high-strength cement composite board, and fixing the high-strength cement composite board and the multilayer board by using a self-tapping screw.

As a still further scheme of the invention: in the first step, the drawn external wall template node construction drawing comprises arrangement of the buried plate positions, the main keels and the secondary keels, and the constructed construction scheme is marked with signs of construction units, supervision units and design units.

As a still further scheme of the invention: in the third step, the size of the galvanized steel plate is 8mm multiplied by 200mm, the vertical middle distance is 450mm, and the horizontal middle distance is 1500 mm.

As a still further scheme of the invention: in the fourth step, the selected horizontal supporting section steel is 12# channel steel with the length of 132mm, the vertical middle distance is 450mm, and the horizontal middle distance is 1500 mm.

As a still further scheme of the invention: in the fifth step, the selected main keel section steel is 12# channel steel, the vertical middle distance is 450mm, the main keel is horizontally arranged in the through length direction, and the main keel is connected with the main keel in a welding mode.

As a still further scheme of the invention: in the sixth step, the selected secondary joist section steel is 8# channel steel, the transverse middle distance is 300mm, the secondary joist is vertically arranged in a through length, and the secondary joist is connected with the secondary joist in a welding mode.

As a still further scheme of the invention: in the seventh step, the selected multilayer board is a multilayer wood-plastic board with the thickness of 18 mm.

As a still further scheme of the invention: and in the step eight, the selected high-strength cement composite board is used as the waterproof base layer of the coiled material, the thickness of the high-strength cement composite board is 12mm, and the high-strength cement composite board is tight in abutted seam.

The invention has the beneficial effects that: the construction method of the high-strength cement composite board template system on the outer side of the outer wall of the deep foundation pit is reasonable in design:

1. the construction quality is well controlled, materials such as embedded plates, profiles, panels and the like required by the high-strength cement composite plate template system are all made of finished materials, the field processing links are reduced, the construction quality is better controlled, the common quality problems such as flatness, verticality deviation, cracks, staggered platforms, hollowing and the like easily occurring in comparison with the traditional brick moulding bed are greatly reduced, and the overall rigidity, flatness and verticality of the system are also obviously improved in comparison with the traditional method;

2. the construction speed is high, the construction process of the high-strength cement composite board template system is simple, all materials are finished, the on-site processing is not needed, and the on-site construction progress is accelerated;

3. the construction cost is low, compared with a brick bed mould template system, the high-strength cement composite plate template system has the advantages that the required material types are few, the construction work types and personnel are greatly reduced, the construction period is short, and the cost is greatly reduced;

4. the construction is flexible, and the high-strength cement composite board template system is not influenced by climatic conditions such as temperature, humidity and the like compared with a brick bed mould template system, and particularly adverse factors brought to the construction by winter operation are avoided;

5. the high-strength cement composite board template system has the advantages that the energy is saved, the environment is protected, the field processing of materials is greatly reduced, the waste caused by processing the materials is avoided, the materials can be greatly saved by adopting the high-strength cement composite board template system, and the current advocated green construction concept is met.

Drawings

FIG. 1 is a schematic view of the construction process of the present invention.

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, a construction method for a high-strength cement composite board template system on the outer side of an outer wall of a deep foundation pit includes the following steps:

the method comprises the following steps of firstly, deepening design, calculating an external wall template system according to a construction drawing before construction, and determining a template material; determining an external wall template supporting mode according to the width of the on-site fertilizer groove, determining the position of an external wall template according to an external side line of the external wall, drawing a node construction diagram of the external wall template, and compiling a construction scheme;

measuring and paying off, namely determining the position of an outer side template according to the position of the outer wall of the basement structure, fixing reinforcing steel bars on the slope protection piles at intervals of 1500mm in the transverse direction and the vertical direction, marking the positions of the movable surfaces on the reinforcing steel bars by using red paint, and pulling through the movable surfaces by using small white lines;

mounting a galvanized steel plate, fixing the galvanized steel plate on the slope protection pile by using an expansion bolt, and calculating and determining the vertical and horizontal intervals of the steel plate according to the template support system;

step four, mounting horizontal section steel, and fully welding and fixing the two sides of the horizontal support section steel on the galvanized steel plate;

step five, installing main keel section steel, and fixing the double faces of the main keel on the horizontal support section steel in a full-welding manner;

step six, mounting secondary keel section steel, and fixing the secondary keel by double-sided full welding with the main keel;

installing a plurality of layers of templates, and fixing the multilayer plates on the secondary keel by using self-tapping screws;

and step eight, mounting the high-strength cement composite board, and fixing the high-strength cement composite board and the multilayer board by using a self-tapping screw.

Further, in the embodiment of the present invention, in the first step, the drawn external formwork node structure drawing includes arrangement of the slab burying position, the main keel and the secondary keel, and the constructed construction scheme indicates a construction unit, a supervision unit and a design unit.

Further, in the embodiment of the present invention, in the third step, the size of the galvanized steel plate is 8mm × 200 × 200mm, the vertical middle distance is 450mm, and the horizontal middle distance is 1500 mm.

Further, in the fourth step of the present invention, the selected horizontal supporting section steel is a 12# channel steel with a length of 132mm, the vertical middle distance is 450mm, and the horizontal middle distance is 1500 mm.

Further, in the fifth step of the invention, the selected main keel section steel is 12# channel steel, the vertical center distance is 450mm, the main keels are horizontally arranged in the through length direction, and the main keels are connected with each other by welding.

Further, in the sixth step of the invention, the steel section of the selected secondary keel is a 8# channel steel, the transverse middle distance is 300mm, the secondary keel is vertically arranged in a through length manner, and the secondary keel are connected by welding.

Further, in the seventh embodiment of the present invention, the selected multilayer board is a multilayer wood-plastic board with a thickness of 18 mm.

Further, in the embodiment of the invention, in the step eight, the selected high-strength cement composite board is used as the waterproof base layer of the coiled material, the thickness of the high-strength cement composite board is 12mm, and the high-strength cement composite board has tight abutted seams.

The working principle is as follows: when the construction method of the high-strength cement composite board template system on the outer side of the outer wall of the deep foundation pit is used, the high-strength cement composite board template system mainly uses the buried plate and the profile steel as supports, and uses the multilayer board and the high-strength cement composite board as templates, wherein the buried plate is fixed on a slope protection structure, the horizontal profile steel for adjusting the distance is vertically welded on the buried plate, the main keel is fixed on the horizontal profile steel, the secondary keel is installed on the main keel, the multilayer board is fixed on the secondary keel, the material of the panel is determined according to the requirements of waterproof materials and the construction process on a base layer, and the construction method is coiled water-proof, so that a layer of the high-strength cement composite board is installed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.