阅读说明：本技术 一种适用于深基坑桩身混凝土磨光粘接防水的处理方法 (Method suitable for polishing, bonding and waterproofing deep foundation pit pile body concrete ) 是由 杨光 马小戈 王义全 刘慧� 李哲 韩伟顺 谭思琪 闫磊 徐跃军 李军 张怀海 于 2019-10-16 设计创作，主要内容包括：本发明公开了一种适用于深基坑桩身混凝土磨光粘接防水的处理方法,包括：桩身剔凿前,采用无齿锯在桩身设计标高位置沿桩身进行切割,切割深度为钢筋保护层厚度,不得切割钢筋。采用风镐进行桩身混凝土剔凿,剔凿至距离桩身设计标高上5公分,停止风镐施工,改为人工剔凿桩身混凝土至设计标高。采用打磨机,对桩身外阳角及桩芯部分进行打磨,直至混凝土表面平整。桩身表面采用清水冲洗,直至表面无灰尘等颗粒物。采用水泥砂浆平整地下桩身的邻近基层,修复邻近基层的凸凹不平处,地下桩身与邻近基层交接处做圆弧阴角便于与防水卷材粘贴。地下桩身的邻近基层与防水卷材进行粘贴,实现防水处理。确保地下桩身防水卷材的完整性,提高了桩身防水效果。(The invention discloses a method for polishing, bonding and waterproofing concrete suitable for a deep foundation pit pile body, which comprises the following steps: before pile body chiseling, a toothless saw is adopted to cut along the pile body at the designed elevation position of the pile body, the cutting depth is the thickness of the steel bar protective layer, and steel bars cannot be cut. And (4) adopting an air pick to pick and chisel the pile body concrete until the distance between the pile body and the designed elevation is 5 cm, stopping the construction of the air pick, and manually picking and chiseling the pile body concrete until the designed elevation is reached. And (4) polishing the external corner and the pile core part of the pile body by using a polishing machine until the surface of the concrete is flat. The surface of the pile body is washed by clear water until no particles such as dust and the like exist on the surface. Cement mortar is adopted to level the adjacent base layer of the underground pile body, the uneven position of the adjacent base layer is repaired, and the joint of the underground pile body and the adjacent base layer is provided with a circular arc internal corner to facilitate the adhesion with the waterproof coiled material. The adjacent base layer of the underground pile body is pasted with the waterproof coiled material, so that waterproof treatment is realized. The integrity of the waterproof coiled material of the underground pile body is ensured, and the waterproof effect of the pile body is improved.)

1. A concrete polishing, bonding and waterproofing treatment method suitable for a deep foundation pit pile body is characterized by comprising the following steps:

the method comprises the following steps: before picking out the pile body, cutting along the pile body at the designed elevation position of the pile body by a toothless saw, wherein the cutting depth is the thickness of the protective layer of the reinforcing steel bar, and the reinforcing steel bar cannot be cut;

step two: adopting an air pick to pick and chisel the pile body concrete until the distance between the pile body and the designed elevation is 5 cm, stopping the construction of the air pick, and manually picking and chiseling the pile body concrete until the designed elevation is reached;

step three: polishing the external corner and the pile core part of the pile body by using a polisher until the surface of the concrete is flat;

step four: the surface of the pile body is washed by clear water until no particles such as dust and the like exist on the surface;

step five: cement mortar is adopted to level the adjacent base layer of the underground pile body, the uneven part of the adjacent base layer is repaired, and the joint of the underground pile body and the adjacent base layer is provided with an arc internal corner for being conveniently pasted with a waterproof coiled material;

step six: the adjacent base layer of the underground pile body is pasted with the waterproof coiled material, so that waterproof treatment is realized.

Technical Field

The invention relates to the field of concrete waterproofing, in particular to a method for polishing, bonding and waterproofing concrete suitable for a deep foundation pit pile body.

Background

With the rapid development of the building industry, high-rise (super high-rise) residences, businesses and large underground garages are more and more, so that underground waterproof engineering becomes a problem to be solved by buildings more and more, and particularly, the treatment of pile bodies in the underground engineering is particularly important. The waterproof basic layer treatment of the underground pile body in the existing building is a part which is often overlooked relatively easily and is also a link which is easy to operate roughly, so that the method for preventing the water seepage of the pile body part by adopting an effective method has great popularization significance.

Traditional pile body base course is handled and is only after scraping the chisel with pile body concrete, carries out waterproofing after simple processing accomplishes the base course and handles, very easily causes waterproofing membrane to paste easy fracture and hollowing in the department with pile body all around, if produce the shrink crack in bottom plate bulky concrete construction and just take place in pile body department, then cause the condition of bottom plate infiltration very easily, seriously influenced the quality of building.

Disclosure of Invention

The invention aims to solve the technical problem of providing a method for polishing a waterproof base layer of an underground pile body of a building. The polishing treatment method has good waterproof effect of the pile body, ensures the integrity of the waterproof coiled material of the underground pile body, avoids cracking and hollowing, and effectively improves the waterproof effect of the underground pile body, thereby ensuring the quality of buildings. The technical scheme is as follows:

in order to solve the technical problem, the processing method for polishing the waterproof base layer of the underground pile body comprises the following steps:

the method comprises the following steps: before pile body chiseling, a toothless saw is adopted to cut along the pile body at the designed elevation position of the pile body, the cutting depth is the thickness of the steel bar protective layer, and steel bars cannot be cut.

Step two: and (4) adopting an air pick to pick and chisel the pile body concrete until the distance between the pile body and the designed elevation is 5 cm, stopping the construction of the air pick, and manually picking and chiseling the pile body concrete until the designed elevation is reached.

Step three: and (4) polishing the external corner and the pile core part of the pile body by using a polishing machine until the surface of the concrete is flat.

Step four: the surface of the pile body is washed by clear water until no particles such as dust and the like exist on the surface.

Step five: cement mortar is adopted to level the adjacent base layer of the underground pile body, the uneven position of the adjacent base layer is repaired, and the joint of the underground pile body and the adjacent base layer is provided with a circular arc internal corner to facilitate the adhesion with the waterproof coiled material.

Step six: the adjacent base layer of the underground pile body is pasted with the waterproof coiled material, so that waterproof treatment is realized.

Compared with the prior art, the invention has the beneficial effects that: this application is before realizing waterproof pasting operation, picks the chisel through with the pile body and polishes the processing, has replaced traditional pile body basic unit to handle and has only picked the chisel with pile body concrete, simply handles the basic unit surface, makes the working face more level and more smooth, more effectual water-proof effects that reaches, ensures underground pile body waterproofing membrane's integrality, avoids fracture and hollowing, has effectively improved underground pile body's water-proof effects to high-rise building's quality has been guaranteed.

Drawings

FIG. 1 is a schematic view of the method for polishing the waterproof base layer of the underground pile body of the building.

Description of the symbols: 1-designing an elevation position; 2, removing the pile body; 3-removing concrete; 4-grinding position; 5-adjacent base layer; 6-a reinforced concrete pile body; 7-waterproof coiled material.

Detailed Description

In order that the invention may be more clearly understood, the invention is described in further detail with reference to the accompanying drawings.

As shown in figure 1, the waterproof treatment method for the underground pile body of the high-rise building comprises the following steps:

the method comprises the following steps: before pile body chiseling, cutting along the reinforced concrete pile body 6 at a designed elevation position 1 by using a toothless saw, wherein the cutting depth is the thickness of a steel bar protective layer, and steel bars cannot be cut;

step two: adopting an air pick to remove concrete, picking and chiseling to remove a pile body 2, picking and chiseling to 5 cm above a designed elevation of the pile body, stopping the construction of the air pick, and manually picking and chiseling to remove the concrete 3 to the designed elevation position 1;

step three: polishing the external corner and the pile core part at the pile body position at the polishing position 4 by using a polishing machine until the surface of the concrete is flat;

step four: the surface of the pile body is washed by clear water until no particles such as dust and the like exist on the surface;

step five: leveling the adjacent base layer 5 of the underground pile body by adopting cement mortar, repairing the uneven position of the adjacent base layer 5, and making an arc internal corner at the joint of the underground pile body and the adjacent base layer 5;

step six: the adjacent base layer 5 of the underground pile body is pasted with the waterproof coiled material 7, so that waterproof treatment is realized.